Lifting lug sleeve, battery pack tray, battery pack and electric equipment

Abstract

The utility model relates to a lifting lug sleeve, a battery pack tray, a battery pack and electric equipment. The lifting lug sleeve comprises a sleeve body used for stretching into a mounting hole, limiting parts are arranged at the two ends of the sleeve body respectively, and the limiting parts are suitable for abutting against the outer surface of the tray lifting lug and being connected with the tray lifting lug. According to the technical scheme, the two limiting parts at the two ends of the sleeve body can be used for bearing the axial shear force, so that no matter the bolt is installed from top to bottom or from bottom to top, the axial shear force can be borne by the lifting lug sleeve and is not limited by vehicle types, the lifting lug sleeve bears the axial shear force, the structural strength is higher, and the service life of the bolt is prolonged. And the connection reliability of the battery pack tray and the whole vehicle frame can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy batteries, and in particular to a lifting lug sleeve, a battery pack tray, a battery pack and an electrical device. Background Art

[0002] The power battery pack is usually fastened to the vehicle frame by bolts using the ear structure on the pallet. Specifically, a sleeve is provided on the ear structure, and the bolt passes through the sleeve to fasten to the vehicle frame. The ear sleeve can withstand axial shear force during, for example, acceleration impact. In order to adapt to different vehicle models, the installation direction of the bolt is uncertain, either from top to bottom or from bottom to top, and the sleeve provided by the related technology has poor bidirectional shear force bearing capacity, or can only ensure the shear force requirements in one installation direction. The ear sleeve is often pre-installed on the pallet ear, which makes it impossible to meet the requirements of bidirectional axial shear force bearing, and the versatility is not high. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a front lifting ear sleeve, a battery pack tray, a battery pack and a vehicle.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a lifting ear sleeve suitable for being installed in a mounting hole of a pallet lifting ear, the lifting ear sleeve comprising: a sleeve body for extending into the mounting hole, limiting portions being respectively provided at both ends of the sleeve body, the limiting portions being suitable for abutting against an outer surface of the pallet lifting ear and being connected to the pallet lifting ear.

[0005] Optionally, the limiting portion is connected to the pallet lifting ear by welding.

[0006] Optionally, the limiting portion includes a flange integrally provided on the first end of the sleeve body and a clamping member detachably provided on the outer peripheral wall of the second end of the sleeve body.

[0007] Optionally, the limiting portion includes engaging components which are detachably arranged on the outer peripheral walls of both ends of the sleeve body.

[0008] Optionally, a clamping groove is provided on the outer peripheral wall of the end of the sleeve body for cooperating with the clamping member, and the clamping member is constructed as an annular clamping piece with a notch so as to be able to be clamped into the clamping groove in the radial direction.

[0009] Optionally, the slot is configured to surround the sleeve body.

[0010] Optionally, an outer edge of the slot wall of the slot is chamfered.

[0011] According to a second aspect of an embodiment of the present disclosure, a battery pack tray is provided, comprising a tray body and any one of the above-mentioned ear sleeves, wherein the outer wall of the tray body is provided with a tray ear, and the ear sleeve is arranged in the mounting hole of the tray ear.

[0012] Optionally, a plurality of lifting ear sleeves are provided and are spaced apart along the extension direction of the pallet lifting ear.

[0013] Optionally, the pallet lifting lug is constructed as a hollow frame structure, and reinforcing ribs are arranged inside the hollow frame structure.

[0014] According to a third aspect of an embodiment of the present disclosure, a battery pack is provided, comprising any one of the battery pack trays described above.

[0015] According to a fourth aspect of an embodiment of the present disclosure, there is provided an electrical device comprising the above-mentioned battery pack.

[0016] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the lifting ear sleeve provided by the present disclosure is provided with limiting portions at both ends of the sleeve body, and is respectively connected to the tray lifting ears through the two limiting portions, that is, the two limiting portions at both ends of the sleeve body can be used to withstand axial shear force, so that no matter the bolt is installed from top to bottom or from bottom to top, the axial shear force can be borne by the lifting ear sleeve, which is not restricted by the vehicle model and has higher versatility. In addition, the axial shear force is borne by the lifting ear sleeve, and the structural strength is higher, which is beneficial to improving the reliability of the connection between the battery pack tray and the vehicle frame.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present disclosure and constitute a part of the specification. They are used to explain the present disclosure together with the following detailed description, but do not constitute a limitation of the present disclosure.

[0019] Figure 1 It is a schematic structural diagram of a hanging ear sleeve provided in an exemplary embodiment of the present disclosure.

[0020] Figure 2 It is a schematic structural diagram of a sleeve body provided in an exemplary embodiment of the present disclosure.

[0021] Figure 3 It is a structural schematic diagram of a locking component provided in an exemplary embodiment of the present disclosure.

[0022] Figure 4 It is a schematic structural diagram of a battery pack tray provided in an exemplary embodiment of the present disclosure.

[0023] Description of Reference Numerals

[0024] 1-lifting ear sleeve, 11-sleeve body, 111-slot, 112-chamfer, 12-limiting part, 121-flange, 122-clamping component, 2-pallet lifting ear, 21-weld scar, 22-reinforcement rib, 3-pallet body. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0026] The embodiments described in some embodiments of the present disclosure below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] like Figures 1 to 4 As shown, an exemplary embodiment of the present disclosure provides a lifting ear sleeve 1, which is suitable for being installed in a mounting hole of a pallet lifting ear 2. In some application scenarios, in order to facilitate the lifting of a battery pack pallet and reliably fix the battery pack pallet to a complete vehicle frame, the battery pack pallet is usually provided with a pallet lifting ear 2, and the pallet lifting ear 2 is provided with a mounting hole for installing the lifting ear sleeve 1. The lifting ear sleeve 1 is arranged in the mounting hole and fixed on the pallet lifting ear 2, and a bolt is passed through the lifting ear sleeve 1 to fix the battery pack pallet to the complete vehicle frame.

[0028] The lifting ear sleeve 1 provided by the present disclosure includes: a sleeve body 11 for extending into the mounting hole, and two ends of the sleeve body 11 are respectively provided with limiting portions 12, and the limiting portions 12 are suitable for abutting against the outer surface of the pallet lifting ear 2 and connecting with the pallet lifting ear 2. The limiting portion 12 can be fixedly connected to the pallet lifting ear 2 by welding, for example, to improve the connection strength between the two.

[0029] Considering that the lifting lug sleeve 1 has the function of bearing axial shear force during acceleration impact, it has an important impact on the reliability of battery pack installation. The lifting lug sleeves commonly used in the related art are in two forms: a sleeve or a sleeve with a flange at one end. Among them, the two ends of the sleeve are fixedly connected to the tray lifting lug 2 by welding, and the axial shear force at this position is all borne by the weld scar 21, while the lifting lug sleeve 1 itself does not bear the axial shear force, so the strength of the connection between the battery pack and the frame is low. The sleeve with a flange at one end of the sleeve is welded and fixed to the tray lifting lug 2 by the flange, and the flange bears the axial shear force, while the other end is still borne by the weld scar 21. This results in that when the bolt is installed in the forward direction, such as installing the bolt from top to bottom, the flange itself bears the axial shear force at one end of the flange, and when the bolt is installed in the reverse direction, such as installing the bolt from bottom to top, the axial shear force at the other end of the flange is completely borne by the weld scar, that is, when the bolt is installed in the reverse direction, since the lifting lug sleeve 1 itself does not bear the axial shear force, the strength of the connection between the battery pack and the frame is low.

[0030] The lifting ear sleeve 1 provided by the present invention has a limiting portion 12 at both ends of the sleeve body 11, and is welded to the tray lifting ear 2 through the limiting portion 12. In this way, the limiting portion 12 can bear the axial shear force from both ends of the sleeve body 11, and the limiting portion 12 belongs to the lifting ear sleeve 1, that is, both ends of the lifting ear sleeve 1 itself can be used to bear the axial shear force. In this way, whether the bolt is installed from top to bottom or from bottom to top, the axial shear force can be borne by the lifting ear sleeve 1, which is not limited by the vehicle model and has higher versatility. In addition, the axial shear force is borne by the lifting ear sleeve 1 instead of the weld scar 21, and the structural strength is higher, which is conducive to improving the reliability of the connection between the battery pack tray and the vehicle frame. In addition, when the axial shear force is mainly borne by the lifting ear sleeve 1, the weld scar 21 is subjected to less force, the requirements for welding can be reduced, and the risk of failure is small.

[0031] Also refer to Figures 1 to 3 In some embodiments, the limiting portion 12 may include a flange 121 integrally provided at the first end of the sleeve body 11 and a clamping member 122 detachably provided at the outer peripheral wall of the second end of the sleeve body 11. The radial dimension of the flange 121 is larger than the mounting hole so as to limit the axial displacement of the ear sleeve 1, while the sleeve body extends into the mounting hole and allows the second end to be exposed from the mounting hole, and then the clamping member 122 is provided at the outer peripheral wall of the sleeve body 11. The flange 121 and the clamping member are respectively pressed against the outer surface of the pallet ear 2 and welded to the pallet ear 2. At this time, the axial shear force is respectively borne by the flange 121 and the clamping member 122.

[0032] In other embodiments, the limiting portion 12 may also be configured to include a clamping member 122 detachably disposed on the outer peripheral wall of both ends of the sleeve body 11. That is, different from the aforementioned embodiment in which a flange 121 is disposed at one end of the sleeve body 11, in these other embodiments, the flange 121 is also replaced by a clamping member 122.

[0033] The present disclosure does not limit the specific form of the locking member 122. For example, it can be a snap ring with a notch to be introduced later, or it can be a threaded member such as a nut, etc. As long as it can be sleeved on the outer peripheral wall of the sleeve body 11 and connected to the pallet ear 2, it can be applied in the present disclosure.

[0034] You can continue to refer to Figures 1 to 3 In some embodiments, the outer peripheral wall of the end of the sleeve body 11 for cooperating with the clamping member 122 is provided with a clamping groove 111. For example, in the embodiment in which one end of the sleeve body 11 is a flange 121, the clamping groove 111 is provided at the other end away from the flange 121; and in the embodiment in which the clamping members 122 are provided at both ends, the clamping grooves 111 are provided at both ends of the sleeve body 11. The clamping member 122 is configured as a clamping ring with a notch so as to be able to be clamped into the clamping groove 111 in the radial direction. The shape of the clamping member 122 can be adapted to the shape of the sleeve body 11. For example, when the sleeve body 11 is cylindrical, the clamping member 122 is a C-shaped clamping ring, and when the sleeve body 11 is a square sleeve, the clamping member 122 is a groove-shaped clamping ring. By providing the clamping groove 111 in the sleeve body 11, on the one hand, the installation position of the clamping ring with a notch can be controlled, and on the other hand, the displacement of the clamping ring with a notch in the axial direction can be limited to ensure the accuracy of the installation position of the clamping ring with a notch.

[0035] The clamping groove 111 can be configured to surround the sleeve body 11, that is, the clamping groove 111 is configured to be a full circle of annular rings. In this way, the clamping ring and the clamping groove 111 can be smoothly matched no matter from which position along the radial direction, which is conducive to improving the installation efficiency, and there is no need to determine the installation position of the clamping ring in advance in a narrow installation space to affect the installation efficiency. In addition, the outer edge of the groove wall of the clamping groove 111 can be formed with a chamfer 112, which is conducive to dispersing stress and guiding the installation of the clamping ring.

[0036] According to a second aspect of the embodiment of the present disclosure, Figure 4 As shown, a battery pack tray is also provided, which includes a tray body 3 and any one of the above-mentioned ear sleeves 1. The outer wall of the tray body 3 is provided with a tray ear 2, and the ear sleeve 1 is arranged in the mounting hole of the tray ear 2. The tray ear 2 can be regarded as a plate protruding from the outer wall of the tray body 3, so as to provide a larger hoisting and installation space.

[0037] In order to improve the structural strength of the installation, in some embodiments, a plurality of lifting eye sleeves 1 may be provided and spaced apart along the extension direction of the pallet lifting eye 2. Figure 4 As shown, two lifting eye sleeves 1 are arranged at intervals on the pallet lifting eye 2. The number of the lifting eye sleeves 1 can be determined according to the number of installation points at corresponding positions on the vehicle frame or the required installation strength.

[0038] The pallet lifting ears 2 can be constructed as a hollow frame structure, and a reinforcing rib 22 is arranged in the hollow frame structure. Providing the pallet lifting ears 2 with a hollow structural frame can reduce the weight of the battery pack, which is conducive to achieving lightweight design of the entire vehicle. The reinforcing rib 22 arranged in the hollow frame structure can compensate for the loss of structural strength caused by the hollowness of the frame structure.

[0039] According to the third aspect of the embodiment of the present disclosure, there is also provided a battery pack, comprising any one of the above-mentioned battery pack trays, and having all the beneficial effects thereof, which will not be described in detail here.

[0040] According to a fourth aspect of the embodiments of the present disclosure, there is also provided an electrical device, comprising the above-mentioned battery pack.

[0041] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0043] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A lifting ear sleeve, suitable for installation in the mounting hole of the pallet lifting ear, characterized in that: The ear sleeve comprises: a sleeve body for extending into the mounting hole, and two ends of the sleeve body are respectively provided with limiting parts, and the limiting parts are suitable for abutting against the outer surface of the pallet ear and connecting with the pallet ear.

2. The hanging ear sleeve according to claim 1, characterized in that: The limiting portion is connected to the pallet lifting ear by welding.

3. The hanging ear sleeve according to claim 1, characterized in that: The limiting portion includes a flange integrally arranged on the first end of the sleeve body and a clamping component detachably arranged on the outer peripheral wall of the second end of the sleeve body.

4. The hanging ear sleeve according to claim 1, characterized in that: The limiting portion includes engaging components which are detachably arranged on the outer peripheral walls at both ends of the sleeve body.

5. The hanging ear sleeve according to claim 3 or 4, characterized in that: The outer peripheral wall of the end of the sleeve body used to cooperate with the clamping member is provided with a clamping groove, and the clamping member is constructed as a clamping ring with a notch so as to be able to be clamped into the clamping groove in the radial direction.

6. The hanging ear sleeve according to claim 5, characterized in that: The clamping groove is configured to surround the sleeve body.

7. The hanging ear sleeve according to claim 5, characterized in that: The outer edge of the slot wall of the clamping slot is chamfered.

8. A battery pack tray, characterized in that: It comprises a pallet body and the ear sleeve according to any one of claims 1 to 7, wherein the outer side wall of the pallet body is provided with a pallet ear, and the ear sleeve is arranged in the mounting hole of the pallet ear.

9. The battery pack tray according to claim 8, characterized in that: The ear sleeves are provided in plurality and are arranged at intervals along the extension direction of the pallet ear.

10. The battery pack tray according to claim 9, characterized in that: The pallet lifting lug is constructed as a hollow frame structure, and reinforcing ribs are arranged inside the hollow frame structure.

11. A battery pack, characterized in that: A battery pack tray comprising the battery pack tray described in any one of claims 8-10.

12. An electrical device, characterized in that: A battery pack comprising the battery pack of claim 11.

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