Electric heating coffee pot

Abstract

The utility model discloses an electric heating coffee pot which comprises an installation base and a pot body, the pot body is installed on the top of the installation base, a heating cavity protruding downwards is formed in the middle of the bottom of the pot body, a heater is wrapped on the outer side of the heating cavity, a heating heat preservation pipe is installed on the outer side of the bottom of the pot body, and the heating heat preservation pipe is connected with the installation base. The heater is arranged in a spiral shape, one end of the heater is connected with the positive electrode of a power source through a first kick temperature controller, the other end of the heater is connected with the negative electrode of the power source through a second kick temperature controller, and the other end of the heater is connected with the negative electrode of the power source through the heating heat preservation pipe. The heater is connected with a resistor R1 in parallel, and the heating thermal insulation pipe is connected with a resistor R2 in parallel. The coffee maker is simple in structure, the outer side of the heating cavity makes full contact with the heater, coffee on the inner side of the heating cavity is fully heated, the problem of water leakage caused by thermal expansion and cold contraction of the heating body is solved, the heating speed is high, the heating temperature is accurately controlled, and the using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of coffee maker technology, specifically to an electric coffee maker. Background Technology

[0002] As people's living standards improve, their pursuit of a higher quality of life also increases. Drinking coffee at home has become a common lifestyle experience, often using electric coffee makers. Currently, there are many types of electric coffee makers on the market, but existing models have slow heating speeds. Their heating structure consists of an aluminum heating element encased in an aluminum tube, installed at the bottom of the pot. This structure is prone to leaks due to frequent thermal expansion and contraction. Furthermore, the heating temperature control is not precise enough, resulting in unsatisfactory performance. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide an electric coffee maker with a simple structure and good heating effect.

[0004] This utility model is achieved through the following technical solution:

[0005] An electric coffee maker includes a mounting base and a pot body. The pot body is mounted on the top of the mounting base. A downwardly protruding heating cavity is provided in the middle of the bottom of the pot body. A heating element is wrapped around the outside of the heating cavity. A heating and heat preservation tube is installed on the outside of the bottom of the pot body.

[0006] Furthermore, the heating cavity is cylindrical, and the heater is spirally arranged, with the heater wrapped around the outside of the heating cavity.

[0007] Furthermore, one end of the heater is connected to the positive terminal of the power supply via a first snap-action thermostat, and the other end of the heater is connected to the negative terminal of the power supply via a second snap-action thermostat. The other end of the heater is also connected to the negative terminal of the power supply via the heating insulation tube. A resistor R1 is connected in parallel with the heater, and a resistor R2 is connected in parallel with the heating insulation tube.

[0008] Furthermore, the first snap-on temperature controller is mounted below the heating chamber via a metal connecting bracket.

[0009] Furthermore, the second snap-on temperature controller is installed at the bottom of the kettle body.

[0010] Furthermore, an indicator light electrically connected to the heater and the heating insulation tube is installed on the outside of the mounting base. The indicator light includes a red LED1 and a green LED2. The red LED1 is connected in series with the resistor R1 and then in parallel with the heater. The green LED2 is connected in series with the resistor R2 and then in parallel with the heating insulation tube.

[0011] Furthermore, a fuse F1 is connected to the end of the first snap-action thermostat.

[0012] Furthermore, a switch electrically connected to the heater and the heating insulation pipe is installed on the outside of the mounting base.

[0013] Furthermore, a connector electrically connected to the switch is installed at the bottom of the mounting base.

[0014] Furthermore, the heating and heat preservation tube is arranged in a circular shape and is attached to the bottom of the kettle body.

[0015] Compared to existing technologies, this invention features a downward-protruding heating chamber in the center of the bottom of the kettle body. A heating element is wrapped around the outside of the heating chamber, and a heating insulation tube is installed on the outside of the bottom of the kettle body. The outside of the heating chamber is in full contact with the heating element, ensuring that the coffee inside the heating chamber is fully heated. This avoids the problem of water leakage caused by thermal expansion and contraction of the heating element. It also features fast heating speed, precise heating temperature control, and good performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the electric coffee maker of this utility model;

[0018] Figure 2 This is an exploded view of the structure of the electric coffee maker of this utility model;

[0019] Figure 3 This is a circuit control schematic diagram of the electric coffee maker of this utility model.

[0020] In the diagram: 1-Mounting base; 2-Kettle body; 3-Heating chamber; 4-Heater; 5-Heating and heat preservation tube; 6-First snap-on thermostat; 7-Second snap-on thermostat; 8-Metal connecting bracket; 9-Indicator light; 10-Switch; 11-Connector. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 3 The electric coffee maker of this utility model includes a mounting base 1 and a pot body 2. The pot body 2 is mounted on the top of the mounting base 1. A downwardly protruding heating cavity 3 is provided in the middle of the bottom of the pot body 2. A heating element 4 is wrapped around the outside of the heating cavity 3. A heating and heat preservation tube 5 is installed on the outside of the bottom of the pot body 2. The outside of the heating cavity 3 is in full contact with the heating element 4, and the coffee inside the heating cavity 3 is fully heated, avoiding the problem of water leakage caused by thermal expansion and contraction of the heating element. The heating speed is fast, the heating temperature is precisely controlled, and the use effect is good.

[0023] The heating chamber 3 is cylindrical, and the heating element 4 is spiral. The heating element 4 is wrapped around the outside of the heating chamber 3, which simplifies the structure of the heating chamber 3 and the heating element 4. The heating element 4 is in full contact with the heating chamber 3, which improves the heating speed.

[0024] One end of the heater 4 is connected to the positive terminal of the power supply via the first snap-on thermostat 6, and the other end of the heater 4 is connected to the negative terminal of the power supply via the second snap-on thermostat 7. The other end of the heater 4 is also connected to the negative terminal of the power supply via the heating insulation tube 5. A resistor R1 is connected in parallel with the heater 4, and a resistor R2 is connected in parallel with the heating insulation tube 5. When the kettle body 2 overheats, the second snap-on thermostat 7 disconnects, and only the heating insulation tube 5 works. When the heating chamber 3 overheats, the first snap-on thermostat 6 disconnects, and the electric coffee maker stops heating.

[0025] The first snap-on thermostat 6 is mounted below the heating chamber 3 via a metal connecting bracket 8, which facilitates precise control of the coffee heating temperature. The metal connecting bracket 8 is provided with a mounting plate for mounting the first snap-on thermostat 6. The mounting plate is located on the side of the metal connecting bracket 8 to avoid the first snap-on thermostat 6 being affected by the heat radiation from the heater 4, thereby improving the temperature control accuracy.

[0026] The second snap-on thermostat 7 is installed at the bottom of the kettle body 2 to prevent the kettle body 2 from being dry-burned.

[0027] An indicator light 9 is installed on the outside of the mounting base 1, which is electrically connected to the heater 4 and the heating and heat preservation tube 5. The indicator light 9 includes a red LED1 and a green LED2. The red LED1 is connected in series with the resistor R1 and then in parallel with the heater 4. The green LED2 is connected in series with the resistor R2 and then in parallel with the heating and heat preservation tube 5. When the red LED1 is lit, it indicates that the electric coffee pot is in the heating working state. When the green LED2 is lit, it indicates that the electric coffee pot is in the heat preservation working state.

[0028] The first snap-on thermostat 6 is connected to a fuse F1 at its end. The fuse F1 provides overcurrent protection and improves the safety of the electric coffee maker.

[0029] A switch 10, which is electrically connected to the heater 4 and the heating and heat preservation tube 5, is installed on the outside of the mounting base 1 to facilitate the control of the electric coffee maker's power on and off.

[0030] The bottom of the mounting base 1 is equipped with a connector 11 that is electrically connected to the switch 10, so that the electric coffee maker can be automatically powered on when placed on the base. The base of the electric coffee maker is equipped with a contactor corresponding to the connector.

[0031] The heating and heat preservation tube 5 is arranged in a circular shape and is close to the bottom of the pot body 2, so that the bottom of the pot body 2 is fully heated and the heat preservation effect is improved.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrically heated coffee maker characterized in that: The kettle comprises a mounting base and a kettle body, the kettle body is mounted on the top of the mounting base, a heating cavity is arranged in the middle of the bottom of the kettle body and protrudes downward, a heating device is wrapped outside the heating cavity, and a heating and heat preservation tube is mounted outside the bottom of the kettle body.

2. The electrically heated coffee pot of claim 1 wherein: The heating cavity is in a cylindrical shape, and the heating device is in a spiral shape and wrapped outside the heating cavity.

3. The electrically heated coffee pot of claim 1 wherein: One end of the heating device is connected to the positive pole of a power supply through a first temperature jump controller, the other end of the heating device is connected to the negative pole of the power supply through a second temperature jump controller, the other end of the heating device is connected to the negative pole of the power supply through the heating and heat preservation tube, the heating device is connected in parallel with a resistor R1, and the heating and heat preservation tube is connected in parallel with a resistor R2.

4. The electrically heated coffee pot of claim 3 wherein: The first temperature jump controller is mounted below the heating cavity through a metal connecting support.

5. The electrically heated coffee pot of claim 3 wherein: The second temperature jump controller is mounted on the bottom of the kettle body.

6. The electrically heated coffee pot of claim 3 wherein: A display lamp is mounted outside the mounting base and electrically connected to the heating device and the heating and heat preservation tube, the display lamp comprises a red light LED1 and a green light LED2, the red light LED1 is connected in series with the resistor R1 and then connected in parallel with the heating device, and the green light LED2 is connected in series with the resistor R2 and then connected in parallel with the heating and heat preservation tube.

7. The electrically heated coffee pot of claim 3 wherein: An insurance fuse F1 is connected to the end of the first temperature jump controller.

8. The electrically heated coffee pot of claim 1 wherein: A switch is mounted outside the mounting base and electrically connected to the heating device and the heating and heat preservation tube.

9. The electrically heated coffee pot of claim 8 wherein: A connector is mounted at the bottom of the mounting base and electrically connected to the switch.

10. The electrically heated coffee pot of claim 1 wherein: The heating and heat preservation tube is in a circular ring shape and closely attached to the bottom of the kettle body.

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