The application is a divisional application with the application date of '2020.07.27', the application number of '202010734600.6' and the application name of 'mobile air conditioner'.
Background
In the related art, an air duct of a mobile air conditioner is generally installed at a rear end of a cabinet. When the mobile air conditioner runs, the air pipe can block the air inlet at the rear end of the shell after being installed, and the air inlet amount entering the air outlet shell is influenced; especially, when the mobile air conditioner is mounted close to a wall, the air inlet resistance of the air inlet is very large, and the air inlet volume is influenced, so that the heat exchange capacity and the actual heat exchange effect of the mobile air conditioner are influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a mobile air conditioner, which is characterized in that a second air inlet communicated with a heat exchanger is additionally arranged on a shell to realize supplementary air inlet, so that the heat exchange capacity and the heat exchange effect of the mobile air conditioner are improved.
The mobile air conditioner according to the embodiment of the invention comprises: the shell comprises an upper shell and a lower shell, wherein the upper shell is provided with a first air inlet; the lower shell is arranged in a protruding mode backwards relative to the upper shell, and a second air inlet is formed in the lower shell; the air outlet shell is arranged in the shell, and the inlet of the air outlet shell is provided with a heat exchanger; the first air inlet is communicated with the heat exchanger and is provided with a first air inlet channel, and the second air inlet is communicated with the heat exchanger and is provided with a second air inlet channel.
The mobile air conditioner provided by the embodiment of the invention at least has the following beneficial effects:
through add the second air intake at the lower casing of casing to form the second inlet air channel with the second air intake intercommunication in the casing, the air that the second air intake got into can guide to the heat exchanger in, as the supplementary air inlet to the first air intake of casing, thereby increased the heat transfer amount of wind of heat exchanger, improved the heat transfer effect of mobile air conditioner, increased the air output of air-out casing moreover.
According to some embodiments of the invention, the second air inlet is located on the top wall, the top wall is provided with a mounting portion for fixing the air pipe, and the second air inlet is arranged along the periphery of the mounting portion
According to some embodiments of the invention, the second air intake opening comprises a plurality of uniformly arranged through holes.
According to some embodiments of the invention, the second air inlet is located in the top wall and is disposed along a periphery of the mounting portion.
According to some embodiments of the invention, the diameter of the largest inscribed circle which can be formed inside the second air inlet is d, and d satisfies: d is more than 0 and less than or equal to 8 mm.
According to some embodiments of the present invention, the mobile air conditioner further includes a middle partition board, the middle partition board is disposed in the casing, the second air intake channel is formed between the middle partition board and the lower casing, and the second air intake is located above the middle partition board.
According to some embodiments of the invention, the mobile air conditioner further comprises a wind guide device located in the lower shell, an installation part for fixing a wind pipe is arranged at the upper part of the lower shell, two ends of the wind guide device are respectively connected with the middle partition plate and the installation part, the outer wall of the wind guide device is streamline, and the second air inlet channel is formed among the wind guide device, the middle partition plate and the lower shell.
According to some embodiments of the present invention, the first air inlet is detachably connected with a first filter assembly, and the first filter assembly is used for filtering air entering from the first air inlet.
According to some embodiments of the present invention, a second filter assembly is disposed in the lower casing, and the second filter assembly is located in the second air inlet channel and is configured to filter air entering from the second air inlet.
According to some embodiments of the invention, the second filter assembly and the first filter assembly are a single piece.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, 4 and 5, the mobile air conditioner according to an embodiment of the present invention includes a casing 100 and an air outlet casing 200, where the air outlet casing 200 is installed in the casing 100, the air outlet casing 200 has an air inlet 210 and an air outlet 220, the air inlet 210 is provided with a heat exchanger 300, the air outlet casing 200 is provided with an air supply mechanism 400 at the air outlet 220, the air outlet casing 200 is internally provided with a wind wheel (not shown in the figure), the wind wheel drives air in an indoor environment to pass through the heat exchanger 300, the heat exchanger 300 exchanges heat with the air to implement cooling or heating of the air, the air after heat exchange enters the air outlet casing 200 and is blown out to the indoor environment through the air supply mechanism 400 to implement adjustment of an indoor environment temperature.
Referring to fig. 1 and 3, the casing 100 includes an upper casing 110, the upper casing 110 is provided with a first air inlet 111, the first air inlet 111 is communicated with the external environment, the first air inlet 111 is a main air inlet of the mobile air conditioner, the first air inlet 111 is communicated with the heat exchanger 300, and a first air inlet channel is formed as a main air inlet channel of the air outlet casing 200, for allowing air of the external environment to enter the heat exchanger 300 for heat exchange. When the mobile air conditioner operates in a refrigerating mode, the wind wheel in the air outlet shell 200 rotates to drive air to enter the machine shell 100 from the first air inlet 111 and exchange heat through the heat exchanger 300, and the air after heat exchange is blown out from the air supply mechanism 400 under the guiding action of the wind wheel to adjust the temperature of the external environment.
Referring to fig. 1, 2 and 3, in the mobile air conditioner according to an embodiment of the present invention, the casing 100 further includes a lower casing 120, and the lower casing 120 and the upper casing 110 may be manufactured in an integral molding manner, for example, in an integral injection molding manner. The lower case 120 is protruded rearward with respect to the upper case 110, and a mounting portion 122 is provided at an upper portion of the lower case 120, and the mounting portion 122 is used to fix the air duct 500. Since the installation position of the air duct 500 of the mobile air conditioner of this embodiment is fixed behind the first air inlet 111, the air duct 500 can shield a part of the first air inlet 111, thereby affecting the air intake volume of the mobile air conditioner. In order to increase the intake air volume of the mobile air conditioner, the lower housing 120 is provided with a second intake vent 121, and it can be understood that the second intake vent 121 is located below the first intake vent 111 and is spaced apart from the first intake vent. The second air inlet 121 is communicated with the external environment, the second air inlet 121 can serve as an auxiliary air inlet of the mobile air conditioner, the second air inlet 121 is communicated with the heat exchanger 300, and a second air inlet channel is formed and serves as a supplementary air inlet channel of the air outlet shell 200 for supplying supplementary air of the external environment to enter the heat exchanger 300 for heat exchange. The second air inlet 121 and the mounting portion 122 are arranged in a staggered manner, so that the air duct formed by connecting the mounting portion 122 with the air pipe 500 and the second air inlet channel are isolated from each other, air channeling cannot occur, and the heat exchange efficiency is influenced.
Referring to fig. 4 and 5, the air volume supplemented from the second air inlet 121 is guided into the air outlet housing 200 through the second air inlet channel, so that the heat exchange efficiency of the heat exchanger 300 is enhanced, the heat exchange effect of the mobile air conditioner is improved, the air volume of the air supply mechanism 400 is increased, and the user experience is better. Moreover, when the mobile air conditioner is installed near a wall, because the first air inlet 111 is blocked by the wall surface or the air pipe 500, the effective air inlet area is small, the air inlet volume is small, and at the moment, the second air inlet 121 can play a role in supplementing the air volume, so that the capacity of the mobile air conditioner and the actual heat exchange effect are improved.
It is understood that the second air inlet channel is defined between the internal structures of the casing 100, and the second air inlet channel may be arranged in a manner that each second air inlet 121 is independently provided with one second air inlet channel, or a plurality of second air inlets 121 share one second air inlet channel, which is not specifically limited herein.
Referring to fig. 3 and 5, in some embodiments of the present invention, the mobile air conditioner further includes a middle partition 600, the middle partition 600 is located in the casing 100, a cavity for accommodating the air outlet casing 200 is formed between the middle partition 600 and the casing 100, the air outlet casing 200 is mounted on the middle partition 600, the second air inlet 121 is located above the middle partition 600, and a second air inlet channel communicating the second air inlet 121 and the heat exchanger 300 is defined between the middle partition 600 and the lower casing 120, so that the second air inlet channel has better sealing performance, and air entering from the second air inlet 121 is prevented from escaping into the casing 100, thereby reducing loss of air entering from the second air inlet channel. In addition, the second air inlet 121 collects the supplementary intake airflow into the air outlet casing 200 through the sealed second intake passage, thereby improving the heat exchange efficiency of the mobile air conditioner.
Referring to fig. 5 and 6, in some embodiments of the present invention, the mobile air conditioner further includes a wind deflector 700, the wind deflector 700 is located in the lower casing 120, and two ends of the wind deflector 700 are respectively connected to the middle partition 600 and the mounting portion 122 of the lower casing 120 for mounting the wind pipe 500, so that the wind channel for heat exchange between the mobile air conditioner and the outdoor environment is isolated from the second wind inlet channel and sealed from each other, and wind channeling between the two is avoided, thereby affecting the wind blowing effect of the wind blowing mechanism 400. In addition, as shown in fig. 6, the outer wall of the air guide device 700 is streamlined, and a second air inlet channel is formed among the air guide device 700, the middle partition plate 600 and the lower shell 120, so that the resistance of the second air inlet channel is smaller, air inlet is smoother, the heat exchange efficiency of the heat exchanger 300 is enhanced, the heat exchange efficiency of the mobile air conditioner is improved, air inlet noise can be effectively reduced, and the mobile air conditioner can run more stably and quietly.
Referring to fig. 1 and 2, the lower housing 120 includes a top wall 130 and a surrounding wall 140, and the surrounding wall 140 is disposed around left, rear, and right ends of the top wall 130. It is understood that the second wind inlet 121 is located on the surrounding wall 140, that is, the second wind inlet 121 may be disposed on the left side wall surface, the right side wall surface, the left and right side wall surfaces, or the rear side wall surface of the surrounding wall 140, or disposed on all the wall surfaces of the surrounding wall 140. The second air inlet 121 is disposed on the peripheral wall 140, so that the influence of the air duct 500 on the second air inlet 121 can be reduced, and the effect of supplementing the air volume to the second air inlet 121 is ensured.
Referring to fig. 2, the second air inlet 121 includes a plurality of uniformly arranged through holes, the shape of the through holes is not particularly limited, as long as the aperture size required for air inlet is satisfied, the plurality of through holes can increase the supplemented air volume, and increase the heat exchange effect of the mobile air conditioner. For example, the second air inlet 121 includes one or more elongated holes, and the elongated holes may extend in a horizontal direction or in a vertical direction, and are not limited herein; the plurality of elongated holes are uniformly arranged on the wall 140, or are arranged in an array on the wall 140, and are not particularly limited herein. In addition, the second air inlet 121 includes a plurality of circular holes or polygonal holes, and the plurality of circular holes or polygonal holes are uniformly arranged on the peripheral wall 140.
It can be appreciated that, in order to further increase the air intake effect, the air duct 500 is generally installed on the top wall 130, so that there is a certain block to the first air inlet 111 of the upper housing 110, thereby affecting the air intake of the air outlet housing 200. Therefore, by disposing the second air inlet 121 on the top wall 130 and along the periphery of the mounting portion 122, the air inlet amount can be further supplemented near the first air inlet 111, the air inlet amount of the outlet casing 200 can be effectively increased, and air leakage with the air duct 500 is avoided, thereby improving the heat exchange efficiency of the mobile air conditioner.
Referring to fig. 2, in an embodiment of the present invention, the size of the second intake vent 121 disposed on the top wall 130 is required to satisfy a certain requirement, for example, the diameter of the largest inscribed circle that can be formed inside the second intake vent 121 is d, where d satisfies: d is more than 0 and less than or equal to 8 mm. It should be noted that, in the solution of the embodiment of the present invention, a diameter of a maximum inscribed circle that can be formed inside the second air inlet 121 is d, where the maximum inscribed circle may be understood as a maximum inscribed circle that can be formed by an outer contour trajectory of each through hole corresponding to the second air inlet 121.
For example, when the second air inlet 121 is a long hole, d refers to the length of the shorter side of the long hole; when the second air inlet 121 is a circular hole, d refers to the diameter of the circular hole. When d meets the above parameter requirements, it is avoided that the foreign matter falls into the casing 100 from the second air inlet 121 to damage the operation of the mobile air conditioner, which is convenient for cleaning the lower casing 120 and meets the requirements of safety regulations.
Referring to fig. 6 and 7, in some embodiments of the present invention, the first air inlet 111 is detachably connected to the first filter assembly 150, the first filter assembly 150 is connected to the upper housing 110 by a plurality of fasteners 151, and the plurality of fasteners 151 may be disposed along a circumferential direction of the first filter assembly 150. Of course, the first filter assembly 150 may be mounted on the upper housing 110 in other detachable manners, such as bolts. It should be noted that the first filter assembly 150 covers the first air inlet 111, and filters the air entering from the first air inlet 111, so as to prevent the air from polluting the heat exchanger 300, and improve the quality of the air blown out by the air supply mechanism 400, thereby improving the user experience.
Referring to fig. 5 and 6, in some embodiments of the present invention, in order to prevent the intake airflow from the second intake opening 121 from polluting the surface of the heat exchanger 300, the second filter assembly 160 is disposed in the lower housing 120, the second filter assembly 160 is located in the second intake passage, and the second filter assembly 160 filters the intake airflow from the second intake opening 121, so as to prevent the supplementary intake air from polluting the heat exchanger 300, and further improve the quality of the air blown by the air supply mechanism 400, thereby improving the user experience.
Referring to fig. 6 and 7, in some embodiments of the present invention, the second filter assembly 160 is fixedly connected to the first filter assembly 150, so that a user can remove the second filter assembly 160 while removing the first filter assembly 150, and the second filter assembly 160 can be drawn out upward through the first air inlet 111 as the first filter assembly 150, so that the second filter assembly 160 can be more conveniently detached and cleaned by the user. In order to facilitate the insertion, installation, or removal and extraction of the first filter assembly 150 and the second filter assembly 160 from the top, the lower end of the first filter assembly 150 is generally not provided with a buckle 151 which is installed in cooperation with the upper housing 110. It will be appreciated that second filter assembly 160 and first filter assembly 150 may be constructed as a unitary piece, such as by being integrally injection molded. Second filter assembly 150 is also formed by extending first filter assembly 150 downward to also facilitate user removal of first filter assembly 150 and second filter assembly 160 simultaneously.
Specifically, referring to fig. 7, in some embodiments of the present invention, the first filter assembly 150 includes a mounting frame 152 and a filter screen (not shown), and the mounting frame 152 is provided with a structure detachably connected to the housing 100, such as a buckle 151, for facilitating detachment and cleaning, and facilitating user operation. A groove (not shown) for accommodating a filter screen is formed on the mounting frame 152, and the filter screen can be fixed in the groove; of course, the filter screen may be fixed to the mounting frame 152 by means of bonding, screwing, etc., and is not limited in detail here. It should be noted that, the surface of the mounting bracket 152 is provided with the grids 153, grid holes are formed between the grids 153, before air enters the first air inlet channel in the upper housing 110 through the grid holes on the mounting bracket 152, the air needs to be filtered through the filter screen, and the filtered air enters the heat exchanger 300 again for heat exchange, so that particles such as dust in the air can be effectively blocked, and the heat exchanger 300 is prevented from accumulating impurities on the surface, and further the heat exchange efficiency of the heat exchanger 300 is influenced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.