CN107157404A - The battery bag and dust catcher of dust catcher - Google Patents

Abstract

The present invention discloses the battery bag and dust catcher of a kind of dust catcher, and battery bag includes housing, battery and radiating subassembly, and battery and radiating subassembly are respectively positioned in housing, and radiating subassembly is used to radiate to battery.According to the dust catcher of the present invention, by setting radiating subassembly in the housing of battery bag, heat can be produced to battery and carry out radiating treatment, reduce the temperature in battery bag, so as to so that battery is operated within the scope of suitable temperature, battery performance is maximized and played, and then the service life of battery can be lifted, lift working time and the operating efficiency of dust catcher.Quick heat radiating, can also reduce the charging stand-by period after use simultaneously.

Description

Vacuum cleaner battery pack and vacuum cleaner

technical field

The present invention relates to the technical field of household electrical appliances, in particular, to a battery pack of a vacuum cleaner and the vacuum cleaner.

Background technique

With the continuous accumulation and breakthroughs in technology of the vacuum cleaner industry, newer and more useful vacuum cleaners are gradually entering thousands of households, and rechargeable vacuum cleaners are among the best. At the same time, consumers are demanding more and more efficiency and working time from cordless vacuum cleaners. However, batteries in vacuum cleaners usually have strict temperature control requirements, and discharge must be stopped when the temperature is higher than a certain temperature. There is a contradiction between the increasing energy density and high-efficiency dust collection requirements and the heating of the battery. In related technologies, the battery pack mainly uses natural heat dissipation, which has poor heat dissipation effect and low efficiency, and cannot meet the performance requirements of the vacuum cleaner. How to ensure the high current and continuous discharge of the battery pack has become a bottleneck in the field of vacuum cleaners.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a battery pack for a vacuum cleaner, which has the advantages of simple design and structure and good heat dissipation effect.

The present invention also proposes a vacuum cleaner, which has the battery pack of the vacuum cleaner as described above.

The battery pack of a vacuum cleaner according to an embodiment of the present invention includes: a housing; a battery, the battery is located in the housing; and a heat dissipation assembly for dissipating heat from the battery, and the heat dissipation assembly is located in the housing.

According to the battery pack of the vacuum cleaner according to the embodiment of the present invention, by arranging a heat dissipation component in the housing of the battery pack, the heat generated by the battery can be dissipated, and the temperature in the battery pack can be reduced, so that the battery can work within a suitable temperature range. The performance of the battery is maximized, which in turn can increase the service life of the battery and improve the working time and efficiency of the vacuum cleaner. At the same time, rapid heat dissipation can also reduce the waiting time for charging after use.

According to some embodiments of the present invention, the two opposite side walls of the housing are a first side wall and a second side wall, the first side wall has a first through hole, and the second side wall has a first through hole. Two through holes, the first through hole is opposite to the second through hole, the battery and the heat dissipation assembly are located between the first side wall and the second side wall. Thus, the air inside the casing can communicate with the air outside the casing through the first through hole and the second through hole, so that the heat exchange rate can be increased, which is beneficial to the heat dissipation and cooling of the battery pack.

In some embodiments of the present invention, in the direction from the first side wall to the second side wall, the battery and the heat dissipation assembly are arranged side by side. In this way, the range and effect of the heat dissipation component on the battery can be improved, thereby reducing the temperature of the battery pack.

In some examples of the present invention, there are multiple first through holes and multiple second through holes, and the multiple first through holes correspond to the multiple second through holes one by one. Thus, the plurality of first through holes and the plurality of second through holes can communicate with the inside of the housing and the outside of the housing, thereby increasing the heat exchange rate of the air.

According to some embodiments of the present invention, the heat dissipation component is a wind wheel. Thus, the air in the casing can flow, and the flowing air can pass through the first through hole and the second through hole, so that the heat dissipation of the battery can be accelerated, so that the battery will not immediately enter the temperature protection in the case of rapid discharge, thereby It can prolong the discharge time of the battery and improve the working time of the vacuum cleaner.

According to still other embodiments of the present invention, the heat dissipation component is a heat dissipation fin, one end of the heat dissipation fin is connected to the battery, and the other end of the heat dissipation fin extends toward the housing. In this way, heat can be transferred to the heat sink, so that the temperature of the battery itself will not rise too quickly, and at the same time, the waiting time for cooling the battery during charging can be shortened.

According to a further embodiment of the present invention, the other end of the heat sink has a plurality of spaced apart grooves. Thus, the air volume in the battery pack can be increased, and the heat of the heat sink can be transferred out through the air in the groove, thereby improving the heat exchange efficiency.

According to some further embodiments of the present invention, the heat dissipation component is a heat dissipation silica gel layer, and the heat dissipation silica gel layer is wrapped around the periphery of the battery. Thus, the heat absorption of the battery can be realized by utilizing the shape change of the heat dissipation silica gel layer, and a large amount of heat can be stored in the heat dissipation silica gel layer to lower the temperature of the battery.

According to other embodiments of the present invention, the heat dissipation component is a semiconductor heat sink. In this way, the cooling of the semiconductor can be used to absorb the heat of the battery and achieve the purpose of cooling down.

According to some examples of the present invention, the batteries are a plurality of spaced apart ones. Thus, the capacity of the battery pack can be increased, and the discharge time of the battery pack can be extended, thereby increasing the use time of the vacuum cleaner.

The vacuum cleaner according to the embodiment of the present invention includes the battery pack of the vacuum cleaner according to any one of the above items.

According to the vacuum cleaner of the embodiment of the present invention, by arranging a heat dissipation component in the housing of the battery pack, the heat generated by the battery can be dissipated, and the temperature in the battery pack can be reduced, so that the battery can work in a suitable temperature range and the battery performance is the largest. Maximize the performance, which in turn can improve the service life of the battery, improve the working time and efficiency of the vacuum cleaner. At the same time, rapid heat dissipation can also reduce the waiting time for charging after use.

According to some embodiments of the present invention, the battery pack is located in the air duct of the vacuum cleaner. Thus, the air duct in the vacuum cleaner can be used to form a convection channel with the air in the inner chamber to accelerate the air flow rate, thereby improving the heat exchange rate between the air in the inner chamber and the air in the air duct, thereby improving the heat dissipation efficiency of the battery pack .

Description of drawings

The above and additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments when taken in conjunction with the following drawings, in which:

Fig. 1 is a schematic cross-sectional structure diagram of a battery pack of a vacuum cleaner according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of a battery pack of a vacuum cleaner according to an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional partial structure diagram of a battery pack of a vacuum cleaner according to an embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram of a battery pack of a vacuum cleaner according to an embodiment of the present invention.

Reference signs:

battery pack 1,

Housing 10, inner chamber 100, first side wall 110, first through hole 111, second side wall 120, second through hole 121,

battery 20,

Heat dissipation component 30 , wind wheel 310 , heat sink 320 , groove 321 , heat dissipation silicone layer 330 , semiconductor heat sink 340 .

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings , is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following describes a battery pack 1 of a vacuum cleaner according to an embodiment of the present invention with reference to FIGS. 1-4 .

As shown in FIGS. 1-4 , a battery pack 1 for a vacuum cleaner according to an embodiment of the present invention includes a casing 10 , a battery 20 and a heat dissipation assembly 30 . Wherein, the battery 20 is located in the casing 10 , and the heat dissipation assembly 30 is located in the casing 10 , and the heat dissipation assembly 30 can dissipate heat to the battery 20 . It can be understood that the casing 10 is formed with an inner chamber 100, and the battery 20 and the heat dissipation assembly 30 can be located in the inner chamber 100. When the battery 20 supplies power to the vacuum cleaner, the temperature of the battery 20 will increase and generate heat, and the heat dissipation assembly 30 The inner chamber 100 can be dissipated and cooled.

According to the battery pack 1 of the vacuum cleaner in the embodiment of the present invention, by setting the heat dissipation assembly 30 in the housing 10 of the battery pack 1, the heat generated by the battery 20 can be dissipated, and the temperature of the battery pack 1 can be reduced, so that the battery 20 can Working in a suitable temperature range, the performance of the battery 20 can be maximized, thereby prolonging the service life of the battery 20 and improving the working time and working efficiency of the vacuum cleaner. At the same time, rapid heat dissipation can also reduce the charging waiting time of the battery 20 after use.

It should be noted that the specific shape of the casing 10 is not limited, and may be in the shape of a cuboid, a cube, or a circular truncated shape. Further, the battery 20 may be a lithium ion battery, a lithium ion battery is a rechargeable battery, which mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. The high energy density of lithium-ion batteries is getting higher and higher, and they have large capacity and long-lasting discharge. The application in the field of vacuum cleaners can greatly increase the working time of vacuum cleaners. Moreover, the lithium-ion battery is small in size and takes up little space, which is conducive to the miniaturization and aesthetic design of the vacuum cleaner.

As shown in FIGS. 1-2 and 4, according to some embodiments of the present invention, the two opposite side walls of the housing 10 are respectively a first side wall 110 and a second side wall 120, and the first side wall 110 has The first through hole 111, the second side wall 120 has a second through hole 121, the first through hole 111 is opposite to the second through hole 121, the battery 20 and the heat dissipation assembly 30 are located on the first side wall 110 and the second side wall 120 between.

It can be understood that the casing 10 has two opposite side walls, namely the first side wall 110 and the second side wall 120 , and the battery 20 and the heat dissipation assembly 30 can be located on the first side wall 110 and the second side wall 120 Between, the first side wall 110 can be provided with a first through hole 111, the first through hole 111 can communicate the inner chamber 100 of the casing 10 with the outside world, and the second side wall 120 is provided with a second through hole 121 , the second through hole 121 can communicate the inner chamber 100 of the housing 10 with the outside world, and the first through hole 111 is opposite to the second through hole 121 .

For example, in some examples of the present invention, as shown in Fig. 1-Fig. Rectangular through-holes are provided between the two opposite sides as shown in the upper and lower sides, and at the positions directly opposite to the upper and lower sides.

Thus, the air in the inner chamber 100 can communicate with the outside air through the first through hole 111 and the second through hole 121, so that the heat exchange efficiency between the air in the inner chamber 100 and the outside air can be improved, which in turn is beneficial to the battery. Package 1 for heat dissipation and cooling. It should be noted that the "outside" mentioned here refers to the outside of the housing 10 relative to the inner chamber 100 (as shown in FIG. Structural spaces, such as air ducts.

As shown in FIGS. 1-2 and 4 , in some embodiments of the present invention, in the direction from the first side wall 110 to the second side wall 120 , the battery 20 and the heat dissipation assembly 30 are arranged side by side. For example, in one embodiment of the present invention, as shown in FIG. 1-FIG. 2 and FIG. In the vertical direction shown, the heat dissipation assembly 30 is located directly above the battery 20 , the heat dissipation assembly 30 is close to the second side wall 120 , and the battery 20 is close to the first side wall 110 . In this way, the range and effect of the cooling assembly 30 on the battery 20 can be improved, thereby reducing the temperature of the battery pack 1 .

Further, in the direction from the first through hole 111 to the second through hole 121 , the battery 20 and the heat dissipation assembly 30 are arranged side by side. Furthermore, the center of the first through hole 111 , the center of the second through hole 121 , the center of the battery 20 and the center of the heat dissipation component 30 are collinear. Thereby, the heat radiation effect can be improved.

As shown in FIG. 1-FIG. 2 and FIG. 4, in some examples of the present invention, there are multiple first through holes 111 and multiple second through holes 121, and multiple first through holes 111 and multiple second through holes The holes 121 correspond one to one. It can be understood that the first side wall 110 is provided with a plurality of first through holes 111 , and the second side wall 120 is provided with a plurality of second through holes 121 opposite to the plurality of first through holes 111 . Thus, the plurality of first through holes 111 and the plurality of second through holes 121 can communicate with the inner chamber 100 of the housing 10 and the outside of the housing 10 , thereby improving the heat exchange rate of the air. Further, a plurality of first through holes 111 are evenly distributed on the first side wall 110 . In this way, the heat exchange between the air in different regions of the inner chamber 100 and the outside air of the casing 10 can be balanced, thereby avoiding the situation that the local temperature in the inner chamber 100 is too high.

As shown in FIG. 1 , according to some embodiments of the present invention, the heat dissipation component 30 may be a wind wheel 310 . When the battery pack 1 is inserted into the vacuum cleaner to work, the wind wheel 310 can form flowing air in the inner chamber 100, and the flowing air can pass through the first through hole 111 and the second through hole 121, thereby speeding up cleaning of the battery. The heat dissipation of the battery 20 prevents the battery 20 from entering temperature protection immediately in the case of rapid discharge, thereby prolonging the discharge time of the battery 20 and prolonging the working time of the vacuum cleaner.

As shown in FIG. 2 , according to still other embodiments of the present invention, the heat dissipation assembly 30 may be a heat dissipation fin 320 , one end of the heat dissipation fin 320 is connected to the battery 20 , and the other end of the heat dissipation fin 320 extends toward the casing 10 . It can be understood that one end of the heat sink 320 is in direct contact with the battery 20 , and the other end of the heat sink 320 extends toward the side wall of the casing 10 . For example, as shown in FIG. 2 , one end of the heat sink 320 is connected to the battery 20 , and the other end of the heat sink 320 extends toward the second side wall 120 .

The heat sink 320 is a device for dissipating heat from electronic components that are prone to heat, and can be made of aluminum alloy, brass or bronze. When the battery 20 works and generates heat, it can quickly transfer the heat to the heat sink 320, and the heat sink 320 can transfer the heat to the air near the side wall of the casing 10, so that the temperature of the battery 20 itself will not rise too fast, and at the same time shorten the temperature of the battery 20. Waiting time for cooling the battery 20 during charging.

As shown in FIG. 2 , according to a further embodiment of the present invention, the other end of the heat sink 320 has a plurality of spaced grooves 321 . It can be understood that, the end of the heat sink 320 away from the battery 20 is provided with a plurality of spaced apart grooves 321 . Thus, the air volume in the battery pack 1 can be increased, and the heat of the cooling fin 320 can be transferred out through the air in the groove 321 , thereby improving the heat exchange efficiency. Further, the plurality of grooves 321 are evenly distributed, so that the heat exchange rate between the cooling fins 320 and the air can be balanced. It should be noted that the shape of the groove 321 is not specifically limited, and may be rectangular, U-shaped, or arc-shaped.

As shown in FIG. 3 , according to some further embodiments of the present invention, the heat dissipation component 30 may be a heat dissipation silica gel layer 330 , and the heat dissipation silica gel layer 330 is wrapped around the periphery of the battery 20 . Thermal silica gel is a thermally conductive material with low thermal resistance, high thermal conductivity, and high flexibility. The high flexibility of this material can reduce the pressure on the battery 20, and at the same time cover the uneven surface of the battery 20 so that the battery 20 can fully contact with the heat dissipation silicone layer 330 to improve the heat conduction efficiency, which can meet the heat conduction of the battery pack 1 with limited space need. When the temperature of the battery pack 1 rises to a certain value during operation, the shape change of the heat dissipation silica gel layer 330 can be used to absorb heat from the battery 20, and a large amount of heat can be stored in the heat dissipation silica gel layer 330 to lower the temperature of the battery 20. .

As shown in FIG. 4 , according to other embodiments of the present invention, the heat dissipation component 30 may be a semiconductor heat sink 340 . The semiconductor radiator 340 has high reliability and no refrigerant pollution, so it can be applied in some limited spaces. Utilizing the Peltier effect of semiconductor materials, when direct current passes through a galvanic couple formed by two different semiconductor materials in series, heat can be absorbed and released at both ends of the galvanic couple respectively. The heat-absorbing end of the galvanic couple is arranged in the battery pack 1, and the heat of the battery 20 can be absorbed by the cooling of the semiconductor to achieve the purpose of cooling down.

As shown in FIGS. 1-4 , according to some examples of the present invention, there are multiple batteries 20 spaced apart. It can be understood that a plurality of batteries 20 are distributed at intervals between the first side wall 110 and the second side wall 120 . For example, in one embodiment of the present invention, as shown in FIGS. 1-4 , a plurality of battery 20 are arranged in sequence, and the intervals between the plurality of batteries 20 are uniform. Thus, the capacity of the battery pack 1 can be increased, and the discharge time of the battery pack 1 can be extended, thereby increasing the use time of the vacuum cleaner.

The vacuum cleaner according to the embodiment of the present invention includes the battery pack 1 of the vacuum cleaner according to any one of the above items.

According to the battery pack 1 of the vacuum cleaner in the embodiment of the present invention, by setting the heat dissipation assembly 30 in the housing 10 of the battery pack 1, the heat generated by the battery 20 can be dissipated, and the temperature in the battery pack 1 can be reduced, so that the battery 20 can Working in a suitable temperature range, the performance of the battery 20 can be maximized, thereby prolonging the service life of the battery 20 and improving the working time and working efficiency of the vacuum cleaner. At the same time, rapid heat dissipation can also reduce the waiting time for charging after use.

According to some embodiments of the present invention, the battery pack 1 may be located in the air duct of the vacuum cleaner. As a result, the air duct in the vacuum cleaner and the air in the inner chamber 100 can be used to form a convective passage to accelerate the air flow rate, thereby improving the heat exchange rate between the air in the inner chamber 100 and the air in the air duct, thereby improving the performance of the battery. Thermal efficiency of package 1.

A vacuum cleaner according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1-4 . It should be understood that the following description is only an illustration rather than a specific limitation to the present invention.

As shown in FIG. 1 , a vacuum cleaner according to an embodiment of the present invention includes a battery pack 1 , a dust cup assembly, an air duct, a motor, and the like. The battery pack 1 includes a casing 10 , five batteries 20 and a wind wheel 310 .

Specifically, the battery pack 1 can be located in the air duct of the vacuum cleaner, and the battery pack 1 includes a casing 10 , five batteries 20 and a wind wheel 310 . As shown in Figure 1, the housing 10 can be in the shape of a cuboid, and the housing 10 is formed with an inner chamber 100, and the housing 10 has two opposite side walls in the up and down direction (the up and down direction as shown in Figure 1), respectively The first side wall 110 and the second side wall 120 . A plurality of first through holes 111 may be provided on the first side wall 110, and the intervals between any two adjacent first through holes 111 are equal. A plurality of second through holes 121 opposite to the plurality of first through holes 111 are formed on the second side wall 120, and the second through holes 121 can communicate the inner chamber 100 of the casing 10 with the air duct. Between the first side wall 110 and the second side wall 120 and in a direction parallel to the extension direction of the first side wall 110, five batteries 20 are arranged in sequence, and the five batteries 20 are all cylindrical lithium-ion batteries 20, The wind wheel 310 is located right above the five batteries 20 (the top as shown in FIG. 1 ).

When the battery pack 1 is inserted into the vacuum cleaner to work, the wind wheel 310 can form flowing air in the inner chamber 100, and the flowing air can pass through the first through hole 111 and the second through hole 121 to communicate with the air duct, which can Utilize the air duct in the vacuum cleaner and the air in the inner chamber 100 to form a convection channel to accelerate the air flow rate, thereby improving the heat exchange rate between the air in the inner chamber 100 and the air in the air duct, and improving the heat dissipation efficiency of the battery pack 1 , so that the battery 20 will not immediately enter the temperature protection in the case of rapid discharge, thereby prolonging the discharge time of the battery 20 and improving the working time of the vacuum cleaner.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (12)

1. A battery pack for a vacuum cleaner, comprising: case; a battery located within the housing; and A heat dissipation assembly for dissipating heat from the battery, the heat dissipation assembly is located in the housing. 2. The battery pack of a vacuum cleaner according to claim 1, wherein the two opposite side walls of the housing are a first side wall and a second side wall, and the first side wall has a first through hole. hole, the second side wall has a second through hole, the first through hole is opposite to the second through hole, the battery and the heat dissipation assembly are located on the first side wall and the second through hole between the side walls. 3 . The battery pack of a vacuum cleaner according to claim 2 , wherein, in a direction from the first side wall to the corresponding second side wall, the battery and the heat dissipation assembly are arranged side by side. 4 . 4. The battery pack of a vacuum cleaner according to claim 2, wherein the first through hole and the second through hole are multiple, and the plurality of first through holes and the plurality of the first through holes The second through holes are in one-to-one correspondence. 5. The battery pack of a vacuum cleaner according to claim 1, wherein the heat dissipation component is a wind wheel. 6. The battery pack of a vacuum cleaner according to claim 1, wherein the heat dissipation component is a heat dissipation fin, one end of the heat dissipation fin is connected to the battery, and the other end of the heat dissipation fin faces the housing extend. 7 . The battery pack of a vacuum cleaner according to claim 6 , wherein the other end of the heat sink has a plurality of spaced apart grooves. 8 . The battery pack of a vacuum cleaner according to claim 1 , wherein the heat dissipation component is a heat dissipation silica gel layer, and the heat dissipation silica gel layer is wrapped around the periphery of the battery. 9. The battery pack of a vacuum cleaner according to claim 1, wherein the heat dissipation component is a semiconductor heat sink. 10 . The battery pack of a vacuum cleaner according to claim 1 , wherein the batteries are a plurality of spaced apart ones. 11 . 11. A vacuum cleaner, characterized by comprising the battery pack of the vacuum cleaner according to any one of claims 1-10. 12. The vacuum cleaner according to claim 1, wherein the battery pack is located in the air duct of the vacuum cleaner.