CN111164785B - Power supply device - Google Patents
Power supply device Download PDFInfo
- Publication number
- CN111164785B CN111164785B CN201880062896.2A CN201880062896A CN111164785B CN 111164785 B CN111164785 B CN 111164785B CN 201880062896 A CN201880062896 A CN 201880062896A CN 111164785 B CN111164785 B CN 111164785B
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- China
- Prior art keywords
- housing
- case
- opening
- power supply
- supply device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Provided is a power supply device which is configured to: can be assembled simply and reliably prevent damage caused by immersion in water over a long period of time. An upper opening (11) of a battery-containing housing case (10) is closed by a lid member (20), and the lid member (20) forms, in a housing (9): an inflow opening (71) and a discharge opening (72), and the top cover part (20) is provided with: a guide groove (73) for guiding the immersion water from the inlet opening (71) to the outlet opening (72), and is further configured such that: the water path resistance of the discharge opening (72) is made smaller than that of the inflow opening (71), so that the immersion water can be rapidly discharged to the outside.
Description
Technical Field
The present invention relates to a power supply device having a secondary battery cell (cell) incorporated therein, and more particularly, to a power supply device having a waterproof structure suitable for outdoor use.
Background
The power supply device requires a waterproof structure according to the application. For example, in a power supply device used outdoors such as a bicycle and an electric motorcycle, it is impossible to completely eliminate: all of the use environments are water hazards, requiring the housing to have a waterproof construction. This is because the water entering the case causes various kinds of troubles such as corrosion, electric leakage, short circuit, and malfunction of the electronic circuit.
In order to prevent damage due to water immersion, a power supply device has been developed in which a casing is formed into a sealed waterproof structure. (see patent documents 1 and 2)
In the above-described power supply devices, the case is sealed with a filler to have a watertight structure, or the connector is fixed to the case with a filler to have a watertight structure. A power supply device in which a housing or a connector is formed in a completely sealed structure includes: the filler is deteriorated with time to cause the water to be impregnated. In addition, opening and closing the housing during maintenance is time-consuming. In particular, there are also: when the opened casing is re-closed, water may infiltrate into the casing once it is not completely closed.
Documents of the prior art
Patent literature
Patent document 1: japanese patent laid-open publication No. 2011-103259
Patent document 2: japanese patent laid-open No. 2006-035941
Disclosure of Invention
Power supply devices in which a housing is sealed in a watertight structure include: the assembly and maintenance are labor and time consuming. In addition, there are also disadvantages as follows: since the filler is soaked in water as soon as it is aged, it is difficult to prevent the damage caused by the soaking in water for a long time.
The present invention has been made to solve the drawbacks of the conventional power supply device having a waterproof structure, and an object of the present invention is to provide a power supply device having a waterproof structure, in which a housing of the power supply device is easily assembled and damage due to immersion in water can be prevented for a long time.
A power supply device according to a first aspect of the present invention is a power supply device in which a battery cell is built in a case, the case including: a storage case having an opening at an upper portion thereof and having the battery cells built therein; and a lid top portion that closes an upper opening portion of the storage case. The top cover portion is formed: an inflow opening for allowing external water to flow into the housing; and a discharge opening for discharging the immersion water flowing in from the inflow opening to the outside, and having a water path resistance smaller than that of the inflow opening. Further, the present invention has the following features: the top cover portion includes a guide groove for guiding the immersion water flowing from the inflow opening to the discharge opening.
The above power supply device has the following features: the housing is easy to assemble and can prevent damage caused by immersion in water for a long time. This is because the above power supply device is configured such that the housing is composed of the housing case and the top lid portion, the top lid portion is provided with the inflow opening and the discharge opening, and the water entering the inside from the inflow opening of the top lid portion provided in the housing can be discharged to the outside from the discharge opening, which is provided in the top lid portion and has a smaller water path resistance than the inflow opening. In particular, the above power supply device has the following features: since the top lid portion is disposed above the housing case in which the battery is housed, and the inflow opening and the discharge opening are provided in the top lid portion, the immersion water can be discharged from the top lid portion to the outside, and therefore, the immersion water does not flow into the housing case in which the battery is housed, and damage to the battery due to the immersion water can be effectively prevented. In addition, the following features are achieved: since the top cover portion provided with the inflow opening and the discharge opening is coupled to the housing case and assembled, both the inflow opening and the discharge opening can be provided in the housing, and the assembly can be performed easily. In particular, since the above power supply device does not have a sealed structure formed by using a filler or the like as in the conventional art, the waterproof performance is not lowered due to the deterioration of the filler, an excellent waterproof structure can be maintained for a long time, and the waterproof structure can be stably realized even in a severe environment such as a temperature. Further, the above power supply device can also realize the following features: since the discharge opening is provided in the top lid portion, the discharge valve of the battery is opened, and high-temperature and high-pressure gas discharged from the battery can be smoothly discharged from the case to the outside, thereby achieving higher safety.
In addition, according to the power supply device of the second aspect, in addition to the above configuration, an output terminal may be provided at a bottom portion of the housing.
In addition, according to the power supply device of the third aspect, in addition to any of the above configurations, the top cover portion may be formed of a plurality of members, and the inflow opening may be provided in: the discharge opening is provided at a critical position of a member constituting the cap portion: a critical portion between the cover dome section and the receiving case.
Further, according to the power supply device of the fourth aspect, in addition to the above configuration, the top cover portion may include: a 3 rd housing disposed above the accommodation housing; a 2 nd case disposed above the 3 rd case; and a 1 st case disposed above the 2 nd case, the inflow opening being provided in: the 1 st shell and the 2 nd shell.
In addition, according to the power supply device of the fifth aspect, in addition to the above configuration, the discharge opening may be provided between the 1 st case and the storage case.
Further, according to the power supply device of the sixth aspect, in addition to the above configuration, the 1 st housing may include: and an outer peripheral wall disposed above an upper opening edge of the housing case, wherein a discharge opening is provided between the outer peripheral wall and the housing case.
In addition, according to the power supply device of the seventh aspect, in any of the above configurations, the inflow opening and the discharge opening may be gaps extending along an upper opening portion of the housing case.
In addition, according to the power supply apparatus of the eighth aspect, in addition to the above configuration, the 3 rd housing may include: an insertion peripheral wall which is inserted from an upper opening of the housing case in close contact with the inside; a bottom plate connected to an upper edge of the insertion peripheral wall; and an inner peripheral wall provided along an inner side of the bottom plate, the insertion peripheral wall extending to an inner side of the outer peripheral wall of the 1 st housing, a gap being provided between the insertion peripheral wall and the outer peripheral wall as a discharge opening, the 3 rd housing being provided with: the bottom plate portion serves as the guide groove of the groove bottom.
In addition, according to the power supply device of the ninth aspect, in addition to the above arbitrary configuration, a bottom drain port may be provided at the bottom of the casing.
Drawings
Fig. 1 is a perspective view showing a power supply device according to an embodiment of the present invention.
Fig. 2 is a perspective view of the power supply device of fig. 1 as viewed obliquely from below.
Fig. 3 is an exploded perspective view of the power supply device of fig. 1.
Fig. 4 is an exploded perspective view of the power supply device of fig. 3 as viewed obliquely from below.
Fig. 5 is a cross-sectional view of the power supply device of fig. 1 taken along line V-V.
Fig. 6 is a partially enlarged cross-sectional view taken along line VI-VI of the power supply device of fig. 1.
Fig. 7 is an enlarged sectional view of the cover dome section shown in fig. 5.
Fig. 8 is an exploded perspective view of the top cover portion.
Fig. 9 is an exploded perspective view showing a state where the blocking portion is inserted into the frame portion of fig. 8.
Fig. 10 is an exploded perspective view of the top cover portion of fig. 8 as viewed obliquely from below.
Fig. 11 is an exploded perspective view of the battery assembly of fig. 4 with the metal plate removed.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify configurations for embodying the technical ideas of the present invention, and the present invention is not limited to the following. In addition, the components shown in the claims are by no means specific to the components of the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the components described in the embodiments are not intended to limit the scope of the present invention to these values unless otherwise specified, but are merely illustrative examples. In addition, the sizes, positional relationships, and the like of the components shown in the drawings are exaggerated in some cases for the purpose of clarity of description. In the following description, the same names and symbols denote the same or similar components, and detailed description thereof will be omitted as appropriate. Further, each element constituting the present invention may be a system in which a plurality of elements are constituted by the same component and one component is used as a plurality of elements, or conversely, a function of one component may be shared by a plurality of components. Note that the contents described in some of the embodiments and the embodiments can be applied to other embodiments and the embodiments.
For the power supply devices shown below, the main pair is: an example of the present invention will be described in which the present invention is applied to a driving power supply for an electric vehicle such as an electric vehicle or an electric cart that travels only by a motor. The power supply device of the present invention may be used for a hybrid vehicle that runs by both an engine and a motor, or for an application requiring a large output other than an electric vehicle, for example, a power storage device for home use or factory use.
(embodiment mode 1)
Fig. 1 to 6 show a power supply device 100 according to embodiment 1. Among these drawings, fig. 1 is a perspective view showing a power supply device 100 according to an embodiment of the present invention, fig. 2 is a perspective view of the power supply device 100 of fig. 1 as viewed obliquely from below, fig. 3 is an exploded perspective view of the power supply device 100 of fig. 1, fig. 4 is an exploded perspective view of the power supply device 100 of fig. 3 as viewed obliquely from below, fig. 5 is a cross-sectional view taken along the V-V line of the power supply device 100 of fig. 1, and fig. 6 is a partially enlarged cross-sectional view taken along the VI-VI line of the power supply device of fig. 1.
(outer cover 9)
The power supply device 100 shown in fig. 1 to 6 incorporates a battery assembly 40 inside a case 9. The housing 9 includes a lid portion 20 and a cylindrical housing case 10, and an upper opening 11 of the housing case 10 is closed by the lid portion 20. The battery assembly 40 is provided in the housing case 10, and the housing case 10 is formed in a cylindrical shape using a metal such as aluminum. The cylindrical storage case 10 closes the lower opening portion 12 by the bottom lid portion 30. Although the storage case 10 shown in the drawings closes the lower opening portion 12 by the bottom lid portion 30, the bottom lid portion and the storage case may be molded as an integral structure.
(inflow opening 71, discharge opening 72)
The housing 9 is not sealed in a watertight configuration. Instead of forming the critical part of the members constituting the case into a water-tight structure by using a filler or the like, the case 9 is provided with an inflow opening 71 for water at the critical position of the enclosing member constituting the case 9, and the immersion water from the inflow opening 71 is discharged to the outside through a discharge opening 72. The structure is as follows: the immersion water is discharged from the discharge opening 72 to the outside without adversely affecting internal components such as the battery cell (cell) 1. Inside the housing 9 are provided: a guide groove 73 for guiding the immersion water from the inflow opening 71 to the discharge opening 72. In the power supply device 100, both the inlet opening 71 and the outlet opening 72 are formed in the lid portion 20 to prevent the immersion water from flowing into the housing case 10. Specifically, in the power supply device 100 shown in the drawing, the inflow opening 71 is provided in the top lid portion 20, and the discharge opening 72 is provided in a critical portion between the top lid portion 20 and the storage case 10, thereby preventing: water enters the housing case 10 containing the battery assembly 40.
(Top cover part 20)
The lid dome section 20 is not constituted by 1 member to be integrally molded. The entire body can be integrally molded by plastic or the like to be composed of 1 member, but the top cover portion restricts the degree of freedom in design and shape, and cannot realize a high-grade and beautiful design. Further, if the top lid section provided with the handle is integrally molded, the mold structure becomes difficult, and the shape is also limited, so that a desired shape cannot be molded.
The top cover portion 20 shown in fig. 5 and 6 is constituted by a plurality of members. The top cover 20 is not sealed with a filler to form a watertight structure at the joint between the members, but has an inflow opening 71 defined by a gap between the members. In addition, the gap formed at the connection portion between the top cover portion 20 and the housing case 10 is used as the discharge opening 72, so that the immersion water from the inflow opening 71 is discharged to the outside without entering the inside of the housing case 10. The top cover 20 shown in the drawings is composed of a plurality of members including a 1 st case 21, a 2 nd case 22, and a 3 rd case 23, and is provided as a high-level design of the handle portion 28: beautiful appearance and convenient carrying. Further, the structure is: each housing can be efficiently molded by a mold having a simple structure. Further, the top lid portion 20 is not provided with a water-tight structure by a filler, and thus a structure that can be easily and efficiently mass-produced can be realized.
In the housing 9 in which the lid portion 20 is formed of a plurality of members, the inlet and outlet openings 71 and 72 are formed by the lid portion 20, and the immersion water from the inlet opening 71 of the lid portion 20 is smoothly discharged from the outlet opening 72. Specifically, the following structure is provided: the top lid portion 20 forms the inflow opening 71 through a gap between the members constituting the top lid portion 20, and forms the discharge opening 72 through a gap between the lower end edge of the top lid portion 20 and the storage case 10, so that the immersion water does not flow into the storage case 10. In order to prevent the immersion water from staying in the casing 9, the water path resistance of the inlet opening 71 is made larger than the water path resistance of the outlet opening 72, in other words, the water path resistance of the outlet opening 72 is made smaller than the water path resistance of the inlet opening 71. With this housing 9, the amount of water discharged through the discharge opening 72 is larger than the amount of water flowing into the housing 9 through the inflow opening 71 per unit time, so that the immersion water flowing in from the inflow opening 71 is rapidly discharged from the housing 9, and the immersion water does not stagnate in the housing 9. Further, the inflow opening 71 and the discharge opening 72 are: a gap extending along the upper opening 11 of the storage case 10. Since the inflow opening 71 and the discharge opening 72 are provided along the upper opening 11 of the storage case 10, the power supply device can quickly discharge the immersion water flowing in from the entire circumference.
Fig. 5 and 6 are cross-sectional views of the power supply device 100 shown in fig. 1 taken along mutually orthogonal directions, and fig. 6 is an enlarged partial cross-sectional view of the upper portion. Fig. 7 is an enlarged cross-sectional view of a main portion of fig. 5. Fig. 8 to 10 are exploded perspective views of the lid dome section 20. The top cover portion 20 shown in the above figures is: the 3-layer structure of the 1 st case 21, the 2 nd case 22, and the 3 rd case 23 is such that the 3 rd case 23 is disposed on the storage case 10, the 2 nd case 22 is disposed on the 3 rd case 23, and the 1 st case 21 is disposed on the 2 nd case 22. The 3 rd case 23 is: a frame shape formed by integrally molding a handle frame 24 covering the lower surface of the handle portion 28, and the 3 rd housing 23 has: a frame portion of the base housing disposed above the storage housing 10. The 2 nd case 22 is: and a sealing portion fixed to the 3 rd case 23 and sealing the frame opening 25 of the 3 rd case 23. The 1 st case 21 is: a cover portion disposed on the 2 nd housing 22 and provided with an upper surface of the grip portion 28.
The 1 st, 2 nd, and 3 rd cases 21, 22, and 23 are made by molding plastic. The top lid portion 20 is provided with a handle portion 28 on an upper surface. The grip portion 28 includes a handle portion 28A extending in the horizontal direction, an arch-shaped coupling portion 28B coupled to one end of the handle portion 28A, and a standing coupling portion 28C coupled to the other end. The handle portion 28 is configured to: the 1 st case 21 constitutes an outer side, and the 3 rd case 23 constitutes an inner side.
(case 1: 21)
The 1 st housing 21 integrally forms an outer peripheral wall 21A and an outer side of the handle portion 28, wherein the outer peripheral wall 21A is configured to: the handle portion 28 is placed on the opening edge of the upper opening 11 of the storage case 10, and is connected to the outer peripheral wall 21A. As shown in fig. 5 to 7, the 1 st casing 21 is fixed to the 3 rd casing 23 with the 2 nd casing 22 interposed therebetween, and a gap is provided between the 1 st casing and the outer peripheral edge of the 2 nd casing 22 as an inflow opening 71. Since the outer shape of the top lid portion 20 is formed in a quadrangular shape, the entire shape of the 2 nd case 22 is also formed in a quadrangular shape, and the outer peripheral edge of 4 sides is formed. In the top lid portion 20 shown in the drawing, the inflow openings 71 are not provided on all the outer peripheries of 4 sides of the 2 nd housing 22, but the inflow openings 71 are provided on the outer peripheries of 3 sides, and the inflow openings are not provided on the outward periphery 22a of 1 side close to the inner surface of the upright coupling portion 28C of the handle portion 28. This is because the upper end surface of the upward-facing outer peripheral edge 22a is disposed at a position close to the inner surface of the grip portion 28 of the 3 rd housing 23, and the gap with the 3 rd housing 23 is covered from above by the inner surface of the grip portion 28, thereby preventing water from flowing into the gap.
(No. 2 case 22)
The 2 nd case 22 is: the 3 rd case 23 has a plate shape closing the frame opening 25, and the center portion is a bent portion 22A protruding downward, so that the distance between the center portion of the 2 nd case 22 and the center portion of the grip portion 28 is increased. This shape has the following features: the user can smoothly carry the finger under the grip portion 28 by increasing the gap under the grip portion 28, instead of projecting the grip portion 28 upward.
The 2 nd case 22 is sandwiched between the 1 st case 21 and the 3 rd case 23 and fixed to the 3 rd case 23. The 2 nd housing 22 is provided with: a coupling piece 22B fixed to the 3 rd case 23 by a screw, and an insertion piece 22C inserted into and coupled to the 3 rd case 23 from the top. The coupling piece 22B protrudes in the horizontal direction and is fixed by a fastening screw 15 screwed into a coupling boss 23B of the 3 rd housing 23. The insertion piece 22C protrudes downward and is inserted into and connected to a fitting hole 23C provided in the 3 rd housing 23.
(case 3 23)
The 3 rd housing 23 includes: an insertion peripheral wall 23A which is inserted in close contact with the inside of the entire periphery of the storage case 10. The insertion peripheral wall 23A extends up to the inside of the outer peripheral wall 21A of the 1 st case 21, and a discharge opening 72 is provided between the insertion peripheral wall 23A and the outer peripheral wall 21A. In order to provide the discharge opening 72 along the upper end edge of the storage case 10, a gap is provided between the lower end edge of the outer peripheral wall 21A of the 1 st case 21 and the upper end edge of the storage case 10, and a gap is also provided between the outer peripheral wall 21A and the upper portion of the insertion peripheral wall 23A of the 3 rd case 23. The 3 rd housing 23 is provided with: a bottom plate 23D bent from the upper edge of the insertion peripheral wall 23A and extending to the inside. A gap is provided between the outer peripheral wall 21A of the 1 st case 21 and a bent portion inserted into a critical portion between the upper portion of the peripheral wall 23A and the bottom plate 23D, and this gap is defined as a discharge opening 72. The bottom plate 23D is provided with an inner peripheral wall 23E along the inner edge. The inner peripheral wall 23E is disposed inside the inflow opening 71, and the space between the inner peripheral wall 23E and the outer peripheral wall 21A serves as a guide groove 73, and the bottom plate 23D serves as a groove bottom of the guide groove 73. The inner peripheral wall 23E is disposed inside the inflow opening 71 so that the immersion water flowing downward after entering the inflow opening 71 flows into the guide groove 73 without leaking to the outside. The 3 rd housing 23 is configured such that: a guide groove 73 that guides the immersion water flowing in from the inflow opening 71 is provided outside the inner peripheral wall 23E, and guides the immersion water flowing in from the inflow opening 71 to the discharge opening 72. The guide groove 73 is disposed below the entire inflow opening 71, and discharges the immersion water from the inflow opening 71 to the outside through the discharge opening 72 without leaking. The discharge opening 72 is formed by: the clearance is larger than the inflow opening 71 and the water path resistance is smaller than the inflow opening 71, so that the immersion water is smoothly discharged without being retained inside.
The above top lid portion 20 is configured such that: the 2 nd case 22 is fixed to the 3 rd case 23, and the 3 rd case 23 is assembled by being fixed to the 1 st case 21 with screws. As shown in fig. 10, the fastening screw 16 for fixing the 3 rd case 23 to the 1 st case 21 penetrates the 3 rd case 23 from the lower surface side of the 3 rd case 23 and is screwed into the coupling boss 21B provided on the 1 st case 21. As shown in fig. 3 and 4, in a state where the battery assembly 40 is fixed to the lower surface of the top lid portion 20, the battery assembly 40 is inserted into the housing case 10, and the top lid portion 20 is disposed at a fixed position of the housing case 10.
(Battery assembly 40)
As shown in fig. 5, the battery assembly 40 includes a plurality of secondary battery cells 1. In the battery assembly 40, the plurality of secondary battery cells 1 are arranged at fixed positions by the battery holder 44, and the battery end faces are connected by the lead plates 45, so that the outer shape is a quadrangular prism shape. As shown in fig. 11, the periphery of the battery assembly 40 is fastened by the support frame 50, and the battery assembly 40 is connected to the top lid member 20 and the bottom lid member 30 by the fastening screws 46 penetrating the support frame 50.
As shown in fig. 11, the battery assembly 40 is fixed to the top lid portion 20 by a fastening screw 46 that is inserted into the support frame 50 in an upward direction. As shown in fig. 3 and 4, the battery assembly 40 fixed to the top lid portion 20 is inserted into the housing case 10 in a state where the heat sink 2 is brought into close contact with the side surface 43 and the amide fiber sheet 3 is laminated on the surface of the heat sink 2. The housing case 10 after the battery assembly 40 is inserted is closed by being connected to the lower opening 12 by the bottom lid portion 30. As shown in fig. 4 and 11, the fastening screw 46 that has passed through the support frame 50 downward is inserted into the bottom cover 30, and the bottom cover 30 is fixed to the lower surface of the battery assembly 4 by screwing the nut 49 into the fastening screw 46 that has passed through the bottom cover 30. As described above, the top cover 20 is fixed to the upper opening 11 of the storage case 10, and the bottom cover 30 is fixed to the lower opening 12 of the storage case 10.
Further, the power supply device 100 shown in fig. 2 is provided with: and an output terminal 33 exposed on the bottom surface of the housing 9. The following features are provided here: the case 9 provided with the output terminal 33 can prevent water from flowing in from the output terminal 33. Since the output terminal 33 is provided by inserting a metal rod from the inside of the case to the outside, a waterproof structure is provided between the output terminal 33 and the case by a filler or the like. The waterproof structure achieved by the filler cannot prevent the intrusion of water due to the aging of the filler. In particular, it is very difficult to completely eliminate the deterioration of the filler and realize a waterproof structure that is reliable for a long period of time. The power supply device 100 of fig. 2 has the following features: since the output terminal 33 is exposed to the bottom surface, the input of water from the output terminal 33 can be reliably prevented in the use state.
The housing 9 shown in the bottom view of fig. 2 and the cross-sectional view of fig. 5 is provided with a bottom drain port 35 at the bottom. In the power supply device 100, even if the immersion water cannot be discharged from the discharge opening 72, the immersion water can be discharged from the bottom drain port 35, and the immersion water is prevented from staying inside. Further, the bottom drain port 35 of the bottom surface is opened downward, so that water does not enter there.
Industrial applicability of the invention
The power supply device of the present invention can be conveniently used for outdoor use.
Description of the reference numerals
100 … power supply device 1 … secondary battery cell
2 … fin 3 … amide fiber sheet
9 … outer shell 10 … storage case
11 … Upper opening 12 … lower opening
15 … fastening screw 16 … fastening screw
20 … Top cover portion 21 … case 1
21A … peripheral wall 21B … connecting boss
22 … No. 2 case 22A … bend
22B … and connecting piece 22C … insert piece
22a … toward the outer periphery 23 … case 3
23A … is inserted into the peripheral wall 23B … to connect the boss
23C … interfitting hole 23D … bottom plate
23E … inner peripheral wall 24 … handle frame
25 … frame opening 28 … handle
28A … handle portion 28B … arch-shaped connecting portion
28C … erect a connection part 30 … bottom cover part
33 … output terminal 35 … bottom drain
40 … Battery pack 43 … side
44 … battery seat 45 … lead plate
46 … fastening screw 49 … nut
50 … support frame 71 … inflow opening
72 … discharge opening 73 … guide groove
Claims (8)
1. A power supply device, a battery cell is arranged in a shell,
the housing is provided with:
a storage case having an opening at the upper part thereof and having the battery cells built therein; and
a lid top portion for closing an upper opening portion of the storage case,
the top cover portion is formed:
an inflow opening for allowing external water to flow into the housing; and
a discharge opening for discharging the immersion water flowing in from the inflow opening to the outside, and having a water path resistance smaller than that of the inflow opening,
further, the top lid portion includes: a guide groove for guiding the immersion water flowing in from the inflow opening to the discharge opening,
the top cover portion is constructed from a plurality of components,
the inflow opening is provided with: the critical position of the components constituting the cover dome section,
the discharge opening is provided with: a critical portion between the cover dome section and the receiving case.
2. The power supply device according to claim 1,
an output terminal is provided at the bottom of the housing.
3. The power supply device according to claim 1,
the top cover part is provided with:
a 3 rd housing disposed above the accommodation housing;
a 2 nd case disposed on the 3 rd case; and
a 1 st housing disposed above the 2 nd housing,
the inflow opening is provided between the 1 st case and the 2 nd case.
4. The power supply device according to claim 3,
the discharge opening is provided with: the 1 st shell and the containing shell.
5. The power supply device according to claim 4,
the 1 st housing includes: an outer peripheral wall disposed above an upper opening edge of the housing case,
a discharge opening is provided between the outer peripheral wall and the storage case.
6. The power supply device according to any one of claims 1 to 5,
the inflow opening and the discharge opening are: and a gap extending along the upper opening of the housing case.
7. The power supply device according to claim 5,
the 3 rd housing includes:
an insertion peripheral wall which is inserted from an upper opening of the housing case in close contact with the inside;
a bottom plate connected to an upper edge of the insertion peripheral wall; and
an inner peripheral wall provided along an inner side of the bottom plate,
the insertion peripheral wall extends up to the inside of the outer peripheral wall of the 1 st housing,
a gap is provided between the insertion peripheral wall and the outer peripheral wall as a discharge opening,
the 3 rd housing is provided with, on the outside of the inner peripheral wall: the bottom plate portion serves as the guide groove of the groove bottom.
8. The power supply device according to any one of claims 1 to 5,
and a bottom water outlet is arranged at the bottom of the shell.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017190041 | 2017-09-29 | ||
| JP2017-190041 | 2017-09-29 | ||
| PCT/JP2018/032647 WO2019065109A1 (en) | 2017-09-29 | 2018-09-03 | Power supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111164785A CN111164785A (en) | 2020-05-15 |
| CN111164785B true CN111164785B (en) | 2022-12-06 |
Family
ID=65900963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880062896.2A Active CN111164785B (en) | 2017-09-29 | 2018-09-03 | Power supply device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7233371B2 (en) |
| CN (1) | CN111164785B (en) |
| PH (1) | PH12020550138A1 (en) |
| WO (1) | WO2019065109A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7056795B1 (en) * | 2021-12-03 | 2022-04-19 | Tdk株式会社 | Battery case and storage battery system |
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| JPH1040894A (en) * | 1996-07-19 | 1998-02-13 | Daito Kasei Kk | Battery |
| JP2002127941A (en) * | 2000-10-26 | 2002-05-09 | Asmo Co Ltd | Waterproofing structure of engine room |
| CN201112211Y (en) * | 2007-09-14 | 2008-09-10 | 李伟高 | Flow guiding type water-proof keyboard |
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| CN204760785U (en) * | 2015-06-30 | 2015-11-11 | 南京博路电气有限公司 | Outdoor looped netowrk cabinet |
| CN205050896U (en) * | 2015-09-28 | 2016-02-24 | 浙江天能能源科技有限公司 | Battery box of sealed design |
| JP2017092049A (en) * | 2017-02-23 | 2017-05-25 | 株式会社マキタ | Battery pack |
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| JP2003308134A (en) * | 2002-04-18 | 2003-10-31 | Casio Comput Co Ltd | Portable information equipment |
| JP4768543B2 (en) | 2006-08-09 | 2011-09-07 | 株式会社東芝 | Electronics |
| US20140127551A1 (en) * | 2012-06-20 | 2014-05-08 | Robert Bosch Gmbh | Rechargeable battery and module of the same |
| JP2015053164A (en) * | 2013-09-06 | 2015-03-19 | セイコーエプソン株式会社 | Portable electronic apparatus |
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2018
- 2018-09-03 JP JP2019544480A patent/JP7233371B2/en active Active
- 2018-09-03 CN CN201880062896.2A patent/CN111164785B/en active Active
- 2018-09-03 WO PCT/JP2018/032647 patent/WO2019065109A1/en active Application Filing
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2020
- 2020-03-25 PH PH12020550138A patent/PH12020550138A1/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0680236U (en) * | 1993-04-22 | 1994-11-08 | 市光工業株式会社 | Illuminated switch device |
| JPH1040894A (en) * | 1996-07-19 | 1998-02-13 | Daito Kasei Kk | Battery |
| JP2002127941A (en) * | 2000-10-26 | 2002-05-09 | Asmo Co Ltd | Waterproofing structure of engine room |
| CN201112211Y (en) * | 2007-09-14 | 2008-09-10 | 李伟高 | Flow guiding type water-proof keyboard |
| CN101630755A (en) * | 2009-05-12 | 2010-01-20 | 深圳市山木电池科技有限公司 | Novel electric vehicle battery |
| CN201820569U (en) * | 2010-09-15 | 2011-05-04 | 南通茂业电子科技有限公司 | Magnetizing/demagnetizing controller of electro-permanent magnetic chuck |
| CN103996553A (en) * | 2013-02-15 | 2014-08-20 | 欧姆龙汽车电子株式会社 | Switch device |
| CN104218193A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN204760785U (en) * | 2015-06-30 | 2015-11-11 | 南京博路电气有限公司 | Outdoor looped netowrk cabinet |
| CN205050896U (en) * | 2015-09-28 | 2016-02-24 | 浙江天能能源科技有限公司 | Battery box of sealed design |
| JP2017092049A (en) * | 2017-02-23 | 2017-05-25 | 株式会社マキタ | Battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| PH12020550138A1 (en) | 2020-12-07 |
| JP7233371B2 (en) | 2023-03-06 |
| JPWO2019065109A1 (en) | 2020-10-22 |
| CN111164785A (en) | 2020-05-15 |
| WO2019065109A1 (en) | 2019-04-04 |
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