CN112117428A

CN112117428A - Power battery protection device with service life maintenance function

Info

Publication number: CN112117428A
Application number: CN202010942256.XA
Authority: CN
Inventors: 王柯辙
Original assignee: Xianju Panjia Electronic Technology Co ltd
Current assignee: Xianju Panjia Electronic Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2020-12-22

Abstract

The invention discloses a power battery protection device for maintaining service life, which comprises a machine body, wherein a working cavity is arranged in the machine body, a rack plate is fixedly arranged on the inner wall of the front side of the working cavity, a through hole is formed in the upper wall body of the machine body, a fixing plate is fixedly arranged on the inner walls of the left side and the right side, an overcharge protection component for overcharge protection of a lithium battery is arranged in the working cavity, the overcharge protection component comprises a fixing box fixedly arranged with the fixing plate, the right wall body of the fixing box is provided with a lifting groove, and a ventilation plate is fixedly arranged on the bottom wall body of the fixing box, the operation is simple and convenient, and the service life of the lithium battery is prolonged.

Description

Power battery protection device with service life maintenance function

Technical Field

The invention relates to the field of novel power batteries, in particular to a power battery protection device with a service life maintained.

Background

The power battery for the new energy automobile mainly comprises a lead-acid battery, a nickel-metal hydride battery, a lithium battery and a hydrogen fuel battery. At present, the lithium battery has great advantages in energy density, service life and environmental protection performance, and is the first choice of the power battery. The lithium battery can discharge under the no-load state, and the electric quantity is wasted. When charging the lithium cell, often can be because charge time overlength to damage the life-span of lithium cell, when charging voltage was too big, the lithium cell generates heat easily, when charging the lithium cell, often can lead to the lithium cell overcharge, influences the lithium cell in follow-up use.

Disclosure of Invention

Aiming at the technical defects, the invention provides a power battery protection device with a service life, which can overcome the defects.

The invention relates to a power battery protection device for maintaining service life, which comprises a machine body, wherein a working cavity is arranged in the machine body, a rack plate is fixedly arranged on the inner wall of the front side of the working cavity, a through hole is formed in the upper wall body of the machine body, a fixing plate is fixedly arranged on the inner walls of the left side and the right side, an overcharge protection assembly for overcharge protection of a lithium battery is arranged in the working cavity, the overcharge protection assembly comprises a fixing box fixedly arranged with the fixing plate, a lifting groove is formed in the right wall body of the fixing box, a ventilation plate is fixedly arranged on the bottom wall body of the fixing box, a conductor is fixedly arranged at the upper end of an electromagnet, a wedge plate is slidably arranged on the inner wall of the bottom side of the fixing box in the left-right direction, a telescopic spring fixedly arranged on the left side of the wedge plate and the inner wall of the left side, the inner wall of the bottom side of the fixed box is provided with a buffer spring, a lithium battery matched with the buffer spring can be installed in the fixed box, the inner wall of the left side of the working cavity is vertically and slidably provided with a movable plate, the inner wall of the rear side of the working cavity is vertically and slidably provided with a butt plate, the left end of the fixed box is vertically and slidably provided with a displacement block in left and right sliding fit with the butt plate, an inclined groove is arranged in the displacement block, the front end of the movable plate is provided with a slide rod in sliding fit with the inclined groove, the lower part of the displacement block is provided with a connecting groove, the inner wall of the top side of the connecting groove is rotatably provided with a connecting shaft extending vertically, the connecting shaft is fixedly connected with a connecting gear capable of being meshed with the rack plate, the inner wall of the left side of the working cavity is vertically and slidably provided with a lifting block, the butt plate is fixedly connected with the lifting block through a, and a damping and heat-dissipating component for damping and dissipating heat of the lithium battery is further arranged in the working cavity.

Advantageously, the overcharge protection assembly further comprises a driving motor fixedly mounted on the inner wall of the bottom side of the working chamber, a driving shaft is arranged at the upper end of the driving motor, a driving sleeve in threaded connection with the movable plate is in spline fit on the driving shaft, the driving sleeve is rotatably mounted on the lifting block, a transmission groove is arranged in the lifting block, output shafts extending forwards and backwards are rotatably mounted on the inner walls of the front and rear sides of the working chamber, an input shaft positioned below the output shafts is rotatably mounted on the inner walls of the front and rear sides of the working chamber, an output gear in meshed connection with the inner wall of the left side of the transmission groove is fixedly connected on the output shaft, a driven block capable of being adsorbed by the conductor is slidably mounted on the fixed plate left and right, an input gear meshed with the driven block is fixedly connected on the input shaft, and a driving plate, the output shaft is fixedly connected with a grooved pulley which is connected with the drive plate in an intermittent rotation mode, the inner wall of the rear side of the connecting groove is rotatably provided with a transition shaft which extends forwards and backwards, the transition shaft is in transmission connection with the connecting shaft through a bevel gear, the inner wall of the rear side of the connecting groove is rotatably provided with a connecting shaft which extends forwards and backwards, the connecting shaft is in transmission connection with the transition shaft through a belt pulley, the transition shaft is fixedly connected with a transition contact, the connecting shaft is fixedly connected with a connecting contact, and the transition contact and the connecting contact can be opened to charge the lithium battery.

Advantageously, the shock absorption and heat dissipation assembly comprises a ratchet wheel fixedly connected with the driving shaft, a driving belt wheel with a cavity is rotatably mounted on the driving shaft, the driving belt wheel can be rotatably connected with the ratchet wheel, a rotating shaft extending up and down is rotatably mounted on the inner wall of the bottom side of the working cavity, and fan blades are arranged at the tail end of the rotating shaft which is in transmission connection with the driving belt wheel through a belt wheel.

Beneficially, the no-load protection assembly comprises an electromagnet fixedly mounted on the fixed plate, a conducting plate capable of being adsorbed by the electromagnet is mounted on the fixed plate in a left-right sliding mode, an extension spring fixedly mounted on the inner wall of the right side of the working cavity is arranged at the right end of the conducting plate, a folding sealing plate is mounted in the lifting groove in a sealing mode, a clamp and a plate capable of being connected with the lithium battery are arranged in the folding sealing plate, and the clamp and the plate can be abutted against the conducting plate to be electrified.

Beneficially, the no-load protection assembly further comprises an electric quantity warning indicator fixedly mounted on the fixed plate, a pressure spring fixedly mounted on the inner wall of the left side of the working cavity is arranged at the left end of the driven block, a fixed shaft is rotatably mounted on the inner wall of the front side of the through hole, a ventilation baffle capable of blocking the through hole is fixedly connected to the fixed shaft, and a rotating handle located outside the machine body is fixedly connected to the rear end of the fixed shaft.

The invention has the beneficial effects that: the device during operation can make the lithium cell be full of the automatic power-off protection after the electricity through overcharging protection subassembly, can make the lithium cell disconnection when out of work through the overload protection subassembly, can make the lithium cell during operation heat dissipation protection and prevent that the lithium cell from acutely rocking through the shock attenuation radiator unit, and easy operation is convenient, has improved lithium cell life.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further explained below with reference to the figures and examples;

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

FIG. 2 is a schematic view of the structure A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of B of FIG. 1;

fig. 4 is an enlarged schematic view of C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The power battery protection device for maintaining the service life comprises a machine body 11, wherein a working cavity 12 is arranged in the machine body 11, a rack plate 25 is fixedly arranged on the inner wall of the front side of the working cavity 12, a through hole 26 is arranged on the upper wall body of the machine body 11, fixing plates 17 are fixedly arranged on the inner walls of the left side and the right side of the machine body 1, an overcharge protection assembly for overcharge protection of a lithium battery is arranged in the working cavity 12, the overcharge protection assembly comprises a fixing box 16 fixedly arranged with the fixing plate 17, a lifting groove 21 is arranged on the right wall body of the fixing box 16, a vent plate 15 is fixedly arranged on the bottom wall body of the fixing box 16, a conductor 29 is fixedly arranged at the upper end of an electromagnet 18, a wedge plate 57 is arranged on the inner wall of the bottom side of the fixing box 16 in a left-right sliding mode, a telescopic spring 58 fixedly arranged, the utility model discloses a solar energy collector, including wedge plate 57, conducting block 59, be provided with on the conducting block 59 with the winding wire 30 of conductor 29, fixed case 16 bottom side inner wall is provided with buffer spring 23, can install in the fixed case 16 with buffer spring 23 complex lithium cell 24, sliding mounting has movable plate 40 from top to bottom on the inner wall of working chamber 12 left side, sliding mounting has butt joint board 38 from top to bottom on the inner wall of working chamber 12 rear side, sliding mounting has on the left end of fixed case 16 up and down with butt joint board 38 side-to-side sliding fit's displacement piece 39, be provided with inclined groove 41 in the displacement piece 39, the movable plate 40 front end be provided with inclined groove 41 sliding fit's slide bar 42, displacement piece 39 lower part is provided with links up groove 50, link up axle 51 that extends from top to bottom is installed in the rotation of link up groove 50 top side inner wall, fixedly connected with on linking axle 51 can with the linking gear 52 of rack plate 25, the lifting block 35 is slidably mounted on the inner wall of the left side of the working cavity 12 up and down, the abutting plate 38 is fixedly connected with the lifting block 35 through a connecting plate 37, an idle load protection component for preventing power consumption of the lithium battery during idle load is arranged on the right side of the fixing box 16, and a shock absorption and heat dissipation component for absorbing shock and dissipating heat of the lithium battery is further arranged in the working cavity 12.

Advantageously, the overcharge protection assembly further comprises a driving motor 64 fixedly mounted on the inner wall of the bottom side of the working chamber 12, a driving shaft 33 is disposed at the upper end of the driving motor 64, a driving sleeve 34 threadedly connected with the moving plate 40 is spline-fitted on the driving shaft 33, the driving sleeve 34 is rotatably mounted on the lifting block 35, a transmission groove 36 is disposed in the lifting block 35, output shafts 47 extending forward and backward are rotatably mounted on the inner walls of the front and rear sides of the working chamber 12, input shafts 43 located below the output shafts 47 are rotatably mounted on the inner walls of the front and rear sides of the working chamber 12, an output gear 48 engaged with the inner wall of the left side of the transmission groove 36 is fixedly connected to the output shafts 47, driven blocks 45 capable of being attracted by the conductors 29 are slidably mounted on the fixing plate 17 from left to right, and an input gear 46 engaged with the driven blocks 45 is fixedly connected to the input shafts, a dial plate 44 is fixedly connected to the input shaft 43, a grooved pulley 49 intermittently and rotatably connected to the dial plate 44 is fixedly connected to the output shaft 47, a transition shaft 53 extending forward and backward is rotatably installed on the inner wall of the rear side of the engagement groove 50, the transition shaft 53 is in transmission connection with the engagement shaft 51 through a bevel gear, a connecting shaft 55 extending forward and backward is rotatably installed on the inner wall of the rear side of the engagement groove 50, the connecting shaft 55 is in transmission connection with the transition shaft 53 through a belt pulley, a transition contact 54 is fixedly connected to the transition shaft 53, a connecting contact 56 is fixedly connected to the connecting shaft 55, the transition contact 54 and the connecting contact 56 can be opened to charge the lithium battery 24, when the lithium battery 24 needs to be charged, the driving motor 64 is started to rotate forward, so that the moving plate 40 is driven to move upward through the rotation of the driving sleeve 34, when the displacement block 39 contacts the abutting plate 38, the moving plate 40 continues to move upwards, at this time, the displacement block 39 moves rightwards on the abutting plate 38 under the action of the inclined groove 41 and the sliding rod 42, so that the engaging gear 52 is rotated through the rack plate 25, the transition shaft 53 is rotated through bevel gear transmission, the connecting shaft 55 is rotated through belt pulley transmission, so that lithium batteries are charged in abutting connection through the rotation of the transition contact 54 and the connecting contact 56, when the lithium batteries 24 are fully charged, the dial 44 just engages with the groove of the groove wheel 49, the voltage of the lead 30 is increased through the conductive block 59, so that the generated electromagnetic force is increased, the driven block 45 moves rightwards through the conductor 29, and the input shaft 43 is rotated through the input gear 46, the grooved wheel 49 is rotated by the dial 44, so that the lifting block 35 is moved upward by the rotation of the output gear 48, so that the abutting plate 38 is moved upward by the coupling plate 37, and at the same time, the moving plate 40 is moved upward by the driving sleeve 34, so that the displacement block 39 continues to engage with the abutting plate 38, and the transition contact 54 is disengaged from the connection contact 56.

Advantageously, the shock absorption and heat dissipation assembly comprises a ratchet wheel 27 fixedly connected with the driving shaft 33, a driving pulley 28 with a cavity is rotatably mounted on the driving shaft 33, the driving pulley 28 can be rotatably connected with the ratchet wheel 27, a rotating shaft 13 extending up and down is rotatably mounted on the inner wall of the bottom side of the working chamber 12, a fan blade 14 is arranged at the tail end of the rotating shaft 13, the rotating shaft 13 is in transmission connection with the driving pulley 28 through a pulley, so that the ratchet wheel 27 is driven to rotate forward through forward rotation of the driving motor 64, the rotating shaft 13 is driven to rotate through the driving pulley 28, and thus the lithium battery 24 is blown and dissipated heat through rotation of the fan blade 14.

Advantageously, the no-load protection assembly comprises an electromagnet 18 fixedly mounted on the fixed plate 17, a conductive plate 19 capable of being adsorbed by the electromagnet 18 is slidably mounted on the fixed plate 17 from left to right, an extension spring 20 fixedly mounted on the inner wall of the right side of the working chamber 12 is arranged at the right end of the conductive plate 19, a folding sealing plate 22 is hermetically mounted in the lifting groove 21, a clamping plate 60 capable of being connected with the lithium battery 24 is arranged in the folding sealing plate 22, and the clamping plate 60 can be abutted against the conductive plate 19 for energization.

Advantageously, the no-load protection assembly further comprises an electric quantity alarm 31 fixedly mounted on the fixing plate 17, the left end of the driven block 45 is provided with a pressure spring 32 fixedly mounted on the left inner wall of the working chamber 12, the front inner wall of the through hole 26 is rotatably mounted with a fixing shaft 61, the fixing shaft 61 is fixedly connected with an air permeable baffle 62 capable of blocking the through hole 26, the rear end of the fixing shaft 61 is fixedly connected with a rotating handle 63 positioned outside the machine body 11, the fixing shaft 61 is manually rotated to open the air permeable baffle 62, the lithium battery 24 is placed in the fixing box 16, so that the wedge plate 57 is driven to move leftwards, the lithium battery 24 is buffered by the expansion spring 58 and the buffer spring 23, and is simultaneously connected with the card and the plate 60 to operate, when the lithium battery 24 is no-load, the electromagnet 18 is started to close, therefore, the conductive plate 19 moves rightwards under the action of the extension spring 20, so that the conductive plate 19 is separated from the card and the plate 60, when the electric quantity of the lithium battery 24 is too low, the voltage of the lead 30 is lower, so that the driven block 45 moves leftwards under the action of the pressure spring 32, and the lifting block 35 moves downwards to contact the electric quantity alarm 31, so that people can be reminded.

In the initial state: the extension spring 58 and the buffer spring 23 are in a natural extension state, the pressure spring 32 and the extension spring 20 are in a stretched state, the rack plate 25 is not engaged with the engaging gear 52, and the transition contact 54 and the connection contact 56 are located in the engaging groove 50.

The use steps herein are described in detail below with reference to fig. 1-4: the fixed shaft 61 is manually rotated to open the air permeable baffle 62, the lithium battery 24 is placed in the fixed box 16, so that the wedge-shaped plate 57 is driven to move leftwards, the lithium battery 24 is buffered through the expansion spring 58 and the buffer spring 23, meanwhile, the lithium battery 24 is connected with the clamping plate 60 to work, when the lithium battery 24 needs to be charged, the driving motor 64 is started to rotate forwards, so that the moving plate 40 is driven to move upwards through the rotation of the driving sleeve 34, when the displacement block 39 touches the abutting plate 38, the moving plate 40 continues to move upwards, at the moment, the displacement block 39 moves rightwards on the abutting plate 38 under the action of the inclined groove 41 and the sliding rod 42, so that the engaging gear 52 rotates through the rack plate 25, so that the transition shaft 53 rotates through the bevel gear transmission, so that the connecting shaft 55 rotates through the belt wheel transmission, so that the lithium battery is abutted and charged through the rotation of the transition contact, when the lithium battery 24 is fully charged, the dial 44 is just clamped with the groove of the grooved wheel 49, the voltage of the lead 30 is increased through the conductive block 59, so that the generated electromagnetic force is increased, the driven block 45 is moved rightwards through the conductor 29, the input shaft 43 is driven to rotate through the input gear 46, the grooved wheel 49 is driven to rotate through the dial 44, the lifting block 35 is driven to move upwards through the rotation of the output gear 48, the abutting plate 38 is driven to move upwards through the connecting plate 37, and meanwhile, the moving plate 40 is driven to move upwards through the driving sleeve 34, so that the displacement block 39 is continuously matched with the abutting plate 38, and the transition contact 54 is separated from the connecting contact 56; so that the ratchet wheel 27 is driven to rotate forward by the driving motor 64, and the rotating shaft 13 is driven to rotate by the driving belt wheel 28, so that the lithium battery 24 is blown and cooled by the rotation of the fan blades 14; when the lithium battery 24 is in idle load, the electromagnet 18 is started to be turned off, so that the conductive plate 19 moves rightwards under the action of the extension spring 20, the conductive plate 19 is separated from the clamping plate 60, when the electric quantity of the lithium battery 24 is too low, the voltage of the lead 30 is lower, the driven block 45 moves leftwards under the action of the pressure spring 32, the lifting block 35 moves downwards to contact the electric quantity alarm 31, and people are reminded.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a maintain power battery protection device of life-span, includes the organism, its characterized in that: the lithium battery charger is characterized in that a working cavity is arranged in the machine body, a rack plate is fixedly mounted on the inner wall of the front side of the working cavity, a through hole is formed in the upper wall body of the machine body, a fixing plate is fixedly mounted on the inner walls of the left side and the right side, an overcharge protection assembly for overcharge protection of a lithium battery is arranged in the working cavity, the overcharge protection assembly comprises a fixing box fixedly mounted on the fixing plate, a lifting groove is formed in the right wall body of the fixing box, a breathable plate is fixedly mounted on the bottom wall body of the fixing box, a conductor is fixedly mounted at the upper end of an electromagnet, a wedge plate is slidably mounted on the inner wall of the bottom side of the fixing box left side, a telescopic spring fixedly mounted on the inner wall of the left side of the fixing box is arranged on the left side of the wedge plate, a conductive block, the lithium battery matched with the buffer spring can be installed in the fixed box, the movable plate is installed on the inner wall of the left side of the working cavity in an up-and-down sliding mode, the abutting plate is installed on the inner wall of the rear side of the working cavity in an up-and-down sliding mode, the displacement block matched with the abutting plate in a left-and-right sliding mode is installed on the left end of the fixed box in an up-and-down sliding mode, an inclined groove is formed in the displacement block, a sliding rod matched with the inclined groove in a sliding mode is arranged at the front end of the movable plate, a connecting groove is formed in the lower portion of the displacement block, a connecting shaft extending up and down is installed on the inner wall of the top side of the connecting groove in a rotating mode, a connecting gear capable of being meshed with the rack plate is fixedly connected to the connecting shaft, a lifting block is installed on the inner wall of the left side, and a damping and heat-dissipating component for damping and dissipating heat of the lithium battery is further arranged in the working cavity.

2. A service life power battery protection device as claimed in claim 1, wherein: the overcharge protection assembly further comprises a driving motor fixedly mounted on the inner wall of the bottom side of the working cavity, a driving shaft is arranged at the upper end of the driving motor, a driving sleeve in threaded connection with the movable plate is in spline fit on the driving shaft, the driving sleeve is rotatably mounted with the lifting block, a transmission groove is arranged in the lifting block, output shafts extending forwards and backwards are rotatably mounted on the inner walls of the front side and the rear side of the working cavity, an input shaft positioned below the output shaft is rotatably mounted on the inner walls of the front side and the rear side of the working cavity, an output gear in meshed connection with the inner wall of the left side of the transmission groove is fixedly connected on the output shaft, a driven block capable of being adsorbed by the conductor is slidably mounted on the fixed plate leftwards and rightwards, an input gear meshed with the driven block is fixedly connected on the input shaft, a driving plate is fixedly connected on the input shaft, and, the inner wall of the rear side of the linking groove is rotatably provided with a transition shaft extending forwards and backwards, the transition shaft is in transmission connection with the linking shaft through a bevel gear, the inner wall of the rear side of the linking groove is rotatably provided with a connecting shaft extending forwards and backwards, the connecting shaft is in transmission connection with the transition shaft through a belt pulley, a transition contact is fixedly connected onto the transition shaft, a connecting contact is fixedly connected onto the connecting shaft, and the transition contact and the connecting contact can be opened to charge the lithium battery.

3. A service life power battery protection device as claimed in claim 2, wherein: the shock attenuation radiator unit include with drive shaft fixed connection's ratchet, rotate on the drive shaft and install the drive pulley that has the cavity, the drive pulley can with the ratchet rotates and is connected, the axis of rotation that extends about the rotation is installed in the rotation of working chamber bottom side inner wall, the axis of rotation end is provided with the flabellum, the axis of rotation pass through the band pulley with the drive pulley transmission is connected.

4. A service life power battery protection device as claimed in claim 1, wherein: the no-load protection assembly comprises an electromagnet fixedly mounted on a fixed plate, a current conducting plate capable of being adsorbed by the electromagnet is mounted on the fixed plate in a left-right sliding mode, an extension spring fixedly mounted on the inner wall of the right side of the working cavity is arranged at the right end of the current conducting plate, a folding sealing plate is mounted in the lifting groove in a sealing mode, a card and a plate capable of being connected with a lithium battery are arranged in the folding sealing plate, and the card and the plate can be in butt connection with the current conducting plate to be electrified.

5. A service life power battery protection device as claimed in claim 4, wherein: the no-load protection assembly further comprises an electric quantity warning device fixedly mounted on the fixing plate, a pressure spring fixedly mounted on the inner wall of the left side of the working cavity is arranged at the left end of the driven block, a fixing shaft is rotatably mounted on the inner wall of the front side of the through hole, a ventilating baffle capable of blocking the through hole is fixedly connected to the fixing shaft, and a rotating handle located outside the machine body is fixedly connected to the rear end of the fixing shaft.