Heat generating assembly

1. A heat generating assembly ( 13 ), comprising a water inlet ( 133 ), a water outlet ( 134 ), and a heat generating body ( 135 ) provided between the water inlet ( 133 ) and the water outlet ( 134 ), wherein the heat generating body ( 135 ) comprises a heating film ( 132 ), a bottom cover ( 131 ) for the heating film ( 132 ), and a protective cover ( 136 ) for the heating film ( 132 ), the heating film ( 132 ) is placed in the protective cover ( 136 ) and capable of generating heat upon energization to heat water flowing through the heat generating body ( 135 ), wherein an exhaust passage ( 137 ) is provided in an upper portion of the bottom cover ( 131 ).

2. The heat generating assembly ( 13 ) according to claim 1 , wherein the heating film ( 132 ) is sheet-shaped and has an outer contour in a U shape.

3. The heat generating assembly ( 13 ) according to claim 1 , wherein a shape of the protective cover ( 136 ) substantially corresponds to a shape of the heating film ( 132 ).

4. The heat generating assembly ( 13 ) according to claim 1 , wherein the heat generating body ( 135 ) has an overall U shape, such that the water inlet ( 133 ) and the water outlet ( 134 ) are at the same height.

5. The heat generating assembly ( 13 ) according to claim 1 , wherein the exhaust passage ( 137 ) is provided between the water inlet ( 133 ) and the water outlet ( 134 ).

6. The heat generating assembly ( 13 ) according to claim 1 , wherein a recess ( 138 ) is provided at a lower portion of the bottom cover ( 131 ).

7. The heat generating assembly ( 13 ) according to claim 6 , wherein the recess ( 138 ) extends over most of the width (W) of the bottom cover ( 131 ).

8. The heat generating assembly ( 13 ) according to claim 1 , wherein outer contours of the bottom cover ( 131 ) and the protective cover ( 136 ) substantially coincide with each other, and the bottom cover ( 131 ) and the protective cover ( 136 ) are connected by a fixing member ( 130 ).

9. The heat generating assembly ( 13 ) according to claim 8 , wherein the bottom cover ( 131 ), the heating film ( 132 ), and the protective cover ( 136 ) are coupled to each other by a bolt to fix the heating film ( 132 ) to the protective cover ( 136 ).

10. A heat generating assembly ( 13 ), comprising a liquid inlet ( 133 ), a liquid outlet ( 134 ), and a heat generating body ( 135 ) provided between the liquid inlet ( 133 ) and the liquid outlet ( 134 ), wherein the heat generating body ( 135 ) comprises a heating film ( 132 ), a bottom cover ( 131 ) and a protective cover ( 136 ), the bottom cover ( 131 ) is fixed to a side of the heating film ( 132 ) so as to form a liquid channel, the heating film ( 132 ) is placed in the protective cover ( 136 ) and capable of generating heat upon energization to heat liquid flowing through the heat generating body ( 135 ), wherein an exhaust passage ( 137 ) is provided in an upper portion of the bottom cover ( 131 ).

11. The heat generating assembly ( 13 ) according to claim 10 , wherein the heating film ( 132 ) is sheet-shaped and has an outer contour in a U shape.

12. The heat generating assembly ( 13 ) according to claim 10 , wherein the heat generating body ( 135 ) has an overall U shape, such that the liquid inlet ( 133 ) and the liquid outlet ( 134 ) are at the same height.

13. The heat generating assembly ( 13 ) according to claim 10 , wherein the exhaust passage ( 137 ) is provided between the liquid inlet ( 133 ) and the liquid outlet ( 134 ).

14. The heat generating assembly ( 13 ) according to claim 10 , wherein a recess ( 138 ) is provided at a lower portion of the bottom cover ( 131 ).

15. The heat generating assembly ( 13 ) according to claim 14 , wherein the recess ( 138 ) extends over most of the width (W) of the bottom cover ( 131 ).

16. The heat generating assembly ( 13 ) according to claim 10 , wherein outer contours of the bottom cover ( 131 ) and the protective cover ( 136 ) substantially coincide with each other, and the bottom cover ( 131 ) and the protective cover ( 136 ) are connected by a fixing member ( 130 ).

17. The heat generating assembly ( 13 ) according to claim 16 , wherein the bottom cover ( 131 ), the heating film ( 132 ), and the protective cover ( 136 ) are coupled to each other by a bolt to fix the heating film ( 132 ) to the protective cover ( 136 ).

18. A coffee machine, comprising:

a machine body ( 1 ); and

a heat generating assembly ( 13 ) installed in the machine body ( 1 ), wherein the heat generating assembly ( 13 ) comprises a liquid inlet ( 133 ), a liquid outlet ( 134 ), and a heat generating body ( 135 ) provided between the liquid inlet ( 133 ) and the liquid outlet ( 134 ), wherein the heat generating body ( 135 ) comprises a heating film ( 132 ), a bottom cover ( 131 ) and a protective cover ( 136 ), the bottom cover ( 131 ) is fixed to a side of the heating film ( 132 ) so as to form a liquid channel, the heating film ( 132 ) is placed in the protective cover ( 136 ) and capable of generating heat upon energization to heat liquid flowing through the heat generating body ( 135 ), wherein an exhaust passage ( 137 ) is provided in an upper portion of the bottom cover ( 131 ).

19. The coffee machine according to claim 18 , wherein the exhaust passage ( 137 ) is provided between the liquid inlet ( 133 ) and the liquid outlet ( 134 ).

20. The coffee machine according to claim 18 , wherein outer contours of the bottom cover ( 131 ) and the protective cover ( 136 ) substantially coincide with each other, and the bottom cover ( 131 ) and the protective cover ( 136 ) are connected by a fixing member ( 130 ), and

wherein the bottom cover ( 131 ), the heating film ( 132 ), and the protective cover ( 136 ) are coupled to each other by a bolt to fix the heating film ( 132 ) to the protective cover ( 136 ).