CN217903336U - Battery locking device, power battery system and operation machine - Google Patents

Abstract

The utility model relates to an electric machine field provides a battery locking device, power battery system and operation machinery, and the both sides of battery mount respectively set up at least one first mounting. The locking assemblies are arranged on the mounting frame and correspond to the first fixing pieces, and each locking assembly at least comprises a second fixing piece and a driving device which are connected with the mounting frame in a sliding mode. When the driving device drives the second fixing piece to move towards the direction close to the first fixing piece, the second fixing piece locks the first fixing piece on the mounting frame. When the driving device drives the second fixing piece to move in the direction far away from the first fixing piece, the second fixing piece is separated from the first fixing piece, unlocking of the battery fixing frame is completed, and at the moment, the battery replacing equipment can take down the battery fixing frame provided with the power battery. The utility model provides a battery locking device, accessible drive arrangement drive second mounting accomplish locking and unblock to first mounting, and unblock and locking action are simple quick, can improve and trade electric efficiency.

Description

Battery locking device, power battery system and operation machine

Technical Field

The utility model relates to the technical field of electric machinery, especially, relate to a battery locking device, power battery and operation machinery.

Background

With the continuous increase of oil prices and the popularization of new energy technologies, the pure electric operation industry machine will become the trend of future development. The pure electric operation industry machinery has the advantages of zero tail gas emission, low noise, high energy utilization rate and the like.

In order to ensure the working duration of the pure electric operation industry machinery, a power battery system with high electric quantity is generally required to be installed on the pure electric operation industry machinery so as to ensure that the pure electric operation industry machinery continuously works within a single shift. However, the higher the charge, the more power battery packs that are required, the increase in power battery packs adds weight to the overall power battery system and also adds cost to the machine. And a high charge requires a longer charging time. Because the maneuverability of operation machines such as pure electric excavators is poor, once the condition that the electric quantity is exhausted or a certain power battery pack breaks down occurs, the maintenance difficulty is high.

Based on this, the battery replacement becomes an important way to solve the above technical problem, and the battery replacement speed will be an important factor affecting the work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery locking device, power battery system and operation machinery realize improving the effect of trading electric speed.

The utility model provides a battery locking device, include: a mounting frame; the battery fixing frame is provided with at least one first fixing piece on each of two sides; the locking assemblies are arranged at positions of the mounting frame corresponding to the first fixing pieces, each locking assembly comprises at least one second fixing piece and a driving device, the second fixing pieces are connected with the mounting frame in a sliding mode, and the driving device is used for driving the second fixing pieces to move towards or away from the first fixing pieces; when the second fixing piece moves towards the direction close to the first fixing piece, the second fixing piece fixes the first fixing piece on the mounting frame, and when the second fixing piece moves towards the direction far away from the first fixing piece, the second fixing piece releases the first fixing piece.

According to the utility model provides a battery locking device, first mounting is the fixed plate, the second mounting is the latch hook, the hook handle of latch hook with mounting bracket sliding connection works as the latch hook is to being close to when the direction of fixed plate removed, the hook body of latch hook be used for with the fixed plate compresses tightly the hook body with between the mounting bracket.

According to the utility model provides a battery locking device, the fixed plate is kept away from one side of mounting bracket is provided with guide face and the first face that compresses tightly, along keeping away from the direction of latch hook, the guide face with distance between the mounting bracket increases gradually, first face setting that compresses tightly is in the guide face is kept away from the one end of latch hook, the coupler body is close to one side of mounting bracket is provided with the second and compresses tightly the face, the second compress tightly the face with distance between the mounting bracket is less than first compress tightly the face with distance between the mounting bracket, just the second compress tightly the face with distance between the mounting bracket is greater than the guide face is close to the one end of latch hook with distance between the mounting bracket.

According to the utility model provides a battery locking device, the coupler body is close to one side of mounting bracket still is provided with blocks the face, it is in to block the face setting the second compresses tightly the face and keeps away from the one end of fixed plate, block the face be used for with guide face laminating.

According to the utility model provides a battery locking device, the hook handle of latch hook is provided with the spout that extends along the slip direction along with slip direction vertically both sides, be provided with on the mounting bracket with the slide rail that the spout corresponds, the spout with the slide rail cooperation is connected, just the slide rail with the spout is used for the restriction the latch hook is along removing with slip direction vertically direction.

According to the utility model provides a battery locking device, be provided with the mounting groove on the slide rail, the mounting groove is used for supplying the hook handle passes.

According to the utility model provides a battery locking device, drive arrangement includes linear movement device, the hook handle with linear movement device's removal end is connected, linear movement device is used for the drive the latch hook removes.

According to the utility model provides a battery locking device, the fixed plate is close to one side of coupler body with the mounting bracket is close to one side of coupler body, one of them person between them is provided with the guide locating pin, and the other is provided with the constant head tank, the guide locating pin with the constant head tank is used for the guide the fixed plate removes latched position.

The utility model also provides a power battery system, including frame, power battery and as above arbitrary battery locking device, be provided with a plurality ofly on the frame battery locking device, battery locking device's mounting bracket sets up on the frame, battery locking device's locking Assembly is used for installing power battery the battery mount locking is in on the mounting bracket, perhaps will install power battery the battery mount is followed release on the mounting bracket.

The utility model also provides an operation machine, include as above any battery locking device or include as above power battery system.

The utility model provides a battery locking device, including mounting bracket, battery mount and locking Assembly. The battery fixing frame is used for being connected with a power battery, and two sides of the battery fixing frame are respectively provided with at least one first fixing piece. The locking assemblies are arranged at positions, corresponding to the first fixing members, on the mounting frame, each locking assembly at least comprises a second fixing member and a driving device, the second fixing members are connected with the mounting frame in a sliding mode, and the driving device can drive the second fixing members to move towards or away from the first fixing members. After a battery fixing frame provided with a power battery is pushed to the mounting frame by the battery replacing equipment, the driving device drives the second fixing piece to move towards the direction close to the first fixing piece, and the second fixing piece locks the first fixing piece on the mounting frame to complete the locking of the battery fixing frame. When the power battery needs to be replaced, the driving device drives the second fixing piece to move in the direction away from the first fixing piece, the second fixing piece is separated from the first fixing piece, unlocking of the battery fixing frame is completed, and at the moment, the battery replacing equipment can take down the battery fixing frame provided with the power battery. The utility model provides a battery locking device, accessible drive arrangement drive second mounting accomplish the locking and the unblock to first mounting, and unblock and locking action are simple quick, can improve and trade electric efficiency.

Further, in the power battery system and the working machine of the present invention, since the battery locking device is provided as described above, the same advantages as described above can be obtained.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a power battery system provided by the present invention;

fig. 2 is a schematic structural view of a battery locking device provided with a power battery according to the present invention;

fig. 3 is a schematic structural view of the mounting bracket and the locking assembly provided by the present invention;

fig. 4 is a schematic structural view of the locking assembly provided by the present invention;

fig. 5 is a schematic top structure view of the mounting bracket provided by the present invention;

fig. 6 is a schematic bottom structure diagram of the mounting frame provided by the present invention;

fig. 7 is a cross-sectional view of the battery locking device provided by the present invention in an unlocked state;

fig. 8 is a cross-sectional view of the battery locking device provided by the present invention in a locked state;

fig. 9 is a schematic structural diagram of a fixing plate provided by the present invention;

fig. 10 is a schematic structural diagram of the latch hook provided by the present invention;

reference numerals are as follows:

100: a mounting frame; 110: a slide rail; 120: a slide hole; 130: mounting grooves; 140: a guide positioning pin; 200: a battery holder; 300: a power battery; 400: a fixing plate; 410: a guide surface; 420: a first pressing surface; 430: positioning a groove; 500: a latch hook; 510: a hook body; 511: a second compression surface; 512: a blocking surface; 520: a hook handle; 521: a chute; 610: a linear moving device; 620: a connecting rod; 700: a frame.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The battery locking device, the power battery system, and the working machine according to the present invention will be described with reference to fig. 1 to 10.

The utility model provides a battery locking device, including mounting bracket 100, battery mount 200 and locking Assembly, locking Assembly sets up on mounting bracket 100, and battery mount 200 is used for installing power battery 300, and locking Assembly is used for fixing the battery mount 200 that will install power battery 300 on mounting bracket 100, perhaps releases the battery mount 200 that will install power battery 300 from mounting bracket 100.

The battery holder 200 is used for connecting with the power battery 300, and two sides of the battery holder 200 are respectively provided with at least one first fixing element. The locking assemblies are disposed on the mounting block 100 corresponding to the first fixing members, each locking assembly includes at least one second fixing member slidably coupled to the mounting block 100, and a driving device for driving the second fixing member to move toward or away from the first fixing member.

When the battery fixing frame is used, the power battery 300 is connected with the battery fixing frame 200, and the battery fixing frame 200 provided with the power battery 300 is pushed onto the mounting frame 100 by using the battery replacing device (not shown in the present invention). After the battery fixing frame 200 is pushed to the proper position, the driving device drives the second fixing member to move towards the direction close to the first fixing member, and the second fixing member fixes the first fixing member and the mounting frame 100, so as to complete the fixing of the battery fixing frame 200. When the power battery 300 needs to be replaced, the driving device drives the second fixing member to move in the direction away from the first fixing member, so that the second fixing member releases the first fixing member, and the battery fixing frame 200 provided with the power battery 300 is taken down from the mounting frame 100 by using the battery replacing device.

The utility model provides a battery locking device removes through drive arrangement drive second mounting, accomplishes the fixed or release to first mounting, realizes trading the effect of electricity fast.

In an embodiment of the present invention, the first fixing element may be the fixing plate 400, and the second fixing element may be the locking hook 500. The shank 520 of the locking hook 500 is slidably coupled to the mounting block 100, and when the locking hook 500 moves in a direction approaching the fixing plate 400, the hook body 510 of the locking hook 500 can press the fixing plate 400 between the hook body 510 and the mounting block 100.

In this embodiment, the mounting block 100 may be horizontally disposed, and the top surface of the mounting block 100 is used to support the battery holder 200. The hook 500 may include a hook body 510 and a hook stem 520, and the hook body 510 and the hook stem 520 may be disposed at a right angle. The bottom of the hook 520 can be slidably connected to the mounting frame 100, and the sliding direction can be along the X direction, one end of the hook 510 can be connected to the top of the hook 520, and the other end of the hook 510 can extend to the positive direction of the X direction, and a groove-shaped structure is formed between the bottom of the hook 510, the top of the mounting frame 100, and one side of the hook 520 close to the free end of the hook 510.

When mounting, the battery holder 200 with the power battery 300 mounted thereon is pushed onto the mounting block 100, the fixing plate 400 on the battery holder 200 is located on the top surface of the mounting block 100, and the fixing plate 400 is located on the open end side of the groove-like structure. When the battery fixing frame is pushed to the right position, the driving device drives the locking hook 500 to move towards the direction close to the fixing plate 400, namely, to move along the forward direction in the X direction, and when the locking hook 500 moves to the right position, the hook body 510 is pressed against the top of the fixing plate 400, and at this time, the fixing plate 400 is clamped between the bottom surface of the hook body 510 and the top surface of the mounting frame 100, so that the battery fixing frame 200 is locked and fixed. When the battery needs to be replaced, the driving device drives the locking hook 500 to move in the direction away from the fixing plate 400, that is, in the negative direction of the X direction, the bottom surface of the hook body 510 is separated from the upper surface of the fixing plate 400, the locking hook 500 releases the fixing plate 400, and the battery replacement device can remove the battery fixing frame 200 with the power battery 300 mounted thereon.

In an embodiment of the present invention, the side of the fixing plate 400 away from the mounting frame 100 is provided with a guide surface 410 and a first pressing surface 420, and the distance between the guide surface 410 and the mounting frame 100 gradually increases along the direction away from the locking hook 500, i.e. along the positive direction of the X direction, and the first pressing surface 420 is disposed at one end of the guide surface 410 away from the locking hook 500. One side of the hook body 510 close to the mounting block 100 is provided with a second pressing surface 511, the distance between the second pressing surface 511 and the mounting block 100 is smaller than the distance between the first pressing surface 420 and the top surface of the mounting block 100, and the distance between the second pressing surface 511 and the mounting block 100 is larger than the distance between one end of the guide surface 410 close to the latch hook 500 and the top surface of the mounting block 100.

In this embodiment, the mounting block 100 may be horizontally disposed, and the top surface of the mounting block 100 is used to support the battery holder 200. The fixing plate 400 is disposed on a side of the mounting block 100, that is, a bottom surface of the fixing plate 400 may be a plane and is attached to a top surface of the mounting block 100. The fixing plate 400 may include a guide surface 410 and a first pressing surface 420 on a side of the fixing plate 400 away from the mounting block 100, i.e., a top surface of the fixing plate 400, the guide surface 410 serving to guide the hook bodies 510 to slide onto the first pressing surface 420.

The distance between the guide surface 410 and the top surface of the mounting bracket 100 gradually increases in a direction away from the latch hook 500, i.e., in the positive direction of the X-direction, and the guide surface 410 forms a slope extending in the positive direction of the X and upward. The first pressing surface 420 is a plane parallel to the top surface of the mounting block 100 and is smoothly connected to an end of the guide surface 410 away from the latch hook 500.

The second pressing surface 511 is disposed at a side of the hook body 510 close to the mounting block 100, i.e., a bottom surface of the hook body 510, and the second pressing surface 511 may be a plane parallel to the top surface of the mounting block 100. The distance between the second pressing surface 511 and the mounting block 100 is greater than the distance between the end of the guide surface 410 close to the hook 500 and the top surface of the mounting block 100, so that the second pressing surface 511 can smoothly slide onto the guide surface 410, and the end of the guide surface 410 close to the hook body 510 is prevented from obstructing the sliding of the hook body 510. Meanwhile, the distance between the second pressing surface 511 and the mounting bracket 100 is smaller than the distance between the first pressing surface 420 and the top surface of the mounting bracket 100, and after the second pressing surface 511 is guided onto the first pressing surface 420 by the guide surface 410, the second pressing surface 511 can provide downward pressure to the fixing plate 400 through the first pressing surface 420, so that the fixing plate 400 is in interference fit with the groove-shaped structures formed by the hook bodies 510 and the mounting bracket 100. Since the battery locking apparatus is mainly applied to a working machine, the interference fit can prevent the hook 510 and the fixing plate 400 from being loosened or disconnected during vibration or movement of the working machine.

The driving means drives the hook 500 to move in a direction approaching the fixing plate 400, such that the front end of the second pressing surface 511 of the hook body 510 first reaches the upper side of the end of the guide surface 410, which is close to the hook body 510, the front end of the second pressing surface 511 of the hook body 510 contacts the guide surface 410 with the continuous movement of the hook 500, and the front end of the second pressing surface 511 of the hook body 510 slides along the guide surface 410 to the first pressing surface 420 under the guidance of the guide surface 410. The hook body 510 continues to move until the second pressing surface 511 and the first pressing surface 420 are overlapped to reach a certain area, and preferably, the movement stops when the end surface of the fixing plate 400 near one end of the locking hook 500 contacts with one side of the hook handle 520 near the fixing plate 400, and at this time, the contact area of the second pressing surface 511 and the first pressing surface 420 is the largest.

In an embodiment of the present invention, a blocking surface 512 is disposed at a position close to the hook stem 520 at the bottom of the hook body 510, the blocking surface 512 may be disposed parallel to the guide surface 410, the bottom end of the blocking surface 512 is flush with the bottom end of the guide surface 410, and the top end of the blocking surface 512 is flush with the top end of the guide surface 410. The latch hook 500 stops moving when it moves to a position where the stop surface 512 abuts the guide surface 410. So configured, the fixing plate 400 is prevented from hitting the shank 520 of the hook 500 during the movement of the hook 500.

In an embodiment of the present invention, the hook handle 520 of the locking hook 500 can be disposed on two sides along the Y direction and along the X direction extending chute 521, the mounting frame 100 is disposed with the slide rail 110 corresponding to the chute 521, the slide rail 110 extends along the X direction, the chute 521 is connected to the slide rail 110 in a matching manner, and the slide rail 110 and the chute 521 can limit the locking hook 500 to move along the Z direction.

In this embodiment, two sides of the mounting frame 100 may be square tubes, each square tube extends along the X direction, and each square tube includes a top plate, a bottom plate, and two side plates distributed along the Y direction.

A plurality of sliding holes 120, the number of which is the same as that of the locking hooks 500, are formed in the top plate of the square tube in the X direction, the bottom of the hook handle 520 of the locking hook 500 extends below the top plate of the square tube through the sliding holes 120, and the hook body 510 of the locking hook 500 is located above the top plate.

The bottom plate of square pipe is provided with along the logical groove of X to extension along the central point position of Y to, and this logical groove is along the bottom plate that the Z is to running through square pipe. The through groove divides the bottom plate into two parts. The hook handle 520 of the hook 500 is provided with a sliding slot 521 at each side along the Y direction, the sliding slot 521 extends inwards from the outer surface of the hook handle 520 and penetrates through the hook handle 520 along the X direction, and the sliding slots 521 at each side of the hook handle 520 are symmetrically arranged. The bottom plates at both sides of the through groove are inserted into the sliding grooves 521 at both sides of the hook handle 520.

The bottom plate can be used as a sliding rail 110 of the locking hook 500, so that the locking hook 500 can slide along the extending direction of the bottom plate, i.e. along the X direction, and meanwhile, the bottom plate and the sliding groove 521 cooperate to limit the movement of the locking hook 500 along the Z direction.

In the process of locking the battery holder 200, the locking hook 500 moves forward in the X direction under the restriction of the bottom plate, and on the other hand, due to the restriction of the bottom plate to the locking hook 500 in the Z direction, when the second locking surface of the hook 510 contacts the first pressing surface 420 of the fixing plate 400, the bottom plate can provide a downward pressure to the hook 510, so that the fixing plate 400 is pressed between the hook 510 and the top plate of the square tube.

In an embodiment of the present invention, the mounting groove 130 is disposed between the two sliding rails 110, the mounting groove 130 is disposed on the bottom plate of the square pipe, the mounting groove 130 can be symmetrically disposed about the extending direction of the through groove of the bottom plate, the mounting groove 130 can be a square groove, the width along the Y direction thereof is greater than the width along the Y direction of the hook handle 520, the length along the X direction is greater than the length along the X direction of the hook handle 520, and thus, the hook handle 520 of the hook latch 500 can be ensured to pass through.

When the latch hook 500 is installed, the bottom of the hook handle 520 of the latch hook 500 extends downward from the slide hole 120 on the top plate of the square tube until the hook handle passes through the installation groove 130, so that the slide grooves 521 on both sides of the hook handle 520 are aligned with the bottom plate, and then the latch hook 500 is moved in the positive direction X, so that the slide grooves 521 on both sides of the hook handle 520 are slidably connected with the bottom plate.

In an embodiment of the present invention, the driving device may be a linear moving device 610, the handle 520 of the locking hook 500 is connected to the moving end of the linear moving device 610, and the linear moving device 610 can drive the handle 520 to move along the X direction.

In this embodiment, the linear motion device 610 may be a cylinder, or an electric push rod, etc. of the linear motion device 610. When the latch hook 500 sets up a plurality ofly, establish ties a plurality of latch hooks 500 together through connecting rod 620, but make a plurality of latch hooks 500 simultaneous movement, connecting rod 620 extends along X to, is connected the one end of connecting rod 620 with the telescopic link of cylinder, hydro-cylinder or electric push rod, and the flexible direction of telescopic link is along X to, and when the telescopic link was flexible, accessible connecting rod 620 drove a plurality of latch hooks 500 and is followed X to the motion.

In another embodiment, the linear moving device 610 may include a lead screw and a motor, the lead screw is rotatably connected to the mounting block 100, and the axial position of the lead screw is fixed, and the lead screw extends along the X direction. A screw hole may be formed in the hook shank 520 of the hook 500 to penetrate the hook shank 520 in the X direction, and the screw shaft may sequentially penetrate the screw holes of the plurality of hook shanks 520. One end of the screw rod is connected with the motor, and when the motor drives the screw rod to rotate, the plurality of lock hooks 500 move along the X direction under the driving of the threads.

In an embodiment of the present invention, the fixing plate 400 is disposed on one side of the locking hook 500 and the mounting bracket 100 is disposed on one side of the hook 510, one of the fixing plate and the mounting bracket is disposed with the positioning pin 140, and the other is disposed with the positioning groove 430, so that the fixing plate 400 is restricted from moving in the X direction and the Y direction when the positioning pin 140 is combined with the positioning groove 430.

In this embodiment, the guide pins 140 are disposed on the mounting block 100, and further, the guide pins 140 may be disposed on the top surface of the square pipe, on both sides of the sliding hole 120 in the Y direction, and on one side of the sliding hole 120 close to the fixing plate 400, and the guide pins 140 extend vertically upward along the top surface of the square pipe.

The positioning groove 430 is disposed on a vertical end surface of one end of the fixing plate 400 close to the latch hook 500, and corresponds to the position of the guide positioning pin 140. When the battery replacing device pushes the battery holder 200 and the guiding positioning pin 140 reaches the bottom of the positioning groove 430, that is, the battery is pushed to the right position, at this time, the guiding surface of the fixing plate 400 is aligned with the second pressing surface 511 of the hook 510 along the X direction, and it is ensured that the locking hook 500 can move to the position where the blocking surface 512 completely fits the guiding surface 410.

In addition, the positioning groove 430 and the guide pin 140 may guide the fixing plate 400 to move to a proper locking position, and the positioning groove 430 and the guide pin 140 may restrict the movement of the fixing plate 400 in the X-direction and the Y-direction.

In addition, in an embodiment of the present invention, the first fixing element may be a rectangular fixing block, the second fixing element may be a n-shaped fixing block, and the n-shaped fixing block may slide along the Y direction.

After the battery fixing frame 200 provided with the power battery 300 is pushed to the mounting frame 100 by the battery replacement equipment, the cuboid-shaped fixing blocks are aligned with the fixing holes of the n-shaped fixing blocks, the driving device drives the n-shaped fixing blocks to move in the Y direction close to the battery fixing frame 200 to enable the fixing holes of the n-shaped fixing blocks to be sleeved on the outer sides of the cuboid-shaped fixing blocks, one side of the n-shaped fixing blocks close to the power battery 300 is in contact with one side of the battery fixing frame 200 close to the n-shaped fixing blocks, and the n-shaped fixing blocks can limit the cuboid-shaped fixing blocks to move in the X direction, the Y direction and the Z direction, so that the battery fixing frame 200 is locked. When the power battery 300 needs to be replaced, the driving device drives the fixing block in the shape of a Chinese character 'ji' to move reversely, and the battery fixing frame 200 is unlocked.

Or the first fixing element may be a cuboid fixing block, a blind hole extending in the Y direction toward the power battery 300 is disposed on one side of the cuboid fixing block away from the power battery 300, the second fixing element may include a slider and a fixing rod, the slider may slide in the Y direction under the driving of the driving device, and the fixing rod is disposed on one side of the slider toward the battery fixing frame 200 and extends in the Y direction. After the battery replacing equipment pushes the battery fixing frame 200 provided with the power battery 300 to the mounting frame 100, the blind hole is aligned with the fixing rod, the driving device drives the sliding block to move, the fixing rod is further driven to be inserted into the blind hole, fixing of the cuboid-shaped fixing block is completed, and then locking of the battery fixing frame 200 is completed. When the power battery 300 needs to be replaced, the driving device drives the sliding block to reversely slide, so that the fixing rod is separated from the blind hole, and the battery fixing frame 200 can be unlocked.

The utility model also provides a power battery system, power battery system include frame 700, power battery 300 and as above battery locking device.

The frames 700 may be arranged in layers and each layer may be provided with a plurality of mounting locations, for example, referring to fig. 1, the frames 700 are arranged in three layers and each layer is arranged in two rows along the X direction and two rows along the Y direction. Of course, the arrangement and number of the installation positions are only exemplary, and do not limit the protection scope of the present application, and the number and arrangement of the installation positions may be set arbitrarily as long as the battery replacement operation can be implemented.

A battery locking device is arranged at each mounting position of the frame 700, the mounting rack 100 of the battery locking device is connected with the frame 700, and a locking component of the battery locking device is used for locking the battery holder with the power battery 300 mounted on the mounting rack 100 and releasing the battery holder with the power battery 300 mounted on the mounting rack 100.

Because the utility model provides a power battery system has as above battery locking device, consequently, has equally with as above the same advantage.

Further, the present invention also provides a working machine, which is an electric machine, and can be, but not limited to, an electric excavator, an electric crane, an electric commercial vehicle, etc., since the working machine has the battery locking device or the power battery system as described above, the same advantages as described above can be obtained.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A battery locking device, comprising:

a mounting frame (100);

the battery fixing frame (200), wherein two sides of the battery fixing frame (200) are respectively provided with at least one first fixing piece;

the locking assemblies are arranged at positions of the mounting frame (100) corresponding to the first fixing pieces, each locking assembly comprises at least one second fixing piece and a driving device, the second fixing pieces are connected with the mounting frame (100) in a sliding mode, and the driving device is used for driving the second fixing pieces to move towards or away from the first fixing pieces;

when the second fixing piece moves towards the direction close to the first fixing piece, the second fixing piece fixes the first fixing piece on the mounting rack (100), and when the second fixing piece moves towards the direction far away from the first fixing piece, the second fixing piece releases the first fixing piece.

2. The battery locking device according to claim 1, wherein the first fixing member is a fixing plate (400), the second fixing member is a locking hook (500), a hook handle (520) of the locking hook (500) is slidably connected with the mounting frame (100), and when the locking hook (500) moves towards the fixing plate (400), a hook body (510) of the locking hook (500) is used for pressing the fixing plate (400) between the hook body (510) and the mounting frame (100).

3. The battery locking device according to claim 2, wherein a side of the fixing plate (400) away from the mounting bracket (100) is provided with a guide surface (410) and a first pressing surface (420), a distance between the guide surface (410) and the mounting bracket (100) gradually increases in a direction away from the latch hook (500), the first pressing surface (420) is provided at an end of the guide surface (410) away from the latch hook (500), a side of the hook body (510) close to the mounting bracket (100) is provided with a second pressing surface (511), a distance between the second pressing surface (511) and the mounting bracket (100) is smaller than a distance between the first pressing surface (420) and the mounting bracket (100), and a distance between the second pressing surface (511) and the mounting bracket (100) is larger than a distance between an end of the guide surface (410) close to the latch hook (500) and the mounting bracket (100).

4. The battery locking device according to claim 3, wherein a blocking surface (512) is further disposed on a side of the hook body (510) close to the mounting frame (100), the blocking surface (512) is disposed at an end of the second pressing surface (511) far away from the fixing plate (400), and the blocking surface (512) is configured to be attached to the guide surface (410).

5. The battery locking device according to claim 2, wherein sliding grooves (521) extending along the sliding direction are formed in the hook handle (520) of the locking hook (500) along two sides perpendicular to the sliding direction, a sliding rail (110) corresponding to the sliding grooves (521) is arranged on the mounting frame (100), the sliding grooves (521) are connected with the sliding rail (110) in a matched manner, and the sliding rail (110) and the sliding grooves (521) are used for limiting the locking hook (500) to move along the direction perpendicular to the sliding direction.

6. The battery locking device according to claim 5, characterized in that the slide rail (110) is provided with a mounting groove (130), and the mounting groove (130) is used for the hook handle (520) to pass through.

7. The battery locking device according to any one of claims 2 to 6, wherein the actuating device comprises a linear moving device (610), the hook handle (520) is connected with a moving end of the linear moving device (610), and the linear moving device (610) is used for actuating the locking hook (500) to move.

8. The battery locking device according to any one of claims 2 to 6, wherein one of a side of the fixing plate (400) adjacent to the hook (510) and a side of the mounting bracket (100) adjacent to the hook (510) is provided with a guide positioning pin (140), and the other is provided with a positioning groove (430), and the guide positioning pin (140) and the positioning groove (430) are used for guiding the fixing plate (400) to move to the locking position.

9. A power battery system, characterized in that, comprises a frame (700), a power battery (300) and a battery locking device according to any one of claims 1 to 8, wherein a plurality of said battery locking devices are arranged on said frame (700), a mounting frame (100) of said battery locking devices is arranged on said frame (700), and a locking component of said battery locking devices is used for locking said battery holder (200) with said power battery (300) mounted thereon on said mounting frame (100) or releasing said battery holder (200) with said power battery (300) mounted thereon from said mounting frame (100).

10. A working machine comprising a battery locking device according to any one of claims 1-8 or comprising a power battery system according to claim 9.

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