Battery switching structure and battery replacing vehicle

Abstract

The utility model discloses a battery switching structure and a battery replacing vehicle, and belongs to the field of battery switching. The battery adapter structure comprises an adapter plate and further comprises a pole fixedly connected to the adapter plate, and at least part of the end, close to the adapter plate, of the pole penetrates through the adapter plate; the polar plate is fixedly connected to the end, close to the adapter plate, of the pole, a safety unit is arranged at the end, close to the polar plate, of the pole, and when the circuit is short-circuited, the safety unit can enable the circuit to be in an open-circuit state; the clamping reset unit is arranged between the pole and the safety unit and is used for adjusting the relative position of the safety unit between the pole and the pole plate; according to the utility model, the problems of complicated operation, short service life, poor use effect and poorer stability of a battery switching structure can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery connection, in particular to a battery connection structure and a battery replacement vehicle. Background Art

[0002] As a mobile charging and battery replacement device, a battery replacement vehicle needs to load multiple battery packs and charging guns and other devices in its vehicle body. In order to ensure stable power output, a battery connection structure needs to be set between the battery pack and the electrical equipment to facilitate the use of the electrical equipment, which mainly plays the role of a bridge between the battery pack and the electrical equipment.

[0003] Currently, for the battery connection structure, it is mainly to set a short-circuit fuse mechanism to ensure the safety of the battery and the electrical equipment. Most of the existing fuse mechanisms are disposable structures. Even if the fuse structure can be used multiple times, it is necessary to replace the fuse structure or reset it after being triggered, and the operation is relatively cumbersome; moreover, the fuse structure will shorten its life with the increase of its use times, and at the same time reduce its use effect and stability. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems of cumbersome operation, short service life, poor use effect and poor stability of the existing battery connection structure, and to propose a battery connection structure and a battery replacement vehicle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A battery connection structure, including a connection plate, further including: a pole column fixedly connected to the connection plate, at least part of one end of the pole column close to the connection plate penetrates through the connection plate; a plate electrode fixedly connected to one end of the pole column close to the connection plate, wherein a safety unit is arranged at one end of the pole column close to the plate electrode, and when a short circuit occurs in the circuit, the safety unit can make the circuit in an open state; a clamping and resetting unit arranged between the pole column and the safety unit for adjusting the relative position of the safety unit between the pole column and the plate electrode.

[0007] In order to ensure the stability of the movable pole block in the plate electrode, preferably, the safety unit includes an installation groove opened on one side of the plate electrode close to the pole column, one side of the installation groove close to the pole column is inclined, a sliding groove communicated with the installation groove is opened on one side of the pole column close to the plate electrode, a movable pole block is slidably connected between the installation groove and the sliding groove, and a clamping part is arranged on the side wall of one end of the movable pole block close to the installation groove; wherein, the movable pole block is in close fit with the inner walls of the installation groove and the sliding groove, and the clamping part is in close fit with the inner wall of the installation groove.

[0008] To facilitate the switching between the open circuit and the closed circuit between the electrode plate and the electrode post, further, the connection part between the electrode post and the electrode plate is made of an insulating material. The inner wall of the chute and the movable pole piece both include an electrically connected part and a non-electrically connected part. When the movable pole piece is located below the chute, the electrically connected part of the movable pole piece is in contact with the electrically connected part on the inner wall of the chute. When the movable pole piece is located above the chute, the electrically connected part of the movable pole piece is in contact with the non-electrically connected part on the inner wall of the chute.

[0009] To ensure the stability of the movement of the movable pole piece, furthermore, the safety unit further includes a gas storage cavity opened on one side of the electrode plate close to the bottom of the installation groove. There is a thermosensitive gas between the gas storage cavity and the engaging part. When the thermosensitive gas is heated, its volume increases.

[0010] To ensure the stability when the electrode plate and the electrode post are in an open circuit, further, the engaging and resetting unit includes a mounting part fixedly connected to the side of the movable pole piece away from the engaging part. The size of the mounting part is smaller than that of the movable pole piece. A plurality of groups of first protrusions are uniformly arranged on the side of the mounting part close to the chute. A second protrusion matching the first protrusion is arranged on the side of the chute close to the mounting part.

[0011] To facilitate the resetting of the movable pole piece, furthermore, it further includes a through hole opened in the electrode post. The through hole is communicated with the chute. A pressing rod slidably connected to the through hole is fixedly connected to the side of the mounting part away from the movable pole piece.

[0012] To reduce the vibration between the battery pack, the adapter board and the housing, preferably, it further includes a spring fixedly connected to the side of the adapter board close to the electrode post. The spring is sleeved on the electrode post.

[0013] The battery swapping vehicle includes a vehicle body, a housing, a battery pack, a tab and the above-mentioned battery adapter structure. The tab is arranged on the battery pack. The battery pack is detachably connected to the housing. The housing is detachably connected to the vehicle body. The electrode plate is welded to the tab.

[0014] Compared with the prior art, the present invention provides a battery adapter structure and a battery swapping vehicle, which have the following beneficial effects:

[0015] 1. For this battery adapter structure, when the thermosensitive gas in the gas storage cavity expands when heated, the air pressure between the movable pole piece and the bottom of the installation groove increases, so as to adjust the position of the movable pole piece in the installation groove and the chute, so as to facilitate the control of the open circuit between the electrode post and the electrode plate. It can not only ensure the safety of the electrical equipment and the battery pack, but also the service life is less affected by the number of uses, greatly improving the use effect and stability of the equipment.

[0016] 2. The battery adapter structure can limit the moving distance of the movable pole block through the engaging part, ensuring the stability of the connection between the movable pole block and the pole plate, and thus ensuring the stable power transmission of the battery pack. In addition, the first protrusion and the second protrusion can ensure stability after the circuit is broken, preventing the movable pole block from returning to its initial position to make the circuit in a conductive state after the temperature drops, and also facilitating the subsequent reset of the movable pole block.

[0017] 3. The battery adapter structure can make the adapter plate and the pole plate stably fit with the battery pack through the close fit between the spring and the housing. On the one hand, it can prevent the solder joints between the pole plate and the pole ear from falling off due to vibration. On the other hand, it can reduce the impact between the adapter plate and the housing, thereby improving the stability of the device structure and ensuring the performance of the battery pack.

[0018] The parts not involved in this device are the same as or can be implemented using the prior art. The utility model can overcome the problems of cumbersome operation, short service life, poor use effect, and poor stability of the battery adapter structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the battery adapter structure proposed by the utility model Figure I .

[0020] Figure 2 is a schematic structural diagram of the battery adapter structure proposed by the utility model Figure II .

[0021] Figure 3 is a partial structural schematic diagram of the battery adapter structure proposed by the utility model.

[0022] Figure 4 is a partial cross-sectional structural schematic diagram of the battery adapter structure proposed by the utility model.

[0023] Figure 5 is the battery adapter structure proposed by the utility model Figure 4 in the schematic diagram of part A of the structure.

[0024] In the figure: 1. Adapter plate; 2. Pole column; 3. Spring; 4. Pole plate; 5. Pole ear; 6. Installation groove; 7. Gas storage cavity; 8. Movable pole block; 9. Engaging part; 10. Installation part; 11. Slide groove; 12. First protrusion; 13. Second protrusion; 14. Pressure rod; 15. Through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Embodiment:

[0028] Refer to Figures 1 - 5 , the battery connection structure includes a connection board 1, and further includes: a pole column 2 fixedly connected to the connection board 1, at least a part of one end of the pole column 2 close to the connection board 1 penetrates through the connection board 1, and further includes a spring 3 fixedly connected to the side of the connection board 1 close to the pole column 2, the spring 3 is sleeved on the pole column 2; a plate electrode 4 fixedly connected to one end of the pole column 2 close to the connection board 1, wherein a safety unit is arranged at one end of the pole column 2 close to the plate electrode 4, and when a short circuit occurs in the circuit, the safety unit can make the circuit in an open state; a clamping and resetting unit arranged between the pole column 2 and the safety unit, which is used to adjust the relative position of the safety unit between the pole column 2 and the plate electrode 4.

[0029] Refer to Figures 3 - 5 , the safety unit includes a mounting groove 6 opened on the side of the plate electrode 4 close to the pole column 2, the side of the mounting groove 6 close to the pole column 2 is inclined, a sliding groove 11 communicated with the mounting groove 6 is opened on the side of the pole column 2 close to the plate electrode 4, a movable pole block 8 is slidably connected between the mounting groove 6 and the sliding groove 11, and a clamping portion 9 is arranged on the side wall of one end of the movable pole block 8 close to the mounting groove 6; wherein, the movable pole block 8 is in close fit with the inner walls of the mounting groove 6 and the sliding groove 11, and the clamping portion 9 is in close fit with the inner wall of the mounting groove 6. It should be explained that the pole column 2 is used to be connected with an electrical device to realize the transmission of electric power. Under the action of the clamping portion 9, the movable pole block 8 will never be separated from the mounting groove 6 during the moving process.

[0030] Refer to Figure 5, the connection between the terminal post 2 and the electrode plate 4 is made of insulating material. The inner wall of the sliding groove 11 and the movable pole piece 8 both include an electrically connected part and a non-electrically connected part. When the movable pole piece 8 is located below the sliding groove 11, the electrically connected part of the movable pole piece 8 is in contact with the electrically connected part on the inner wall of the sliding groove 11. When the movable pole piece 8 is located above the sliding groove 11, the electrically connected part of the movable pole piece 8 is in contact with the non-electrically connected part on the inner wall of the sliding groove 11. First, during the movement of the movable pole piece 8, the engaging part 9 is always in contact with the inner wall of the mounting groove 6, and the movable pole piece 8 is always in contact with the inner wall of the sliding groove 11. Among them, the non-electrically connected part of the movable pole piece 8 can be realized by setting insulating materials on the outer side wall of the movable pole piece 8 and the inner wall of the sliding groove 11. This is a conventional means in the prior art, so it will not be elaborated here.

[0031] Refer to Figure 5 , the safety unit further includes an air storage cavity 7 opened on one side of the electrode plate 4 close to the bottom of the mounting groove 6. A thermosensitive gas is provided between the air storage cavity 7 and the engaging part 9. When the thermosensitive gas is heated, its volume increases. The type of the thermosensitive gas is not limited here, as long as it can achieve an increase in volume when heated and will not affect the circuit.

[0032] Refer to Figure 1 , Figure 4 and Figure 5 , the engaging and resetting unit includes a mounting part 10 fixedly connected to the side of the movable pole piece 8 away from the engaging part 9. The size of the mounting part 10 is smaller than that of the movable pole piece 8. A plurality of groups of first protrusions 12 are evenly arranged on the side of the mounting part 10 close to the sliding groove 11. A second protrusion 13 matching the first protrusion 12 is provided on the side of the sliding groove 11 close to the mounting part 10. Among them, both the first protrusion 12 and the second protrusion 13 have a certain elasticity and are non-conductive. When the pressure between the first protrusion 12 and the second protrusion 13 reaches a certain value, relative displacement can occur between the first protrusion 12 and the second protrusion 13, that is, the first protrusion 12 and the second protrusion 13 move to the opposite side. The first protrusion 12 and the second protrusion 13 can also be in a ring structure.

[0033] Refer to Figure 1 and Figure 4 , it further includes a through hole 15 opened in the terminal post 2. The through hole 15 is communicated with the sliding groove 11. A pressure rod 14 slidably connected to the through hole 15 is fixedly connected to the side of the mounting part 10 away from the movable pole piece 8. Initially (that is, when the circuit is in a conducting state), the pressure rod 14 is completely inside the through hole 15. It should be noted that when the terminal post 2 is connected to the electrical equipment, the end of the terminal post 2 is usually not affected, that is, the end of the terminal post 2 will not be squeezed or the like.

[0034] Refer to Figures 1 - 2The battery replacement vehicle includes a vehicle body, a housing, a battery pack, a tab 5, and the above-mentioned battery connection structure. The tab 5 is provided on the battery pack. The battery pack is detachably connected to the housing, and the housing is detachably connected to the vehicle body. The electrode plate 4 is welded to the tab 5. Among them, the tab 5 is connected to the positive and negative electrode materials of the battery pack, and the pole column 2 penetrates from the inside of the housing to the outside, and the spring 3 is compressed in this process.

[0035] In the present utility model, first, the electrode plate 4 is fixed to the tab 5 of the battery pack by welding. Then, the pole column 2 passes through the hole on the housing. At this time, the battery pack is located inside the housing. After the battery pack is fixed, the spring 3 is in a compressed state, which not only reduces the vibration between the electrode plate 4 and the tab 5, and the collision between the adapter plate 1 and the housing; during normal operation, the movable pole block 8 is located below the installation groove 6, and the electrical connection between the pole column 2 and the electrode plate 4 can be realized through the movable pole block 8, so that the circuit is in a conductive state; when a short circuit occurs in the electrical equipment, the stability of the electrode plate 4 and the pole column 2 will increase. At this time, the gas in the gas storage cavity 7 will expand rapidly, so that the air pressure between the movable pole block 8 and the bottom of the installation groove 6 increases, thereby driving the movable pole block 8 to move upward in the installation groove 6 until the first protrusion 12 moves above the second protrusion 13. Then, the movable pole block 8 is fixed here, and the electrical connection part on the movable pole block 8 is disengaged from the non-electrical connection part on the sliding groove 11, so that the circuit is in an open state, and at the same time, the pressure rod 14 extends to the outside of the pole column 2, thereby ensuring the safety of the electrical equipment and the battery pack; when the electrical equipment is repaired, pressing the pressure rod 14 downward can disengage the first protrusion 12 and the second protrusion 13, and move the movable pole block 8 to the initial position, so as to facilitate the circuit to return to the conductive state again. It is not only simple to operate, but also ensures the stability of the circuit conduction and interruption, and extends the service life of the equipment.

[0036] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A battery adapter structure, comprising an adapter plate (1), characterized in that: Also includes: A pole (2) fixedly connected to the adapter plate (1), wherein one end of the pole (2) close to the adapter plate (1) at least partially penetrates the adapter plate (1); A pole plate (4) fixedly connected to one end of the pole (2) close to the adapter plate (1), Wherein, a safety unit is provided at one end of the pole (2) close to the pole plate (4), and when a short circuit occurs in the circuit, the safety unit can put the circuit into an open circuit state; A snap-on reset unit is arranged between the pole (2) and the safety unit and is used to adjust the relative position of the safety unit between the pole (2) and the pole plate (4).

2. The battery transfer structure according to claim 1, characterized in that: The safety unit comprises a mounting groove (6) provided on a side of the pole plate (4) close to the pole column (2); the side of the mounting groove (6) close to the pole column (2) is arranged in an inclined manner; the side of the pole column (2) close to the pole plate (4) is provided with a slide groove (11) connected to the mounting groove (6); a movable pole block (8) is slidably connected between the mounting groove (6) and the slide groove (11); and a clamping portion (9) is provided on a side wall of the movable pole block (8) close to one end of the mounting groove (6); The movable pole block (8) is tightly fitted to the inner walls of the mounting groove (6) and the slide groove (11), and the engaging portion (9) is tightly fitted to the inner wall of the mounting groove (6).

3. The battery transfer structure according to claim 2, characterized in that: The connection between the pole (2) and the pole plate (4) is made of insulating material. The inner wall of the slide groove (11) and the movable pole block (8) both include an electrical connection portion and a non-electrical connection portion. When the movable pole block (8) is located below the slide groove (11), the electrical connection portion of the movable pole block (8) fits with the electrical connection portion on the inner wall of the slide groove (11); when the movable pole block (8) is located above the slide groove (11), the electrical connection portion of the movable pole block (8) fits with the non-electrical connection portion on the inner wall of the slide groove (11).

4. The battery transfer structure according to claim 3, characterized in that: The safety unit further comprises an air storage cavity (7) provided on one side of the electrode plate (4) close to the bottom of the mounting groove (6), and a thermosensitive gas is arranged between the air storage cavity (7) and the engaging portion (9), and the volume of the thermosensitive gas increases when heated.

5. The battery transfer structure according to claim 2, characterized in that: The locking and resetting unit comprises a mounting portion (10) fixedly connected to a side of the movable pole block (8) away from the locking portion (9); the size of the mounting portion (10) is smaller than the size of the movable pole block (8); a plurality of groups of first protrusions (12) are evenly arranged on a side of the mounting portion (10) close to the slide groove (11); and a second protrusion (13) matching the first protrusion (12) is arranged on a side of the slide groove (11) close to the mounting portion (10).

6. The battery transfer structure according to claim 5, characterized in that: It also includes a through hole (15) formed in the pole (2), the through hole (15) being connected to the slide groove (11), and a pressure rod (14) slidably connected to the through hole (15) is fixedly connected to the side of the mounting portion (10) away from the movable pole block (8).

7. The battery transfer structure according to claim 1, characterized in that: It also comprises a spring (3) fixedly connected to a side of the adapter plate (1) close to the pole (2), and the spring (3) is sleeved on the pole (2).

8. A battery-changing vehicle, characterized in that: It comprises a vehicle body, a battery pack, a pole lug (5) and a battery switching structure as described in any one of claims 1 to 7, wherein the pole lug (5) is arranged on the battery pack, the battery pack is detachably connected to the shell, the shell is detachably connected to the vehicle body, and the pole plate (4) is welded to the pole lug (5).

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