Separating device for battery pack, battery assembly and vehicle

Abstract

The utility model relates to a separation device for a battery pack, a battery assembly and a vehicle. The separating device comprises a mounting seat body, a locking structure and a driving structure. The locking structure comprises a locking piece with a locking part and a second driving piece connected to the mounting base body. And the locking part is used for being connected with a matching part of the battery pack in an unlocking manner. And a driving shaft of the second driving piece is connected with the locking piece and can drive the locking piece to reciprocate relative to the mounting seat body in the second direction so as to switch the locking position and the unlocking position of the locking piece. The driving structure comprises a first driving piece which is rotatably connected to the mounting seat body, and the first driving piece is used for driving the battery pack to be separated from the mounting seat body when the matching part of the battery pack and the mounting seat body are unlocked. According to the technical scheme, the disengaging device is reliable to use.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy vehicles, and in particular to a detachment device for a battery pack, a battery assembly and a vehicle. Background Art

[0002] In recent years, new energy vehicles have gradually become a hot spot in the automobile market. Among them, batteries, as the power source of new energy vehicles, are the most important system in the whole vehicle. Therefore, the safe and reliable use of battery packs has become a factor that must be considered. When the battery pack accidentally catches fire, it is necessary for the battery pack to be quickly separated from the whole vehicle. In the related technology, the battery pack is fixed to the whole vehicle, and the battery pack cannot be separated from the whole vehicle. Once the battery pack catches fire for some reason, the fire will spread rapidly, causing damage to the vehicle and personnel. This leads to the problem of low safety and reliability of the battery pack. Utility Model Content

[0003] The purpose of the present disclosure is to provide a detachment device for a battery pack, a battery assembly and a vehicle, so as to improve the safety and reliability of the battery pack, so as to at least partially solve the related technical problems.

[0004] In order to achieve the above-mentioned object, according to a first aspect of the present disclosure, a detachment device for a battery pack is provided. The detachment device comprises:

[0005] Mounting seat;

[0006] A locking structure, comprising a locking member having a locking portion and a second driving member connected to the mounting seat body, wherein the locking portion is used to be unlockably connected to the matching portion of the battery pack, and a driving shaft of the second driving member is connected to the locking member and can drive the locking member to reciprocate relative to the mounting seat body along a second direction to switch the locking position and the unlocking position of the locking member; and

[0007] The driving structure includes a first driving member rotatably connected to the mounting seat body, wherein the first driving member is used to drive the battery pack to detach from the mounting seat body when the matching portion of the battery pack is unlocked from the mounting seat body.

[0008] Optionally, the locking structure also includes an elastic member and a limiting sleeve sleeved on the outside of the elastic member, the elastic member is arranged between the drive shaft and the locking member, and the second driving member is connected to the locking member through the elastic member, so that when the locking structure is in the locking position, the locking portion of the locking member can be held in the matching portion of the battery pack, and when in the unlocking position, the locking member can compress the elastic member so that the locking portion is disengaged from the matching portion of the battery pack.

[0009] Optionally, the locking structure also includes a connecting member, the second driving member is arranged on one side of the locking member and can move along the first direction, one end of the connecting member is connected to the driving shaft, and the other end passes through the side wall of the limiting sleeve and is connected to the locking member, so that the second driving member can convert its own movement along the first direction into movement of the locking member along the second direction through the connecting member.

[0010] Optionally, the mounting seat body includes a first mounting frame and a second mounting frame that are arranged opposite to each other, and two ends of the first driving member are rotatably connected to the first mounting frame and the second mounting frame respectively to drive the battery pack to move along the first direction.

[0011] Optionally, the first driving member includes a plurality of roller motors arranged at intervals, and both ends of the plurality of roller motors are respectively connected to the first mounting frame and the second mounting frame, and the roller motors can drive the battery pack to move along the first direction by rotating themselves.

[0012] Optionally, a first guide groove is provided on both the first mounting frame and the second mounting frame, and the first guide groove is used for inserting the connecting portion of the battery pack to guide the battery pack to move along the first direction under the drive of the first driving member.

[0013] According to a second aspect of the present disclosure, a battery assembly is provided, which includes a battery pack, a battery pack base, and the detachment device, wherein the battery pack is connected to the battery pack base, a connecting portion is formed or provided on the battery pack base, and the connecting portion is used to be inserted into a first guide groove to limit the movement of the battery pack along the second direction.

[0014] Optionally, the battery assembly further includes a clamping member, a second guide groove is provided on the battery pack base, one end of the clamping member is provided in the second guide groove, and the other end extends outward toward a side away from the battery pack base to form the connecting portion.

[0015] Optionally, the battery pack further comprises a mating portion, which is formed on the connecting portion for unlockably mating with a locking portion of a locking member.

[0016] According to a third aspect of the present disclosure, a vehicle is provided, comprising the battery assembly.

[0017] Through the above technical solution, a disengagement device, a battery assembly and a vehicle for a battery pack are provided. The disengagement device includes a mounting seat, a locking structure and a driving structure. The locking structure can connect the battery pack to the mounting seat in an unlockable manner. Specifically, the locking structure includes a locking member and a second driving member connected to the locking member. The second driving member can drive the locking member to move back and forth along the second direction, so that the locking member can switch between the locking position and the unlocking position to achieve the purpose of locking and unlocking the battery pack. Further, the first driving member of the driving structure can drive the battery pack to be disengaged from the mounting seat when the battery pack is unlocked from the mounting seat. The disengagement device provided by the present disclosure can be installed at a set position of the vehicle so that the battery pack can be installed on the vehicle through the disengagement device. The locking structure of the disengagement device can ensure that the battery pack is stably connected to the disengagement device for power supply when locked. In the event of an accident in which the battery pack catches fire, the locking structure can be reliably unlocked and the battery pack can be driven to be disengaged from the mounting seat in a timely manner through the first driving member to avoid further damage to the vehicle and personnel caused by the battery pack fire. The disengagement device provided by the technical solution of the present disclosure is reliable to use. Furthermore, the battery assembly equipped with the release device can also have higher reliability in use. Furthermore, the vehicle equipped with the battery assembly can also have higher driving safety.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 is a schematic structural diagram of a battery assembly provided according to an embodiment of the present disclosure;

[0021] Figure 2 is a cross-sectional schematic diagram of a battery assembly provided according to an embodiment of the present disclosure;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 is a schematic structural diagram of a disengagement device provided according to an embodiment of the present disclosure;

[0024] Figure 5 is a schematic diagram of a locking structure provided according to an embodiment of the present disclosure in a locked position;

[0025] Figure 6 It is a schematic diagram of the locking structure provided according to an embodiment of the present disclosure in the unlocked position.

[0026] Description of Reference Numerals

[0027] 100. Battery assembly; 1. Disengagement device; 11. Mounting seat; 111. First mounting frame; 111a. First upper plate; 111b. First middle plate; 111c. First lower plate; 112. Second mounting frame; 113. First guide groove; 12. Locking structure; 121. Locking member; 121a. Locking portion; 122. Second driving member; 122a. Driving shaft; 123. Elastic member; 124. Limiting sleeve; 124a. Mounting hole; 125. Connecting member; 126. Adapter plate; 13. Driving structure; 131. First driving member; 131a. Drum motor; 2. Battery pack; 21. Fitting portion; 22. Connecting portion; 3. Battery pack base; 31. Second guide groove; 32. Second upper plate; 33. Second lower plate; 4. Clip-on member. DETAILED DESCRIPTION

[0028] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0029] In the present disclosure, unless otherwise stated, "inside" and "outside" refer to the inside and outside of the corresponding component outline; in addition, it should be noted that the terms used, such as "first" and "second", are used to distinguish one element from another. In addition, the direction indicated by X in the figure is the first direction, and the direction indicated by Y is the second direction.

[0030] According to the first aspect of the present disclosure, Figure 1 , Figure 2 and Figure 3 As shown, a disengagement device 1 for a battery pack 2 is provided. The disengagement device 1 may include a mounting seat body 11, a locking structure 12 and a driving structure 13. The locking structure 12 includes a locking member 121 and a second driving member 122. The locking structure 12 includes a locking member 121 having a locking portion 121a and a second driving member 122 connected to the mounting seat body 11. The locking portion 121a is used to be unlockably connected to the mating portion 21 of the battery pack 2. The driving shaft 122a of the second driving member 122 is connected to the locking member 121, and can drive the locking member 121 to reciprocate along the second direction Y relative to the mounting seat body 11 to switch the locking position and the unlocking position of the locking member 121. Specifically, as Figure 5 As shown, in the locked position, the locking portion 121a of the locking member 121 can be connected to the matching portion 21 of the battery pack 2 to lock the movement between the battery pack 2 and the mounting seat 11. Figure 6As shown, in the unlocked position, the locking portion 121a of the locking member 121 can be disengaged from the mating portion 21 of the battery pack 2 to unlock the movement between the battery pack 2 and the mounting seat body 11. The locking member 121 is driven by the second driving member 122 to move along the second direction Y to achieve the purpose of locking and unlocking. This implementation method is simple, reliable and easy to operate. Specifically, the second driving member 122 can be constructed as an electric telescopic cylinder. Alternatively, the second driving member 122 can also be selected as an electric push rod, a hydraulic telescopic rod, etc., which is not limited here, and those skilled in the art can make design adjustments according to actual conditions. The driving structure 13 may include a first driving member 131 rotatably connected to the mounting seat body 11. The first driving member 131 is used to drive the battery pack 2 to disengage from the mounting seat body 11 when the mating portion 21 of the battery pack 2 is unlocked from the mounting seat body 11.

[0031] The disengagement device 1 provided by the present disclosure can be installed at a set position of the vehicle so that the battery pack 2 can be installed on the vehicle through the disengagement device 1. The locking structure 12 of the disengagement device 1 can ensure that the battery pack 2 is stably connected to the disengagement device 1 for power supply when locked. In the event of an accident when the battery pack 2 catches fire, the locking structure 12 can be reliably unlocked and the battery pack 2 can be driven to disengage from the mounting seat 11 in time through the first drive member 131 to prevent the battery pack 2 from catching fire and causing further damage to the vehicle and personnel. The disengagement device 1 provided by the technical solution of the present disclosure is reliable to use.

[0032] In some embodiments, Figure 3 As shown, the locking structure 12 may further include an elastic member 123 and a limiting sleeve 124 sleeved on the outside of the elastic member 123. Figure 5 As shown, the elastic member 123 is disposed between the driving shaft 122a and the locking member 121, and the second driving member 122 is connected to the locking member 121 through the elastic member 123, so that when the locking structure 12 is in the locking position, the locking portion 121a of the locking member 121 can be held in the matching portion 21 of the battery pack 2. Figure 6 As shown, in the unlocked position, the locking member 121 can compress the elastic member 123 so that the locking portion 121a is disengaged from the mating portion 21 of the battery pack 2. For example, the elastic member 123 can be selected as a spring. Of course, the elastic member 123 can also be selected as other suitable materials, which is not limited here, and those skilled in the art can choose according to actual conditions. The provision of the elastic member 123 improves the reliability of the second driving member 122 driving the locking member 121 to move, and improves the reliability of the locking member 121 when locked. The provision of the limiting sleeve 124 can prevent the elastic member 123 from shaking, thereby improving the reliability of the use of the elastic member 123.

[0033] In some embodiments, Figure 3As shown, the locking structure 12 may also include a connector 125. The connector 125 is configured as a flexible member. For example, the connector 125 may be selected as a steel wire rope. Of course, the connector 125 may also be other materials with good strength and wear resistance, which is not limited here, and those skilled in the art may select according to actual conditions. The second drive member 122 is arranged on one side of the locking member 121 and can move along the first direction X. One end of the connector 125 is connected to the drive shaft 122a, and the other end passes through the side wall of the limiting sleeve 124 and is connected to the locking member 121, so that the second drive member 122 can convert its own movement along the first direction X into the movement of the locking member 121 along the second direction Y through the connector 125. Through the arrangement of the connector 125, the movement of the second drive member 122 along the first direction X can be converted into the movement along the second direction Y. Such an arrangement reduces the space occupied by the second drive member 122 in the first direction X, which is conducive to reducing the structural size of the entire disengagement device 1 in the first direction X, and the arrangement is reasonable and the integration is high.

[0034] In some embodiments, Figure 3 As shown, the locking structure 12 may further include an adapter plate 126. The adapter plate 126 is connected to the driving shaft 122a of the second driving member 122. Correspondingly, a mounting hole 124a for the connecting member 125 to pass through may be provided on the limiting sleeve 124. One end of the connecting member 125 is connected to the locking member 121, and the other end passes through the mounting hole 124a and is connected to the adapter plate 126. The mutual cooperation between the adapter plate 126 and the mounting hole 124a enables the connecting member 125 to move almost parallel to the first direction X, thereby avoiding wear of the connecting member 125 at the mounting hole 124a of the limiting sleeve 124 under long-term use, thereby extending the service life of the connecting member 125.

[0035] In some embodiments, Figure 4 As shown, the mounting seat body 11 may include a first mounting frame 111 and a second mounting frame 112 that are arranged opposite to each other. Both ends of the first driving member 131 are rotatably connected to the first mounting frame 111 and the second mounting frame 112, respectively, to drive the battery pack 2 to move along the first direction X. The arrangement of the first driving member 131 can achieve reliable driving of the battery pack 2, ensuring that the battery pack 2 can be reliably separated from the mounting seat body 11 when unlocked from the mounting seat body 11.

[0036] As a specific embodiment, the first driving member 131 may include a plurality of roller motors 131a arranged at intervals. Both ends of the plurality of roller motors 131a are respectively connected to the first mounting frame 111 and the second mounting frame 112. The roller motor 131a can drive the battery pack 2 to move along the first direction X by rotating itself. The roller motor 131a is selected as the first driving member 131 here mainly because of its compact structure, high transmission efficiency, low noise, stable operation, small space occupation, and easy installation.

[0037] Of course, it is understandable that the first driving member 131 may also include multiple rollers and a driving motor connected to the multiple rollers. The two ends of each roller are respectively connected to the first mounting frame 111 and the second mounting frame 112. When the driving motor is running, multiple rollers can be driven to rotate at the same time, and the multiple rollers can drive the battery pack 2 to separate from the mounting seat body 11 while rotating. The structural form of the first driving member 131 is not limited here, and those skilled in the art can make design adjustments according to actual conditions.

[0038] In some embodiments, Figure 3 and Figure 4 As shown, the first mounting frame 111 and the second mounting frame 112 are both provided with a first guide groove 113. The first guide groove 113 is used for the connection portion 22 of the battery pack 2 to be inserted, so as to guide the battery pack 2 to move along the first direction X under the drive of the first driving member 131. The provision of the first guide groove 113 enables the battery pack 2 to reliably move along the first direction X when unlocked from the mounting seat body 11, and the provision of the first guide groove 113 improves the reliability of the disengagement device 1.

[0039] According to a second aspect of the present disclosure, Figure 1 and Figure 3 As shown, a battery assembly 100 is provided. The battery assembly 100 may include a battery pack 2, a battery pack base 3 and a detachment device 1. The battery pack 2 is connected to the battery pack base 3. A connecting portion 22 is formed or provided on the battery pack base 3. The connecting portion 22 is used to be inserted into the first guide groove 113 to limit the movement of the battery pack 2 along the second direction Y. In this embodiment, the battery assembly 100 equipped with the above-mentioned detachment device 1 can have higher reliability in use. Furthermore, under the condition that the connecting portion 22 formed or provided on the battery pack base 3 is inserted into the first guide groove 113, on the one hand, the connection between the battery pack base 3 and the mounting seat 11 can be achieved, and on the other hand, the battery pack 2 can be guided to move reliably along the first direction X.

[0040] As a specific example, Figure 3As shown, the battery pack base 3 is provided with a connection portion 22, which is specifically implemented in the following manner: the battery assembly 100 may also include a clamping member 4. A second guide groove 31 is provided on the battery pack base 3. One end of the clamping member 4 is provided in the second guide groove 31, and the other end extends outward toward a side away from the battery pack base 3 to form the connection portion 22. The way in which the clamping member 4 forms the connection portion 22 can facilitate the connection between the battery pack base 3 and the mounting seat 11.

[0041] Of course, it is understandable that the battery pack base 3 can also be integrally formed with a mounting protrusion, which forms a connecting portion 22 to be inserted into the first guide groove 113. There is no limitation on the formation method of the connecting portion 22, and technicians in this field can make design adjustments based on actual conditions.

[0042] In some embodiments, Figure 3 As shown, the battery pack 2 also has a matching portion 21. The matching portion 21 is formed on the connecting portion 22 for unlockable matching with the locking portion 121a of the locking member 121. For example, the matching portion 21 can be designed as a groove formed on the connecting portion 22, and the locking portion 121a of the locking member 121 can be designed as a protrusion, and the connection between the matching portion 21 and the locking portion 121a is achieved by the mutual engagement of the groove and the protrusion. Of course, the locking portion 121a and the matching portion 21 can also be other mutually matching structural forms, which are not limited here, and those skilled in the art can make design adjustments according to actual conditions.

[0043] It is worth noting that in the technical solution provided by the present disclosure, the clamping member 4 can form a connecting portion 22 to realize the connection between the battery pack 2 body and the mounting seat 11, and can also form a matching portion 21 that matches the locking portion 121a on the clamping member 4. This design makes the entire battery assembly 100 compact, reasonable and reliable, and highly integrated. However, it should be understood that the connecting portion 22, matching portion 21, and locking portion 121a provided by the present disclosure can also be realized independently of each other, and no limitation is made here, and those skilled in the art can make adjustments according to actual conditions.

[0044] It is also worth noting that, in order to further improve the rationality of the arrangement of the various components in the battery assembly 100, the mounting seat 11 of the detachment device 1 and the battery pack base 3 provided in the first aspect of the present disclosure can be specifically constructed as follows:

[0045] The mounting base 11 may be a rectangular frame. The two opposite sides of the rectangular frame form the above-mentioned first mounting frame 111 and the second mounting frame 112. The first mounting frame 111 may include a first lower plate 111c, a first middle plate 111b and a first upper plate 111a arranged in sequence along the second direction Y. The first space formed between the first lower plate 111c and the first middle plate 111b is used to install the above-mentioned second driving member 122. The second space formed between the first middle plate 111b and the first upper plate 111a is the first guide groove 113. Correspondingly, the structural form of the second mounting frame 112 is the same as that of the first mounting frame 111, which will not be repeated here. Further, the battery pack base 3 may include a second upper plate 32 and a second lower plate 33 arranged in sequence along the second direction Y. The third space formed between the second upper plate 32 and the second lower plate 33 is the above-mentioned second guide groove 31, which is used for inserting one end of the clamping member 4 to achieve the connection between the clamping member 4 and the battery pack base 3. The other end of the clamping member 4 forms a connecting portion 22 , which can be inserted into the first guiding groove 113 .

[0046] According to a third aspect of the present disclosure, a vehicle is provided. The vehicle may include a battery assembly 100. A vehicle equipped with the battery assembly 100 can have a higher driving safety. When the battery pack 2 accidentally catches fire, the battery pack 2 can be unlocked in time by the locking structure 12, and further driven by the driving structure 13 to be separated from the mounting seat 11, that is, separated from the vehicle itself, to avoid further damage to the vehicle and personnel.

[0047] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0049] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A detachment device for a battery pack, characterized in that: include: Mounting seat; A locking structure, comprising a locking member having a locking portion and a second driving member connected to the mounting seat body, wherein the locking portion is used to be unlockably connected to the matching portion of the battery pack, and a driving shaft of the second driving member is connected to the locking member and can drive the locking member to reciprocate relative to the mounting seat body along a second direction to switch the locking position and the unlocking position of the locking member; and The driving structure includes a first driving member rotatably connected to the mounting seat body, wherein the first driving member is used to drive the battery pack to detach from the mounting seat body when the matching portion of the battery pack is unlocked from the mounting seat body.

2. The release device according to claim 1, characterized in that: The locking structure further includes an elastic member and a limiting sleeve sleeved on the outside of the elastic member, the elastic member is arranged between the driving shaft and the locking member, and the second driving member is connected to the locking member through the elastic member.

3. The release device according to claim 2, characterized in that: The locking structure also includes a connecting member, the second driving member is arranged on one side of the locking member and can move along the first direction, one end of the connecting member is connected to the driving shaft, and the other end passes through the side wall of the limiting sleeve and is connected to the locking member, so that the second driving member can convert its own movement along the first direction into movement of the locking member along the second direction through the connecting member.

4. The release device according to claim 1, characterized in that: The mounting seat body includes a first mounting frame and a second mounting frame that are arranged opposite to each other, and two ends of the first driving member are rotatably connected to the first mounting frame and the second mounting frame respectively to drive the battery pack to move along a first direction.

5. The release device according to claim 4, characterized in that: The first driving member includes a plurality of roller motors arranged at intervals, and both ends of the plurality of roller motors are respectively connected to the first mounting frame and the second mounting frame. The roller motors can drive the battery pack to move along the first direction by rotating themselves.

6. The release device according to claim 4, characterized in that: The first mounting frame and the second mounting frame are both provided with a first guide groove, and the first guide groove is used for inserting the connecting portion of the battery pack to guide the battery pack to move along the first direction under the drive of the first driving member.

7. A battery assembly, characterized in that: It includes a battery pack, a battery pack base and the detachment device described in any one of claims 1-6, the battery pack is connected to the battery pack base, a connecting portion is formed or provided on the battery pack base, and the connecting portion is used to be inserted into a first guide groove to limit the movement of the battery pack along the second direction.

8. The battery assembly according to claim 7, characterized in that: The battery assembly also includes a clamping member, a second guide groove is provided on the battery pack base, one end of the clamping member is provided in the second guide groove, and the other end extends outward toward a side away from the battery pack base to form the connecting portion.

9. The battery assembly according to claim 7, characterized in that: The battery pack further comprises a mating portion, which is formed on the connecting portion and is used for unlockably mating with a locking portion of a locking member.

10. A vehicle, characterized in that: A battery assembly comprising any one of claims 7 to 9.

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