Heating sheet, heating assembly and coffee machine

Abstract

The utility model provides a heating sheet, a heating assembly and a coffee maker, the heating sheet comprises a first arc section, a second arc section, a third arc section, a fourth arc section, a fifth arc section and a sixth arc section, and the third arc section, the fourth arc section, the fifth arc section and the sixth arc section are respectively provided with openings at water outlet positions. The two ends of an opening of the third arc section are connected with the two ends of an opening of the sixth arc section through fourth connecting sections correspondingly, a seventh arc section is arranged at the outer end, away from the first arc section, of one fourth connecting section in a protruding mode, and the free end of the seventh arc section extends towards the other fourth connecting section in an arc mode. And the inner peripheral wall of the seventh arc section and the inner peripheral walls of the two fourth connecting sections extend on the same circumference around the water outlet position. The heating temperature of the heating piece is uniform, the problem of local heating burst boiling is avoided, and therefore the taste of outlet water is improved, the taste of brewed coffee is improved, and user experience is better.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology for coffee brewing, and in particular to a heating element, a heating assembly having the heating element, and a coffee machine having the heating assembly. Background Technology

[0002] Coffee is a beverage made by brewing coffee powder from roasted coffee beans. Along with cocoa and tea, it is one of the world's three major beverages. Coffee beans refer to the kernels inside the fruit of the coffee tree, which are then roasted using appropriate methods. In terms of taste, coffee can exhibit varying degrees of sweetness, acidity, body, or cleanliness.

[0003] To brew fresh and delicious coffee, existing coffee machines are equipped with a hot water supply device and a coffee extraction device. The hot water supply device includes a pump body and a heating element, which includes a heating cup and a heating plate. The heating plate is located on the bottom outer surface of the heating cup to heat the water inside the cup. Under the pressure of the pump body, the hot water in the heating cup flows out from the outlet of the heating cup. The high-pressure hot water flowing out from the outlet of the heating cup supplies the coffee extraction device to brew and extract the coffee powder, thereby providing users with fresh and delicious coffee.

[0004] Chinese patent CN218587345U discloses a conventional disc-shaped heater assembly. To ensure stable water temperature, a curved end of the thick-film heating circuit extends to the water outlet. However, the curved end of the thick-film heating circuit in this conventional disc-shaped heater assembly connects with a certain point on the circumference of the water outlet to form a heating position. This results in the water temperature at the heating position of the water outlet being significantly higher than the water temperature at other points on the circumference of the water outlet that are far from the heating position. This causes localized high and low temperature phenomena on the circumference of the water outlet, resulting in uneven heating temperature and localized boiling problems. Consequently, this affects the taste of the water and, consequently, the taste of brewed coffee. Summary of the Invention

[0005] To achieve the primary objective of this invention, a heating element with uniform heating temperature is provided to avoid localized boiling problems, thereby improving the taste of the water and the brewed coffee, resulting in a better user experience.

[0006] To achieve the second objective of this utility model, this utility model provides a heating assembly having the above-mentioned heating element.

[0007] To achieve the third objective of this invention, this invention provides a coffee machine having the aforementioned heating components.

[0008] To achieve the primary objective of this invention, a heating element is provided, comprising a first arc segment, a second arc segment, a third arc segment, a fourth arc segment, a fifth arc segment, and a sixth arc segment. The second, third, fourth, fifth, and sixth arc segments are all coaxially arranged with the first arc segment and are radially outwards from the first arc segment with equal spacing. The two ends of the first arc segment are connected to the two ends of the fourth arc segment via first connecting segments. The two ends of the second arc segment are connected to the two ends of the third arc segment via second connecting segments. The two second connecting segments are located circumferentially outside the two first connecting segments, and the circumferential spacing between the two first connecting segments and the circumferential spacing between the second connecting segment and the first connecting segment are both equal to the first spacing. The two ends of the fifth arc segment are connected to the two ends of the sixth arc segment via third connecting segments. The second circumferential distance between the two third connecting segments is greater than the first distance, and power connection terminals are respectively provided on the two third connecting segments. The third, fourth, fifth, and sixth arc segments have openings at the water outlet positions. The two ends of the openings of the third arc segments are respectively connected to the two ends of the openings of the sixth arc segments through the fourth connecting segments. The two ends of the openings of the fourth arc segments are respectively connected to the two ends of the openings of the fifth arc segments through the fifth connecting segments. The two fifth connecting segments are located outside the two fourth connecting segments in the circumferential direction. The circumferential distance between the fourth and fifth connecting segments is the first distance. A seventh arc segment is provided protruding from the outer end of one fourth connecting segment away from the first arc segment. The free end of the seventh arc segment extends arc-shaped toward the other fourth connecting segment. The inner circumferential wall of the seventh arc segment and the inner circumferential walls of the two fourth connecting segments extend around the water outlet position on a circumference.

[0009] As can be seen from the above scheme, the two power connection terminals of the heating element of this utility model are respectively connected to an external power source through wires to supply power to the heating element to heat the water in the heating cup. Since the third, fourth, fifth, and sixth arc segments of the heating element of this utility model have openings at the water outlet, the two ends of the opening of the third arc segment are connected to the two ends of the opening of the sixth arc segment through fourth connecting segments, and the two ends of the opening of the fourth arc segment are connected to the two ends of the opening of the fifth arc segment through fifth connecting segments. The two fifth connecting segments are located circumferentially outside the two fourth connecting segments, and the circumferential distance between the fourth and fifth connecting segments is the first distance. A seventh arc segment protrudes from the outer end of one fourth connecting segment away from the first arc segment, and the free end of the seventh arc segment extends arc-shaped toward the other fourth connecting segment. The inner circumferential wall of the seventh arc segment and the inner circumferential walls of the two fourth connecting segments extend around the water outlet in a circle, ensuring uniform heating in the circumferential direction of the water outlet (water outlet position) and avoiding localized high temperatures in the circumferential direction of the water outlet. The heating element exhibits low-temperature characteristics. Furthermore, the second, third, fourth, fifth, and sixth arc segments of this invention are all coaxially arranged with the first arc segment and radially outwards with equal first-order spacing, centered on the first arc segment. The two ends of the first arc segment are connected to the two ends of the fourth arc segment via first connecting segments, and the two ends of the second arc segment are connected to the two ends of the third arc segment via second connecting segments. The two second connecting segments are located circumferentially outside the two first connecting segments, and the circumferential spacing between the two first connecting segments and the circumferential spacing between the second connecting segment and the first connecting segment are both the first spacing. The two ends of the fifth arc segment are connected to the two ends of the sixth arc segment via third connecting segments, and the circumferential spacing between the two third connecting segments is greater than the first spacing. This ensures uniform heating temperature across the entire heating element, preventing localized boiling or bursting.

[0010] Therefore, the heating element of this utility model has a uniform heating temperature, avoiding the problem of localized heating and boiling, thereby improving the taste of the water and the taste of brewed coffee, resulting in a better user experience.

[0011] A preferred embodiment is that the second connecting segment has a first arc hole on its inner circumferential wall away from the first connecting segment. The axis of the first arc hole is located on the middle arc line between the second and third arc segments and is set close to the first connecting segment in the circumferential direction. The diameter of the first arc hole is greater than the first spacing.

[0012] A further proposed solution is to provide a second arc-shaped hole on the inner circumferential wall of the fifth connecting segment away from the fourth connecting segment. The axis of the second arc-shaped hole is located on the middle arc line between the fourth and fifth arc segments and is positioned close to the fourth connecting segment in the circumferential direction. The diameter of the second arc-shaped hole is greater than the first spacing.

[0013] A further proposed solution is that the first, second, third, fourth, fifth, and sixth arc segments all have a first width in the radial direction; the seventh arc segment has a second width in the radial direction that is less than the first width; and / or, the first connecting segment and the fourth connecting segment both have a first width in the circumferential direction.

[0014] A further proposed solution is that the first gap formed between the two first connecting segments and the second gap formed between the two third connecting segments are radially opposite to each other.

[0015] A further proposed solution is to have a first notch on the outer peripheral wall of the sixth arc segment away from the first arc segment, with the first notch located circumferentially between the third and fourth connecting segments.

[0016] A further proposed solution is to have a second notch on the outer peripheral wall of the fifth arc segment away from the first arc segment, with the second notch corresponding to the first notch in the radial direction.

[0017] To achieve the second objective of this utility model, a heating assembly is provided, including a heating cup and a heating element. The heating element is disposed on the bottom outer end face of the heating cup. The heating element is the aforementioned heating element. The heating element and the heating cup are coaxially arranged. The water outlet of the heating cup is located at the water outlet position of the heating element. A first temperature sensor is disposed on the bottom outer end face of the heating cup. The first temperature sensor is located in the shaft hole of the first arc segment of the heating element. A second temperature sensor is disposed on the peripheral wall of the heating cup. The second temperature sensor is disposed near the bottom of the heating cup and is disposed in the radial direction of the heating cup corresponding to the first notch of the heating element.

[0018] A further embodiment includes a heat-conducting adhesive layer and an insulating film. The insulating film is attached to the outer end face of the heating element, and the insulating film has a first through hole and two second through holes. The first through hole corresponds to the water outlet. One power connection terminal of the heating element passes through one of the second through holes. The heat-conducting adhesive layer bonds the inner end face of the heating element and the insulating film to the bottom outer end face of the heating cup.

[0019] To achieve the third objective of this utility model, this utility model provides a coffee machine, including a heating component, which is the heating component described above. Attached Figure Description

[0020] Figure 1 This is a first-view structural diagram of an embodiment of the heating component of this utility model.

[0021] Figure 2 This is a second-view structural diagram of an embodiment of the heating component of this utility model.

[0022] Figure 3 This is a cross-sectional view of an embodiment of the heating component of this utility model.

[0023] Figure 4 This is an exploded view of an embodiment of the heating component of this utility model.

[0024] Figure 5 This is a partial bottom view of an embodiment of the heating component of this utility model.

[0025] Figure 6 This is a front view of the heating element in an embodiment of the heating assembly of this utility model.

[0026] Figure 7 This is a structural diagram of the heating element in an embodiment of the heating component of this utility model.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0028] See Figures 1 to 7 This embodiment discloses a heating assembly 10, including a heating cup 11 and a heating element 15, wherein the heating element 15 is disposed on the bottom outer end face of the heating cup 11.

[0029] In this embodiment, the heating element 15 includes a first arc segment 151, a second arc segment 152, a third arc segment 153, a fourth arc segment 154, a fifth arc segment 155, and a sixth arc segment 156. The second arc segment 152, the third arc segment 153, the fourth arc segment 154, the fifth arc segment 155, and the sixth arc segment 156 are all coaxially arranged with the first arc segment 151 and are arranged radially outward with equal first spacing H1 centered on the first arc segment 151.

[0030] Furthermore, in this embodiment, the two ends of the first arc segment 151 are connected to the two ends of the fourth arc segment 154 through the first connecting segment 158, and the two ends of the second arc segment 152 are connected to the two ends of the third arc segment 153 through the second connecting segment 159. The two second connecting segments 159 are located outside the two first connecting segments 158 in the circumferential direction, and the circumferential distance between the two first connecting segments 158 and the circumferential distance between the second connecting segment 159 and the first connecting segment 158 ​​are both the first distance H1. The two ends of the fifth arc segment 155 are connected to the two ends of the sixth arc segment 156 through the third connecting segment 1510, and the circumferential second distance H2 between the two third connecting segments 1510 is greater than the first distance H1. Power connection terminals 1511 are respectively provided on the two third connecting segments 1510.

[0031] In addition, in this embodiment, the third arc segment 153, the fourth arc segment 154, the fifth arc segment 155, and the sixth arc segment 156 each have an opening at the water outlet position 150. The two ends of the opening of the third arc segment 153 are connected to the two ends of the opening of the sixth arc segment 156 through the fourth connecting segment 1512, and the two ends of the opening of the fourth arc segment 154 are connected to the two ends of the opening of the fifth arc segment 155 through the fifth connecting segment 1513. The two fifth connecting segments 1513 are respectively located in the circumferential direction. The outer sides of the two fourth connecting segments 1512, the circumferential distance between the fourth connecting segment 1512 and the fifth connecting segment 1513 is the first distance H1, and a seventh arc segment 157 is provided on the outer end of one fourth connecting segment 1512 away from the first arc segment 151. The free end of the seventh arc segment 157 extends arc-shaped toward the other fourth connecting segment 1512, and the inner circumferential wall of the seventh arc segment 157 and the inner circumferential walls of the two fourth connecting segments 1512 extend around the water outlet position 150 on a circumference.

[0032] Specifically, in this embodiment, the heating element 15 and the heating cup 11 are coaxially arranged, and the water outlet 111 of the heating cup 11 is located at the water outlet position 150 of the heating element 15. Thus, the inner peripheral wall of the seventh arc segment 157 of the heating element 15 and the inner peripheral wall of the two fourth connecting segments 1512 extend around the water outlet 111 in a circle.

[0033] In this embodiment, the two power connection terminals 1511 of the heating element 15 are respectively connected to an external power source via wires to supply power to the heating element 15 for heating the water in the heating cup 11. Since the third arc segment 153, the fourth arc segment 154, the fifth arc segment 155, and the sixth arc segment 156 of the heating element 15 in this embodiment have openings at the water outlet position 150, the two ends of the opening of the third arc segment 153 are respectively connected to the two ends of the opening of the sixth arc segment 156 via fourth connecting segments 1512, and the two ends of the opening of the fourth arc segment 154 are respectively connected to the two ends of the opening of the fifth arc segment 155 via fifth connecting segments 1513. The two fifth connecting segments 1513 are located circumferentially outside the two fourth connecting segments 1512. The circumferential distance between connecting segment 1512 and the fifth connecting segment 1513 is the first distance H1. A seventh arc segment 157 protrudes from the outer end of one fourth connecting segment 151 away from the first arc segment 151. The free end of the seventh arc segment 157 extends arc-shaped toward the other fourth connecting segment 1512. The inner circumferential wall of the seventh arc segment 157 and the inner circumferential walls of the two fourth connecting segments 1512 extend around the water outlet position 150 in a circle, ensuring uniform circumferential heating of the water outlet 111 (water outlet position 150) and preventing uneven heating in the circumferential direction of the water outlet 111. The heating element exhibits localized high and low temperature phenomena. Furthermore, in this embodiment, the second arc segment 152, the third arc segment 153, the fourth arc segment 154, the fifth arc segment 155, and the sixth arc segment 156 of the heating element 15 are all coaxially arranged with the first arc segment 151 and are arranged radially outwards with equal first spacing H1, centered on the first arc segment 151. The two ends of the first arc segment 151 are connected to the two ends of the fourth arc segment 154 via a first connecting segment 158, and the two ends of the second arc segment 152 are connected to the two ends of the third arc segment 153 via a second connecting segment 159. The two second connecting segments 159 are located outside the two first connecting segments 158 in the circumferential direction, and the circumferential distance between the two first connecting segments 158 and the circumferential distance between the second connecting segment 159 and the first connecting segment 158 ​​is the first distance H1. The two ends of the fifth arc segment 155 are connected to the two ends of the sixth arc segment 156 through the third connecting segment 1510, and the circumferential second distance H2 of the two third connecting segments 1510 is greater than the first distance H1, so that the heating element 15 in this embodiment has a uniform heating temperature and avoids the problem of local heating and boiling.

[0034] Therefore, the heating element 15 in this embodiment has a uniform heating temperature, avoiding the problem of localized heating and boiling, thereby improving the feel of the water outlet 111, and thus improving the taste of brewed coffee, resulting in a better user experience.

[0035] To further improve the uniformity of heating temperature of heating element 15, in this embodiment, the radial width of the first arc segment 151, the second arc segment 152, the third arc segment 153, the fourth arc segment 154, the fifth arc segment 155 and the sixth arc segment 156 is the first width B1. In this embodiment, the radial width of the seventh arc segment 157 is the second width B2, which is smaller than the first width B1. In this embodiment, the circumferential width of the first connecting segment 158 ​​and the fourth connecting segment 1512 is the first width B1, thereby avoiding local overheating.

[0036] To further improve the uniformity of heating temperature of heating element 15, in this embodiment, a first arc hole 1591 is provided on the inner peripheral wall of the second connecting segment 159 away from the first connecting segment 158. The axis of the first arc hole 1591 is located on the middle arc line between the second arc segment 152 and the third arc segment 153 and is set close to the first connecting segment 158 ​​in the circumferential direction. The diameter of the first arc hole 1591 is larger than the first spacing H1. The setting of the first arc hole 1591 avoids the phenomenon of local overheating caused by the excessively large connection size of the second connecting segment 159. Furthermore, in this embodiment, the inner peripheral wall of the fifth connecting segment 1513 away from the fourth connecting segment 1512 is provided with a second arc hole 15131. The axis of the second arc hole 15131 is located on the middle arc line between the fourth arc segment 154 and the fifth arc segment 155 and is set close to the fourth connecting segment 1512 in the circumferential direction. The diameter of the second arc hole 15131 is larger than the first spacing H1. The setting of the second arc hole 15131 avoids the phenomenon of local overheating caused by the excessively large connection size of the fifth connecting segment 1513, and further improves the heating temperature uniformity of the heating element 15.

[0037] Furthermore, in this embodiment, the first gap H1 formed between the two first connecting segments 158 and the second gap H2 formed between the two third connecting segments 1510 are radially opposite to each other. Since the second gap H2 is greater than the first gap H1, the heating temperature uniformity of the heating element 15 is further improved.

[0038] In order to accurately detect the water temperature inside the heating cup 11, a first temperature sensor is provided on the bottom outer end face of the heating cup 11 in this embodiment. The first temperature sensor is located in the shaft hole of the first arc segment 151 of the heating element 15. In addition, a second temperature sensor 12 is provided on the peripheral wall of the heating cup 11 in this embodiment, and the second temperature sensor 12 is located near the bottom of the heating cup 11.

[0039] To improve the temperature detection accuracy of the second temperature sensor 12, in this embodiment, a first notch 1514 is provided on the outer peripheral wall of the sixth arc segment 156 of the heating element 15 away from the first arc segment 151. The first notch 1514 is located in the circumferential direction between the third connecting segment 1510 and the fourth connecting segment 1512, and the second temperature sensor 12 is arranged in the radial direction of the heating cup 11 corresponding to the first notch 1514 of the heating element 15. This increases the distance between the second temperature sensor 12 and the heating element 15 in the radial direction of the heating cup 11, avoids false alarms by the second temperature sensor 12, and thus ensures the temperature detection accuracy of the second temperature sensor 12.

[0040] In order to further improve the temperature detection accuracy of the second temperature sensor 12, in this embodiment, the fifth arc segment 155 of the heating element 15 is provided with a second notch 1515 on the outer peripheral wall away from the first arc segment 151. The second notch 1515 is radially corresponding to the first notch 1514.

[0041] To securely mount the heating element 15 to the bottom outer end face of the heating cup 11, the heating assembly 10 in this embodiment further includes a thermally conductive adhesive layer 14 and an insulating film 13. The insulating film 13 is coated on the outer end face of the heating element 15, and the insulating film 13 has a first through hole 131 and two second through holes 132. The first through hole 131 is corresponding to the water outlet 111. A power connection terminal 1511 of the heating element 15 passes through one of the second through holes 132. The thermally conductive adhesive layer 14 bonds the inner end face of the heating element 15 and the insulating film 13 to the bottom outer end face of the heating cup 11. Specifically, in this embodiment, the insulating film 13 is a polyimide film (PI film).

[0042] The traditional method of installing heating elements involves fixing the heating element 15 between two insulating films, and then fixing one insulating film to the bottom outer surface of the heating cup 11 with double-sided tape. This traditional method of installing heating elements will produce many air bubbles during the pasting process. When the insulating film is working under relatively high heating power, the heat conduction speed caused by the air bubbles is uneven, resulting in excessive local heating, which leads to the burning and failure of the insulating film.

[0043] Compared to the traditional heating element installation method, in this embodiment, the outer end face of the heating element 15 is fixed on the insulating film 13. Then, a thermally conductive adhesive layer 14 is coated on the inner end face of the heating element 15, and the thermally conductive adhesive layer 14 is coated on the inner end face of the insulating film 13 that is exposed relative to the heating element 15. Subsequently, the bottom outer end face of the heating cup 11 is placed on the thermally conductive adhesive layer 14, and then cured at a certain temperature in an oven. Thus, the heating element 15 and the insulating film 13 are stably and firmly fixed on the bottom outer end face of the heating cup 11 by the adhesion of the thermally conductive adhesive layer 14, so that the heating element 15 and the insulating film 13 are flatly set on the bottom outer end face of the heating cup 11, which is less likely to generate air bubbles, thereby avoiding local overheating and improving heating uniformity.

[0044] The above embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A heating element, comprising a first arc segment, a second arc segment, a third arc segment, a fourth arc segment, a fifth arc segment, and a sixth arc segment, wherein the second, third, fourth, fifth, and sixth arc segments are all coaxially arranged with the first arc segment and are arranged radially outward with equal spacing from the first arc segment as the center, characterized in that: The two ends of the first arc segment are respectively connected to the two ends of the fourth arc segment through a first connecting segment. The two ends of the second arc segment are respectively connected to the two ends of the third arc segment through a second connecting segment. The two second connecting segments are respectively located outside the two first connecting segments in the circumferential direction. The circumferential distance between the two first connecting segments and the circumferential distance between the second connecting segment and the first connecting segment are both the first distance. The two ends of the fifth arc segment are respectively connected to the two ends of the sixth arc segment through a third connecting segment. The circumferential second distance between the two third connecting segments is greater than the first distance. Power connection terminals are respectively provided on the two third connecting segments. The third, fourth, fifth, and sixth arc segments each have an opening at the water outlet. The two ends of the opening of the third arc segment are connected to the two ends of the opening of the sixth arc segment via a fourth connecting segment. The two ends of the opening of the fourth arc segment are connected to the two ends of the opening of the fifth arc segment via a fifth connecting segment. The two fifth connecting segments are located circumferentially outside the two fourth connecting segments. The circumferential distance between the fourth connecting segments and the fifth connecting segments is the first distance. A seventh arc segment protrudes from the outer end of one of the fourth connecting segments away from the first arc segment. The free end of the seventh arc segment extends arc-shaped toward the other fourth connecting segment. The inner circumferential wall of the seventh arc segment and the inner circumferential walls of the two fourth connecting segments extend around the water outlet in a circle.

2. The heating element according to claim 1, characterized in that: The second connecting segment has a first arc hole on its inner circumferential wall away from the first connecting segment. The axis of the first arc hole is located on the middle arc line between the second arc segment and the third arc segment and is set close to the first connecting segment in the circumferential direction. The diameter of the first arc hole is greater than the first spacing.

3. The heating element according to claim 1, characterized in that: The fifth connecting segment has a second arc hole on its inner circumferential wall away from the fourth connecting segment. The axis of the second arc hole is located on the middle arc line between the fourth arc segment and the fifth arc segment and is set close to the fourth connecting segment in the circumferential direction. The diameter of the second arc hole is greater than the first spacing.

4. The heating element according to claim 1, characterized in that: The first arc segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, and the sixth arc segment all have a first width in the radial direction; The second width of the seventh arc segment in the radial direction is less than the first width, and / or the widths of the first connecting segment and the fourth connecting segment in the circumferential direction are both the first width.

5. The heating element according to claim 1, characterized in that: The first spacing formed between the two first connecting segments and the second spacing formed between the two third connecting segments are radially opposite to each other.

6. The heating element according to any one of claims 1 to 5, characterized in that: The sixth arc segment has a first notch on its outer peripheral wall away from the first arc segment, and the first notch is located circumferentially between the third connecting segment and the fourth connecting segment.

7. The heating element according to claim 6, characterized in that: The fifth arc segment has a second notch on its outer peripheral wall away from the first arc segment, and the second notch is radially aligned with the first notch.

8. A heating assembly, comprising a heating cup and a heating element, wherein the heating element is disposed on the bottom outer end face of the heating cup, characterized in that: The heating element is the heating element described in claim 6 or 7 above, the heating element and the heating cup are coaxially arranged, and the water outlet of the heating cup is located at the water outlet position of the heating element; A first temperature sensor is provided on the bottom outer end face of the heating cup. The first temperature sensor is located in the shaft hole of the first arc segment of the heating element. A second temperature sensor is provided on the peripheral wall of the heating cup. The second temperature sensor is located near the bottom of the heating cup and is arranged in the radial direction of the heating cup corresponding to the first notch of the heating element.

9. The heating assembly according to claim 8, characterized in that: The heating assembly further includes a thermally conductive adhesive layer and an insulating film. The insulating film is attached to the outer end face of the heating element, and the insulating film has a first through hole and two second through holes. The first through hole is corresponding to the water outlet. One power connection terminal of the heating element passes through one of the second through holes. The thermally conductive adhesive layer bonds the inner end face of the heating element and the insulating film to the bottom outer end face of the heating cup.

10. A coffee machine, including a heating element, characterized in that: The heating component is the heating component described in claim 8 or 9 above.

Images