CN210926222U - Lithium battery of electric tool - Google Patents
Lithium battery of electric tool Download PDFInfo
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- CN210926222U CN210926222U CN201921718795.4U CN201921718795U CN210926222U CN 210926222 U CN210926222 U CN 210926222U CN 201921718795 U CN201921718795 U CN 201921718795U CN 210926222 U CN210926222 U CN 210926222U
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- lithium battery
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- upper cover
- contact terminal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a lithium battery for electric tools, which comprises a lower cover, an upper cover which is arranged on the lower cover and is matched with the lower cover, an accommodating space which is formed by the upper cover and the lower cover, a lithium battery pack which is arranged in the accommodating space and is arranged on the lower cover, a control panel module which is arranged above the lithium battery pack, charging and discharging contact terminals which are arranged above the control panel module and are positioned at one opposite side of the charging and discharging contact terminals, terminal pressing pieces which are arranged above the charging and discharging contact terminals and radiating fins which are arranged above the charging and discharging contact terminals, wherein the upper surface of the first side of the upper cover is provided with a battery charging and discharging port, the first side of the upper cover corresponds to one opposite side of the control panel module, the battery charging and discharging port is provided with a gap which is communicated with the accommodating space, and the charging and discharging terminals are exposed, the lithium battery of the electric tool has the advantages of simple structure and reasonable design, can realize quick heat dissipation, has high heat dissipation efficiency, and is safer to charge and use.
Description
Technical Field
The utility model relates to a battery charging technology field specifically is an electric tool lithium cell.
Background
With the continuous development of new energy science and technology, lithium ion batteries are widely applied to various products at present, and the lithium ion batteries work by moving lithium ions between a positive electrode and a negative electrode. In the process of charging and discharging, lithium ions are inserted and de-inserted between two electrodes in a reciprocating manner, and the lithium ion battery is a representative of modern high-performance batteries, is energy-saving and environment-friendly, and is widely applied.
The electric tool powered by the battery pack is usually short in service time, so that the battery pack needs to be charged frequently, and the existing battery pack is not compact in structural arrangement, so that the whole volume of the battery pack is large, and the battery pack is difficult to apply to the electric tool conveniently; in addition, the battery package generates heat easily in the use, and overheated environment can influence the life of lithium cell, accelerates the ageing of battery, and does not have the louvre on the current battery package, and the radiating effect is poor, has seriously influenced the life of battery and the live time after once charging, and is serious even, can have the potential safety hazard in the use.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists on the prior art, the utility model provides a simple structure, reasonable in design can realize quick heat dissipation and radiating efficiency height and charge and use all safer electric tool lithium battery charger.
In order to achieve the above object, the present invention can be realized by the following technical solutions: a lithium battery for an electric tool comprises a lower cover, an upper cover, a containing space, a lithium battery pack, a control panel module, a charging and discharging contact terminal, a terminal pressing piece and a radiating fin, wherein the upper cover is installed on the lower cover and matched with the lower cover, the containing space is formed by enclosing the upper cover and the lower cover, the lithium battery pack is arranged in the containing space and installed on the lower cover, the control panel module is installed above the lithium battery pack, the charging and discharging contact terminal is arranged above the control panel module and is positioned on one side opposite to the charging and discharging contact terminal, the terminal pressing piece and the radiating fin are arranged above the charging and discharging contact terminal, the upper surface of the first side of the upper cover is provided with a battery charging and discharging port, the first side of the upper cover corresponds to one side opposite to the control panel module, and the battery charging and discharging port is provided with a gap communicated with the containing space, the charge and discharge contact terminal is exposed in the gap.
Further: the upper cover is provided with a second side opposite to the first side, and the second side is provided with an electric quantity display window.
Further: the power display window with the top surface of upper cover is the slope setting just the power display window coats and is stamped PET power display sticker, the top surface of upper cover is being close to second side department is equipped with pastes the portion, it has PET top sticker to paste the portion coats.
Further: the lower cover is provided with a side face for connecting the first side and the second side, and the middle part of the side face is provided with an inwards concave groove.
Further: the inner wall surface of the groove at the top is provided with a protrusion extending downwards, and the outer surface of the protrusion is obliquely arranged outwards from top to bottom.
Further: the lower cover is arranged in a shell, a first accommodating cavity is formed in the middle of the lower cover, a second accommodating cavity is formed in the middle of the upper cover, and the first accommodating cavity and the second accommodating cavity form the accommodating space.
Further: the lithium battery pack is installed in the first accommodating cavity, and the control panel module, the charge-discharge contact terminal, the terminal pressing piece and the radiating fin are all located in the second accommodating cavity.
Further: the lithium battery pack comprises a battery fixing support arranged on the lower cover and a plurality of lithium batteries arranged in the battery fixing support.
Further: the number of the plurality of lithium batteries is 14 and the total capacity of the plurality of lithium batteries is 2 AH.
Further: the number of the plurality of lithium batteries is 28 and the total capacity of the plurality of lithium batteries is 4 AH.
Compared with the prior art, the utility model discloses an electric tool lithium cell has following advantage at least: the lithium battery pack of the lithium battery of the electric tool is arranged on the lower cover, and the control panel module, the charging and discharging contact terminals, the terminal pressing piece and the radiating fins are directly or indirectly arranged on the lithium battery pack, so that the accommodating space formed between the lower cover and the upper cover can be fully utilized, the structural design is more compact, the structure is simple and reasonable, the space is saved, the lithium battery pack can quickly radiate heat, and the radiating efficiency is high; the battery charge and discharge port is established in the first side of upper cover and is located same one side with charge and discharge contact terminal, the battery charge and discharge port have with the gap of accommodating space intercommunication, charge and discharge contact terminal exposes in the gap, can reduce charge and discharge contact terminal and external contact like this, avoid taking place unnecessary danger or damage charge and discharge contact terminal, the inside heat of electric tool lithium cell also can be through the gap effluvium simultaneously for charge and use all safer.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
fig. 1 is a schematic view of a lithium battery for an electric tool according to a first embodiment of the present invention;
fig. 2 is an exploded view of a lithium battery for an electric tool according to a first embodiment of the present invention;
fig. 3 is a front view of a lithium battery for an electric tool according to a first embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
fig. 5 is a schematic view of a lithium battery for an electric tool according to a second embodiment of the present invention;
fig. 6 is an exploded view of a lithium battery for an electric power tool according to a first embodiment of the present invention;
fig. 7 is a front view of a lithium battery for an electric tool according to a second embodiment of the present invention;
fig. 8 is a sectional view taken along a-a in fig. 7.
Description of reference numerals: 1. a lower cover; 10. a first receiving cavity; 11. a side surface; 12. a groove; 13. a protrusion; 2. an upper cover; 20. a second receiving cavity; 21. a battery charge and discharge port; 22. an electric quantity display window; 23. a sticking part; 24. pasting a piece of PET top paster; 25. a gap; 3. a control panel module; 4. a heat sink; 5. a charge-discharge contact terminal; 6. a terminal pressing member; 7. a lithium battery pack; 8. PET electric quantity display paster; 71. a battery fixing bracket; 72. a lithium battery; 1', a lower cover; 10', a first housing chamber; 11', side faces; 12', a groove; 13', a bulge; 2', an upper cover; 20' and a second accommodating cavity; 21', battery charge and discharge ports; 22', a power display window; 23', a sticking part; 24', PET top decal; 25', a gap; 3', a control panel module; 4', a heat radiating fin; 5', charge and discharge contact terminals; 6', a terminal pressing member; 7', a lithium battery pack; 71', a battery fixing bracket; 72', a lithium battery; 8', PET electric quantity display paster.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 to 4, which illustrate a lithium battery for an electric tool of the present invention, the lithium battery for an electric tool comprises a lower cover 1, an upper cover 2 mounted on the lower cover 1 and engaged with the lower cover 1, a receiving space defined by the upper cover 2 and the lower cover 1, a lithium battery pack 7 disposed in the receiving space and mounted on the lower cover 1, a control board module 3 mounted above the lithium battery pack 7, a charge/discharge contact terminal 5 disposed above the control board module 3 and on an opposite side thereof, a terminal pressing member 6 disposed above the charge/discharge contact terminal 5, and a heat sink 4 disposed above the charge/discharge contact terminal 5, wherein the control board module 3, the charge/discharge contact terminal 5, the terminal pressing member 6, and the heat sink 4 are all disposed in the receiving space, a battery charge/discharge port 21 is disposed on an upper surface of a first side of the upper cover 2, the first side of the upper cover 2 corresponds to the opposite side of the control board module 3, the battery charge/discharge port 21 has, the charge and discharge contact terminal 5 is exposed in the slit 25.
The lithium battery pack of the electric tool lithium battery is arranged on the lower cover 1, and the control panel module 3, the charging and discharging contact terminal 5, the terminal pressing piece 6 and the radiating fin 4 are directly or indirectly arranged on the lithium battery pack 7, so that the accommodating space formed between the lower cover 1 and the upper cover 2 can be fully utilized, the structural design is more compact, the structure is simple and reasonable, the space is saved, the lithium battery pack 7 can quickly dissipate heat, and the heat dissipation efficiency is high; battery charge and discharge port 21 establishes in the first side of upper cover 2 and lies in same one side with charge and discharge contact terminal 5, battery charge and discharge port 21 has the gap 25 with accommodating space intercommunication, charge and discharge contact terminal 5 exposes in gap 25, can reduce charge and discharge contact terminal 5 and external contact like this, avoid taking place unnecessary danger or damaging charge and discharge contact terminal 5, the inside heat of electric tool lithium cell also can dispel through gap 25 simultaneously, make charge and use all safer.
As shown in fig. 1 to 4, the upper cover 2 has a second side opposite to the first side, and the second side is provided with a power display window 22. The top surface of electric quantity display window 22 and upper cover 2 is the slope setting and electric quantity display window 22 coats and is stamped PET electric quantity display sticker 8, and the top surface of upper cover 2 is being equipped with pasting portion 23 near second side department, and pasting portion 23 coats and is stamped PET top sticker 24. The top surface of the upper cover 2 is approximately plane, the pasting part 23 is a groove sinking downwards from the top surface, the PET top sticker 24 is pasted in the groove, and the pasting part 23 can be used for pasting nameplates or logos and the like.
The lower cover 1 has a side surface 11 connecting the first side and the second side, and a concave groove 12 is formed in the middle of the side surface 11. The inner wall surface of the groove 12 at the top is provided with a protrusion 13 extending downwards, and the outer surface of the protrusion 13 is inclined outwards from top to bottom. The projection of the groove 12 on the side surface is in a trapezoid shape, and the length of the lower bottom edge of the trapezoid is larger than that of the upper top edge.
The joint of the upper cover 2 and the lower cover 1 is fixedly connected through screws. The lower cover 1 is arranged in a shell, a first accommodating cavity 10 is arranged in the middle of the lower cover, the upper cover 2 is arranged in a shell, a second accommodating cavity 20 is arranged in the middle of the upper cover, and the first accommodating cavity 10 and the second accommodating cavity 20 form an accommodating space. The lithium battery pack 7 is arranged in the first accommodating cavity 10, and the control panel module 3, the charging and discharging contact terminal 5, the terminal pressing piece 6 and the radiating fin 4 are all positioned in the second accommodating cavity 20. The charge and discharge contact terminal 5 is exposed in the gap 25 and the charge and discharge contact terminal 5 and the gap 25 are located at the same height in the horizontal direction, so that the plug-in unit can be conveniently contacted and matched with the charge and discharge contact terminal 5. Gap 25 and outside air intercommunication can transmit the heat that the electric tool lithium cell produced to the electric tool lithium cell outside through gap 25, and then realize radiating purpose, have improved the radiating efficiency.
The lithium battery pack 7 comprises a battery fixing bracket 71 arranged on the lower cover 2 and a plurality of lithium batteries 72 arranged in the battery fixing bracket 71. The number of the plurality of lithium batteries 72 is 14, and the total capacity of the plurality of lithium batteries 72 is 2AH, preferably, the lithium battery 72 is 18650.
As shown in fig. 5 to 8, for a second embodiment of the present invention, a lithium battery for an electric tool includes a lower cover 1 ', an upper cover 2' installed on the lower cover 1 'and cooperating with the lower cover 1', an accommodating space defined by the upper cover 2 'and the lower cover 1', a lithium battery pack 7 'installed in the accommodating space and installed on the lower cover 1', a control board module 3 'installed above the lithium battery pack 7', a charge/discharge contact terminal 5 'installed above the control board module 3' and located on an opposite side thereof, a terminal pressing member 6 'installed above the charge/discharge contact terminal 5', and a heat sink 4 'installed above the charge/discharge contact terminal 5', the control board module 3 ', the charge/discharge contact terminal 5', the terminal pressing member 6 'and the heat sink 4' are all located in the accommodating space, a battery charge/discharge port 21 'is provided on an upper surface of a first side of the upper cover 2', the first side of the upper cover 2 'corresponds to the opposite side of the control board module 3', the battery charge and discharge port 21 'has a slit 25' communicating with the receiving space, and the charge and discharge contact terminal 5 'is exposed in the slit 25'.
The lithium battery pack of the electric tool lithium battery is arranged on the lower cover 1 ', and the control panel module 3 ', the charging and discharging contact terminal 5 ', the terminal pressing piece 6 ' and the radiating fin 4 ' are directly or indirectly arranged on the lithium battery pack 7 ', so that the accommodating space formed between the lower cover 1 ' and the upper cover 2 ' can be fully utilized, the structural design is more compact, the structure is simple and reasonable, the space is saved, the lithium battery pack 7 ' can quickly dissipate heat, and the heat dissipation efficiency is high; the battery charge and discharge port 21 'is arranged on the first side of the upper cover 2' and is positioned on the same side with the charge and discharge contact terminal 5 ', the battery charge and discharge port 21' is provided with a gap 25 'communicated with the accommodating space, and the charge and discharge contact terminal 5' is exposed in the gap 25 ', so that the contact between the charge and discharge contact terminal 5' and the outside can be reduced, unnecessary danger or damage to the charge and discharge contact terminal 5 'is avoided, meanwhile, heat inside a lithium battery of the electric tool can be dissipated through the gap 25', and the charging and the use are safer.
As shown in fig. 5 to 8, the upper cover 2 'has a second side opposite to the first side, and the second side is provided with a power display window 22'. The power display window 22 'and the top surface of the upper cover 2' are obliquely arranged, the power display window 22 'is covered with a PET power display sticker 8', the top surface of the upper cover 2 'is provided with a sticking portion 23' close to the second side, and the sticking portion 23 'is covered with a PET top sticker 24'. The top surface of the upper cover 2 'is approximately plane, the pasting part 23' is a groove sinking downwards from the top surface, the PET top sticker 24 'is pasted in the groove, and the pasting part 23' can be used for pasting nameplates, logos and the like.
The lower cover 1 'has a side surface 11' connecting the first side and the second side, and the middle of the side surface 11 'has an inwardly depressed groove 12'. The inner wall surface of the groove 12 ' at the top is provided with a protrusion 13 ' extending downwards, and the outer surface of the protrusion 13 ' is inclined outwards from top to bottom. The projection of the groove 12' on the side surface is in a trapezoid shape, and the length of the lower bottom edge of the trapezoid is larger than that of the upper top edge.
The joint of the upper cover 2 'and the lower cover 1' is fixedly connected through screws. The lower cover 1 'is arranged in a shell shape, a first accommodating cavity 10' is arranged in the middle of the lower cover, the upper cover 2 'is arranged in a shell shape, a second accommodating cavity 20' is arranged in the middle of the upper cover, and an accommodating space is formed by the first accommodating cavity 10 'and the second accommodating cavity 20'. The lithium battery pack 7 ' is installed in the first accommodating cavity 10 ', and the control panel module 3 ', the charging and discharging contact terminal 5 ', the terminal pressing piece 6 ' and the radiating fin 4 ' are all located in the second accommodating cavity 20 '. The charge and discharge contact terminal 5 ' is exposed in the gap 25 ' and the charge and discharge contact terminal 5 ' and the gap 25 ' are positioned at the same height in the horizontal direction, so that the plug-in unit can be conveniently contacted and matched with the charge and discharge contact terminal 5 '. The gap 25 'is communicated with the outside air, so that heat generated by the electric tool lithium battery can be transmitted to the outside of the electric tool lithium battery through the gap 25', the purpose of heat dissipation is achieved, and the heat dissipation efficiency is improved.
The lithium battery pack 7 ' comprises a battery fixing bracket 71 ' mounted on the lower cover 2 ' and a plurality of lithium batteries 72 ' mounted in the battery fixing bracket 71 '. The number of the plurality of lithium batteries 72 ' is 28, and the total capacity of the plurality of lithium batteries 72 ' is 4AH, preferably, the lithium battery ' model is 18650 lithium battery.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An electric tool lithium battery, its characterized in that: comprises a lower cover, an upper cover which is arranged on the lower cover and matched with the lower cover, an accommodating space which is formed by enclosing the upper cover and the lower cover, a lithium battery pack which is arranged in the accommodating space and arranged on the lower cover, a control panel module which is arranged above the lithium battery pack, a charging and discharging contact terminal which is arranged above the control panel module and is positioned at one side opposite to the charging and discharging contact terminal, a terminal pressing piece which is arranged above the charging and discharging contact terminal and a radiating fin which is arranged above the charging and discharging contact terminal, wherein the control panel module, the charging and discharging contact terminal, the terminal pressing piece and the radiating fin are all positioned in the accommodating space, a battery charging and discharging port is arranged on the upper surface of the first side of the upper cover, the first side of the upper cover corresponds to one side opposite to the control panel module, and the battery charging and discharging port has a gap communicated with, the charge and discharge contact terminal is exposed in the gap.
2. A lithium battery for power tools as claimed in claim 1, characterized in that: the upper cover is provided with a second side opposite to the first side, and the second side is provided with an electric quantity display window.
3. A lithium battery for power tools as claimed in claim 2, characterized in that: the power display window with the top surface of upper cover is the slope setting just the power display window coats and is stamped PET power display sticker, the top surface of upper cover is being close to second side department is equipped with pastes the portion, it has PET top sticker to paste the portion coats.
4. A lithium battery for power tools as claimed in claim 3, characterized in that: the lower cover is provided with a side face for connecting the first side and the second side, and the middle part of the side face is provided with an inwards concave groove.
5. A lithium battery for power tools as claimed in claim 4, wherein: the inner wall surface of the groove at the top is provided with a protrusion extending downwards, and the outer surface of the protrusion is obliquely arranged outwards from top to bottom.
6. A lithium battery for power tools as claimed in claim 1, characterized in that: the lower cover is arranged in a shell, a first accommodating cavity is formed in the middle of the lower cover, a second accommodating cavity is formed in the middle of the upper cover, and the first accommodating cavity and the second accommodating cavity form the accommodating space.
7. A lithium battery for power tools as claimed in claim 6, wherein: the lithium battery pack is installed in the first accommodating cavity, and the control panel module, the charge-discharge contact terminal, the terminal pressing piece and the radiating fin are all located in the second accommodating cavity.
8. A lithium battery for power tools as claimed in claim 1, characterized in that: the lithium battery pack comprises a battery fixing support arranged on the lower cover and a plurality of lithium batteries arranged in the battery fixing support.
9. A lithium battery for power tools as claimed in claim 8, wherein: the number of the plurality of lithium batteries is 14 and the total capacity of the plurality of lithium batteries is 2 AH.
10. A lithium battery for power tools as claimed in claim 8, wherein: the number of the plurality of lithium batteries is 28 and the total capacity of the plurality of lithium batteries is 4 AH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921718795.4U CN210926222U (en) | 2019-10-15 | 2019-10-15 | Lithium battery of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921718795.4U CN210926222U (en) | 2019-10-15 | 2019-10-15 | Lithium battery of electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210926222U true CN210926222U (en) | 2020-07-03 |
Family
ID=71368097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921718795.4U Active CN210926222U (en) | 2019-10-15 | 2019-10-15 | Lithium battery of electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210926222U (en) |
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2019
- 2019-10-15 CN CN201921718795.4U patent/CN210926222U/en active Active
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