Positioning seat, positioning pin, positioning mechanism, quick change holder parts and electric vehicle

Abstract

A positioning seat (1, 10), a positioning pin (2, 20), a positioning mechanism (3, 30), a quick change holder component (4, 10, 40), and an electric vehicle, wherein the positioning seat (1, 10) is for positioning and fixing a battery pack (51, 61), the positioning seat (1, 10) is for receiving a positioning pin (2, 20) that fixes the battery pack (51, 61), the positioning seat (1, 10) has an opening (12) and a slideway (11) extending from the opening (12) on its side, the opening (12) is for the positioning pin (2, 20) to enter the slideway (11), the slideway (11) is provided with a first position limiting portion (13), and the first position limiting portion (13) is for limiting the positioning pin (2, 20) from coming off the positioning seat (1, 10) in the axial direction. By installing the first position limiting portion 13 on the positioning seat 1, 10, the first position limiting portion 13 can be used to limit the movement direction of the positioning pin 2, 20, preventing the positioning pin 2, 20 from detaching from the positioning seat 1, 10 in its axial direction, thereby realizing the axial fixation of the battery pack 51, 61 using the positioning pin 2, 20. Limiting the movement direction of the battery pack 51, 61 reduces the complexity of the battery pack's movement, which helps extend the life of the battery pack 51, 61 and reduces the probability of damage to the battery pack 51, 61. At the same time, it also helps analyze the causes of malfunctions in the battery pack 51, 61.

Description

[Technical field]

[0001] This application claims priority from Chinese patent applications no. 201910569887.9, 201910568751.6, and 201910569923.1, all of which are filed on June 27, 2019. This application incorporates all of the above Chinese patent applications by reference.

[0002] The present invention relates to the field of battery exchange devices, and in particular to locating seats, locating pins, locating mechanisms, quick exchange holder parts and electric vehicles. [Background technology]

[0003] Conventionally, battery packs are attached to electric vehicles in two ways: fixed and replaceable.

[0004] Among them, fixed battery packs are fixed to the vehicle, and generally, the vehicle is used as the charging point when charging. When connecting a fixed battery pack to the vehicle body, it is usually positioned through pins and fixed with bolts. This positioning and fixing method has a good fixing effect, and basically can guarantee fixing in three directions, XYZ. However, when replacing the battery pack, various inconveniences arise, and it is difficult to freely remove the battery. At the same time, removing the bolts in multiple places increases the probability that the bolts will become ineffective, and there is a certain risk.

[0005] A replaceable battery pack is generally attached so as to be movable, and the battery pack can be removed and replaced with a new one at any time. Currently, when a conventional replaceable battery pack is connected to a vehicle body, a locking mechanism may be provided between the battery pack and the vehicle body. The locking mechanism generally includes a lock shaft and a lock receiver. Generally, the lock shaft is installed on one side of the battery pack, while the lock receiver is installed on one side of the vehicle body, and a slideway is provided in the lock receiver. The battery pack is generally attached from the bottom of the vehicle body. The lock shaft, accompanied by the battery pack, enters the slideway of the lock receiver from below, and the battery pack is then moved sufficiently along the X direction to attach the battery pack. This method of attaching the battery pack usually only involves unstably positioning the battery pack, and when the battery pack is unstably positioned, it is not fixed, so the lock shaft can move in three directions, XYZ, relative to the slideway. In this case, when the vehicle is running, the battery pack may make complex movements in three directions, XYZ, which results in a high failure rate of the battery pack and makes it difficult to determine the cause of the failure when it occurs. Also, when analyzing the forces received by the battery pack, the complex movements of the battery pack make it quite complicated to analyze the forces involved. Summary of the Invention [Problem to be solved by the invention]

[0006] For the above reasons, the current fixed battery pack connection configuration in electric vehicles makes it inconvenient to remove, and the replaceable battery pack connection configuration makes it impossible to fix the battery in the XYZ directions, making the battery pack prone to failure. [Means for solving the problem]

[0007] The technical problem to be solved by the present invention is to provide a positioning seat, a positioning pin, a positioning mechanism, a quick change holder part and an electric vehicle to overcome the deficiencies in the prior art.

[0008] The present invention solves the above technical problems based on the following technical means.

[0009] The present invention provides a positioning seat for positioning and fixing a battery pack, the positioning seat is for receiving a positioning pin for fixing the battery pack, the positioning seat has an opening and a slideway extending from the opening on a side surface, the opening is for the positioning pin to enter the slideway, and a first position limiting portion is provided within the slideway to prevent the positioning pin from coming off the positioning seat along the axial direction.

[0010] In this means, by adopting the above configuration, the first position limiting part is used to limit the moving direction of the positioning pin, so that the positioning pin cannot be detached from the positioning seat along its axial direction, and thus the battery pack using the positioning pin can be fixed in the axial direction. This means can suppress the movement of the battery pack, reduce the complexity of the state in which the battery pack can move, help extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it is useful for analyzing the cause of the failure of the battery pack.

[0011] Preferably, the slideway has a support platform for supporting the positioning pin, and the first position limiting portion is provided on the support platform. By adopting the above configuration, the support platform is used to support the positioning pin, making the positioning pin more solid.

[0012] Preferably, the first position limiting portion has a cross section that is one of an arc shape, a V shape, and a trapezoid shape. In this means, by adopting the above configuration, designing the cross section of the first position limiting portion to be one of an arc shape, a V shape, and a trapezoid shape helps to realize the function of limiting the position based on the positioning seat, and simplifies the configuration of the first position limiting portion, thereby extending the life of the positioning seat.

[0013] Preferably, the first position limiting portion is a protrusion or a recess, Preferably, the convex portion has a first position limiting surface and a second position limiting surface, the intersection of the first position limiting surface and the second position limiting surface is the highest point of the convex portion, and / or the first position limiting surface and the second position limiting surface are flat or curved.

[0014] In this means, by adopting the above configuration, designing the first position limiting portion as a protruding portion or a recessed portion helps to realize the function of limiting the position based on the positioning seat, and the form of the first position limiting portion can be simplified to extend the usable life of the positioning seat. In this means, by adopting the above configuration, designing the protruding portion as the first position limiting surface and the second position limiting surface can simplify the form of the protruding portion and make the space occupied relatively small. In addition, the highest point of the protruding portion helps to increase the reliability of positioning. In this means, by adopting the above configuration, the first position limiting surface and the second position limiting surface can be configured using a flat surface or a curved surface, and the form of the first position limiting surface and the second position limiting surface can be simplified.

[0015] Preferably, the positioning seat further includes a buffer portion, at least a portion of which is located within the slideway, and the buffer portion abuts against a wall surface of the positioning pin when the positioning seat is in the positioning state. Preferably, the buffer portion is an elastic cushion.

[0016] In this means, by adopting the above configuration, if the buffer part absorbs part of the kinetic energy when the positioning pin is converted into the positioning state, it helps to reduce the collision of the positioning pin with the positioning seat, reduce the noise when the positioning pin is positioned, and increase the firmness when the positioning pin is in the positioned state. In this means, by adopting the above configuration, if the elastic cushion is used as the buffer part, it is possible to reduce the cost of the buffer part and increase the buffering effect by the buffer part.

[0017] The positioning seat is for positioning and fixing the battery pack. The positioning seat includes a positioning seat body, the positioning seat body is provided with an opening and a slideway extending from the opening on a side thereof, the opening is for a positioning pin of the battery pack to enter the slideway, and the positioning seat further includes a clamping device, the clamping device is installed in the slideway, and when the positioning pin is located at a positioning point, the clamping device abuts against the positioning pin along a vertical direction.

[0018] In this means, by adopting the above configuration, the clamping device is installed in the slideway to firmly hold the positioning pin located at the positioning point, and thus the positioning pin cannot move along the vertical direction, and the positioning pin can be fixed in the vertical direction, and the positioning mechanism using the positioning seat, the quick exchange holder part, and the battery pack of the electric vehicle can be positioned and fixed in the vertical direction. In this means, the movement of the battery pack is suppressed, and the complexity of the state in which the battery pack can move is reduced, which is helpful in extending the life of the battery pack and reducing the probability of the battery pack being destroyed. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0019] Preferably, the clamping device is provided at the positioning point of the positioning pin in the slideway. By adopting the above configuration, the clamping device can be provided at the positioning point to more firmly position the positioning pin at the positioning point, and the probability of the positioning pin moving unexpectedly when it is positioned at the positioning point can be reduced.

[0020] Preferably, the tightening device includes a swinging body and a fixed shaft, the fixed shaft is connected to the positioning seat body, the swinging body is rotatable around the fixed shaft, and when the positioning pin is located at the positioning point, the swinging body is abutted against an outer wall of the positioning pin; Preferably, the rocking body has an arc surface that is brought into contact with an outer wall of the positioning pin, and / or When the positioning pin does not enter the slideway, the rocker is rocked to the entrance of the slideway, and / or The clamping device includes two clamping parts, each of which includes the rocker and the fixed shaft, and the two clamping parts are symmetrically installed on both sides of the slideway; Preferably, when the positioning pin is located at the positioning point, the center line of the positioning pin and the center lines of the two fixed shafts are in the same plane, Preferably, the fastening device further includes an elastic portion, the elastic portion being installed between the positioning seat body and the rocking body, and acting on the rocking body such that the contact surface of the rocking body faces the direction in which the positioning pin slides in when no force is applied to the rocking body; Preferably, one end of the elastic portion is inserted into the rocking body, and the other end is abutted against the positioning seat body, and / or The elastic portion is a spring.

[0021] In this means, by adopting the above configuration, a tightening device can be easily constructed using a oscillating body and a fixed shaft, and because the oscillating body can be rotated around the fixed shaft, the oscillating body can be more easily switched to the positioning state and the robustness of the positioning pin at the positioning point can be increased.

[0022] In this means, by adopting the above configuration, the arc surface of the rocking body abuts against the positioning pin, thereby increasing the firmness of the positioning pin at the positioning point. In this means, by adopting the above configuration, the rocking body is swung to the entrance, making it easier for the positioning pin to enter the rocking body, and also increasing the firmness of the positioning pin at the rocking body. In this means, by adopting the above configuration, when symmetrically installed clamping parts are used, when the positioning pin is located at the positioning point, the two clamping parts can clamp the positioning pin at the same time, thereby increasing the firmness of the positioning seat.

[0023] By adopting the above configuration, this means is designed so that the center line of the positioning pin and the center lines of the two fixed shafts are on the same plane, and when the positioning pin is located at the positioning point, the distance between the positioning pin and the two fixed shafts is minimized, and the positioning pin can be more firmly clamped by the two swinging bodies, at which time the force received in the axial direction by the positioning pin is maximized, making it difficult for the positioning pin to leave the positioning point and increasing the firmness of the positioning seat. By adopting the above configuration, this means uses the elastic part to direct the swing in the direction in which the positioning pin slides in, which helps the positioning pin to slide smoothly into the swinging bodies and ultimately helps the clamping device to clamp the positioning pin.

[0024] In this means, by adopting the above-mentioned configuration, when the elastic part is inserted into the rocker and the positioning seat body, the stability of the elastic part is increased, and the elastic part acts on the rocker instead. In this means, by adopting the above-mentioned configuration, the design form of the elastic part using a spring can be simplified, the life of the elastic part can be extended, and the cost of using the positioning seat can be reduced.

[0025] Preferably, the positioning seat further includes a buffer portion, at least a portion of which is located within the slideway, and when the positioning pin is located at the positioning point, the buffer portion abuts against a wall surface of the positioning pin, and preferably, the buffer portion is an elastic cushion.

[0026] In this means, by adopting the above configuration, if the buffer part absorbs part of the kinetic energy when the positioning pin is converted into the positioning state, it helps to reduce the collision of the positioning pin with the positioning seat, reduce the noise when the positioning pin is positioned, and increase the firmness when the positioning pin is in the positioned state. In this means, by adopting the above configuration, if the elastic cushion is used as the buffer part, it is possible to reduce the cost of the buffer part and increase the buffer effect by the buffer part.

[0027] The positioning pin connected to the battery pack is intended to engage with the positioning seat described in at least one of the above claims, and the positioning pin is provided with a second position limiting portion that engages with the first position limiting portion to restrict the battery pack from moving along the axial direction of the positioning pin.

[0028] In this means, by adopting the above configuration, the second position limiting portion is used to engage with the first position limiting portion, and the firmness of the positioning pin when it is positioned in the positioning state can be increased, and the positioning pin can be fixed in its axial direction, and thus the battery pack using the positioning pin can be fixed in the axial direction. This means restricts the direction of movement of the battery pack, reduces the complexity of the state in which the battery pack can move, helps to extend the life of the battery pack, and reduces the probability of the battery pack being destroyed. At the same time, it is useful for analyzing the cause of failure in the battery pack.

[0029] Preferably, the first position limiting portion is a recessed portion, the second position limiting portion is a protruding portion and is multiple in number, and the multiple protruding portions are distributed along the axial direction of the positioning pin or distributed in the radial direction of the positioning pin.

[0030] In this means, by adopting the above configuration, the protrusion and the recess engage with each other, so that the firmness of the positioning pin when it is positioned can be increased. At the same time, by providing multiple protrusions on the positioning pin, the positioning pin is made more firm and is difficult to separate from the positioning seat along its axial direction. In addition, the problem of a single protrusion losing its effect and changing the positioning state is solved, and the safety factor of the positioning pin can be increased.

[0031] Preferably, the second position limiting portion and the positioning pin are integrally configured, or the second position limiting portion is detachably connected to the positioning pin, and preferably, the second position limiting portion is provided around the positioning pin, Preferably, the second position limiting portion is rotatable relative to the positioning pin; and / or The positioning pin further includes an axial interference portion installed on an end face of the positioning pin, the axial interference portion being configured to prevent the second position limiting portion from moving along the axial direction of the positioning pin, and / or the second position limiting portion being a shaft sleeve that fits snugly into the slideway.

[0032] In this means, by adopting the above configuration, the second position limiting portion and the positioning pin are designed to be integrally configured, the process of manufacturing the positioning pin is simplified, and the cost of the positioning pin can be reduced. By designing the form of connection between the second position limiting portion and the positioning pin to be detachable, the second position limiting portion and the positioning pin can be designed and manufactured separately, and the performance of both can be further matched to their respective usage environments, which helps to improve the quality of the positioning pin.

[0033] By adopting the above configuration, the present invention provides a second position limiting portion around the outside of the positioning pin, which allows the second position limiting portion to fit more fully with the first position limiting portion, thereby increasing the firmness with which the positioning pin is positioned. By adopting the above configuration, the present invention provides a second position limiting portion that is rotatable, which reduces the resistance force of the positioning pin entering the slideway and helps to extend the life of the positioning pin.

[0034] By adopting the above configuration, the present invention can prevent the second position limiting portion from moving in the axial direction using the axial interference portion, thereby increasing the safety factor of the locating pin. By adopting the above configuration, the present invention can further strengthen the locating pin and the locating seat using the slideway and the snug-fit shaft sleeve, thereby reducing unexpected movement of the locating pin.

[0035] The positioning mechanism for positioning and fixing the battery pack includes a positioning seat as described above and a positioning pin as described above, the positioning pin being mounted on the pack, and the positioning mechanism is for restricting the battery pack from detaching from the positioning seat along the axial direction of the positioning pin, or the positioning mechanism includes a positioning pin and a positioning seat as described above, the positioning pin being mounted on the battery pack, and the positioning pin entering the slideway through the opening.

[0036] In this means, by adopting the above configuration, the first position limiting portion of the positioning seat and the second position limiting portion of the positioning pin engage with each other, thereby restricting the movement direction of the positioning pin and preventing the positioning pin from detaching from the positioning seat in its axial direction, thereby making it possible to fix the battery pack using the positioning pin in the axial direction.

[0037] This means can restrict the direction of movement of the battery pack, reduce the complexity of the states in which the battery pack can move, and help extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it is useful for analyzing the cause of a malfunction occurring in the battery pack. By adopting the above configuration, this means can fix the positioning pin in the vertical direction using a tightening device, and the battery pack using the positioning pin can be fixed in the vertical direction. This means can restrict the direction of movement of the battery pack, reduce the complexity of the states in which the battery pack can move, and help extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it is useful for analyzing the cause of a malfunction occurring in the battery pack.

[0038] The quick change holder part for mounting the battery pack includes a quick change holder, the quick change holder part further includes the positioning mechanism described above, and the positioning seat is provided on the quick change holder.

[0039] In this means, by adopting the above configuration, the quick change holder part including the positioning seat prevents the battery pack located in the quick change holder part from being detached from the quick change holder along the axial direction of the positioning pin, and the battery pack using the quick change holder part can be fixed in the axial direction. This means can restrict the direction of movement of the battery pack, reduce the complexity of the state in which the battery pack can move, help to extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it can be useful for analyzing the cause of the failure of the battery pack.

[0040] In this means, by adopting the above configuration, the quick change holder including the positioning seat is used to prevent the battery pack located in the quick change holder part from being detached from the quick change holder along the height direction, and thus the battery pack using the quick change holder part can be fixed in the height direction. This means can suppress the movement of the battery pack, reduce the complexity of the state in which the battery pack can move, help to extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it is also useful for analyzing the cause of the failure of the battery pack.

[0041] The quick change holder components for mounting a battery pack to an electric vehicle include a quick change holder, a locking mechanism and a positioning mechanism, the locking mechanism and the positioning mechanism being respectively installed on the quick change holder, the locking mechanism being for locking the battery pack to the electric vehicle and for restricting the battery pack from moving along the direction in which the electric vehicle travels, and the positioning mechanism being for restricting the battery pack to moving along a direction perpendicular to the direction of travel in a horizontal plane and / or for restricting the battery pack from moving along the vertical direction.

[0042] By adopting the above configuration, the present invention can fix the battery pack in the direction of the electric vehicle, the axial direction of the slide pin, and the vertical direction by installing the slideway positioning mechanism and the double pendulum positioning mechanism on the quick change holder part. This method can restrain the movement of the battery pack, reduce the complexity of the state in which the battery pack can move, help to extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it can help to analyze the cause of the failure of the battery pack.

[0043] Preferably, the positioning mechanism includes a slide positioning mechanism for restricting movement of the battery pack in a horizontal plane in a direction perpendicular to the direction of travel.

[0044] Preferably, the slide positioning mechanism includes a slide seat connected to the quick change holder for mating with a slide pin on the battery pack; The slideway seat has an opening and a slideway extending from the opening on a side surface, the opening being for the slideway pin to enter the slideway, a first position limiting portion is provided on the slideway of the slideway seat, and a second position limiting portion is provided on the slideway pin, and the second position limiting portion is engaged with the first position limiting portion to limit the movement of the battery pack along the axial direction of the slideway pin; Preferably, the slideway seat is installed on the left or right side of the quick change holder, and / or the first position limiting portion is a protrusion or a recess, and / or the first position limiting portion is a recess and the second position limiting portion is a protrusion and is multiple in number, and the multiple protrusions are distributed along the axial direction of the slideway pin or distributed in the radial direction of the slideway pin.

[0045] In this means, by adopting the above configuration, the first position limiting part is used in the slideway positioning mechanism to limit the movement direction of the slideway pin, so that the slideway pin will not come off from the slideway seat along its axial direction, and thus the battery pack using the slideway pin can be fixed in the axial direction. This means can limit the movement of the battery pack, reduce the complexity of the state in which the battery pack can move, help extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it can help analyze the cause of the failure of the battery pack.

[0046] In this means, by adopting the above configuration, the slide positioning mechanism is installed on the left or right side of the quick exchange holder, and the slide pin can be fixed axially along the battery pack, and the problem that simultaneous positioning on both sides of the slide pin in the axial direction makes the installation of the battery pack complicated and increases the requirement for positioning accuracy can be solved. In this means, by adopting the above configuration, the first position limiting portion is designed as a protruding portion or a recessed portion, and the function of limiting the position using the slide seat can be realized, and the configuration of the first position limiting portion can be simplified, thereby extending the service life of the slide seat.

[0047] In this means, by adopting the above configuration, the protrusion and the recess are engaged with each other, so that the firmness of the slide pin when it is positioned in the positioning state can be increased. At the same time, by providing multiple protrusions on the slide pin, the slide pin can be made more firm, and it is difficult for the slide pin to separate from the slide seat along its axial direction. In addition, the problem of the positioning state changing due to the loss of effect of a single protrusion can be solved, and the safety factor of the positioning pin can be increased.

[0048] Preferably, the positioning mechanism includes a double pendulum positioning mechanism for restricting movement of the battery pack along a vertical direction; Preferably, the double pendulum positioning mechanism is symmetrically installed on one or both of the left and right sides of the quick change holder; and / or The double pendulum positioning mechanism includes a double pendulum seat and a double pendulum pin, the double pendulum seat is connected to the quick change holder, and the double pendulum pins are respectively connected to the battery pack; The double pendulum seat has an opening and a slideway extending from the opening on a side surface, the opening being for allowing the double pendulum pin to enter the slideway, The double pendulum base further includes a clamping device that is installed in the slideway and abuts against the double pendulum pin along a vertical direction when the double pendulum pin is located at a positioning point, thereby restricting the battery pack from moving along the vertical direction.

[0049] In this means, by adopting the above configuration, the double pendulum positioning mechanism can be used to restrict the battery pack from moving vertically, simplifying the configuration of the quick change holder parts, suppressing the movement of the battery pack, reducing the complexity of the states in which the battery pack can move, helping to extend the life of the battery pack, and reducing the probability of the battery pack being destroyed.

[0050] In this means, by adopting the above configuration, the double pendulum positioning mechanism is installed on one side of the quick change holder, thereby restricting the battery pack from moving in the vertical direction, and by installing the double pendulum positioning mechanism on both sides of the quick change holder, the robustness of the battery pack can be increased.

[0051] In this means, by adopting the above configuration, the clamping device is installed in the slideway to firmly hold the double pendulum pin located at the positioning point, so that the double pendulum pin cannot move vertically and can be fixed vertically, and the positioning mechanism, the quick exchange holder part, and the battery pack of the electric vehicle using the double pendulum seat can be positioned and fixed vertically. This means can suppress the movement of the battery pack and reduce the complexity of the state in which the battery pack can move, which is helpful in extending the life of the battery pack and reducing the probability of the battery pack being destroyed. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0052] Preferably, the clamping device is provided at a positioning point of the double pendulum pin in the slideway, the clamping device includes a rocker and a fixed shaft, the fixed shaft is connected to the main body of the double pendulum seat, the rocker is rotatable around the fixed shaft, and when the double pendulum pin is located at the positioning point, the rocker is in contact with the outer wall of the double pendulum pin; Preferably, the clamping device includes two clamping parts, each of which includes the rocker and the fixed shaft, and the two clamping parts are symmetrically installed on both sides of the slideway; Preferably, when the double pendulum pin is located at the positioning point, the center line of the double pendulum pin and the center lines of the two fixed shafts are in the same plane, and / or The tightening device further includes an elastic part that is installed between the double pendulum base body and the oscillator and acts on the oscillator so that the contact surface of the oscillator faces the direction in which the double pendulum pin slides when no force is applied to the oscillator, and one end of the elastic part is inserted into the oscillator and the other end is in contact with the double pendulum base body.

[0053] In this means, by adopting the above configuration, the clamping device is installed at the positioning point, so that the double pendulum pin can be more firmly positioned at the positioning point and the probability of the double pendulum pin moving unexpectedly when it is at the positioning point can be reduced. The configuration of the clamping device is simplified using the oscillator and the fixed shaft, and the oscillator can be rotated around the fixed shaft, so that the oscillator can be more easily switched to the positioning state and the firmness with which the double pendulum pin is located at the positioning point can be increased. In this means, by adopting the above configuration, when the double pendulum pin is located at the positioning point, the double pendulum pin can be simultaneously clamped by the two clamping parts installed symmetrically, so that the firmness of the double pendulum pin can be increased.

[0054] By adopting the above configuration, this means is designed so that the center line of the double pendulum pin and the center lines of the two fixed shafts are on the same plane. When the double pendulum pin is located at the positioning point, the distance between the double pendulum pin and the two fixed shafts is minimized, and the double pendulum pin is more firmly clamped by the two oscillators. At this time, the force received by the double pendulum pin in the axial direction is maximized, making it difficult for the double pendulum pin to move away from the positioning point, and increasing the robustness of the double pendulum pin.

[0055] In this means, by adopting the above configuration, the elastic part is used to orient the oscillation in the direction in which the double pendulum pin slides, which helps the double pendulum pin to slide smoothly into the oscillator, and in turn helps the tightening device to tighten the double pendulum pin. By inserting the elastic part into the oscillator and the main body of the double pendulum base, the stability of the elastic part is increased, and the elastic part helps to apply elastic force to the oscillator instead.

[0056] The electric vehicle includes a battery pack and a quick change holder component according to at least one of the preceding claims.

[0057] By adopting the above configuration, the present invention can use the quick change holder part to fix the battery pack of the electric vehicle in the axial direction of the positioning pin. This method can restrict the movement direction of the battery pack, reduce the complexity of the battery pack's movable state, help extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it can help analyze the cause of the battery pack's failure.

[0058] By adopting the above configuration, the present invention can fix the battery pack of the electric vehicle in the height direction by using the quick change holder part. The present invention can restrict the movement direction of the battery pack, reduce the complexity of the battery pack's movable state, help extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it can help analyze the cause of the battery pack's failure.

[0059] By adopting the above configuration, the battery pack of the electric vehicle can be fixed vertically and in the axial direction of the slide pin by using the quick change holder part. This can restrict the movement direction of the battery pack, reduce the complexity of the battery pack's movement, help to extend the life of the battery pack, and reduce the probability of the battery pack being destroyed. At the same time, it can help to analyze the cause of the failure of the battery pack. Effect of the Invention

[0060] Based on satisfying common knowledge in this field, each of the above-mentioned preferable conditions can be arbitrarily combined to obtain each of the preferable embodiments of the present invention. In the present invention, a first position limiting part is provided on the positioning seat, and the first position limiting part is used to limit the moving direction of the positioning pin, so that the positioning pin cannot be detached from the positioning seat along its axial direction, and the battery pack using the positioning pin can be fixed in the axial direction. In the present invention, the moving direction of the battery pack is restricted, the complexity of the state in which the battery pack can move is reduced, which is helpful in extending the life of the battery pack, and the probability of the battery pack being destroyed is reduced. At the same time, it is helpful in analyzing the cause of the failure of the battery pack. [Brief description of the drawings]

[0061] [Figure 1] 2 is a schematic diagram of a configuration of a positioning seat according to the first embodiment of the present invention. FIG. [Diagram 2] 6 is a schematic diagram of another configuration of the positioning seat according to the first embodiment of the present invention. FIG. [Diagram 3] 2 is a schematic diagram of the configuration of the AA cross section of the positioning seat according to the first embodiment of the present invention; FIG. [Figure 4] 4 is a schematic diagram of a configuration including an elastic cushion in the positioning seat according to the first embodiment of the present invention. FIG. [Diagram 5] 11 is a schematic diagram of a configuration of a positioning pin according to a second embodiment of the present invention. FIG. [Figure 6] FIG. 11 is a schematic diagram of a cross-sectional configuration of a positioning pin according to a second embodiment of the present invention. [Figure 7] FIG. 11 is a schematic diagram of a configuration of a positioning mechanism according to a third embodiment of the present invention. [Figure 8] FIG. 11 is a schematic diagram of a cross-sectional configuration of a positioning mechanism according to Example 3 of the present invention. [Figure 9] FIG. 11 is a schematic diagram of the configuration of a quick exchange holder part according to Example 4 of the present invention. [Figure 10] FIG. 11 is a schematic diagram showing the configuration of a battery pack component of an electric vehicle according to a fifth embodiment of the present invention. [Figure 11] 13 is a schematic diagram of a configuration of a positioning seat according to Example 6 of the present invention. FIG. [Figure 12] 13 is a schematic diagram of another configuration of the positioning seat according to the sixth embodiment of the present invention. FIG. [Figure 13] FIG. 13 is a schematic diagram of a configuration of a positioning mechanism according to Example 7 of the present invention. [Figure 14] FIG. 13 is a schematic diagram of a cross-sectional configuration of a positioning mechanism according to Example 7 of the present invention. [Figure 15] 13 is a schematic diagram of another cross-sectional configuration of the positioning mechanism according to Example 7 of the present invention. FIG. [Figure 16] FIG. 13 is a schematic diagram of a positioning pin configuration of a positioning mechanism according to Example 7 of the present invention. [Figure 17] FIG. 13 is a schematic diagram of the configuration of a quick exchange holder part according to Example 8 of the present invention. [Figure 18] FIG. 13 is a schematic diagram showing the configuration of a battery pack component of an electric vehicle according to a ninth embodiment of the present invention. [Figure 19] FIG. 16 is a schematic diagram of the configuration of a quick exchange holder part according to Example 10 of the present invention. [Figure 20] FIG. 16 is a schematic diagram of the configuration of the slideway and positioning mechanism in the quick change holder part of Example 10 of the present invention. [Figure 21] FIG. 19 is a schematic diagram of the configuration of a double pendulum positioning mechanism in a quick change holder part according to Example 10 of the present invention. [Figure 22] FIG. 15 is a schematic diagram showing the configuration of a battery pack component of an electric vehicle according to an eleventh embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0062] The present invention will be described in detail below based on examples, but the present invention is not limited to the scope of the above examples.

[0063] <Example 1> As shown in Figures 1 to 4, the positioning seat 1 according to this embodiment is for positioning and fixing a battery pack. The positioning seat 1 is for receiving a positioning pin for fixing the battery pack. The positioning seat 1 is provided with an opening 12 and a slideway 11 extending from the opening 12 on its side. The opening 12 is for the positioning pin to enter the slideway 11, and the slideway 11 is provided with a first position limiting portion for restricting the positioning pin from coming off the positioning seat 1 along the axial direction.

[0064] In this embodiment, the first position limiting part can be used to limit the moving direction of the positioning pin, so that the positioning pin 2 cannot be detached from the positioning seat 1 in its axial direction, and the battery pack using the positioning pin can be fixed in the axial direction. In this embodiment, the moving direction of the battery pack is restricted, the complexity of the state in which the battery pack can move is reduced, which is helpful in extending the life of the battery pack, and the probability of the battery pack being destroyed is reduced. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0065] 2, in this embodiment, the slideway 11 has a support platform 111 for supporting the positioning pin, and the first position limiting portion is provided on the support platform 111. In this embodiment, the support platform 111 can be used to support the positioning pin, making the positioning pin more stable. Of course, in other embodiments, the support platform 111 may be designed in other ways.

[0066] In this embodiment, the first position limiting portion is designed as a recessed portion 13, and the recessed portion 13 has a first position limiting surface 131 and a second position limiting surface 132, and the intersection of the first position limiting surface 131 and the second position limiting surface 132 is the lowest point of the recessed portion. In this embodiment, the recessed portion 13 is designed as a first position limiting surface 131 and a second position limiting surface 132, which simplifies the configuration of the recessed portion 13 and helps to improve the function of position limiting by the recessed portion 13. In this embodiment, the first position limiting surface 131 and the second position limiting surface 132 are approximately flat surfaces, and a circular arc transition is used at the intersection between the two. This helps to extend the life of the first position limiting portion by avoiding sharp objects. In other embodiments, the first position limiting surface 131 and the second position limiting surface 132 may be designed as other shapes, for example, curved surfaces. Of course, the first position limiting portion may be designed as a protruding portion similar to the recessed portion 13.

[0067] In another embodiment, the cross section of the first position limiting part may be one of an arc shape, a V shape, or a trapezoid. In this embodiment, the cross section of the first position limiting part is designed to be one of an arc shape, a V shape, or a trapezoid, which helps to realize the function of limiting the position by the positioning seat 1, and simplifies the configuration of the first position limiting part, which helps to extend the service life of the positioning seat 1.

[0068] As shown in FIG. 4, the positioning seat 1 further includes a buffer part, at least a part of which is located in the slideway 11, and the buffer part abuts against the wall surface of the positioning pin when the positioning seat 1 is in the positioning state. In this embodiment, the buffer part absorbs the kinetic energy when the positioning pin is converted into the positioning state, which helps to reduce the collision of the positioning pin with the positioning seat 1, reduces the noise when the positioning pin is positioned, and helps to increase the firmness when the positioning pin is in the positioning state. Specifically, in this embodiment, the buffer part is an elastic cushion 14. By adopting the above configuration in this embodiment, the elastic cushion 14 is used as the buffer part, which can reduce the cost of the buffer part and increase the buffering effect of the buffer part. The elastic cushion 14 may be selected as the material of the elastic cushion 14, but of course, other materials may be selected for the elastic cushion 14. The buffer part may be selected in other forms.

[0069] <Example 2> As shown in FIG. 5 and FIG. 6, the positioning pin 2 according to this embodiment is connected to the battery pack and is intended to be fitted into the positioning seat 1. The positioning pin 2 is provided with a second position limiting portion, which is fitted into the first position limiting portion to restrict the battery pack from moving along the axial direction of the positioning pin 2. In this embodiment, the second position limiting portion and the first position limiting portion are fitted together to increase the firmness of the positioning pin 2 when it is positioned in the positioning state, and the positioning pin 2 can be fixed in its axial direction, and thus the battery pack using the positioning pin 2 can be fixed in the axial direction. In this embodiment, the movement direction of the battery pack is suppressed, the complexity of the state in which the battery pack can move is reduced, and the life of the battery pack is extended, and the probability of the battery pack being destroyed can be reduced. At the same time, it is useful for analyzing the cause of failure in the battery pack.

[0070] In this embodiment, the locating pin 2 includes a pin seat 21, a pin shaft 22, a shaft sleeve 23, and a shaft interference portion 24. The second position limiting portion is the shaft sleeve 23. The shaft sleeve 23 and the slideway 11 may be designed to have a snug fit. Using the shaft sleeve 23 that snugly fits with the slideway 11, the locating pin 2 can be made more rigid with respect to the locating seat 1 and can prevent the locating pin 2 from moving unexpectedly.

[0071] 6, a shaft sleeve 23 is provided around the pin shaft 22. By providing the shaft sleeve 23 around the outside of the positioning pin 2, the shaft sleeve 23 can be more fully fitted into the first position limiting portion of the positioning seat 1, which helps to increase the firmness with which the positioning pin 2 is positioned in the positioned state.

[0072] In this embodiment, the shaft sleeve 23 is rotatable with respect to the pin shaft 22. By designing the shaft sleeve 23 to be rotatable, the resistance force when the positioning pin 2 enters the slideway 11 can be reduced, which helps to extend the service life of the positioning pin 2. In addition, by designing the shaft sleeve 23 and the pin shaft 22 to be detachably connected, the shaft sleeve 23 and the pin shaft 22 can be designed and manufactured separately, and the performance of the two can be more closely matched to the respective usage environments, which helps to improve the quality of the positioning pin 2.

[0073] 6, the positioning pin 2 further includes an axial interference portion 24, which is provided on an end face of the positioning pin 2 and serves to prevent the second position limiting portion from moving along the axial direction of the positioning pin 2. By using the axial interference portion 24 to prevent the second position limiting portion from moving in the axial direction, the safety factor of the positioning pin 2 can be increased.

[0074] In another embodiment, the second position limiting portion may be integrally configured with the positioning pin 2. By designing the second position limiting portion and the positioning pin 2 to be integrally configured, the process for manufacturing the positioning pin 2 can be reduced, and the cost of the positioning pin 2 can be reduced.

[0075] In this embodiment, the second position limiting portion is designed on the shaft sleeve 23 to be outwardly convex, but in other embodiments, the second position limiting portion may be designed in other shapes, such as an inwardly concave shape or a wavy shape.

[0076] In order to further increase the safety factor of the positioning pin 2, the second position limiting portion may be a convex portion of another form, and the number of the second position limiting portions may be multiple, and the multiple convex portions may be distributed in the axial direction of the positioning pin 2, or the multiple convex portions may be distributed in the radial direction of the positioning pin 2. In this embodiment, the convex portion and the recessed portion 13 of the positioning seat 1 engage with each other, thereby increasing the firmness of the positioning pin 2 in the positioned state. At the same time, the positioning pin 2 may be provided with multiple convex portions to make the positioning pin 2 more firm and prevent it from moving away from its axial position in the positioning seat 1. In addition, the problem that the positioning state changes due to the loss of the effect of a single convex portion can be solved, and the safety factor of the positioning pin 2 can be increased.

[0077] <Example 3> As shown in FIG. 7 and FIG. 8, the positioning mechanism 3 according to this embodiment is for positioning and fixing the battery pack. The positioning mechanism 3 includes the positioning seat 1 according to the embodiment 1 and the positioning pin 2 according to the embodiment 2, the positioning pin 2 is installed on the battery pack, and the positioning mechanism 3 is for restricting the positioning pin 2 from being detached from the positioning seat 1 along the axial direction along the battery pack. In this embodiment, the first position limiting portion of the positioning seat 1 and the second position limiting portion of the positioning pin 2 are fitted together, so that the moving direction of the positioning pin 2 can be restricted, and the positioning pin 2 cannot be detached from the positioning seat 1 along its axial direction, and thus the battery pack using the positioning pin 2 can be fixed in the axial direction. In this embodiment, the movement direction of the battery pack is restricted, and the complexity of the state in which the battery pack can move is reduced, which is helpful in extending the life of the battery pack and reducing the probability of the battery pack being destroyed. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0078] <Example 4> As shown in FIG. 9, the quick change holder part 4 of this embodiment is for mounting a battery pack, and the quick change holder part 4 includes a quick change holder 41 and further includes a positioning seat 1 of a positioning mechanism 3, and the positioning seat 1 is provided on the quick change holder 41. The positioning seat 1 is provided on one side of the quick change holder 41. In this embodiment, the quick change holder part 4 including the positioning seat 1 is used to prevent the battery pack located on the quick change holder part 4 from being detached from the quick change holder 41 along the axial direction of the positioning pin 2, and thus the battery pack using the quick change holder part 4 can be fixed in the axial direction. In this embodiment, the movement direction of the battery pack is restricted, and the complexity of the state in which the battery pack can move is reduced, which is helpful in extending the life of the battery pack and reducing the probability of the battery pack being destroyed. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0079] <Example 5> This embodiment is an electric vehicle, and what is shown in Fig. 10 is a battery pack component 5 of the electric vehicle. The electric vehicle according to this embodiment includes the battery pack component 5 and the quick exchange holder component 4 according to the fourth embodiment.

[0080] In this embodiment, by adopting the above configuration, the battery pack 51 of the electric vehicle can be fixed in the axial direction of the positioning pin 2 using the quick exchange holder part 4. In this embodiment, the movement direction of the battery pack 51 is restricted, the complexity of the state in which the battery pack 51 can move is reduced, which helps to extend the life of the battery pack 51 and reduces the probability of the battery pack 51 being destroyed. At the same time, it is also useful for analyzing the cause of the failure of the battery pack 51.

[0081] <Example 6> As shown in Figures 11 and 12, the positioning seat 10 of this embodiment is for positioning and fixing the battery pack. The positioning seat 10 includes a positioning seat body 101, which has an opening 12 and a slideway 11 extending from the opening 12 on its side. The opening 12 is for the positioning pin of the battery pack to enter the slideway 11. The positioning seat 10 further includes a clamping device 13 installed in the slideway 11. When the positioning pin is located at the positioning point, the clamping device 13 abuts against the positioning pin along the vertical direction. In this embodiment, the clamping device 13 is installed in the slideway 11 to firmly hold the positioning pin located at the positioning point, so that the positioning pin cannot move along the vertical direction, and thus the positioning pin can be fixed in the vertical direction, and the positioning mechanism, the quick exchange holder part, and the battery pack of the electric vehicle using the positioning seat 10 can be positioned and fixed in the vertical direction. In this embodiment, the movement of the battery pack is restricted, the complexity of the state in which the battery pack can move is reduced, which is helpful to extend the life of the battery pack, and the probability of the battery pack being destroyed is reduced, and at the same time, it is helpful to analyze the cause of the failure of the battery pack.

[0082] In one embodiment, the clamping device 13 is provided at the positioning point of the positioning pin in the slideway 11. In this embodiment, by providing the clamping device at the positioning point, the positioning pin can be more firmly fixed to the positioning point, and the probability that the positioning pin will move unexpectedly to the positioning point can be reduced.

[0083] Specifically, the clamping device 13 includes a swinging body 131 and a fixed shaft 132, the fixed shaft 132 is connected to the positioning seat body 101, the swinging body 131 can rotate around the fixed shaft 132, and when the positioning pin is located at the positioning point, the swinging body 131 abuts against the outer wall of the positioning pin. In this embodiment, the swinging body 131 and the fixed shaft 132 can simplify the configuration of the clamping device 13, and the swinging body 131 can be rotated around the fixed shaft 132, so that the swinging body 131 can be more easily switched to the positioning state and the firmness of the positioning point on the positioning pin can be increased. In other embodiments, the clamping device 13 may be designed in other ways.

[0084] In one embodiment, the rocker 131 further has an arc surface that abuts against the outer wall of the positioning pin. In this embodiment, the arc surface of the rocker 131 abuts against the positioning pin, thereby improving the firmness of the positioning point on the positioning pin. In other embodiments, the rocker 131 may be designed in other ways.

[0085] In order for the positioning pin to slide easily into the rocker 131, if the positioning pin does not enter the slideway 11, the rocker 131 may be swung to the entrance of the slideway 11. In this embodiment, by swinging the rocker 131 to the entrance, the positioning pin can enter the rocker 131 more easily and the firmness of the positioning pin within the rocker 131 can be increased.

[0086] In one embodiment, the clamping device 13 further includes an elastic part, which is installed between the positioning seat body 101 and the oscillating body 131, and acts on the oscillating body 131 so that the abutment surface of the oscillating body 131 faces the sliding direction of the positioning pin when no force is applied to the oscillating body 131. In this embodiment, the elastic part is used to make the oscillation face the sliding direction of the positioning pin, so that the positioning pin can smoothly slide into the oscillating body 131, which is helpful for the clamping device 13 to clamp the positioning pin.

[0087] In order to enhance the stability of the elastic part, one end of the elastic part is inserted into the oscillating body 131, and the other end may be brought into contact with the positioning seat body 101. In this embodiment, by inserting the elastic part into the oscillating body 131 and the positioning seat body 101, the stability of the elastic part can be enhanced, and the elastic part serves to apply elastic force to the oscillating body 131 instead.

[0088] In this embodiment, the elastic part is designed as a spring 15. In this embodiment, the design form of the elastic part is simplified by using the spring 15, which can extend the life of the elastic part and reduce the usage cost of the positioning seat 10. In other embodiments, the elastic part may be designed in other forms, and of course, other mounting positions may be selected.

[0089] In one embodiment, the clamping device 13 includes two clamping parts 130, each of which includes a rocker 131 and a fixed shaft 132, and the two clamping parts 130 are symmetrically installed on both sides of the slideway 11. In this embodiment, since the clamping parts 130 are symmetrically installed, when the locating pin is located at the locating point, the two clamping parts 130 can clamp the locating pin at the same time, thereby improving the firmness of the locating seat 10. In other embodiments, only one clamping part 130 needs to be designed, and the corresponding technical problem can be solved as well.

[0090] In this embodiment, as shown in Figures 14 and 15, when the positioning pin is located at the positioning point, the center line of the positioning pin and the center lines of the two fixed shafts 132 are on the same plane. In this embodiment, the center line of the positioning pin and the center lines of the two fixed shafts 132 are designed to be on the same plane, so that when the positioning pin is located at the positioning point, the distance between the positioning pin and the two fixed shafts 132 is minimized, and the positioning pin can be more firmly clamped by the two rocking bodies 131, and at this time, the force received in the axial direction of the positioning pin is maximized, making it difficult for the positioning pin to leave the positioning point, and the firmness of the positioning seat 10 is increased. When the positioning pin is located at the positioning point, the positioning pin and the two rocking bodies 131 can also be designed to be snugly fitted together. In this embodiment, the positioning pin can be more firmly clamped by the two rocking bodies 131, and at this time, the force received in the axial direction of the positioning pin is greater, making it more difficult for the positioning pin to leave the positioning point, and it is more firmly fixed to the positioning point.

[0091] In one embodiment, the positioning seat 10 further includes a buffer part, at least a part of which is located on the slideway 11, and the buffer part abuts against the wall surface of the positioning pin when the positioning pin is located at the positioning point. In this embodiment, the buffer part is used to absorb part of the kinetic energy when the positioning pin is converted into the positioning state, so that the collision of the positioning pin with the positioning seat 10 can be avoided, the noise when the positioning pin is positioned can be reduced, and the firmness of the positioning pin being located in the positioning state can be improved.

[0092] Specifically, in this embodiment, the buffer part is the elastic cushion 14. In this embodiment, the elastic cushion 14 is used as the buffer part, so that the cost of the buffer part can be reduced and the buffer effect of the buffer part can be improved. In other embodiments, the buffer part may be designed in other forms.

[0093] In this embodiment, as shown in Figures 11 and 12, the receiving chambers for the fastening parts 130 are provided on both sides of the slideway 11, and the fastening parts 130 are respectively installed in the receiving chambers on both sides. The receiving chambers are for providing receiving space for the fastening parts 130. At the same time, the mounting hole of the fixed shaft 132 is provided on the positioning seat body 101, so that the rocker 131 can rock around the fixed shaft 132 in the receiving chamber. When the rocker 131 rotates to the left or right to the limit, the outer wall of the rocker 131 contacts the positioning seat body 101, thereby restricting the rocker 131 from rotating any further. At this time, the arc surface of the rocker 131 and the edge of the slideway 11 are aligned and butted together, so that the butted positioning pin can stably enter and exit the arc surface of the rocker 131. Generally, when the positioning pin does not enter the arcuate surface of the rocker 131, the rocker 131 rotates in the direction in which the positioning pin slides in due to the action of the spring 15. At this time, the arcuate surface of the rocker 131 and the edge of the slideway 11 are aligned.

[0094] The positioning pin enters the slideway 11 through the opening 12 and then continuously advances along the slideway 11. When the positioning pin reaches the butt point between the slideway 11 and the arcuate surface of the oscillating body 131, the slideway 11 and the arcuate surface are butted together, so that the positioning pin can stably enter the arcuate surface of the oscillating body 131.

[0095] When the positioning pin continues to advance along the arc surface and gradually reaches the middle of the arc surface from the edge of the arc surface, the distance between the axis of the positioning pin and the axes of the fixed shafts 132 on both the upper and lower sides gradually becomes smaller, and the pressure of the positioning pin against the arc surface gradually increases, causing the oscillating body 131 to rotate around the fixed shafts 132.

[0096] When the positioning pin reaches the middle position of the arc surface, that is, when the axis of the positioning pin and the axis of the fixed shafts 132 on both the upper and lower sides are on the same plane, the distance between the axis of the positioning pin and the axis of the fixed shafts 132 on both the upper and lower sides is minimized, the positioning pin and the arc surface of the oscillating body 131 are in a state of being fitted together, and the pressure of the positioning pin against the arc surface of the oscillating body 131 is maximized. The position at this time becomes the positioning point of the positioning pin. The fixing pressure that the positioning pin receives at the positioning point is also maximized. Then, the positioning pin can be fastened and fixed by the two fastening parts 130 on the upper and lower sides, and the positioning pin cannot move in the vertical direction. Also, since the fixed shafts 132 and the arc surface of the oscillating body 131 do not move relative to each other, no frictional force is generated between the positioning pin and the oscillating body 131 at the positioning point. And, when it is at the positioning point, the fastening parts 130 do not generate heat due to frictional force, so that the stability and life of the present invention can be improved. At this time, the elastic cushion 14 also comes into contact with the positioning pin.

[0097] As the positioning pin continues to slide away from the center position of the arcuate surface, the distance between the axis of the positioning pin and the axes of the fixed shafts 132 on both the upper and lower sides gradually increases, and the pressure of the positioning pin against the arcuate surface gradually decreases. At the same time, this pressure causes the oscillating body 131 to rotate around the fixed shafts 132.

[0098] When the positioning pin leaves the arc surface, the rocker 131 rotates in the direction in which the positioning pin slides in due to the action of the spring 15. At this time, the arc surface of the rocker 131 is aligned with the edge of the slideway 11.

[0099] <Example 7> As shown in Fig. 13 to Fig. 16, the positioning mechanism 30 according to this embodiment includes a positioning pin 20 and a positioning seat 10 according to the sixth embodiment, and the positioning pin 20 is installed on the battery pack, and the positioning pin 20 enters the slideway 11 through the opening 12. In this embodiment, the positioning pin 20 can be fixed vertically using the fastening device 13, and the battery pack using the positioning pin 20 can be fixed vertically. In this embodiment, the movement direction of the battery pack can be restricted, the complexity of the state in which the battery pack can move can be reduced, which is helpful in extending the life of the battery pack, and the probability of the battery pack being destroyed can be reduced. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0100] In one embodiment, the positioning pin 20 may be designed to be integrally configured. The integral configuration is achieved by machining, and the positioning pin 20 according to this embodiment has the advantages of being simple in configuration and excellent in strength and rigidity. The position where the positioning pin 20 fits into the tightening device 13 may be heat treated to increase wear resistance. In this embodiment, the service life of the positioning pin 20 can be further extended, and the operating costs of the positioning mechanism 30 can be reduced.

[0101] In this embodiment, the positioning pin 20 enters the positioning seat body 101 through the opening 12 of the slideway 11. When the positioning pin 20 does not enter the fastening part 130, the swinging body 131 swings in the direction in which the positioning pin 20 slides in due to the action of the spring 15. When the positioning pin 20 gradually slides from the slideway 11 onto the arc surface of the swinging body 131, the swinging body 131 starts to roll around the fixed shaft 132 due to the action of both the pressure from the positioning pin 20 and the elastic force from the spring 15. When the positioning pin 20 arrives at the positioning point, that is, when the positioning pin 20 arrives at the middle of the arc surface of the swinging body 131, the axis of the two fixed shafts 132 located above and below and the axis of the positioning pin 20 become on the same plane, and at this time, the distance between the positioning pin 20 and the two fixed shafts 132 becomes minimum. Therefore, the pressure of the two rocking bodies 131 on the positioning pin 20 is maximized, that is, the pressure received by the two clamping parts 130 located above and below the positioning pin 20 is maximized. Then, the positioning pin 20 can be fixed in the vertical direction. In one embodiment, the positioning pin 20 and the two rocking bodies 131 are designed to be snugly fitted together, so that the positioning pin 20 can be more firmly clamped by the two rocking bodies 131, that is, the force received in the axial direction by the positioning pin 20 is larger, and thus the positioning pin 20 is more difficult to leave the positioning point and is more firmly fixed to the positioning point.

[0102] In this embodiment, an elastic cushion 14 is further provided at the end of the slideway 11. A part of the elastic cushion 14 is installed in the slideway 11, and the other part is inserted into the positioning seat body 101. The elastic cushion 14 serves to suppress the collision of the positioning pin 20 with the positioning seat 10, reduce the noise when the positioning pin 20 is positioned, and increase the firmness when the positioning pin 20 is positioned in the positioning state.

[0103] <Example 8> As shown in FIG. 17, the quick change holder part 40 of this embodiment is for mounting a battery pack. The quick change holder part 40 includes a quick change holder 41 and further includes the positioning mechanism 30 of the seventh embodiment, and the quick change holder 41 is connected to the positioning seat 10. In this embodiment, the quick change holder 41 including the positioning seat 10 is used to prevent the battery pack located on the quick change holder part 40 from being detached from the quick change holder 41 along the height direction, and thus the battery pack using the quick change holder part 40 can be fixed in the height direction. In this embodiment, the movement direction of the battery pack is restricted, the complexity of the state in which the battery pack can move is reduced, which is helpful in extending the life of the battery pack, and the probability of the battery pack being destroyed can be reduced. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0104] <Example 9> As shown in FIG. 18, the electric vehicle according to this embodiment is shown in the figure as a battery pack component 50 of the electric vehicle. The electric vehicle includes a battery pack component 50 and a quick-change holder component 40 according to the eighth embodiment. The quick-change holder component 40 includes the positioning seat 10 according to the sixth embodiment, and the battery pack 51 includes a positioning pin 20 and a battery pack 51, and the positioning pin is installed on the side of the pack 51. The positioning pin 20 and the positioning seat 10 are fitted together to fix the battery pack 51 of the electric vehicle in the height direction. In this embodiment, the movement direction of the battery pack 51 is suppressed, the complexity of the state in which the battery pack 51 can move is reduced, which is helpful in extending the life of the battery pack 51, and the probability of the battery pack 51 being destroyed can be reduced. At the same time, it is helpful in analyzing the cause of the failure of the battery pack 51.

[0105] <Example 10> As shown in FIG. 19 to FIG. 22, the quick change holder part 10 according to the present embodiment is for mounting a battery pack on an electric vehicle. The quick change holder part 10 includes a quick change holder 11, a locking mechanism 20, and a positioning mechanism, the locking mechanism 20 and the positioning mechanism are respectively installed on the quick change holder 11, and the locking mechanism 20 is for locking the battery pack on the electric vehicle and restricting the battery pack from moving along the direction of travel of the electric vehicle. The positioning mechanism is for restricting the battery pack from moving in a direction perpendicular to the direction of travel on a horizontal plane and / or restricting the battery pack from moving in a vertical direction. In this embodiment, the quick change holder part 10 is provided with a slideway positioning mechanism 30 and a double pendulum positioning mechanism 40, so that the battery pack can be fixed in the axial and vertical directions on the slideway pin 32. In this embodiment, the movement of the battery pack can be restricted, the complexity of the state in which the battery pack can move can be reduced, which is helpful in extending the life of the battery pack, and the probability of the battery pack being destroyed can be reduced. At the same time, it is helpful in analyzing the cause of the failure of the battery pack.

[0106] In one embodiment, the positioning mechanism further includes a slide positioning mechanism 30 for restricting the battery pack from moving along a direction perpendicular to the direction of travel within a horizontal plane.

[0107] Specifically, the slideway positioning mechanism 30 is similar to the positioning mechanism 3 in the first to fifth embodiments, the slideway seat 31 is similar to the positioning seat 1 in the first to fifth embodiments, and the slideway pin 32 is similar to the positioning pin 2 in the first to fifth embodiments. The first position limiting portion is similar to the first position limiting surface 131 in the first to fifth embodiments, and the second position limiting portion is similar to the second position limiting surface 132 in the first to fifth embodiments.

[0108] A first position limiting portion is provided on the slide 11 in the slide seat 31, and a second position limiting portion 321 is provided on the slide pin 32. The second position limiting portion is engaged with the first position limiting portion to restrict the battery pack from moving along the axial direction of the slide pin 32.

[0109] In this embodiment, the slideway positioning mechanism 30 is installed on the left or right side of the quick change holder 11, so that the battery pack can be fixed in the axial direction of the slideway pin 32, and the battery pack can be restricted from moving in a direction perpendicular to the traveling direction on the horizontal plane. This solves the problem that simultaneous positioning on both sides of the axial direction of the slideway pin 32 makes it difficult to install the battery pack, and increases the requirement for positioning accuracy.

[0110] In order to simplify the configuration of the first position limiting portion, the first position limiting portion may be designed as a protruding portion or a recessed portion. In this embodiment, by designing the first position limiting portion as a protruding portion or a recessed portion, it is possible to realize the function of limiting the position by the slideway seat 31, and to simplify the configuration of the first position limiting portion and extend the service life of the slideway seat 31.

[0111] In one embodiment, the second position limiting part is provided around the slideway pin 32, and the second position limiting part is rotatable relative to the slideway pin 32. In this embodiment, the second position limiting part is provided around the outside of the slideway pin 32, so that the second position limiting part can be more fully engaged with the first position limiting part, and the firmness of the slideway pin 32 in the positioned state can be improved. At the same time, the second position limiting part is designed to be rotatable, which reduces the resistance force when the slideway pin 32 enters the slideway, and helps to extend the service life of the slideway pin 32.

[0112] In one embodiment, the positioning mechanism further includes a double pendulum positioning mechanism 40, which is for restricting the battery pack from moving along the vertical direction. In this embodiment, the double pendulum positioning mechanism 40 can be used to restrict the vertical movement of the battery pack, simplifying the configuration of the quick change holder part 10, restricting the movement of the battery pack, reducing the complexity of the state in which the battery pack can move, helping to extend the life of the battery pack, and reducing the probability of the battery pack being destroyed.

[0113] Specifically, the double pendulum positioning mechanism 40 is similar to the positioning mechanism 30 in the sixth to ninth embodiments, the double pendulum base 41 is similar to the positioning base 10 in the sixth to ninth embodiments, and the double pendulum pin 42 is similar to the positioning pin 20 in the sixth to ninth embodiments.

[0114] In one embodiment, the double pendulum positioning mechanism 40 is symmetrically installed on one or both of the left and right sides of the quick change holder 11. In this embodiment, by installing the double pendulum positioning mechanism 40 on one side of the quick change holder 11, the vertical movement of the battery pack can be restricted, and by installing the double pendulum positioning mechanism 40 on both sides of the quick change holder 11, the robustness of the battery pack can be increased.

[0115] <Example 11> The electric vehicle according to this embodiment includes a battery pack part 60 and a quick-change holder part 10 according to the tenth embodiment. FIG. 22 shows the battery pack part 60 according to this embodiment. In this embodiment, the quick-change holder part 10 can be used to fix the battery pack 61 of the electric vehicle in the direction in which the electric vehicle runs, in the vertical direction, and in the axial direction of the slide pin 32. This embodiment can limit the direction of movement of the battery pack 61, reduce the complexity of the state in which the battery pack 61 can move, help to extend the life of the battery pack 61, and reduce the probability of the battery pack 61 being destroyed. At the same time, it can help to analyze the cause of the failure of the battery pack 61.

[0116] Although the specific embodiments of the present invention have been described in detail above, it should be understood by those skilled in the art that these are merely illustrative and that various changes and modifications to these embodiments are possible without departing from the principles and spirit of the present invention. Therefore, the scope of protection of the present invention is limited by the claims. [Explanation of symbols]

[0117] Examples 1 to 5 1 Positioning seat 11 Slide 111 Support Platform 12 Aperture 13 Recess 131 First position limiting surface 132 Second position limiting surface 14 Elastic Cushion 2 Locating pin 21 pin socket 22 pin shaft 23 Shaft sleeve 24 Shaft interference part 3 Positioning mechanism 4 Quick Change Holder Parts 41 Quick Change Holder 5 Battery pack parts 51 Battery Pack Examples 6 to 9 10 Positioning seat 101 Positioning seat body 11 Slide 12 Aperture 13 Tightening device 130 Fastening parts 131 Rocking Body 132 Fixed axis 14 Elastic Cushion 15 Spring 20 Positioning pin 30 Positioning mechanism 40 Quick Change Holder Parts 41 Quick Change Holder 50 Battery pack parts 51 Battery Pack Examples 10 and 11 10 Quick Change Holder Parts 11 Quick Change Holder 20 Locking mechanism 30 Slideway positioning mechanism 31 Slide 11 Slide 32 Slide pin 23 Shaft sleeve 40 Double pendulum positioning mechanism 41 Double Pendulum Seat 42 Double Pendulum Pin 60 Battery pack parts 61 Battery Pack

Claims

1. A positioning seat for positioning and fixing a battery pack, The positioning seat is for receiving a positioning pin for fixing the battery pack, and has an opening and a slideway extending from the opening on a side surface thereof, the opening is for the locating pin to enter the slideway; a first position limiting portion is provided in the slideway to limit the positioning pin from coming off the positioning seat along the axial direction; the slideway has a support platform for supporting the locating pin; The positioning seat, characterized in that the first position limiting portion is provided on the support platform.

2. The positioning seat according to claim 1 , wherein the first position limiting portion has a cross section which is one of an arc shape, a V shape, and a trapezoid shape.

3. The positioning seat according to claim 1 or 2, wherein the first position limiting portion is a protrusion or a recess.

4. When the first position limiting portion is a convex portion, the convex portion has a first position limiting surface and a second position limiting surface, and a point where the first position limiting surface and the second position limiting surface intersect is a highest point of the convex portion, The positioning seat according to claim 3 , wherein the first position limiting surface and the second position limiting surface are flat surfaces or curved surfaces.

5. The positioning seat according to any one of claims 1 to 4, characterized in that the positioning seat further includes a buffer portion, at least a portion of which is located within the slideway, and the buffer portion abuts against a wall surface of the positioning pin when the positioning seat is in a positioning state.

6. A positioning seat for positioning and fixing a battery pack, The positioning seat includes a positioning seat body having an opening and a slideway extending from the opening on a side surface thereof, the opening is for allowing a locating pin of a battery pack to enter the slideway; The positioning seat further includes a clamping device disposed within the slideway; The positioning seat is characterized in that, when the positioning pin is located at a positioning point, the tightening device abuts against the positioning pin in a vertical direction.

7. 7. The positioning seat according to claim 6, characterized in that the clamping device is provided at a positioning point of the positioning pin in the slideway.

8. The positioning seat according to claim 6 or 7, characterized in that the tightening device includes a oscillating body and a fixed shaft, the fixed shaft is connected to the positioning seat main body, the oscillating body is rotatable around the fixed shaft, and when the positioning pin is located at the positioning point, the oscillating body abuts against the outer wall of the positioning pin.

9. The positioning seat as described in Claim 8, characterized in that the oscillating body has an arc surface abutting against the outer wall of the positioning pin.

10. The positioning seat described in Claim 8, characterized in that the clamping device includes two clamping parts, each of which includes the oscillating body and the fixed shaft, and the two clamping parts are installed symmetrically on both sides of the slideway.

11. The positioning seat described in Claim 8 or 9, characterized in that the tightening device further includes an elastic portion which is installed between the positioning seat main body and the oscillating body and acts on the oscillating body so that the abutment surface of the oscillating body moves in the direction in which the positioning pin slides in when no force is received by the oscillating body.

12. The positioning seat according to any one of claims 6 to 11, characterized in that the positioning seat further includes a buffer portion, at least a portion of which is located within the slideway, and when the positioning pin is located at the positioning point, the buffer portion abuts against a wall surface of the positioning pin.

13. A positioning pin connected to a battery pack, The positioning pin is adapted to mate with the positioning seat according to any one of claims 1 to 5, A positioning pin characterized in that the positioning pin is provided with a second position limiting portion that engages with the first position limiting portion to restrict the battery pack from moving along the axial direction of the positioning pin.

14. The first position limiting portion is a recessed portion, and the second position limiting portion is a protruding portion and is plural in number, The positioning pin according to claim 13, wherein the plurality of protruding portions are distributed in an axial direction of the positioning pin or in a radial direction of the positioning pin.

15. The positioning pin according to claim 13 or 14, characterized in that the second position limiting portion and the positioning pin are integrally configured, or the second position limiting portion is removably connected to the positioning pin.

16. A positioning mechanism for positioning and fixing a battery pack, The positioning mechanism includes a positioning seat according to any one of claims 1 to 5 and a positioning pin according to any one of claims 13 to 15, A positioning mechanism for positioning and fixing a battery pack, characterized in that the positioning pin is installed on a battery pack, and the positioning mechanism is configured to restrict the battery pack from detaching from the positioning seat along the axial direction of the positioning pin.

17. A positioning mechanism for positioning and fixing a battery pack, comprising: The positioning mechanism includes a positioning pin and a positioning seat according to any one of claims 6 to 12, A positioning mechanism for positioning and fixing a battery pack, wherein the positioning pin is attached to the battery pack, and the positioning pin enters the slideway through the opening.

18. A quick change holder component for mounting a battery pack, comprising: the quick change holder component includes a quick change holder; The quick change holder part further comprises a positioning mechanism as claimed in claim 16 or a positioning mechanism as claimed in claim 17, wherein the positioning seat is provided on the quick change holder.

19. A quick change holder component for mounting a battery pack to an electric vehicle, comprising: the quick change holder components include a quick change holder, a locking mechanism, and a positioning mechanism, the locking mechanism and the positioning mechanism are respectively installed on the quick change holder, and the locking mechanism is for locking the battery pack to the electric vehicle and restricting the battery pack from moving along a direction in which the electric vehicle runs; The quick change holder part is characterized in that the positioning mechanism includes a positioning seat as described in any one of claims 1 to 5, for restricting the battery pack from moving along a direction perpendicular to the direction of travel in a horizontal plane, and / or the positioning mechanism includes a positioning seat as described in any one of claims 6 to 12, for restricting the battery pack from moving along a vertical direction.

20. 20. An electric vehicle comprising a battery pack and the quick change holder component of claim 18 or 19.

Images