Vortex cooling assembly and dust collector

Abstract

The utility model relates to the technical field of battery pack cooling, and discloses a vortex cooling component, which comprises an air guide pipe, a cold air pipe, a hot air pipe and the like, high-pressure airflow tangentially enters a vortex chamber through a vortex air inlet duct, is accelerated by a vortex plate and then quickly rotates in the vortex chamber to form free vortex, and the free vortex is converted by internal energy to form the vortex cooling component. Cold air is generated at the cold air outlet end, and hot air is generated at the hot air outlet end; the utility model further discloses a dust collector adopting the vortex cooling assembly, when the motor assembly works, high-pressure airflow generated in a motor air outlet chamber can achieve cold and hot air separation through the vortex cooling assembly, generated cold air is guided into the battery pack assembly to cool and dissipate heat of a battery pack in the battery pack assembly, and the lithium electrochemical reaction rate is reduced, so that the lithium battery pack is cooled. According to the dust collector, the battery pack is cooled, the endurance time is prolonged, heated air is exhausted to the external environment, the cost of cooling the battery pack by the dust collector is low, and the dust collector has a good cooling effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack cooling technical field, concretely relates to a vortex cooling assembly and dust collector. BACKGROUND

[0002] With the development of science and technology, many household appliances have got rid of the shackles of power lines, making them more convenient and flexible to operate. For example, wireless handheld dust collectors mainly rely on battery packs for power supply to drive vacuum motors to rotate at high speed, forming negative pressure inside the dust collector. This negative pressure can generate strong suction force, which can suck dust, garbage, hair and other debris into the dust cup of the dust collector through the suction head.

[0003] If the dust collector continues to work at high power, the heat generated by the battery pack will continue to accumulate. Since the heat dissipation speed of the battery pack is limited to a certain extent, the temperature of the battery pack will gradually rise over time. For example, when cleaning a large area of carpet, if the dust collector is always in high power mode, the temperature inside the battery pack may rise by ten or more degrees Celsius within a few minutes or even higher.

[0004] When the temperature of the battery pack rises, the activity of the chemicals inside it will also change. For lithium batteries, too high a temperature can cause the decomposition rate of the electrolyte inside the battery to increase, not only further exacerbating the heating of the battery, but also reducing the performance and life of the battery. Moreover, too high a temperature can also cause safety problems in the battery pack, such as battery bulging, even fire and explosion, and other dangerous situations. SUMMARY

[0005] The utility model aims at overcoming the defects in the prior art, and provides a vortex cooling assembly. High-pressure airflow enters the vortex chamber tangentially through the vortex inlet air duct to form a free vortex by rapid rotation. Through internal energy conversion, cold air is generated at the cold air outlet end, and hot air is generated at the hot air outlet end. The generated cold air is discharged into the battery pack to cool and dissipate heat for the battery pack inside.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] A vortex cooling assembly, comprising a guide pipe, an inner cavity and a vortex air inlet channel are formed in the guide pipe, a cold air pipe and a hot air pipe are oppositely arranged in the inner cavity, and a vortex chamber is formed between the opposite ends of the two pipes and the side wall of the inner cavity; an air inlet hole is formed in the side wall of the inner cavity, one end of the vortex air inlet channel is provided with a vortex air inlet, and the other end is in tangential communication with the vortex chamber through the air inlet hole; a cold end air channel is formed in the cold air pipe, one end of the cold end air channel is provided with a vortex plate for generating free vortex, the other end is provided with a cold air outlet, the vortex plate is located in the vortex chamber, and the cold end air channel is in communication with the vortex chamber through the vortex plate; a hot end air channel is formed in the hot air pipe, one end of the hot end air channel is in communication with the vortex chamber, and the other end is provided with a hot air outlet, a vortex block is inserted at the center of the hot end air channel, and the inner diameter of the hot end air channel is larger than that of the cold end air channel.

[0008] Optionally, the vortex plate comprises a plate body connected with the cold air pipe, a through hole is formed at the center position of the plate body and in communication with the cold end air channel, and a plurality of protruding vortex blocks are arranged at the edge of the plate body and distributed in a circumferential array around the axis of the cold air pipe.

[0009] A dust collector adopting a vortex cooling assembly, comprising a body assembly, a motor assembly, a battery pack assembly and a vortex cooling assembly, the vortex cooling assembly, the motor assembly and the battery pack assembly are all mounted on the body assembly, and the vortex cooling assembly is located between the motor assembly and the battery pack assembly.

[0010] Optionally, the motor assembly comprises a motor air outlet chamber, the battery pack assembly comprises a shell connected with the body assembly, a battery pack is mounted in the shell, and a battery pack air inlet and a battery pack air outlet are formed in the shell; the vortex air inlet and the hot air outlet of the vortex cooling assembly are in communication with the motor air outlet chamber, and the cold air outlet of the vortex cooling assembly is in communication with the battery pack air inlet.

[0011] Optionally, a vortex air outlet channel is arranged on the guide pipe, the hot air outlet is in communication with the motor air outlet chamber through the vortex air outlet channel, and vortex air outlets are arranged at both ends of the vortex air outlet channel and in communication with the outside.

[0012] Optionally, the lower end of the vortex block is embedded in the hot end air channel, the upper end of the vortex block is located at the bottom of the motor air outlet chamber, and the radial dimension of the vortex block increases from bottom to top.

[0013] Optionally, the body assembly comprises a handle, the two ends of the handle are respectively connected with the motor assembly and the battery pack assembly, and the vortex cooling assembly is mounted in the handle.

[0014] Optionally, the fuselage assembly comprises a handle, a support rod is arranged on the front side of the handle, two ends of the support rod are connected with the motor assembly and the battery pack assembly respectively, and the vortex cooling assembly is installed inside the support rod.

[0015] Optionally, a sealing ring for sealing and isolating the vortex air inlet duct and the vortex air outlet duct is arranged on the top of the air guide pipe.

[0016] Optionally, the cold air pipe is located below the hot air pipe, and the cold end air duct and the hot end air duct are coaxial with the inner cavity.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) the high-pressure airflow enters the vortex chamber tangentially through the vortex air inlet duct, rotates rapidly in the vortex chamber after being accelerated by the vortex plate to form a free vortex, and generates cold air at the cold air outlet end and hot air at the hot air outlet end through internal energy conversion; the component has a simple and ingenious structure, and can separate cold and hot air by using the mechanical structure itself, has low use cost, and the generated cold air can cool and heat the corresponding components;

[0019] (2) the high-pressure airflow generated in the motor air outlet chamber when the motor assembly works can be separated into cold and hot air through the vortex cooling assembly, the generated cold air is introduced into the battery pack assembly to cool the battery pack, the lithium battery chemical reaction rate is reduced, the endurance time is increased, and the heated air is discharged to the external environment;

[0020] (3) in order to avoid that the high-pressure airflow in the motor air outlet chamber enters the hot end air duct to affect the discharge effect of the hot air, the two ends of the vortex block are located inside the motor air outlet chamber and the hot end air duct respectively, and the radial dimension of the vortex block increases from bottom to top, so that the high-pressure airflow in the motor air outlet chamber can pass through the periphery and enter the vortex air inlet duct without affecting the discharge of the hot air from the hot end air duct. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of the vortex cooling assembly of the utility model embodiment;

[0022] Figure 2 is a structure schematic view of the vortex cooling assembly of the utility model embodiment;

[0023] Figure 3 is a structure schematic view of the vortex plate in the utility model embodiment;

[0024] Figure 4is a structural schematic diagram of the dust collector with the vortex cooling assembly according to an embodiment of the utility model;

[0025] Figure 5 is an explosion structural schematic diagram of the dust collector according to an embodiment of the utility model;

[0026] Figure 6 is an internal structural schematic diagram of the dust collector according to an embodiment of the utility model;

[0027] Figure 7 is a position structural schematic diagram of the vortex cooling assembly and the dust collector according to an embodiment of the utility model;

[0028] 1, air guide pipe; 101, vortex air inlet duct; 102, air inlet hole; 103, vortex air inlet; 104, vortex air outlet duct; 105, vortex air outlet;

[0029] 2, cold air pipe; 201, cold end air duct; 202, cold air outlet;

[0030] 3, vortex plate; 301, plate body; 302, through hole; 303, vortex block;

[0031] 4, hot air pipe; 401, hot end air duct; 402, hot air outlet; 5, vortex chamber;

[0032] 6, machine body assembly; 601, handle;

[0033] 7, motor assembly; 701, motor air outlet chamber; 702, vortex block; 8, dust cup assembly;

[0034] 9, battery pack assembly; 901, battery pack air inlet; 902, battery pack air outlet; 903, shell;

[0035] 10, sealing ring. DETAILED DESCRIPTION

[0036] The utility model will be explained further in detail in combination with the drawings and embodiments, these drawings are all simplified schematic diagram, only with the schematic way the basic structure of the utility model is explained, therefore it only shows the constitution related with the utility model.

[0037] Embodiment one, such as Figures 1-3As shown, a vortex cooling assembly comprises a guide pipe 1, an inner cavity and a vortex air inlet duct 101 are arranged in the guide pipe 1, a cold air pipe 2 and a hot air pipe 4 are oppositely arranged in the inner cavity, and a vortex chamber 5 is formed between the opposite ends of the two pipes and the side wall of the inner cavity; an air inlet hole 102 is arranged on the side wall of the inner cavity, one end of the vortex air inlet duct 101 is provided with a vortex air inlet 103, and the other end is in tangential communication with the vortex chamber 5 through the air inlet hole 102; the inner part of the cold air pipe 2 is provided with a cold end air duct 201, one end of the cold end air duct 201 is provided with a vortex plate 3 for generating free vortex, and the other end is provided with a cold air outlet 202, the vortex plate 3 is located in the vortex chamber 5, and the cold end air duct 201 is in communication with the vortex chamber 5 through the vortex plate 3; the inner part of the hot air pipe 4 is provided with a hot end air duct 401, one end of the hot end air duct 401 is in communication with the vortex chamber 5, and the other end is provided with a hot air outlet 402, a vortex block 702 is inserted at the center of the hot end air duct 401, and the inner diameter of the hot end air duct 401 is larger than that of the cold end air duct 201.

[0038] The high-pressure airflow enters the vortex air inlet duct 101 through the vortex air inlet 103, and then enters the vortex chamber 5 along the tangent direction of the vortex chamber 5 through the air inlet hole 102, and the airflow is accelerated when passing through the vortex plate 3, and the accelerated airflow rapidly rotates in the vortex chamber 5 to form a free vortex, and through internal energy conversion, cold air is generated at one end and hot air is generated at the other end.

[0039] The high-pressure airflow entering the vortex chamber 5 through the air inlet hole 102 rapidly rotates to form a free vortex under the action of the vortex plate 3, and diffuses upward along the hot end air duct 401 with a larger caliber, and the airflow near the center part is rubbed with the outer layer airflow due to the large angular velocity of rotation, and the energy is transferred to the outer layer airflow, so that the energy of the airflow near the center part is weakened, the speed is slowed down, and the temperature is lowered.

[0040] The air near the pipe wall not only obtains the energy of the air in the center part, but also rubs with the pipe wall, so that the temperature continues to rise and the speed increases, thereby becoming hot air and being sprayed out; the air in the inner layer center with low temperature is blocked by the vortex block 702 in the hot end air duct 401 when advancing together with the hot air, and then rebounds and turns, enters the cold end air duct 201, and flows out through the cold air outlet 202, so as to realize the separation of cold air and hot air.

[0041] The vortex cooling assembly has a simple and ingenious structure, and can separate cold air and hot air from high-pressure airflow through its own mechanical structure, has low use cost, and the generated cold air can cool and heat the corresponding parts.

[0042] The vortex plate 3 includes a plate body 301 connected with the cold air pipe 2, a through hole 302 is arranged at the center of the plate body 301 and is communicated with the cold end air duct 201, and a plurality of protruding vortex blocks 303 are arranged at the edge of the plate body 301 and are distributed in a circumferential array around the axis of the cold air pipe 2.

[0043] The interval distance between the adjacent two vortex blocks 303 is smaller than the diameter of the air inlet hole 102, and the vortex blocks 303 on the plate body 301 are distributed in a vortex shape on the side of the through hole 302, the high-pressure airflow enters the vortex chamber 5, passes through the interval, increases the flow rate, and then enters the free vortex through the guidance of the side of the vortex block 303; after the cold air and the hot air are separated, the cold air blocked by the rebound passes through the through hole 302 and enters the cold end air duct 201.

[0044] In the embodiment two, on the basis of the embodiment one, the utility model also proposes a dust collector using vortex cooling assembly, the dust collector originally directly discharged high-pressure airflow is separated into cold and hot air through the vortex cooling assembly, the cold air is guided into the battery pack, and the lithium battery is cooled and cooled, and the hot air is discharged to the outside environment.

[0045] As shown in Figures 5-7 A dust collector using vortex cooling assembly, including body assembly 6, the body assembly 6 is installed motor assembly 7, battery pack assembly 9 and vortex cooling assembly, the motor assembly 7 is connected with dust cup assembly 8, the vortex cooling assembly is located between the motor assembly 7 and the battery pack assembly 9, and the hot air end of the vortex cooling assembly is connected with the motor assembly 7, and the cold air end is connected with the battery pack assembly 9.

[0046] The battery pack assembly 9 is used to provide power to the motor assembly 7, and the motor assembly 7 generates vacuum negative pressure suction after being electrified, and the external dirt is sucked into the dust cup assembly 8, and the dirt and airflow are separated, the dust cup assembly 8 is prior art, so here is not too much.

[0047] The motor assembly 7 includes a shell, a vacuum motor is installed in the inside of the shell, and the vacuum motor generates high-pressure airflow to form negative pressure suction when working, and the generated high-pressure airflow first enters the motor air outlet chamber 701; the battery pack assembly 9 includes a shell 903 connected with the body assembly 6, a battery pack is installed in the inside of the shell 903, the existing battery pack is mostly composed of lithium battery, and the shell 903 is provided with a battery pack air inlet 901 and a battery pack air outlet 902.

[0048] The body assembly 6 is mainly used for mounting the motor assembly 7 and the battery pack assembly 9; wherein the cold air pipe 2 is located below the hot air pipe 4, the cold end air duct 201 and the hot end air duct 401 are coaxial with the inner cavity; the vortex air inlet 103 and the hot air outlet 402 are in communication with the motor air outlet chamber 701, and the cold air outlet 202 is in communication with the battery pack air inlet 901; therefore, the high-pressure airflow in the motor air outlet chamber 701 can enter the vortex air inlet duct 101 through the vortex air inlet 103, after the cold-hot air separation by the vortex cooling assembly, the cold air enters the inside of the shell 903 through the cold air outlet 202 and the battery pack air inlet 901, and is discharged from the battery pack air outlet 902 after heat exchange with the battery pack inside, so as to achieve the purpose of cooling and heat dissipation of the battery pack.

[0049] In order to improve the cooling effect, the battery pack air inlet 901 and the battery pack air outlet 902 are arranged at the top and the bottom of the shell 903 respectively, so as to prolong the path of the cold air in the shell 903 and improve the cooling effect.

[0050] Further, the vortex air outlet duct 104 is arranged on the air guide pipe 1, the hot air outlet 402 is in communication with the motor air outlet chamber 701 through the vortex air outlet duct 104, and both ends of the vortex air outlet duct 104 are further provided with vortex air outlets 105 in communication with the outside.

[0051] After the cold-hot air separation of the high-pressure airflow by the vortex cooling assembly, the hot air enters the vortex air outlet duct 104 through the hot air outlet 402 along the hot end air duct 401, and then is discharged to the outside of the product through the air outlet grating on the shell along the vortex air outlet duct 104 through the vortex air outlets 105 at both ends.

[0052] In order to prevent leakage between the vortex air inlet duct 101 and the vortex air outlet duct 104, affecting the separation effect of cold-hot air, the sealing ring 10 is arranged at the top of the air guide pipe 1, and the sealing ring 10 is used for sealing and isolating the vortex air inlet duct 101 and the vortex air outlet duct 104.

[0053] In order to prevent the high-pressure airflow from entering the hot end air duct 401 from the motor air outlet chamber 701, affecting the discharge of the hot air, the lower end of the vortex block 702 is embedded in the hot end air duct 401, the upper end of the vortex block 702 is located at the bottom of the motor air outlet chamber 701, and the radial dimension of the vortex block 702 increases from bottom to top. In this way, the high-pressure airflow in the motor air outlet chamber 701 can pass through the surrounding and enter the vortex air inlet duct 101, without affecting the upward discharge of the hot air from the hot end air duct 401.

[0054] In the third embodiment, the body assembly 6 comprises a handle 601, and the two ends of the handle 601 are connected with the motor assembly 7 and the battery pack assembly 9 respectively, so as to facilitate the user to hold the handle 601, and the eddy current cooling assembly is arranged in the handle 601 and connected with the motor assembly 7 and the battery pack assembly 9 respectively, so as to not occupy extra space and not be different from the conventional cleaner in appearance.

[0055] In the fourth embodiment, the body assembly 6 comprises a handle 601, and the two ends of the handle 601 are connected with the motor assembly 7 and the battery pack assembly 9 respectively, that is, the motor assembly 7 and the battery pack assembly 9 are connected through the handle 601, and in order to improve the stability of the connection between the motor assembly 7 and the battery pack assembly 9, a support rod is arranged on the front side of the handle 601, and the two ends of the support rod are also connected with the motor assembly 7 and the battery pack assembly 9 respectively, so as to mainly play a supporting role and make the structure of the body assembly 6 more stable.

[0056] At this time, the eddy current cooling assembly can be arranged in the support rod and also can satisfy the cooling of the battery pack and not occupy extra space.

[0057] That is to say, when the body assembly 6 of the cleaner has the handle 601 and the support rod, the eddy current cooling assembly can be arranged in the handle 601 or the support rod, the two ends of the eddy current cooling assembly arranged in the support rod are also connected with the motor assembly 7 and the battery pack assembly 9 respectively, and only the hot air outlet of the eddy current cooling assembly and the eddy current air inlet 103 are connected with the motor air outlet chamber 701, and the cold air outlet 202 and the battery pack air inlet 901 are connected, so as to improve the cooling effect of the battery pack.

[0058] In conclusion, the utility model provides a kind of eddy current cooling assembly, cold and hot air can be separated from high pressure airflow, and make it flow in different directions;Also propose a kind of cleaner using eddy current cooling assembly, to improve the cooling effect of the battery pack, improve the performance and life of battery, the eddy current cooling assembly here can be arranged in the handle 601 of cleaner, also can be arranged in the support rod of the front side of handle 601, compared with conventional cleaner, it can improve the cooling effect of the battery pack, and not too much space, applicable to different types of cleaner, and cooling cost is low.

[0059] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0060] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0061] According to the ideal embodiments of the utility model, the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A vortex cooling assembly, characterized in that: The air guide duct (1) comprises an inner cavity and a vortex air inlet duct (101) formed therein, a cold air duct (2) and a hot air duct (4) being arranged opposite to each other in the inner cavity, and a vortex chamber (5) is formed between the opposite ends of the cold air duct and the side wall of the inner cavity; An air inlet hole (102) is provided on the side wall of the inner cavity, a vortex air inlet port (103) is provided at one end of the vortex air inlet duct (101), and the other end is tangentially connected to the vortex chamber (5) through the air inlet hole (102); A cold end air duct (201) is provided inside the cold air duct (2), a vortex plate (3) for generating a free vortex is provided at one end of the cold end air duct (201), and a cold air outlet (202) is provided at the other end, the vortex plate (3) is located in the vortex chamber (5), and the cold end air duct (201) is connected to the vortex chamber (5) via the vortex plate (3); A hot end air duct (401) is provided inside the hot air pipe (4), one end of the hot end air duct (401) is communicated with the vortex chamber (5), and the other end is provided with a hot air outlet (402), a vortex block (702) is inserted at the center of the hot end air duct (401), and the inner diameter of the hot end air duct (401) is larger than the inner diameter of the cold end air duct (201).

2. The eddy current cooling assembly according to claim 1, characterized in that: The vortex plate (3) comprises a plate body (301) connected to the cold air pipe (2), a through hole (302) communicating with the cold end air duct (201) is provided at the center of the plate body (301), and a plurality of protruding vortex blocks (303) are provided at the edge of the plate body (301), and the plurality of vortex blocks (303) are distributed in a circular array around the axis of the cold air pipe (2) on the circumference of the through hole (302).

3. A vacuum cleaner using the vortex cooling assembly according to any one of claims 1 to 2, characterized in that: The invention comprises a body assembly (6), a motor assembly (7), a battery pack assembly (9) and an eddy current cooling assembly, wherein the eddy current cooling assembly, the motor assembly (7) and the battery pack assembly (9) are all mounted on the body assembly (6), and the eddy current cooling assembly is located between the motor assembly (7) and the battery pack assembly (9).

4. The vacuum cleaner according to claim 3, characterized in that: The motor assembly (7) includes a motor air outlet chamber (701), the battery pack assembly (9) includes a shell (903) connected to the fuselage assembly (6), a battery pack is installed inside the shell (903), and a battery pack air inlet (901) and a battery pack air outlet (902) are provided on the shell (903); The vortex air inlet (103) and the hot air outlet (402) of the vortex cooling assembly are both in communication with the motor air outlet chamber (701), and the cold air outlet (202) of the vortex cooling assembly is in communication with the battery pack air inlet (901).

5. The vacuum cleaner according to claim 4, characterized in that: The air guide pipe (1) is provided with a vortex outlet duct (104), the hot air outlet (402) is connected to the motor air outlet chamber (701) through the vortex outlet duct (104), and vortex outlets (105) connected to the outside are also provided at both ends of the vortex outlet duct (104).

6. The vacuum cleaner according to claim 5, characterized in that: The lower end of the vortex stopper (702) is embedded in the hot end air duct (401), the upper end of the vortex stopper (702) is located at the bottom of the motor air outlet chamber (701), and the radial size of the vortex stopper (702) increases from bottom to top.

7. The vacuum cleaner according to claim 3, characterized in that: The body assembly (6) includes a handle (601), two ends of the handle (601) are respectively connected to the motor assembly (7) and the battery pack assembly (9), and the eddy current cooling assembly is installed inside the handle (601); or, The fuselage assembly (6) includes a handle (601), a support rod is provided on the front side of the handle (601), two ends of the support rod are respectively connected to the motor assembly (7) and the battery pack assembly (9), and the eddy current cooling assembly is installed inside the support rod.

8. The vacuum cleaner according to claim 5, characterized in that: A sealing ring (10) is provided at the top of the air guide pipe (1) for sealing and isolating the vortex air inlet duct (101) and the vortex air outlet duct (104).

9. The vacuum cleaner according to any one of claims 4 to 8, characterized in that: The cold air pipe (2) is located below the hot air pipe (4), and the cold end air duct (201) and the hot end air duct (401) are both coaxial with the inner cavity.

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