CN220021261U

CN220021261U - Underwater vehicle

Info

Publication number: CN220021261U
Application number: CN202320898510.XU
Authority: CN
Inventors: 周杰宇; 李小康; 李至淼; 齐东荣; 吴列松; 刘鹏程
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-11-14
Anticipated expiration: 2033-04-19

Abstract

The present utility model provides an underwater vehicle comprising: a battery compartment section including a mounting cavity; the battery pack is arranged in the mounting cavity; the heat conduction assembly is arranged between the battery pack and the battery compartment section; wherein, the group battery passes through heat conduction subassembly heat conduction ground is connected to the battery compartment section. Through set up heat conduction subassembly between group battery with the battery compartment section, make the heat of group battery can pass through heat conduction subassembly with the battery compartment section transmits to external environment, thereby utilizes good heat dissipation medium in the external environment to dispel the heat, and carries out radiating mode in airtight environment through setting up phase change material etc. in for the correlation technique, can be very big improvement the radiating efficiency of passive radiating mode in the battery compartment section, thereby improved the technical problem of the radiating efficiency of passive radiating mode in the battery compartment section of underwater vehicle.

Description

Underwater vehicle

Technical Field

The utility model relates to the technical field of batteries, in particular to an underwater vehicle.

Background

The underwater vehicle is utilized to detect and develop ocean resources, and is increasingly widely applied in the fields of scientific research, military, industry and the like. The power required by the underwater vehicle is provided by a lithium battery energy system, the underwater vehicle can continuously carry out navigational speed switching according to different requirements in the working process, the lithium battery pack needs high-power discharge in a high-speed navigational state, a large amount of heat can be generated, and the battery compartment section is a closed space, so that the heat in the battery pack is accumulated, the temperature rising phenomenon at the radial center position of the battery pack is obvious, the temperature difference between batteries is overlarge, the service life of the batteries can be influenced when the underwater vehicle works in the working environment for a long time, the thermal runaway event of the batteries is more likely to be caused under severe conditions, and the work of the underwater vehicle is seriously influenced.

In the related art, the heat dissipation of the battery compartment of the underwater vehicle mainly depends on an active heat dissipation mode and a passive heat dissipation mode to control the working temperature of the battery pack, so that the lithium battery is ensured to work in an optimal working range. Active heat dissipation mainly adopts an air cooling mode and a liquid cooling mode, but is often limited by space, weight and other reasons of a battery compartment section, and an air duct or a cooling circulation system is difficult to effectively and reliably arrange. The passive heat dissipation mode is mainly to add solid phase change materials between the battery monomers, the heat storage capacity of the phase change materials is difficult to meet the requirement of high-power heat dissipation, unnecessary weight can be increased, and the efficiency is low.

Thus, there is a need to provide heat dissipation efficiency in the battery compartment of an underwater vehicle in a passive heat dissipation manner.

Disclosure of Invention

The embodiment of the utility model provides an underwater vehicle, which can improve the technical problem of heat dissipation efficiency of a passive heat dissipation mode in a battery compartment of the underwater vehicle.

An embodiment of the present utility model provides an underwater vehicle including:

a battery compartment section including a mounting cavity;

the battery pack is arranged in the mounting cavity; and

the heat conduction assembly is arranged between the battery pack and the battery compartment section;

wherein, the group battery passes through the heat conduction subassembly is connected to the battery compartment section.

In an embodiment, the heat conducting assembly comprises a heat conducting bridge fixed on the battery compartment section and a plurality of heat conducting pipes mounted on the outer side of the heat conducting bridge, and each heat conducting pipe is connected to the battery pack.

In an embodiment, the heat conduction bridge is provided with a groove, the heat conduction pipe is arranged in the groove, and the outer surface of the heat conduction pipe exposed to the groove is flush with the outer surface of the heat conduction bridge.

In an embodiment, the heat conduction bridge comprises a first heat conduction part connected to the battery pack and a second heat conduction part extending from the end part of the first heat conduction part in a bending way towards the battery compartment section, and the second heat conduction part is connected with the battery compartment section;

the grooves are arranged on the first heat conduction part and the second heat conduction part.

In an embodiment, the heat conduction bridge includes two opposite second heat conduction portions, and the two second heat conduction portions and the first heat conduction portion enclose a cavity with a bulkhead of the battery compartment.

In one embodiment, the battery pack includes a plurality of cells, and the battery pack further includes:

each heat conducting fin comprises a heat absorbing part arranged between two adjacent electric cores and a heat transfer part formed by bending and extending one end, close to the heat conducting pipe, of the heat absorbing part, and the heat transfer part is connected with the heat conducting pipe.

In an embodiment, the battery pack further includes a heat-conducting fixing frame connected to a side of the battery pack, which is close to the heat-conducting component, the heat-conducting fixing frame is provided with a plurality of openings, and the heat-transferring portion of each heat-conducting fin passes through the corresponding opening and is connected to a side surface of the heat-conducting fixing frame, which faces the heat-conducting component.

In an embodiment, the length of the heat absorbing portion is greater than the length of the opening.

In an embodiment, the heat conduction bridge includes a first heat conduction portion and a second heat conduction portion, the second heat conduction portion is connected between the battery compartment section and the first heat conduction portion, and the heat conduction pipe is at least arranged on the first heat conduction portion and the second heat conduction portion;

the heat transfer part is attached to a part of the heat conduction pipe, which is positioned on the first heat conduction part, and the length of the part is not smaller than that of the heat transfer part.

In an embodiment, the battery pack comprises two heat conducting components which are oppositely arranged, and the battery pack is connected between a plurality of heat conducting pipes of the two heat conducting components.

The embodiment of the utility model has the beneficial effects that: through set up heat conduction subassembly between group battery with the battery compartment section, make the heat of group battery can pass through heat conduction subassembly with the battery compartment section transmits to external environment, thereby utilizes good heat dissipation medium in the external environment to dispel the heat, and carries out radiating mode in airtight environment through setting up phase change material etc. in for the correlation technique, can be very big improvement the radiating efficiency of passive radiating mode in the battery compartment section, thereby improved the technical problem of the radiating efficiency of passive radiating mode in the battery compartment section of underwater vehicle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a battery compartment, a battery pack, and a heat transfer assembly of an underwater vehicle according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a battery compartment and a thermally conductive assembly according to one embodiment of the present utility model;

fig. 3 is a schematic structural view of a battery pack according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a heat conductive sheet according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a heat-conducting holder according to an embodiment of the present utility model;

fig. 6 is an enlarged schematic view of the structure at a of fig. 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

As shown in fig. 1 and 2, an underwater vehicle includes a battery compartment 100, a battery pack 200, and a heat transfer assembly 300. The underwater vehicle may be divided into a plurality of sections according to different functions, and the battery section 100 is a section for mounting the battery pack 200 among the plurality of sections. The battery compartment 100 includes a mounting cavity within which the battery pack 200 is disposed. The battery pack 200 may include one or more battery packs 201 formed by a plurality of individual cells 202 in series and/or parallel, as well as structural members (e.g., end plates, side plates, bottom plates, etc.), wiring harnesses, management systems. The heat conduction assembly 300 is disposed between the battery compartment 100 and the battery pack 200 and is in heat conduction connection with the battery compartment 100 and the battery pack 200, and the heat conduction assembly 300 transfers heat generated by the battery pack 200 to the battery compartment 100 so as to exchange heat with the outside by using the battery compartment 100. It can be appreciated that, by using the heat conduction assembly 300 to transfer the heat of the battery pack 200 to the battery compartment 100, and by contacting the battery compartment 100 with an external environment, such as sea water, the heat dissipation efficiency of the passive heat dissipation mode in the battery compartment 100 can be greatly improved compared to the heat dissipation mode in the closed environment by providing a phase change material or the like in the related art.

It should be noted that the thermally conductive connection at least includes contact between the two, but is not limited to a fixed state and manner between the two.

In this embodiment, by disposing the heat conducting assembly 300 between the battery pack 200 and the battery compartment 100, heat of the battery pack 200 can be transferred to the external environment through the heat conducting assembly 300 and the battery compartment 100, so that good heat dissipation media in the external environment are utilized to dissipate heat, and compared with a manner of dissipating heat in a closed environment by disposing a phase change material or the like in the related art, the heat dissipation efficiency of the passive heat dissipation manner in the battery compartment 100 can be greatly improved, thereby improving the technical problem of the heat dissipation efficiency of the passive heat dissipation manner in the battery compartment 100 of the underwater vehicle.

In order to better illustrate the inventive concepts of the present utility model, a number of specific embodiments are provided below and described in detail from a number of perspectives, it being understood that this is not to be construed as a limitation on the present utility model, and that the following embodiments provided herein may be combined with one another on a practical basis.

As shown, an underwater vehicle includes a battery compartment 100, a battery pack 200, and a thermally conductive assembly 300. The battery compartment 100 is a compartment for mounting the battery pack 200 among a plurality of compartments of an underwater vehicle. The battery compartment 100 includes a mounting cavity within which the battery pack 200 is disposed. The battery pack 200 may include one or more battery packs 201.

The heat conduction assembly 300 includes a heat conduction bridge 301 and a heat conduction pipe 302. The heat conduction bridge 301 includes a first heat conduction portion 304 connected to the battery pack 200, and a second heat conduction portion 305 extending from an end of the first heat conduction portion 304 to be bent toward the battery compartment segment 100. The second heat conducting portion 305 is connected to the battery compartment 100 to transfer heat of the first heat conducting portion 304 to the battery compartment 100.

The heat conduction pipes 302 are installed at the outer sides of the heat conduction bridges 301, and each of the heat conduction pipes 302 is connected to the battery pack 200 to transfer heat to the battery pack 200. The heat pipe 302 may be fixed to the heat bridge 301 in various manners, such as in some embodiments, the heat pipe 302 is fixed to the surface of the heat bridge 301 by gluing, screwing, and connected to the battery pack 200.

In some embodiments, the first heat conducting portion 304 is provided with a groove, the heat conducting tube 302 is disposed in the groove, and in order to ensure that the heat conducting tube 302 disposed in the groove can be connected to the battery pack 200, an outer surface of the heat conducting tube 302 exposed to the groove is at least flush with an outer surface of the heat conducting bridge 301. The heat conducting pipe 302 may be arranged to have a heat conducting efficiency at least higher than that of the heat conducting bridge 301. It will be appreciated that the provision of the heat pipes 302 in the heat conductive bridge 301 can provide the heat transfer efficiency of the heat transfer assembly 300.

In this embodiment, the heat conducting bridge 301 and the heat conducting pipe 302 are used as the components of the heat conducting assembly 300, so that the heat of the battery pack 200 can be transferred to the battery compartment 100 through the heat conducting bridge 301 and the heat conducting pipe 302, and then transferred to the external environment, so that the heat is dissipated by using a good heat dissipating medium in the external environment, and compared with the heat dissipation mode in the closed environment by setting a phase change material or the like in the related art, the heat dissipation efficiency of the passive heat dissipation mode in the battery compartment 100 can be greatly improved, thereby improving the technical problem of the heat dissipation efficiency of the passive heat dissipation mode in the battery compartment 100 of the underwater vehicle.

In some embodiments, the heat conducting tube 302 may be configured to have a higher heat conducting efficiency than the heat conducting bridge 301, and the heat conducting bridge 301 has a higher structural strength than the heat conducting tube 302, so that the heat conducting assembly 300 of the present utility model can use the heat conducting bridge 301 to ensure the structural strength and use the heat conducting tube 302 to increase the heat conducting efficiency. The problem of insufficient structural strength of the heat conduction assembly 300 due to the separate arrangement of the heat conduction pipe 302 is avoided. It will be appreciated that the structural strength may refer to the fracture resistance of the structure, i.e. the standard that a structural member can achieve under external loading in various use situations.

In some embodiments, the groove is disposed on the second heat conducting portion 305 in addition to the first heat conducting portion 304, that is, the heat conducting tube 302 on the first heat conducting portion 304 extends to the second heat conducting portion 305 along the groove. During heat transfer, the heat conduction pipe 302 provided on the second heat conduction portion 305 increases heat transfer efficiency in the heat transfer path.

In some embodiments, the heat-conducting bridge 301 includes two opposing second heat-conducting portions 305. The two second heat conducting portions 305 are respectively connected to one end of the first heat conducting portion 304 and are fixed to the battery compartment 100. And the two second heat conducting parts 305 and the first heat conducting part 304 together with the bulkhead of the battery compartment 100 enclose a cavity 303, and the cavity 303 can be used for ventilation or wiring of the battery pack 200 and the internal device of the aircraft. When the cavity 303 is used for ventilation, the air inlet and the air outlet may be designed differently, for example, by providing a cross section of the heat-conducting bridge 301, so that the cross section area at the air inlet is larger than the cross section area at the air outlet.

In some embodiments, a heat transfer pipe may be further disposed in the cavity 303, and a heat transfer medium may be disposed in the heat transfer pipe, and the heat transfer medium in the heat transfer pipe may be heated by the heat-conducting bridge 301 and the heat-conducting pipe 302 and transferred to other cabin segments to maintain the temperature of the other cabin segments.

It will be appreciated that, when the cavity 303 is changed, a manner may be adopted that does not affect the heat dissipation effect of the heat-conducting bridge 301 on the battery pack 200.

While the above embodiments are described with a focus on the heat conduction assembly 300, the present utility model further improves the transfer path related to the battery pack 200 side in order to further improve the efficiency of the entire heat transfer path of the underwater vehicle, and the following embodiments will describe the improvement points from the specific embodiments.

As shown in fig. 3 and 4, an underwater vehicle includes a battery compartment 100, a battery pack 200, and a heat conduction assembly 300. The battery compartment 100 is a compartment for mounting the battery pack 200 among a plurality of compartments of an underwater vehicle. The battery compartment 100 includes a mounting cavity within which the battery pack 200 is disposed.

The heat conduction assembly 300 includes a heat conduction bridge 301 and a heat conduction pipe 302. The heat conduction bridge 301 includes a first heat conduction portion 304 connected to the battery pack 200, and a second heat conduction portion 305 extending from an end of the first heat conduction portion 304 to be bent toward the battery compartment section. The second heat conducting part 305 is connected to the battery compartment to transfer heat of the first heat conducting part 304 to the battery compartment 100. The first heat conducting portion 304 is provided with a groove, the heat conducting tube 302 is disposed in the groove, and in order to ensure that the heat conducting tube 302 disposed in the groove can be connected with the battery pack 200, the outer surface of the heat conducting tube 302 exposed in the groove is at least flush with the outer surface of the heat conducting bridge 301.

The battery pack 200 may include one or more battery packs 201, the battery packs 201 including a plurality of battery cells 202 and a plurality of thermally conductive sheets 203. A plurality of the battery cells 202 are stacked. Each of the heat conductive sheets 203 includes a heat absorbing portion 205 and a heat transferring portion 204. The heat absorbing portion 205 is disposed between two adjacent cells 202, the heat transfer portion 204 is formed by bending and extending one end of the heat absorbing portion 205, which is close to the heat conducting tube 302, and the heat transfer portion 204 is connected to at least the heat conducting tube 302. In some embodiments, the heat transfer portion 204 is connected to the heat pipe 302 and the heat bridge 301. During operation of the battery pack 201, the battery cells 202 generate heat, but the heat between the two battery cells 202 is difficult to be discharged, and heat accumulation is easy to be caused, so that the performance of the battery pack 201 is affected. During heat transfer, the heat absorbing portion 205 can transfer heat between the two electrical cores 202 to the heat conducting assembly 300 through the heat transfer portion 204, so that heat accumulation between the electrical cores 202 is avoided.

In this embodiment, the heat-conducting sheet 203 is disposed in the battery pack 201, and the heat absorbing portion 205 of the heat-conducting sheet 203 is disposed between two electric cells 202, and the heat transfer portion 204 connected with the heat absorbing portion 205 is disposed in contact with the heat conducting component 300, so that the heat-conducting sheet 203 can absorb heat between two electric cells 202 and transfer the heat to the battery compartment 100 for heat dissipation, thereby avoiding heat accumulation between two adjacent electric cells 202, and improving heat dissipation efficiency of the battery pack 201.

In some embodiments, a thermally conductive silicone or a thermally conductive silicone grease or other thermally conductive material may be disposed between the electrical core 202 and the heat sink 205.

As shown in fig. 3, 5 and 5, in some embodiments, in order to install the heat-conducting fins 203, the battery pack 201 further includes a heat-conducting fixing frame 206 connected to a side of the battery pack 200 near the heat-conducting component 300, an end portion of the heat-conducting fixing frame 206 is fixed on the battery pack 201, a plurality of openings 207 are formed in the heat-conducting fixing frame 206, and the heat-conducting portion 204 of each heat-conducting fin 203 passes through the corresponding opening 207 and is connected to a side of the heat-conducting fixing frame 206 facing the heat-conducting component 300, so that by the above arrangement, a layer of heat-conducting surface 208 is formed on a side of the battery pack 201 near the heat-conducting component 300 by the plurality of heat-conducting portions 204, so as to facilitate the arrangement of the heat-conducting component 300 and the planning of the heat transfer path.

In some embodiments, the length of the heat sink 205 is greater than the length of the heat transfer portion 204, and the length of the heat transfer portion 204 is less than the length of the opening 207. It will be appreciated that the heat absorbing portion 205 is configured to absorb heat between two adjacent cells 202, and the heat absorbing efficiency is higher as the shape and size of the heat absorbing portion is closer to the shape and size of the side surface of the cell 202, and the heat transferring portion 204 is fixed on the heat conducting fixing frame 206 so as to be capable of penetrating out from the opening 207, and is finally connected to the heat conducting component 300, and the length of the heat transferring portion 204 may be set smaller than the length of the heat transferring portion 204 due to the shape and size of the heat conducting component 300 and the opening 207.

In some embodiments, the heat transfer portion 204 is attached to a portion of the heat conductive pipe 302 that is located at the first heat conductive portion 304, and the length of the portion is not less than the length of the heat transfer portion 204.

In some embodiments, the battery pack 200 includes two battery packs 201 disposed opposite to each other, and two heat conductive members 300 disposed opposite to each other, wherein the two battery packs 201 are disposed between the two heat conductive members 300, that is, the battery packs 201 are connected between the plurality of heat conductive pipes 302 and the heat conductive bridges 301 of the two heat conductive members 300, and the heat conductive bridges 301 and the heat conductive pipes 302 of each of the heat conductive members 300 are connected with the heat transfer portion 204 of the battery pack 201. It will be appreciated that the length of the heat-conducting bridge 301 may be the same as the length of the battery pack 201 to sufficiently dissipate heat from various regions of the battery pack 201.

In some embodiments, a heat transfer sheet 306 is disposed between the heat transfer portion 204 and the heat transfer tube 302, and the heat transfer sheet 306 is connected to the heat transfer bridge 301 and the heat transfer tube 302. It will be appreciated that this arrangement avoids being limited by the shape of the heat transfer portion 204 and not being in sufficient contact with the heat transfer assembly 300, i.e. avoids the heat transfer portion 204 not being thermally connected to both the heat pipes 302 and the heat transfer bridges 301. The heat transfer sheet may be a thermally conductive silicone.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model in order that the detailed description of the principles and embodiments of the utility model may be implemented in conjunction with the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims

1. An underwater vehicle, comprising:

a battery compartment section including a mounting cavity;

the battery pack is arranged in the mounting cavity; and

2. The underwater vehicle of claim 1, wherein the heat conduction assembly comprises a heat conduction bridge fixed to the battery compartment and a plurality of heat conduction pipes mounted outside the heat conduction bridge, each of the heat conduction pipes being connected to the battery pack.

3. The underwater vehicle as in claim 2, wherein the heat transfer bridge is provided with a groove, the heat transfer tube is disposed in the groove, and an outer surface of the heat transfer tube exposed to the groove is flush with an outer surface of the heat transfer bridge.

4. An underwater vehicle as claimed in claim 3, characterised in that the heat conducting bridge comprises a first heat conducting portion connected to the battery pack and a second heat conducting portion extending from an end of the first heat conducting portion in a bent manner towards the battery compartment section, the second heat conducting portion being connected to the battery compartment section;

5. The underwater vehicle of claim 4, wherein the thermally conductive bridge comprises two opposing second thermally conductive portions, the two second thermally conductive portions and the first thermally conductive portion enclosing a cavity with a bulkhead of the battery compartment.

6. The underwater vehicle of claim 2, wherein the battery pack comprises a plurality of electrical cells, the battery pack further comprising:

7. The underwater vehicle of claim 6, wherein the battery pack further comprises a heat conductive fixing frame connected to a side of the battery pack near the heat conductive assembly, the heat conductive fixing frame is provided with a plurality of openings, and the heat transfer portion of each heat conductive sheet passes through the corresponding opening and is connected to a side of the heat conductive fixing frame facing the heat conductive assembly.

8. The underwater vehicle as in claim 7, wherein the length of the heat sink portion is greater than the length of the opening.

9. The underwater vehicle of claim 6, wherein the heat transfer bridge comprises a first heat transfer portion and a second heat transfer portion, the second heat transfer portion being connected between the battery compartment section and the first heat transfer portion, the heat transfer tube being disposed at least in the first heat transfer portion and the second heat transfer portion;

10. The underwater vehicle as in claim 2, comprising two of the heat conductive assemblies disposed opposite each other, the battery pack being connected between a plurality of the heat conductive pipes of the two heat conductive assemblies.