CN117941956A

CN117941956A - Coffee machine

Info

Publication number: CN117941956A
Application number: CN202410289158.9A
Authority: CN
Inventors: 肖佑业
Original assignee: Foshan Delong Chuangxiang Industrial Design Co ltd
Current assignee: Foshan Delong Chuangxiang Industrial Design Co ltd
Priority date: 2024-03-14
Filing date: 2024-03-14
Publication date: 2024-04-30
Anticipated expiration: 2044-03-14
Also published as: CN117941956B

Abstract

The invention relates to the technical field of small household appliances, in particular to a coffee machine, which comprises a liquid storage component, wherein the liquid storage component is provided with a containing cavity and a first liquid outlet, and the containing cavity is communicated with the first liquid outlet; the brewing head assembly is arranged on the liquid storage assembly and is provided with a second liquid outlet; the heating component is used for heating the liquid in the accommodating cavity; the liquid inlet end of the first conveying pipeline is communicated with the first liquid outlet, the liquid outlet end of the first conveying pipeline is communicated with the liquid inlet end of the second conveying pipeline, and the liquid outlet end of the second conveying pipeline is communicated with the second liquid outlet, wherein the second conveying pipeline is at least partially positioned in the accommodating cavity. The second conveying pipeline is arranged in the accommodating cavity, so that the stability of the liquid temperature is kept in the conveying process, the temperature influence of the heated liquid due to cold liquid possibly existing in the conveying pipeline is avoided, and the stability and quality of coffee brewing are improved.

Description

Coffee machine

Technical Field

The invention relates to the technical field of small household appliances, in particular to a coffee machine.

Background

With the improvement of the living standard of people, coffee has become a common drink in daily life. Various types of coffee machines are on the market for making coffee conveniently and quickly. In the prior art, a liquid supply system of a coffee machine generally conveys hot water directly to a brewing device of the coffee machine for performing a coffee brewing process, however, the temperature of liquid conveyed to the brewing device is difficult to control in the liquid conveying process of the liquid supply system, so that the stability of the temperature and flow of the liquid is difficult to ensure, and the taste and quality of coffee are affected.

Disclosure of Invention

Based on this, it is necessary to provide a coffee machine that effectively improves the temperature stability of the liquid during the liquid delivery process, in view of the problem that the liquid temperature of the liquid delivery system of the coffee machine is difficult to control during the liquid delivery process.

The application provides a coffee machine, which comprises a liquid storage assembly, wherein the liquid storage assembly is provided with a containing cavity and a first liquid outlet, and the containing cavity is communicated with the first liquid outlet; the brewing head assembly is arranged on the liquid storage assembly and is provided with a second liquid outlet; the heating component is arranged on the liquid storage component and is used for heating the liquid in the accommodating cavity; the liquid outlet end of the first conveying pipeline is communicated with the liquid inlet end of the second conveying pipeline, the liquid outlet end of the second conveying pipeline is communicated with the second liquid outlet, and the second conveying pipeline is at least partially located in the containing cavity.

According to the coffee machine disclosed by the application, the accommodating cavity and the first liquid outlet are arranged in the liquid storage component, the liquid to be heated is stored in the accommodating cavity, the heating component can ensure that the liquid reaches a proper brewing temperature, and the brewing head component is used for conveying the heated liquid to the coffee powder for brewing. When the user activates the coffee maker, the heating assembly begins to heat the liquid in the holding chamber, ensuring that it reaches the proper brewing temperature. After the liquid reaches the proper temperature, the first conveying pipeline starts to convey the liquid out of the liquid storage component, wherein, it can be understood that the first conveying pipeline is provided with a liquid inlet and a liquid outlet which are communicated, the liquid inlet of the first conveying pipeline is communicated with the liquid storage cavity of the liquid storage component, and the liquid outlet of the first conveying pipeline is communicated with the second conveying pipeline, so that the first conveying pipeline is used as a pipeline communicated between the second conveying pipeline and the liquid storage component, and the liquid in the liquid storage component can be conveyed to the brewing head component through the second conveying pipeline. Because the second conveying pipeline is located at least partially and holds the intracavity, liquid can receive the heating element's in the holding chamber heating effect at the in-process of carrying, moreover, hold and carry out heat transfer between the liquid in the chamber and the liquid of second conveying pipeline, make the second conveying pipeline keep the temperature unanimous with holding the intracavity liquid, avoid holding the intracavity liquid and carry out the intraductal temperature decline that the heat loss caused because of carrying out the heat exchange with the external world in the in-process of carrying out the transportation of second conveying pipeline, thereby keep the temperature stability of liquid, then make the first subassembly of infusing with the stable liquid of heating through the second liquid outlet infuse on the coffee powder, make the good coffee of export sense. The second conveying pipeline at least partially positioned in the accommodating cavity is arranged in the conveying pipeline, so that the stability of the liquid temperature can be kept in the conveying process, and the problem that the temperature is influenced due to the fact that the temperature is possibly influenced by cold liquid in the conveying pipeline in the conveying process or the coffee brewing taste is influenced due to the fact that the temperature is reduced due to the fact that the conveying time and the temperature are lost in a pipeline path is avoided, and the stability and quality of coffee brewing are improved.

In one embodiment, the liquid storage assembly is provided with an opening, the opening is communicated with the accommodating cavity, one end of the brewing head assembly is positioned at the opening, and the other end of the brewing head assembly is used for being connected with the brewing cup. Through offer an opening on the stock solution subassembly for dash and steep first subassembly and can directly link to each other with holding the chamber, thereby improve the stock solution subassembly and dash the degree of integration of steeping the head, make overall structure simplify more and compact, still made things convenient for the second pipeline to pass and hold the chamber and pass through the installation of steeping the head moreover. Further, the liquid inlet end of the second conveying pipeline is arranged on the liquid storage assembly, the liquid outlet end of the second conveying pipeline is arranged on the brewing head, and therefore, the second conveying pipeline is connected with the pipeline between the liquid inlet end and the liquid outlet end of the second conveying pipeline to penetrate through the containing cavity, and accordingly the second conveying pipeline can be heated by the heating assembly again, or the second conveying pipeline can keep temperature stability under the action of liquid heat conduction of the containing cavity, and then is directly conveyed to the brewing head, the pipeline path between the reheated liquid and the brewing head can be greatly reduced, temperature loss in the conveying process is avoided, and the problem that the temperature difference between the liquid conveyed to the brewing head and the liquid of the containing cavity regulated and controlled by the temperature is large can be well solved.

In one embodiment, the liquid storage assembly is provided with a first mounting hole, the brewing head assembly is provided with a second mounting hole, the first mounting hole and the second mounting hole are communicated with the accommodating cavity, the liquid inlet end of the second conveying pipeline penetrates through the first mounting hole, and the liquid outlet end of the second conveying pipeline penetrates through the second mounting hole. Wherein, in the first mounting hole was worn to locate by the feed liquor end of second pipeline, in the second mounting hole was worn to locate by the play liquid end for after the second pipeline was through installing in above-mentioned first mounting hole and the second mounting hole, its second pipeline's outer wall can carry out direct contact with the liquid that holds the intracavity heating, has shortened greatly because the temperature loss that the delivery path led to influences coffee brewing temperature's stability, moreover, this simple structure is compact.

Further, in order to improve the connection sealability between the second conveying pipeline and the first mounting hole and between the second conveying pipeline and the second mounting hole, sealing rings are arranged between the second conveying pipeline and the first mounting hole and between the second conveying pipeline and the second mounting hole, so that the problem of leakage is avoided.

In more detail, the second transfer duct may be made of a material having a high thermal conductivity through the duct of the receiving chamber, which may make the heat conduction more effective. For example, the pipe portion of the second conveying pipe may be made of a material having excellent heat conductive properties such as copper, aluminum, silver, or the like.

In one embodiment, the liquid storage assembly comprises a liquid storage body and a first connecting portion, the liquid storage body is provided with the accommodating cavity and the opening, the first connecting portion is arranged on the liquid storage body, the brewing head assembly comprises a brewing head body and a second connecting portion, and the first connecting portion is connected with the second connecting portion. Specifically, the liquid storage body refers to a component with a liquid storage function, the first connecting part is arranged on the liquid storage body and used as a component connected with the brewing head component, the brewing head component comprises a brewing head body and a second connecting part, the second connecting part is arranged on the brewing head and used as a component connected with the liquid storage component, and the liquid storage component is connected with the brewing head component by connecting the first connecting part with the second connecting part, so that a closed accommodating cavity for storing liquid is enclosed between the liquid storage component and the brewing head component. Furthermore, the first connecting part and the second connecting part are provided with corresponding connecting holes for the connecting pieces to pass through, and the connecting pieces can also adopt components such as bolts and screws to tightly connect the first connecting part and the second connecting part together.

In one embodiment, a seal is also included that abuts between the sidewall of the opening and the brew head assembly to seal the connection between the reservoir assembly and the brew head assembly. The sealing piece ensures that the joint between the liquid storage component and the brewing head component is completely sealed, so that liquid leakage is effectively prevented, heat loss is reduced, the temperature stability of coffee is kept, the taste and quality of the coffee are improved, and the corrosion of water vapor, water drops and other liquid or gas to parts inside the coffee machine can be reduced by effectively sealing the connection between the liquid storage component and the brewing head component, the service life of the coffee machine is prolonged, and the structural compactness and the reliability of the liquid storage component and the brewing head are ensured.

In one embodiment, the heating assembly includes a heating tube at least partially within the receiving cavity. Because the heating pipe is at least partially positioned in the accommodating cavity, the heating pipe is directly contacted with the liquid, and the liquid can be uniformly heated. This ensures a consistency of the temperature of the whole liquid during heating, thereby improving the brewing quality and mouthfeel of the coffee.

Of course, it will be understood that the present application is not limited to the heating device using a heating pipe, and the heating device may be a heating wire, a PTC heater, etc., and the liquid in the accommodating chamber may be heated efficiently and stably.

In one embodiment, the device further comprises a flow regulating assembly, wherein the flow regulating assembly is arranged on the first conveying pipeline and is respectively communicated with the liquid outlet end of the first conveying pipeline and the liquid inlet end of the second conveying pipeline, and the flow regulating assembly is used for controlling the first conveying pipeline to convey liquid to the second conveying pipeline. Through setting up flow control subassembly, can the accurate control first pipeline to the liquid flow of second pipeline transport, help guaranteeing liquid flow's stability and accuracy. Thus, the user can adjust the flow adjusting component to adjust the shade degree and the taste of the coffee according to the taste preference or the coffee variety, and personalized coffee brewing is realized.

In detail, the flow regulating assembly can adopt an electronic control pump device, the power of the pump is regulated to regulate the flow of the liquid conveyed by the first conveying pipeline to the second conveying pipeline, and the arrangement of the pump can also provide enough power for conveying the liquid.

In one embodiment, the flow regulating assembly comprises a valve seat assembly and a movable valve, the valve seat assembly is provided with a liquid outlet channel and a liquid inlet hole, the liquid outlet channel is communicated with the liquid inlet hole, the movable valve is arranged on the valve seat assembly, and the movable valve can move relative to the liquid inlet hole so that the size of a gap formed between the movable valve and the liquid inlet hole is changed. Specifically, the flow valve is adopted as the flow regulating component, and the size of the gap between the movable valve and the liquid inlet hole can be accurately regulated by controlling the movement of the movable valve relative to the liquid inlet hole, so that the flow of liquid flowing through is controlled, the flow regulation is more accurate and flexible, and the requirements of users on different delicious coffee are met.

Further, the movable valve can be designed into a valve body with gradually changed sectional area along the movement direction relative to the liquid inlet, so that the sectional area of a pore canal in the liquid inlet is unchanged; or the sectional area of the pore canal in the liquid inlet hole is gradually changed along the moving direction of the movable valve, and the movable valve adopts a rod body with the same sectional area, so that the size of a gap formed between the movable valve and the liquid inlet hole is changed by controlling the movement of the movable valve relative to the liquid inlet hole. The present application is not limited to the above-described design, as long as the size of the gap formed between the two can be changed according to the relative movement of the two.

In one embodiment, the valve seat assembly is provided with a sliding hole, the movable valve is nested in the sliding hole, a first thread is arranged on the outer surface of the movable valve, a second thread is arranged on the inner surface of the sliding hole, and the first thread is matched with the second thread. Through the looks adaptation of first screw thread and second screw thread, thereby through with the movable valve for the slip hole slides certain pitch thereby realize driving the movable valve for the valve seat subassembly motion process for the movable valve can be in the slip hole steady motion, is favorable to the accurate regulation of flow, has still simplified the structure between movable valve and the valve seat subassembly, has ensured the stationarity and the reliability of flow control of coffee machine in the use.

In one embodiment, the valve seat assembly further comprises a driving assembly connected with the movable valve, and the driving assembly is used for driving the movable valve to move relative to the valve seat assembly. Through being connected drive assembly and movable valve, thus, thereby the user can directly drive the motion of movable valve through the mode of controlling drive assembly, is favorable to the steady motion of movable valve, on the other hand for the brewing process of coffee is more controllable, can adjust according to user's taste preference, and the user can control drive assembly through simple operation, thereby realizes the control of flow control. This makes the operation of the coffee maker more convenient and user friendly.

For example, the drive assembly includes a drive rod coupled to the movable valve for driving the movable valve to rotate relative to the valve seat assembly. Under the condition that the movable valve and the valve seat assembly are connected through threads in the embodiment, the driving rod can drive the movable valve to rotate according to the design, so that a user can directly push the driving rod to enable the movable valve to move relative to the valve seat assembly, and under different positions, gaps between the movable valve and the liquid inlet hole are changed, and the effect of adjusting flow is achieved.

In other embodiments, the drive assembly includes a knob coupled to the movable valve for driving the movable valve to rotate relative to the valve seat assembly. By providing the drive assembly as a knob, the user can directly operate the movable valve through the knob, adjusting its position to vary the flow. The knob is connected to the movable valve, for example, a corresponding scale is arranged on the knob, the scale corresponds to the position of the knob which drives the movable valve to move relative to the liquid inlet hole, and the corresponding liquid inlet flow is arranged at the position, so that a user can finely adjust the position of the movable valve according to the requirement, and the flow is controlled more finely.

In other embodiments, the drive assembly includes a worm, the movable valve is provided with an engagement portion, and the worm is in meshed transmission with the engagement portion. By arranging the driving assembly as a worm, the rotation of the worm can transmit force or torque to the meshing part of the movable valve, so that the movable valve is driven to move relative to the liquid inlet hole. Further, worm drives are typically capable of providing smooth rotational movement, thereby making the adjustment of the movable valve smoother, avoiding possible abrupt changes or shocks. And the combination of the worm and the meshing part can realize smaller-amplitude adjustment, so that the adjustment process is more accurate, and the effect of changing the liquid inlet flow can be realized by connecting a driving motor on the worm or directly manually driving by a user.

In one embodiment, the coffee machine further comprises a liquid draining system, wherein the liquid draining system is used for draining liquid in the coffee machine, the liquid draining system comprises a pressure relief assembly, the pressure relief assembly is provided with a liquid inlet and a third liquid outlet, the liquid inlet is communicated with the first conveying pipeline and/or the second conveying pipeline, the pressure relief assembly is further provided with a buffer cavity, and the buffer cavity is communicated with the liquid inlet and the third liquid outlet. Wherein, drain system can be used for discharging the liquid in the coffee machine, through being equipped with the pressure release subassembly on drain system, is equipped with the cushion chamber on the pressure release subassembly, like this, can get into the cushion chamber earlier before liquid discharge and cushion in the discharge through the third liquid outlet to reduce the pressure of rivers, reduced the impact force of rivers, avoided directly causing the impact to the liquid outlet end, avoided the pipeline internal pressure great or direct impact probably to lead to splash and noise problem. The buffer cavity in the pressure relief assembly can help to relieve the pressure of the pipeline inside the coffee machine, and avoid damage to the coffee machine or other conditions affecting the user experience caused by overlarge liquid pressure.

In one embodiment, the pressure relief assembly comprises a housing member and a partition plate, a cavity is formed in the housing member, the partition plate is arranged in the housing member, the partition plate separates the cavity to form a buffer cavity and a liquid outlet cavity, the buffer cavity is communicated with the liquid outlet cavity, and the liquid outlet cavity is communicated with the third liquid outlet. Through using shell spare and baffle, can be simply effectively divide into buffering and play two parts with pressure release subassembly, the space of cavity is utilized more effectively for two processes of buffering and flowing back can accomplish in compact cavity. Wherein, because the inlet of pressure release subassembly probably receives the liquid that has heated, high pressure and is quick, can produce the high-pressure zone in the inlet department, thereby the velocity of flow reduces the pressure along with the liquid flows into the buffering intracavity and buffers, and then, liquid after buffering gets into the liquid chamber, discharges through the liquid outlet steadily at last. In the process, due to the design of the buffer cavity and the liquid outlet cavity, liquid can flow out under lower pressure, so that pressure fluctuation during liquid discharge is avoided, and the stability and durability of the coffee machine are protected.

Drawings

FIG. 1 is a schematic view of a coffee maker according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a coffee maker according to an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a partial enlarged view at B of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a schematic diagram illustrating the connection between a liquid storage assembly and a brew head assembly according to an embodiment of the present application;

FIG. 7 is an exploded view of a reservoir assembly and a brew head assembly according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a flow regulating assembly according to an embodiment of the present application;

FIG. 9 is a cross-sectional view of a flow regulating assembly according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a pressure relief assembly according to an embodiment of the present application;

fig. 11 is an exploded view of a pressure relief assembly according to an embodiment of the present application.

Fig. 12 is a cross-sectional view of a pressure relief assembly according to an embodiment of the present application.

Fig. 13 is a schematic view showing liquid delivery of the coffee maker according to an embodiment of the present application.

Wherein, the correspondence between the reference numerals and the component names is:

1a liquid storage component, a 101 accommodating cavity, a 102 first liquid outlet, a 103 first mounting hole, a 104 second mounting hole, a 11 liquid storage body and a 12 first connecting part;

2a brewing head assembly, 201 a second liquid outlet, 21 a brewing head body, 22 a second connecting part;

3, a heating assembly;

4a first delivery conduit;

5a second conveying pipeline;

6 flow regulating components, 601 liquid inlet holes, 61 valve seat components, 62 movable valves and 63 driving components;

7, sealing piece;

the pressure relief assembly comprises an 8 pressure relief assembly, an 801 liquid inlet, an 802 third liquid outlet, an 803 buffer cavity, an 804 liquid outlet cavity, an 81 shell piece and an 82 partition plate.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Some embodiments of the coffee maker according to the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1 to 13, one embodiment of the present application discloses a coffee machine, which comprises a liquid storage assembly 1, wherein the liquid storage assembly 1 is provided with a containing cavity 101 and a first liquid outlet 102, and the containing cavity 101 is communicated with the first liquid outlet 102; the brewing head assembly 2 is arranged on the liquid storage assembly 1, and the brewing head assembly 2 is provided with a second liquid outlet 201; a heating component 3, the heating component 3 is arranged on the liquid storage component 1, and the heating component 3 is used for heating the liquid in the accommodating cavity 101; the first conveying pipeline 4 and the second conveying pipeline 5, the liquid inlet end of the first conveying pipeline 4 is communicated with the first liquid outlet 102, the liquid outlet end of the first conveying pipeline 4 is communicated with the liquid inlet end of the second conveying pipeline 5, the liquid outlet end of the second conveying pipeline 5 is communicated with the second liquid outlet 201, and the second conveying pipeline 5 is at least partially located in the containing cavity 101.

The coffee machine disclosed by the application is provided with the accommodating cavity 101 and the first liquid outlet 102 in the liquid storage assembly 1, liquid to be heated is stored in the accommodating cavity 101, the liquid can reach a proper brewing temperature through the heating assembly 3, and the brewing head assembly 2 is used for delivering the heated liquid to the coffee powder for brewing. When the user activates the coffee maker, the heating assembly 3 starts heating the liquid inside the containing chamber 101, ensuring that it reaches the proper brewing temperature. After the liquid reaches a suitable temperature, the first conveying pipeline 4 starts to convey the liquid out of the liquid storage component 1, wherein it is understood that the first conveying pipeline 4 is provided with a liquid inlet and a liquid outlet which are communicated, the liquid inlet of the first conveying pipeline 4 is communicated with the liquid storage cavity of the liquid storage component 1, the liquid outlet of the first conveying pipeline 4 is communicated with the second conveying pipeline, and thus, the first conveying pipeline 4 is used as a pipeline communicated between the second conveying pipeline 5 and the liquid storage component 1, so that the liquid in the liquid storage component can be conveyed to the brewing head component 2 through the second conveying pipeline 5. Because the second conveying pipeline 5 is at least partially located in the accommodating cavity 101, the liquid can be heated by the heating component 3 in the accommodating cavity 101 in the conveying process, and heat transfer is performed between the liquid in the accommodating cavity 101 and the liquid in the second conveying pipeline 5, so that the temperature of the second conveying pipeline 5 is kept consistent with that of the liquid in the accommodating cavity 101, the temperature in a pipe is prevented from being reduced due to heat dissipation caused by heat exchange with the outside in the conveying process of the liquid in the accommodating cavity 101 through the second conveying pipeline 5, the temperature stability of the liquid is kept, and then the heated liquid is brewed on coffee powder through the second liquid outlet 201 by the brewing head component 2, so that coffee with good outlet feel is manufactured. The second conveying pipeline 5 at least partially positioned in the accommodating cavity 101 is arranged in the conveying pipeline, so that the stability of the liquid temperature can be maintained in the conveying process, and the problem that the temperature of the heated liquid influences the temperature in the conveying pipeline possibly due to cold liquid in the conveying pipeline or influences the coffee brewing taste due to temperature reduction caused by conveying time and temperature loss in a pipeline path in the conveying process is avoided, so that the stability and quality of coffee brewing are improved.

As shown in fig. 2 and 7, this embodiment further defines, in addition to the features of the above-described embodiment: the liquid storage assembly 1 is provided with an opening which is communicated with the accommodating cavity 101, one end of the brewing head assembly 2 is positioned at the opening, and the other end of the brewing head assembly 2 is used for being connected with a brewing cup. Through offer an opening on stock solution subassembly 1 for brewing first subassembly 2 can directly link to each other with holding chamber 101, thereby improve stock solution subassembly 1 and the degree of integration of brewing the head, make overall structure simplify more and compact, have also made things convenient for the second pipeline 5 to pass and hold chamber 101 and pass through the installation of brewing the head moreover. Further, the liquid inlet end of the second conveying pipeline 5 is arranged on the liquid storage component 1, and the liquid outlet end of the second conveying pipeline 5 is arranged on the brewing head, so that the pipeline between the liquid inlet end and the liquid outlet end of the second conveying pipeline 5 is connected with the second conveying pipeline to pass through the containing cavity 101, and can be heated by the heating component 3 again, or the liquid can keep the stability of temperature under the heat conduction effect of the liquid in the containing cavity 101, and then the liquid can be directly conveyed to the brewing head, so that the pipeline path between the reheated liquid and the brewing head can be greatly reduced, the temperature loss in the conveying process is avoided, and the problem that the temperature difference between the liquid conveyed to the brewing head and the liquid in the containing cavity 101 regulated and controlled by the temperature is large can be well solved.

As shown in fig. 2,3 and 5, this embodiment further defines, in addition to the features of the above-described embodiment: the liquid storage component 1 is provided with a first mounting hole 103, the brewing head component 2 is provided with a second mounting hole 104, the first mounting hole 103 and the second mounting hole 104 are communicated with the accommodating cavity 101, the liquid inlet end of the second conveying pipeline 5 is arranged in the first mounting hole 103 in a penetrating manner, and the liquid outlet end of the second conveying pipeline 5 is arranged in the second mounting hole 104 in a penetrating manner. Wherein, in the first mounting hole 103 was worn to locate by the feed liquor end of second pipeline 5, in the second mounting hole 104 was worn to locate by the play liquid end for second pipeline 5 is through installing after in above-mentioned first mounting hole 103 and second mounting hole 104, and the outer wall of its second pipeline 5 can carry out direct contact with the liquid that holds the intracavity 101 heating, has shortened greatly because the temperature loss that the delivery path leads to influences coffee brewing temperature's stability, moreover, this simple structure is compact.

Further, in order to improve the connection sealability between the second conveying pipe 5 and the first mounting hole 103 and the second mounting hole 104, sealing rings are provided between the second conveying pipe 5 and the first mounting hole 103 and between the second conveying pipe 5 and the second mounting hole 104, thereby avoiding occurrence of leakage.

In more detail, the passage of the second delivery duct 5 through the housing chamber 101 may be made of a material having a strong thermal conductivity, which may make the effect of heat conduction better. For example, the pipe portion of the second conveying pipe 5 may be made of a material having excellent heat conductive properties such as copper, aluminum, silver, or the like.

As shown in fig. 6 and 7, this embodiment further defines, in addition to the features of the above-described embodiment: the liquid storage assembly 1 comprises a liquid storage body 11 and a first connecting portion 12, the liquid storage body 11 is provided with a containing cavity 101 and an opening, the first connecting portion 12 is arranged on the liquid storage body 11, the brewing head assembly 2 comprises a brewing head body 21 and a second connecting portion 22, and the first connecting portion 12 is connected with the second connecting portion 22. Specifically, the liquid storage body 11 refers to a component having a liquid storage function, the first connection portion 12 is provided on the liquid storage body 11 as a component connected with the brewing head component, the brewing head component 2 includes a brewing head body 21 and a second connection portion 22, the second connection portion 22 is provided on the brewing head as a component connected with the liquid storage component 1, and the liquid storage component 1 and the brewing head component 2 are connected by connecting the first connection portion 12 and the second connection portion 22 together so that a closed accommodating cavity 101 for storing liquid is enclosed between them. Further, the first connecting portion 12 and the second connecting portion 22 are provided with corresponding connecting holes for the connecting pieces to pass through, and the connecting pieces can also adopt components such as bolts and screws to tightly connect the first connecting portion 12 and the second connecting portion 22 together.

As shown in fig. 2, this embodiment further defines, in addition to the features of the above-described embodiment: and a sealing element 7, wherein the sealing element 7 is abutted between the side wall of the opening and the brewing head assembly 2 to seal the connection between the liquid storage assembly 1 and the brewing head assembly 2. The sealing piece 7 ensures that the joint between the liquid storage component 1 and the brewing head component 2 is completely sealed, so that liquid leakage is effectively prevented, heat loss is reduced, the temperature stability of coffee is kept, the taste and quality of the coffee are improved, and the corrosion of water vapor, water drops and other liquid or gas to parts inside the coffee machine can be reduced by effectively sealing the joint between the liquid storage component 1 and the brewing head component 2, the service life of the coffee machine is prolonged, and the structural compactness and the reliability of the liquid storage component 1 and the brewing head are ensured.

As shown in fig. 2 and 7, this embodiment further defines, in addition to the features of the above-described embodiment: the heating assembly 3 comprises a heating tube at least partially located within the receiving chamber 101. Since the heating tube is at least partially located in the receiving chamber 101, the heating tube is in direct contact with the liquid, a uniform heating of the liquid can be achieved. This ensures a consistency of the temperature of the whole liquid during heating, thereby improving the brewing quality and mouthfeel of the coffee.

In more detail, the heating tube is wound on the outside of the second delivery duct 5, and is designed as a serpentine duct and is arranged in the centre of the receiving chamber 101, so that the liquid in the liquid storage chamber is heated more uniformly, and the liquid in the infusion channel is heated more rapidly, which further improves the mouthfeel and quality of the coffee.

It should be understood that the present application is not limited to the heating method of the heating unit 3, and the heating unit 3 may be a heating wire, a PTC heater, etc., and the liquid in the accommodating chamber 101 may be efficiently and stably heated.

As shown in fig. 2, 8, 9 and 13, this embodiment further defines, in addition to the features of the above-described embodiment: still include flow control assembly 6, flow control assembly 6 sets up on first pipeline 4, and flow control assembly 6 communicates the liquid end of first pipeline 4 and the feed liquor end of second pipeline 5 respectively, and flow control assembly 6 is used for controlling the liquid of first pipeline 4 to second pipeline 5 transport. By providing the flow regulating assembly 6, the flow rate of the liquid conveyed from the first conveying pipeline 4 to the second conveying pipeline 5 can be accurately controlled, and stability and accuracy of the flow rate of the liquid can be ensured. In this way, the user can adjust the flow regulating assembly 6 to adjust the coffee shade and taste according to the taste preference or coffee variety, so as to realize personalized coffee brewing.

In detail, the flow regulating assembly 6 may employ an electronically controlled pump device, which adjusts the power of the pump to thereby regulate the flow of liquid delivered by the first delivery conduit 4 to the second delivery conduit 5, and the pump may be arranged to provide sufficient power for the delivery of liquid.

As shown in fig. 8 and 9, this embodiment further defines, in addition to the features of the above-described embodiment: the flow regulating assembly 6 comprises a valve seat assembly 61 and a movable valve 62, the valve seat assembly 61 is provided with a liquid outlet channel and a liquid inlet hole 601, the liquid outlet channel is communicated with the liquid inlet hole 601, the movable valve 62 is arranged on the valve seat assembly 61, and the movable valve 62 can move relative to the liquid inlet hole 601 so that the size of a gap formed between the movable valve 62 and the liquid inlet hole 601 is changed. Specifically, the flow valve is adopted as the flow regulating component 6 in the embodiment, and the size of the gap between the movable valve 62 and the liquid inlet 601 can be accurately regulated by controlling the movement of the movable valve 62 relative to the liquid inlet 601, so that the flow of liquid can be controlled, the flow regulation is more accurate and flexible, and the requirements of users on different coffee with different tastes can be met.

Further, the movable valve 62 can be designed into a valve body with gradually changed sectional area along the moving direction relative to the liquid inlet 601, so that the sectional area of a pore canal in the liquid inlet 601 is unchanged; or the sectional area of the pore canal in the liquid inlet 601 is gradually changed along the moving direction of the movable valve 62, and the movable valve 62 adopts a rod body with the same sectional area, so that the size of a gap formed between the movable valve 62 and the liquid inlet 601 is changed by controlling the movement of the movable valve 62 relative to the liquid inlet 601. The present application is not limited to the above-described design, as long as the size of the gap formed between the two can be changed according to the relative movement of the two.

As shown in fig. 9, this embodiment further defines, in addition to the features of the above-described embodiment: the valve seat assembly 61 is provided with a sliding hole, the movable valve 62 is nested in the sliding hole, the outer surface of the movable valve 62 is provided with first threads, the inner surface of the sliding hole is provided with second threads, and the first threads are matched with the second threads. Through the adaptation of the first thread and the second thread, the movable valve 62 slides a certain pitch relative to the sliding hole, so that the process of driving the movable valve 62 to move relative to the valve seat assembly 61 is realized, the movable valve 62 can move stably in the sliding hole, accurate adjustment of flow is facilitated, the structure between the movable valve 62 and the valve seat assembly 61 is simplified, and the stability and reliability of flow adjustment of the coffee machine in the use process are ensured.

It will be appreciated that the first thread and the second thread being adapted means that the movable valve 62 and the valve seat assembly 61 can be engaged by a threaded connection.

As shown in fig. 8, this embodiment further defines, in addition to the features of the above-described embodiment: further included is a drive assembly 63, the drive assembly 63 being coupled to the movable valve 62, the drive assembly 63 being configured to drive the movable valve 62 relative to the valve seat assembly 61. Through being connected drive assembly 63 with movable valve 62, thus, thereby the user can directly drive the motion of movable valve 62 through the mode of controlling drive assembly 63, is favorable to the steady motion of movable valve 62, on the other hand, makes the brewing process of coffee more controllable, can adjust according to user's taste preference, and the user can control drive assembly 63 through simple operation to realize the control of flow control. This makes the operation of the coffee maker more convenient and user friendly.

For example, the drive assembly 63 includes a drive rod coupled to the movable valve 62 for driving the movable valve 62 in rotation relative to the valve seat assembly 61. In combination with the above embodiment, in the case that the movable valve 62 and the valve seat assembly 61 are in threaded connection, the driving rod can drive the movable valve 62 to rotate according to design, so that a user can directly push the driving rod to enable the movable valve 62 to move relative to the valve seat assembly 61, and under different positions, the clearance between the movable valve 62 and the liquid inlet 601 is changed, thereby playing a role in adjusting flow.

In other embodiments, the drive assembly 63 includes a knob coupled to the movable valve 62 for driving the movable valve 62 in rotation relative to the valve seat assembly 61. By providing the drive assembly 63 as a knob, the user can directly operate the movable valve 62 through the knob, adjusting its position to vary the flow. The knob is connected to the movable valve 62, for example, a corresponding scale is provided on the knob, and the scale corresponds to a position of the knob which drives the movable valve 62 to move relative to the liquid inlet 601 at the position, and a corresponding liquid inlet flow rate at the position, so that a user can fine-tune the position of the movable valve 62 as required, thereby controlling the flow rate more finely.

In other embodiments, the drive assembly 63 includes a worm with which the movable valve 62 is in meshed communication with an engagement portion. By providing the drive assembly 63 as a worm, rotation of the worm may transmit force or torque to the engagement portion of the movable valve 62, thereby moving the movable valve 62 relative to the inlet 601. Further, the worm drive is typically capable of providing a smooth rotational movement, thereby making the adjustment of the movable valve 62 smoother, avoiding possible abrupt changes or shocks. And the combination of the worm and the meshing part can realize smaller-amplitude adjustment, so that the adjustment process is more accurate, and the effect of changing the liquid inlet flow can be realized by connecting a driving motor on the worm or directly manually driving by a user.

As shown in fig. 2 and 10, this embodiment further defines, in addition to the features of the above-described embodiment: still include the flowing back system, the flowing back system is used for discharging the liquid in the coffee machine, and the flowing back system includes pressure release subassembly 8, and pressure release subassembly 8 is equipped with inlet 801 and third liquid outlet 802, and inlet 801 and first pipeline 4 and/or second pipeline 5 intercommunication, pressure release subassembly 8 still are equipped with the cushion chamber 803, and cushion chamber 803 communicates inlet 801 and third liquid outlet 802. Wherein, drain system can be used for discharging the liquid in the coffee machine, through being equipped with pressure release subassembly 8 on drain system, be equipped with buffering chamber 803 on the pressure release subassembly 8, like this, can get into buffering chamber 803 earlier before liquid discharges and cushion in the discharge through third liquid outlet 802 to reduce the pressure of rivers, reduced the impact force of rivers, avoided directly causing the impact to the play liquid end, avoided the pipeline internal pressure great or direct impact probably resulting in splash and noise problem. The buffer chamber 803 in the pressure relief assembly 8 can help to relieve the pressure in the tubing inside the coffee machine, and avoid damaging the coffee machine due to excessive liquid pressure or other conditions that affect the user experience.

As shown in fig. 11 and 12, this embodiment further defines, in addition to the features of the above-described embodiment: the pressure release assembly 8 comprises a shell member 81 and a partition plate 82, wherein a cavity is formed in the shell member 81, the partition plate 82 is arranged in the shell member 81, the partition plate 82 separates the cavity to form a buffer cavity 803 and a liquid outlet cavity 804, the buffer cavity 803 is communicated with the liquid outlet cavity 804, and the liquid outlet cavity 804 is communicated with a third liquid outlet 802. By using the housing member 81 and the partition 82, the pressure relief assembly 8 can be simply and effectively divided into two parts, namely buffering and discharging, and the space of the cavity can be more effectively utilized, so that the buffering and discharging processes can be completed in a compact cavity. Wherein, because the liquid inlet 801 of the pressure relief assembly 8 may receive heated, high-pressure and rapid liquid, a high-pressure area is generated at the liquid inlet, and the liquid flows into the buffer chamber 803 for buffering, the flow speed is reduced to reduce the pressure, then the buffered liquid enters the liquid outlet 804, and finally is smoothly discharged through the liquid outlet. In this process, due to the design of the buffer cavity 803 and the liquid outlet cavity 804, the liquid can flow out under lower pressure, so that pressure fluctuation during liquid discharge is avoided, and the stability and durability of the coffee machine are protected.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A coffee machine, comprising:

The liquid storage assembly (1), the liquid storage assembly (1) is provided with a containing cavity (101) and a first liquid outlet (102), and the containing cavity (101) is communicated with the first liquid outlet (102);

the brewing head assembly (2), the brewing head assembly (2) is arranged on the liquid storage assembly (1), and the brewing head assembly (2) is provided with a second liquid outlet (201);

A heating assembly (3), wherein the heating assembly (3) is arranged on the liquid storage assembly (1), and the heating assembly (3) is used for heating the liquid in the accommodating cavity (101);

First pipeline (4) and second pipeline (5), the feed liquor end of first pipeline (4) with first liquid outlet (102) intercommunication, the liquid outlet end of first pipeline (4) with the feed liquor end intercommunication of second pipeline (5), the liquid outlet end of second pipeline (5) with second liquid outlet (201) intercommunication, wherein, second pipeline (5) are located at least partly hold chamber (101).

2. A coffee machine according to claim 1, wherein the liquid storage assembly (1) is provided with an opening communicating with the containing cavity (101), one end of the brew head assembly (2) being located at the opening, the other end of the brew head assembly (2) being adapted to be connected to a brew cup.

3. The coffee machine according to claim 2, wherein the liquid storage assembly (1) is provided with a first mounting hole (103), the brewing head assembly (2) is provided with a second mounting hole (104), the first mounting hole (103) and the second mounting hole (104) are communicated with the accommodating cavity (101), a liquid inlet end of the second conveying pipeline (5) is arranged in the first mounting hole (103) in a penetrating manner, and a liquid outlet end of the second conveying pipeline (5) is arranged in the second mounting hole (104) in a penetrating manner.

4. A coffee machine according to claim 2, wherein the liquid storage assembly (1) comprises a liquid storage body (11) and a first connection (12), the liquid storage body (11) being provided with the receiving cavity (101) and the opening, the first connection (12) being provided on the liquid storage body (11), the brew head assembly (2) comprising a brew head body (21) and a second connection (22), the first connection (12) being connected to the second connection (22); and/or

The sealing element (7) is abutted between the side wall of the opening and the brewing head assembly (2) so as to seal the connection between the liquid storage assembly (1) and the brewing head assembly (2); and/or

The heating assembly (3) comprises a heating tube at least partially located within the receiving cavity (101).

5. Coffee machine according to any one of claims 1 to 4, further comprising a flow regulating assembly (6), said flow regulating assembly (6) being arranged on said first delivery duct (4), said flow regulating assembly (6) being in communication with the outlet end of said first delivery duct (4) and with the inlet end of said second delivery duct (5), respectively, said flow regulating assembly (6) being adapted to control the delivery of liquid from said first delivery duct (4) to said second delivery duct (5).

6. The coffee machine according to claim 5, characterized in that the flow regulating assembly (6) comprises a valve seat assembly (61) and a movable valve (62), the valve seat assembly (61) is provided with a liquid outlet channel and a liquid inlet hole (601), the liquid outlet channel is communicated with the liquid inlet hole (601), the movable valve (62) is arranged on the valve seat assembly (61), and the movable valve (62) can move relative to the liquid inlet hole (601) so that the size of a gap formed between the movable valve (62) and the liquid inlet hole (601) is changed.

7. The coffee machine of claim 6, wherein the valve seat assembly (61) is provided with a sliding hole, the movable valve (62) is nested in the sliding hole, the outer surface of the movable valve (62) is provided with first threads, the inner surface of the sliding hole is provided with second threads, and the first threads are matched with the second threads.

8. The coffee machine of claim 6, further comprising a drive assembly (63), the drive assembly (63) being connected to the movable valve (62), the drive assembly (63) being configured to drive the movable valve (62) in movement relative to the valve seat assembly (61).

9. Coffee machine according to any one of claims 1 to 4, further comprising a drainage system for draining liquid in the coffee machine, the drainage system comprising a pressure relief assembly (8), the pressure relief assembly (8) being provided with a liquid inlet (801) and a third liquid outlet (802), the liquid inlet (801) being in communication with the first delivery duct (4) and/or the second delivery duct (5), the pressure relief assembly (8) being further provided with a buffer chamber (803), the buffer chamber (803) being in communication with the liquid inlet (801) and the third liquid outlet (802).

10. The coffee machine of claim 9, wherein the pressure relief assembly (8) comprises a housing member (81) and a partition plate (82), wherein a cavity is formed in the housing member (81), the partition plate (82) is arranged in the housing member (81), the partition plate (82) separates the cavity to form the buffer cavity (803) and the liquid outlet cavity (804), the buffer cavity (803) is communicated with the liquid outlet cavity (804), and the liquid outlet cavity (804) is communicated with the third liquid outlet (802).