CN215190975U

CN215190975U - Anti-overflow coffee machine

Info

Publication number: CN215190975U
Application number: CN202121089266.XU
Authority: CN
Inventors: 李民权
Original assignee: Zhongshan Jacal Electric Co ltd
Current assignee: Zhongshan Jacal Electric Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-12-17
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to an anti-overflow coffee machine, which comprises a main body with a working cavity; a heating assembly; temperature-control mechanism and main control board, its characteristics are: the top of the working cavity is provided with an elastic anti-overflow detection probe piece, the anti-overflow detection probe piece is used for measuring the height of coffee foam or liquid level in the coffee cup, the main control board is provided with an anti-overflow control program with preset anti-overflow height and a temperature control program with preset temperature, and when the detected height reaches the preset anti-overflow height, the anti-overflow detection probe piece controls the heating mode of the heating assembly to be finished or reduces the heating power of the heating assembly to realize low-temperature heating through the anti-overflow control program; when the temperature control mechanism detects the temperature of the coffee cup or the temperature of the coffee in the coffee cup reaches a preset temperature, the heating mode of the heating assembly is controlled to be finished through the temperature control program. The utility model discloses the temperature that can guarantee coffee in the coffee cup is within predetermineeing the temperature range, can ensure again that the foam can not take place in the heating process and spill over and the overflow problem, use safe and reliable.

Description

Anti-overflow coffee machine

Technical Field

The utility model relates to a coffee preparation field, especially an anti-overflow goes out coffee machine.

Background

The existing coffee machine, especially the Turkish coffee machine, has very high requirement on the temperature of liquid in a coffee cup, the working mode of the Turkish coffee machine is different from that of a common traditional coffee machine, a certain amount of Turkish coffee powder is firstly put into the coffee cup, a certain amount of water is added, and then heat is conducted through heating work of a heat pipe under the coffee cup to prepare Turkish coffee.

Most of the existing Turkish coffee machines simply adopt a temperature sensing column to stretch into a coffee cup to realize temperature measurement control, but the temperature sensing column is often contacted with coffee liquid and foam, so that the temperature measurement sensitivity is reduced, the temperature measurement is not accurate, the foam overflowing phenomenon easily occurs for a long time, and the foam overflowing phenomenon can be generated when too much coffee powder is added into the coffee cup in addition, so that the requirement of consumers is difficult to meet.

Disclosure of Invention

An object of the utility model is to above-mentioned problem and not enough, provide a temperature that can guarantee coffee in the coffee cup within predetermineeing the temperature range, can ensure again that the foam can not take place in the heating process and spill over and overflow problem, realize dual guarantee's anti-overflow coffee machine.

On the basis, the utility model further aims to provide an anti-overflow coffee machine which has reliable structure, good decorative effect and beautiful use.

The technical scheme of the utility model is realized like this:

the utility model discloses an anti-overflow coffee machine, which comprises a main body, wherein the main body is provided with a working cavity for placing a coffee cup; the heating assembly is arranged at the bottom of the working cavity or the coffee cup; with heating element electric connection's temperature control mechanism and main control board, its characteristics are: the top of the working cavity is provided with an anti-overflow detection probe piece, the anti-overflow detection probe piece is connected with a control signal input end of the main control panel, the anti-overflow detection probe piece can extend into a coffee cup positioned in the working cavity to detect the height of coffee foam or liquid level, the coffee cup can be smoothly taken out of and loaded into the working cavity through elastic deformation, the main control panel is provided with an anti-overflow control program with preset anti-overflow height and a temperature control program with preset temperature, and when the detected height of the anti-overflow detection probe piece reaches the preset anti-overflow height, the anti-overflow control program controls the heating mode of the heating assembly to be finished or reduces the heating power of the heating assembly to realize low-temperature heating; and when the temperature control mechanism detects the temperature of the coffee cup or the temperature of the coffee in the coffee cup reaches a preset temperature, the heating mode of the heating assembly is controlled to be finished through the temperature control program.

The method for controlling the heating mode of the heating assembly to be finished by the anti-overflow control program can be various, for example, the anti-overflow control program can disconnect the heating circuit of the heating assembly to stop heating the coffee cup; the overflow-proof control program can also be used for switching the heating circuit of the heating assembly to the heat preservation circuit of the heating assembly or the heat preservation circuit set on the main control board, for example, the switching between the heat preservation circuit and the heating circuit can be realized through a selection switch in the control circuit. After the heating mode of the anti-overflow control program for controlling the heating assembly is finished, when the height of coffee foam or liquid level in the coffee cup is lower than the preset anti-overflow height, the anti-overflow detection probe piece is not contacted with the coffee foam or liquid level in the coffee cup, and the main control board enables the heating circuit of the heating assembly to be communicated to restart the heating mode until the heating mode is heated to the preset temperature of the main control board.

The preset anti-overflow height is generally close to or equal to the height of the cup mouth of the coffee cup, and the specific height can be set according to different conditions. The predetermined temperature is generally set to 80-96 degrees, and the specific temperature is determined by the roasting degree of the coffee beans and the desired taste of the coffee for the user.

Preferably, the anti-overflow detection probe piece comprises a probe seat arranged at the top of the working cavity, an elastic sealing column positioned below the probe seat, and a probe arranged at the lower end of the elastic sealing column, wherein the probe is in circuit connection with a control signal input end of the main control board through a lead penetrating through the elastic sealing column, the elastic sealing column enables the probe to extend into the coffee cup to detect the anti-overflow height of coffee foam or liquid level, and when the coffee cup is assembled and disassembled from the working cavity, the elastic sealing column generates elastic bending deformation under the push-pull action of the cup wall of the coffee cup to cross the cup wall and automatically resets through elasticity when the push-pull action of the cup wall is released. The specific structure of the elastic sealing column can be various, for example, the elastic sealing column can be made of silica gel or rubber; the elastic sealing column can also be formed by a hose with a spring inside. Further, the probe seat and the elastic sealing column are integrally formed.

For making the utility model can realize multiple protection in the process of heating and boiling coffee, the temperature control mechanism comprises a bottom temperature sensing control mechanism and an anti-dry heating control mechanism. The bottom temperature sensing control mechanism comprises a temperature sensing head which is arranged at the bottom of the coffee cup and used for sensing the temperature of liquid in the coffee cup, the main control board is electrically connected with the temperature sensing head, when the temperature measured by the temperature sensing head reaches a preset temperature, information is transmitted to the main control board, and the heating circuit of the heating assembly is disconnected or switched to a set heat preservation circuit on the main control board by the temperature control program of the main control board.

In order to make the utility model more beautiful in appearance when in use, the inner cavity wall of the main body working cavity is provided with a background light component which can be used as a decorative background of the coffee cup. The backlight component comprises a light-transmitting plate arranged on the inner side wall of the working cavity and luminous bodies correspondingly arranged on the top or/and the bottom of the working cavity close to the inner side wall, and light rays emitted by the luminous bodies are refracted out through the light-transmitting plate. Of course, the light-emitting body can also be directly arranged between the light-transmitting plate and the inner wall of the working cavity. Preferably two oppositely illuminated lights are mounted in the working chamber near the top and bottom of the inner side wall.

Additionally, the utility model provides a heating element can have multiple scheme, and first scheme is: the heating assembly comprises a group of heating modules arranged at the bottom of the working cavity or the coffee cup, and the heating modules realize the change of the heating power by controlling the voltage or the current by the main control board; the second scheme is as follows: the heating assembly comprises two groups of heating modules, wherein the power of one group of heating modules is greater than that of the other group of heating modules. The heating module is generally a heating plate or a heating tube.

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

the utility model adopts the anti-overflow detection probe structure which is additionally arranged at the top of the working chamber and is used for preventing coffee foam in the coffee cup from overflowing the cup rim, so that the utility model can act on the coffee machine through anti-overflow and temperature control simultaneously in the using process, can directly detect the heating temperature of the coffee cup or coffee in the coffee cup through the temperature control mechanism, and ensures that the temperature of coffee liquid in the coffee cup is within the preset target temperature range; meanwhile, the overflow detection probe piece can ensure that the coffee machine can not generate the problems of overflow bubbles and liquid flow in the process of preparing coffee so as to protect the use safety and the use environmental sanitation of the machine and avoid causing waste. And because the anti-overflow detection probe piece adopts an elastic structure, the coffee cup can be conveniently loaded and unloaded while the detection is convenient, and the structure is simple.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure view of fig. 1.

Fig. 3 is an electrical schematic diagram of the present invention.

Detailed Description

As shown in fig. 1-3, the anti-overflow coffee machine of the present invention comprises a main body 1 and a coffee cup 2, wherein the main body 1 has a working chamber 11 for placing the coffee cup 2 (also called a coffee pot), and the coffee cup has a handle; the heating component is arranged at the bottom of the working cavity 11 or the coffee cup 2; the temperature control mechanism and the main control panel 4 are electrically connected with the heating component, in order to prevent the occurrence of foam overflow or overflow phenomenon in the using process, the utility model adopts that the top of the working cavity 11 is provided with an elastic overflow-proof detection probe piece 3 for preventing coffee foam or liquid in the coffee cup 2 from overflowing the cup mouth, the overflow-proof detection probe piece 3 is connected with the control signal input end of the main control panel 4, the overflow-proof detection probe piece 3 can extend into the coffee cup 2 in the working cavity 11 to measure the height of the coffee foam or the liquid level, the main control panel 4 is provided with an overflow-proof control program (also can be said as an overflow-proof control module) with preset overflow-proof height and a temperature control program (also can be said as a temperature control module) with preset temperature, when the detected height of the overflow-proof detection probe piece 3 reaches the preset overflow-proof height (for example, the coffee foam or the liquid level in the coffee cup 2 rises to be contacted with the overflow-proof detection probe piece 3), the heating mode of the heating assembly is controlled to be finished or the heating power of the heating assembly is reduced through the anti-overflow control program to realize low-temperature mode heating; and when the temperature control mechanism detects that the temperature of the coffee cup 2 or the temperature of the coffee in the coffee cup reaches a preset temperature, the heating mode of the heating assembly is controlled to be finished through the temperature control program. In the process of boiling coffee, on one hand, the heating mode of the heating assembly is controlled by the anti-overflow detection probe piece 3 and the main control board 4 to prevent the occurrence of the overflow bubble phenomenon, and on the other hand, the temperature of the coffee liquid in the coffee cup is ensured within the preset target temperature range by the temperature control mechanism, so that double guarantee is realized. The above-described spill-proof control program and temperature control program are generally provided on an integrated circuit IC of the main control board. The mode that the anti-overflow control program controls the heating mode of the heating assembly to be ended can be that the anti-overflow control program enables the heating circuit of the heating assembly to be disconnected and stops heating the coffee cup 2; or the anti-overflow control program can switch the heating circuit of the heating assembly to the heat preservation circuit of the heating assembly or the heat preservation circuit set on the main control board 4. The heating assembly may be a boiler including a boiler for heating and a thermal insulation heater for keeping warm. It is also possible to provide only one heater and then to heat and keep warm the boiling water by controlling the power. After the heating mode of the anti-overflow control program control heating assembly is finished, when the height of coffee foam or liquid level in the coffee cup is lower than the preset anti-overflow height, the anti-overflow detection probe piece is not contacted with the coffee foam or liquid level in the coffee cup, the main control board enables the heating circuit of the heating assembly to be communicated again to restart the heating mode, if the detected height reaches the preset anti-overflow height, the heating is finished again, and when the detected height is smaller than the preset anti-overflow height, the heating mode is restarted again, namely, the intermittent heating is carried out until the preset temperature of the main control board 4 is heated. And then the temperature control mechanism gives a signal to the main control board, heating is stopped, and the working procedure is ended. If the coffee needs to be kept warm, a warm keeping procedure can also be selected. The preset temperature can be set according to the needs of the user, and is generally set to 80-96 degrees, and the specific temperature is determined according to the roasting degree of the coffee beans and the required taste of the coffee by the user. The anti-overflow height is close to or equal to the height of the cup mouth of the coffee cup 2. In this application, the control of the heating assembly by the temperature control mechanism and the anti-overflow detection probe 3 is not divided in sequence, which is measured first to reach the preset value and which is started first. In the using process of the utility model, the heating temperature of the coffee cup can be directly detected by the temperature control mechanism, and the temperature of the coffee liquid in the coffee cup is ensured to be within the preset target temperature range; meanwhile, the height of foam or liquid level can be measured in real time through the anti-overflow detection probe piece, so that the problem of foam overflow and overflow of the coffee machine in the coffee preparation process is avoided, the use safety and the use environmental sanitation of the coffee machine are protected, coffee waste is avoided, and the problem of foam overflow caused by inaccurate sensitivity of a temperature sensing head and the problem of overflow caused by excessive addition of coffee powder in the conventional coffee machine, which are caused by excessive foam, are effectively solved. And because the anti-overflow detection probe component is positioned above the coffee cup and is not usually inserted into the coffee liquid, the measuring sensitivity of the anti-overflow detection probe component can not be reduced even if the anti-overflow detection probe component is used for a long time, and the structure is reliable. In addition, the anti-overflow detection probe piece is of an elastic structure, so that coffee foam and liquid stained on the anti-overflow detection probe piece can be removed when the coffee cup is loaded and unloaded and the elastic reset is performed, and the use sensitivity of the anti-overflow detection probe piece is ensured. The structure of the heating assembly can be diversified, for example, in order to make the structure simple, the heating assembly comprises a group of heating modules arranged at the bottom of the working cavity 11 or the coffee cup 2, and the heating modules realize the change of the heating power by controlling the voltage by the main control board 4 so as to meet the heating requirements of different periods, such as normal water boiling heating, low-temperature heating and heat preservation. The heating assembly may further comprise two sets of heating modules disposed at the bottom of the working chamber 11 or the coffee cup 2, wherein the power of one set of heating modules is greater than that of the other set of heating modules. When the anti-overflow detection probe component 3 detects that the height of the coffee foam or the liquid level in the coffee cup 2 reaches the anti-overflow height, the high-power heating module is switched to the low-power heating module through the main control board to carry out low-temperature heating until the temperature is preset by the main control board 4. The heating power is preferably controlled by reducing the voltage by the main control board.

As for the specific structure of the anti-overflow detection probe component, it is preferable that the anti-overflow detection probe component 3 includes a probe seat installed on the top of the working chamber 11, an elastic sealing column located below the probe seat, and a probe installed on the lower end of the elastic sealing column, the probe is electrically connected to the control signal input end of the main control board 4 through a wire passing through the elastic sealing column, the elastic sealing column makes the probe extend into the coffee cup to detect the anti-overflow height of coffee foam or liquid level, and when the coffee cup is taken out from the working chamber, the elastic sealing column is bent and deformed under the push-pull action of the cup wall of the coffee cup to cross the cup wall and is automatically reset through elasticity when the push-pull action of the cup wall is released. In addition, the elastic sealing column can be an elastic column made of silica gel; the elastic sealing column can also be formed by a hose with a spring inside. Preferably, the probe seat is integrally formed with the resilient sealing post. As to the control principle of the probe detection, those skilled in the art can easily understand in conjunction with the prior art and will not be described in detail herein.

The temperature control mechanism comprises a bottom temperature sensing control mechanism and an anti-dry heating control mechanism. The bottom temperature sensing control mechanism comprises a temperature sensing head 5 (also called a temperature sensor) which is arranged at the bottom of the coffee cup 2 and used for sensing the temperature of liquid in the coffee cup 2, the main control board 4 is electrically connected with the temperature sensing head 5, and when the temperature measured by the temperature sensing head 5 reaches a set temperature, the main control board 4 disconnects the heating circuit of the heating assembly or converts the temperature into a heat preservation circuit. Of course, the temperature sensing head can also be arranged at other positions of the coffee cup, and the temperature sensing head is equivalent. The dry burning prevention control mechanism comprises an overtemperature protector and a thermal fuse, and belongs to the prior art.

In order to make the utility model more beautiful in appearance when in use, the inner cavity wall of the working cavity 11 of the main body 1 is provided with a background light component which can be used as a decorative background of the coffee cup. The backlight component comprises a light-transmitting plate 6 arranged on the inner side wall of the working cavity 11 and a luminous body 7 correspondingly arranged on the top or/and the bottom of the working cavity 11 close to the inner side wall, and light rays emitted by the luminous body 7 are refracted out through the light-transmitting plate 6. It is preferred that the working chamber is provided with light emitters near the top and bottom of the inner side wall, which light emitters relatively illuminate the light-transmitting plate.

For making the utility model discloses it is more convenient to operate, be equipped with control panel spare 8 in the main part 1, be equipped with a plurality of control button 81 with 4 circuit connection of main control panel on the control panel spare 8. The control keys can comprise a power switch key, a heating key, a heat preservation key, a function key and the like, and the specific setting is determined according to the requirement. The control panel member 8 may be provided on the top surface of the main body 1; the control panel member 8 is preferably positioned below the working chamber of the main body 1. The upper part of the main body is provided with a top cover and a decorative ring. The bottom of the coffee cup is provided with an upper power supply connector, and the bottom of the working cavity is correspondingly provided with a lower power supply connector. The coffee cup realizes the power circuit connection through the matching sleeve of the power upper connector and the power lower connector.

The detailed operation of an embodiment of the present invention will now be described in detail with reference to the accompanying drawings:

the panel of the control panel component is provided with a plurality of control keys, such as a power switch key, a heating key, a heat preservation key, a function key and the like. When the coffee cup is used, after a proper amount of coffee powder and water are added into the coffee cup, a power switch of the coffee machine is turned on, the heating key is selected on the panel, and the heating component starts to heat the coffee cup. When the temperature sensing head senses that the temperature of the coffee in the coffee cup reaches the preset temperature of the main control board, the main control board can disconnect the heating circuit of the heating assembly (for example, a relay of the heating circuit is disconnected), and the heating operation is stopped. If in the heating process, because the foam of coffee in the coffee cup is too much and rises quickly, but the temperature of coffee in the coffee cup does not reach the preset temperature of the main control board, the probe of the anti-overflow detection probe piece senses that the foam reaches the preset anti-overflow height (namely the height of the foam reaches the contact with the probe of the anti-overflow detection probe piece), the probe transmits information to the main control board, the main control board can control the heating circuit of the heating assembly to be switched off, the heating circuit is switched on to start the heating mode after the foam is reduced or the height of the foam is reduced, the heating circuit is switched on and switched off repeatedly in such a way until the foam is heated to the set temperature of the main control board, and finally, the temperature sensing head gives a signal to the main control board to stop heating and end heating work. If the coffee needs to be kept warm, the warm keeping can be selected by pressing the warm keeping button. If the coffee needs to be boiled for a plurality of times, the heating key can be pressed again for heating and boiling again at the later stage.

Although the present invention has been described with reference to particular embodiments, such description is not intended to be construed in a limiting sense. Other variations of the disclosed embodiments, as would be appreciated by those skilled in the art, are contemplated by reference to the description of the invention and are intended to be within the scope of the following claims.

Claims

1. An anti-overflow coffee machine comprising a main body (1), said main body (1) having a working chamber (11) for placing a coffee cup (2); the heating component is arranged at the bottom of the working cavity (11) or the coffee cup (2); with heating element electric connection's temperature control mechanism and main control board (4), its characterized in that: the top of the working cavity (11) is provided with an elastic anti-overflow detection probe piece (3), the anti-overflow detection probe piece (3) is connected with a control signal input end of the main control panel (4), the anti-overflow detection probe piece (3) can extend into a coffee cup in the working cavity (11) to detect the height of coffee foam or liquid level, the coffee cup (2) can be smoothly taken out of and put into the working cavity (11) through elastic deformation, an anti-overflow control program with preset anti-overflow height and a temperature control program with preset temperature are arranged on the main control panel (4), and when the detected height of the coffee foam or liquid level in the coffee cup (2) reaches the preset anti-overflow height, the anti-overflow detection probe piece (3) controls the heating mode of the heating assembly to be finished or reduces the heating power of the heating assembly to realize low-temperature heating; and when the temperature of the coffee cup (2) or the temperature of the coffee in the coffee cup (2) reaches a preset temperature, the temperature control mechanism controls the heating mode of the heating assembly to end through the temperature control program.

2. The overfill prevention coffee machine of claim 1, wherein: the anti-overflow detection probe part (3) comprises a probe seat (31) arranged at the top of the working cavity (11), an elastic sealing column (32) positioned below the probe seat (31), and a probe (33) arranged at the lower end of the elastic sealing column (32), wherein the probe (33) is in circuit connection with a control signal input end of the main control panel (4) through a lead penetrating through the elastic sealing column (32), the elastic sealing column (32) can enable the probe (33) to extend into the coffee cup (2) to detect the height of coffee foam or liquid level, and when the coffee cup (2) is taken out or put in the working cavity (11), the elastic sealing column (32) is elastically bent and deformed under the push-pull action of the cup wall of the coffee cup (2) to cross the cup wall and is automatically reset through elasticity when the push-pull action of the cup wall is removed.

3. The overfill prevention coffee machine of claim 2, wherein: the elastic sealing column (32) is an elastic column made of silica gel or rubber; or the elastic sealing column (32) is formed by a hose with a built-in spring.

4. The overfill prevention coffee machine of claim 2, wherein: the probe seat (31) and the elastic sealing column (32) are integrally formed.

5. The overfill prevention coffee machine of claim 1, wherein: the heating mode of the anti-overflow control program control heating assembly is ended as follows: the anti-overflow control program enables the heating circuit of the heating component to be disconnected to stop heating the coffee cup (2); or the anti-overflow control program switches the heating circuit of the heating assembly to the heat preservation circuit of the heating assembly or the heat preservation circuit set on the main control board (4).

6. The no-spill coffee machine of claim 1 or 5, wherein: after the heating mode of the anti-overflow control program controlled heating assembly is finished, when the height of coffee foam or liquid level in the coffee cup (2) is lower than the preset anti-overflow height, the anti-overflow detection probe piece (3) is not contacted with the coffee foam or liquid level in the coffee cup (2), and the main control board (4) enables the heating circuit of the heating assembly to be communicated again to restart the heating mode until the heating is carried out to the preset temperature of the main control board (4).

7. The overfill prevention coffee machine of claim 1, wherein: the temperature control mechanism comprises a bottom temperature sensing control mechanism and an anti-dry heating control mechanism, the bottom temperature sensing control mechanism comprises a temperature sensing head (5) which is arranged at the bottom of the coffee cup (2) and used for sensing the temperature of liquid in the coffee cup (2), the main control panel (4) is electrically connected with the temperature sensing head (5), when the temperature measured by the temperature sensing head (5) reaches the preset temperature of the main control panel (4), information is transmitted to the main control panel (4), and the temperature control program of the main control panel (4) enables the heating circuit of the heating assembly to be disconnected or switched to the heat preservation circuit of the heating assembly or the heat preservation circuit set on the main control panel (4).

8. The overfill prevention coffee machine of claim 1, wherein: the inner cavity wall of the working cavity (11) of the main body (1) is provided with a background light component which can be used as a decorative background of the coffee cup.

9. The overfill prevention coffee machine of claim 8, wherein: the backlight component comprises a light-transmitting plate (6) arranged on the inner side wall of the working cavity (11) and a luminous body (7) correspondingly arranged on the top or/and the bottom of the working cavity (11) close to the inner side wall, and light emitted by the luminous body (7) is refracted out through the light-transmitting plate (6).

10. The overfill prevention coffee machine of claim 1, wherein: the heating assembly comprises a group of heating modules arranged at the bottom of the working cavity (11) or the coffee cup (2), and the heating modules realize the change of the heating power by controlling the voltage or the current through the main control board (4); or the heating component comprises two groups of heating modules, wherein the power of one group of heating modules is greater than that of the other group of heating modules.