Immersed battery pack

Abstract

The utility model relates to the technical field of battery PACK equipment cooling, in particular to an immersed battery pack, which comprises a shell, a cooling mechanism, a plurality of battery modules and a covering mechanism, the cooling mechanism comprises a snake-shaped pipe, a plurality of annular pipes, two shunt pipes, a liquid outlet pipe and a liquid inlet pipe, the bottom of the shell is provided with a snake-shaped groove, and the inner side wall of the shell is provided with a plurality of annular grooves. An external pipeline is respectively connected with the liquid inlet pipe and the liquid outlet pipe, so that cooling liquid enters the liquid inlet pipe, further enters the coiled pipe and flows into the annular pipes through the corresponding shunt pipes, then the cooling liquid flows out of the liquid outlet pipe, the multiple battery modules are immersed by the cooling liquid, heat is transferred to the coiled pipe and the annular pipes during heat dissipation, and the heat dissipation efficiency is improved. Then heat is absorbed through the cooling liquid, heat exchange cooling is rapidly and efficiently carried out through continuous circulating flow of the cooling liquid, the cooling effect is good, and then the operation efficiency of the battery is indirectly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery PACK equipment cooling technical field especially, relates to a kind of immersed battery package. BACKGROUND

[0002] Battery PACK package, i.e. battery assembly, refers to the multiple battery monomer according to specific series parallel mode combination, and join protection circuit module, battery management system and other necessary supporting equipment, finally packing, encapsulation and assembly finished battery assembly, battery runs and generates heat, battery temperature rises and will lead to operating efficiency reduction, and there is explosion risk.

[0003] In prior art, by placing battery pack in shell, then setting cold liquid pipe in shell, through cold liquid pipe and battery pack surface contact, and then through heat exchange to cool battery pack.

[0004] But currently cooling pipe and battery module contact surface are less, leading to poor heat exchange cooling effect, and then indirectly reducing the operating efficiency of battery. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of immersed battery package, solve the problem in prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a kind of immersed battery package, including shell, cooling mechanism, multiple battery modules and cover mechanism, the cooling mechanism includes serpentine pipe, multiple annular pipes, two shunt pipes, liquid outlet pipe and liquid inlet pipe, the bottom of the shell has serpentine groove, the inner side wall of the shell has multiple annular grooves, the serpentine pipe is set in the serpentine groove, multiple annular pipes are set in corresponding annular groove respectively, two shunt pipes are communicated with the serpentine pipe and multiple annular pipes respectively, the liquid outlet pipe and the liquid inlet pipe are communicated with the serpentine pipe respectively, and the liquid outlet pipe and the liquid inlet pipe are located at the front end of the shell respectively, and multiple battery modules are set in the inside of the shell respectively.

[0007] The cooling mechanism further comprises a plurality of partitions, a plurality of first connecting pipes, a first horizontal pipe, a plurality of second connecting pipes, a second horizontal pipe, a first vertical pipe and a second vertical pipe, each of the partitions has a flow channel inside, the plurality of partitions are arranged inside the shell and are located between the corresponding battery modules respectively, one end of each of the plurality of first connecting pipes is in communication with the corresponding partition, the other end of each of the plurality of first connecting pipes penetrates the shell and is in communication with the first horizontal pipe respectively, the first horizontal pipe is located at the front end of the shell, the two ends of the first vertical pipe are in communication with the first horizontal pipe and the liquid inlet pipe respectively, one end of each of the plurality of second connecting pipes is in communication with the corresponding partition, the other end of each of the plurality of second connecting pipes penetrates the shell and is in communication with the second horizontal pipe respectively, the second horizontal pipe is located at the front end of the shell and is located below the first horizontal pipe, and the two ends of the second vertical pipe are in communication with the second horizontal pipe and the liquid outlet pipe respectively.

[0008] Each of the battery modules comprises an energy storage unit and two fixing frames, the two fixing frames are symmetrically arranged inside the shell, and the energy storage unit is arranged inside the shell and located between the two fixing frames.

[0009] The cover mechanism comprises a top plate, an annular frame and a plurality of bolts, the top plate covers the upper end of the shell, the annular frame is fixedly sleeved outside the top plate, and the plurality of bolts penetrate the annular frame and are located inside the shell respectively.

[0010] The immersion type battery pack further comprises a BMS mounting groove arranged at the front end of the shell.

[0011] The immersion type battery pack of the utility model, connect with the liquid inlet pipe and the liquid outlet pipe respectively, make the cooling liquid enter the liquid inlet pipe, then enter the serpentine pipe, and flow into a plurality of annular pipes through the corresponding shunt pipe, then the cooling liquid flows out from the liquid outlet pipe, whereby the cooling liquid immerses a plurality of battery modules, and heat is transferred to the serpentine pipe and a plurality of annular pipes during heat dissipation, then heat is absorbed through the cooling liquid, and heat exchange cooling is carried out quickly and efficiently through the continuous circulation of the cooling liquid, and the cooling effect is good, thereby indirectly improving the operation efficiency of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced.

[0013] Figure 1 It is the overall structure schematic view of the utility model.

[0014] Figure 2 This is a partial structural schematic diagram of the present invention.

[0015] Figure 3 This is a partial top view of the present invention.

[0016] Figure 4 This is the utility model Figure 3 A sectional view along line AA.

[0017] Figure 5 This is a side view of the casing of this utility model.

[0018] Figure 6 This is a schematic diagram of the shell structure of this utility model.

[0019] 101-Shell, 102-BMS mounting slot, 103-Serpentine tube, 104-Annular tube, 105-Diverter tube, 106-Outlet tube, 107-Inlet tube, 108-Baffle plate, 109-First connecting tube, 110-First horizontal tube, 111-Second connecting tube, 112-Second horizontal tube, 113-First vertical tube, 114-Second vertical tube, 115-Energy storage unit, 116-Fixing frame, 117-Top plate, 118-Annular frame, 119-Bolt, 120-Serpentine groove, 121-Annular groove, 122-Flow channel. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1 to 6 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a partial structural schematic diagram of the present invention. Figure 3 This is a partial top view of the present invention. Figure 4 This is the utility model Figure 3 AA-line sectional view, Figure 5 This is a side view of the casing of this utility model. Figure 6 This is a schematic diagram of the shell structure of this utility model.

[0022] The utility model provides a kind of submerged battery pack, including shell 101, cooling mechanism, multiple battery modules, cover mechanism and BMS mounting groove 102, the cooling mechanism includes serpentine pipe 103, multiple annular pipe 104, two shunt pipe 105, liquid outlet pipe 106, liquid inlet pipe 107, multiple baffle 108, multiple first connecting pipe 109, first cross pipe 110, multiple second connecting pipe 111, second cross pipe 112, first vertical pipe 113 and second vertical pipe 114, every the battery module includes energy storage unit 115 and two fixing frame 116, the cover mechanism includes top plate 117, annular frame 118 and multiple bolts 119, the bottom of shell 101 has serpentine groove 120, the inner side wall of shell 101 has multiple annular grooves 121, every the baffle 108 inside has flow channel 122.

[0023] For this specific implementation, the external pipeline is connected with the liquid inlet pipe 107 and the liquid outlet pipe 106 respectively, so that the cooling liquid enters the liquid inlet pipe 107, and then enters the serpentine pipe 103, and flows into multiple annular pipes 104 through the corresponding shunt pipe 105, and then the cooling liquid flows out from the liquid outlet pipe 106. In this way, the cooling liquid immerses multiple battery modules, and when dissipating heat, the heat is transferred to the serpentine pipe 103 and multiple annular pipes 104, and then the heat is absorbed by the cooling liquid. Through the continuous circulation of the cooling liquid, heat exchange cooling is carried out quickly and efficiently, and the cooling effect is good, thereby indirectly improving the operating efficiency of the battery.

[0024] Wherein, the bottom of the shell 101 has a serpentine groove 120, the inner side wall of the shell 101 has multiple annular grooves 121, the serpentine pipe 103 is arranged in the serpentine groove 120, multiple annular pipes 104 are arranged in the corresponding annular grooves 121, two shunt pipes 105 are in communication with the serpentine pipe 103 and multiple annular pipes 104, the liquid outlet pipe 106 and the liquid inlet pipe 107 are in communication with the serpentine pipe 103, and the liquid outlet pipe 106 and the liquid inlet pipe 107 are located at the front end of the shell 101, and multiple battery modules are arranged in the interior of the shell 101. Connect the external pipeline with the liquid inlet pipe 107 and the liquid outlet pipe 106 respectively, so that the cooling liquid enters the liquid inlet pipe 107, and then enters the serpentine pipe 103, and flows into multiple annular pipes 104 through the corresponding shunt pipe 105, and then the cooling liquid flows out from the liquid outlet pipe 106. In this way, the cooling liquid immerses multiple battery modules, and when dissipating heat, the heat is transferred to the serpentine pipe 103 and multiple annular pipes 104, and then the heat is absorbed by the cooling liquid. Through the continuous circulation of the cooling liquid, heat exchange cooling is carried out quickly and efficiently, and the cooling effect is good, thereby indirectly improving the operating efficiency of the battery.

[0025] Secondly, each of the baffles 108 has a flow channel 122 inside, a plurality of the baffles 108 are arranged in the inside of the shell 101 respectively and are located between the corresponding battery modules respectively, one end of a plurality of the first connecting pipes 109 is communicated with the corresponding baffle 108 respectively, the other end of a plurality of the first connecting pipes 109 penetrates the shell 101 respectively and is communicated with the first horizontal pipe 110 respectively, the first horizontal pipe 110 is located at the front end of the shell 101, both ends of the first vertical pipe 113 are communicated with the first horizontal pipe 110 and the liquid inlet pipe 107 respectively, one end of a plurality of the second connecting pipes 111 is communicated with the corresponding baffle 108 respectively, the other end of a plurality of the second connecting pipes 111 penetrates the shell 101 respectively and is communicated with the second horizontal pipe 112 respectively, the second horizontal pipe 112 is located at the front end of the shell 101 and is located below the first horizontal pipe 110, both ends of the second vertical pipe 114 are communicated with the second horizontal pipe 112 and the liquid outlet pipe 106 respectively. A plurality of the baffles 108 are in contact with the corresponding battery modules respectively, a plurality of the battery modules are separated by a plurality of the baffles 108, thereby improving the cooling efficiency, and after the cooling liquid enters the liquid inlet pipe 107, it enters the first horizontal pipe 110 through the first vertical pipe 113, then enters a plurality of the first connecting pipes 109, and then enters the corresponding flow channel 122, then the cooling liquid enters the second horizontal pipe 112 through a plurality of the second connecting pipes 111, and then flows into the second vertical pipe 114, and then flows out from the liquid outlet pipe 106, thereby continuously circulating, so that the cooling liquid continuously takes away heat, thereby further improving the cooling and heat dissipation effect through the arrangement of a plurality of the baffles 108.

[0026] Meanwhile, two of the fixing frames 116 are symmetrically arranged in the inside of the shell 101, the energy storage unit 115 is arranged in the inside of the shell 101 and is located between the two fixing frames 116. The energy storage unit 115 is fixed by the two fixing frames 116, so as to avoid the energy storage unit 115 from shaking in the shell 101, the energy storage unit 115 is composed of a shell and a plurality of battery monomers, and a plurality of battery cells.

[0027] In addition, the top plate 117 covers the upper end of the shell 101, the annular frame 118 is fixedly sleeved outside the top plate 117, a plurality of the bolts 119 penetrate the annular frame 118 respectively and are located in the inside of the shell 101. The top plate 117 and the annular frame 118 are fixed at the upper end of the shell 101 through the arrangement of a plurality of the bolts 119, when it is needed to disassemble the top plate 117, only the bolts 119 need to be disassembled, so that the top plate 117 can be removed.

[0028] And, the BMS mounting groove 102 is arranged at the front end of the shell 101. The BMS mounting groove 102 is used for fixing and mounting a BMS mainboard, and the BMS mainboard can perform battery management, collect key data such as voltage, current and temperature of a battery pack in real time, and ensure that the battery pack operates in an optimal state.

[0029] When the immersed battery pack is used, the external pipeline is connected with the liquid inlet pipe 107 and the liquid outlet pipe 106 respectively, the cooling liquid enters the liquid inlet pipe 107, then enters the serpentine pipe 103, and flows into the plurality of annular pipes 104 through the corresponding shunt pipe 105, and then the cooling liquid flows out of the liquid outlet pipe 106, so that the cooling liquid immerses the plurality of battery modules, and when radiating heat, the heat is transferred to the serpentine pipe 103 and the plurality of annular pipes 104, and then the heat is absorbed by the cooling liquid, and through the continuous circulation of the cooling liquid, heat exchange and cooling are quickly and efficiently carried out, the cooling effect is good, and the operation efficiency of the battery is indirectly improved; the plurality of partitions 108 are respectively in contact with the corresponding battery modules, the plurality of battery modules are separated by the plurality of partitions 108, so that the cooling efficiency is improved, and after the cooling liquid enters the liquid inlet pipe 107, the cooling liquid enters the first horizontal pipe 110 through the first vertical pipe 113, then enters the plurality of first connecting pipes 109, and then enters the corresponding flow channel 122, and then the cooling liquid enters the second horizontal pipe 112 through the plurality of second connecting pipes 111, and then flows into the second vertical pipe 114, and then flows out of the liquid outlet pipe 106, so that the cooling liquid continuously carries away heat, and the cooling and heat dissipation effect is further improved through the arrangement of the plurality of partitions 108; the energy storage unit 115 is fixed by the two fixing frames 116, so that the energy storage unit 115 is prevented from shaking in the shell 101, the energy storage unit 115 is composed of an outer shell and a plurality of battery monomers, and a plurality of battery cells; the top plate 117 and the annular frame 118 are fixed at the upper end of the shell 101 through the plurality of bolts 119, and when the top plate 117 needs to be disassembled, the top plate 117 can be removed by disassembling the plurality of bolts 119.

[0030] The above disclosure is only one or more preferred embodiments of the present application, and cannot limit the scope of the present application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope of the present application.

Claims

1. An immersed battery pack, characterized in that, it comprises a shell, a cooling mechanism, a plurality of battery modules and a cover mechanism; the cooling mechanism comprises a serpentine pipe, a plurality of ring pipes, two shunt pipes, an outlet pipe and an inlet pipe, the bottom of the shell has a serpentine groove, the inner side wall of the shell has a plurality of ring grooves, the serpentine pipe is arranged in the serpentine groove, a plurality of the ring pipes are respectively arranged in the corresponding ring grooves, the two shunt pipes are respectively communicated with the serpentine pipe and a plurality of the ring pipes, the outlet pipe and the inlet pipe are respectively communicated with the serpentine pipe, and the outlet pipe and the inlet pipe are respectively located at the front end of the shell, and a plurality of the battery modules are respectively arranged in the interior of the shell.

2. The immersed battery pack according to claim 1, characterized in that, the cooling mechanism further comprises a plurality of partitions, a plurality of first connecting pipes, a first horizontal pipe, a plurality of second connecting pipes, a second horizontal pipe, a first vertical pipe and a second vertical pipe, each of the partitions has a flow channel in the interior, a plurality of the partitions are respectively arranged in the interior of the shell and are respectively located between the corresponding battery modules, one end of each of the plurality of first connecting pipes is respectively communicated with the corresponding partition, the other end of each of the plurality of first connecting pipes is respectively penetrated through the shell and is respectively communicated with the first horizontal pipe, the first horizontal pipe is located at the front end of the shell, the two ends of the first vertical pipe are respectively communicated with the first horizontal pipe and the inlet pipe, one end of each of the plurality of second connecting pipes is respectively communicated with the corresponding partition, the other end of each of the plurality of second connecting pipes is respectively penetrated through the shell and is respectively communicated with the second horizontal pipe, the second horizontal pipe is located at the front end of the shell and is located below the first horizontal pipe, and the two ends of the second vertical pipe are respectively communicated with the second horizontal pipe and the outlet pipe.

3. The immersed battery pack according to claim 2, characterized in that, each of the battery modules comprises an energy storage unit and two fixing frames, the two fixing frames are respectively and symmetrically arranged in the interior of the shell, and the energy storage unit is arranged in the interior of the shell and is located between the two fixing frames.

4. The immersed battery pack according to claim 3, characterized in that, the cover mechanism comprises a top plate, an annular frame and a plurality of bolts, the top plate covers the upper end of the shell, the annular frame is fixedly sleeved on the exterior of the top plate, and the plurality of bolts are respectively penetrated through the annular frame and are respectively located in the interior of the shell.

5. The immersed battery pack according to claim 4, characterized in that, the immersed battery pack further comprises a BMS mounting groove, and the BMS mounting groove is arranged at the front end of the shell.

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