CN212081518U - Portable desktop cooling and heating machine - Google Patents

Abstract

The utility model discloses a portable desktop cooling and heating machine, including host computer and tray, wherein be equipped with the heat dissipation cavity in the box casing of host computer, the refrigeration cavity, automatically controlled box and the refrigeration semiconductor piece of separating two cavitys, establish silence axial fan in heat dissipation cavity and the refrigeration cavity respectively and driven in automatically controlled box and take a breath outward, the forward front side of two cavitys is located to automatically controlled box overall arrangement, the refrigeration semiconductor piece is separated two cavitys and is equipped with radiating fin to extending in each cavity, and the refrigeration semiconductor piece meets and is driven the electric refrigeration with automatically controlled box, this tray activity dock in heat dissipation cavity or refrigeration cavity side and communicate the inner chamber and transfer heat. The desktop cooling and heating equipment of the utility model has optimized structure, small volume and light weight, and can realize centralized heating and refrigeration of desktop fixed points through an external power supply and simple operation setting; the device has the practical advantages of small occupied space, low noise, accurate temperature control, higher electric energy conversion efficiency, convenience in operation, safety, reliability and the like.

Description

Portable desktop cooling and heating machine

Technical Field

The utility model relates to a desktop accuse temperature application apparatus especially relates to a portable, easily use at the desktop, directional refrigeration heats portable device as required.

Background

Air conditioning equipment and refrigerators become household appliances with high popularity, and the refrigeration principle is that a compressor is basically adopted to compress a refrigerant from a gas state to a liquid state and release heat, and the condensed refrigerant enters an evaporator to be evaporated and absorb heat and then is changed into the gas state again. The cooling is performed in such a reciprocating manner, and the heating adopts the reverse process of the cooling. Therefore, the purposes of cooling and heating the local space are achieved.

The existing air conditioning system and refrigerator basically work in a compression refrigeration heating mode, so that a compressor is an indispensable component of the air conditioning system and the refrigerator, and high noise is a difficult point needing to overcome the problem. And because the volume of the compressor is limited, the equipment is difficult to be made too small, and the volume of the vehicle air conditioner is calculated to be a smaller system. In general, the following problems are common to the conventional cooling and heating apparatuses in the household appliance or industrial product application: depending on the compression refrigeration and heating technology, the compressor is a core component, and the volume of the compressor is difficult to miniaturize, so the realization difficulty of miniaturization and silent mode operation is high.

The existing small desktop equipment is often single in function, for example, the small heater only has a heating function, and the unicity is remarkable; the heating principle comprises an electric heating wire, a PTC ceramic heating sheet and the like, and the heating efficiency is lower than that of the compression heat pump principle. And when the user needs different temperatures in different seasons, different environment, often need combine indoor central air conditioning, ordinary electric fan etc. promptly acquire to the drinking cup or other function experiences of using article heating or cooling and need use the equipment more than two and the energy consumption is considerable.

Disclosure of Invention

In view of the above-mentioned prior art not enough, the utility model discloses an aim at providing portable desktop cooling and heating machine, solve the problem that realizes desktop local refrigeration heating on the basis of limited duty.

The utility model discloses realize above-mentioned purpose technical solution is: portable desktop cold and warm machine, its characterized in that: the refrigerating semiconductor wafer heat dissipation device comprises a host and a tray, wherein a heat dissipation cavity, a refrigerating cavity, an electric control box and a refrigerating semiconductor wafer for separating the two cavities are arranged in a box-shaped shell of the host, a mute first axial flow fan is arranged in the heat dissipation cavity and driven by the electric control box to perform external air exchange, a mute second axial flow fan is arranged in the refrigerating cavity and driven by the electric control box to perform external air exchange, the electric control box is arranged on the forward front side of the two cavities, the refrigerating semiconductor wafer is used for separating the two cavities and extending heat dissipation fins into the cavities, the refrigerating semiconductor wafer is connected with the electric control box and driven to perform electric refrigeration, and the tray is movably connected with the heat dissipation cavity or the side of the refrigerating cavity in an butt.

Above-mentioned portable desktop cold and warm machine, further, the heat dissipation cavity is equipped with first air intake and first air outlet side by side beside the host computer, and just first air intake is equipped with the dust screen, is equipped with the first axial fan of silence in the inboard conch wall of first air outlet, is controlled to form the one-way air current from first air intake to first air outlet in the heat dissipation cavity.

The portable desktop cooling and heating machine is characterized in that the refrigeration cavity is provided with a second air inlet and a second air outlet at the other side of the host side by side, the second air inlet is provided with a dust screen, a mute second axial fan is installed in the wall of the inner side of the second air outlet, and one-way air flow from the second air inlet to the second air outlet is controlled to be formed in the refrigeration cavity.

In the portable desktop cooling and heating machine, the tray is a box body with a hollow inner part, and a flow guide interface which is butted and communicated with the air inlet and the air outlet of the heat dissipation cavity or the refrigeration cavity is arranged on one side surface of the tray; the top surface of tray is equipped with sunken form and holds the groove, holds the groove degree of depth and is less than the half of tray height, and holds the groove and distribute in the tray inner face and be equipped with heat transfer fin, and the tray is equipped with fire-retardant heat retaining cotton inside lining in the inner face except holding the groove.

Above-mentioned portable desktop cold and warm machine, further, be equipped with the soft magnetic sealing strip to inhaling between the periphery of the box casing both sides of host computer and the butt joint face of tray.

Above-mentioned portable desktop cold and warm machine, further, the inner face of heat dissipation cavity, refrigeration cavity is equipped with fire-retardant heat retaining cotton inside lining, and distributes in every cavity and is equipped with the temperature sensor of more than one signal access automatically controlled box.

Above-mentioned portable desktop cold and warm machine, further, be equipped with microprocessor, power and peripheral circuit based on the circuit board in the automatically controlled box, and the forward surface of automatically controlled box is equipped with controls input unit, status indicator lamp or display screen that link to each other through circuit board and microprocessor, it dials the shelves switch for temperature regulation knob, mode switch at least to control input unit.

In the portable desktop cooling and heating machine, further, the power supply is a transformer which is externally connected with a mains supply plug and outputs 20V direct current, or an interface circuit corresponding to the mobile power supply, or the combination of the two is multiplexed.

Use the utility model discloses technical solution of desktop changes in temperature equipment possesses substantive characteristics and progressive: the desktop cooling and heating machine has an optimized structure, is small and portable in size, and can realize fixed-point central heating and cooling of the desktop through an external power supply and simple operation setting; the device has the practical advantages of small occupied space, low noise, accurate temperature control, higher electric energy conversion efficiency, convenience in operation, safety, reliability and the like.

Drawings

Fig. 1 is a perspective view of the top structure of the table top cooling and heating machine of the present invention.

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Fig. 3 is a front view of the table top cooling and heating apparatus shown in fig. 1.

Fig. 4 is a right external view of the table top cooling and heating machine shown in fig. 1.

Fig. 5 is a schematic top view of the docking tray of the table top refrigerator and warmer shown in fig. 1.

Fig. 6 is a side perspective schematic view of the tray of fig. 5.

Detailed Description

The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp, and thus make a clearer definition of the protection scope of the present invention.

In view of the above-mentioned deficiency of the existing small-sized desktop temperature control equipment, the inherent defects of the traditional air conditioner and refrigerator, such as the unable reduction of volume, the complex equipment structure, the larger noise and the low energy efficiency, the active research and innovation of the designer provides a portable desktop cooling and heating machine with a miniaturized structure, so that the user can conveniently obtain the cooling or heating of the object in a limited space with zero noise.

As an edge subject technology between semiconductor technology and refrigeration technology has been developed, it is becoming the third major refrigeration technology besides compression refrigeration and absorption refrigeration. It uses P-N junction made of special semiconductor material to form thermocouple pair, and generates Peltier effect, and utilizes direct current to make directional refrigeration.

From the technical summary of the innovative cooling and heating machine, the structure mainly comprises a host and a tray, wherein the host embodies the combination of the application functions of an air conditioner and a refrigerator and is reliable in realizing the refrigeration and heating of a desktop; and the tray is embodied as a carrier which is beneficial to accommodating objects needing refrigeration and heating, and is interacted with the host machine through heat exchange.

As can be seen from the various views and sectional views shown in fig. 1 to 6, in the portable desktop cooling and heating machine of the present invention, a heat dissipation cavity 11, a refrigeration cavity 12, an electronic control box 13 and a refrigeration semiconductor chip 14 for separating the two cavities are disposed in a box-shaped housing of a main machine 1, and the summary structure characteristics of each component part are as follows: the first silent axial fan 21 is arranged in the heat dissipation cavity 11 and driven by the electric control box 13 to ventilate externally, the second silent axial fan 22 is arranged in the refrigeration cavity 12 and driven by the electric control box 13 to ventilate externally, the electric control box 13 is arranged on the front sides of the two cavities, the refrigeration semiconductor wafer 14 separates the two cavities and extends to the front of each cavity to form the heat dissipation fins 15, and the refrigeration semiconductor wafer 14 is connected with the electric control box 13 and driven to perform electric refrigeration. On the other hand, the tray 3 is movably connected to the side of the heat dissipation cavity 11 or the refrigeration cavity 12 and communicated with the inner cavity for heat transfer. In the scheme, the refrigeration semiconductor wafer 14 is a refrigeration core component, and directional heat exchange between two separated cavities is realized by obtaining a polarity voltage applied by the electric control box. The temperature difference between the two cavities can be controlled after the polarity voltage is linearly adjusted, for example, when the cooling and heating machine needs to refrigerate and cool articles in the tray or directly obtains cool air from the air outlet, the output of the polarity voltage can be adjusted to enable the refrigeration cavity to reach and keep the required temperature. On the contrary, when the articles in the tray need to be heated or the warm air is directly obtained from the air outlet, the polarity and the output magnitude of the applied voltage can be switched to enable the heat dissipation cavity to reach and keep the required temperature. Therefore, the heat dissipation cavity and the refrigeration cavity have interchangeability based on polarity switching of applied voltage, can automatically set requirements for meeting functions according to the habit of left and right hands of a user, and has adjustable refrigeration and heating strength.

From the structure of further detailed components, in the above-mentioned main unit of the portable desktop cooling and heating machine, the heat dissipation cavity 11 (not shown separately) is provided with a first air inlet and a first air outlet side by side at one side (left side) of the main unit, the first air inlet is provided with a dust screen, a silent first axial fan 21 is installed in the inner shell wall of the first air outlet, a unidirectional air flow from the first air inlet to the first air outlet is formed in the heat dissipation cavity under control, and the air flow intensity is adjustable and set along with the rotating speed of the axial fan. Similarly, as shown in fig. 4, the refrigeration cavity 12 (or referred to as a working cavity) is provided with a second air inlet 121 and a second air outlet 122 at another side of the main machine, the second air inlet 121 is provided with a dust screen 5, a silent second axial fan 22 is installed in an inner side shell wall of the second air outlet 122, and a unidirectional air flow from the second air inlet 121 to the second air outlet 122 is controlled to be formed in the refrigeration cavity, and is also adjustable.

As shown in fig. 6, the tray 3 is a hollow box, and a flow guide interface 31 is disposed on one side of the tray 3 and is connected to and communicated with the air inlet and the air outlet of the heat dissipation cavity or the refrigeration cavity. When the tray is butted with the host machine, a closed and communicated cavity is formed after the tray and the host machine are jointed, and air flow circulates in the cavity. The top surface of the tray 3 is provided with a concave containing groove 32, and the depth of the containing groove 32 is less than half of the height of the tray, so that the air flow of the internal circulation cannot be obstructed. And the heat exchange fins 33 are distributed on the inner surface of the tray in the accommodating groove 32.

The movable joint of the host and the tray is convenient, and ideal air tightness is guaranteed. Soft magnetic sealing strips 41 are arranged on the peripheries of two sides of the box-shaped shell of the host machine; the outer frame of the butt joint face of the tray is also provided with a soft magnetic sealing strip 42, and the two phases can be sucked and realize airtight sealing. As can be seen from figures 5 and 6, the tray is a semicircular hollow box body, and the butt joint surface of the tray and the host machine is a plane.

In addition, from the industrial manufacturing aspect, the cooling and heating main machine is made of hot rolled steel plates (baking finish treatment), and the inner surfaces of the heat dissipation cavity and the working cavity are provided with flame-retardant and heat-insulating cotton linings; the tray is also made of hot rolled steel plates (baking finish treatment), and the inner surface of the tray is also provided with a flame-retardant heat-insulating cotton lining. What is different is that the position of holding the groove is stainless steel, does not do the heat preservation and handles, utilizes the aforesaid heat transfer fin to be convenient for the quick heat-conduction of here to handle. It should be added that: the cooling fins attached to the two sides of the refrigerating semiconductor are made of aluminum alloy or other metal sheets with good heat conductivity, so that the heat exchange efficiency of airflow in the two cavities during refrigerating and heating is improved.

Moreover, more than one temperature sensor 6 for signal access to the electric control box is distributed in each cavity, so that the air flow temperature in the equipment can be fed back in time, and accurate temperature control is realized. For example, the cup, the warming of food or the cooling of a beverage bottle can be matched to approximate the user setting.

From the viewpoint of convenience and practicability of the desktop cooling and heating machine, a microprocessor 72, a power supply and peripheral circuit 74 are arranged in the electronic control box 13 based on a circuit board 71, and a control input unit, a status indicator lamp 82 or a display screen 83 connected with the microprocessor through the circuit board are arranged on the front surface of the electronic control box 13, wherein the control input unit includes but is not limited to a temperature adjusting knob 81 and a mode switching and shifting switch; the power supply is a transformer which is externally connected with a mains supply plug 73 and converts 20V direct current output, or an interface circuit corresponding to the mobile power supply, or the combination of the two is multiplexed. The cold and warm machine adopts 20V weak current as a working power supply, so that the safety is higher. In the area where power taking is inconvenient, an external weak current power supply can be used for accessing work, and the application range is wider. Based on the electrical control principle, the signal is modulated by the mechanical knob, the processor and the peripheral circuit realize state lamp control and screen display data, particularly parameter output of the polar voltage for driving the semiconductor refrigerating sheet is easy to realize, the desktop cooling and heating machine is optimized in structure, the electric control has mature referential performance, the key point of the application is omitted, and the detailed description is omitted. Such as a commercially available digital voltage regulator, a converter that can adjust the output, or a control unit for a reference audio device.

In summary, the detailed description and the functional explanation of the embodiment of the table top cooling and heating device of the present invention are obvious that the solution has the following substantial features and progresses.

Miniaturized cold and warm host computer: the mode of traditional compression refrigeration heating has been abandoned, selects for use the semiconductor refrigeration piece to refrigerate and heats, and the volume can carry out size setting according to the actual demand, only receives the influence of wind channel and fan volume.

Mute type cold and hot main engine: because of abandoning the compression type heating and cooling mode, eliminated this biggest noise source of compressor simultaneously, equipment is in the heating and cooling process, only has the fan and the weak wind sound in wind channel, and the silence effect is better.

Efficient heating type cooling and heating machine: different from the traditional heating by electric heating wires or PTC semiconductor heating, the heating by semiconductor refrigerating sheets is selected. In the working process, the consumed electric energy is converted into heat energy, and meanwhile, the heat of the cold surface of the semiconductor is transferred to the hot surface by using the consumed electric energy, namely the heating capacity of the hot surface is equal to the refrigerating capacity of the cold surface plus the consumed electric energy. Therefore, the heating efficiency of the cooling machine is higher than that of the traditional electric heating wire heating or PTC heating, and the energy is saved.

Cooling and heating machine with comprehensive functions: besides the function of local refrigeration and heating, the heating plate can also be used as a small-sized open refrigerator or a heating plate for heating or refrigerating water cups or food and the like or for keeping the water cups or the food cold and hot.

In addition to the above embodiments, the present invention may have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of the present invention.

Claims (8)

1. Portable desktop cold and warm machine, its characterized in that: the refrigerating semiconductor wafer heat dissipation device comprises a host and a tray, wherein a heat dissipation cavity, a refrigerating cavity, an electric control box and a refrigerating semiconductor wafer for separating the two cavities are arranged in a box-shaped shell of the host, a mute first axial flow fan is arranged in the heat dissipation cavity and driven by the electric control box to perform external air exchange, a mute second axial flow fan is arranged in the refrigerating cavity and driven by the electric control box to perform external air exchange, the electric control box is arranged on the forward front side of the two cavities, the refrigerating semiconductor wafer is used for separating the two cavities and extending heat dissipation fins into the cavities, the refrigerating semiconductor wafer is connected with the electric control box and driven to perform electric refrigeration, and the tray is movably connected with the heat dissipation cavity or the side of the refrigerating cavity in an butt.

2. A portable desktop cooler and warmer as set forth in claim 1, wherein: the heat dissipation cavity is provided with a first air inlet and a first air outlet in parallel at one side of the host, the first air inlet is provided with a dust screen, a mute first axial fan is installed in the inner shell wall of the first air outlet, and one-way air flow from the first air inlet to the first air outlet is formed in the heat dissipation cavity in a controlled mode.

3. A portable desktop cooler and warmer as set forth in claim 1, wherein: the refrigeration cavity is provided with a second air inlet and a second air outlet at the other side of the host side by side, the second air inlet is provided with a dustproof net, a mute second axial flow fan is installed in the inner shell wall of the second air outlet, and one-way air flow from the second air inlet to the second air outlet is controlled to be formed in the refrigeration cavity.

4. A portable desktop cooler and warmer as set forth in claim 1, wherein: the tray is a box body with a hollow interior, and a flow guide interface which is butted and communicated with an air inlet and an air outlet of the heat dissipation cavity or the refrigeration cavity for air exchange is arranged on one side surface of the tray; the top surface of tray is equipped with sunken form and holds the groove, holds the groove degree of depth and is less than the half of tray height, and holds the groove and distribute in the tray inner face and be equipped with heat transfer fin, and the tray is equipped with fire-retardant heat retaining cotton inside lining in the inner face except holding the groove.

5. A portable desktop cooler and warmer as set forth in claim 1, wherein: and a soft magnetic sealing strip for absorbing the magnetism is arranged between the peripheries of two sides of the box-shaped shell of the host machine and the butt joint surface of the tray.

6. A portable desktop cooler and warmer as set forth in claim 1, wherein: the inner surfaces of the heat dissipation cavity and the refrigeration cavity are provided with flame-retardant heat-preservation cotton linings, and more than one temperature sensor for signal access to the electric control box is distributed in each cavity.

7. A portable desktop cooler and warmer as set forth in claim 1, wherein: the electric control box is internally provided with a microprocessor, a power supply and a peripheral circuit based on a circuit board, the forward surface of the electric control box is provided with an operation input unit, a state indicator lamp or a display screen which are connected with the microprocessor through the circuit board, and the operation input unit is at least a temperature adjusting knob and a mode switching gear shifting switch.

8. A portable table top warmer as set forth in claim 7, wherein: the power supply is a transformer which is externally connected with a mains supply plug and converts 20V direct current output, or an interface circuit corresponding to the mobile power supply, or the combination of the two is multiplexed.

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