Liquid heating module and instant heating type heating equipment

Abstract

The utility model discloses a liquid heating module and instant heating equipment, which comprises a heating tube, one end of the heating tube is connected with a liquid inlet joint, and the other end of the heating tube is connected with a liquid outlet joint; a heating cavity is formed in the heating pipe; the heating pipe is provided with a plurality of heat conduction pieces in the heating cavity in the circumferential direction, each heat conduction piece is welded to the inner circumferential wall of the heating pipe, and each heat conduction piece is provided with a plurality of heat conduction fins; therefore, the heated contact area of the to-be-heated liquid is increased, the heating efficiency is improved, the liquid in the heating cavity flows more smoothly, the flow guiding effect is achieved, meanwhile, the effective size of the heating cavity is reduced, the heating cavity can be fully filled with the to-be-heated liquid, and the heating efficiency is improved. Therefore, the problems of bubble generation and partial dry burning in the heating cavity caused by lack of liquid in partial areas in the heating cavity are reduced, the structure is safer to use, and the heating efficiency and the structure reliability are higher.

Description

Technical Field

[0001] The utility model relates to the technical field of instant heating, in particular to a liquid heating module and an instant heating device. Background Art

[0002] A liquid heating module generally includes a heating tube, a water inlet joint and a water outlet joint. Heat is generated by energizing the heating tube, and then conducted to the water flowing through the heating tube, thereby realizing the heating of water.

[0003] However, in the actual use process, the liquid heating module is placed obliquely, or due to working in a vibrating environment (such as being used in a new energy vehicle and the vehicle is on a bumpy road section), the water in some areas of the heating tube is lacking, resulting in the generation of bubbles and partial dry burning in the water-lacking part, thereby affecting the structural reliability of the liquid heating module. Summary of the Invention

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings, and provide a liquid heating module and an instant heating device, so as to increase the heat transfer contact area of the liquid to be heated, improve the heating efficiency, and make the liquid in the heating cavity flow more smoothly, playing a guiding role. At the same time, the effective volume of the heating cavity is reduced, so that the liquid to be heated can fully fill the heating cavity, which is beneficial to reducing the problems of bubble generation and partial dry burning in the heating cavity due to the lack of liquid in some areas, making the structure safer to use, and having higher heating efficiency and structural reliability.

[0005] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0006] The first aspect of the utility model provides a liquid heating module, including a heating tube, one end of the heating tube is connected with a liquid inlet joint, and the other end of the heating tube is connected with a liquid outlet joint; a heating cavity is arranged in the heating tube;

[0007] A plurality of heat conducting members are arranged along the circumferential direction in the heating cavity of the heating tube, each heat conducting member is welded on the inner peripheral wall of the heating tube, and each heat conducting member has a plurality of heat conducting fins.

[0008] Optionally, a middle partition member is arranged at the center in the heating tube, and the middle partition member and the heating tube jointly enclose a ring-shaped heating cavity.

[0009] Optionally, the partition member includes a partition tube and plug members disposed at both ends of the partition tube; the two plug members are respectively abutted against the liquid inlet joint and the liquid outlet joint, and the sealing member is abutted against the inner wall of the heating tube; a liquid inlet cavity is formed between one of the sealing members and the liquid inlet joint, and a liquid outlet cavity is formed between the other sealing member and the liquid outlet joint; both of the two sealing members are provided with first through holes that communicate the heating cavity with the liquid inlet cavity and the liquid outlet cavity.

[0010] Optionally, both of the two sealing members are provided with a plurality of first through holes.

[0011] Optionally, the plurality of first through holes are evenly distributed in the circumferential direction.

[0012] Optionally, a second through hole is formed through the center of the sealing member near the liquid outlet joint, and the second through hole communicates the liquid outlet cavity with the inside of the partition tube.

[0013] Optionally, a plurality of heat conducting members are evenly distributed in the circumferential direction in the heating cavity.

[0014] Optionally, the heating tube and the heat conducting member are fixed by brazing.

[0015] Optionally, the heating tube includes a tube body and a resistive heating layer provided on the outer peripheral wall of the tube body; the resistive heating layer is provided with at least two heating regions distributed along the axial direction of the tube body and having different power densities; the power densities of the at least two heating regions decrease sequentially along the axial direction of the tube body.

[0016] In a second aspect of the present invention, an instant heating device is provided, which includes the liquid heating module as described in the above item.

[0017] The beneficial effects of the present invention are as follows: In this embodiment, by providing a plurality of heat conducting members with heat conducting fins in the heating cavity, the heat receiving contact area of the liquid to be heated is increased, the heating efficiency is improved, and the liquid flow in the heating cavity is made smoother, playing a guiding role. At the same time, the effective volume of the heating cavity is reduced, so that the liquid to be heated can fully fill the heating cavity, which helps to reduce the problems of bubble generation and partial dry burning in the heating cavity due to the lack of liquid in some areas, making the structure safer to use and having higher heating efficiency and structural reliability. Description of the Drawings

[0018] Figure 1 is a schematic cross-sectional view of the liquid heating module provided in the first embodiment of the present invention;

[0019] Figure 2 is an exploded view of the liquid heating module provided in the first embodiment of the present invention;

[0020] Figure 3 is an exploded view of the liquid heating module provided in the second embodiment of the present invention;

[0021] Figure 4 is Figure 3 A partial enlarged schematic view at position A in the middle;

[0022] Figure 5 is a cross-sectional schematic view of the liquid heating module provided in the second embodiment of the present utility model;

[0023] Figure 6 is a structural schematic view of the liquid heating module provided in the third embodiment of the present utility model;

[0024] Explanation of reference numerals: 1, heating tube; 2, liquid inlet joint; 3, liquid outlet joint; 4, heating cavity; 5, heat conducting member; 51, heat conducting fins; 61, middle partition tube; 62, plug member; 621, first through hole; 622, second through hole; 7, liquid inlet cavity; 8, liquid outlet cavity. Detailed implementation manners

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the scope of implementation of the present utility model is not limited thereto.

[0026] Embodiment 1: As Figures 1 to 5 shown, a liquid heating module described in this embodiment can be applied to devices that need to heat liquids, such as instant hot water dispensers and new energy vehicles. It includes a heating tube 1, and the heating tube 1 includes a tube body and a resistive heating layer provided on the outer peripheral wall of the tube body. The resistive heating layer is a thick film resistive heating layer, and heat is generated by energizing the resistive heating layer and conducted to the tube body; one end of the heating tube 1 is connected with a liquid inlet joint 2, and the other end of the heating tube 1 is connected with a liquid outlet joint 3; a heating cavity 4 is arranged inside the heating tube 1; the liquid to be heated is conveyed into the heating cavity 4 through the liquid inlet joint 2, and after the liquid to be heated in the heating cavity 4 is heated, it is discharged from the liquid outlet joint 3;

[0027] A plurality of heat conducting members 5 are arranged circumferentially in the heating cavity 4 of the heating tube 1. Each heat conducting member 5 is welded to the inner peripheral wall of the heating tube 1, and each heat conducting member 5 has a plurality of heat conducting fins 51. The heat conducting member 5 is integrally fan-shaped, so that the heat conducting member 5 fits more closely to the inner wall of the heating tube 1, further improving the heat conduction efficiency.

[0028] Specifically, when the liquid heating module of this embodiment is actually applied, the liquid to be heated is conveyed into the heating cavity 4 through the liquid inlet joint 2. The heating tube 1 is energized to generate heat, and the heat is conducted to the liquid to be heated in the heating cavity 4 and at the same time conducted to the heat conducting member 5. It is conducted to the liquid to be heated through each heat conducting fin 51 of the heat conducting member 5, thereby increasing the heat dissipation area, making the heat receiving contact area of the liquid to be heated larger, thus improving the heating efficiency. At the same time, by arranging a plurality of heat conducting members 5 in the heating cavity 4 and arranging heat dissipating fins on the heat conducting members 5, the liquid flow in the heating cavity 4 is smoother, playing a guiding role, and at the same time reducing the effective volume of the heating cavity 4, so that the liquid to be heated can fully fill the heating cavity 4, which is conducive to avoiding the problems of generating bubbles and partial dry burning in the heating cavity 4 due to the lack of liquid in some areas. The structure is safer to use, and the heating efficiency and structural reliability are higher.

[0029] In this embodiment, a plurality of heat conducting members 5 are arranged in the heating cavity 4. Compared with the way that the heat conducting member 5 is of an integral structure, the heat conducting member 5 can be more easily welded on the inner wall of the heating tube 1, making the welding effect of the heat conducting member 5 better and the heat conduction effect better.

[0030] In this embodiment, the number of the heat conducting members 5 can be set according to actual needs. For example, in this embodiment, the number of the heat conducting members 5 is three, as Figure 2 and Figure 3 shown.

[0031] As Figure 2 and Figure 3 shown, in a liquid heating module described in this embodiment, in some embodiments, a plurality of heat conducting members 5 are evenly distributed in the heating cavity 4 in the circumferential direction. With this setting, the heat conduction is more balanced and the heating effect is better, so as to avoid the problem of uneven heating.

[0032] In a liquid heating module described in this embodiment, in some embodiments, the heating tube 1 and the heat conducting member 5 are fixed by brazing. In this embodiment, the heat conducting member 5 is fixed on the inner wall of the heating tube 1 by brazing, making the heat conduction efficiency between the heating tube 1 and the heat conducting member 5 higher and the heat conduction effect better.

[0033] Embodiment 2: As Figures 3 to 5 shown, on the basis of Embodiment 1, in this embodiment, a partition member is arranged at the center in the heating tube 1, and the partition member and the heating tube 1 jointly enclose a ring-shaped heating cavity 4; the rest of the structure is the same as that of Embodiment 1. By arranging the partition member in this embodiment, the effective volume of the heating cavity 4 is further reduced, so that the liquid to be heated can more fully fill the heating cavity 4, which is conducive to avoiding the problems of generating bubbles and partial dry burning in the heating cavity 4 due to the lack of liquid in some areas. The structure is safer to use and the heating efficiency is higher.

[0034] A liquid heating module according to this embodiment. In some embodiments, the partition member includes a partition tube 61 and plug members 62 provided at both ends of the partition tube 61; the two plug members 62 are respectively abutted against the liquid inlet joint 2 and the liquid outlet joint 3, and the plugging member is abutted against the inner wall of the heating tube 1; a liquid inlet cavity 7 is formed between one plugging member and the liquid inlet joint 2, and a liquid outlet cavity 8 is formed between the other plugging member and the liquid outlet joint 3; both of the two plugging members are provided with first through holes 621 that communicate the heating cavity 4 with the liquid inlet cavity 7 and the liquid outlet cavity 8.

[0035] Specifically, in this embodiment, by providing a plugging member and the liquid inlet joint 2 to form a liquid inlet cavity 7, a buffer is provided for the liquid to be heated entering the heating cavity 4, so that the liquid to be heated can be more fully heated in the heating cavity 4. And, by forming a liquid outlet cavity 8 between the plugging member and the liquid outlet joint 3, a buffer is provided for the heated liquid, so that the liquid in the heating cavity 4 can be discharged.

[0036] Such as Figure 3 and Figure 5 shown, a liquid heating module according to this embodiment. In some embodiments, both of the two plugging members are provided with a plurality of first through holes 621. In this embodiment, by providing a plurality of first through holes 621 in the plugging member, the liquid to be heated can flow from the liquid inlet cavity 7 into the heating cavity 4 to quickly fill the heating cavity 4, and the heated liquid can be discharged into the liquid outlet cavity 8, so that the heated liquid can be mixed in the liquid outlet cavity 8 to improve the accuracy of the liquid outlet temperature detection.

[0037] Such as Figure 3 shown, a liquid heating module according to this embodiment. In some embodiments, the plurality of first through holes 621 are arranged circumferentially and evenly. In this embodiment, the plurality of first through holes 621 are arranged evenly to facilitate the even filling of the liquid in the heating cavity 4 and the even outflow of the heated liquid in the heating cavity 4 into the liquid outlet cavity 8.

[0038] Such as Figure 5 shown, a liquid heating module according to this embodiment. In some embodiments, a second through hole 622 is provided through the center of the plugging member close to the liquid outlet joint 3, and the second through hole 622 communicates the liquid outlet cavity 8 with the inside of the partition tube 61. In this embodiment, by providing the second through hole 622, the heated liquid in the liquid outlet cavity 8 can enter the partition tube 61, so that the liquid to be heated in the heating cavity 4 can be preheated, further improving the heating efficiency.

[0039] Embodiment Three: Such as Figure 6As shown in the figure, on the basis of Embodiment 1 or Embodiment 2, at least two heating regions with different power densities are provided in the resistive heating layer and are distributed along the axial direction of the tube body; the power densities of at least two of the heating regions decrease successively along the axial direction of the tube body. Thus, different heating powers can be applied to different positions of the heating chamber 4 for heating; thus, different heating effects are formed to meet different heating requirements. For example, in the case where steam needs to be generated, saturated steam can be generated more fully. The heating regions can be set to two, three, or more than three, and users can freely set according to actual needs.

[0040] Specifically, the power density of the heating region close to the liquid inlet joint 2 is greater than the power density of the heating region close to the liquid outlet joint 3.

[0041] Such as Figures 1 to 6 As shown in the figure, this embodiment also provides an instant heating device, including the liquid heating module as described in the above item. By adopting the liquid heating module of the above embodiment, this embodiment thus has all the beneficial effects of the above liquid heating module, which will not be elaborated here.

[0042] The above description is only a preferred embodiment of the present invention. Therefore, equivalent changes or modifications made according to the structures, features, and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. A liquid heating module, characterized in that, It includes a heating tube (1), one end of the heating tube (1) is connected with a liquid inlet joint (2), and the other end of the heating tube (1) is connected with a liquid outlet joint (3); a heating cavity (4) is arranged in the heating tube (1). A plurality of heat conducting members (5) are arranged circumferentially in the heating cavity (4) of the heating tube (1), each heat conducting member (5) is welded on the inner peripheral wall of the heating tube (1), and each heat conducting member (5) has a plurality of heat conducting fins (51).

2. The liquid heating module according to claim 1, wherein, A middle partition member is arranged at the center in the heating tube (1), and the middle partition member and the heating tube (1) jointly enclose a ring-shaped heating cavity (4).

3. The liquid heating module according to claim 2, wherein, The middle partition member includes a middle partition tube (61) and plug members (62) arranged at both ends of the middle partition tube (61); the two plug members (62) are respectively abutted against the liquid inlet joint (2) and the liquid outlet joint (3), and the plug members (62) are abutted against the inner wall of the heating tube (1); a liquid inlet cavity (7) is formed between one plug member (62) and the liquid inlet joint (2), and a liquid outlet cavity (8) is formed between the other plug member (62) and the liquid outlet joint (3); a first through hole (621) for communicating the heating cavity (4) with the liquid inlet cavity (7) and the liquid outlet cavity (8) is arranged through both of the two plug members (62).

4. The liquid heating module according to claim 3, wherein, A plurality of first through holes (621) are arranged through both of the two plug members (62).

5. The liquid heating module according to claim 4, wherein, The plurality of first through holes (621) are arranged circumferentially and evenly.

6. The liquid heating module according to claim 3, wherein, A second through hole (622) is arranged through the center of the plug member (62) close to the liquid outlet joint (3), and the second through hole (622) communicates the liquid outlet cavity (8) with the inside of the middle partition tube (61).

7. The liquid heating module according to claim 1, characterized in that, The plurality of heat conducting members (5) are arranged circumferentially and evenly in the heating cavity (4).

8. The liquid heating module according to claim 1, wherein, The heating tube (1) and the heat conducting members (5) are fixed by brazing.

9. The liquid heating module according to claim 1, wherein The heating tube (1) includes a tube body and a resistance heating layer arranged on the outer peripheral wall of the tube body; the resistance heating layer is provided with at least two heating regions distributed along the axial direction of the tube body and having different power densities; the power densities of the at least two heating regions decrease sequentially along the axial direction of the tube body.

10. An instant heating device, characterized in that, It includes the liquid heating module according to any one of claims 1 to 9.

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