CN112271348B

CN112271348B - Hydrogen-nickel battery pack

Info

Publication number: CN112271348B
Application number: CN202011555657.6A
Authority: CN
Inventors: 崔恒亮
Original assignee: Shenzhen Vimsun Technology Co ltd
Current assignee: Shenzhen Chenyang Technology Co., Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-03
Anticipated expiration: 2040-12-25
Also published as: CN112271348A

Abstract

The invention discloses a hydrogen-nickel battery pack, which comprises a bottom plate, wherein the upper surface of the bottom plate is provided with a lower conducting strip, the bottom plate is provided with a battery heat management mechanism and a battery detection mechanism, a plurality of battery units are inserted in the battery heat management mechanism, the upper surface of the battery heat management mechanism is provided with a cover plate assembly, the upper surface of the cover plate assembly is provided with a abdication hole matched with the battery detection mechanism, and the battery heat management mechanism can heat air in a shell and a connecting pipe by using an electric heating element when the ambient temperature is lower and realize the integral rise of the temperature of the battery units by internal circulation control, so that the battery units have better charge and discharge performance, better heat preservation performance and high-efficiency heat dissipation by matching with a heat dissipation pipe when the temperature of the battery is overhigh, the performance degradation of the battery material at high temperature is avoided, and the cycle life of the battery unit is prolonged.

Description

Hydrogen-nickel battery pack

Technical Field

The invention relates to the field of battery equipment, in particular to a hydrogen-nickel battery pack.

Background

Since cadmium in a large amount of used nickel-cadmium batteries (Ni-Cd) is toxic, the waste batteries are complicated to process, and the environment is polluted, it is gradually replaced by a nickel-hydrogen rechargeable battery (Ni-MH) made of a hydrogen storage alloy. In terms of battery power, the same size of nickel-hydrogen rechargeable battery is about 1.5-2 times higher than that of a nickel-cadmium battery, and has no cadmium pollution, and is widely used for various small portable electronic devices such as mobile communication devices, notebook computers and the like. Larger capacity nickel-metal hydride batteries have begun to be used in gasoline/electric hybrid vehicles.

The existing method has the following problems:

the discharge efficiency of the nickel-hydrogen battery is obviously reduced at low temperature, and at-20 ℃, the alkali liquor reaches the solidifying point, the charging speed of the battery is greatly reduced, but when the temperature is increased to more than 45 ℃, the performance of the rechargeable battery material is degraded at high temperature, the cycle life of the battery is greatly shortened, and the battery needs to be insulated at low temperature and also needs to be radiated;

the hydrogen-nickel battery package is after single hydrogen-nickel battery breaks down and damages appearing, need disassemble whole battery package, then detect the battery to using the voltmeter again, then replace the battery that damages or trouble again and reassemble, lead to the cost of maintenance of hydrogen-nickel battery package higher, and the maintenance is comparatively troublesome.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a hydrogen-nickel battery pack, which overcomes the defects of the prior art, has simple structural design and effectively solves the problems mentioned in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

a hydrogen-nickel battery pack comprises a bottom plate, wherein a lower conducting strip is arranged on the upper surface of the bottom plate, a battery heat management mechanism and a battery detection mechanism are arranged on the bottom plate, a plurality of battery units are inserted into the battery heat management mechanism, a cover plate assembly is arranged on the upper surface of the battery heat management mechanism, and a yielding hole matched with the battery detection mechanism is formed in the upper surface of the cover plate assembly;

the battery heat management mechanism comprises a clapboard and a shell fixedly connected with the upper surface of the bottom plate, a connecting pipe is arranged in the clapboard,the middle section of the connecting pipe is communicated with a plurality of flat pipes, the flat pipes wrap the battery unit, one side of the shell is provided with a shell, an electric heating element is arranged in the shell, a temperature sensor is arranged in the shell and electrically connected with a controller, an axial fan is fixedly connected in the shell, one side of the shell is communicated with the connecting pipe, one end of the shell, far away from the connecting pipe, is communicated with a control pipe, an electric three-way valve is arranged in the control pipe, the controller, the electric heating element and the electric three-way valve are electrically connected, the electric three-way valve is communicated with a radiating pipe, the electric three-way valve is communicated with the connecting pipe, the radiating pipe is fixedly connected with the side wall of the shell, and a one-way valve is embedded in the radiating pipe;

the battery detection mechanism comprises a voltmeter assembly and a plurality of heat insulation sleeves, the heat insulation sleeves wrap a battery unit, an upper conducting strip is inserted into the side wall of each heat insulation sleeve, a through hole is formed in the upper surface of each upper conducting strip, the through hole and the abdicating hole are coaxially arranged, the lower surface, close to the through hole, of each upper conducting strip is fixedly connected with two arc-shaped conducting strips, a first blind hole which is vertically arranged is formed in each heat insulation sleeve, a conical hole is formed in the lower end of each first blind hole, a second blind hole is formed in the lower end of each conical hole, a guide block is arranged at the lower end of each second blind hole, a square hole is formed in the side wall of each second blind hole, a conducting strip is inserted into each first blind hole, two limiting blocks are rotatably connected at the upper ends of the conducting strips, clamping grooves are formed in the side walls, close to each limiting block, and a conical block is fixedly connected to one end, far away from the limiting blocks, of each conducting strip, and the lower surface of the conical block is provided with an insulating layer.

Preferably, the voltmeter component comprises a voltmeter main body, a vertical rod is arranged at the lower end of the voltmeter main body, a first detection interface is fixedly connected to the side wall of the vertical rod, a second detection interface is fixedly connected to the lower end of the vertical rod, the first detection interface and the second detection interface are both electrically connected with the voltmeter main body, and the second detection interface is in the shape of a truncated cone.

Preferably, the cover plate assembly comprises a cover body, a plurality of round holes are formed in the cover body, internal threads are formed in the inner walls of the round holes, round holes are connected with round covers in an internal thread mode, copper sheets are arranged on the lower surfaces of the round covers and abut against the battery units, connecting sheets are arranged in the cover body, and the connecting sheets abut against the copper sheets.

Preferably, the upper end of the round cover is provided with a cross-shaped groove or a straight-shaped groove.

Preferably, the side wall of the housing is fixedly connected with a plurality of radiating fins, and the radiating fins are abutted to the radiating pipe.

Preferably, the receding hole is internally provided with a waterproof plug, the upper end of the waterproof race is fixedly connected with a rubber rod, and the upper end of the rubber rod is fixedly connected with a ball.

(III) advantageous effects

The embodiment of the invention provides a hydrogen-nickel battery pack, which has the following beneficial effects:

1. this kind of hydrogen-nickel battery package, through setting up battery thermal management mechanism, battery thermal management mechanism can utilize electric heating element to the air heating in casing and the connecting tube when ambient temperature is lower, and realize the whole rising of temperature of inner loop control battery unit, make battery unit all have better charge-discharge performance, and have better thermal insulation performance, again can be when battery temperature is too high, the cooperation cooling tube carries out high-efficient heat dissipation to battery unit, avoid the performance degradation of battery material under the high temperature, prolong battery unit's cycle life.

2. This kind of hydrogen-nickel battery package through setting up battery detection mechanism, can utilize voltmeter subassembly to carry out voltage detection to single battery unit, need not to disassemble earlier the battery package and detect the battery again, fixes a position the battery of trouble or damage fast, and convenience of customers maintains the battery.

3. This kind of hydrogen-nickel battery package through setting up the apron subassembly, when using battery detection mechanism to detect trouble or damage battery unit, can take out trouble or the battery unit who damages under the condition of not disassembling the battery package, reduces cost of maintenance, shortens the maintenance flow.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of a battery thermal management mechanism according to the present invention;

FIG. 5 is a schematic structural diagram of a battery detection mechanism according to the present invention;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 5;

FIG. 7 is a schematic view of a cover plate assembly according to the present invention;

in the figure: 1. a base plate; 2. a lower conductive sheet; 3. a battery thermal management mechanism; 4. a battery detection mechanism; 5. a battery cell; 6. a cover plate assembly; 7. a hole of abdication; 31. a partition plate; 32. a housing; 33. a connecting pipe; 34. flat tubes; 35. a housing; 36. an electrical heating element; 37. an axial flow fan; 38. a control tube; 39. an electric three-way valve; 310. a radiating pipe; 311. a temperature sensor; 312. a one-way valve; 41. a voltmeter component; 42. a heat insulating sleeve; 43. an upper conductive sheet; 44. a through hole; 45. an arc-shaped conducting plate; 46. a first blind hole; 47. a tapered hole; 48. a second blind hole; 49. a guide block; 410. a square hole; 411. a conductive strip; 412. a limiting block; 413. A card slot; 414. a conical block; 4101. a voltmeter body; 4102. a vertical rod; 4103. a first detection interface; 4104. a second detection interface; 61. a cover body; 62. a dome; 63. a copper sheet; 64. connecting sheets; 8. a waterproof plug; 9. a ball; 10. and a heat sink.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the invention is described hereinThe preferred embodiments are described for the purpose of illustration and explanation only and are not intended to be limiting:

referring to fig. 1 to 7, in the embodiment of the invention, a nickel-hydrogen battery pack includes a bottom plate 1, a lower conductive plate 2 is disposed on an upper surface of the bottom plate 1, a battery heat management mechanism 3 and a battery detection mechanism 4 are disposed on the bottom plate 1, a plurality of battery units 5 are inserted into the battery heat management mechanism 3, a cover plate assembly 6 is disposed on an upper surface of the battery heat management mechanism 3, and a yielding hole 7 matched with the battery detection mechanism 4 is formed in an upper surface of the cover plate assembly 6.

The battery thermal management mechanism 3 comprises a partition plate 31 and a shell 32 fixedly connected with the upper surface of the base plate 1, a connecting pipe 33 is arranged in the partition plate 31, the middle section of the connecting pipe 33 is communicated with a plurality of flat pipes 34, the flat pipes 34 are wrapped on the battery unit 5, one side of the shell 32 is provided with a shell 35, an electric heating element 36 is arranged in the shell 35, a temperature sensor 311 is arranged in the shell 35, the temperature sensor 311 is electrically connected with a controller, the temperature sensor 311 is arranged close to a control pipe 38, the controller comprises a processor for processing signals of the temperature sensor 311 and a relay for controlling the electric heating element 36 and an electric three-way valve 39, an axial flow fan 37 is fixedly connected in the shell 35, one side of the shell 35 is communicated with the connecting pipe 33, and one end of the shell 35 far away from the connecting pipe 33 is communicated with the control pipe 38, be provided with electronic three way valve 39 in the control tube 38, controller, electric heating element 36 and electronic three way valve 39 electric connection set up, electronic three way valve 39 intercommunication has the cooling tube 310, and electronic three way valve 39 and connecting pipe 33 intercommunication set up, the lateral wall fixed connection setting of cooling tube 310 and shell 32, the embedded check valve 312 that is equipped with of cooling tube 310.

Battery detection mechanism 4 includes voltmeter subassembly 41 and a plurality of radiation shield 42, radiation shield 42 parcel battery unit 5 sets up, radiation shield 42's lateral wall is inserted and is equipped with conducting strip 43, go up conducting strip 43's upper surface and seted up through-hole 44, and through-hole 44 with let the coaxial setting in hole 7, go up electrically conductiveTwo arc conducting strips 45 of lower fixed connection that piece 43 is close to through-hole 44, set up the first blind hole 46 of vertical setting in the radiation shield 42, and the lower extreme of first blind hole 46 has seted up bell mouth 47, second blind hole 48 has been seted up to the lower extreme of bell mouth 47, the lower extreme of second blind hole 48 is provided with guide block 49, square hole 410 has been seted up to the lateral wall of second blind hole 48, first blind hole 46 interpolation is equipped with conducting strip 411, and the upper end of conducting strip 411 rotates and is connected with two stopper 412, two the draw-in groove 413 has all been seted up to the lateral wall that stopper 412 is close to each other, the one end fixedly connected with conical block 414 of stopper 412 is kept away from to conducting strip 411, and the lower surface of conical block 414 is provided with the insulating layer.

As a further aspect of the present invention, the voltmeter assembly 41 includes a voltmeter body 4101, a vertical rod 4102 is disposed at a lower end of the voltmeter body 4101, a first detection interface 4103 is fixedly connected to a side wall of the vertical rod 4102, a second detection interface 4104 is fixedly connected to a lower end of the vertical rod 4102, the first detection interface 4103 and the second detection interface 4104 are both electrically connected to the voltmeter body 4101, and the second detection interface 4104 is in a truncated cone shape.

As a further scheme of the present invention, the cover plate assembly 6 includes a cover body 61, a plurality of circular holes are formed in the cover body 61, internal threads are formed on inner walls of the circular holes, the circular holes are connected with a circular cover 62 in an internal thread manner, a copper sheet 63 is arranged on a lower surface of the circular cover 62, the copper sheet 63 is arranged to abut against the battery units 5, a connecting sheet 64 is arranged in the cover body 61, the connecting sheet 64 abuts against the copper sheet 63, and the connecting sheet 64 is arranged to cooperate with the copper sheet 63 to connect the plurality of battery units 5, so as to form the battery pack.

As a further proposal of the invention, the upper end of the round cover 62 is provided with a cross-shaped groove or a straight-shaped groove.

In a further aspect of the present invention, a plurality of heat dissipation fins 10 are fixedly connected to a sidewall of the housing 32, and the heat dissipation fins 10 are disposed to abut against the heat dissipation pipe 310.

As a further scheme of the invention, a waterproof plug 8 is arranged in the receding hole 7, the upper end of the waterproof plug 8 is fixedly connected with a rubber rod, and the upper end of the rubber rod is fixedly connected with a round ball 9.

The working principle of the invention is as follows: when the nickel-hydrogen battery pack is used, the battery unit 5 is discharged, the battery thermal management mechanism 3 is synchronously started, the axial flow fan 37 operates to drive the air in the shell 35 to flow along the connecting pipe 33, the flat pipe 34, the electric three-way valve 39 and the radiating pipe 310 in sequence and enter the shell 35 again, meanwhile, the temperature sensor 311 senses the air temperature, when the temperature is lower than 15 ℃, the low temperature is mainly caused by the external environment temperature, the temperature sensor 311 controls the electric three-way valve 39 and the electric heating element 36 to operate through the controller, after the electric three-way valve 39 operates, the control pipe 38 is communicated with one end of the connecting pipe 33 far away from the shell 35, at the moment, the air is heated in the shell 35, flows through the flat pipe 34 along the connecting pipe 33, then flows into the control pipe 38 through the connecting pipe 33 and flows back into the shell 35 to form internal circulation, and because of the one-way valve 312, the heat exchange between the heated air and the air in the heat dissipation pipe 310 can be avoided, and the heat loss can be reduced, in this case, the air does not exchange heat with the external environment, the temperature of the battery unit 5 can be rapidly increased, and after the temperature rises, the temperature sensor 311 senses that the temperature rises to an appropriate temperature, and controls the electric heating element 36 to stop operating, at this time, because the battery unit 5 can generate heat during the charging and discharging process, so as to offset the heat loss to a certain extent, the temperature of the nickel-hydrogen battery pack is maintained between 15 and 45 ℃ when the external temperature is lower (the temperature range is the optimal operation temperature range of the nickel-hydrogen battery, and is smaller than the operation temperature range of the nickel-hydrogen battery pack), so that the battery unit 5 can be charged and discharged at the appropriate temperature, and along with the operation of the nickel-hydrogen battery pack, when the temperature of the nickel-hydrogen battery pack is higher than 45 ℃, the temperature sensor 311 controls the electric three-way valve 39 to operate through the controller, at this time, one end of the connecting pipe 33, which is far away from the shell 35, is communicated with the radiating pipe 310, and air does not flow back into the shell along the control pipe 38 after passing through the electric three-way valve 39The heat dissipation pipe 310 flows along the heat dissipation pipe 35, and the heat dissipation pipe 310 and the heat dissipation fins 10 are matched for cooling and then the heat flows back into the shell 35, so that air circulation heat dissipation is performed, the temperature of the hydrogen-nickel battery pack during operation can be more effectively controlled by the mode, the purposes of temperature rise and heat preservation in the external environment and sufficient heat dissipation in the high temperature of the battery pack are achieved;

when the battery has an undervoltage fault, often because a part of the battery unit 5 is damaged or has a fault, at this time, a user can pinch the ball 9 to pull out the waterproof plug 8, then insert the vertical rod 4102 into the nickel-hydrogen battery pack along the abdicating hole 7, then insert the second detection interface 4104 into the card slot 413 and drive the conductive strip 411 to move downwards, at this time, the two limit blocks 412 of the tapered hole 47 clamp the second detection interface 4104, while the conductive strip 411 moves downwards, guided by the guide block 49, so that the tapered block 414 is inserted between the battery unit 5 and the lower conductive strip 2, at the same time, the first detection interface 4103 abuts against the arc conductive strip 45, so that the battery unit 5 and the voltmeter main body 4101 form a loop, the voltmeter 410main body 1 detects the voltage of the battery unit 5, if the battery unit 5 has no fault, the voltmeter main body 4101 is pulled upwards, at this time, because the inner diameter of the second blind hole 48 is smaller, the limiting block 412 cannot rotate, the second detection interface 4104 can be matched with the limiting block 412 and the clamping groove 413 to drive the conductive strip 411 to move upwards until the limiting block 412 moves to a position close to the first blind hole 46, so that the conical block 414 is prevented from interfering with normal operation of the battery unit 5, and then the waterproof plug 8 is plugged into the abdicating hole 7, if the voltage of the battery unit 5 is abnormal, a user can rotate the round cover 62, take the round cover 62 down from the cover body 61, and then take out the battery unit 5 and put in a new battery unit 5.

Finally, it should be noted that: in the description of the present invention, it is to be noted that the terms "vertical", "upper", "lower", and the like,The references to "horizontal" and the like are based on the orientation or positional relationship shown in the drawings and are for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A hydrogen-nickel battery pack comprises a bottom plate (1), and is characterized in that a lower conducting strip (2) is arranged on the upper surface of the bottom plate (1), a battery heat management mechanism (3) and a battery detection mechanism (4) are arranged on the bottom plate (1), a plurality of battery units (5) are inserted into the battery heat management mechanism (3), a cover plate assembly (6) is arranged on the upper surface of the battery heat management mechanism (3), and a abdicating hole (7) matched with the battery detection mechanism (4) is formed in the upper surface of the cover plate assembly (6);

the battery heat management mechanism (3) comprises a partition plate (31) and a shell (32) fixedly connected with the upper surface of the bottom plate (1), a connecting pipe (33) is arranged in the partition plate (31), the middle section of the connecting pipe (33) is communicated with a plurality of flat pipes (34), the flat pipes (34) wrap a battery unit (5), a shell (35) is arranged on one side of the shell (32), an electric heating element (36) is arranged in the shell (35), a temperature sensor (311) is arranged in the shell (35), the temperature sensor (311) is electrically connected with a controller, an axial flow fan (37) is fixedly connected in the shell (35), one side of the shell (35) is communicated with the connecting pipe (33), a control pipe (38) is communicated with one end, far away from the connecting pipe (33), of the shell (35), and an electric three-way valve (39) is arranged in the control pipe (38), the controller, the electric heating element (36) and the electric three-way valve (39) are electrically connected, the electric three-way valve (39) is communicated with the radiating pipe (310), the electric three-way valve (39) is communicated with the connecting pipe (33), the radiating pipe (310) is fixedly connected with the side wall of the shell (32), and the one-way valve (312) is embedded in the radiating pipe (310);

the battery detection mechanism (4) comprises a voltmeter component (41) and a plurality of heat insulation sleeves (42), the heat insulation sleeves (42) wrap the battery units (5) and are arranged, the side wall of the heat insulation sleeves (42) is inserted with an upper conductive sheet (43), the upper surface of the upper conductive sheet (43) is provided with a through hole (44), the through hole (44) and the abdicating hole (7) are coaxially arranged, the lower surface of the upper conductive sheet (43) close to the through hole (44) is fixedly connected with two arc-shaped conductive sheets (45), a vertically arranged first blind hole (46) is formed in the heat insulation sleeve (42), the lower end of the first blind hole (46) is provided with a conical hole (47), the lower end of the conical hole (47) is provided with a second blind hole (48), the lower end of the second blind hole (48) is provided with a guide block (49), the side wall of the second blind hole (48) is provided with a square hole (410), the conducting strip (411) is inserted into the first blind hole (46), the upper end of the conducting strip (411) is rotatably connected with two limiting blocks (412), the limiting blocks (412) are close to each other, clamping grooves (413) are formed in the side walls, one end of the conducting strip (411) is far away from the limiting blocks (412) and is fixedly connected with conical blocks (414), and insulating layers are arranged on the lower surfaces of the conical blocks (414).

2. The nickel-hydrogen battery pack according to claim 1, wherein the voltmeter assembly (41) comprises a voltmeter body (4101), a vertical rod (4102) is arranged at the lower end of the voltmeter body (4101), a first detection interface (4103) is fixedly connected to the side wall of the vertical rod (4102), a second detection interface (4104) is fixedly connected to the lower end of the vertical rod (4102), the first detection interface (4103) and the second detection interface (4104) are both electrically connected with the voltmeter body (4101), and the second detection interface (4104) is in the shape of a truncated cone.

3. The H-Ni battery pack as claimed in claim 1, wherein the cover plate assembly (6) comprises a cover body (61), the cover body (61) is provided with a plurality of round holes, the inner walls of the round holes are provided with internal threads, the round holes are connected with round covers (62) in the internal threads, the lower surfaces of the round covers (62) are provided with copper sheets (63), the copper sheets (63) are abutted against the battery units (5), connecting sheets (64) are arranged in the cover body (61), and the connecting sheets (64) are abutted against the copper sheets (63).

4. The H-Ni battery pack according to claim 3, wherein the round cover (62) is provided with a cross-shaped groove or a straight-shaped groove at the upper end.

5. The ni-h battery pack according to claim 1, characterized in that a plurality of heat dissipation fins (10) are fixedly connected to the side wall of the housing (32), and the heat dissipation fins (10) are disposed against the heat dissipation pipe (310).

6. The H-Ni battery pack according to claim 1, wherein a waterproof plug (8) is arranged in the receding hole (7), a rubber rod is fixedly connected to the upper end of the waterproof plug (8), and a round ball (9) is fixedly connected to the upper end of the rubber rod.