CN220732390U - Battery discharge protection device - Google Patents
Battery discharge protection device Download PDFInfo
- Publication number
- CN220732390U CN220732390U CN202322262545.7U CN202322262545U CN220732390U CN 220732390 U CN220732390 U CN 220732390U CN 202322262545 U CN202322262545 U CN 202322262545U CN 220732390 U CN220732390 U CN 220732390U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- circuit board
- discharge protection
- radiating
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 69
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model relates to the technical field of battery protection, in particular to a battery discharge protection device, which comprises a bottom plate; the circuit board is arranged in the outer shell, and a first wiring terminal and a second wiring terminal are arranged on the circuit board; still include heat radiation structure, heat radiation structure includes: the radiating fins are arranged at the bottom of the circuit board; the radiating fan is arranged in the radiating cavity and used for cooling the radiating fins in an air-cooling way; the ventilation opening is arranged at the top of the heat dissipation cavity and is used for outputting wind generated when the heat dissipation fan rotates. According to the utility model, through the arrangement of the ventilation opening and the ventilation pipeline, when the cooling fan rotates, the top and the bottom on the circuit board are conveniently and synchronously cooled, and the double refrigeration is carried out on the circuit board, so that the problems that the existing charge-discharge protection board is poor in heat dissipation effect, heat accumulation is generated in the circuit board, and the service life of the battery protection board is influenced for a long time are effectively solved.
Description
Technical Field
The utility model relates to the technical field of battery protection, in particular to a battery discharge protection device.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses nonaqueous electrolyte solution, so that the battery is also called a lithium metal battery, and unlike other batteries, the lithium battery has the characteristics of high charging density, long service life, high unit cost and the like, and the lithium battery is required to be provided with a charging and discharging protection plate when in use because the material of the lithium battery determines that the lithium battery cannot be overcharged, overdischarged, overcurrent, short-circuited and ultrahigh-temperature charging and discharging;
however, in the existing charge-discharge protection board, since a voltage difference exists between the battery voltage and the charge-discharge power supply in the charge-discharge process, the charge-discharge protection board needs to adjust the voltage through some elements (such as MOS tubes), and certain voltage drop is generated in the working process of the elements, so that heat is generated, the existing charge-discharge protection board has poor heat dissipation effect, heat accumulation is generated in the circuit board, and the service life of the battery protection board is affected for a long time, so that a battery discharge protection device is needed to solve the above problems.
Disclosure of Invention
In order to overcome the above-mentioned technical problems, an objective of the present utility model is to provide a battery discharge protection device, which solves the problems that the heat dissipation effect of the conventional charge and discharge protection board is poor, heat accumulation occurs in the circuit board, and the service life of the battery protection board is affected for a long time.
The aim of the utility model can be achieved by the following technical scheme:
a battery discharge protection device comprising:
a bottom plate;
an outer case mounted on the bottom plate;
the circuit board is arranged in the outer shell, a first wiring terminal, a second wiring terminal and a display module arranged between the first wiring terminal and the second wiring terminal are arranged on the circuit board, and the display module is connected with the circuit board;
still include heat radiation structure, heat radiation structure includes:
the radiating fins are arranged at the bottom of the circuit board;
the radiating cavity is arranged below the radiating fins and is fixedly connected with the bottom plate;
the radiating fan is arranged in the radiating cavity and used for cooling the radiating fins in an air-cooling way;
and the ventilation opening is formed in the top of the heat dissipation cavity and is used for outputting wind generated when the heat dissipation fan rotates, and when the heat dissipation fan rotates, the wind is discharged through the ventilation opening to perform air cooling heat dissipation on the heat dissipation fins.
The method is further characterized in that: and the grid net is arranged in the ventilation opening and used for shunting the wind emitted by the cooling fan, and the blown wind is dispersed through the arrangement of the grid net, so that the cooling area is increased.
The method is further characterized in that: the both sides at heat dissipation cavity top set up to the inclined plane, and install the switch-on mouth on the inclined plane, switch-on mouth department installs the air pipe, and air-out end of air pipe is located the top of circuit board, through air pipe's setting, when radiator fan rotates, carries out synchronous cooling to the upper surface of circuit board, carries out two-way cooling to the circuit board, has improved the radiating efficiency of circuit board.
The method is further characterized in that: a plurality of first heat dissipation openings matched with the heat dissipation fins are formed in two sides of the outer shell, and are used for conducting out heat accumulated on the heat dissipation fins; the top of the outer shell is provided with a plurality of second heat dissipation openings for conducting out heat accumulated at the top of the circuit board; the bottom plate is provided with the air inlet matched with the cooling fan, the internal heat is conveniently led out through the arrangement of the first cooling hole and the second cooling hole, the cooling efficiency is improved, the ventilation hole is conveniently provided for the cooling fan through the arrangement of the air inlet, and internal circulation is avoided due to internal heat flow.
The method is further characterized in that: the circuit board is characterized in that connecting holes are formed in the periphery of the circuit board, connecting bosses are arranged at the bottoms of the connecting holes, the connecting bosses are fixedly connected with the bottom plate, radiating spacers are further arranged between the connecting holes and the connecting bosses, holes matched with the connecting holes are formed in the radiating spacers, the connecting bosses, the radiating spacers and the connecting holes are connected through fastening bolts in a threaded mode, the circuit board is convenient to install through the arrangement of the connecting bosses, the radiating area of the circuit board is increased, and meanwhile the circuit board is convenient to install and detach through the connecting bosses, the radiating spacers and the connecting holes through the fastening bolts in a threaded mode.
The method is further characterized in that: the top of heat dissipation baffle is annular distribution and installs a plurality of risers, with reduce with area of contact between the circuit board, reduce the area of contact between connection boss and the circuit board through the riser, reduce junction and generate heat, simultaneously, will connect between boss and the circuit board through the riser and separate, be convenient for air circulation.
The utility model has the beneficial effects that:
1. through vent and air pipe's setting, when radiator fan rotates, be convenient for carry out synchronous heat dissipation to top and bottom on the circuit board, carry out dual refrigeration to the circuit board, improved circuit board radiating efficiency, solved current charge and discharge protection shield radiating effect effectively and not good, produce the heat accumulation in the circuit board, can influence battery protection shield's life's problem for a long time.
2. Through connecting boss, through fastening bolt threaded connection between heat dissipation baffle and the connecting hole, be convenient for install and dismantle the circuit board to separate between connection boss and the circuit board through the riser, be convenient for circulation of air has improved radiating efficiency.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a perspective view of another view structure of the present utility model;
FIG. 3 is a cross-sectional view of the structure of the present utility model;
FIG. 4 is a perspective view of the internal structure of the present utility model;
FIG. 5 is an enlarged view of the structure of FIG. 4A in accordance with the present utility model;
fig. 6 is an exploded view of a partial structure of the present utility model.
In the figure: 1. a bottom plate; 2. an outer housing; 3. a circuit board; 4. a first terminal; 5. a second terminal; 6. a display module; 7. a heat radiation fin; 8. a heat dissipation chamber; 9. a heat radiation fan; 10. a vent; 11. a ventilation duct; 12. a connecting boss; 13. a heat dissipation spacer; 14. a fastening bolt; 15. a first heat radiation port; 16. a second heat radiation port; 17. and an air inlet.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, a battery discharge protection device includes a base plate 1, and an air inlet 17 adapted to a cooling fan 9 is provided on the base plate 1; the outer shell 2 is arranged on the bottom plate 1, a plurality of first heat dissipation openings 15 matched with the heat dissipation fins 7 are formed in two sides of the outer shell 2 and used for conducting away heat accumulated on the heat dissipation fins 7, and a plurality of second heat dissipation openings 16 are formed in the top of the outer shell 2 and used for conducting away heat accumulated on the top of the circuit board 3; the circuit board 3 is arranged in the outer shell 2, the circuit board 3 is provided with a first wiring terminal 4, a second wiring terminal 5 and a display module 6 arranged between the first wiring terminal 4 and the second wiring terminal 5, and the display module 6 is connected with the circuit board 3;
the heat dissipation structure comprises heat dissipation fins 7 which are arranged at the bottom of the circuit board 3; the radiating cavity 8 is arranged below the radiating fins 7 and is fixedly connected with the bottom plate 1; the radiating fan 9 is arranged in the radiating cavity 8 and is used for cooling the radiating fins 7 by air cooling; and a ventilation opening 10 which is arranged at the top of the heat dissipation chamber 8 and is used for outputting wind generated when the heat dissipation fan 9 rotates, and a grid net is arranged in the ventilation opening 10 and is used for shunting the wind emitted by the heat dissipation fan 9, wherein an outer frame of the heat dissipation fan 9 is arranged on the bottom plate 1, when the heat dissipation fan 9 is driven to rotate, the heat dissipation fan 9 rotates in the outer frame, when the circuit board 3 works, the heat dissipation fan 9 synchronously works to dissipate heat of the circuit board 3, when the heat dissipation fan 9 rotates, the air inlet 17 is used for air inlet, the heat led out by the heat dissipation fin 7 is taken away, the heat dissipation fin 7 dissipates heat from the first heat dissipation opening 15, meanwhile, the heat dissipation fan 9 rotates, the wind at the side edge enters the ventilation pipeline 11 by utilizing the limitation of the inner space of the heat dissipation chamber 8 and is discharged from the air outlet end, the heat dissipation is carried out on the top of the circuit board 3, the heat flow is discharged through the second heat dissipation opening 16, the double refrigeration is carried out on the circuit board 3, and the heat dissipation efficiency of the circuit board 3 is improved.
Referring to fig. 3 and 4, two sides of the top of the heat dissipation chamber 8 are inclined surfaces, a through hole is formed in the inclined surfaces, a ventilation pipeline 11 is arranged at the through hole, an air outlet end of the ventilation pipeline 11 is located at the top of the circuit board 3, the through hole is communicated with the inside of the heat dissipation chamber 8, the heat dissipation chamber 8 rotates through a heat dissipation fan 9, air on the side enters the ventilation pipeline 11 due to limitation of the inner space of the heat dissipation chamber 8 and is discharged from the air outlet end, heat is dissipated to the top of the circuit board 3, and heat flow is discharged through a second heat dissipation hole 16, so that the heat dissipation efficiency of the circuit board 3 is improved.
Referring to fig. 5 and 6, connecting holes are formed around the circuit board 3, connecting bosses 12 are disposed at the bottoms of the connecting holes, the connecting bosses 12 are fixedly connected with the bottom plate 1, heat dissipation spacers 13 are disposed between the connecting holes and the connecting bosses 12, holes matched with the connecting holes are formed in the heat dissipation spacers, the connecting bosses 12, the heat dissipation spacers and the connecting holes are in threaded connection through fastening bolts 14, a plurality of vertical plates are mounted on the tops of the heat dissipation spacers in an annular distribution mode so as to reduce the contact area with the circuit board 3, the heat dissipation spacers 13 are fixedly connected with the connecting bosses 12, when the circuit board 3 is mounted, the connecting holes and the holes on the circuit board 3 are aligned, the fastening bolts 14 are inserted into the connecting holes and the holes, the fastening bolts 14 are rotated, the fastening bolts 14 are in threaded connection with the connecting bosses 12, and accordingly the circuit board 3 is convenient to mount and dismount, and meanwhile the heat dissipation area of the circuit board 3 is increased.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the utility model, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the claims.
Claims (6)
1. A battery discharge protection device comprising:
a bottom plate (1);
an outer shell (2) mounted on the base plate (1);
the circuit board (3) is arranged in the outer shell (2), a first wiring terminal (4) and a second wiring terminal (5) and a display module (6) arranged between the first wiring terminal (4) and the second wiring terminal (5) are arranged on the circuit board (3), and the display module (6) is connected with the circuit board (3);
the heat dissipation structure is characterized by further comprising a heat dissipation structure, wherein the heat dissipation structure comprises:
a heat radiation fin (7) mounted on the bottom of the circuit board (3);
the radiating cavity (8) is arranged below the radiating fins (7) and is fixedly connected with the bottom plate (1);
the radiating fan (9) is arranged in the radiating cavity (8) and is used for cooling the radiating fins (7) in an air-cooling way;
and the ventilation opening (10) is arranged at the top of the heat dissipation cavity (8) and is used for outputting wind generated when the heat dissipation fan (9) rotates.
2. A battery discharge protection device according to claim 1, characterized in that a grid mesh is installed in the ventilation opening (10) for diverting the wind emitted by the cooling fan (9).
3. The battery discharge protection device according to claim 1, wherein two sides of the top of the heat dissipation chamber (8) are provided with inclined surfaces, a through hole is arranged on each inclined surface, a ventilation pipeline (11) is arranged at each through hole, and an air outlet end of each ventilation pipeline (11) is positioned at the top of the circuit board (3).
4. The battery discharge protection device according to claim 1, wherein a plurality of first heat dissipation openings (15) adapted to the heat dissipation fins (7) are formed on both sides of the outer case (2) for conducting out heat accumulated on the heat dissipation fins (7);
a plurality of second heat dissipation openings (16) are formed in the top of the outer shell (2) and are used for conducting out heat accumulated at the top of the circuit board (3);
an air inlet (17) matched with the cooling fan (9) is formed in the bottom plate (1).
5. The battery discharge protection device according to claim 1, wherein the periphery of the circuit board (3) is provided with a connecting hole, the bottom of the connecting hole is provided with a connecting boss (12), the connecting boss (12) is fixedly connected with the bottom plate (1), a heat dissipation spacer (13) is further arranged between the connecting hole and the connecting boss (12), a hole matched with the connecting hole is formed in the heat dissipation spacer, and the connecting boss (12), the heat dissipation spacer and the connecting hole are in threaded connection through a fastening bolt (14).
6. The battery discharge protection device according to claim 5, wherein a plurality of vertical plates are installed on the top of the heat dissipation separator in a ring shape to reduce the contact area with the circuit board (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322262545.7U CN220732390U (en) | 2023-08-22 | 2023-08-22 | Battery discharge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322262545.7U CN220732390U (en) | 2023-08-22 | 2023-08-22 | Battery discharge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220732390U true CN220732390U (en) | 2024-04-05 |
Family
ID=90493199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322262545.7U Active CN220732390U (en) | 2023-08-22 | 2023-08-22 | Battery discharge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220732390U (en) |
-
2023
- 2023-08-22 CN CN202322262545.7U patent/CN220732390U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |