CN219382257U - Battery fixing device and heavy-duty truck power exchanging device - Google Patents

Abstract

The disclosure provides a battery fixing device and a heavy-duty card power conversion device, and relates to the technical field of power conversion equipment. Comprises an installation seat which is detachably arranged on a vehicle body of the heavy truck; the battery base is arranged on the mounting base and used for bearing the battery box; the mounting plates are arranged on the mounting seats and are positioned on two sides of the battery base; the guide mechanism comprises a sliding rail and a sliding groove, the sliding rail is arranged on the battery box, the sliding groove is arranged on the mounting plate, and the sliding rail is in sliding connection with the sliding groove; and the locking structure is arranged in the sliding groove and used for limiting the moving distance of the battery box so that the battery box moves to the position right above the battery box base. The utility model discloses a be convenient for with battery box and battery base alignment, can improve the efficiency that the heavy truck traded the electricity.

Description

Battery fixing device and heavy-duty truck power exchanging device

Technical Field

The disclosure relates to the technical field of battery replacement equipment, in particular to a battery fixing device and a heavy-duty truck battery replacement device.

Background

With the development of technology and the increasing importance of people on environmental pollution and resource problems, new energy automobiles are rapidly developed in recent years and widely applied to various fields. The new energy automobile has the advantages that the battery has the endurance limit, when the electric quantity of the battery is insufficient, the battery needs to be charged in time, but the charging time of the battery is long and the special charging pile is needed, so that the battery replacement mode is more efficient compared with the charging mode.

An electric heavy truck (hereinafter referred to as heavy truck) generally requires a large kinetic energy to drive, so a large battery box is used. At present, a heavy truck generally adopts a side power conversion mode, specifically, after the heavy truck is stopped at a designated position of a power conversion station, a battery box is lifted to the upper side of a battery base through a robot arranged on a ground cabinet, and the battery box is placed on the battery base after alignment.

However, because the battery box of the heavy card is large, when the parking position of the heavy card is deviated, the alignment of the battery box and the battery base is difficult, and the power conversion efficiency of the heavy card is reduced.

Disclosure of Invention

The present disclosure aims to overcome at least one of the disadvantages of the related art, and provide a battery fixing device and a heavy-duty power conversion device, which are convenient for aligning a battery box with a battery base, and improve the power conversion efficiency of the heavy-duty power conversion device.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.

According to one aspect of the present disclosure, there is provided a battery fixing device including:

the mounting seat is detachably arranged on the vehicle body of the heavy truck;

the battery base is arranged on the mounting seat and used for bearing a battery box;

the mounting plate is arranged on the mounting seat and positioned on two sides of the battery base;

the guide mechanism comprises a sliding rail and a sliding groove, the sliding rail is arranged on the battery box, the sliding groove is arranged on the mounting plate, and the sliding rail is in sliding connection with the sliding groove;

and the locking mechanism is arranged in the sliding groove and used for limiting the moving distance of the battery box so that the battery box moves to the position right above the battery box base.

In an exemplary embodiment of the disclosure, the sliding rail is provided with a limit groove, and the bottom of the sliding groove is provided with a containing groove; the locking mechanism includes:

the limiting block is clamped in the limiting groove;

the elastic piece is positioned in the accommodating groove, is connected with the limiting block and is used for driving the limiting block to pop up the limiting groove.

In one exemplary embodiment of the present disclosure, one end of the chute is an open end and the other end of the chute is a closed end.

In an exemplary embodiment of the present disclosure, a side of the stopper facing the open end of the chute is processed with a slope.

In an exemplary embodiment of the present disclosure, the length of the stopper is equal to the width of the chute.

In an exemplary embodiment of the present disclosure, a plug post is provided at the top of the battery base, and a plug groove adapted to the plug post is provided at the bottom of the battery box.

In an exemplary embodiment of the present disclosure, a width of the sliding groove is greater than or equal to a sum of a thickness of the sliding rail and a height of the insertion post.

In an exemplary embodiment of the present disclosure, the slide rail is detachably connected with the battery box.

In an exemplary embodiment of the present disclosure, the apparatus further comprises:

the screw penetrates through the mounting plate;

the first motor is fixedly arranged on the mounting seat and used for driving the screw rod to rotate so as to drive the mounting plate to move.

The disclosure also provides a heavy-duty card power conversion device, comprising the battery fixing device described in any one of the above; and

and the lifting frame is used for transferring the battery box to the upper part of the battery base.

According to the technical scheme, the utility model has at least one of the following advantages and positive effects:

according to the battery fixing device and the heavy-duty truck power exchanging device provided by the disclosed example embodiment, the battery box cannot slide leftwards and rightwards when moving above the battery base through the sliding rail arranged on the battery box and the sliding groove arranged on the mounting plate, so that the stability of the battery box is improved. The sliding distance of the battery box is limited through the locking mechanism, so that the position of the battery box is limited, the battery box can slide to the position right above the battery base, the battery box and the battery base are aligned conveniently, and the power changing efficiency of the heavy truck is greatly improved.

In addition, the mounting seat is detachably connected to the heavy truck body, so that different truck types can be adapted, and the universality of the battery fixing device is improved. The battery boxes with different sizes are limited by the battery base and the mounting plate which can move towards the directions close to each other or away from each other, so that the universality of the battery fixing device is further improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic structural diagram of a heavy-duty card power conversion device according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a heavy-duty card power conversion device according to an embodiment of the present disclosure at a first viewing angle.

Fig. 3 is a schematic cross-sectional structure of the battery box of the present disclosure.

Fig. 4 is an enlarged view of a portion a in fig. 3.

The structural reference numerals in the drawings are described as follows:

1. a vehicle body; 11. a mounting base; 111. a T-shaped groove; 2. a battery base; 21. a plug-in column; 3. a mounting plate; 31. a T-shaped block; 32. a screw; 33. a first motor; 4. a battery box; 41. a connecting pipe is inserted; 42. a plug-in groove; 5. a guide mechanism; 51. a chute; 511. a receiving groove; 52. a slide rail; 521. a limit groove; 6. a locking mechanism; 61. a limiting block; 62. an elastic member; 7. lifting the frame; 71. a rotating base; 72. a mobile station; 73. a second motor; 74. a distance measuring instrument.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples in the drawings. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," "at least one," and "the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first" and "second" are used merely as labels, and do not limit the number of their objects.

The embodiment of the disclosure provides a battery fixing device, which can align a battery box to be replaced with a battery base in a moving process through a guide mechanism and a locking mechanism, and then install and fix the battery box.

As shown in fig. 1 to 4, the battery fixing device includes a mount 11, a battery base 2, a mount plate 3, a guide mechanism 5, and a lock mechanism 6, wherein:

the mount pad 11 demountable installation is on the automobile body 1 of heavy truck, and battery base 2 demountable installation is on mount pad 11, and battery base 2 is used for bearing, installing fixed battery case 4, is equipped with the electric wire interface between intercommunication battery case 4 and the automobile body 1 of heavy truck on the battery base 2 for provide the electric energy for the heavy truck. The battery box 4 may be a group of batteries composed of a plurality of single batteries, a box body, a battery management system, an installation structure member and the like.

The mount 11 in the embodiment of the present disclosure is detachably connected with the vehicle body 1 of the heavy truck, and the mount 11 can be adapted to different heavy truck types. Specifically, the battery boxes 4 required for vehicles of different models are not uniform in size, resulting in different corresponding battery bases 2. Therefore, the battery base 2 and the mounting seat 11 are detachably mounted, and when the heavy truck is used for replacing electricity, the battery base 2 which is matched with the mounting seat 11 of the vehicle of different models can be mounted, so that the universality of the battery fixing device is improved, and the battery box 4 can be conveniently aligned in the replacement process.

The mounting plate 3 is arranged on the mounting seat 11 and is positioned on two sides of the battery base 2. The guiding mechanism 5 includes a sliding groove 51 and a sliding rail 52, which are respectively arranged on the battery box 4 and the mounting plate 3, and are used for limiting the moving direction of the battery box 4 above the battery base 2. The locking mechanism 6 may be disposed on a moving path of the guide mechanism 5, and in the embodiment of the present disclosure, the locking mechanism 6 may be disposed in the chute 51 for restricting a moving position of the battery box 4. Therefore, the movement position of the battery box 4 can be defined directly above the battery base 2 by the guide mechanism 5 together with the lock mechanism 6.

The following describes each part of the battery fixing device in detail:

as shown in fig. 1 to 4, the mounting seat 11 is mounted on the heavy truck body 1, and the shape of the mounting seat 11 can be specifically set according to the shape of the heavy truck body 1, so that the connection between the mounting seat and the body 1 can be suitable for different vehicle types. The material of the mounting seat 11 may be a material with a strong supporting force such as metal or alloy, and this is not limited in the present disclosure.

In some exemplary embodiments, the mount 11 may be detachably connected to the vehicle body 1 by bolting, riveting, or the like. It will be appreciated that the location of the attachment fixture on the mounting base 11 is not solely fixed in order to facilitate the ability of the mounting base 11 to accommodate heavy trucks of different vehicle types. In addition, the manner of detachable connection between the mounting seat 11 and the battery base 2 can be riveting, clamping, and the like, so that the convenience and firmness of mounting the battery base 2 can be improved, and the battery box 4 and the vehicle body 1 can be ensured to be electrically communicated through the battery base 2, which is not limited in the disclosure.

Further, as shown in fig. 3 and 4, the mounting base 11 is provided with two mounting plates 3, and the mounting plates 3 are respectively located at two sides of the movement direction of the battery box 4. Illustratively, the mounting plate 3 is slidably disposed on the mounting base 11, and the plane of the mounting plate 3 is perpendicular to the plane of the mounting base 11, that is, the mounting plate 3 can slide on the mounting base 11 and always remain perpendicular to the mounting base 11.

The guiding mechanism 5 comprises a sliding groove 51 and a sliding rail 52, the sliding groove 51 is fixedly arranged on the mounting plates 3, the sliding grooves 51 are arranged on the two mounting plates 3, and the notch of the two sliding grooves 51 are opposite. The cross section of the chute 51 may be U-shaped, and the slide rails 52 are provided on two opposite side walls of the battery case 4. The length direction of the slide groove 51 is the same as the movement direction of the battery case 4, and the length direction of the slide rail 52 coincides with the length direction of the slide groove 51 to restrict the movement direction of the battery case 4 above the battery base 2 by the slide groove 51 and the slide rail 52.

The slide grooves 51 and the slide rails 52 may be made of metal or a material having low conductivity such as an alloy or a composite wood board. The slide rail 52 generates static electricity by friction with each other when sliding in the slide groove 51, and the use of a material having low conductivity can reduce the generation of static electricity, thereby improving the safety of the battery fixing device.

When the battery box 4 is mounted on the battery base 2, the sliding rails 52 on both sides of the battery box 4 can be respectively slid into the two sliding grooves 51 to limit the moving direction of the battery box 4. For example, when the battery box 4 moves above the battery base 2, the battery box 4 is allowed to move only along the length direction of the chute 51 without being shifted left and right.

In the embodiment of the present disclosure, the slide rail 52 is detachably fixed to the battery box 4. For example, in the process of replacing electricity, the sliding rail 52 can be installed on the battery boxes 4 to be replaced, after the battery boxes 4 are replaced, the sliding rail 52 is detached for replacing other battery boxes 4, and the sliding rail 52 is not required to be installed on each battery box 4, so that the cost can be effectively reduced. The manner of detachable connection between the slide rail 52 and the battery box 4 may be plugging, bolting, etc., which is not particularly limited in the present disclosure, as long as the installation is convenient and the operation cost is reduced.

It should be noted that, one end of the sliding groove 51 is an open end, the other end is a closed end, and the width of the sliding groove 51 is larger than the thickness of the sliding rail 52, so that the sliding rail 52 can slide up and down in the sliding groove 51.

For example, when the battery box is replaced, the sliding rail 52 can be slid in from the open end of the sliding slot 51 by moving the battery box 4, so that the sliding rail 52 can slide into the sliding slot 51 more conveniently. Moreover, after the sliding rail 52 slides into the sliding groove 51, the sliding rail 52 has a movable space in the vertical direction, so that the sliding rail 52 does not generate larger friction with the side wall of the sliding groove 51 when sliding in the sliding groove 51, thereby avoiding the condition that the connection state between the battery base 2 and the mounting seat 11 and between the mounting seat 11 and the vehicle body 1 is damaged, and simultaneously effectively reducing the risk of generating static electricity.

In addition, the closed end of the sliding groove 51 can be used for limiting the sliding rail 52, so that the sliding rail 52 is prevented from sliding out of the sliding groove 51.

As shown in fig. 3 and 4, the lock mechanism 6 includes a stopper 61 and an elastic member 62. For example, a receiving groove 511 is formed at the bottom of the chute 51, an elastic member 62 is disposed in the receiving groove 511, a stopper 61 is inserted into the receiving groove 511, and the elastic member 62 is connected to the stopper 61 to drive the stopper 61 to pop up or be completely received in the receiving groove 511.

In one embodiment, the elastic member 62 may be a spring, one end of the spring is fixedly connected to the bottom of the accommodating groove 511, and the other end of the spring is fixedly connected to the stopper 61. For example, when the stopper 61 is pressed, the spring is compressed, the stopper 61 may be completely pressed into the accommodating groove 511, and when the pressure applied to the stopper 61 is removed, the compressed spring is restored, and the stopper 61 may be ejected out of the accommodating groove 511 under the elastic force of the spring.

The side of the limiting block 61 facing the open end of the chute 51 is processed with an inclined plane, and meanwhile, the sliding rail 52 is provided with a limiting groove 521. Specifically, when the slide rail 52 slides in the slide groove 51, after the slide rail 52 abuts against the inclined surface of the stopper 61, the slide rail 52 always abuts against the inclined surface of the stopper 61 as the slide rail 52 continues to slide, and the slide rail 52 gradually presses the stopper 61 into the accommodating groove 511. When the end of the slide rail 52, which is slid into the end of the slide groove 51, slides over the stopper 61, the stopper 61 can completely enter the accommodating groove 511, and at this time, the spring 62 is compressed. When the end of the slide rail 52, which is slid into the slide groove 51 first, abuts against the closed end of the slide groove 51, the limiting groove 521 is aligned with the accommodating groove 511, the pressure applied to the limiting block 61 disappears, and under the action of the spring 62, the limiting block 61 automatically pops up and is inserted into the limiting groove 521, so that the slide rail 52 can not slide out of the slide groove 51 any more.

After the slide rail 52 slides into the slide groove 51, when the end of the slide rail 52 on the side of the slide groove 51 is abutted against the closed end of the slide groove 51, the battery box 4 is positioned right above the battery base 2, the closed end of the slide groove 51 limits the battery box 4 from sliding forwards, the limiting block 61 is inserted into the limiting groove 521 to limit the battery box 4 from sliding backwards, and therefore the position of the battery box 4 in the horizontal direction is fixed and positioned right above the battery base 2, and finally the alignment of the battery box 4 and the battery base 2 is completed.

As shown in fig. 3, the battery base 2 is fixed with a plug-in post 21, and a plug-in groove 42 is formed at the bottom of the battery box 4, and the plug-in post 21 and the plug-in groove 42 are mutually matched. When the battery box 4 is located right above the battery base 2, the insertion groove 42 is also located right above the insertion post 21, and after the battery box 4 is aligned with the battery base 2 by the guide mechanism 5 and the locking mechanism 6, the battery box 4 moves downward so that the insertion post 21 is inserted into the insertion groove 42, and the position of the battery box 4 is fixed.

In one embodiment, the width of the sliding groove 51 may be set to be greater than or equal to the sum of the thickness of the sliding rail 52 and the height of the plug post 21. For example, when the battery box 4 is replaced, the battery box 4 is moved to above the battery base 2 by transferring the battery box 4 saturated in the battery replacing station, and the slide rail 52 is slid into the slide groove 51, and at this time, the battery box 4 slides above the battery base 2. During the sliding process of the battery box 4, after the limiting block 61 slides into the limiting groove 521, the battery box 4 can slide right above the battery base 2, that is, the alignment of the battery box 4 and the battery base 2 is achieved.

Since the width of the sliding groove 51 is greater than or equal to the sum of the thickness of the sliding rail 52 and the height of the plug-in post 21, the plug-in post 21 cannot block the battery box 4 from sliding in the sliding process of the battery box 4, and normal installation of the battery box 4 is ensured. Then, the battery box 4 continues to move downward, and finally the fixed mounting of the battery box 4 is completed.

The limiting block 61 may be transversely disposed in the chute 51, and the height of the limiting block 61 is equal to the width of the chute 51. During the sliding process of the sliding rail 52, the sliding of the sliding rail 52 at any height in the sliding groove 51 can press down the limiting block 61. When the limiting block 61 enters the limiting groove 521, after the battery box 4 is aligned with the battery base 2, the limiting block 61 can be always clamped in the limiting groove 521 to limit the battery box 4 in the process that the battery box 4 continues to move downwards, so that the battery box 4 cannot move in the horizontal direction. After the plug post 21 is inserted into the plug groove 42, the battery box 4 and the battery base 2 can be fixedly mounted.

As shown in fig. 2, the mounting seat 11 is provided with a T-shaped groove 111, the mounting plate 3 is provided with a T-shaped block 31 in a matching manner, and the T-shaped block 31 can slide in the T-shaped groove 111.

Accordingly, the two mounting plates 3 can slide along the length direction of the T-shaped groove 111. For example, the two mounting plates 3 can slide in directions approaching or separating from each other, so that the battery boxes 4 with different models and sizes can be conveniently fixed.

When the battery box 4 to be replaced is fixed on the battery base 2, the two mounting plates 3 can be moved in the direction away from each other, so that the slide rail 52 is separated from the slide groove 51, and the stopper 61 is also separated from the stopper groove 521, at this time, the position of the battery box 4 is not limited any more, and the battery box 4 can be taken out, so that the battery fixing device in the embodiment of the disclosure is also convenient for removing the old battery on the heavy card.

Furthermore, a driving structure for driving the two mounting plates 3 to move relatively can be arranged on the mounting seat 11, and the driving structure can be a hydraulic pushing structure or other mechanical driving structures, and only the two mounting plates 3 can be driven to move in a direction away from or close to each other.

In the disclosed embodiment, the driving structure includes a screw 32 and a first motor 33. The screw rod 32 runs through two mounting plates 3 and is in threaded connection with the mounting plates 3, threads are machined at two ends of the screw rod 32, the directions of the threads at the two ends are opposite, and the first motor 33 is fixed on the mounting plates 3 and can be used for driving the screw rod 32 to rotate.

When the first motor 33 works, the screw rod 32 can be driven to rotate, and the screw rod 32 rotates to drive the two mounting plates 3 to move towards or away from each other. The distance between the two mounting plates 3 is adjusted by driving the first motor 33 to fit the battery boxes 4 of different model sizes. When the battery box 4 on the vehicle body 1 needs to be removed, the first motor 33 is driven to move the two mounting plates 3 in the direction away from each other, so that the limiting block 61 can be separated from the limiting groove 521, the sliding rail 52 is separated from the sliding groove 51, and the battery box 4 is convenient to remove.

The embodiment of the disclosure also discloses a heavy truck power conversion device, including battery fixing device and lifting frame 7, transport, go up and down through the battery box 4 in the lifting frame 7 to the power conversion station, also can transport old battery box 4 on the heavy truck to the power conversion station in order to charge, maintain etc.. When the battery box 4 is replaced, the lifting frame 7 moves the charged battery box 4 to the position above the battery base 2 of the heavy truck, and the battery box 4 is fixed on the mounting seat 11 through the battery fixing device. The structure of the battery fixing device may refer to the above embodiment of the battery fixing device, and will not be described herein.

As shown in fig. 1 and 2, the bottom of the lifting frame 7 is provided with a swivel base 71 and a moving table 72, the lifting frame 7 is provided on the swivel base 71, and the lifting arms of the lifting frame 7 can move up and down. The mobile station 72 is arranged on the ground rail of the power exchange station, and the mobile station 72 drives the lifting frame 7, so that the lifting frame 7 can move the battery box 4 and the old battery of the heavy truck in the power exchange station. Meanwhile, a second motor 73 is arranged on the moving table 72 and is used for driving the rotating base 71 to rotate and driving the lifting arms of the lifting frame 7 to rotate so as to adjust the included angle between the lifting frame 7 and the heavy truck body 1.

In some embodiments of the present disclosure, in the heavy truck power conversion process, an included angle between the lifting frame 7 and the heavy truck body 1 can be monitored and adjusted, and the lifting frame 7 and the heavy truck body 1 are kept parallel by rotating the rotating base 71, so that the battery box 4 is convenient to replace.

In this disclosed embodiment, the lifting frame 7 both sides all are provided with distancer 74, still are provided with data processing module on the mobile station 72, and distancer 74 can be used for detecting the lifting frame 7 and the distance between automobile body 1, and two distancer 74 can be with the data transmission that detects to data processing module, and data processing module is through handling two sets of data and data difference thereof, can obtain the contained angle that lifting frame 7 exists between automobile body 1.

For example, after the car body 1 is stopped at the power change position, the distance between the car body 1 and the lifting frame 7 is detected by the distance measuring devices 74 on two sides of the lifting frame 7, the included angle between the length direction of the car body 1 and the lifting frame 7 is calculated by the data processing module, the obtained data is transmitted to the second motor 73, and the second motor 73 is started to control the lifting frame 7 to rotate by a corresponding angle, so that the lifting frame 7 rotates to a position parallel to the length direction of the car body 1, and the battery box 4 can be conveniently and accurately moved above the battery base 2.

As shown in fig. 1 and 2, the support portions 41 are disposed on both sides of the battery box 4, and the support portions 41 may be a cannula structure that is disposed in cooperation with the lifting arms of the lifting frame 7, or may be other support structures, which is not limited in this disclosure. The supporting portion 41 and the battery box 4 may be integrally formed, or may be fixed after being formed respectively, which is not limited in the disclosure, and the lifting frame 7 may lift and transfer the battery box 4, so that a person skilled in the art may select according to actual requirements.

In the embodiment of the disclosure, the supporting portion 41 of the lifting arm may be an insertion tube fixedly disposed on a side wall of the battery case 4, the insertion tube and the sliding rail 52 are disposed on the same side, and a length direction of the insertion tube is consistent with a moving direction of the battery case 4. The insertion tube may be a square tube or a round tube, and the shape of the insertion tube is matched with the shape of the lifting arm of the lifting frame 7, which is not limited herein. When the battery box 4 needs to be moved, the lifting arms of the lifting frame 7 are inserted into corresponding insertion pipes, and the lifting frame 7 is lifted or moved, so that the position of the battery box 4 is adjusted.

The pipe diameter of the insertion pipe is larger than the maximum width of the lifting arm. When the battery box 4 is moved, the lifting arms of the lifting frame 7 can be conveniently inserted into the insertion pipes, and when the lifting arms are pulled out, the space for moving the lifting arms exists in the insertion pipes, so that the height of the lifting arms can be reduced. Moreover, the lifting arm cannot generate friction with the battery box 4 in the extraction process, so that the risk of damaging the stability of the battery box 4 by the lifting arm can be effectively reduced.

The implementation principle of the heavy-duty truck power conversion device disclosed by the utility model is as follows: the mounting seat 11 is mounted on the vehicle body 1 of the heavy truck, the position of the lifting frame 7 is adjusted by the range finder 74 and the second motor 73, the lifting frame 7 is parallel to the vehicle body 1, the battery box 4 is transported by the lifting frame 7, the sliding rail 52 on the side edge of the battery box 4 slides into the sliding groove 51, the position of the battery box 4 in the horizontal direction is fixed by the locking mechanism 6, then the battery box 4 is controlled to move downwards, and the inserting column 21 is inserted into the inserting groove 42, so that the fixing of the battery box 4 is completed.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A battery fixing device, characterized by comprising:

the mounting seat is detachably arranged on the vehicle body of the heavy truck;

the battery base is arranged on the mounting seat and used for bearing a battery box;

the mounting plate is arranged on the mounting seat and positioned on two sides of the battery base;

the guide mechanism comprises a sliding rail and a sliding groove, the sliding rail is arranged on the battery box, the sliding groove is arranged on the mounting plate, and the sliding rail is in sliding connection with the sliding groove;

and the locking mechanism is arranged in the sliding groove and used for limiting the moving distance of the battery box so that the battery box moves to the position right above the battery box base.

2. The battery fixing device according to claim 1, wherein the sliding rail is provided with a limit groove, and the bottom of the sliding groove is provided with a containing groove; the locking mechanism includes:

the limiting block is clamped in the limiting groove;

the elastic piece is positioned in the accommodating groove, is connected with the limiting block and is used for driving the limiting block to pop up the limiting groove.

3. The battery securing device according to any one of claims 1 or 2, wherein one end of the chute is an open end and the other end of the chute is a closed end.

4. The battery fixing device according to claim 2, wherein a side of the stopper facing the open end of the chute is formed with a slope.

5. The battery securing device of claim 2, wherein the length of the stopper is equal to the width of the chute.

6. The battery fixing device according to claim 1, wherein a plug post is provided at the top of the battery base, and a plug groove adapted to the plug post is provided at the bottom of the battery box.

7. The battery holder of claim 6, wherein the width of the chute is greater than or equal to the sum of the thickness of the slide rail and the height of the plug post.

8. The battery securing device of claim 1, wherein the slide rail is removably connected to the battery compartment.

9. The battery securing device of claim 1, wherein the device further comprises:

the screw penetrates through the mounting plate;

the first motor is fixedly arranged on the mounting seat and used for driving the screw rod to rotate so as to drive the mounting plate to move.

10. A heavy truck power conversion device, characterized by comprising the battery fixing device according to any one of claims 1 to 9; and

and the lifting frame is used for transferring the battery box to the upper part of the battery base.