CN215073500U

CN215073500U - Lithium electric tool with stable power supply structure

Info

Publication number: CN215073500U
Application number: CN202121276363.XU
Authority: CN
Inventors: 彭俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-07
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a lithium electric tool with stable power supply structure, which comprises a lithium electric tool main body, wherein the bottom of the lithium electric tool main body is fixedly connected with a basic assembly, and the top of the inner side of the basic assembly is fixedly connected with an interlocking assembly; in this scheme, through the chain subassembly that sets up, under the mutually supporting of parts such as second buffering subassembly and intelligent control system, can play certain buffering effect, buffer spring adopts the lower spring of elasticity coefficient, therefore can be under the condition of low frequency vibrations, and then can play good buffering effect in the certain limit, can be under the condition of high frequency vibrations, still can play good protection effect to the circuit board, thereby can effectively guarantee the stability behind circuit board and the power cord contact connection, can also reduce the phenomenon that lithium cell group power module fills the drum effectively, the life of extension lithium cell group power module, the fire incident that causes because lithium cell group power module overcharge has been reduced.

Description

Lithium electric tool with stable power supply structure

Technical Field

The utility model relates to a lithium electric tool technical field, more specifically say, it relates to a lithium electric tool with stabilize power supply structure.

Background

Because lithium electric tool only has a power supply mode, supply power through lithium cell group promptly, when lithium cell group electroless, need change the group battery, the electroless battery needs to charge on battery socket, the limit is not charged and the limit uses the structure, function for realizing the limit is charged and the limit is used, generally can be at its inside installation control circuit board, fixed mounting is realized through the screw to the circuit board in the past many directly, and lithium electric tool easily produces comparatively strong vibrations at the in-process of work, and then influence the stability of circuit board and power cord contact easily, still continue to be the shortcoming of charging for lithium cell group after lithium cell group is full of the electricity, the serious waste electric energy, potential safety hazard has, therefore, the urgent need for one kind of lithium electric tool with stable power supply structure at present stage solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a lithium electric tool with stabilize power supply structure, it has long-time power supply, stability is high and prevent characteristics such as overcharge.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a lithium electric tool with stabilize power supply structure, includes lithium electric tool main part, the bottom fixedly connected with basic component of lithium electric tool main part, the chain subassembly of the inboard top fixedly connected with of basic component, be provided with intelligent control system on the chain subassembly, be provided with first heavy buffering subassembly and second heavy buffering subassembly on the chain subassembly respectively.

Through adopting above-mentioned technical scheme, can play certain buffering effect, buffer spring adopts the lower spring of elasticity coefficient, therefore can be under the condition of low frequency vibrations, and then can play good buffering effect in the certain limit, can still play good protection effect to the circuit board under the condition of high frequency vibrations.

Further, the basic unit includes the block terminal, the top of block terminal and the bottom fixed connection of lithium electric tool main part, be provided with the lid in the port that the block terminal bottom set up, the card is equipped with the power cord on the side end face of block terminal, the one end electric connection that the block terminal was kept away from to the power cord has the bayonet joint.

By adopting the technical scheme, the locking screw is connected into the through connecting hole formed in the circuit board, and then the threaded connection relation between the locking screw and the locking nut is utilized.

Furthermore, the interlocking component comprises a buffering inner shaft and a buffering outer barrel, the top end of the buffering inner shaft is fixedly connected with the top of the inner side of the power distribution box, a locking nut is clamped at the bottom end of the buffering outer barrel, a locking screw is connected to the surface of the locking nut in a threaded mode and is further located in a passing connecting hole formed in the bottom of the circuit board, and the intelligent control system is arranged at the top of the circuit board.

Further, the first heavy buffer assembly comprises a sliding connecting groove, the sliding connecting groove is formed in the outer arc surface of the buffer inner shaft, a sliding connecting seat is connected in the sliding connecting groove in a sliding mode, the end portion of the sliding connecting seat is fixedly connected with the inner end face of the sliding connecting groove through a buffer spring, and one face, deviating from the buffer inner shaft, of the sliding connecting seat is fixedly connected with the inner arc surface of the buffer outer barrel.

Through adopting above-mentioned technical scheme, the buffering urceolus can take place to slide in the surface of buffering interior axle, utilizes buffer spring's elasticity, and then can play certain buffering effect, and buffer spring adopts the spring that elasticity coefficient is lower.

Furthermore, the second double-buffering assembly comprises an upper permanent magnet seat, the top of the upper permanent magnet seat is fixedly connected with the bottom end of the buffering inner shaft, a lower electromagnetic seat is further arranged at the position, corresponding to the upper permanent magnet seat, of the bottom of the inner side of the buffering outer cylinder, a lifting connecting shaft is fixedly connected to the bottom of the upper permanent magnet seat, a winding coil is wound on the surface of the lifting connecting shaft, a first permanent magnet ring and a second permanent magnet ring are connected to the position, corresponding to the winding coil, of the inner side wall of the buffering outer cylinder in an embedded mode, and the magnetic poles of opposite faces of the second permanent magnet ring and the first permanent magnet ring are opposite.

By adopting the technical scheme, the circuit board is influenced by vibration, the first permanent magnet ring and the second permanent magnet ring can be driven to circularly reciprocate on the surface of the winding coil in the process of sliding on the surface of the buffer inner shaft through the buffer outer cylinder, and the first permanent magnet ring and the second permanent magnet ring can cut magnetic induction lines between the first permanent magnet ring and the second permanent magnet ring when moving relative to the winding coil and generate current.

Further, intelligence control system includes the automatic switch module, the input of automatic switch module and switching power supply module's output electric connection, the output electric connection of power cord and commercial power supply module is passed through to the input of switching power supply module, the output of automatic switch module respectively with the input electric connection of current detection module and lithium electric tool main part, the output of current detection module respectively with the input electric connection of relay module and data control processing module to the input of relay module still with the input electric connection of data control processing module, the output of relay module and the input electric connection of lithium cell group power module, the output of lithium cell group power module and the input electric connection of automatic switch module.

Through adopting above-mentioned technical scheme, be provided with automatic switch module in the switching power supply module, switching power supply module passes through the power cord and links to each other with commercial power supply module, switching power supply module turns into the low piezoelectricity of direct current with exchanging 220 and supplies power for lithium electric tool main part, when the use commercial power supply module of not being convenient for, automatic switch module switches over to the power module of lithium cell group and supplies power, current detection module adopts hall current sensor to come real-time detection charging current, feedback information is handled for data control processing module.

To sum up, the utility model discloses following beneficial effect has:

1. in the scheme, a certain buffering effect can be achieved under the mutual matching of the interlocking assembly, the first heavy buffering assembly, the second heavy buffering assembly, the intelligent control system and other components, and the buffering spring adopts a spring with a lower elastic coefficient, so that a good buffering effect can be achieved within a certain range under the condition of low-frequency vibration, and a good protection effect can be still achieved on the circuit board under the condition of high-frequency vibration, so that the stability of the circuit board after the circuit board is connected with a power line contact can be effectively ensured, the phenomenon of drum charging of the lithium battery pack power supply module can be effectively reduced, the service life of the lithium battery pack power supply module is prolonged, and fire accidents caused by over-charging of the lithium battery pack power supply module are reduced;

2. through the arranged interlocking component and the first heavy buffer component, the buffer outer cylinder can slide on the surface of the buffer inner shaft, and a certain buffer effect can be achieved by utilizing the elasticity of the buffer spring;

3. through the second buffering component, the magnetic repulsive force between the upper permanent magnet seat and the lower electromagnetic seat can be enhanced, so that a good protection effect can be still achieved on the circuit board under the condition of high-frequency vibration, and the stability of the circuit board after being connected with a power line contact can be effectively guaranteed;

4. through the automatic transfer switch module that sets up, the switching power supply module, commercial power supply module, the current detection module, data control processing module, relay module and lithium cell group power module, be provided with the automatic transfer switch module in the switching power supply module, after detecting that lithium cell group power module is full of, data control processing module drive relay outage, relay module has one and normally opens and a long closed electric shock dress volume, there are two LED pilot lamps, it is not circular telegram that red bright is, green bright is the circular telegram, through the real-time feedback to current detection module information, judge whether overcharge, reduce the phenomenon that lithium cell group power module filled the drum effectively, the life of extension lithium cell group power module, the fire incident that causes because lithium cell group power module overcharges has been reduced. When the external power supply is detected to be connected, the automatic change-over switch module is directly switched to supply power to the external power supply, and the power supply module of the lithium battery pack is automatically powered off.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an exploded view of the middle linkage assembly and the second rebuffering assembly of the present invention;

FIG. 3 is an enlarged schematic structural view of the position A of the present invention;

fig. 4 is a schematic perspective view of the middle locking nut of the present invention;

fig. 5 is a block diagram of the intelligent control system of the present invention.

In the figure:

1. a lithium electric tool body; 2. a base component; 201. a distribution box; 202. a box cover; 203. a power line; 204. a plug-in connector; 3. an interlock assembly; 301. buffering the inner shaft; 302. a buffer outer cylinder; 303. locking the nut; 304. a circuit board; 305. passing through the connecting hole; 306. locking the screw; 4. a first rebuffering assembly; 401. a sliding connection seat; 402. sliding connecting grooves; 403. a buffer spring; 5. a second rebuffering assembly; 501. an upper permanent magnet base; 502. a lower electromagnetic base; 503. a lifting connecting shaft; 504. a winding coil; 505. a first permanent magnet ring; 506. a second permanent magnet ring; 6. an automatic transfer switch module; 7. a switching power supply module; 8. a mains supply module; 9. a current detection module; 10. a data control processing module; 11. a relay module; 12. a lithium battery pack power supply module; 13. an intelligent control system.

Detailed Description

Example (b):

the present invention will be described in further detail with reference to fig. 1 to 5.

The utility model provides a technical scheme: the utility model provides a lithium electricity instrument with stabilize power supply structure, includes lithium electricity instrument main part 1, the bottom fixed connection of lithium electricity instrument main part 1 has basic component 2, and the chain subassembly 3 of 2 inboard top fixedly connected with of basic component is provided with intelligent control system 13 on the chain subassembly 3, is provided with first heavy buffering subassembly 4 and second heavy buffering subassembly 5 on the chain subassembly 3 respectively.

In this embodiment: under the condition of high-frequency vibration, still can play good protection effect to circuit board 304, can effectively guarantee the stability behind circuit board 304 and the power cord 203 contact connection, can also reduce the phenomenon that lithium cell group power module 12 fills the drum effectively, prolong the life of lithium cell group power module 12, reduced because the fire incident that lithium cell group power module 12 overcharge and cause.

As shown in fig. 1, the base assembly 2 includes a distribution box 201, a top of the distribution box 201 is fixedly connected to a bottom of the lithium electric tool body 1, a box cover 202 is disposed in a port formed in the bottom of the distribution box 201, a power line 203 is clamped on a side end surface of the distribution box 201, and a plug 204 is electrically connected to one end of the power line 203 far away from the distribution box 201.

In this embodiment: the locking screw 306 is inserted into a through connection hole 305 formed in the circuit board 304, and then the locking screw 306 and the locking nut 303 are screwed together.

As shown in fig. 2, the interlocking assembly 3 includes an inner buffer shaft 301 and an outer buffer shaft 302, the top end of the inner buffer shaft 301 is fixedly connected with the top of the inner side of the distribution box 201, a locking nut 303 is clamped at the bottom end of the outer buffer shaft 302, a locking screw 306 is screwed on the surface of the locking nut 303, the locking screw 306 is further located in a through connection hole 305 formed in the bottom of the circuit board 304, and the intelligent control system 13 is disposed on the top of the circuit board 304.

In this embodiment: the locking screw 306 is connected into the through connecting hole 305 formed in the circuit board 304, and then the circuit board 304 can be stably and fixedly mounted at the bottom of the buffer outer barrel 302 by utilizing the threaded connection relationship between the locking screw 306 and the locking nut 303, so that the lithium electric tool body 1 is controlled to work, and the lithium electric tool body 1 can generate strong vibration in the operation process.

As shown in fig. 2, the first heavy buffer component 4 includes a sliding connection groove 402, the sliding connection groove 402 is opened on the outer arc surface of the buffer inner shaft 301, a sliding connection seat 401 is slidably connected in the sliding connection groove 402, an end of the sliding connection seat 401 is fixedly connected with an end surface of the inner side of the sliding connection groove 402 through a buffer spring 403, and a surface of the sliding connection seat 401 departing from the buffer inner shaft 301 is fixedly connected with the inner arc surface of the buffer outer cylinder 302.

In this embodiment: the damper outer cylinder 302 can slide on the surface of the damper inner shaft 301, and can exert a certain damping effect by the elasticity of the damper spring 403, and the damper spring 403 is a spring having a low elastic coefficient.

As shown in fig. 2, the second double buffer assembly 5 includes an upper permanent magnet seat 501, the top of the upper permanent magnet seat 501 is fixedly connected to the bottom end of the buffer inner shaft 301, a lower electromagnetic seat 502 is further disposed at a position corresponding to the upper permanent magnet seat 501 at the bottom of the inner side of the buffer outer cylinder 302, a lifting connection shaft 503 is fixedly connected to the bottom of the upper permanent magnet seat 501, a winding coil 504 is wound on the surface of the lifting connection shaft 503, a first permanent magnet ring 505 and a second permanent magnet ring 506 are respectively connected to positions corresponding to the winding coil 504 on the inner side wall of the buffer outer cylinder 302 in an embedded manner, and the magnetic poles of the opposite surfaces of the second permanent magnet ring 506 and the first permanent magnet ring 505 are opposite.

In this embodiment: when the first permanent magnet ring 505 and the second permanent magnet ring 506 move relative to the winding coil 504, magnetic induction lines existing between the first permanent magnet ring 505 and the second permanent magnet ring 506 are cut, a current is generated, the higher the vibration frequency is, the higher the current intensity is generated in unit time is, and further the magnetic mutual repulsion between the upper permanent magnet seat 501 and the lower permanent magnet seat 502 can be enhanced, so that a good protection effect can be still achieved on the circuit board 304 under the condition of high-frequency vibration.

As shown in fig. 5, the intelligent control system 13 includes an automatic transfer switch module 6, an input terminal of the automatic transfer switch module 6 is electrically connected to an output terminal of a switch power module 7, an input terminal of the switch power module 7 is electrically connected to an output terminal of a commercial power supply module 8 through a power line 203, an output terminal of the automatic transfer switch module 6 is electrically connected to an input terminal of a current detection module 9 and an input terminal of a lithium electric tool main body 1, an output terminal of the current detection module 9 is electrically connected to an input terminal of a relay module 11 and an input terminal of a data control processing module 10, and the input of relay module 11 still with data control processing module 10's input electric connection, relay module 11's output and lithium cell group power module 12's input electric connection, lithium cell group power module 12's output and automatic transfer switch module 6's input electric connection.

In this embodiment: relay module 11 has one and normally opens and a long closed electric shock dress volume, has two LED pilot lamps, and red bright for not circular telegram, and green bright is the circular telegram, through the real-time feedback to current detection module 9 information, judges whether cross to fill, reduces lithium cell group power module 12 effectively and fills the phenomenon of bulging, prolongs lithium cell group power module 12's life, has reduced because lithium cell group power module 12 overcharge and the fire incident that causes.

The working principle is as follows: the locking screw 306 is inserted into the through connection hole 305 formed on the circuit board 304, then, the circuit board 304 can be stably and fixedly installed at the bottom of the buffer outer cylinder 302 by utilizing the threaded connection relationship between the locking screw 306 and the locking nut 303, the operation of the lithium electric tool body 1 is controlled, the lithium electric tool body 1 can generate stronger vibration in the operation process, because the buffer outer cylinder 302 can slide on the surface of the buffer inner shaft 301, a certain buffer effect can be achieved by utilizing the elasticity of the buffer spring 403, the buffer spring 403 adopts a spring with a lower elastic coefficient, so that a good buffer effect can be achieved in a certain range under the condition of low-frequency vibration, the circuit board 304 is influenced by the vibration, and the first permanent magnetic ring 505 and the second permanent magnetic ring 506 can be driven to circularly reciprocate on the surface of the winding coil 504 in the process of sliding the buffer inner shaft 301 through the buffer outer cylinder 302, because the first permanent magnet ring 505 and the second permanent magnet ring 506 will cut the magnetic induction line existing between the first permanent magnet ring 505 and the second permanent magnet ring 506 when moving relative to the winding coil 504, and generate current, and the higher the vibration frequency, the higher the current intensity generated in a unit time, and further the magnetic mutual repulsion between the upper permanent magnet base 501 and the lower electromagnetic base 502 can be enhanced, so that under the condition of high-frequency vibration, the circuit board 304 can still be well protected, and the stability after the circuit board 304 is connected with the power line 203 by contact can be effectively ensured, the automatic switch module 6 is arranged in the switch power module 7, the switch power module 7 is connected with the mains supply module 8 through the power line 203, the switch power module 7 converts the alternating current 220 into the direct current low voltage to supply power to the piezoelectric lithium power tool main body 1, when the mains supply module 8 is not convenient to use, automatic change over switch module 6 switches over to lithium cell group power module 12 and supplies power, current detection module 9 adopts hall current sensor to come real-time detection charging current, feedback information handles for data control processing module 10, after detecting that lithium cell group power module 12 is full of, data control processing module 10 drive relay outage, relay module 11 has one and normally opens and a long closed electric shock charge, there are two LED pilot lamps, red bright for not the circular telegram, green bright for the circular telegram, through the real-time feedback to current detection module 9 information, judge whether overcharge, reduce the phenomenon that lithium cell group power module 12 filled the drum effectively, the life of extension group lithium cell group power module 12, the fire incident that causes because lithium cell group power module 12 overcharges has been reduced.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a lithium electricity instrument with stabilize power supply structure, includes lithium electricity instrument main part (1), its characterized in that, the bottom fixed connection of lithium electricity instrument main part (1) has basic unit (2), the chain subassembly (3) of the inboard top fixedly connected with of basic unit (2), be provided with intelligent control system (13) on chain subassembly (3), be provided with first heavy buffering subassembly (4) and second heavy buffering subassembly (5) on chain subassembly (3) respectively.

2. The lithium electric tool with the stable power supply structure is characterized in that the base assembly (2) comprises a power distribution box (201), the top of the power distribution box (201) is fixedly connected with the bottom of the lithium electric tool body (1), a box cover (202) is arranged in a port arranged at the bottom of the power distribution box (201), a power line (203) is clamped on the side end face of the power distribution box (201), and one end, far away from the power distribution box (201), of the power line (203) is electrically connected with a plug-in connector (204).

3. The lithium electric tool with the stable power supply structure is characterized in that the interlocking assembly (3) comprises an inner buffer shaft (301) and an outer buffer shaft (302), the top end of the inner buffer shaft (301) is fixedly connected with the top of the inner side of the power distribution box (201), the bottom end of the outer buffer shaft (302) is clamped with a locking nut (303), a locking screw (306) is connected to the surface of the locking nut (303) in a threaded mode, the locking screw (306) is further located in a penetrating connecting hole (305) formed in the bottom of the circuit board (304), and the intelligent control system (13) is arranged on the top of the circuit board (304).

4. The lithium electric tool with the stable power supply structure is characterized in that the first heavy buffer assembly (4) comprises a sliding connecting groove (402), the sliding connecting groove (402) is arranged on the outer arc surface of the buffer inner shaft (301), a sliding connecting seat (401) is connected in the sliding connecting groove (402) in a sliding manner, the end of the sliding connecting seat (401) is fixedly connected with the end surface of the inner side of the sliding connecting groove (402) through a buffer spring (403), and the surface, away from the buffer inner shaft (301), of the sliding connecting seat (401) is fixedly connected with the inner arc surface of the buffer outer shaft (302).

5. The lithium electric tool with a stable power supply structure according to claim 4, the second re-buffering assembly (5) comprises an upper layer permanent magnet seat (501), the top of the upper layer permanent magnet seat (501) is fixedly connected with the bottom end of the buffering inner shaft (301), a lower electromagnetic seat (502) is arranged at the position of the bottom of the inner side of the buffer outer cylinder (302) corresponding to the upper permanent magnet seat (501), the bottom of the upper layer permanent magnet seat (501) is fixedly connected with a lifting connecting shaft (503), the surface of the lifting connecting shaft (503) is wound and connected with a winding coil (504), and the inner side wall of the buffer outer cylinder (302) is respectively connected with a first permanent magnet ring (505) and a second permanent magnet ring (506) in an embedded manner at the positions corresponding to the winding coil (504), the opposite magnetic poles of the second permanent magnet ring (506) and the first permanent magnet ring (505) are opposite.

6. The lithium electric tool with stable power supply structure as claimed in claim 5, wherein the intelligent control system (13) comprises an automatic switch module (6), the input of the automatic switch module (6) is electrically connected with the output of the switch power module (7), the input of the switch power module (7) is electrically connected with the output of the commercial power module (8) through a power line (203), the output of the automatic switch module (6) is electrically connected with the input of the current detection module (9) and the lithium electric tool main body (1), the output of the current detection module (9) is electrically connected with the input of the relay module (11) and the data control processing module (10), and the input of the relay module (11) is also electrically connected with the input of the data control processing module (10), the output end of the relay module (11) is electrically connected with the input end of the lithium battery pack power supply module (12), and the output end of the lithium battery pack power supply module (12) is electrically connected with the input end of the automatic change-over switch module (6).