Lithium battery pack mounting structure

Abstract

The utility model relates to the technical field of battery modules, in particular to a lithium battery pack mounting structure which comprises a first semi-ring structure and a second semi-ring structure which are symmetrically arranged, and the first semi-ring structure and the second semi-ring structure are detachably connected to form an annular structure matched with an airborne rotor in appearance. Each of the first semi-ring structure and the second semi-ring structure is provided with a cavity for mounting a lithium battery pack; the wall thickness of the cavity is 2.5 mm, and the first semi-ring structure and the second semi-ring structure are both hard alloy parts. According to the lithium battery pack mounting structure, on one hand, the mounting requirement of an airborne rotor in a circular space is met, the wall thickness of the cavity is 2.5 mm, and meanwhile, the first semi-ring structure and the second semi-ring structure are hard alloy parts, so that the lithium battery pack mounting structure is light in overall weight, heat generated by the two lithium battery packs can be conveniently conducted into the air, and the service life of the lithium battery pack mounting structure is prolonged. Heat dissipation of the lithium battery pack is facilitated; and replacement is convenient, and maintenance is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery module technical field especially relates to a lithium battery pack mounting structure. BACKGROUND

[0002] With the rapid development of various industries, the use of lithium battery packs has penetrated into various aspects and fields of modern production and life, and the corresponding standards, design schemes, intelligent manufacturing, automatic control, installation structure and safe recycling have become mature, and the industry scale is large and the application scenarios are many.

[0003] In the field of aviation applications, as a key energy supply system and an important equipment test power supply system, the lithium battery pack mounting structure in the prior art has a frame type / pasting type and an embedded type, but there are problems such as shape mismatch, complex installation, and inconvenient maintenance.

[0004] For example, the frame type installation is used to fix the battery with a metal or plastic frame, the battery is placed in a unit cell or a clamping groove of an integrated rectangular frame, and the movement of the battery is limited by the shape and size of the clamping groove. However, the frame structure does not match the rotor shape structure of the aircraft, resulting in a large volume and heavy weight of the frame, thereby increasing the load of the aircraft. The frame is not suitable for flight requirements in high-altitude environments, and also causes slow heat dissipation of the lithium battery pack. The pasting type installation is used to paste the battery to a specified position with a special adhesive material. This installation method can save space, but has problems such as small battery capacity, inconvenience of disassembly, and adhesive failure at high temperatures. The embedded type installation is used to embed the battery into a specially designed groove. This installation method has high safety, but has the problem of inconvenience of replacement.

[0005] Therefore, it is necessary to design a lithium battery pack mounting structure that improves the above problems. SUMMARY

[0006] In order to solve the problems of the prior art, the utility model provides a lithium battery pack mounting structure, including symmetrically arranged first half ring structure and second half ring structure, the first half ring structure and the second half ring structure can be detachably connected to form a circular ring structure matched with the rotor shape of the aircraft, the first half ring structure and the second half ring structure are provided with cavities for mounting a group of lithium battery packs; the cavity wall thickness is 2.5mm, and the first half ring structure and the second half ring structure are both hard alloy parts.

[0007] Further, the two ends of the first half ring structure and the second half ring structure are provided with connecting parts, a plurality of first mounting holes are formed in the connecting parts, one end of the connecting part in the first half ring structure is further provided with a first adjusting hole, and one end of the connecting part in the second half ring structure is further provided with a second adjusting hole, so as to adjust the circular ring structure space through the first adjusting hole and the second adjusting hole to meet the installation requirements in different circular spaces of different models of airborne rotors.

[0008] Further, the connecting part is an arc structure.

[0009] Further, at least one radial side wall of the cavity of the first half ring structure is provided with a second mounting hole, and the second mounting hole is located at a position of the cavity away from the center of the circular ring structure.

[0010] At least one radial side wall of the cavity of the second half ring structure and the side wall of the cavity of the second half ring structure away from the center of the circular ring structure are respectively provided with third mounting holes, and the second mounting hole and the third mounting hole are provided with fixing connecting pieces, so as to fix the lithium battery pack and the lithium battery pack mounting structure through the fixing connecting pieces.

[0011] Further, the fixing connecting piece is a screw.

[0012] Further, the arc angle of the arc-shaped half ring structure where the cavity is located is 46°, so as to match the installation position of the airborne rotor.

[0013] The beneficial effects of the utility model are as follows:

[0014] The lithium battery pack mounting structure comprises a first half ring structure and a second half ring structure which are symmetrically arranged, the first half ring structure and the second half ring structure are detachably connected to form a circular ring structure matched with the shape of the airborne rotor, the lithium battery pack mounting structure meets the installation requirements in the circular space of the airborne rotor on one hand, the cavity wall thickness is 2.5 mm, and the first half ring structure and the second half ring structure are both hard alloy pieces, so that the overall weight of the lithium battery pack mounting structure is light, the heat generated by the two lithium battery packs can be easily conducted to the air, the heat dissipation of the lithium battery pack is beneficial, on the other hand, the lithium battery pack mounting structure can withstand the overload vibration and strong impact in the flight process, is suitable for the flight requirements in the high-altitude environment, and can also ensure the heat dissipation of the lithium battery pack and facilitate replacement and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the first half ring structure of the utility model;

[0016] Figure 2 It is a schematic view of the second half ring structure of the utility model;

[0017] Figure 3The utility model discloses first half ring structure in D-D place section view of structure,

[0018] Figure 4 The utility model discloses lithium battery group mounting structure's structure schematic diagram.

[0019] Reference signs:

[0020] In the drawing: 1 - first half ring structure 1, 2 - second half ring structure, 3 - second mounting hole, 4 - third mounting hole, 5 - cavity. Specific implementation

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] Please refer to Figures 1-4 The utility model provides a kind of lithium battery group mounting structure, including symmetrically arranged first half ring structure and second half ring structure 2, the first half ring structure and second half ring structure 2 can be detachably connected to constitute the circular ring structure matched with airborne rotor shape, the first half ring structure and second half ring structure 2 are all provided with cavity 5, for installing a group of lithium battery group;The wall thickness of the cavity 5 is 2.5mm, and the first half ring structure and second half ring structure 2 are all hard alloy parts.

[0023] It should be noted that the lithium battery group mounting structure is symmetrically arranged with the first half ring structure 1 and the second half ring structure 2, one lithium battery group is installed in the first half ring structure 1 and the second half ring structure 2 respectively, one lithium battery group is connected in series by 8 lithium battery cores, the first half ring structure 1 and the second half ring structure 2 can be detachably connected to constitute the circular ring structure matched with airborne rotor shape, meet the installation demand in the circular space of airborne rotor, and it is convenient to replace and maintain, wherein the first half ring structure 1 and the second half ring structure 2 are symmetrically arranged and provided with the cavity 5 for installing lithium battery group, the wall thickness of the cavity 5 is 2.5mm, it is convenient to export the heat generated by two lithium battery groups to air, beneficial to lithium battery group heat dissipation, at the same time, the first half ring structure 1 and the second half ring structure 2 make the overall weight of the lithium battery group mounting structure light, the wall thickness of the cavity 5 is 2.5mm, it is convenient to export the heat generated by two lithium battery groups to air, beneficial to lithium battery group heat dissipation, since the overall weight of the lithium battery group mounting structure is light, two lithium battery groups are installed in the cavity 5, so that the weight error between the two lithium battery groups does not exceed 5g, and the centripetal acceleration is not less than 2500m / s 2, and further makes the lithium battery pack mounting structure able to withstand the overload vibration and strong impact during flight, so as to adapt to the flight requirements in high-altitude environment; wherein the lithium battery charging interface, the internal interconnection connector and the lithium battery pack are connected by using aviation plug and socket and cable; the two lithium battery packs are packaged by using sealing structure, the total weight of the two lithium battery packs is not more than 1350g±20g, the eight lithium battery cores connected in series are connected in parallel to output stable voltage, have the ability of mains charging, the endurance time can reach 6 hours under the rated 35W, can provide power supply for specific equipment test, and the lithium battery pack mounting structure has been used on the helicopter at present;

[0024] Further, the connecting part is provided with a plurality of first mounting holes, one end of the connecting part in the first half ring structure is further provided with a first adjusting hole, and one end of the connecting part in the second half ring structure 2 is further provided with a second adjusting hole, so as to adjust the circular ring structure space through the first adjusting hole and the second adjusting hole to meet the installation requirements in different circular spaces of different models of airborne rotors; the connecting part is in an arc structure.

[0025] Further, at least one radial side wall of the cavity 5 of the first half ring structure is provided with a second mounting hole 3, and the second mounting hole 3 is located at a position away from the center of the circular ring structure;

[0026] At least one radial side wall of the cavity 5 of the second half ring structure 2 and the side wall of the cavity 5 of the second half ring structure 2 away from the center of the circular ring structure are respectively provided with a third mounting hole 4, and the second mounting hole 3 and the third mounting hole 4 are provided with a fixed connecting piece, so as to fix the lithium battery pack and the lithium battery pack mounting structure through the fixed connecting piece.

[0027] Further, the fixed connecting piece is a screw.

[0028] Further, the arc angle of the half ring structure where the cavity is located is 46°, so as to match the installation position of the airborne rotor;

[0029] It is worth mentioning that the lithium battery pack mounting structure comprises the first half ring structure and the second half ring structure which are symmetrically arranged and detachably connected to form a circular ring structure matched with the shape of the airborne rotor; the lithium battery pack mounting structure meets the installation requirement in the circular space of the airborne rotor, the cavity wall thickness is 2.5 mm, meanwhile, the first half ring structure and the second half ring structure are both hard alloy pieces, so that the overall weight of the lithium battery pack mounting structure is light, the heat generated by the two lithium battery packs can be easily conducted to the air, the lithium battery packs are beneficial to heat dissipation, on the other hand, the lithium battery pack mounting structure can withstand the overload vibration and strong impact in the flight process, is suitable for the flight requirement in the high-altitude environment, and can also ensure the heat dissipation of the lithium battery pack and the replaceability and maintainability.

[0030] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lithium battery pack mounting structure characterized by comprising: The first half ring structure and the second half ring structure are symmetrically arranged, are detachably connected to form a circular ring structure matched with the shape of an airborne rotor, and are provided with cavities for mounting a set of lithium battery packs.

2. The lithium battery pack mounting structure according to claim 1, characterized by Both ends of the first half ring structure and the second half ring structure are provided with connecting portions, a plurality of first mounting holes are formed in the connecting portions, one end of the connecting portion in the first half ring structure is further provided with a first adjusting hole, one end of the connecting portion in the second half ring structure is further provided with a second adjusting hole, and the space of the circular ring structure is adjusted through the first adjusting hole and the second adjusting hole to meet the mounting requirements in different circular spaces of different models of airborne rotors.

3. The lithium battery pack mounting structure according to claim 2, characterized by The connecting portion is in an arc structure.

4. The lithium battery pack mounting structure according to claim 1, characterized by At least one radial side wall of the cavity of the first half ring structure is provided with a second mounting hole, and the second mounting hole is located at a position of the cavity away from the center of the circular ring structure. At least one radial side wall of the cavity of the second half ring structure and the side wall of the cavity of the second half ring structure away from the center of the circular ring structure are respectively provided with third mounting holes, and the second mounting hole and the third mounting hole are provided with fixing connecting pieces for fixing the lithium battery pack and the lithium battery pack mounting structure through the fixing connecting pieces.

5. The lithium battery pack mounting structure according to claim 4, characterized by The fixing connecting piece is a screw.

6. The lithium battery pack mounting structure according to claim 1, characterized by The arc angle of the arc-shaped half ring structure where the cavity is located is 46°, which is matched with the mounting position of the airborne rotor.

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