CN104329748A - Desktop air conditioner - Google Patents

Abstract

The invention provides a desktop air conditioner. Specifically, the desktop air conditioner includes a base, a hot and cold wind generating and blowing part installed on the base, and a main control circuit board. In particular, the base has a central cavity, and the main control circuit board is arranged in the central cavity. inside the cavity. Because the main control circuit board of the desktop air conditioner of the present invention is arranged in the central cavity of the base, the inner space of the base is fully utilized, so that the structure of the desktop air conditioner is compact.

Description

desktop air conditioner

technical field

The invention relates to an air supply device or an air conditioner, in particular to a desktop air conditioner.

Background technique

Small desktop fans generally can only blow out natural wind at the same temperature as the room temperature, and cannot change the temperature of the wind. Therefore, when cooling is required, the desktop small fan cannot achieve a good cooling effect; when heat is needed, the desktop small fan is idle because it cannot generate hot air.

In addition, although a household air conditioner can generate cold or hot air, it cannot be placed on a desktop or moved around due to its large size, which is not convenient enough to use. Therefore, household air conditioners are difficult to install and use in indoor desks or smaller spaces.

Therefore, how to reduce the volume of the existing air conditioner, especially the semiconductor air conditioner, and place it on the desktop to become a desktop air conditioner is a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

An object of the present invention is to provide a compact desktop air conditioner that can provide cold or hot air.

A further object of the present invention is to make the desktop air conditioner as simple as possible in structure and easy to install.

In order to achieve at least one of the above objectives, the present invention provides a desktop air conditioner, comprising a base, a cold and hot wind generating and blowing part installed on the base, and a main control circuit board; the hot and cold wind generating and blowing part has cooling and heating module, and the cold and hot wind generation blowing part is formed with a cold wind passage and a hot wind passage isolated from each other; Enter the cold air passage and the hot air passage, and flow along the cold air passage and the hot air passage to flow out of the desktop air conditioner, and the two airflows are respectively connected with the cooling and heating modules during the upward flow process. The cold end and the hot end perform heat exchange to form cold air flow and hot air flow respectively; wherein, the base has a central cavity, and the main control circuit board is arranged in the central cavity.

Optionally, the top wall of the central cavity has a threading opening to communicate with the cavity of the fuselage of the hot and cold wind generating blowout part.

Optionally, each connection terminal of the main control circuit board is fixed on the upper surface of the main control circuit board, and extends into or passes through the threading opening; the rest of the electronic components on the main control circuit board are fixed on the lower surface of the main control circuit board.

Optionally, the upper part of the hot and cold wind generating and blowing part has an input-output control circuit board, and a plurality of electrical wires connected from the input-output control circuit board to the main control circuit board pass through the fuselage The cavity is plugged into the corresponding terminal of the main control circuit board.

Optionally, a plurality of ribs extend vertically downward from the inner surface of the top wall of the central cavity, and the lower edge of each rib interferes with the upper surface of the main control circuit board.

Optionally, the base includes a bottom plate and a seat cover buckled on the bottom plate, the central cavity is defined between the bottom plate and the seat cover.

Optionally, at least one positioning column extends vertically downward from the inner surface of the seat cover; at least one boss with a positioning socket extends vertically upward from the upper surface of the bottom plate; each of the positioning columns passes through the The corresponding positioning through hole of the main control circuit board is inserted into a positioning jack corresponding to the boss, and the upper end surface of each boss is in contact with the lower surface of the main control circuit board.

Optionally, a plurality of screw holes extend vertically downward from the inner surface of the seat cover, and a plurality of screws respectively pass through the bottom plate and screw into corresponding screw hole posts, so as to fix the bottom plate to the seat cover.

Optionally, a circumferential outer surface of each of the screw holes is respectively in contact with and abuts against a circumferential edge of the main control circuit board.

Optionally, a power cord plug connector is provided on the peripheral side wall of the base; an anti-slip shock-absorbing pad is installed on the lower surface of the bottom plate.

Because the main control circuit board of the desktop air conditioner of the present invention is arranged in the central cavity of the base, the internal space of the base is fully utilized, so that the structure of the desktop air conditioner is compact.

Further, since the main control circuit board of the desktop air conditioner of the present invention is arranged in the inner line of the base and is arranged facing downward, the influence of the condensed water produced by the body of the desktop air conditioner on the main control circuit board is avoided as much as possible.

Furthermore, due to the special structure of the base in the desktop air conditioner of the present invention, the main control circuit board can be well protected to prevent it from being damaged due to random movement in the central cavity.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of a desktop air conditioner according to an embodiment of the present invention;

Fig. 2 is a schematic sectional view of a desktop air conditioner according to an embodiment of the present invention;

Fig. 3 is a schematic exploded view of a desktop air conditioner according to an embodiment of the present invention;

Fig. 4 is a partial exploded view of a desktop air conditioner according to an embodiment of the present invention;

Fig. 5 is a schematic structural view of the seat cover in the base of the desktop air conditioner shown in Fig. 4 .

Detailed ways

Fig. 1 is a schematic structural diagram of a desktop air conditioner according to an embodiment of the present invention. As shown in Figure 1, and refer to Figures 2 and 3. The embodiment of the present invention provides a small desktop air conditioner with a novel structure that can provide cold air or hot air, which includes a base 100 and a hot and cold wind generating and blowing part installed on the base 100 . The hot and cold wind generating and blowing part has a cooling and heating module, and the cold and hot wind generating and blowing parts are formed with mutually isolated cold wind passages and hot wind passages. The hot and cold wind generation blowing part is configured such that two airflows enter the cold air passage and the hot wind passage respectively from the peripheral wall of the hot and cold wind generating blowing part, and flow along the cold wind passage and the hot wind passage to flow out of the desktop air conditioner, and the two airflows During the upward flow process, heat exchange is performed with the cold end and the hot end of the cooling and heating module respectively to form the cold air flow and the hot air flow respectively.

Specifically, the hot and cold wind generation blowing part may include a body 200 having a cooling and heating module and a top cover assembly 300 . The fuselage 200 is installed on the base 100 and is configured to inhale two mutually isolated airflows from its surrounding wall and blow them upward, and exchange heat with the cold end and the hot end of the cooling and heating module respectively during the upward blowing process of the two airflows , so that the temperature of one airflow is lower than the temperature when it is inhaled, it becomes a cold airflow, and the temperature of the other airflow is higher than the temperature when it is inhaled, and it becomes a hot airflow. The top cover assembly 300 is installed on the upper end of the fuselage 200 and is configured to respectively receive the cold air flow and the hot air flow from the body 200 and blow the cold air flow and the hot air flow out of the desktop air conditioner in different directions. When cold air is needed, the cold air flow is mainly used to provide cold air, and the hot air flow is used for heat dissipation. The desktop air conditioner in the embodiment of the present invention has a simple, clear and compact structure.

The fuselage 200 includes a fuselage shell and a movement. The core is arranged in the shell of the fuselage, and the core can have the above-mentioned cooling and heating module. The cooling and heating module can have at least one peltier refrigerating sheet 221, and the two airflows directly or indirectly exchange heat with the corresponding temperature-changing surface of each peltier cooling sheet 221 to change the temperature to become cold airflow and hot airflow. Because the desktop air conditioner adopts semiconductor cooling chips for refrigeration, the noise of the desktop air conditioner is significantly reduced, the structure of the desktop air conditioner is simplified, and the desktop air conditioner is miniaturized.

The cooling and heating module may also include a central partition 222 and two heat exchangers. The central partition 222 is arranged vertically and has an installation opening through its thickness direction. At least one peltier 221 is disposed in the installation opening. The two heat exchangers are cold wind side heat exchanger 231 and hot wind side heat exchanger 232 respectively. The two heat exchangers are respectively fixed on two sides of the central partition 222 , and at least one peltier refrigerated plate 221 and a partial block of the central partition 222 are sandwiched therebetween.

The movement may also include two centrifugal fans and two movement half-shells. The two centrifugal fans are cold air side centrifugal fan 241 and hot air side centrifugal fan 242 respectively. Two centrifugal fans are respectively fixed on the two vertical sides of the central partition 222 , and each centrifugal fan is located below the corresponding heat exchanger, and each centrifugal fan is configured to inhale the corresponding airflow from its air inlet area and blow it upward. The two movement half-shells are the cold-air side movement half-shell 251 and the hot-air side movement half-shell 252 respectively. The two half-shells of the movement are respectively covered and fastened on the two vertical sides of the central partition 222 to form two isolated cold air passages and hot air passages, respectively receiving the air flow from the corresponding centrifugal fan , and accommodate the corresponding heat exchangers in it, so that the two airflows can exchange heat with the corresponding heat exchangers during the process of blowing upwards. The channel also includes a volute air channel of the hot air side centrifugal fan. Wherein, the inner surface of the core half-shell 251 on the cold wind side is attached to an insulating layer to prevent the cooling generated by each semiconductor refrigeration sheet 221 from diffusing from the core half shell 251 on the cold wind side to the outside of the desktop air conditioner, so as to improve the utilization rate of cooling capacity .

The fuselage shell includes a half-shell 211 on the cold-air side and a half-shell 212 on the hot-air side. The half-shell 211 on the cold-air side and the half-shell 212 on the hot-air side are adjacent to each other along the horizontal direction, and jointly define a central cavity in the fuselage 200 . The middle and lower part of the peripheral wall of the cold air side fuselage half shell 211 is provided with a cold wind side air inlet 213 , and the middle and lower part of the peripheral wall of the hot air side fuselage half shell 212 is provided with a hot air side air inlet 214 .

Preferably, each core half-shell forms an integral part with the volute of the corresponding centrifugal fan, so that the volute of each centrifugal fan and the corresponding core half-shell are buckled on the corresponding vertical side of the central partition 222, so that Simplify the structure of the movement. The substrate area of the heat exchanger 232 on the hot air side is larger than that of the heat exchanger 231 on the cold air side, so as to improve the cooling efficiency and working efficiency of the desktop air conditioner. In order to facilitate the introduction of the cold air flow and the hot air flow into the top cover assembly. The core also includes a cold wind side deflector 261 and a hot wind side deflector 262, which are respectively fixed on the two vertical sides of the central partition 222 by screws, and are respectively located above the corresponding heat exchangers, so as to separate the cold wind flow and the hot wind flow respectively. The hot air flow is introduced into the top cover assembly 300 .

In another embodiment of the present invention, there is a maintenance opening and a baffle 215 formed in the maintenance opening on the peripheral wall of the half-shell 211 on the side of the cold wind side. The air inlet of the centrifugal fan 241 is connected. The fuselage 100 also has a maintenance cover 280, which is configured to operably open and close the maintenance opening. It has a cover air inlet 281, and an air flow channel is formed between the maintenance cover 280 and the baffle 215 to receive air from the cover air inlet. 281 airflow, and supply airflow into the cold air passage through the cold air side air inlet 213 on the baffle 215 . A filtering device 283 is shielded on the air inlet portion 213 at the cold air side.

In order to facilitate the collection of condensed water produced by the desktop air conditioner, the cold air side heat exchanger 231 is also configured to guide the condensed water generated on it to the lowest point at its lower end. The bottom of the heat exchanger 231 is configured to receive the condensed water dripping from the cold wind side heat exchanger 231, and make the received condensed water collect on the first side inside the fuselage shell. The condensation water collection structure has a confluence tank 271 and a water collection box 272 . The confluence tank 271 is fixed on the central partition 222 and is located below the lowest point of the lower end of the cold air side heat exchanger 231 to receive the condensed water dripping from the cold air side heat exchanger 231 . The water inlet of the water collection box 272 is located vertically below the water outlet of the confluence tank 271 , so that the confluence tank 271 guides the received condensed water to the water collection box 272 .

Fig. 4 is a partial exploded view of a desktop air conditioner according to an embodiment of the present invention. As shown in FIG. 4 and referring to FIG. 5 , the desktop air conditioner of the embodiment of the present invention further includes a main control circuit board 130 , which is the control core of the desktop air conditioner. In order to make the structure of the desktop air conditioner compact and further reduce the volume of the desktop air conditioner, the base 100 of the desktop air conditioner has a central cavity, and the main control circuit board 130 is arranged in the central cavity to make full use of the base of the desktop air conditioner.

In some embodiments of the present invention, the top wall of the central cavity has a threading opening to communicate with the cavity of the fuselage of the hot and cold wind generation and blowing part, so that the main control circuit board 130 can be connected to the fuselage or the top cover conveniently. Corresponding components in the assembly are electrically connected. For example, the top cover assembly 300 of the desktop air conditioner includes an input and output control circuit board, that is, the upper part of the hot and cold wind generating and blowing part has an input and output control circuit board. All wires pass through the cavity of the fuselage and are plugged into corresponding terminals of the main control circuit board 130.

In order to further reduce the volume of the desktop air conditioner, each connection terminal of the main control circuit board 130 is fixed on the upper surface of the main control circuit board 130 and extends into or passes through the wiring opening. All other electronic components on the main control circuit board 130 are fixed on the lower surface of the main control circuit board 130 .

Specifically, the base 100 may include a bottom plate 110 and a seat cover 120 buckled on the bottom plate 110 , and a central cavity is defined between the bottom plate 110 and the seat cover 120 . A plug connector for a power cord is disposed on a peripheral side wall of the base 100 . An anti-slip shock-absorbing pad 140 is installed on the lower surface of the base plate 110 .

In order to make the main control circuit board firmly located in the base, the base 100 also has a plurality of ribs 121 extending vertically downward from the inner surface of the top wall of the central cavity, that is, extending vertically downward from the inner surface of the seat cover 120 Root rib 121. The lower edge of each rib 121 interferes with the upper surface of the main control circuit board. At least one positioning column 122 extends vertically downward from the inner surface of the seat cover 120 . At least one boss 111 with a positioning insertion hole extends vertically upward from the upper surface of the bottom plate 100 . Each positioning post 122 is inserted into a positioning socket of a corresponding boss 111 through a corresponding positioning through hole of the main control circuit board 130 , and the upper end surface of each boss 111 is in contact with the lower surface of the main control circuit board 130 .

In other embodiments of the present invention, a plurality of screw holes 125 extend vertically downward from the inner surface of the seat cover 120 , and a plurality of screws pass through the bottom plate 110 and screw into the corresponding screw hole columns 125 to fix the bottom plate 110 on the seat cover 120. In particular, the circumferential outer surface of each screw hole post 125 contacts and abuts against the circumferential edge of the main control circuit board 130 respectively.

In order to facilitate the installation and cooperation between the base and the fuselage, the outer peripheral surface of the base 100 has a flange section 123 that protrudes horizontally and extends at an angle along the circumferential direction, and has a circumferential positioning groove on the flange section 123 . The lower part of the fuselage half shell 212 on the hot air side has a groove section 217 corresponding to the flange section 123 , and a circumferential positioning rib corresponding to the circumferential positioning groove of the flange section 123 is provided in the groove section 217 . The top surface of the base 100 has at least one positioning protrusion insert 124 . The lower end surface of the movement has at least one positioning notch corresponding to each positioning protruding block 124 . For example, the number of at least one positioning protruding insert 124 is two, and the two positioning protruding inserts 124 are arranged symmetrically with respect to the central symmetrical plane of the base 100 . Two positioning notches can be arranged on the lower edge of the central partition 222 at intervals along the length direction of the central partition 222 .

When the desktop air conditioner is installed in the embodiment of the present invention, firstly, the components in the core are assembled to form the core. Fix the half-shell 212 on the hot air side to the core of the desktop air conditioner to form a first pre-assembled assembly. Insert the base 100 into the first pre-assembled assembly, so that the flange segment 123 of the base is inserted into the groove segment 217, and the circumferential positioning rib in the groove segment 217 is inserted into the circumferential positioning groove on the flange segment 123, Each positioning protrusion plug 124 is inserted into a corresponding positioning notch. The top cover assembly 300 is installed on the central partition 222 of the movement 200 . Fasten the top of the half shell 211 on the cold air side to the top of the half shell 212 on the hot air side. Fix the half shell 211 of the air-cooled side body to the movement 200 . Insert the water collection box 272, and place the filter device 283 and/or aromatherapy, etc. Put on the maintenance cover 280.

In some other embodiments of the present invention, the movement may further include an air quality detection module 224 and a temperature and humidity detection module. The air quality detection module 224 is fixed on the central partition 222, and is located below the hot air side centrifugal fan 242 and in the air inlet diffuser area of the hot air side centrifugal fan 242, so as to diffuse according to the air inlet air channel of the hot air side centrifugal fan 242. The airflow in the area detects the air quality. Air quality detection module 224 generally adopts PM2.5 detection device and/or VOC sensor. The temperature and humidity detection module is fixed on the central partition 222, and is located below the hot air side centrifugal fan 242 and in the diffusion area of the air inlet duct of the hot air side centrifugal fan 242, so as to The airflow inside detects the temperature and humidity of the air.

In order to facilitate remote control, the movement also includes a wifi module 226, which is fixed on the central partition 222, and is located below the centrifugal fan 242 on the hot air side, so as to realize intelligent control by connecting with smart terminals such as mobile phones and computers. In order to facilitate the sterilizing treatment of the formed cold air flow, the core further has a negative ion generating module 227 . The ion generating end of the negative ion generating module 227 is arranged on the central partition, and the ion emitting brush of the negative ion generating module 227 is fixed on the inner wall of the core half shell 251 on the cold air side.

The top cover assembly 300 includes an air channel bottom plate and an air channel top plate, wherein a cold air inlet and a hot air inlet are opened on the bottom surface of the air channel bottom plate to respectively receive the cold air flow and the hot air flow. A cold wind blowing out air duct and a hot wind blowing out air duct are formed between the air duct top plate and the air duct bottom plate. In particular, the cold air outlet of the cold air outlet and the hot air outlet of the hot air outlet are arranged opposite to each other, that is, the cold air outlet and the hot air outlet of the top cover assembly 300 are arranged oppositely, so that the cold air flow and the hot air flow are blown away from each other. Desktop air conditioner.

The top cover assembly 300 may further include: a light guide plate, a light guide mask, a display touch panel, a light emitting circuit board, and an input/output control circuit board arranged in sequence from bottom to top. The light guide plate is arranged above the top plate of the air duct. The central step through hole on the top plate of the air duct connects the light-emitting circuit board to the horizontal part of the bottom plate of the air duct, and at least one light-emitting lamp on the light-emitting circuit board enters the light receiving groove of the light guide plate through the central step through hole on the top plate of the air duct In order to inject the emitted light into the light guide plate when the light emitting element is powered on. The input and output control circuit board is arranged between the light guide mask and the display touch panel. The light-emitting lamps on the light-emitting circuit board emit light of different colors according to different air quality levels, and are guided out by the light guide plate. The light guide mask is configured to cover part of the upper surface of the light guide plate, so that when the light-emitting element is powered on, a light ring is formed on the upper surface of the light guide plate not covered by the light guide mask. The display touch panel is configured to display information to a user and to receive user's operations. The touch operations that can be performed by the user include start-stop operation, start-up cooling operation, start-up air supply operation, increase wind speed operation, and decrease wind speed operation, etc. The display touch panel can display information such as the temperature, humidity, water level of the water collection box and wireless signal of the current environment. The display touch panel is set on the top of the desktop air conditioner, which is convenient for the user to press the switch while sitting down, and the control is convenient.

In addition, the desktop air conditioner in the embodiment of the present invention can be powered by mains power or a battery, that is, the desktop air conditioner in the embodiment of the present invention can be used in places without mains power such as the field and when it is inconvenient to connect to the mains power supply. , Significantly improves the application range of desktop air conditioners.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A desktop air conditioner, comprising a base and a hot and cold wind generating and blowing part installed on the base and a main control circuit board; The hot and cold wind generation and blowing part has a cooling and heating module, and a cold air channel and a hot air channel that are isolated from each other are formed in the cold and hot wind generating and blowing part; Enter the cold air channel and the hot air channel from the peripheral wall of the hot and cold air generating blowout part, and flow along the cold air channel and the hot air channel to flow out of the desktop air conditioner, and the two airflows are between In the process of flowing upward, heat exchange is performed with the cold end and the hot end of the cooling and heating module respectively to form the cold air flow and the hot air flow; it is characterized in that, The base has a central cavity, and the main control circuit board is arranged in the central cavity. 2. The desktop air conditioner according to claim 1, characterized in that, The top wall of the central cavity has a threading opening to communicate with the cavity of the fuselage of the hot and cold wind generating and blowing part. 3. The desktop air conditioner according to claim 2, characterized in that, Each connecting terminal of the main control circuit board is fixed on the upper surface of the main control circuit board, and extends into or passes through the threading opening; All other electronic components on the main control circuit board are fixed on the lower surface of the main control circuit board. 4. The desktop air conditioner according to claim 3, characterized in that, The upper part of the hot and cold wind generating and blowing part has an input-output control circuit board, and a plurality of electric wires connected to the main control circuit board from the input-output control circuit board are inserted through the body cavity. to the corresponding terminals on the main control circuit board. 5. The desktop air conditioner according to claim 1, characterized in that, A plurality of ribs extend vertically downward from the inner surface of the top wall of the central cavity, and the lower edge of each rib interferes with the upper surface of the main control circuit board. 6. The desktop air conditioner according to claim 1, characterized in that, The base includes a bottom plate and a seat cover buckled on the bottom plate, the central cavity is defined between the bottom plate and the seat cover. 7. The desktop air conditioner according to claim 6, characterized in that, at least one positioning post vertically extending downward from the inner surface of the seat cover; Extending vertically upward from the upper surface of the base plate is at least one boss with a positioning socket; Each of the positioning posts passes through a corresponding positioning through hole of the main control circuit board and is inserted into a corresponding positioning jack of the boss, and the upper end surface of each boss is connected to the lower surface of the main control circuit board. surface contact. 8. The desktop air conditioner according to claim 6, characterized in that, A plurality of screw holes extend vertically downward from the inner surface of the seat cover, and a plurality of screws respectively pass through the bottom plate and screw into corresponding screw hole posts to fix the bottom plate to the seat cover. 9. The desktop air conditioner according to claim 8, characterized in that, The circumferential outer surface of each of the screw holes respectively contacts and abuts against the circumferential edge of the main control circuit board. 10. The desktop air conditioner according to claim 6, characterized in that, A power cord plug connector is provided on the circumferential side wall of the base; The bottom surface of the bottom plate is equipped with anti-skid and shock-absorbing pads.