Heating part

Abstract

The present invention relates to a heating part, which aims to solve the problem of low heating efficiency of the heating part of a coffee machine in the prior art. The heating part comprises a water inlet, a water outlet and a heating element arranged between the water inlet and the water outlet. The heating element comprises a heating film and a heating film bottom cover, and the heating film can generate heat when powered on so as to heat the liquid flowing through the heating element. The heating part of the present invention adopts a film heating technology, which has high heating efficiency and is easy to achieve precise temperature control.

Description

Technical Field

[0001] The present invention relates to the field of electrical products for brewing beverages such as coffee, and in particular to a heating part for heating liquid flowing therethrough. Background Art

[0002] As people's living standards improve, coffee drinks begin to be loved by people and become a daily drink for people, especially those who pursue quality of life. At present, the main methods of making coffee drinks are: brewing with instant coffee, brewing with existing coffee powder in a coffee machine, and grinding coffee beans on site with a coffee machine and further brewing.

[0003] The above-mentioned coffee machine usually has a heating device to heat water flowing through the heating device, and the heated hot water is poured onto the coffee powder to brew a coffee beverage.

[0004] The coffee machine in the prior art usually uses a tubular heating part to heat the liquid flowing through. This tubular heating part is generally a common electric heating tube (usually a resistance heating coil). Since the contact area between the heating tube and the water channel is small and it is difficult for them to fit tightly, the heating efficiency is low. In addition, the part of the heating tube that is not in contact with the water channel is easy to dissipate heat, resulting in a large heat loss. In addition, since the heating and heat dissipation of the heating tube itself takes a certain amount of time, it is not easy to accurately control the temperature of the hot water provided.

[0005] Therefore, it is necessary to provide a heat generating portion that can at least partially overcome the above disadvantages. Summary of the invention

[0006] An object of the present invention is to provide a heating unit that can at least solve some of the deficiencies of the heating unit in the prior art.

[0007] The technical solution 1 adopted by the present invention to solve the technical problem is to provide a heating part, which includes a water inlet, a water outlet and a heating body arranged between the water inlet and the water outlet, wherein the heating body has a heating film, a heating film bottom cover and a heating film protective cover, the heating film is placed in the heating film protective cover and can generate heat when power is turned on so as to heat the water flowing through the heating body.

[0008] Technical Solution 2: The heating part according to Technical Solution 1, wherein the heating film is sheet-shaped and has a U-shaped outer contour.

[0009] Technical Solution 3: The heating part according to Technical Solution 1, wherein the shape of the heating film protective cover roughly corresponds to the shape of the heating film.

[0010] Technical Solution 4: According to the heating part of Technical Solution 1, the overall shape of the heating element is U-shaped, so that the water inlet and the water outlet are located at the same height.

[0011] Technical Solution 5: The heat generating part according to any one of Technical Solutions 1 to 4, wherein an exhaust duct is provided on the upper part of the heat generating film bottom cover.

[0012] Technical Solution 6: According to the heating part of Technical Solution 5, the exhaust duct is arranged between the water inlet and the water outlet.

[0013] Technical Solution 7: The heating part according to any one of Technical Solutions 1 to 4, wherein a recess is provided at the bottom of the heating film bottom cover.

[0014] Technical Solution 8: The heat generating portion according to Technical Solution 7, wherein the recess extends over most of the bottom width of the heat generating film bottom cover.

[0015] Technical Solution 9: The heating part according to any one of Technical Solutions 1-4, wherein the outer contours of the heating film bottom cover and the heating film protective cover are substantially consistent with each other, and the heating film bottom cover and the heating film protective cover are connected via a heating film fixing member.

[0016] Technical Solution 10: According to the heating part of Technical Solution 9, the heating film bottom cover, the heating film and the heating film protective cover are connected to each other by bolts to fix the heating film in the heating film protective cover.

[0017] Compared with the prior art, the heating part of the present invention mainly has the following beneficial effects. First, the heating part of the present invention adopts membrane heating technology, in which the contact area between the heating film and the water channel is large, so the heat generated by the heating film when it is powered on can be transferred to the heating pipe faster, more evenly and more fully, which makes the heating efficiency higher. Second, since the heating film can quickly generate high temperature when powered on and can quickly dissipate heat when powered off, it is easy to accurately control the temperature of the hot water provided. Third, since an exhaust duct is provided on the upper part of the bottom cover of the heating film, the air at the water inlet will be discharged to the water outlet when water is inlet, thereby preventing the air from being blocked at the water inlet when water is inlet, so that the water cannot flow out of the water cup well and cause the heating film to dry burn. Fourth, the recessed portion provided at the bottom of the bottom cover of the heating film can prevent excessive water storage in the bottom cover of the heating film, so that the temperature of the hot water provided can be more accurately controlled.

[0018] In the following description of the drawings and specific embodiments, the details of one or more embodiments of the present invention will be described. Other features, objects and advantages of the present invention can be clearly seen from these descriptions, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in more detail by way of example with reference to the accompanying drawings, which are not drawn to scale, in which:

[0020] Figure 1 is a schematic 3D assembly diagram of a coffee machine according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 The coffee machine shown is a three-dimensional schematic diagram of assembly from another angle;

[0022] Figure 3 yes Figure 1 A schematic cross-sectional view of a coffee machine is shown;

[0023] Figure 4 yes Figure 1 An exploded perspective schematic diagram of the main parts of the coffee machine shown;

[0024] Figure 5 is a side view of a heating unit of a coffee machine according to an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A three-dimensional schematic diagram of the heating part in FIG. DETAILED DESCRIPTION

[0026] The present invention will be described in more detail below in conjunction with specific embodiments. It should be understood by those skilled in the art that these descriptions merely list some specific embodiments of the present invention and do not limit the present invention and its protection scope in any way.

[0027] Additionally, to facilitate description of the relationship of one component or part to another component or part shown in the drawings, spatially relative terms, such as "lower," "upper," and the like, may be used herein. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned upside down, components described as being "lower" than other components or parts may then be oriented "above" the other components or parts.

[0028] Figure 1 The coffee machine according to one embodiment of the present invention is shown in a three-dimensional assembly diagram. The coffee machine mainly includes a body 1, a water cup 112, a heating part, a coffee powder box 107, a base 3 and a glass cup 2.

[0029] Figure 2 yes Figure 1 The coffee machine shown is a three-dimensional schematic diagram of assembly from another angle. Figure 2As can be seen in the figure, the water inlet of the U-shaped heating film bottom cover 131 can be connected to the water cup 112 by means of a water inlet silicone tube. The water outlet of the heating film bottom cover can deliver hot water to the funnel by means of a heating film water outlet silicone tube 128, a water pipe 125, and a water outlet silicone tube 124.

[0030] Reference Figure 3 and Figure 4 The machine body 1 may include a top cover 101, a machine body upper bracket 105, and a machine body. The top cover 101 may include a top cover decorative sheet 102. The machine body upper bracket 105 may include a machine body upper bracket left cover 104 and a machine body upper bracket right cover 113. The coffee powder box 107 is connected to the machine body 1 and the base 3 by means of the top cover 101 and the machine body upper bracket 105. The various components of the machine body are combined to form various accommodation spaces and installation positions to accommodate or install various necessary components of the coffee machine. Of course, the machine body 1 may also adopt other forms such as a two-piece type, as long as the above-mentioned accommodation or installation purposes can be achieved.

[0031] The base 3 is arranged at the bottom of the body 1, and a bottom heating plate fixing block 140 may be arranged in the base 3. A PCT heater 141 may be arranged at the bottom heating plate fixing block 140. The heater is mainly used to heat and keep the coffee beverage in the glass 2. A light PCB board 301, a button 302 and a silicone button 303 may also be arranged on the outside of the base 3.

[0032] The water cup 112 may include a water cup body, a water cup cover 111 and a sealing portion, etc. The water cup 112 can be placed on the fuselage 1 and is used to provide water to be heated. Among them, when the water cup 112 is lifted from the fuselage 1, the sealing portion is used to seal the bottom of the water cup 112 to prevent water leakage; and when the water cup 112 is placed on the fuselage 1, the sealing portion is opened to supply water to the heating portion. A magnet box 118 is fixed to the fuselage 1 via a magnet box fixing frame 116, and the magnet box 118 is contained in a magnet box cover 117. A Hall element 115 may be provided at the magnet box fixing frame 116. A small magnet 11 is installed in the magnet box 118 to control the opening or closing of the sealing portion through magnetic action.

[0033] The coffee powder box 107 is mounted on the machine body 1, and a funnel 106, a water outlet box 108, and a drain valve 109 may be provided in the coffee powder box 107. The funnel 106 is used to contain coffee powder and to receive hot water heated by the heating part so that the coffee powder is brewed by the received hot water.

[0034] The glass 2 can be placed on the base 3 and used to collect brewed coffee. The glass 2 can be a glass container, a ceramic container or a metal container. The glass 2 can include a glass cover 201, a glass fixing member 202, a glass handle 203 and a glass handle cover 204. The glass 2 can be fixed in the base 3 via a cup bottom support plate 139.

[0035] The heating part is installed in the body 1 and is used to heat the water provided by the water cup 112. The heating part includes a water inlet, a water outlet and a heating element arranged between the water inlet and the water outlet. The heating element has a heating film, a heating film bottom cover and a heating film protective cover. The heating film is placed in the heating film protective cover and can generate heat when powered on so as to heat the water flowing through the heating element. In a preferred embodiment, the overall shape of the heating part of the coffee machine of the present invention can be U-shaped, so that the water inlet and the water outlet are located at the same height.

[0036] Reference Figure 5 and Figure 6 According to a preferred embodiment, the heating element may have a U-shaped heating film 132, a U-shaped heating film bottom cover 131 and a U-shaped heating film protective cover 136. The shape of the heating film protective cover roughly corresponds to the shape of the heating film. The U-shaped heating film 132 is placed in the U-shaped heating film protective cover 136 and can generate heat when powered on so as to heat the water flowing through the heating element. The U-shaped heating film bottom cover 131 and the U-shaped heating film protective cover 136 are connected by a heating film fixing member 130. According to a preferred embodiment, an exhaust duct may be provided on the upper part of the U-shaped heating film bottom cover 131. The exhaust duct is provided between the water inlet and the water outlet. When water is inletted, the exhaust duct will discharge the air at the water inlet to the water outlet, thereby preventing the air from being blocked at the water inlet when water is inlet, so that the water cannot flow out of the water cup well and cause the heating film to dry out. According to another preferred embodiment, a recess may be provided at the bottom of the U-shaped heating film bottom cover 131, which can prevent excessive water storage in the heating film bottom cover. Preferably, the recess extends over most of the width of the bottom of the heat generating film bottom cover.

[0037] The coffee machine of the present invention may further include other necessary components for realizing its functions, which are well known to those skilled in the art and will not be described in detail herein.

[0038] The above description is only used to exemplify the present invention and is not used to limit the present invention. It should be pointed out that for ordinary technicians in this field, several improvements, modifications and variations can be made to the present invention, but these improvements, modifications and variations should be regarded as falling within the scope of protection of the present invention without departing from the spirit of the present invention.

Claims

1. A heating part, comprising a water inlet, a water outlet and a heating element arranged between the water inlet and the water outlet, characterized in that: The heating element comprises a heating film, a heating film bottom cover and a heating film protective cover, wherein the heating film is placed in the heating film protective cover and can generate heat when powered on so as to heat water flowing through the heating element, wherein an exhaust duct is arranged on the upper part of the heating film bottom cover, wherein the heating film is sheet-shaped and has a U-shaped outer contour, wherein the overall shape of the heating element is U-shaped, so that the water inlet and the water outlet are located at the same height, and wherein the exhaust duct is arranged between the water inlet and the water outlet.

2. The heating element according to claim 1, characterized in that: The shape of the heating film protective cover roughly corresponds to the shape of the heating film.

3. The heating element according to claim 1, characterized in that: A recess is arranged at the bottom of the heating film bottom cover.

4. The heating element according to claim 3, characterized in that: The recess extends over most of the width of the bottom of the heat generating film bottom cover.

5. The heating part according to any one of claims 1 to 4, characterized in that: The outer contours of the heating film bottom cover and the heating film protective cover are substantially consistent with each other, and the heating film bottom cover and the heating film protective cover are connected via a heating film fixing member.

6. The heating element according to claim 5, characterized in that: The heating film bottom cover, the heating film and the heating film protective cover are connected to each other by bolts to fix the heating film in the heating film protective cover.

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