Battery pack suspension device and working machine

Abstract

The utility model provides a battery pack suspension device and an operating machine, the battery pack suspension device comprises a connecting cylinder, the middle part of which is provided with a guide hole; the connecting columns and the connecting cylinders are arranged in a one-to-one correspondence manner; the shape of the connecting column is matched with that of the guide hole; the guide column is arranged at one end, which enters the connecting cylinder before entering the connecting cylinder, of the connecting column; one of the connecting column and the connecting cylinder is arranged on a battery, and the other one is arranged on a vehicle end battery replacing support. According to the battery pack suspension device and the operation machine, one of the connecting columns and the connecting cylinders is arranged on the battery, the other one of the connecting columns and the connecting cylinders is arranged on the vehicle end battery replacing support, the guide holes are formed in the middles of the connecting cylinders, the connecting columns and the connecting cylinders are arranged in a one-to-one correspondence mode, and the guide columns are arranged at the ends, before entering the connecting cylinders, of the connecting columns; coarse positioning and floating guiding of the battery during battery replacement can be realized; and the shape of the connecting column is matched with that of the guide hole, so that accurate positioning of the battery can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack suspension devices, and in particular to a battery pack suspension device and an operating machine. Background Art

[0002] New energy commercial vehicles are mainly divided into several categories, including hybrid electric vehicles, pure electric vehicles, fuel cell electric vehicles, and extended-range electric vehicles. Their design and technical features are mainly centered around environmental protection, energy saving, low carbon and sustainable development, and they have lower emissions and higher energy efficiency than traditional fuel vehicles.

[0003] In the prior art, electric commercial vehicles usually use a side-mounted battery replacement system, which uses external force to slide the battery pack from the side into the battery replacement bracket of the vehicle frame.

[0004] However, since it is difficult to ensure the consistency of the battery position on the vehicle, the battery position may change during the battery replacement process, making it difficult to locate the battery on the vehicle side. Utility Model Content

[0005] The utility model provides a battery pack suspension device and an operating machine, which are used to solve the defect that it is difficult to achieve battery positioning in the prior art, and can achieve rough positioning and floating guidance of the battery during battery replacement.

[0006] The utility model provides a battery pack suspension device, comprising:

[0007] A connecting tube, with a guide hole in the middle;

[0008] A connecting column, wherein the connecting column and the connecting tube are arranged one by one; and the shape of the connecting column is adapted to the guide hole;

[0009] A guide post, disposed at one end of the connecting post before entering the connecting tube;

[0010] One of the connecting column and the connecting tube is arranged on the battery, and the other is arranged on the vehicle-end battery replacement bracket.

[0011] According to a battery pack suspension device provided by the utility model, it also includes a locking mechanism, and the locking mechanism is used to lock the connecting cylinder and the connecting column so that the connecting cylinder and the connecting column are locked and fixed.

[0012] According to a battery pack suspension device provided by the utility model, the connecting cylinder is provided with at least one first positioning hole, the guide column is provided with at least one first positioning groove, and the locking mechanism includes:

[0013] A first linear drive mechanism is disposed on the battery;

[0014] A first positioning rod is connected to the first linear drive mechanism, and the first positioning rod passes through the first positioning hole and the first positioning groove at the same time.

[0015] According to a battery pack suspension device provided by the utility model, the first linear drive mechanism includes one of an electric cylinder, a pneumatic cylinder, and a hydraulic cylinder.

[0016] According to a battery pack suspension device provided by the utility model, the locking mechanism further includes:

[0017] A reset member, which is sleeved on the outer circumference of the positioning rod, and the reset member is used to reset the first positioning rod after the battery replacement is completed;

[0018] A support, wherein the first positioning rod passes through the support; one end of the reset member abuts against the support, and the other end is connected to the first positioning rod.

[0019] According to a battery pack suspension device provided by the utility model, the first positioning groove is adapted to the shape of the first positioning rod.

[0020] According to a battery pack suspension device provided by the utility model, the connecting cylinder is provided with at least one second positioning hole, the connecting column is provided with at least one second positioning groove, and the locking mechanism includes:

[0021] A second linear drive mechanism is arranged on the vehicle-end battery replacement bracket;

[0022] A second positioning rod is connected to the second linear drive mechanism, and the second positioning rod passes through the second positioning hole and the second positioning groove at the same time.

[0023] According to a battery pack suspension device provided by the utility model, the extension length of the second positioning groove is smaller than the diameter of the connecting column.

[0024] According to a battery pack suspension device provided by the utility model, at least two of the connecting tubes and the connecting columns are provided.

[0025] The utility model also provides an operating machine, comprising an operating machine body and a battery pack hanging device, wherein the battery pack hanging device is a battery pack hanging device as described in any one of the above items, and the battery pack hanging device is arranged on the operating machine body.

[0026] The battery pack suspension device and operating machinery provided by the utility model are arranged on the battery through a connecting column and a connecting tube, one of which is arranged on the battery, and the other is arranged on the battery replacement bracket at the vehicle end. A guide hole is opened in the middle of the connecting tube. The connecting column and the connecting tube are arranged in a one-to-one correspondence. The guide column is arranged at one end of the connecting column before entering the connecting tube, which can realize the rough positioning and floating guidance of the battery during battery replacement; and the shape of the connecting column is adapted to the guide hole, which can realize the precise positioning of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the installation state of the battery pack suspension device before battery replacement in one embodiment of the utility model.

[0029] Figure 2 It is a schematic diagram of the installation state of the battery pack suspension device after battery replacement in one embodiment of the utility model.

[0030] Figure 3 It is a structural schematic diagram of a locking mechanism of a battery pack suspension device provided in one embodiment of the utility model.

[0031] Figure 4 It is a schematic structural diagram of another locking mechanism of a battery pack suspension device provided in one embodiment of the utility model before being locked.

[0032] Figure 5 It is a schematic diagram of the structure of a battery pack suspension device provided in one embodiment of the utility model after another locking mechanism is locked.

[0033] Reference numerals:

[0034] 100. Battery; 200. Vehicle-end battery replacement bracket; 1. Connecting tube; 2. Guide hole; 3. Connecting column; 4. Guide column; 5. Locking mechanism; 51. First positioning rod; 52. Reset member; 53. Support; 54. Second linear drive mechanism; 55. Second positioning rod; 6. First positioning groove; 7. Second positioning hole; 8. Second positioning groove. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Combine the following Figure 1-Figure 5 A battery pack suspension device according to an embodiment of the utility model is described.

[0037] like Figure 1 As shown, an embodiment of the utility model provides a battery pack suspension device, including a connecting cylinder 1, a connecting column 3 and a guide column 4.

[0038] Among them, one of the connecting column 3 and the connecting cylinder 1 is arranged on the battery 100, and the other is arranged on the vehicle-end battery swap bracket 200. It can be understood that when the connecting cylinder 1 is arranged on the battery 100, the connecting column 3 is arranged on the vehicle-end battery swap bracket 200. When the connecting cylinder 1 is arranged on the vehicle-end battery swap bracket 200, the connecting column 3 is arranged on the battery 100. Moreover, the connecting cylinder 1 can be arranged on the top of the battery 100, on both sides of the battery 100, or on the bottom of the battery.

[0039] A guide hole 2 is provided in the middle of the connecting tube 1; the connecting column 3 is arranged in a one-to-one correspondence with the connecting tube 1, that is, one connecting column 3 corresponds to one connecting tube 1. The guide column 4 is arranged at the end of the connecting column 3 before entering the connecting tube 1. The guide column 4 plays a guiding role before the connecting column 3 enters the connecting tube 1, ensuring that the connecting column 3 can be aligned with the guide hole 2. The setting of the guide column 4 can realize the rough positioning and floating guidance of the battery 100 during battery replacement, and can also constrain the X, Z and rotational degrees of freedom of the battery 100. And the shape of the connecting column 3 is adapted to the guide hole 2, so that the connecting column 3 can smoothly extend into the guide hole 2, realize the precise positioning of the battery 100 and the vehicle-end electro-hydraulic connector before docking, and reliably fix the battery on the vehicle.

[0040] It should be understood that the X direction of the battery 100 is the radial direction of the connecting pillar 3 , the Y direction is the axial direction of the connecting pillar 3 , and the Z direction is perpendicular to both the X direction and the Y direction.

[0041] The connecting cylinder 1 can be set to a cylindrical shape, and correspondingly, the connecting column 3 is set to a cylindrical shape; the guide column 4 is set to a conical shape, and the guide column 4 can also be set to a truncated cone shape, with the large end of the truncated cone facing the connecting column 3 and the small end facing away from the connecting column 3. In order to ensure the support strength, generally speaking, the guide column 4 is set to be solid. The wall thickness of the connecting cylinder 1 is set according to the actual situation.

[0042] In addition, the connecting column 3 can also be set to other shapes, such as a polygonal column, and correspondingly, the guide hole 2 is set to a polygonal column-shaped hole.

[0043] like Figure 2 As shown, in a feasible embodiment of the utility model, a locking mechanism 5 is also included, and the locking mechanism 5 is used to lock the connecting cylinder 1 and the connecting column 3 so that the connecting cylinder 1 and the connecting column 3 are locked and fixed. The locking mechanism 5 is used to constrain the freedom of the battery 100 in the Y direction so as to limit the three degrees of freedom of the space of the battery 100, thereby ensuring the integrity and safety of the entire battery 100 and the vehicle-end battery replacement bracket 200.

[0044] The locking mechanism 5 can be configured in various forms, such as a mechanical lock, an electric lock, a pneumatic lock, etc.

[0045] In this embodiment, the connection column 3 cooperates with the guide hole 2 of the connection tube 1 to constrain the X-direction, Z-direction and rotational freedom of the battery. The locking mechanism 5 is provided to constrain the Y-direction freedom of the battery.

[0046] like Figure 3 As shown, in a feasible embodiment of the utility model, at least one first positioning hole is provided on the connecting tube 1, and at least one first positioning groove 6 is provided on the guide column. The locking mechanism 5 includes a first linear drive mechanism (not shown in the figure) and a first positioning rod 51. The first linear drive mechanism is provided on the battery 100; the first positioning rod 51 is connected to the first linear drive mechanism, and the first positioning rod 51 passes through the first positioning hole and the first positioning groove 6 at the same time. The first linear drive mechanism is used to drive the first positioning rod 51. The first positioning rod 51 is driven by the first linear drive mechanism to pass through the first positioning hole and the first positioning groove 6 to achieve locking and fixation between the connecting tube 1 and the connecting column 3.

[0047] The design of the first positioning hole and the first positioning groove 6 should ensure positioning accuracy so that the first positioning rod 51 can be accurately inserted and locked. The first positioning rod 51 should have high strength and durability to withstand frequent locking and unlocking operations.

[0048] In a feasible embodiment of the present invention, the first linear drive mechanism includes one of an electric cylinder, a pneumatic cylinder, and a hydraulic cylinder, as long as it can achieve linear motion.

[0049] More specifically, the locking mechanism 5 also includes a reset member 52 and a support 53. The reset member 52 is sleeved on the outer periphery of the first positioning rod 51, and the reset member 52 is used to reset the first positioning rod 51 after the battery replacement is completed; the first positioning rod 51 passes through the support 53, one end of the reset member 52 abuts against the support 53, and the other end is connected to the first positioning rod 51.

[0050] The reset member 52 may be made of a spring, elastic rubber or other elastic material, depending on the required reset force and the use environment. Since the reset member 52 is a consumable part, the convenience of its replacement should be considered during design. A modular design can be adopted so that the reset member can be easily disassembled and replaced. The support 53 needs to be strong enough to withstand the elastic force of the reset member 52 and ensure that the first positioning rod 51 can stably penetrate it.

[0051] In a feasible embodiment of the present invention, the first positioning groove 6 is adapted to the shape of the first positioning rod 51, so that the first positioning groove 6 can be inserted into the first positioning rod 51 and fit tightly. It should be noted that the tolerance range can be strictly controlled to ensure the matching accuracy between the two.

[0052] like Figure 4 and Figure 5 As shown, in a feasible embodiment of the utility model, at least one second positioning hole 7 is provided on the connecting tube 1, and the second positioning hole 7 is close to one end of the vehicle-end battery swap bracket 200. At least one second positioning groove 8 is provided on the connecting column 3. The locking mechanism 5 includes a second linear drive mechanism 54 and a second positioning rod 55, and the second linear drive mechanism 54 is provided on the vehicle-end battery swap bracket 200; the second positioning rod 55 is connected to the second linear drive mechanism 54, and the second positioning rod 55 passes through the second positioning hole 7 and the second positioning groove 8 at the same time, and the second linear drive mechanism 54 is used to drive the second positioning rod 55. Under the drive of the second linear drive mechanism 54, the second positioning rod 55 passes through the second positioning hole and the second positioning groove 8 to realize the locking fixation between the connecting tube 1 and the connecting column 3.

[0053] In a feasible embodiment of the present invention, the extension length of the second positioning groove 8 is smaller than the diameter of the connecting column 3, and generally speaking, the depth or length of the second positioning groove 8 at least reaches the radius of the connecting column 3 to ensure that the second positioning groove 8 can be firmly matched with the second positioning rod 55.

[0054] In a feasible embodiment of the present invention, at least two connecting cylinders 1 and connecting columns 3 are provided. When two connecting cylinders 1 are provided, the two connecting cylinders 1 are respectively located on both sides of the top of the battery 100 to keep the battery 100 stable.

[0055] The battery replacement process of the battery pack suspension device provided by the utility model is as follows: when a fully charged battery is delivered to the vehicle to be replaced, the locking mechanism 5 is unlocked, and the guide hole 2 on the battery 100 begins to align with the guide column 4, which is a rough positioning process; the guide hole 2 on the battery 100 is combined with the outer peripheral surface of the connecting column 3, which is a precise positioning process; the battery 100 is engaged with the electro-hydraulic connector, the locking mechanism 5 is locked, and the battery replacement is completed.

[0056] A second aspect of the present invention provides an operating machine, comprising an operating machine body and a battery pack hanging device, wherein the battery pack hanging device is any of the above battery pack hanging devices, and the battery pack hanging device is arranged on the operating machine body.

[0057] In the embodiments of the present invention, the type of the working machine is not limited. For example, the working machine may be an excavator, a crane, a loader, etc. In other words, as long as the working machine can use the battery pack suspension device of the present invention.

[0058] The operating machinery provided by the embodiment of the utility model has the various advantages as described above because it includes the battery pack suspension device as described above.

[0059] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A battery pack suspension device, characterized in that: include: A connecting tube (1) having a guide hole (2) in the middle; A connecting column (3), wherein the connecting column (3) and the connecting tube (1) are arranged in a one-to-one correspondence; and the shape of the connecting column (3) is adapted to the guide hole (2); A guide column (4) is arranged at one end of the connecting column (3) before entering the connecting tube (1); One of the connecting column (3) and the connecting cylinder (1) is arranged on the battery (100), and the other is arranged on the vehicle-end battery replacement bracket (200).

2. The battery pack suspension device according to claim 1, characterized in that: It also comprises a locking mechanism, wherein the locking mechanism (5) is used to lock the connecting cylinder (1) and the connecting column (3) so that the connecting cylinder (1) and the connecting column (3) are locked and fixed.

3. The battery pack suspension device according to claim 2, characterized in that: The connecting tube (1) is provided with at least one first positioning hole, the guide column (4) is provided with at least one first positioning groove (6), and the locking mechanism (5) comprises: A first linear drive mechanism, arranged on the battery (100); A first positioning rod (51) is connected to the first linear drive mechanism, and the first positioning rod (51) simultaneously passes through the first positioning hole and the first positioning groove (6).

4. The battery pack suspension device according to claim 3, characterized in that: The first linear drive mechanism includes one of an electric cylinder, a pneumatic cylinder, and a hydraulic cylinder.

5. The battery pack suspension device according to claim 3, characterized in that: The locking mechanism (5) further comprises: A reset member (52) is sleeved on the outer circumference of the first positioning rod (51), and the reset member (52) is used to reset the first positioning rod (51) after battery replacement is completed; A support (53), wherein the first positioning rod (51) passes through the support (53); one end of the reset member (52) abuts against the support (53), and the other end is connected to the first positioning rod (51).

6. The battery pack suspension device according to claim 3, characterized in that: The first positioning groove (6) is adapted to the shape of the first positioning rod (51).

7. The battery pack suspension device according to claim 2, characterized in that: The connecting tube (1) is provided with at least one second positioning hole (7), the connecting column (3) is provided with at least one second positioning groove (8), and the locking mechanism (5) comprises: A second linear drive mechanism (54) is arranged on the vehicle-end battery replacement bracket (200); The second positioning rod (55) is connected to the second linear drive mechanism (54), and the second positioning rod (55) simultaneously passes through the second positioning hole (7) and the second positioning groove (8).

8. The battery pack suspension device according to claim 7, characterized in that: The extension length of the second positioning groove (8) is smaller than the diameter of the connecting column.

9. The battery pack suspension device according to claim 1, characterized in that: At least two of the connecting cylinders (1) and the connecting columns (3) are provided.

10. A working machine, characterized in that: It comprises an operating machine body and a battery pack hanging device, wherein the battery pack hanging device is the battery pack hanging device as described in any one of claims 1 to 9, and the battery pack hanging device is arranged on the operating machine body.

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