CN218274933U - Battery package and garden instrument - Google Patents
Battery package and garden instrument Download PDFInfo
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- CN218274933U CN218274933U CN202222464722.5U CN202222464722U CN218274933U CN 218274933 U CN218274933 U CN 218274933U CN 202222464722 U CN202222464722 U CN 202222464722U CN 218274933 U CN218274933 U CN 218274933U
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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 provides a battery package and garden instrument, include: a box body; the battery modules are arranged in the box body at intervals; the cooling air duct is formed between the plurality of battery modules arranged at intervals and the box body; the air inlet component and the air outlet component are arranged on the box body corresponding to the head end and the tail end of the cooling air duct, so that external air flows into the box body from an inlet of the air inlet component and flows out of the box body from an outlet of the air outlet component; and the cooling assembly is arranged on at least part of a path between the inlet of the air inlet assembly and the box body, and the air flowing in through the inlet of the air inlet assembly is in contact with the cooling assembly. The utility model discloses the realization has improved cooling effect and cooling efficiency to the whole cooling of battery module, has avoided partial monomer battery cooling unobvious to avoid unable radiating effect and cause the problem of thermal runaway, practiced thrift the space effectively and the cost is reduced, improve battery package operational environment, solve the foreign matter simultaneously effectively and inhale and the splashproof function.
Description
Technical Field
The utility model belongs to the technical field of the battery package, concretely relates to battery package and garden instrument.
Background
The self-heating of the battery pack is an important factor affecting the life and safety thereof. When the battery pack is charged and discharged, the battery is internally subjected to various chemical reactions to generate heat, so that the temperature of the battery pack is high. If the battery pack works in an environment higher than normal working temperature for a long time, the aging process of the battery can be accelerated, the service life of the battery can be shortened, and thermal runaway can be caused in severe cases.
The power battery pack is composed of a plurality of square batteries or cylindrical batteries. For a square battery, the scheme of an active heat management device generally comprises two types of liquid cooling and air cooling, and the liquid cooling management device for the square battery is relatively complex in structure and relatively high in cost; conventional cylinder battery's heat management mode, set up radiator fan in one side of battery package usually, and set up the air outlet at radiator fan's offside, blow in from one side of battery package through utilizing radiator fan to make cold wind, and blow out from the offside of this side, however, if only make radiator fan realize the forced air cooling through supplying air to one side of battery package and handle, if external environment temperature is higher, it is not obvious to have partial battery cell cooling easily, thereby can't reach the radiating effect, cause the thermal runaway problem.
SUMMERY OF THE UTILITY MODEL
In view of the shortcoming of the above prior art, the utility model aims to provide a battery pack to there is some battery cell cooling unobvious in the cooling method who improves current battery, thereby can't reach the radiating effect, causes the thermal runaway problem.
To achieve the above and other related objects, the present invention provides a battery pack, including:
a box body;
the battery modules are arranged in the box body at intervals;
the cooling air duct is formed between the plurality of battery modules and the box body which are arranged at intervals;
the air inlet component and the air outlet component are arranged on the box body corresponding to the head end and the tail end of the cooling air duct, so that external air flows into the box body from an inlet of the air inlet component and flows out of the box body from an outlet of the air outlet component;
and the cooling assembly is arranged on at least part of the path between the inlet of the air inlet assembly and the box body, and the wind flowing in through the inlet of the air inlet assembly is in contact with the cooling assembly.
In an embodiment of the present invention, the cooling assembly includes a semiconductor refrigeration plate, the semiconductor refrigeration plate is installed on at least a part of a path between the box and an inlet of the air intake assembly.
In an embodiment of the present invention, the cooling assembly further includes a heat sink, and the heat sink has an air gap uniformly distributed thereon, and the air gap is at least partially communicated with the inner space of the box body, so that the air flowing into the air inlet assembly inlet flows into the box body through the air gap.
In one embodiment of the present invention, the cooling surface of the heat sink covers the outside of the opening on the box body at the junction of the air intake assembly and the box body.
In an embodiment of the present invention, the heat dissipation plate is integrally formed with the semiconductor refrigeration plate or is disposed on the semiconductor refrigeration plate in a split manner by connecting the heat dissipation plate and the semiconductor refrigeration plate through a heat conductive adhesive.
In an embodiment of the present invention, the heat dissipation plate includes a plurality of spaced sub-heat dissipation plates, the air gap is formed between two adjacent sub-heat dissipation plates, and the distance between two adjacent sub-heat dissipation plates is set between 1mm and 2cm, and the thickness of the sub-heat dissipation plates is set between 0.5mm and 5 mm.
In an embodiment of the present invention, the air inlet assembly includes an air inlet cover installed on the outer side of the box body, the air inlet cover is parallel to the lower end surface of the bottom surface of the box body and is configured as an air inlet, there is a included angle between the air inlet and the vertical direction, and the included angle is set between 20 ° and 80 °.
In an embodiment of the present invention, the air inlet is a slant structure, and an upper edge of the slant structure is located below the air inlet component and a lower edge of the opening on the box body at the junction of the air inlet component and the box body.
In an embodiment of the invention, the included angle is set in a range between 40 ° and 60 °.
The utility model discloses an embodiment, the battery package still includes the dust screen, dust screen detachably arranges the air inlet subassembly with the box juncture.
The utility model discloses an embodiment, the air-out subassembly includes:
and the centrifugal fans are arranged on the box body corresponding to the tail ends of the cooling air channels, and each centrifugal fan at least acts on one cooling air channel.
In an embodiment of the present invention, the battery pack further includes a temperature monitoring assembly and a control assembly for detecting the internal temperature of the battery pack, the cooling assembly and the control assembly for starting and stopping the centrifugal fan, and the control assembly is connected to the temperature monitoring assembly, the cooling assembly and the centrifugal fan respectively.
The utility model provides a garden tool, which comprises a battery pack, wherein the battery pack is electrically connected with garden equipment so as to provide electric power for the garden equipment;
the battery pack includes:
a box body;
the battery modules are arranged in the box body at intervals;
the cooling air duct is formed between the plurality of battery modules and the box body which are arranged at intervals;
the air inlet assembly and the air outlet assembly are arranged on the box body corresponding to the head end and the tail end of the cooling air duct, so that external air flows into the box body from an inlet of the air inlet assembly and flows out of the box body from an outlet of the air outlet assembly;
and the cooling assembly is arranged on at least part of a path between the inlet of the air inlet assembly and the box body, through which wind flows, and the wind flowing in through the inlet of the air inlet assembly is in contact with the cooling assembly.
The utility model provides a battery pack sets up air inlet subassembly and air-out subassembly respectively through the both sides relative at the box, and is formed with the cooling duct between two adjacent battery module in the box for cold wind passes through the cooling duct runs through battery module to realize the whole cooling to battery module, avoided partial monomer battery cooling unobvious, thereby avoided unable radiating effect and cause the thermal runaway problem.
The utility model provides a battery pack through set up semiconductor refrigeration board and heat dissipation aluminum plate in the air inlet subassembly, has improved the cooling effect to the battery module, and has practiced thrift the space effectively, and the cost is reduced widely has improved its cooling efficiency, improves battery pack operational environment.
The utility model provides a battery pack, through the dust screen in the air inlet subassembly with set the air intake to have certain contained angle with vertical direction for it solves the foreign matter effectively and inhales and the splash proof function.
The utility model provides a garden instrument, battery package are connected with garden instrument electricity to provide transmission power to garden instrument, with drive garden instrument work, through realizing the whole cooling to the battery module, it is not obvious to have avoided the cooling of part battery cell, thereby guarantees that the battery package is to garden instrument's normal power supply, normally just stable work with the assurance instrument of keeping away from.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the interior of a battery pack according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a battery module in a battery pack according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a box body in a battery pack according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating an explosion structure of a battery pack according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of an air intake assembly in a battery pack according to an embodiment of the present invention.
Fig. 7 is an exploded schematic view of an air intake assembly in a battery pack according to an embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view of an air intake assembly in a battery pack according to an embodiment of the present invention.
Description of reference numerals:
a battery module 100; a battery pack 200; a battery module 10; a battery cell 101; an end plate 20; fixing bolt holes 206; a case 50; a cooling air duct 501; an inner air inlet 502; a first outlet 503; an air intake assembly 51; an air intake cover 511; a cooling assembly 512; an outer air inlet 5111; a semiconductor refrigeration plate 5121; the subfins 5122; a dust screen 513; the air outlet assembly 52; a centrifugal fan 521; an air outlet cover 522; a case cover 53; a mount 54.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Please refer to fig. 1 to 8, the present invention provides a battery pack, which is used to improve the cooling effect of the existing battery, such that the cooling of some single batteries is not obvious, and thus the heat dissipation effect cannot be achieved, causing the problem of thermal runaway, specifically, in this embodiment, the battery pack 200 includes a battery module 100 and a box 50, specifically, an air inlet component 51 and an air outlet component 52 are respectively disposed on two opposite sides of the box 50, and cooling air enters the box 10 from the air inlet component 51 and is discharged from the air outlet component 52 after flowing through each battery module 100, so as to realize the cooling effect on each battery module 100 in the box 50. In this embodiment, a cover 53 is further disposed above the box 50 to close and protect the battery module 51 and the related electrical components mounted in the box 50.
Referring to fig. 1 to fig. 3, in the present embodiment, the battery module 100 includes a battery module 10 and end plates 20, the end plates 20 are disposed on two sides of the battery module 10, the battery module 10 includes a plurality of battery cells 101, and the battery cells 101 are sequentially stacked and connected together, in the present embodiment, heat dissipation fins are disposed between the battery cells 101, and the battery cells 101 and the heat dissipation fins are adhered together by an adhesive. Specifically, the battery cell 101 includes a wide surface and a narrow surface, the wide surfaces of the battery cell 101 are stacked, and are connected to the heat sink, and the heat sink can dissipate heat of the battery cell 101 quickly, so as to avoid over-temperature of the battery cell 101.
Referring to fig. 1 to 4, in the present embodiment, fixing bolt holes 206 are further disposed at two ends of the end plate 20, specifically, a plurality of fixing brackets 54 are disposed around the bottom surface of the inside of the case 50, and two ends of the end plate 20 along the height direction of the battery module 10, that is, the top surface and the bottom surface of the end plate 20 are provided with the fixing screw holes 206, so that the battery module 100 is fixedly connected to the case 50 of the battery pack 200 by passing fixing bolts through the fixing screw holes 206 and fixedly connecting the fixing bolts to the fixing brackets 54. It should be noted that, in this embodiment, a plurality of battery modules 100 are disposed in the case 50, and each battery module 100 is fixedly connected to the fixing screw hole 206 through a bolt, so as to fixedly connect the battery module 100 and the case 50 of the battery pack 200 together.
Referring to fig. 1 and fig. 2, in the present embodiment, the present invention further includes a cooling air duct 501, the cooling air duct 501 is formed between the plurality of battery modules 100 and the box 50, and specifically, the plurality of battery modules 100 are arranged in the box 50 at intervals to form the cooling air duct 501. For example, one cooling air duct 501 is formed between two adjacent battery modules 100 in the box 50, and the cooling air duct 501 is also formed between the battery modules 100 on both sides and the inner side wall of the box 50, so that cooling wind can flow around the battery modules 100. The two ends of the cooling air duct 501 are respectively close to the air inlet component 51 and the air outlet component 52, that is, the air inlet component 51 and the air outlet component 52 are respectively arranged on the box 50 corresponding to the head and tail ends of the cooling air duct 501, so that external air flows into the box 50 from the inlet of the air inlet component 51 and flows out of the box 50 from the outlet of the air outlet component 52.
Referring to fig. 1 and 5, in the present embodiment, an inner air inlet 502 and a first air outlet 503 are respectively disposed on two opposite sides of the box 50, the air inlet assembly 51 is disposed on the box 501 and located outside the inner air inlet 502, and the air outlet assembly 52 is also disposed on the box 50 and located outside the first air outlet 502.
Referring to fig. 1 and 5 to 8, in this embodiment, the air intake assembly 51 includes an air intake cover 511 and a cooling assembly 512, the air intake cover 511 is disposed on the box 50 and located outside the inner air inlet 502, the cooling assembly 512 is disposed on at least a portion of a path between an inlet of the air intake assembly 51 and the box 50 through which air flows, and the air flowing through the inlet of the air intake assembly 51 contacts the cooling assembly 512, specifically, the cooling assembly 512 is connected to the air intake cover 511 and located inside the air intake cover 511, and is used for cooling the air entering the box 50 through the air intake assembly 51, so as to improve the cooling effect of the battery module 100.
Referring to fig. 1 and 5 to 8, in the present embodiment, an outer air inlet 5111 is disposed at the bottom of the air inlet cover 511, the outer air inlet 5111 is, for example, of a grid structure, and can prevent impurities from entering the air inlet assembly 51, and an included angle is formed between the outer air inlet 5111 and the vertical direction, the included angle is, for example, set between 20 ° and 80 ° to achieve a function of preventing splashing, and preferably, the included angle is, for example, set between 40 ° and 60 °. It should be further noted that the outer air inlet 5111 is an inclined plane structure, an upper edge of the inclined plane structure is located below a lower edge of an opening on the box 50 at a junction of the air inlet assembly and the box, that is, a certain distance L exists between the upper edge of the inclined plane structure and a lower edge of the inner air inlet 502, so as to ensure that the air entering the box 50 passes through the cooling assembly 512 in the air inlet assembly 51.
It should be noted that the air intake cover 511 is, for example, detachably mounted to the box 50, for example, by a snap or a bolt, so as to facilitate replacement or cleaning of the air intake assembly 51.
Referring to fig. 1 and 5 to 8, in this embodiment, the cooling assembly 512 includes a semiconductor refrigeration plate 5121 and a heat sink, the semiconductor refrigeration plate 5121 is installed on at least a part of a path through which wind flows between an inlet of the air intake assembly 51 and the box 50, air gaps are uniformly distributed on the heat sink, specifically, the heat sink may be an aluminum heat sink sheet without limitation, the heat sink includes a plurality of sub heat sinks 5122 arranged at intervals, the air gaps are formed between two adjacent sub heat sinks 5122, at least a part of the air gaps are communicated with an inner space of the box, so that the wind flowing from the inlet of the air intake assembly flows into the box through the air gaps, and the direction of the air gaps is configured to facilitate the wind flowing into the box 50 through the air intake assembly 51, so as to ensure that the wind can smoothly enter the box 50, thereby improving cooling efficiency. It should be further noted that the cooling surface of the heat sink covers the outside of the opening on the box 50 at the junction of the air intake assembly 51 and the box 50, that is, the cooling surface of the heat sink covers the outside of the inner air inlet 502, so as to cool the air entering the box 50.
Referring to fig. 1 and 5 to 8, in this embodiment, the semiconductor refrigeration plate 5121 is fixed on the air intake cover 511 and located inside the air intake cover 511, and the plurality of sub-cooling fins 5122 are arranged on the semiconductor refrigeration plate 5121 at intervals, so that the passing air is cooled by the semiconductor refrigeration plate 5121 and the sub-cooling fins 5122, thereby improving the cooling effect on the battery module 100. It should be noted that the semiconductor refrigeration plate 5121 and the heat sink 5222 are an integrally formed structure or a plurality of the sub heat sink 5122 is arranged on the semiconductor refrigeration plate 5121 in a split manner through the connection of the heat-conducting glue, the semiconductor refrigeration plate 5121 and the heat sink can be combined to pass through the mounting holes on the heat sink to be connected to the air inlet cover, and the semiconductor refrigeration plate 5121 and the sub heat sink 5122 are arranged in the air inlet assembly 51, so that the cooling effect on the battery module 100 is improved, the space is effectively saved, the cost is greatly reduced, the cooling efficiency is improved, and the working environment of the battery pack is improved.
Referring to fig. 1 and 5 to 8, in the present embodiment, the thickness of the sub-fins 5122 is set to be between 0.5mm and 5mm, and the distance between two adjacent sub-fins 5122 is set to be between 1mm and 2cm, so as to prevent the air inlet from being blocked by the condensed water due to too small distance, and increase the contact area between the sub-fins 5122 and the air as much as possible, thereby improving the cooling effect.
Referring to fig. 1 and fig. 5 to 8, in this embodiment, the air intake assembly 51 further includes a dust screen 513, the dust screen 51 is detachably disposed at a junction between the air intake assembly 51 and the box 50, for example, the dust screen 513 is mounted on the box 50, the air intake cover 511 is covered on an outer side of the dust screen 513, specifically, the dust screen 513 is detachably mounted on the inner air inlet 502 of the box 50, and is fixedly connected to the box 50, for example, by a bolt or a buckle, so as to prevent foreign matters from being sucked into the box 50, and further perform a water splashing prevention function.
Referring to fig. 1 and 5, in the present embodiment, the air outlet assembly 52 is disposed on a side of the box 50 where the first air outlet 503 is disposed, the air outlet assembly 52 includes at least one centrifugal fan 521, the centrifugal fan 521 is disposed on the box 50 corresponding to a tail end of the cooling air duct 501, and each centrifugal fan 521 at least acts on one cooling air duct 501.
When the centrifugal fan 521 is disposed on the outside of the box 50, an air outlet cover 522 may be covered on the outside of the centrifugal fan 521, that is, the air outlet cover 52 is disposed on the outside of the box 50 and covers the outside of the centrifugal fans 521, and an air outlet 5221 is disposed at the bottom of the air outlet cover 522 for protecting the centrifugal fan 521. It should be noted that the air outlet cover 522 is detachably connected to the box 50, so as to replace or clean the air outlet assembly 52.
Referring to fig. 1 and 5, in this embodiment, the centrifugal fans 521 may be disposed according to the positions of the cooling air channels 501, that is, each centrifugal fan 521 corresponds to one cooling air channel 501, or the centrifugal fans 521 are uniformly disposed on one side of the box 50 where the first air outlet 503 is disposed, when the centrifugal fan 521 is started, the cooling component 512 in the air intake component 51 is started, air enters the inside of the air intake cover 511 from the external air inlet 5111, passes through the cooling component 512, cools the air entering the air intake cover 511 through the semiconductor refrigeration plate 5121 and the sub-cooling fins 5122, and after the centrifugal fan 521 is started, the cold air is brought into the box 50 and then flows out from the second air outlet 5221 after passing through each battery module 100 uniformly along each cooling air channel 501, so as to cool the battery.
It should be further noted that, in this embodiment, the battery pack 200 further includes a control component and a temperature monitoring component, the temperature monitoring component is connected to the control component, and the control component is connected to the cooling component 512 and the centrifugal fan 521 and is configured to control the start and stop of the cooling component 512 and the centrifugal fan 521, when the temperature monitoring component monitors that the temperature inside the battery pack 200 is too high, the control component controls the semiconductor refrigeration plate 5121 in the cooling component 512 and the centrifugal fan 521 to start so as to implement the cooling process on the battery pack 200, and when the temperature returns to normal, the control component controls the semiconductor refrigeration plate 5121 in the cooling component 512 and the centrifugal fan 521 to stop working, thereby completing the cooling process. For example, a temperature threshold is preset in the control module, and when the temperature monitoring module monitors that the internal temperature of the battery pack 200 exceeds the temperature threshold, the control module is notified to control the semiconductor refrigeration plate 5121 and the centrifugal fan 521 in the cooling module 512 to start, so as to automatically implement the cooling process on the battery pack 200. Alternatively, the centrifugal fan 521 may be separately started, that is, when the temperature in the battery pack 200 is not very high, that is, when the temperature at which both of the battery packs need to be started is not reached, the cooling assembly 512 is not required to operate, and the battery pack 200 is cooled only by simple air cooling. The control program related to the above-mentioned control component is the prior art, and is not described herein in detail.
The utility model also provides a garden tool, which comprises the battery pack, wherein the battery pack is electrically connected with the garden equipment so as to provide electric power for the garden equipment; the battery pack 200 includes a case 50, a plurality of battery modules 100, a cooling air duct 501, an air inlet component 51, an air outlet component 52, and a cooling component 512, wherein the plurality of battery modules 100 are disposed in the case 50 at intervals, the cooling air duct 501 is formed between the plurality of battery modules 100 and the case 50 disposed at intervals, the air inlet component 51 and the air outlet component 52 are disposed on the case 50 corresponding to the head and tail ends of the cooling air duct 501, respectively, so that external air flows into the case 50 from an inlet of the air inlet component 51 and flows out of the case 50 from an outlet of the air outlet component 52, the cooling component 512 is disposed on at least a part of a path between the inlet of the air inlet component 51 and the case 50, and the air flowing in through the inlet of the air inlet component 51 contacts with the cooling component 51, wherein the specific structure and connection manner of the battery pack 100 are consistent with those described in the above embodiments, and further description is omitted.
The utility model provides a battery pack sets up air inlet subassembly 51 and air-out subassembly 52 respectively through the both sides relative at box 50, and box 50 and place and form a plurality of cooling duct between a plurality of battery module 100 in box 50 for cold wind passes through cooling duct runs through battery module 100 to the realization is to battery module 100's whole cooling, has avoided partial battery cell cooling unobvious, thereby has avoided unable radiating effect to reach and has initiated the thermal runaway problem.
The utility model provides a battery pack through set up semiconductor refrigeration board 5121 and subfins 5122 in air inlet subassembly 51, has improved the cooling effect to battery module 100, and has practiced thrift the space effectively, great reduction of cost has improved its cooling efficiency, improves battery pack operational environment.
The utility model provides a battery pack, through the dust screen 513 among the air inlet subassembly 51 and set the air intake to have certain contained angle with vertical direction for its effectual solution foreign matter inhales and the splashproof function.
The utility model provides a garden instrument, battery package are connected with garden instrument electricity to provide transmission power to garden instrument, with drive garden instrument work, through realizing the whole cooling to the battery module, it is not obvious to have avoided the cooling of part battery cell, thereby guarantees that the battery package is to garden instrument's normal power supply, normally just stable work with the assurance instrument of keeping away from.
The above description is only a preferred embodiment of the present application and the explanation of the technical principle used, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.
Claims (13)
1. A battery pack, comprising:
a box body;
the battery modules are arranged in the box body at intervals;
the cooling air duct is formed between the plurality of battery modules and the box body which are arranged at intervals;
the air inlet assembly and the air outlet assembly are arranged on the box body corresponding to the head end and the tail end of the cooling air duct, so that external air flows into the box body from an inlet of the air inlet assembly and flows out of the box body from an outlet of the air outlet assembly;
and the cooling assembly is arranged on at least part of a path between the inlet of the air inlet assembly and the box body, through which wind flows, and the wind flowing in through the inlet of the air inlet assembly is in contact with the cooling assembly.
2. The battery pack of claim 1, wherein the cooling assembly includes a semiconductor chilling plate mounted on at least part of a path of wind flowing between the inlet of the wind intake assembly and the case.
3. The battery pack of claim 2, wherein the cooling assembly further comprises a heat sink, and air gaps are uniformly distributed on the heat sink and at least partially communicated with the inner space of the box body, so that air flowing into the inlet of the air intake assembly flows into the box body through the air gaps.
4. The battery pack of claim 3, wherein the cooling surface of the heat sink covers an exterior side of an opening in the case where the air intake assembly interfaces with the case.
5. The battery pack according to claim 3 or 4, wherein the heat sink and the semiconductor refrigeration plate are integrally formed or separately arranged on the semiconductor refrigeration plate by means of heat-conducting glue connection.
6. The battery pack of claim 3, wherein the heat sink includes a plurality of spaced-apart subfins, the air gap is formed between two adjacent subfins, a distance between two adjacent subfins is set to be 1mm to 2cm, and a thickness of the subfins is set to be 0.5mm to 5 mm.
7. The battery pack of claim 1, wherein the air intake assembly comprises an air intake cover mounted outside the box body, the air intake cover is configured as an air intake parallel to the lower end surface of the bottom surface of the box body, an included angle exists between the air intake and the vertical direction, and the included angle is set to be 20 ° to 80 °.
8. The battery pack of claim 7, wherein the air inlet is a beveled structure having an upper edge that is positioned below a lower edge of an opening in the case at the interface of the air inlet assembly and the case.
9. The battery pack of claim 7, wherein the included angle is set in a range between 40 ° and 60 °.
10. The battery pack of claim 1, further comprising a dust screen removably disposed at an interface of the intake assembly and the case.
11. The battery pack of claim 1, wherein the air outlet assembly comprises:
and the centrifugal fans are arranged on the box body corresponding to the tail ends of the cooling air channels, and each centrifugal fan at least acts on one cooling air channel.
12. The battery pack according to claim 11, further comprising a temperature monitoring assembly for detecting an internal temperature of the battery pack, and a control assembly for controlling the start and stop of the cooling assembly and the centrifugal fan, and the control assembly is connected to the temperature monitoring assembly, the cooling assembly, and the centrifugal fan, respectively.
13. A garden tool, comprising the battery pack according to any one of claims 1 to 12, electrically connected to the garden tool to provide power to the garden tool;
the battery pack includes:
a box body;
the battery modules are arranged in the box body at intervals;
the cooling air duct is formed between the plurality of battery modules and the box body which are arranged at intervals;
the air inlet component and the air outlet component are arranged on the box body corresponding to the head end and the tail end of the cooling air duct, so that external air flows into the box body from an inlet of the air inlet component and flows out of the box body from an outlet of the air outlet component;
and the cooling assembly is arranged on at least part of a path between the inlet of the air inlet assembly and the box body, through which wind flows, and the wind flowing in through the inlet of the air inlet assembly is in contact with the cooling assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222464722.5U CN218274933U (en) | 2022-09-16 | 2022-09-16 | Battery package and garden instrument |
| PCT/CN2023/118867 WO2024056034A1 (en) | 2022-09-16 | 2023-09-14 | Battery pack and mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222464722.5U CN218274933U (en) | 2022-09-16 | 2022-09-16 | Battery package and garden instrument |
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| Publication Number | Publication Date |
|---|---|
| CN218274933U true CN218274933U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222464722.5U Active CN218274933U (en) | 2022-09-16 | 2022-09-16 | Battery package and garden instrument |
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| Country | Link |
|---|---|
| CN (1) | CN218274933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024056034A1 (en) * | 2022-09-16 | 2024-03-21 | 格力博(江苏)股份有限公司 | Battery pack and mower |
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2022
- 2022-09-16 CN CN202222464722.5U patent/CN218274933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024056034A1 (en) * | 2022-09-16 | 2024-03-21 | 格力博(江苏)股份有限公司 | Battery pack and mower |
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