CN213599573U

CN213599573U - Heating member assembly and liquid heating device

Info

Publication number: CN213599573U
Application number: CN202022497916.6U
Authority: CN
Inventors: 李宁; 吕宗权; 周祥勋
Original assignee: NINGBO AIJIA ELECTRICAL APPLIANCE CO Ltd
Current assignee: NINGBO AIJIA ELECTRICAL APPLIANCE CO Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-02
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses a heating member subassembly, including heating member, heat pipe, the heating member holding is equipped with feed liquor end and liquid outlet end in the heat pipe, and the heating member includes the electrothermal tube and wraps up the heat-conducting layer on the electrothermal tube, and the tip of electrothermal tube exposes outside the heat-conducting layer, is equipped with liquid channel and seal structure between heat-conducting layer and the heat pipe, and liquid channel communicates with feed liquor end, liquid outlet end respectively, and seal structure separates the tip and the liquid channel of electrothermal tube. Also discloses a liquid heating device, which comprises the heating body assembly. Through setting up seal structure and respectively sealing up with heat-conducting layer, heat pipe cooperation, separate electrothermal tube and liquid channel, avoid electrothermal tube and the liquid direct contact who treats the heating, improved the life of electrothermal tube, reduce the requirement to its material, play fine sealed effect simultaneously between to heat-conducting layer and the heat pipe.

Description

Heating member assembly and liquid heating device

Technical Field

The utility model relates to a firing equipment technical field, concretely relates to heating member subassembly and liquid heating device.

Background

The heating body of the existing heating body assembly mainly adopts three types, namely an immersed stainless steel heating body, a quartz glass tube type heating body, a cast aluminum heating body and the like.

The cast aluminum heating body generally includes a heating pipe and an aluminum heat conduction layer wrapped on the heating pipe, a heat conduction cylinder is sleeved outside the aluminum heat conduction layer to form a heating body assembly, and a liquid inlet and a liquid outlet are arranged on the heat conduction cylinder. In the heating process of the heating pipe, liquid can contact with the end part of the heating pipe when flowing between the aluminum heat conduction layer and the heat conduction cylinder, so that the corrosion resistance of the heating pipe is poor, and the requirement on the material of the heating pipe is high.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical defect, the utility model discloses a technical scheme lie in, provide a heating member subassembly, including heating member, heat pipe, the heating member holding is in the heat pipe, be equipped with feed liquor end and play liquid end on the heat pipe, the heating member includes the electrothermal tube and wraps up the heat-conducting layer on the electrothermal tube, the tip of electrothermal tube exposes outside the heat-conducting layer, be equipped with liquid channel and seal structure between heat-conducting layer and the heat pipe, liquid channel respectively with feed liquor end, play liquid end intercommunication, seal structure separates the tip and the liquid channel of electrothermal tube.

Further, the liquid channel is spiral or labyrinth.

Furthermore, the liquid channel is arranged on the outer wall of the heat conducting layer, a heat transfer part is arranged on the liquid channel, and a temperature sensing part which is arranged corresponding to the heat transfer part and used for mounting a temperature sensing element is arranged on the heat conducting pipe;

or the liquid channel is arranged on the inner wall of the heat conduction pipe, and the heat conduction pipe is provided with a temperature sensing part for mounting the temperature sensing element.

Furthermore, the outer wall of the heat conducting layer is provided with a spiral flow guide groove along the extending direction of the outer wall, and a liquid channel is formed between the spiral flow guide groove and the inner wall of the heat conducting pipe;

or the inner wall of the heat conduction pipe is provided with a spiral diversion trench along the extension direction of the inner wall, and a liquid channel is formed between the spiral diversion trench and the outer wall of the heat conduction layer.

Furthermore, the end part of the heat conduction pipe is also provided with a sealing sleeve sleeved on the heat conduction layer, the heat conduction layer is provided with an extension part, and the sealing structure is arranged between the extension part and the sealing sleeve.

Further, seal structure includes the sealed recess and the sealed protruding muscle of cooperation joint, perhaps, the sealed recess and the sealing washer of cooperation joint, perhaps, seal structure includes the internal thread and the external screw thread of cooperation threaded connection.

Furthermore, a positioning part is arranged on the heat conduction layer, a positioning part is correspondingly arranged in the sealing sleeve, the positioning part is arranged on the positioning part in a matched mode, and the positioning part is located between the sealing structure and the liquid channel.

Furthermore, the sealing sleeves are tightly sleeved at two ends of the heat conduction pipe, and the liquid inlet ends and the liquid outlet ends are arranged on the sealing sleeves in a one-to-one correspondence manner.

The utility model also provides a liquid heating device, its characterized in that: comprises the heating body component.

Compared with the prior art the utility model discloses technical scheme's beneficial effect does:

the utility model provides a pair of heating member subassembly and liquid heating device through setting up seal structure respectively with heat-conducting layer, the sealed cooperation of heat pipe, separates electrothermal tube and liquid channel, avoids the electrothermal tube and the liquid direct contact of waiting to heat, has improved the life of electrothermal tube, reduces the requirement to its material, plays fine sealed effect simultaneously between to heat-conducting layer and the heat pipe.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of a heating body assembly according to an embodiment of the present invention;

fig. 2 is a perspective view of another embodiment of a heating body assembly according to an embodiment of the present invention;

FIG. 3 is an exploded schematic view of FIG. 1;

fig. 4 is a longitudinal sectional view of fig. 2.

The reference numbers are as follows:

1. the liquid temperature sensing device comprises a heating body, 2, a heat conduction pipe, 3, a liquid inlet end, 4, a liquid outlet end, 5, an electric heating pipe, 6, a heat conduction layer, 7, a liquid channel, 8, a sealing structure, 9, a heat conduction part, 10, a temperature sensing part, 11, a sealing sleeve, 12, an extension part, 13, a sealing groove, 14, a sealing convex rib, 15, a positioning part, 16 and a positioning part.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

Please refer to fig. 1-4, the utility model provides a heating member assembly, including heating member 1, heat pipe 2, heating member 1 holds in heat pipe 2, be equipped with feed liquor end 3 and play liquid end 4 on heat pipe 2, heating member 1 includes electrothermal tube 5 and wraps up heat-conducting layer 6 on electrothermal tube 5, the tip of electrothermal tube 5 exposes outside heat-conducting layer 6, be equipped with liquid channel 7 and seal structure 8 between heat-conducting layer 6 and heat pipe 2, liquid channel 7 communicates with feed liquor end 3, play liquid end 4 respectively, seal structure 8 separates the tip and the liquid channel 7 of electrothermal tube 5.

In particular, the liquid channel 7 is spiral or labyrinth. The liquid flowing path is increased, so that the liquid in the channel is sufficiently heated, and the heating efficiency is improved.

In order to facilitate the measurement of the temperature inside the heating body assembly, as one implementation of the liquid channel 7, the liquid channel 7 is disposed on the outer wall of the heat conducting layer 6, the liquid channel 7 is provided with a heat transferring portion 9, and the heat conducting pipe 2 is provided with a temperature sensing portion 10 disposed corresponding to the heat transferring portion 9 and used for mounting a temperature sensing element.

Specifically, the outer wall of the heat conducting layer 6 is provided with a diversion trench along the extending direction thereof, and a liquid channel 7 is formed between the diversion trench and the inner wall of the heat conducting pipe 2. The edge of the diversion trench is tightly attached to the inner wall of the heat conduction pipe 2, wherein the diversion trench is spiral or labyrinth.

In order to conduct the heat generated by the heating body 1 to the wall of the heat conduction pipe 2 quickly, the temperature sensing element can measure more accurately. The heat transfer portion 9 is at least partially closely attached to the inner wall of the heat transfer pipe 2.

As another implementation of the liquid passage 7, in order to facilitate the measurement of the temperature inside the heating body assembly, alternatively, the liquid passage 7 is disposed on the inner wall of the heat pipe 2, and the heat pipe 2 is provided with a temperature sensing portion 10 for mounting a temperature sensing element.

Specifically, the inner wall of the heat conducting pipe 2 is provided with a diversion trench along the extending direction thereof, and a liquid channel 7 is formed between the diversion trench and the outer wall of the heat conducting layer 6. The edge of the diversion trench is tightly attached to the outer wall of the heat conduction layer 6, wherein the diversion trench is spiral or labyrinth.

Specifically, the temperature sensing part 10 is planar, and is convenient to process.

Preferably, the end of the heat conduction pipe 2 is further provided with a sealing sleeve 11 sleeved on the heat conduction layer 6, the heat conduction layer 6 is provided with an extension 12, and the sealing structure 8 is arranged between the extension 12 and the sealing sleeve 11. The heat conduction pipe 2 is tightly wrapped by the sealing sleeve 11 to seal the joint between the sealing sleeve 11 and the heat conduction layer 6, and the sealing structure 8 is used for sealing the joint between the sealing sleeve 11 and the heat conduction layer 6 to further improve the sealing performance of the heating body assembly and prevent water leakage.

In order to facilitate installation and achieve good sealing, the sealing sleeve 11 is a silica gel sealing sleeve tightly sleeved on the heat conducting pipe 2, and the silica gel sealing sleeve is tightly connected with the extension portion 12 through a sealing structure 8. The heat conducting layer 6 is made of aluminum die-cast on the electric heating tube 5, the diversion trench is formed in the aluminum, and the diversion trench and the sealing structure 8 are convenient to machine, wherein the diversion trench and the heat conducting layer 6 are integrally formed in the die-cast process or are additionally formed in the aluminum. The extension parts 12 are respectively arranged at two ends of the heat conduction layer 6, the diameters of the two ends of the heat conduction layer 6 are smaller than that of the middle part, each extension part 12 is respectively provided with a sealing structure 8, and the two sealing structures 8 are respectively arranged corresponding to the liquid inlet end 3 and the liquid outlet end 4 one to one.

Specifically, the sealing structure 8 includes a sealing groove and a sealing rib that are engaged with each other, or a sealing groove and a sealing ring that are engaged with each other, or an internal thread and an external thread that are engaged with each other and are connected with each other by a screw. Wherein, the sealing groove and the sealing convex rib are both annular and are provided with one group or a plurality of groups at intervals.

As shown in fig. 3, the sealing structure 8 of the present embodiment is specifically that the sealing groove 13 is disposed on the outer side wall of the extension portion 12, the sealing rib 14 is disposed on the inner side wall of the sealing sleeve 11, and the sealing groove 13 and the sealing rib 14 are respectively formed integrally with the heat conducting layer 6 and the sealing sleeve 11. Not only the above embodiment is not limited, but also the sealing groove is provided on the inner side wall of the sealing sleeve 11, the sealing rib is provided on the outer side wall of the extension portion 12, and the sealing groove and the sealing rib are respectively formed integrally with the heat conducting layer 6 and the sealing sleeve 11. The heat conduction layer 6 and the sealing sleeve 11 are in sealing fit with the sealing grooves through sealing rings, wherein the sealing rings are independent pieces. Alternatively, the inner thread may be provided on the inner sidewall of the sealing sleeve 11, and the outer thread may be provided on the outer sidewall of the extension 12.

Preferably, the heat conducting layer 6 is provided with a positioning member 15, the sealing sleeve 11 is correspondingly provided with a positioning portion 16, the positioning member 15 is fittingly provided on the positioning portion 16, and the positioning member 15 is located between the sealing structure 8 and the liquid passage 7. Because the silica gel seal cover 11 can wrap up the heat conduction pipe 2 and the electrothermal tube 5 tightly at the same time, the seal cover 11 is matched and fixed with the positioning piece 15 on the heat conduction layer 6 through the positioning part 16, so as to improve the sealing performance of the heat conduction pipe 2, the seal cover 11 and the heating body 1.

Specifically, the positioning member 15 is a protrusion or a rib, and the positioning portion 16 is a groove, or the positioning member 15 is a groove, and the positioning portion 16 is a protrusion or a rib. A groove is preferably arranged in the sealing sleeve 11, and the groove is arranged away from the water inlet end 3 or the water outlet end 4; the heat conduction layer 6 is preferably provided with a convex rib connected with the extension part 12, the convex rib and the heat conduction layer 6 are integrally formed, the alignment installation is convenient, and the structural strength is improved. Be equipped with the depressed part that extends with protruding muscle syntropy in the seal cover 11, the both sides of depressed part keep the interval relatively and are equipped with the dog, form the recess that is used for fixed protruding muscle between two dogs and the depressed part, and the seal cover 11 of silica gel material can fix a position protruding muscle.

Preferably, the sealing sleeves 11 are tightly sleeved at the two ends of the heat conduction pipe 2, and the liquid inlet ends 3 and the liquid outlet ends 4 are arranged on the sealing sleeves 11 in a one-to-one correspondence manner.

In practical use, in order to facilitate installation and fixation of the heating body assembly and avoid water leakage of the heating body assembly caused by thermal expansion of the silica gel sealing sleeve, the silica gel sealing sleeve is usually sleeved with a plastic joint or a metal joint, and then the plastic joint or the metal joint at two ends of the heat conduction pipe 2 is fixed by adopting a connecting frame, so that the silica gel sealing sleeve, the heat conduction pipe 2 and the heating body 1 are fixed; or the upper cover body and the lower cover body which are designed in a split mode are used for fixing the silica gel sealing sleeve, the heat conducting pipe 2 and the heating body 1. As shown in fig. 1 and 2, in order to facilitate the liquid to enter and exit, the sealing sleeves 11 at both ends are respectively provided with openings, and the plastic joint or the metal joint or the cover plate is provided with a connecting pipe communicated with the openings; or a first connecting pipe is arranged on the sealing sleeve 11, the first connecting pipe and the sealing sleeve 11 are integrally arranged, and an opening for the first connecting pipe to pass through or a second connecting pipe communicated with the first connecting pipe is arranged on the plastic joint or the metal joint or the cover plate. The difference between fig. 1 and fig. 2 is only the structure of the inlet end 3 and the outlet end 4, namely, the structure is an opening or a connecting pipe.

The utility model also provides a liquid heating device, including foretell heating member subassembly. The liquid heating device can be a coffee machine, a water dispenser, a water heater and the like.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A heating body assembly characterized by: the heating device comprises a heating body (1) and a heat conduction pipe (2), wherein the heating body (1) is accommodated in the heat conduction pipe (2), a liquid inlet end (3) and a liquid outlet end (4) are arranged on the heat conduction pipe (2), the heating body (1) comprises an electric heating pipe (5) and a heat conduction layer (6) wrapped on the electric heating pipe (5), the end part of the electric heating pipe (5) is exposed out of the heat conduction layer (6), a liquid channel (7) and a sealing structure (8) are arranged between the heat conduction layer (6) and the heat conduction pipe (2), the liquid channel (7) is respectively communicated with the liquid inlet end (3) and the liquid outlet end (4), and the sealing structure (8) separates the end part of the electric heating pipe (5).

2. The heating body assembly of claim 1, wherein: the liquid channel (7) is spiral or labyrinth.

3. The heating body assembly of claim 1 or 2, wherein: the liquid channel (7) is arranged on the outer wall of the heat conducting layer (6), a heat transfer part (9) is arranged on the liquid channel (7), and a temperature sensing part (10) which is arranged corresponding to the heat transfer part (9) and used for mounting a temperature sensing element is arranged on the heat conducting pipe (2);

or the liquid channel (7) is arranged on the inner wall of the heat conduction pipe (2), and the heat conduction pipe (2) is provided with a temperature sensing part (10) for mounting a temperature sensing element.

4. The heating body assembly of claim 3, wherein: the outer wall of the heat conducting layer (6) is provided with a spiral flow guide groove along the extending direction, and a liquid channel (7) is formed between the spiral flow guide groove and the inner wall of the heat conducting pipe (2);

or a spiral diversion trench is formed in the inner wall of the heat conduction pipe (2) along the extending direction of the heat conduction pipe, and a liquid channel (7) is formed between the spiral diversion trench and the outer wall of the heat conduction layer (6).

5. The heating body assembly of claim 1 or 2, wherein: the end part of the heat conduction pipe (2) is also provided with a sealing sleeve (11) sleeved on the heat conduction layer (6), the heat conduction layer (6) is provided with an extension part (12), and the sealing structure (8) is arranged between the extension part (12) and the sealing sleeve (11).

6. The heating body assembly of claim 5, wherein: the sealing structure (8) comprises a sealing groove and a sealing convex rib which are matched and clamped, or a sealing groove and a sealing ring which are matched and clamped, or an internal thread and an external thread which are matched and connected through threads.

7. The heating body assembly of claim 5, wherein: be equipped with setting element (15) on heat-conducting layer (6), correspond in seal cover (11) and be equipped with location portion (16), location element (15) cooperation is located on location portion (16), setting element (15) are located between seal structure (8) and liquid channel (7).

8. The heating body assembly of claim 5, wherein: the sealing sleeves (11) are tightly sleeved at two ends of the heat conduction pipes (2), and the liquid inlet ends (3) and the liquid outlet ends (4) are arranged on the sealing sleeves (11) in a one-to-one correspondence mode.

9. A liquid heating apparatus, characterized by: comprising a heating body assembly as claimed in any one of claims 1 to 8.