Downward-inserting battery seat barrel structure and electric vehicle applying same

Abstract

This application relates to the field of electric vehicle technology, and more particularly to a bottom-insertion battery seat structure and an electric vehicle using the same. The bottom-insertion battery seat structure includes a seat for accommodating a battery, with an opening at the top and a hollow interior forming an accommodating space. The battery is inserted into the accommodating space from top to bottom through the top opening. A bottom-insertion discharge plug assembly includes a first discharge plug terminal disposed on the inner side of the bottom of the seat and a second discharge plug terminal disposed on the bottom of the battery. Of the first and second discharge plug terminals, one is a male discharge plug terminal and the other is a female discharge plug terminal. The pins of the male discharge plug terminal and the sockets of the female discharge plug terminal face each other and are electrically connected by insertion. This solves the technical problem of low battery swapping efficiency.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and more particularly to a bottom-mounted battery seat structure and an electric vehicle using the same. Background Technology

[0002] In the electric vehicle sector, especially with the booming development of the shared electric vehicle industry, improving battery swapping efficiency has become a core requirement. However, in existing technologies, the upper part of the electric vehicle's seat bucket has a lead wire with a male plug. During the swapping process, the male plug of the lead wire needs to be inserted into the female plug of the battery each time. This is cumbersome and reduces swapping efficiency, especially for many shared electric vehicles, significantly reducing the swapping efficiency for maintenance personnel. Utility Model Content

[0003] The purpose of this application is to provide a bottom-mounted battery seat structure and an electric vehicle using the same, in order to solve the technical problem of low battery swapping efficiency.

[0004] In a first aspect, this application provides a bottom-insertion battery holder structure, comprising: a holder for accommodating a battery, the holder having an opening at the top and a hollow interior forming an accommodating space, wherein the battery is inserted into the accommodating space from top to bottom through the opening at the top; and

[0005] The bottom-mounted discharge plug assembly includes a first discharge plug terminal disposed on the inner side of the bottom of the seat and a second discharge plug terminal disposed on the bottom of the battery. Of the first discharge plug terminal and the second discharge plug terminal, one is a male discharge plug terminal and the other is a female discharge plug terminal. The pins of the male discharge plug terminal and the sockets of the female discharge plug terminal face each other and are electrically connected to each other by insertion.

[0006] Furthermore, the aforementioned bottom-mounted battery holder structure also includes a mounting plate and an elastic element;

[0007] The bottom of the seat bucket is provided with the mounting plate corresponding to the position where the first discharge plug terminal is installed, and the first discharge plug terminal is fixedly connected to the mounting plate by a connector.

[0008] The elastic element is elastically connected between the first discharge plug terminal and the mounting plate.

[0009] Furthermore, the connector uses a limiting screw, the shaft of which is divided into a limiting smooth rod section and a threaded connection section from top to bottom. The threaded connection section is threadedly connected and fixed to the screw hole on the mounting plate, and the limiting smooth rod section provides elastic vertical movement space for the first discharge plug terminal.

[0010] Furthermore, the first discharge plug terminal includes a first discharge plug terminal body and a base, wherein the circumferential edge of the base is provided with a plurality of mounting holes for the plurality of the limiting screws to be installed through.

[0011] Correspondingly, the mounting plate is provided with a plurality of screw holes that are aligned vertically with each of the mounting holes, and the plurality of limiting screws pass through the mounting holes and are threadedly connected to the screw holes for fixation.

[0012] Furthermore, the aforementioned bottom-insertion battery holder structure is provided with multiple elastic elements;

[0013] Each of the aforementioned elastic elements is fitted onto the outer periphery of each of the aforementioned limiting screws in a corresponding manner; or

[0014] Each of the elastic elements and each of the limiting screws are spaced apart along the circumferential edge of the base, and the upper and lower ends of each elastic element are respectively fixedly connected to the bottom surface of the base of the first discharge plug terminal and the top surface of the mounting plate.

[0015] Furthermore, the elastic element is a conical spring; and / or

[0016] The length of the limiting rod section of the limiting screw is 5-8mm.

[0017] Furthermore, at least one side wall inside the seat is fitted with a first cushioning pad to prevent the battery from swaying laterally; and / or

[0018] The top of the opening of the seat bucket is rotatably connected to a seat cushion, and the bottom of the seat cushion's base plate is provided with a second cushioning pad.

[0019] Furthermore, the outer periphery of the first discharge plug terminal body is provided with a plurality of first drainage holes; and / or

[0020] The mounting plate is provided with multiple second drainage holes; and / or

[0021] The bottom of the seat bucket is provided with multiple third drainage holes.

[0022] Furthermore, at least one outer side wall of the first discharge plug terminal body is provided with a row of spaced-apart first leakage holes; and / or

[0023] The mounting plate is provided with the second drainage hole at each of its four corners; and / or

[0024] The third drainage hole is provided at each of the four corners of the bottom of the seat.

[0025] Secondly, this application provides an electric vehicle, including the plug-in battery seat structure described in any one of the preceding descriptions, and further including a frame and a seat support plate. The seat support plate is welded and fixed on the frame, the plug-in battery seat structure is installed at a corresponding position on the frame, and the bottom of the plug-in battery seat structure is supported on the top of the seat support plate.

[0026] Compared with the prior art, the present application provides a bottom-mounted battery seat structure and an electric vehicle using the same. The bottom-mounted battery seat structure includes a seat for accommodating the battery, the top of which is open and the interior is hollow to form a receiving space for accommodating the battery, and the battery is placed into the receiving space from top to bottom through the top opening; and a bottom-mounted discharge plug assembly, which includes a first discharge plug terminal disposed on the bottom inner side of the seat and a second discharge plug terminal disposed on the bottom of the battery. Of the first and second discharge plug terminals, one is a male discharge plug terminal and the other is a female discharge plug terminal, and the pin of the male discharge plug terminal and the socket of the female discharge plug terminal face each other and can be inserted into each other for electrical connection.

[0027] With this configuration, the bottom-mounted battery holder structure provided in this application adopts a bottom-mounted discharge plug assembly plug-in mode. When swapping batteries, as the battery is placed from top to bottom into the holder's receiving space, the female end of the discharge plug and the male end of the discharge plug can be directly plugged in and electrically connected without the need for other connecting plugs. In contrast, existing systems require staff to insert the male end of the lead wire into the female end of the battery plug. The bottom-mounted battery holder structure provided in this application can complete the entire battery swapping process directly when the battery is placed in, improving battery swapping efficiency and reducing the labor costs for maintenance personnel. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a partial structural schematic diagram of the electric vehicle provided in an embodiment of this application;

[0030] Figure 2 This is an exploded view of the bottom-mounted battery holder structure provided in the embodiments of this application;

[0031] Figure 3 This is a diagram showing the internal structure of the seat bucket provided in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the first discharge plug terminal provided in an embodiment of this application;

[0033] Figure 5 This is a bottom view of the seat cushion provided in an embodiment of this application.

[0034] Figure label:

[0035] 100-bottom plug-in battery holder structure;

[0036] 10-Bottom Bucket;

[0037] 11-First buffer pad;

[0038] 12-Bottom plate of the toilet seat;

[0039] 121 - Third leak hole;

[0040] 20 - First discharge plug terminal;

[0041] 21-First discharge plug terminal body;

[0042] 211 - First leak hole;

[0043] 22-Base;

[0044] 221 - Mounting hole;

[0045] 23-Pin;

[0046] 30 - Mounting fixing plate;

[0047] 31 - Second leak hole;

[0048] 41 - Limit screw;

[0049] 42-Tower-shaped spring;

[0050] 50-cell battery;

[0051] 51 - Second discharge plug terminal;

[0052] 60-seat cushion;

[0053] 61 - Seat cushion cover;

[0054] 62-Seat cushion foam;

[0055] 63 - Seat cushion base plate;

[0056] 631 - Second buffer pad;

[0057] 200-frame;

[0058] 201-Seat support plate. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0061] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0062] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0063] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0064] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0065] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0066] like Figure 1 As shown, this application embodiment provides a bottom-mounted battery seat structure 100 and an electric vehicle using the bottom-mounted battery seat structure 100. Specifically, the electric vehicle also includes a frame 200 and a seat support plate 201. The seat support plate 201 is welded and fixed to the frame 200, and the bottom-mounted battery seat structure 100 is installed and fixed to the frame 200. The bottom of the bottom-mounted battery seat structure 100 is supported on the top of the seat support plate 201, and the seat support plate 201 provides longitudinal support for the seat 10.

[0067] like Figures 2 to 5 As shown, the bottom-insertion battery holder structure 100 provided in this application embodiment specifically includes a holder 10 for accommodating a battery 50. The top of the holder 10 is open, and the interior is hollow to form a accommodating space for accommodating the battery 50. The battery 50 is inserted into the accommodating space inside the holder 10 from top to bottom through the top opening.

[0068] The bottom-mounted battery holder structure 100 provided in this application embodiment also includes a bottom-mounted discharge plug assembly. The bottom-mounted discharge plug assembly includes a first discharge plug terminal 20 disposed on the inner side of the bottom of the aforementioned holder 10 and a second discharge plug terminal 51 disposed on the bottom of the battery 50. Of the first discharge plug terminal 20 and the second discharge plug terminal 51, one is a male discharge plug terminal and the other is a female discharge plug terminal. The pin 23 of the male discharge plug terminal and the socket of the female discharge plug terminal face each other and can be inserted into each other for electrical connection.

[0069] The bottom of the seat 10 is provided with the first discharge plug terminal 20. The first discharge plug terminal 20 specifically includes a first discharge plug terminal body 21 and a base 22 for mounting and connecting the first discharge plug terminal body 21. If the first discharge plug terminal 20 is set as the male end of the discharge plug, then the first discharge plug terminal body 21 is provided with a plurality of vertically upward-facing pins 23. If the first discharge plug terminal 20 is set as the female end of the discharge plug, then the first discharge plug terminal body 21 is provided with a plurality of vertically upward-facing sockets.

[0070] Correspondingly, such as Figure 2 As shown, the aforementioned battery 50 can specifically be a bottom-insertion battery. The bottom of the battery 50 is provided with the second discharge plug terminal 51. If the second discharge plug terminal 51 is set as the female end of the discharge plug, it is provided with a plurality of downward-facing insertion holes. If the second discharge plug terminal 51 is set as the male end of the discharge plug, it is provided with a plurality of downward-facing insertion pins.

[0071] Specifically, one alternative embodiment is, as follows: Figures 2 to 4 As shown, the first discharge plug terminal 20 provided on the bottom inner side of the seat 10 is the male end of the discharge plug, and the pin 23 of the male end of the discharge plug is set upward. Correspondingly, the second discharge plug terminal 51 provided on the bottom of the battery 50 is the female end of the discharge plug, and the socket of the female end of the discharge plug is set downward, and is aligned with the aforementioned upward-set pin 23 for electrical connection. After the battery 50 is placed into the receiving space inside the seat 10 from top to bottom, the socket of the female end of the discharge plug can be electrically connected with the pin 23 of the male end of the discharge plug.

[0072] Alternatively, in another optional embodiment, the first discharge plug terminal 20 provided on the bottom inner side of the seat 10 is the female end of the discharge plug, with the socket of the female end facing upwards. Correspondingly, the second discharge plug terminal 51 provided on the bottom of the battery 50 is the male end of the discharge plug, with the pin 23 of the male end facing downwards and aligned vertically with the aforementioned upward-facing socket for electrical connection. This allows the male end of the discharge plug to be directly inserted into the socket of the female end of the discharge plug for electrical connection after the battery 50 is placed inside the seat 10 from top to bottom.

[0073] Compared with the prior art, the plug-in battery seat structure 100 and the electric vehicle using it provided in this application adopt the plug-in mode of the plug-in discharge plug assembly. When swapping batteries, as the battery 50 is placed from top to bottom into the receiving space of the seat 10, the female end of the discharge plug and the male end of the discharge plug can be directly plugged in and electrically connected without the need for other connecting plugs. As with existing technologies, it is necessary for staff to insert the male end of the lead wire into the female end of the battery plug. The plug-in battery seat structure 100 provided in this application can complete the entire battery swapping process directly when the battery 50 is placed in, which improves the battery swapping efficiency and reduces the labor costs of maintenance personnel.

[0074] A further embodiment is, as follows: Figures 2 to 4 As shown, in the embodiment of this application, a mounting plate 30 can be installed at the bottom of the seat 10 of the bottom-mounted battery holder structure 10, corresponding to the position where the aforementioned first discharge plug terminal 20 is installed. The first discharge plug terminal 20 is fixedly connected to the mounting plate 30 via a connector. Specifically, a reserved hole matching the size of the mounting plate 30 can be pre-drilled at a corresponding position on the bottom plate 12 of the seat 10, and then the mounting plate 30 is installed at the reserved hole position on the bottom plate 12 of the seat 10.

[0075] The mounting plate 30 serves two purposes. First, it enhances the support for the connection of the first discharge plug terminal 20. Since the bottom plate 12 of the tub 10 is typically made of plastic, its support strength and force may be insufficient without special requirements. If the first discharge plug terminal 20 is directly mounted on the bottom plate 12, it may not only place an additional support burden on the bottom plate 12 but also lead to insufficient support and connection strength of the first discharge plug terminal 20. This problem can be solved by using the mounting plate 30 to install, connect, and support the first discharge plug terminal 20. Second, this design also facilitates the modular installation of the first discharge plug terminal 20.

[0076] Furthermore, due to the wear and tear on the male and female terminals of the discharge plug of the plug-in battery holder structure 100 provided in the aforementioned embodiments during long-term, high-frequency, repeated plugging and unplugging, and the accumulation of wear under repeated mechanical stress on the male and female terminals, the conductivity stability may decrease, and there may even be safety hazards under dynamic working conditions. That is, when the electric vehicle passes through bumpy road sections (such as speed bumps), the worn terminals are prone to instantaneous power outages or sparks, causing power interruption and safety hazards, threatening the user's riding safety.

[0077] To solve the above problems, such as Figure 2 and Figure 4 As shown, the bottom-mounted battery holder structure 100 provided in this embodiment may further include an elastic element that is elastically connected between the aforementioned first discharge plug terminal 20 and the mounting plate 30. Specifically, this elastic element may be a tower-shaped spring 42. Furthermore, the connecting member in which the aforementioned first discharge plug terminal 20 is fixedly connected to the mounting plate 30 via a connecting member may specifically be a limiting screw 41. The shaft of the limiting screw 41 is divided into a limiting smooth rod section and a threaded connection section from top to bottom. The threaded connection section is threadedly connected and fixed to a threaded hole on the mounting plate 30, used to fix the first discharge plug terminal 20 and the mounting plate 30. While maintaining the fixed connection, the limiting smooth rod section can provide the first discharge plug terminal 20 with vertical elastic movement space. Specifically, the length of the limiting smooth rod section of the limiting screw 41 may be 5~8mm.

[0078] With this configuration, and with the limit screw 41 fixed, a vertical movement of 5-8mm can be reserved, which can act as a buffer. This allows the first discharge plug terminal 20 to move up and down with the second discharge plug terminal 51 on the battery 50 when the vehicle is bumpy during riding. At the same time, it makes it difficult for the male and female terminals to move relative to each other, greatly reducing terminal wear and maintaining conductivity stability. This eliminates safety hazards caused by terminal wear and ensures the user's riding safety.

[0079] like Figure 4 As shown, in a specific embodiment, the circumferential edge of the base 22 of the first discharge plug terminal 20 is provided with a plurality of mounting holes 221 at intervals for a plurality of limiting screws 41 to be installed through; correspondingly, the mounting plate 30 is provided with a plurality of screw holes that are vertically aligned with each mounting hole 221 at corresponding positions. The plurality of limiting screws 41, the plurality of mounting holes 221 and the plurality of limiting screws 41 are provided in a one-to-one correspondence, and the corresponding limiting screws 41 pass through the mounting holes 221 and are threadedly connected and fixed to the screw holes.

[0080] A further embodiment may include multiple of the aforementioned elastic elements (such as tower springs 42). Regarding the installation method of the elastic elements, an optional embodiment is the scheme shown in the figures of this application, as follows: Figure 2 and Figure 4 As shown, each elastic element is configured as a tower-shaped spring 42, and each elastic element is fitted onto the outer periphery of each limiting screw 41 in a corresponding manner, saving installation space. While occupying the same space, it simultaneously achieves the functions of connection and fixation as well as wear-resistant elastic buffering, making efficient use of space.

[0081] Another alternative embodiment is that the elastic elements (such as the tower spring 42) and the limiting screws 41 are spaced apart along the circumferential edge of the base 22 of the first discharge plug terminal 20, and the upper and lower ends of each elastic element are respectively fixedly connected to the bottom surface of the base 22 of the first discharge plug terminal 20 and the top surface of the mounting plate 30. This facilitates separate maintenance and installation, and distributes the stress.

[0082] A preferred embodiment is, as follows: Figure 1 and Figure 2 As shown, in the embodiment of this application, at least one of the four side walls of the bottom-insertion battery seat 10 is provided with a first buffer pad 11, preferably all four side walls are provided with the first buffer pad 11, to fill the gap between the inner wall of the seat 10 and the battery and apply slight pressure to prevent the battery 50 from shaking to the side, so that the battery 50 is placed more stably and reliably.

[0083] Based on the above embodiments, it is preferable that the first buffer pad 11 is a long strip buffer pad, and correspondingly, it is preferable that all four side walls inside the seat bucket 10 are provided with strip grooves for placing the first buffer pad 11.

[0084] Another preferred embodiment is, as Figure 1 , Figure 2 and 5 As shown, a seat cushion 60 is provided to cover the top of the opening of the bucket 10. One end of the seat cushion 60 is rotatably connected to one end of the top of the opening. The opening of the bucket 10 can be opened and closed by opening and closing the seat cushion 60.

[0085] Specifically, such as Figure 2 As shown, the seat cushion 60 can be divided into a seat cushion cover 61, a seat cushion foam 62, and a seat cushion base 63. Further, as... Figure 5 As shown, a second buffer pad 631 may be provided at the bottom of the seat base plate 63. The second buffer pad 631 can press down on the battery 50 during riding, further preventing the battery 50 from vibrating up and down. Preferably, the second buffer pad 631 can be a small circular buffer pad, which is convenient for installation.

[0086] When changing batteries, it is necessary to frequently open the top of the seat cushion 60 to open the top of the seat bucket 10 opening to remove the battery inside the seat bucket 10 for replacement. During the rainy season, rainwater can easily enter the seat bucket 10. To prevent water accumulation, one possible implementation is as follows: Figure 4 As shown, the bottom of the outer periphery of the aforementioned first discharge plug terminal body 21 may be provided with a plurality of first drainage holes 211 to prevent water accumulation inside the male end of the discharge plug. Specifically, at least one outer side wall of the first discharge plug terminal body 21 may be provided with a row of a plurality of the first drainage holes 211 spaced apart, or a row of a plurality of the first drainage holes 211 may be provided on each of the two outer side walls respectively.

[0087] To prevent internal water accumulation, another alternative embodiment is, as follows: Figure 3 As shown, the aforementioned mounting plate 30 is provided with multiple second drainage holes 31, and the bottom of the seat 10 may also be provided with multiple third drainage holes 121. Specifically, the four corners of the mounting plate 30 may be provided with the second drainage holes 31, and the four corners of the bottom of the seat 10 may be provided with the third drainage holes 121.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A down-insertion battery holder tub structure characterized by, include: A seat bucket (10) for accommodating a battery (50) has an opening at the top and a hollow interior forming a accommodating space. The battery (50) is placed into the accommodating space from the top opening from top to bottom. and The bottom-mounted discharge plug assembly includes a first discharge plug terminal (20) disposed on the inner side of the bottom of the seat (10) and a second discharge plug terminal (51) disposed on the bottom of the battery (50). Of the first discharge plug terminal (20) and the second discharge plug terminal (51), one is a male discharge plug terminal and the other is a female discharge plug terminal. The pin (23) of the male discharge plug terminal and the socket of the female discharge plug terminal face each other and can be electrically connected to each other.

2. The down-insertion battery holder tub structure according to claim 1, characterized by It also includes a mounting plate (30) and elastic elements; The bottom of the seat (10) is provided with the mounting plate (30) corresponding to the position where the first discharge plug terminal (20) is installed. The first discharge plug terminal (20) is fixedly connected to the mounting plate (30) by a connector. The elastic element is elastically connected between the first discharge plug terminal (20) and the mounting plate (30).

3. The bottom-insertion battery holder structure according to claim 2, characterized in that, The connector uses a limiting screw (41). The shaft of the limiting screw (41) is divided into a limiting smooth rod section and a threaded connection section from top to bottom. The threaded connection section is threadedly connected and fixed to the screw hole on the mounting plate (30). The limiting smooth rod section provides the first discharge plug terminal (20) with elastic vertical movement space.

4. The bottom-insertion battery holder structure according to claim 3, characterized in that, The first discharge plug terminal (20) includes a first discharge plug terminal body (21) and a base (22). The base (22) has a plurality of mounting holes (221) spaced apart on its circumferential edge for the plurality of limiting screws (41) to pass through. Correspondingly, the mounting plate (30) is provided with a plurality of screw holes that are aligned vertically with each of the mounting holes (221), and the plurality of limiting screws (41) pass through the mounting holes (221) one by one and are threadedly connected and fixed to the screw holes.

5. The bottom-insertion battery holder structure according to claim 4, characterized in that, Multiple elastic elements are provided; Each of the elastic elements is fitted onto the outer periphery of each of the limiting screws (41) in a corresponding manner; or Each of the elastic elements and each of the limiting screws (41) are separated and spaced apart along the circumferential edge of the base (22). The upper and lower ends of each elastic element are respectively fixedly connected to the bottom surface of the base (22) of the first discharge plug terminal (20) and the top surface of the mounting plate (30).

6. The down-insertion battery holder tub structure according to any one of claims 3 to 5, characterized by The elastic element is a tower-shaped spring (42); and / or The length of the limiting rod section of the limiting screw (41) is 5~8mm.

7. The down-insertion battery holder tub structure according to claim 4 or 5, characterized by, The seat (10) has at least one side wall fitted with a first cushioning pad (11) to prevent the battery (50) from swaying laterally; and / or The top of the opening of the seat bucket (10) is rotatably connected to a cover and a seat cushion (60) is provided. The bottom of the bottom plate of the seat cushion (60) is provided with a second buffer pad (631).

8. The bottom-insertion battery holder structure according to claim 7, characterized in that, The outer periphery of the first discharge plug terminal body (21) is provided with a plurality of first drainage holes (211); and / or The mounting plate (30) is provided with a plurality of second drainage holes (31); and / or The bottom of the seat (10) is provided with multiple third drainage holes (121).

9. The bottom-insertion battery holder structure according to claim 8, characterized in that, The first discharge plug terminal body (21) has at least one outer side wall provided with a row of spaced-apart first leakage holes (211); and / or The mounting plate (30) is provided with the second drainage hole (31) at each of its four corners; and / or The bottom of the seat (10) is provided with the third drainage hole (121) at each of the four corners.

10. An electric vehicle, characterized by comprising: The device includes the plug-in battery seat structure (100) according to any one of claims 1 to 9, and further includes a frame (200) and a seat support plate (201). The seat support plate (201) is welded and fixed on the frame (200). The plug-in battery seat structure (100) is installed at the corresponding position on the frame (200), and the bottom of the plug-in battery seat structure (100) is supported on the top of the seat support plate (201).

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