CN111030252B - Energy-saving charging device for rechargeable battery and charging method thereof - Google Patents
Energy-saving charging device for rechargeable battery and charging method thereof Download PDFInfo
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- CN111030252B CN111030252B CN201911401801.8A CN201911401801A CN111030252B CN 111030252 B CN111030252 B CN 111030252B CN 201911401801 A CN201911401801 A CN 201911401801A CN 111030252 B CN111030252 B CN 111030252B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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Abstract
An energy-saving charging device for a rechargeable battery, comprising: the charging circuit board is arranged in the base, the plug for connecting commercial power is hinged to the bottom of the base, and the charging circuit board is electrically connected with the positive contact terminal, the negative contact terminal and the plug respectively and converts the commercial power into direct current to charge the battery; the charging device further comprises a battery frame and a power-off energy-saving unit, the battery frame is arranged in the battery jar, the power-off energy-saving unit is arranged in the base and located below the battery jar, and the charging circuit board is electrically connected with the power-off energy-saving unit. The battery can be disconnected from the charging loop of the charger after the battery is fully charged, and when power failure occurs, the charger can disconnect the charging loop temporarily and reset the battery to a charging position for charging when power is recovered.
Description
Technical Field
The invention relates to the technical field of battery charging, in particular to an energy-saving charging device for a rechargeable battery and a charging method thereof.
Background
In daily life, if a battery is used for supplying power, the rechargeable battery is widely used for environmental protection.
Currently, a general charger provides a receiving slot for placing a battery, and has a terminal contacting with a power-on end of the battery for charging the battery, but the conventional charger has the following problems: (1) when the charger is fully charged, the charger is always electrically connected with household 220V high-voltage alternating current, and short circuit in the charger can cause fire due to environmental factors, even a fire is caused; (2) under the condition of incomplete power failure after the battery is fully charged, the battery can be overshot and damaged, so that the service life of the battery is influenced or the battery is exploded due to fire; (3) when the battery is full and the charger is not taken down from the socket in time, part of components still work continuously, for example, an indicator lamp keeps on long, and unnecessary electric quantity is wasted; (4) when power failure occurs in the charging process, the battery can discharge through the charging loop, so that electric quantity loss is caused, energy waste is caused, and the charging time is prolonged. Although the amount of electricity wasted by the individual batteries is small for the above reasons, the waste of electric energy actually caused is not negligible because the rechargeable batteries are widely used and are large in number.
Although there is a charger using an auto-power-off module in the prior art, some auto-power-off modules are not very stable, once a problem occurs, the charger will not automatically power off after the electronic product is fully charged, and a user is also inconvenient to find whether the electronic product is fully charged or not in time, so that potential safety hazards and resource waste still exist. Although a scheme of popping up the battery after the battery is fully charged is provided, the problem of battery power loss on the charger when power failure occurs still cannot be solved.
Disclosure of Invention
In order to effectively solve the above problems, the present invention provides an energy-saving charging device for a rechargeable battery and a charging method thereof.
The technical scheme of the invention is as follows:
an energy-saving charging device for a rechargeable battery, comprising:
the charging circuit board is arranged in the base, the plug for connecting commercial power is hinged to the bottom of the base, and the charging circuit board is respectively electrically connected with the positive contact terminal, the negative contact terminal and the plug and converts the commercial power into direct current to charge the battery;
the charging device further comprises a battery frame and a power-off energy-saving unit, the battery frame is arranged in the battery jar, the power-off energy-saving unit is arranged in the base and located below the battery jar, and the charging circuit board is electrically connected with the power-off energy-saving unit.
Optionally, the battery stand comprises: the first connecting piece is arranged on one side close to a negative contact terminal in the battery jar, the second connecting piece is arranged on one side close to a positive contact terminal in the battery jar, and the length of the first connecting piece is greater than that of the second connecting piece;
one end of the first connecting sheet is provided with a first bent part bent downwards, one end of the second connecting sheet is provided with a second bent part bent downwards, and the end part of the first bent part is hinged with the end part of the second bent part;
the battery jar is provided with an opening through which the first bending part and the second bending part pass, and the power-off energy-saving unit is arranged in the opening;
the other end of the second connecting piece is hinged with the bottom of the positive side of the battery jar.
Optionally, two side edges of the other end of the first connecting piece are provided with protruding columns, the bottom of one side of the negative electrode of the battery jar is provided with a guide groove matched with the protruding columns, the protruding columns can freely slide in the guide groove, a first spring is arranged in the guide groove, and one end of the first spring is fixedly connected to one side, close to the negative electrode contact terminal, in the guide groove.
Optionally, a stop piece is arranged at one end, close to the negative contact terminal, of the first connecting piece, the stop piece is fixedly arranged at one side, close to the negative contact terminal, of the first connecting piece, and the stop piece is crescent or circular;
and the first connecting piece is also provided with an arc wing plate for clamping the battery.
Optionally, the power-off energy-saving unit is disposed below a hinge joint of the first connecting piece and the second connecting piece, and the power-off energy-saving unit includes: the accommodating box, the sliding block, the first elastic sheet, the second elastic sheet, the first electric attraction unit, the second electric attraction unit and the third electric attraction unit;
the accommodating box is arranged in the opening, a first accommodating cavity is formed in the middle of the accommodating box body, the top end of the first accommodating cavity is open, the first electric suction unit is arranged at the bottom of the first accommodating cavity, and the sliding block is arranged above the first electric suction unit and is connected with the first electric suction unit through a second spring;
a boss is arranged on the sliding block;
the two sides of the first accommodating cavity on the accommodating box body are respectively provided with a second accommodating cavity and a third accommodating cavity.
Optionally, a first limiting hole communicated with the first accommodating cavity is formed in the side wall of the second accommodating cavity, the first elastic sheet and the second electric suction unit are arranged in the second accommodating cavity, one end of the first elastic sheet is connected to the inner wall of the second accommodating cavity, the other end of the first elastic sheet is provided with a first clamping portion, and the first clamping portion is arranged in the first limiting hole and protrudes out of the side wall of the first accommodating cavity;
the second electric suction unit is arranged on one side, opposite to the first accommodating cavity, of the first elastic sheet.
Optionally, a second limiting hole communicated with the first accommodating cavity is formed in the side wall of the third accommodating cavity, a second elastic sheet and a third electric suction unit are arranged in the third accommodating cavity, one end of the second elastic sheet is connected to the inner wall of the third accommodating cavity, a second clamping portion is arranged at the other end of the second elastic sheet, and the second clamping portion is arranged in the second limiting hole and protrudes out of the side wall of the first accommodating cavity;
the third electric suction unit is arranged on one side, opposite to the first accommodating cavity, of the second elastic sheet.
Optionally, the positive contact terminal is disposed at the positive electrode of the battery jar, and the surface of the positive contact terminal is provided with a lapping projection, and when the battery is located at the charging position, the lower edge of the positive electrode of the battery is lapped on the lapping projection.
Optionally, when the hinge point of the first connecting sheet and the second connecting sheet is hinged to the other end of the battery seat with the second connecting sheet and one end of the first connecting sheet arranged in the guide groove is positioned on the same plane, the dead point state is achieved;
when the hinge point of the first connecting sheet and the second connecting sheet is at the lowest position, the working state is realized;
the height difference between the dead point state of the hinge point of the first connecting sheet and the second connecting sheet and the working state is H, and the height difference between the first limiting hole and the second limiting hole in the power-off energy-saving unit is H, wherein H is slightly smaller than H.
A method of charging, the method comprising the steps of:
s1: the method comprises the steps of pre-charging the battery for 0.5-1 h at a constant current at a charging rate of 0.3C according to the capacity of the battery, and preventing the battery from being charged and damaged by high current, wherein C is the capacity of the battery and has a unit of mA;
s2: the battery is rapidly charged at constant voltage by the full-charge voltage of the battery, and the charging current is detected in real time;
s3: and when the charging current is 0.05C, charging by adopting a constant current battery of 0.01-0.05C for 0.5-1 h, so that the electric quantity of the storage battery is kept full.
The invention has the advantages that the charging loop of the battery and the charger can be disconnected after the battery is fully charged, thereby preventing potential safety hazard caused by overcharging of the battery, effectively prolonging the service life of the battery, reducing the pollution of discarded batteries to the environment, simultaneously preventing electric parts of the charger from continuously working to waste electric power, and when power failure occurs, the charger can temporarily disconnect the charging loop, preventing the battery from discharging through the charging loop, and resetting the battery to a charging position for charging when the electric power is recovered, effectively avoiding energy waste, one charging device can charge at least one battery for at least one hundred times, and after large-area popularization, the number of saved electric quantity is considerable, thereby being beneficial to environmental protection.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of the present invention in a non-operating state;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of an arc-shaped wing panel according to the present invention;
FIG. 5 is a schematic diagram of the power-off energy-saving unit according to the present invention;
FIG. 6 is an enlarged view of FIG. 5 at C;
FIG. 7 is an enlarged view of FIG. 5 at B;
FIG. 8 is a schematic diagram of a critical state structure of the present invention;
fig. 9 is a schematic structural diagram of the working state of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only for explaining the present invention and are not intended to limit the present invention, and the front and rear parts described in the embodiments are only for clarifying the positional relationship and are not intended to limit the present invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention.
The first embodiment is as follows:
as shown in fig. 1, an energy-saving charging apparatus for a rechargeable battery includes:
the charging device comprises a base 1, a charging circuit board 2, a positive electrode contact terminal 3, a negative electrode contact terminal 4 and a plug 5, wherein at least one battery jar 11 providing a charging position is arranged on the base 1, the positive electrode contact terminal 3 and the negative electrode contact terminal 4 are respectively arranged at two ends of the battery jar 11 and used for charging a battery, the charging circuit board 2 is arranged in the base 1, the plug 5 used for connecting a mains supply is hinged to the bottom of the base 1, and the charging circuit board 2 is respectively electrically connected with the positive electrode contact terminal 3, the negative electrode contact terminal 4 and the plug 5 and converts the mains supply into direct current to charge the battery;
the charging device further comprises a battery frame 6 and a power-off energy-saving unit 7, wherein the battery frame 6 is arranged in a battery groove 11, the power-off energy-saving unit 7 is arranged in the base 1 and located below the battery groove 11, and the charging circuit board 2 is electrically connected with the power-off energy-saving unit 7.
As shown in fig. 2, the battery holder 6 includes: a first connecting piece 61 and a second connecting piece 62, wherein the first connecting piece 61 is arranged at the side close to the negative contact terminal 4 in the battery groove 11, the second connecting piece 62 is arranged at the side close to the positive contact terminal 3 in the battery groove 11, and the length of the first connecting piece 61 is larger than that of the second connecting piece 62. The first connecting piece 61 and the second connecting piece 62 are made of insulating materials.
As shown in fig. 2, one end of the first connecting piece 61 is provided with a first bent part 611 bent downward, one end of the second connecting piece 62 is provided with a second bent part 621 bent downward, and an end of the first bent part 611 and an end of the second bent part 621 are hinged. When the first connecting piece 61 and the second connecting piece 62 are at a uniform level, the hinge point of the first bent part 611 and the second bent part 621 is lower than the plane of the first connecting piece 61 and the second connecting piece 62.
As shown in fig. 2, the battery container 11 is provided with an opening 111 for the first bending part 611 and the second bending part 621 to pass through, and the power-off energy-saving unit 7 is disposed in the opening 111.
As shown in fig. 2, the other end of the second connecting piece 62 is hinged to the bottom of the positive electrode side of the battery container 11.
As shown in fig. 2-3, two sides of the other end of the first connecting piece 61 are provided with protruding columns 612, the bottom of the negative electrode side of the battery container 11 is provided with a guide groove 112 matching with the protruding columns 612, and the protruding columns 612 can slide freely in the guide groove 112 so that the end of the first connecting piece 61 can slide horizontally along the guide groove 112. A first spring 113 is arranged in the guide groove 112, and one end of the first spring 113 is fixedly connected to one side, close to the negative contact terminal 4, in the guide groove 112.
As shown in fig. 2-4, a stop piece 613 is disposed at one end of the first connecting piece 61 close to the negative contact terminal 4, the stop piece 613 is fixedly disposed at one side of the first connecting piece 61 close to the negative contact terminal 4, preferably, the stop piece 613 is in a crescent shape or a circular ring shape, the stop piece 613 is set in a crescent shape or a circular ring shape so as not to block the negative end of the battery, so that the negative contact terminal 4 can be in contact with the negative end of the battery, and when the battery is placed on the first connecting piece 61, the stop piece 613 blocks the battery to prevent the battery from sliding. The first connecting piece 61 is further provided with an arc-shaped wing plate 614 for clamping the battery, so that the battery can be fixed on the first connecting piece 61 to prevent the battery from falling off.
As shown in fig. 2, 3, 8 and 9, when the battery is mounted on the battery holder 6 and pressed down to the charging position, the other end of the first connecting piece 61 moves toward the negative pole, and the convex post 612 slides into the guide slot 112 to abut against the other end of the first spring 113 and compress the first spring 113.
As shown in fig. 2 and 5-7, the energy-saving power-off unit 7 is disposed below the hinge joint of the first connecting piece 61 and the second connecting piece 62, and the energy-saving power-off unit 7 includes: the accommodating box 71, the slider 72, the first elastic sheet 73, the second elastic sheet 74, the first electric attraction unit 75, the second electric attraction unit 76 and the third electric attraction unit 77.
The accommodating box 71 is arranged in the opening 111 as shown in fig. 2 and 5-7, the accommodating box 71 has a first accommodating cavity 711 in the middle, the top end of the first accommodating cavity 711 is open, the first electric suction unit 75 is arranged at the bottom of the first accommodating cavity 711, the slider 72 is arranged above the first electric suction unit 75 and connected with the first electric suction unit 75 through a second spring 722, the slider 72 is provided with a boss 721, and the hinged position of the first connecting piece 61 and the second connecting piece 62 presses on the boss 721 when the battery rack 6 is pressed downwards. The sliding block 72 is made of a magnetically attracted material, such as an iron sheet, and when the first electrical attraction unit 75 is powered on, the sliding block 72 is attracted to move toward the first electrical attraction unit 75 against the elastic force of the second spring 722.
A second accommodating chamber 712 and a third accommodating chamber 713 are respectively provided on the accommodating box 71 body at both sides of the first accommodating chamber 711.
As shown in fig. 2 and 5-7, a first limiting hole 7121 communicating with the first accommodating chamber 711 is formed in a side wall of the second accommodating chamber 712, the first elastic sheet 73 and the second electric suction unit 76 are disposed in the second accommodating chamber 712, one end of the first elastic sheet 73 is connected to an inner wall of the second accommodating chamber 712, the other end of the first elastic sheet 73 is provided with a first clamping portion 731, the first clamping portion 731 is disposed in the first limiting hole 7121 and protrudes out of the side wall of the first accommodating chamber 711, the first clamping portion 731 is configured in a wedge-shaped bent shape for clamping the slider 72, the first clamping portion 731 has a horizontal clamping surface 731a and an inclined sliding surface 731b, when the slider 72 is pressed downward, an edge of the slider 72 first contacts with the sliding surface 731b, so that the first clamping portion 731 is compressed back into the first limiting hole 7121, and after the slider 72 slides over the sliding surface 731b, the first clamping part 731 is reset; when the slider 72 moves upward, the slider 72 is blocked by the engagement surface 731a and cannot move further upward.
The second electrical suction unit 76 is disposed on the side of the first elastic sheet 73 opposite to the first accommodating cavity 711, and when the second electrical suction unit 76 is powered on, a magnetic force is generated to attract the first elastic sheet 73, and at this time, the bent portion of the first elastic sheet 73 moves toward the second electrical suction unit 76, so that the engaging surface 731a of the first engaging portion 731 no longer blocks the movement of the slider 72.
As shown in fig. 2 and 5-7, a second limiting hole 7131 communicating with the first accommodating cavity 711 is formed in a side wall of the third accommodating cavity 713, a second elastic sheet 74 and a third electric suction unit 77 are disposed in the third accommodating cavity 713, one end of the second elastic sheet 74 is connected to an inner wall of the third accommodating cavity 713, the other end of the second elastic sheet 74 is provided with a second clamping portion 741, the second clamping portion 741 is disposed in the second limiting hole 7131 and protrudes out of the side wall of the first accommodating cavity 711, the second clamping portion 741 is configured to be a wedge-shaped bent shape for clamping the slider 72, the second clamping portion 741 has a horizontal clamping surface 741a and an inclined sliding surface 741b, when the slider 72 is pressed down, an edge of the slider 72 first contacts with the sliding surface 741b, so that the second clamping portion 741 is pressed to retract into the second limiting hole 7131, and after the slider 72 slides over the sliding surface 741b, the second clamping part 741 is reset; when the slider 72 moves upward, the slider 72 is blocked by the engagement surface 741a and cannot move further upward.
The third electrical suction unit 77 is disposed on a side of the second resilient tab 74 opposite to the first accommodating cavity 711, and when the third electrical suction unit 77 is powered on, a magnetic force is generated to attract the second resilient tab 74, and at this time, the bent portion of the second resilient tab 74 moves toward the third electrical suction unit 77, so that the engaging surface 741a of the second engaging portion 741 does not block the movement of the slider 72.
As shown in fig. 5, the first position-limiting hole 7121 is higher than the second position-limiting hole 7131 by a height difference h.
The first, second and third electro-attracting units 75, 76 and 77 may employ electromagnetic coils or cores wound with coils.
As shown in fig. 1, 2, 8 and 9, the positive contact terminal 3 is disposed at the positive electrode of the battery container 11, the surface of the positive contact terminal 3 is provided with an overlapping protrusion 31, the overlapping protrusion 31 contacts with the lower edge of the positive end of the battery, and when the battery is located at the charging position, the lower edge of the positive end of the battery overlaps on the overlapping protrusion 31, so that the positive contact terminal is communicated with the positive contact terminal 3 to form a charging loop.
The charging circuit board 2 is a common PCB board of the charger, and has modules such as a microcontroller, a voltage detection module, a current detection module, a capacitor module, a time delay relay module and the like, and is used for controlling the operation of each unit.
The energy-saving charging device has the following working states:
as shown in fig. 1 and 2, in a non-operating state in which the battery is not yet placed on the battery holder 6 or the battery is already placed on the battery holder 6 but is not yet pressed down, the first connecting piece 61 is located at the initial position due to the elastic force of the first spring 113, the battery holder 6 is arched upward as a whole, and both ends of the battery are not in contact with the positive contact terminal 3 and the negative contact terminal 4;
as shown in fig. 8, in a critical state, at this time, the hinge point of the first connecting piece 61 and the second connecting piece 62 on the battery holder 6 is slightly lower than the hinge point of the second connecting piece 62 and the battery holder and the plane end where the first connecting piece 61 is arranged at one end of the guide groove 112, at this time, the negative electrode end of the battery is in contact with the negative electrode contact terminal 4, the positive electrode end of the battery is not in contact with the positive electrode contact terminal 3, and the charging circuit is disconnected. According to the mechanics principle, at this time, when the hinge point of the first connecting piece 61 and the second connecting piece 62, the hinge end of the second connecting piece 62 and the battery holder and the end of the first connecting piece 61 arranged on the guide slot 112 are on the same plane, the hinge point of the first connecting piece 61 and the second connecting piece 62 is a dead point, and when the hinge point of the first connecting piece 61 and the second connecting piece 62 is higher than the dead point, the battery holder 6 is arched upwards by the elastic force generated by the first spring 113; when the height of the hinge point of the first connecting piece 61 and the second connecting piece 62 is lower than the dead point position, the battery frame 6 is pressed downwards by the elastic force generated by the first spring 113;
as shown in fig. 9, in the operating state, at this time, the first connecting piece 61 and the second connecting piece 62 are horizontal and tightly attached to the bottom of the battery jar 11, the hinge point of the first connecting piece 61 and the second connecting piece 62 is located below the dead point position, at this time, the positive electrode and the negative electrode of the battery are respectively contacted with the positive contact terminal 3 and the negative contact terminal 4, and the charging loop is closed to charge the battery.
When the hinge point of the first connecting piece 61 and the second connecting piece 62 is hinged to the other end of the battery holder with the second connecting piece 62 and the end of the first connecting piece 61 arranged in the guide groove 112 is positioned on the same plane, in the dead-center state, when the hinge point of the first connecting piece 61 and the second connecting piece 62 is at the lowest position, in the working state, the height difference between the hinge point dead center state of the first connecting sheet 61 and the second connecting sheet 62 and the working state is H, the height difference between the first limiting hole 7121 and the second limiting hole 7131 in the power-off energy-saving unit 7 is H, H is slightly smaller than H, so that the energy-saving unit 7 pushes the hinge point of the first connecting piece 61 and the second connecting piece 62 to a position slightly lower than the dead point, when the energy-saving unit 7 does not provide the abutting force, the hinge point of the first connecting piece 61 and the second connecting piece 62 can still move downwards by the elastic force of the first spring 113. Since the position of the hinge point of the first connecting piece 61 and the second connecting piece 62 is changed little in the critical state and the working state, the position change of the hinge point can be influenced by providing a little normal force.
The working principle is as follows:
when charging, the battery is placed on the battery and pressed down, so that the battery frame 6 is changed from an arched state to a horizontal state, at this time, the hinged position of the first connecting sheet 61 and the second connecting sheet 62 is pressed on the boss 721 of the sliding block 72 of the power-off energy-saving unit 7, the sliding block 72 is pressed down, when the battery is pressed to a charging position, the battery frame 6 is horizontal, the hinged position of the first connecting sheet 61 and the second connecting sheet 62 is located at the lowest point, the sliding block 72 is located below the second clamping portion 741 of the second elastic sheet 74, at this time, the positive electrode and the negative electrode of the battery are respectively contacted with the positive contact terminal 3 and the negative contact terminal 4, and the charging loop is closed to charge the battery.
When the power is suddenly cut off, the charging circuit board 2 sends a power-off signal, the third electric absorbing unit 77 is electrified for a short time to enable the second elastic sheet 74 to retract, the sliding block 72 moves upwards due to the elastic force of the second spring 722 and is blocked by the first clamping part 731 of the first elastic sheet 73, at this time, the critical state is about to be entered, the negative electrode end of the battery is in contact with the negative electrode contact terminal 4, the positive electrode end of the battery is not in contact with the positive electrode contact terminal 3, and the charging loop is disconnected;
when the power is supplied again, the charging circuit board 2 sends a starting signal, the first electric suction unit 75 is electrified for a short time to enable the sliding block 72 to move downwards and be clamped by the second elastic sheet 74, the hinged position of the first connecting sheet 61 and the second connecting sheet 62 is lower than the dead point position of the critical state, the hinged position of the first connecting sheet 61 and the second connecting sheet 62 moves downwards due to the elasticity of the first spring 113 to return to the working state again, and the charging loops are communicated.
After the battery is fully charged, the charging circuit board 2 sends an end signal, the second electric suction unit 76 and the third electric suction unit 77 are electrified for a short time to retract the first elastic sheet 73 and the second elastic sheet 74, the slider 72 moves upwards due to the elastic force of the second spring 722 to push the hinged part of the first connecting sheet 61 and the second connecting sheet 62 to a position higher than a dead point, and the hinged part of the first connecting sheet 61 and the second connecting sheet 62 moves upwards due to the elastic force of the first spring 113 to return to a non-working state.
A charging method, which is applied to the energy-saving charging device, the method comprising the following steps:
s1: the method comprises the steps of pre-charging the battery for 0.5-1 h at a constant current at a charging rate of 0.3C according to the capacity of the battery, and preventing the battery from being charged and damaged by high current, wherein C is the capacity of the battery and has a unit of mA;
s2: the battery is rapidly charged at constant voltage by the full-charge voltage of the battery, and the charging current is detected in real time;
s3: and when the charging current is 0.05C, charging by adopting a constant current battery of 0.01-0.05C for 0.5-1 h, so that the electric quantity of the storage battery is kept full.
The invention has the advantages that the charging loop of the battery and the charger can be disconnected after the battery is fully charged, thereby preventing potential safety hazard caused by overcharging of the battery, effectively prolonging the service life of the battery, reducing the pollution of discarded batteries to the environment, simultaneously preventing electric parts of the charger from continuously working to waste electric power, and when power failure occurs, the charger can temporarily disconnect the charging loop, preventing the battery from discharging through the charging loop, and resetting the battery to a charging position for charging when the electric power is recovered, effectively avoiding energy waste, one charging device can charge at least one battery for at least one hundred times, and after large-area popularization, the number of saved electric quantity is considerable, thereby being beneficial to environmental protection.
The parts not specifically described in the present invention can all adopt the mature functional modules in the prior art, and are not described herein again.
Claims (8)
1. An energy-saving charging device for a rechargeable battery, comprising:
the charging device comprises a base (1), a charging circuit board (2), a positive electrode contact terminal (3), a negative electrode contact terminal (4) and a plug (5), wherein at least one battery jar (11) providing a charging position is arranged on the base (1), the positive electrode contact terminal (3) and the negative electrode contact terminal (4) are respectively arranged at two ends of the battery jar (11) and used for charging a battery, the charging circuit board (2) is arranged in the base (1), the plug (5) used for connecting a mains supply is hinged to the bottom of the base (1), the charging circuit board (2) is respectively and electrically connected with the positive electrode contact terminal (3), the negative electrode contact terminal (4) and the plug (5), and the mains supply is converted into direct current to charge the battery;
the charging device is characterized by further comprising a battery frame (6) and a power-off energy-saving unit (7), wherein the battery frame (6) is arranged in a battery tank (11), the power-off energy-saving unit (7) is arranged in the base (1) and is positioned below the battery tank (11), and the charging circuit board (2) is electrically connected with the power-off energy-saving unit (7);
the battery holder (6) includes: the battery pack comprises a first connecting piece (61) and a second connecting piece (62), wherein the first connecting piece (61) is arranged on the side close to a negative contact terminal (4) in a battery jar (11), the second connecting piece (62) is arranged on the side close to a positive contact terminal (3) in the battery jar (11), and the length of the first connecting piece (61) is greater than that of the second connecting piece (62);
one end of the first connecting piece (61) is provided with a first bent part (611) bent downwards, one end of the second connecting piece (62) is provided with a second bent part (621) bent downwards, and the end part of the first bent part (611) is hinged with the end part of the second bent part (621);
an opening (111) allowing the first bending part (611) and the second bending part (621) to penetrate is formed in the battery jar (11), and the power-off energy-saving unit (7) is arranged in the opening (111);
the other end of the second connecting sheet (62) is hinged with the bottom of the positive pole side of the battery jar (11).
2. The energy-saving charging device according to claim 1, wherein a convex pillar (612) is arranged on two sides of the other end of the first connecting sheet (61), a guide groove (112) matched with the convex pillar (612) is arranged at the bottom of the negative electrode side of the battery container (11), the convex pillar (612) can freely slide in the guide groove (112), a first spring (113) is arranged in the guide groove (112), and one end of the first spring (113) is fixedly connected to the side, close to the negative contact terminal (4), in the guide groove (112).
3. The energy-saving charging device according to claim 2, wherein a stop piece (613) is arranged at one end of the first connecting piece (61) close to the negative contact terminal (4), the stop piece (613) is fixedly arranged at one side of the first connecting piece (61) close to the negative contact terminal (4), and the stop piece (613) is crescent-shaped or circular;
the first connecting piece (61) is also provided with an arc-shaped wing plate (614) for clamping the battery.
4. The energy-saving charging device according to claim 2, wherein the power-off energy-saving unit (7) is arranged below the hinge joint of the first connecting piece (61) and the second connecting piece (62), and the power-off energy-saving unit (7) comprises: the electric heating device comprises an accommodating box (71), a sliding block (72), a first elastic sheet (73), a second elastic sheet (74), a first electric suction unit (75), a second electric suction unit (76) and a third electric suction unit (77);
the accommodating box (71) is arranged in the opening (111), a first accommodating cavity (711) is formed in the middle of the accommodating box (71), the top end of the first accommodating cavity (711) is open, the first electric suction unit (75) is arranged at the bottom of the first accommodating cavity (711), and the sliding block (72) is arranged above the first electric suction unit (75) and is connected with the first electric suction unit (75) through a second spring (722);
a boss (721) is arranged on the sliding block (72);
a second accommodating cavity (712) and a third accommodating cavity (713) are respectively arranged on two sides of the first accommodating cavity (711) on the accommodating box (71).
5. The energy-saving charging device according to claim 4, wherein a first limiting hole (7121) communicated with the first accommodating cavity (711) is formed in the side wall of the second accommodating cavity (712), the first elastic sheet (73) and the second electric suction unit (76) are arranged in the second accommodating cavity (712), one end of the first elastic sheet (73) is connected to the inner wall of the second accommodating cavity (712), the other end of the first elastic sheet (73) is provided with a first clamping portion (731), and the first clamping portion (731) is arranged in the first limiting hole (7121) and protrudes out of the side wall of the first accommodating cavity (711);
the second electric suction unit (76) is arranged on one side, opposite to the first accommodating cavity (711), of the first elastic sheet (73).
6. The energy-saving charging device according to claim 5, wherein a second limiting hole (7131) communicated with the first accommodating cavity (711) is formed in the side wall of the third accommodating cavity (713), a second elastic sheet (74) and a third electric suction unit (77) are arranged in the third accommodating cavity (713), one end of the second elastic sheet (74) is connected to the inner wall of the third accommodating cavity (713), a second clamping portion (741) is arranged at the other end of the second elastic sheet (74), and the second clamping portion (741) is arranged in the second limiting hole (7131) and protrudes out of the side wall of the first accommodating cavity (711);
the third electric suction unit (77) is arranged on one side, opposite to the first accommodating cavity (711), of the second elastic sheet (74).
7. The energy-saving charging device according to claim 1, wherein the positive contact terminal (3) is arranged at the positive electrode of the battery jar (11), the surface of the positive contact terminal (3) is provided with a lapping bulge (31), and when the battery is positioned at the charging position, the lower edge of the positive end of the battery is lapped on the lapping bulge (31).
8. The energy-saving charging device according to claim 6, wherein a dead-center state is established when the hinge point of the first connecting piece (61) and the second connecting piece (62) is hinged to the other end of the battery holder from the second connecting piece (62) and the first connecting piece (61) is disposed on the same plane as the one end of the guide groove (112);
when the hinge point of the first connecting sheet (61) and the second connecting sheet (62) is at the lowest position, the working state is realized;
the height difference between the hinge point dead point state and the working state of the first connecting sheet (61) and the second connecting sheet (62) is H, the height difference between the first limiting hole (7121) and the second limiting hole (7131) in the power-off energy-saving unit (7) is H, and the H is slightly smaller than H.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401801.8A CN111030252B (en) | 2019-12-31 | 2019-12-31 | Energy-saving charging device for rechargeable battery and charging method thereof |
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| CN201911401801.8A CN111030252B (en) | 2019-12-31 | 2019-12-31 | Energy-saving charging device for rechargeable battery and charging method thereof |
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| CN111030252B true CN111030252B (en) | 2020-10-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1206763C (en) * | 2000-12-27 | 2005-06-15 | 台达电子工业股份有限公司 | Switchable battery charger and its charge method |
| CN201440669U (en) * | 2009-06-29 | 2010-04-21 | 深圳市好易通科技有限公司 | Opening structure of pop-up battery |
| CN102480139A (en) * | 2010-11-19 | 2012-05-30 | 英业达股份有限公司 | Automatic power-off device for charger |
| US10291047B2 (en) * | 2014-06-26 | 2019-05-14 | Intel Corporation | Adaptive step and charge current battery charging |
| WO2016041125A1 (en) * | 2014-09-15 | 2016-03-24 | 深圳市聚作照明股份有限公司 | Automatic battery charging circuit for emergency illumination |
| CN109660005A (en) * | 2019-01-22 | 2019-04-19 | 深圳市金宏电子有限公司 | A kind of lithium battery charging system and method based on solar energy |
| CN209488211U (en) * | 2019-01-23 | 2019-10-11 | 湖南化工职业技术学院 | A kind of charging unit of electric automatization equipment |
| CN209184292U (en) * | 2019-01-28 | 2019-07-30 | 山西长韩新能源科技有限公司 | A kind of lithium ion secondary battery intelligent charger |
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