A floating joint for a battery charging device, a floating joint assembly and a battery charging device

Abstract

The utility model relates to a kind of floating connector for battery charging device, comprising: fixed seat;Floating unit, elastically connected to fixed seat;Plug-in unit, be located in floating unit;Further include, support part, be located in the periphery of floating unit, inside form accommodating cavity, and support part and plug-in unit between form installation gap;Connecting buckle, be located in accommodating cavity, it is at least part from accommodating cavity protrude and extend into installation gap, to be used for detachable connection battery.The utility model further discloses a kind of floating connector assembly for battery charging device, a kind of battery charging device.The utility model is provided with connecting buckle on the floating connector of battery charging device, when the floating connector of the floating connector assembly of battery charging device and fixed connector electrically connects, connecting buckle can be locked to battery simultaneously, the assembly structure of battery is more stable, the electric connection of battery and battery mounting frame is more stable;Connecting buckle is directly set on floating connector, structure simplifies, overall space occupation is small.

Description

Technical Field

[0001] This utility model relates to the field of battery charging structure technology, and in particular to a floating connector, a floating connector assembly, and a battery charging device for a battery charging device. Background Technology

[0002] With the widespread adoption of commercial high-energy-density lithium batteries, more and more users are choosing lithium battery electric vehicles as daily transportation and production tools. To facilitate the charging of electric vehicles, battery swapping stations need to be set up to extend travel distance. In battery swapping stations, batteries are installed on battery mounting racks for charging.

[0003] To address the issues of relatively complex battery locking structures and inconvenient locking and unlocking operations in existing technologies, this invention proposes a battery charging device with a simple structure, reasonable layout, and convenient battery insertion and removal operations. To further improve its assembly stability, this invention utilizes the structure of the battery connector in conjunction with a battery locking mechanism to achieve more stable locking of the battery. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a floating connector, a floating connector assembly, and a battery charging device. The floating connector has a connecting buckle directly set on it, which locks the battery while the floating connector and the fixed connector are electrically connected. This makes the battery assembly structure more stable and the electrical connection between the battery and the battery mounting bracket more stable.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a floating connector for a battery charging device, comprising: Fixed base; The floating unit is elastically connected to the fixed base; The plug-in unit is located on the floating unit; it also includes, A support portion is provided on the periphery of the floating unit, and an accommodating cavity is formed inside it, with an installation gap formed between the support portion and the plug-in unit; A connecting clip is provided in the receiving cavity, at least partially protruding from the receiving cavity and extending into the installation gap for removable connection of the battery.

[0006] Furthermore, the connecting buckle includes a shaft disposed in the receiving cavity, a buckling member rotatably connected to the shaft, and a reset member, wherein the reset member abuts against the buckling member and the support portion respectively, and the buckling member protrudes from the receiving cavity and extends into the installation gap.

[0007] Furthermore, the fastener has an inclined surface, allowing the battery to extend into the installation gap against the inclined surface.

[0008] Furthermore, the floating unit includes a floating component, a plurality of elastic components symmetrically connected to the floating component, and a movable cavity. The other end of the elastic component is connected to a fixed base. The floating component and the elastic components cooperate to move within the movable cavity. The plug-in unit is disposed on the floating component.

[0009] Furthermore, the active cavity is racetrack-shaped, and the support portion includes a first support section extending into the arcuate portion of the active cavity, and a second support section, wherein the extension direction of the second support section is consistent with the extension direction of the outer wall of the battery.

[0010] Furthermore, the floating element has a floating base, at least a portion of which extends into the movable cavity and abuts against its top surface.

[0011] This utility model discloses a floating connector assembly for a battery charging device, including the above-mentioned floating connector and a fixed connector that can be electrically connected to the floating connector, wherein the fixed connector is located at the end of the battery.

[0012] This utility model also discloses a battery charging device, including: a battery and a battery mounting bracket. The outer wall of the battery has teeth that extend along the axial direction of the battery. The battery mounting bracket includes an installation channel formed by a bracket, a charging end plate located at the end of the installation channel, and a battery locking mechanism. The charging end plate is provided with the aforementioned floating connector. The end face of the battery is provided with a fixed connector that can be electrically connected to the floating connector. The battery locking mechanism and the connecting buckle are provided on opposite sides of the battery.

[0013] The beneficial effects of this utility model are: 1) By setting a connecting buckle on the floating connector of the battery charging device, when the floating connector and the fixed connector of the floating connector assembly of the battery charging device are electrically connected, the connecting buckle can simultaneously lock the battery, making the battery assembly structure more stable and the electrical connection between the battery and the battery mounting bracket more stable; 2) By directly setting the connecting buckle on the floating connector, the structure is simplified and the overall structure occupies less space; 3) The connecting buckle and the battery locking mechanism are positioned opposite each other on both sides of the battery, achieving a more stable lock of the battery mounting bracket on the battery, preventing the battery from falling off at will, and the locking action... The process of inserting the battery into the installation channel is convenient; 4) The connecting buckle and the teeth on the side wall of the battery engage with each other. When the battery is inserted into the installation channel, it can slide in against the inclined surface of the buckle. When the fixed connector at the bottom of the battery and the floating connector are electrically connected, the buckle automatically locks with the battery, making the operation convenient; 5) The design of the support increases the structural strength of the connecting buckle, ensuring that it can securely lock the battery; 6) The floating connector is offset. When the battery is inserted into the battery mounting bracket and electrically connected to the floating connector, the displacement compensation mechanism of the floating unit makes the battery assembly tolerance stronger. Attached Figure Description

[0014] Figure 1This is an exploded structural diagram of the floating joint provided by this utility model.

[0015] Figure 2 A perspective view of the floating joint provided by this utility model.

[0016] Figure 3 Partial three-dimensional representation of the floating joint provided by this utility model Figure 1 .

[0017] Figure 4 A cross-sectional view of the floating joint provided by this utility model.

[0018] Figure 5 Partial three-dimensional representation of the floating joint provided by this utility model Figure 2 .

[0019] Figure 6 for Figure 5 Enlarged view of the structure at point A in the image.

[0020] Figure 7 Partial three-dimensional representation of the floating joint provided by this utility model Figure 3 .

[0021] Figure 8 Partial three-dimensional representation of the floating joint provided by this utility model Figure 4 .

[0022] Figure 9 A perspective view of the floating joint assembly provided by this utility model.

[0023] Figure 10 This is an exploded structural diagram of the floating joint assembly provided by this utility model.

[0024] Figure 11 A perspective view of the battery charging device provided by this utility model.

[0025] Figure 12 Schematic diagram of the mating structure of the charging terminal board and floating connector assembly provided by this utility model Figure 1 .

[0026] Figure 13 Schematic diagram of the mating structure of the charging terminal board and floating connector assembly provided by this utility model Figure 2 .

[0027] Figure 14 This is a perspective view of the battery charging device provided by this utility model, in which the battery is not fully assembled into the installation channel.

[0028] Among them, 1-fixed base, 2-floating unit, 21-floating component, 211-floating base, 212-mounting platform, 213-notch, 214-spring column, 22-elastic component, 23-moving cavity, 231-first moving cavity, 232-second moving cavity, 3-plug-in unit, 31-plug-in positioning column, 4-support part, 41-accommodating cavity, 42-first support section, 43-second support section, 5-installation gap, 6-connecting buckle, 61-shaft, 62-buckle, 621-inclined surface, 63-reset component, 7-battery, 71-tooth part, 8-fixed connector, 81-plug-in positioning hole, 811-flared conical surface, 9-battery mounting bracket, 91-bracket, 92-installation channel, 93-charging end plate, 94-battery locking mechanism. Detailed Implementation

[0029] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0030] A floating connector for a battery charging device includes a fixed base 1, a floating unit 2 elastically connected to the fixed base 1, a plug-in unit 3 disposed on the floating unit 2, a support portion 4 disposed around the floating unit 2, and a connecting buckle 6. The support portion 4 has a receiving cavity 41 formed inside, and an installation gap 5 is formed between the support portion 4 and the plug-in unit 3. The connecting buckle 6 is disposed within the receiving cavity 41, and at least a portion of the connecting buckle 6 protrudes from the receiving cavity 41 and extends into the installation gap 5, thereby allowing for detachable and secure connection of a battery 7.

[0031] The connecting buckle 6 includes a shaft 61 laterally disposed within the receiving cavity 41, a buckling member 62 rotatably connected to the shaft 61, and a reset member 63, which abuts against the buckling member 62 and the support portion 4 respectively. Specifically, in this embodiment, the reset member 63 is a torsion spring, with its closed end sleeved on the shaft 61, and its two open ends abutting against the buckling member 62 and the portion of the support portion 4 corresponding to the receiving cavity 41 respectively. In the initial state, a portion of the buckling member 62 protrudes from the receiving cavity 41 and extends into the installation gap 5.

[0032] The top surface of the snap fastener 62 has an inclined surface 621 that extends inclinedly from top to bottom toward the direction of the insertion unit 3, so that when part of the battery 7 is inserted into the installation gap 5 from top to bottom, it can extend into the installation gap 5 against the inclined surface 621.

[0033] The floating unit 2 includes a floating element 21, a plurality of elastic elements 22 symmetrically connected to the outer periphery of the floating element 21, and a movable cavity 23. The other end of the elastic element 22 is connected to the fixed base 1. The floating element 23 and the elastic element 22 cooperate to move in the movable cavity 23. The plug-in unit 3 is disposed on the floating element 21.

[0034] Specifically, the movable cavity 23 is formed inside the fixed base 1. The movable cavity 23 is racetrack shaped and includes a first movable cavity 231 with a larger inner diameter formed inside the fixed base 1, and a second movable cavity 232 with a smaller inner diameter formed on the surface of the fixed base 1.

[0035] Correspondingly, the floating component 21 includes a floating base 211 and a mounting platform 212 located on the top surface of the floating base 211. The outer edge of the floating base 211 extends into the first movable cavity 231, and the top surface of the floating base 211 abuts against the top surface of the first movable cavity 231, that is, the top surface of the floating base 211 abuts against the fixed seat 1 corresponding to the first movable cavity 231. The mounting platform 212 is located in the second movable cavity 232, and the outer diameter of the mounting platform 212 is smaller than the inner diameter of the second movable cavity 232, so that the floating component 21 and the elastic component 22 can float freely in the movable cavity 23, specifically by offsetting in any direction on the horizontal plane.

[0036] Four elastic elements 22 are connected to the outer periphery of the floating base 211. All elastic elements 22 are symmetrically arranged, including symmetry with respect to the center line of the floating base 211 in the length direction and symmetry with respect to the center line of the floating base 211 in the width direction. The elastic elements 22 are springs. To prevent the elastic elements 22 from excessively shifting, a notch is formed on the floating base 211. At least a portion of the elastic element 22 is accommodated within the notch 213. The two sides of the notch 213 can provide a certain limiting effect on the elastic element 22.

[0037] To prevent the elastic element 22 from easily detaching from one end of the floating base 211, a spring post 214 is provided on the floating base 211. The length of the spring post 214 is adapted to the height of the floating base 211, so that one end of the elastic element 22 is connected to the middle of the spring post 214 and will not easily pop out and detach from the spring post 214.

[0038] The support portion 4 includes a first support section 42 extending into the arcuate portion of the movable cavity 23, and a second support section 43 extending from the first support section 42. The first support section 42 extends in the same direction as the outer arcuate portion of the second movable cavity 232, and the second support section 43 extends in the same direction as the outer wall of the battery 7. The first support section 42 and the second support section 43 are provided on both sides of the receiving cavity 41, that is, the first support section 42 and the second support section 43 are provided on each of the two adjacent side walls of the battery 7. The provision of the first support section 42 and the second support section 43 increases the structural strength of the support portion 4, ensures the strength of the connecting buckle 6, ensures that it can securely lock the battery 7, and ensures the stability of the connecting buckle 6 in use, ensuring that it can work normally and will not undergo plastic deformation due to the pulling of the battery 7.

[0039] Most of the structure of the plug-in unit 3 is the structure in the prior art. The floating unit 2 is provided with plug-in positioning posts 31 on both sides. The top of the plug-in positioning post 31 is a conical arc surface.

[0040] A floating connector assembly for a battery charging device includes the aforementioned floating connector and a fixed connector 8 that can be electrically connected to the floating connector. The fixed connector 8 is disposed at the end of the battery 7. The structure of the part of the fixed connector 8 that is electrically connected to the plug-in unit 3 is a structure in the prior art. A plug-in positioning hole 81 is provided on the plug-in positioning post 31. The plug-in positioning hole 81 forms a flared conical surface 811 on the side facing the plug-in unit 3. When the plug-in positioning post 31 and the plug-in positioning hole 81 are plugged in, the top conical arc surface can abut against the flared conical surface 811 and enter the plug-in positioning hole 81, which is quick to position and easy to install.

[0041] A battery charging device includes a battery 7 and a battery mounting bracket 9. The outer wall of the battery 7 has teeth 71 that extend along the axial direction of the battery 7. The battery mounting bracket 9 includes a mounting channel 92 formed by a bracket 91, a charging end plate 93 located at the end of the mounting channel 92, and a battery locking mechanism 94. The charging end plate 93 is provided with a floating connector of the above structure, and the battery locking mechanism 94 is also provided on the charging end plate 93. The end face of the battery 7 is provided with a fixed connector 8 that can be electrically connected to the floating connector. When the battery 7 is inserted into the mounting channel 92 until the fixed connector 8 is electrically connected to the floating connector, a portion of the battery 7 extends into the mounting gap 5. The battery locking mechanism 94 and the connecting buckle 6 are provided on opposite sides of the battery 7, and together they lock the battery 7 on both sides, thereby achieving a stable assembly of the battery 7.

[0042] In this embodiment, the teeth 71 extend along the entire length of the battery 7, or in other words, extend along most of the length of the battery 7. The battery locking mechanism 94 can be any structure in the prior art. It is disposed opposite to the connecting buckle 6 on both sides of the battery 7. When the battery 7 is inserted into the mounting channel 92, the teeth 71 of the battery 7 are inserted into the mounting gap 5 from top to bottom and extend into the mounting gap 5 against the inclined surface 621 of the buckle 62. The battery locking mechanism 94 and the connecting buckle 6 cooperate with each other to form a stable limiting fixation on both sides of the battery 7, making the assembly structure of the battery 7 more stable.

[0043] The battery 7 is roughly hexagonal in shape. The second support section 43 is set parallel to the outer wall of the battery 7. The second support section 43 surrounds the outside of the floating joint, providing a certain degree of protection. At the same time, it is set along the direction parallel to the outer wall of the battery 7, so it does not take up too much space.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A floating connector for a battery charging device, comprising: Fixed base (1); The floating unit (2) is elastically connected to the fixed base (1); The plug-in unit (3) is disposed on the floating unit (2); characterized in that it further includes, The support part (4) is located on the periphery of the floating unit (2), and has a receiving cavity (41) inside. An installation gap (5) is formed between the support part (4) and the plug-in unit (3). A connecting clip (6) is provided in the receiving cavity (41), at least part of which protrudes from the receiving cavity (41) and extends into the mounting gap (5) for removable connection of the battery (7).

2. The floating connector for a battery charging device according to claim 1, characterized in that: The connecting buckle (6) includes a shaft (61) disposed in the receiving cavity (41), a buckle (62) rotatably connected to the shaft (61), and a reset member (63). The reset member (63) abuts against the buckle (62) and the support (4) respectively. The buckle (62) protrudes from the receiving cavity (41) and extends into the installation gap (5).

3. The floating connector for a battery charging device according to claim 2, characterized in that: The buckle (62) has an inclined surface (621), and the battery (7) can be inserted into the installation gap (5) against the inclined surface (621).

4. The floating connector for a battery charging device according to claim 1, characterized in that: The floating unit (2) includes a floating element (21), a plurality of elastic elements (22) symmetrically connected to the floating element (21), and a movable cavity (23). The other end of the elastic element (22) is connected to the fixed base (1). The floating element (21) and the elastic element (22) cooperate to move in the movable cavity (23). The plug-in unit (3) is located on the floating element (21).

5. The floating connector for a battery charging device according to claim 4, characterized in that: The active cavity (23) is runway-shaped, and the support part (4) includes a first support section (42) extending to the arc-shaped portion of the active cavity (23) and a second support section (43). The extension direction of the second support section (43) is consistent with the extension direction of the outer wall of the battery (7).

6. The floating connector for a battery charging device according to claim 4, characterized in that: The floating element (21) has a floating base (211) at least part of which extends into the movable cavity (23) and abuts against its top surface.

7. A floating connector assembly for a battery charging device, characterized in that: It includes a floating connector as described in any one of claims 1-6, and a fixed connector (8) that can be electrically connected to the floating connector, the fixed connector (8) being disposed at the end of the battery (7).

8. A battery charging device, characterized in that, include: The battery (7) and battery mounting bracket (9) have teeth (71) on their outer wall, which extend axially along the battery (7). The battery mounting bracket (9) includes an installation channel (92) formed by the bracket (91), a charging end plate (93) at the end of the installation channel (92), and a battery locking mechanism (94). The charging end plate (93) is provided with a floating connector as described in any one of claims 1-6. The end face of the battery (7) is provided with a fixed connector (8) that can be electrically connected to the floating connector. The battery locking mechanism (94) and the connecting buckle (6) are provided on opposite sides of the battery (7).

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