CN219572295U - Heating body - Google Patents

Abstract

The utility model relates to the technical field of heating bodies, and particularly provides a heating body which comprises a shell, a heating pipe, an NTC temperature sensor and a mounting part, wherein the shell is mounted outside the heating pipe, the NTC temperature sensor comprises an external connection part, a limiting part and a probe, the limiting part is arranged between the external connection part and the probe, and the diameter of the limiting part is larger than the diameter of the external connection part and the diameter of the probe; the two ends of the heating pipe are provided with a water inlet pipe and a water outlet pipe, one end of the heating pipe, which is close to the water outlet pipe, is provided with a mounting through groove, and the mounting part is used for being mounted at the mounting through groove in a sealing way; wherein, the installation leads to groove department seal and sets up the installation department, and the probe passes the inside that the installation department stretched into the heating pipe, and the installation department is used for fixing NTC temperature sensor in the installation leads to groove department, and the installation department has sealed effect, can guarantee the leakproofness of heating pipe in the installation leads to groove department, prevents that the water in the heating pipe from spilling in the installation leads to the groove.

Description

Heating body

Technical Field

The utility model relates to the technical field of heating bodies, in particular to a heating body.

Background

The heating body is generally composed of a heating pipe and a shell, and is generally applied to pipeline machines and water dispensers.

At present, an NTC temperature sensor is further arranged in the heating body for detecting water temperature, but the NTC temperature sensor is usually installed in the communication hole of the housing through the installation part, that is, the installation part is installed in the communication hole of the housing, and the NTC temperature sensor extends into the interior of the heating pipe through the installation part, so that the length of the probe of the NTC temperature sensor in the interior of the heating pipe is limited, the length of the probe in the interior of the heating pipe is shorter (refer to fig. 1), and the NTC temperature sensor is caused to contact with water in the heating pipe slowly, so that the reaction of the NTC temperature sensor to sense water temperature is slower and the accuracy is lower.

Disclosure of Invention

The utility model aims to solve the problems that the NTC temperature sensor in the existing heating body has slower response to water temperature and lower accuracy.

In order to solve the problems, the utility model provides the following technical scheme:

the heating body comprises a shell, a heating pipe, an NTC temperature sensor and a mounting part, wherein the shell is mounted outside the heating pipe, the NTC temperature sensor comprises an external connection part, a limiting part and a probe, the limiting part is arranged between the external connection part and the probe, and the diameter of the limiting part is larger than the diameter of the external connection part and the diameter of the probe;

the two ends of the heating pipe are provided with a water inlet pipe and a water outlet pipe, one end of the heating pipe, which is close to the water outlet pipe, is provided with a mounting through groove, and the mounting part is used for being mounted at the mounting through groove in a sealing way;

the shell is provided with a communication hole coaxial with the mounting through groove, the diameter of the communication hole is matched with that of the limiting part, and the limiting part is used for being clamped in the communication hole;

the probe of the NTC temperature sensor penetrates through the mounting part and stretches into the heating pipe; the external connection part of the NTC temperature sensor is positioned outside the shell.

The heating body provided by the utility model has the following advantages compared with the prior art

The beneficial effects are that:

when the NTC temperature sensor is arranged at one end of the heating pipe, the mounting part is used for being mounted at the mounting through groove in a sealing manner, the probe of the NTC temperature sensor sequentially penetrates through the communication hole in the shell and the mounting through groove of the heating pipe to enter the heating pipe, the limiting part is clamped in the communication hole in the shell, the external part is positioned outside the shell, and compared with the condition that the mounting part is mounted in the communication hole in the shell and the NTC temperature sensor extends into the heating pipe through the mounting part in the prior art, the probe of the NTC temperature sensor can further extend into the heating pipe, the problem that the probe of the NTC temperature sensor is insufficient in length inside the heating pipe due to the fact that the communication hole in the shell is mounted in the mounting part is avoided, the probe of the NTC temperature sensor further extends into the heating pipe, the distance that the probe contacts water in the heating pipe is shortened, the speed of the temperature of the probe is improved, and the sensing accuracy of the NTC temperature sensor is improved; wherein, the installation leads to groove department seal and sets up the installation department, and the probe passes the inside that the installation department stretched into the heating pipe, and the installation department is used for fixing NTC temperature sensor in the installation leads to groove department, and the installation department has sealed effect, can guarantee the leakproofness of heating pipe in the installation leads to groove department, prevents that the water in the heating pipe from spilling in the installation leads to the groove.

Preferably, the installation through groove comprises a first through groove, and the first through groove is arranged on one side, close to the interior of the heating pipe, of the heating pipe;

the installation department includes the seal tube, the seal tube install in first logical groove department, the internal diameter of seal tube with NTC temperature sensor's probe phase-match, the external diameter of seal tube with first logical groove phase-match.

Preferably, the installation through groove further comprises a second through groove arranged on the heating pipe, the second through groove and the first through groove are coaxially arranged, and the second through groove is arranged on one side, away from the interior of the heating pipe, of the first through groove;

the installation department still include with sealing tube coupling's sealing ring, the internal diameter of sealing ring with sealing tube's internal diameter is unanimous, the external diameter of sealing ring is greater than sealing tube's external diameter, the sealing ring be used for install in inside the second through groove.

Preferably, the shell comprises a first shell and a second shell, the first shell is in welded connection with the second shell, the first shell and the second shell are enclosed to form a mounting cavity, and the heating pipe is used for being mounted in the mounting cavity.

Preferably, the casing further comprises a water inlet end cover and a water outlet end cover, the water inlet end cover is arranged at one end of the first casing and the second casing, which is close to the water inlet pipe, the water outlet end cover is arranged at one end of the first casing and the second casing, which is close to the water outlet pipe, the water outlet end cover is arranged at the outer part of the installation part, and the communication hole is arranged on the water outlet end cover.

Preferably, the shell further comprises a first protection tube fixedly arranged on one side, far away from the mounting through groove, of the communication hole, and the external connection part of the NTC temperature sensor is positioned in the first protection tube and extends from the inside of the first protection tube to the outside of the water outlet end cover.

Preferably, the shell further comprises a second protection pipe, the water outlet end cover is provided with a water outlet through hole coaxial with the water outlet pipe, the diameter of the water outlet through hole is matched with that of the water outlet pipe, the second protection pipe is fixedly arranged on one side, far away from the heating pipe, of the water outlet through hole, and the water outlet pipe extends into the second protection pipe from the water outlet through hole and extends from the second protection pipe to the outside of the water outlet end cover.

Preferably, the water outlet end cover and the water inlet end cover are both provided with connecting parts on the side wall facing one side of the heating pipe, the connecting parts are arranged along the edges of the water inlet end cover and the water outlet end cover, and when the water outlet end cover and the water inlet end cover are installed at two ends of the installation cavity, the connecting parts of the water outlet end cover and the connecting parts of the water inlet end cover are respectively inserted into two ends of the installation cavity.

Preferably, the heating body further comprises a first temperature controller and a second temperature controller, two through holes are formed in the first shell and/or the second shell, and the first temperature controller and the second temperature controller are respectively installed at the two through holes to enable the first temperature controller and the second temperature controller to be arranged outside the heating pipe.

Preferably, the sealing tube and the sealing ring of the mounting portion are both made of silica gel.

Drawings

Fig. 1 is a schematic cross-sectional structure of a heating body and an NTC temperature sensor according to the prior art;

fig. 2 is a schematic diagram of the overall structure of a heating body according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of an exploded structure of a heating body according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a heating body according to an embodiment of the present utility model;

fig. 5 is an enlarged partial view of fig. 4 at a in accordance with an embodiment of the present utility model.

Reference numerals illustrate:

1-shell, 10-communication hole, 11-first shell, 12-second shell, 13-water inlet end cover, 14-water outlet end cover, 15-first protection pipe, 16-water outlet through hole, 17-second protection pipe, 18-connecting part, 2-heating pipe, 21-inlet pipe, 22-outlet pipe, 23-installation through groove, 24-first through groove, 25-second through groove, 3-NTC temperature sensor, 31-external connection part, 32-limit part, 33-probe, 4-installation part, 41-sealing pipe, 42-sealing ring, 5-first temperature controller, 6-second temperature controller.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the coordinate system XYZ provided herein, the positive direction of the X axis represents the right direction, the negative direction of the X axis represents the left direction, the positive direction of the Y axis represents the front direction, the negative direction of the Y axis represents the rear direction, the positive direction of the Z axis represents the upper direction, and the negative direction of the Z axis represents the lower direction; the Z-axis, X-axis, Y-axis are meant to be illustrative only and to simplify the description of the present utility model and are not indicative or implying that the apparatus or elements being referred to must have, be constructed and operated in a particular orientation and therefore are not to be construed as limiting the present utility model.

Referring to fig. 2-5, the heating body provided by the utility model comprises a shell 1, a heating tube 2, an NTC temperature sensor 3 and a mounting part 4, wherein the shell 1 is mounted outside the heating tube 2, the NTC temperature sensor 3 comprises an external connection part 31, a limit part 32 and a probe 33, the limit part 32 is arranged between the external connection part 31 and the probe 33, and the diameter of the limit part 32 is larger than the diameter of the external connection part 31 and the diameter of the probe 33;

referring to fig. 2-3, two ends of the heating pipe 2 are provided with a water inlet pipe 21 and a water outlet pipe 22, one end of the heating pipe 2, which is close to the water outlet pipe 22, is provided with a mounting through groove 23, and the mounting part 4 is used for being mounted at the mounting through groove 23 in a sealing manner;

the shell 1 is provided with a communication hole 10 coaxial with the mounting through groove 23, the diameter of the communication hole 10 is matched with that of the limit part 32, and the limit part 32 is used for being clamped in the communication hole 10;

the probe 33 of the NTC temperature sensor 3 protrudes into the interior of the heating tube 2 through the mounting 4; the external connection 31 of the NTC temperature sensor 3 is located outside the housing 1.

In this embodiment, when the NTC temperature sensor 3 is mounted at one end of the heating pipe 2, the mounting portion 4 is used for being mounted at the mounting through groove 23 in a sealing manner, the probe 33 of the NTC temperature sensor 3 sequentially passes through the communication hole 10 on the housing 1 and the mounting through groove 23 of the heating pipe 2 to enter the heating pipe 2, the limiting portion 32 is clamped in the communication hole 10 on the housing 1, the external connection portion 31 is located outside the housing 1, compared with the case that the mounting portion 4 is mounted in the communication hole 10 of the housing 1 and the NTC temperature sensor extends into the heating pipe 2 through the mounting portion 4 in the prior art, the setting of this embodiment can enable the probe 33 of the NTC temperature sensor 3 to extend further into the heating pipe 2, so as to avoid the problem that the probe 33 of the NTC temperature sensor 3 is not located in the heating pipe 2 due to the communication hole 10 of the mounting portion 4 being mounted in the housing 1, the probe 33 of the NTC temperature sensor 3 is not enough in length, and the temperature sensor 33 of the NTC temperature sensor 3 is further enabled to extend into the heating pipe 2, thereby improving the accuracy of the temperature sensor 33 of the heating pipe 2, and further enabling the temperature sensor 33 to be sensed by the water to be more accurate; the installation through groove 23 is sealed to be provided with the installation portion 4, the probe 33 penetrates through the installation portion 4 to extend into the heating pipe 2, the installation portion 4 is used for fixing the NTC temperature sensor 3 at the installation through groove 23, the installation portion 4 has a sealing effect, the sealing performance of the heating pipe 2 at the installation through groove 23 can be guaranteed, and water in the heating pipe 2 is prevented from leaking out of the installation through groove 23.

Referring to fig. 4 to 5, the mounting through groove 23 preferably includes a first through groove 24, and the first through groove 24 is disposed on a side of the heating pipe 2 near the interior of the heating pipe 2;

the mounting portion 4 comprises a sealing tube 41, the sealing tube 41 is mounted at the first through groove 24, the inner diameter of the sealing tube 41 is matched with the probe 33 of the NTC temperature sensor 3, and the outer diameter of the sealing tube 41 is matched with the first through groove 24.

Specifically, the outer diameter of the sealing tube 41 is slightly larger than the diameter of the first through groove 24, so that the sealing tube 41 can be fixed at the first through groove 24 when being installed in the first through groove 24, and the inner diameter of the sealing tube 41 is slightly smaller than the NTC temperature sensor 3, so that the NTC temperature sensor 3 can be fixed in the sealing tube 41 when being installed in the sealing tube 41.

In this embodiment, the sealing tube 41 is installed in the first through groove 24, the NTC temperature sensor 3 is installed in the sealing tube 41, and the sealing tube 41 serves to fix the NTC temperature sensor 3 on one hand, and is used to block a gap between the NTC temperature sensor 3 and the first through groove 24, so as to avoid a problem of water leakage between the NTC temperature sensor 3 and the first through groove 24.

Referring to fig. 4-5, preferably, the mounting through slot 23 further includes a second through slot 25 disposed on the heating pipe 2, the second through slot 25 is disposed coaxially with the first through slot 24, and the second through slot 25 is disposed on a side of the first through slot 24 away from the interior of the heating pipe 2;

the mounting portion 4 further includes a sealing ring 42 connected to the sealing tube 41, an inner diameter of the sealing ring 42 is identical to an inner diameter of the sealing tube 41, an outer diameter of the sealing ring 42 is larger than an outer diameter of the sealing tube 41, and the sealing ring 42 is configured to be mounted inside the second through groove 25.

Preferably, the seal tube 41 and the seal ring 42 of the mounting portion 4 are made of silica gel, and the seal tube 41 and the seal ring 42 are integrally formed.

In this embodiment, the sealing tube 41 is installed in the first through groove 24, and the sealing ring 42 is installed in the second through groove 25, so that the installation part 4 is completely installed on one end of the heating tube 2, on one hand, the contact area between the installation part 4 and the heating tube 2 is increased, and the contact area between the NTC temperature sensor 3 and the installation part 4 is increased, which is beneficial to improving the fixing effect and the sealing effect of the installation part 4; on the other hand, the probe 33 of the NTC temperature sensor 3 sequentially passes through the communication hole 10 on the housing 1 and the mounting through groove 23 of the heating pipe 2 to enter the heating pipe 2, which is beneficial to shortening the distance between the limit part 32 of the NTC temperature sensor 3 and the end part of the heating pipe 2, so that the probe 33 of the NTC temperature sensor 3 further extends into the interior of the heating pipe 2, and further is beneficial to increasing the length of the probe 33 located in the interior of the heating pipe 2.

Referring to fig. 3, preferably, the housing 1 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are welded together, the first housing 11 and the second housing 12 enclose a mounting cavity, and the heating pipe 2 is configured to be mounted in the mounting cavity.

In this embodiment, the first housing 11 and the second housing 12 are disposed to protect the heating tube 2, and the outer shell wraps the outer wall of the heating tube to insulate heat, so that the heating tube is installed at a suitable position without leakage or even damage, which is beneficial to improving the service life of the heating tube.

Referring to fig. 3, preferably, the housing 1 further includes a water inlet end cap 13 and a water outlet end cap 14, the water inlet end cap 13 is disposed at one end of the first housing 11 and the second housing 12 near the water inlet pipe 21, the water outlet end cap 14 is disposed at one end of the first housing 11 and the second housing 12 near the water outlet pipe 22, the water outlet end cap 14 is covered outside the mounting portion 4, and the communication hole 10 is disposed on the water outlet end cap 14, so that when the NTC temperature sensor 3 is mounted in the mounting portion 4, the limiting portion 32 is clamped in the communication hole 10.

In this embodiment, the water outlet end cover 14 and the water inlet end cover 13 are configured to protect the water outlet pipe 22 and the water inlet pipe 21, and the water outlet end cover 14 is covered on the outside of the mounting portion 4, and one end of the NTC temperature sensor 3, far away from the probe 33, penetrates through the water outlet end cover 14 and extends to the outside of the water outlet end cover 14, where the water outlet end cover 14 in this structure also has a protection effect on the mounting portion 4 and the NTC temperature sensor 3.

Referring to fig. 4 to 5, preferably, the housing 1 further includes a first protection pipe 15, the first protection pipe 15 is fixedly disposed on a side of the communication hole 10 away from the mounting through groove 23, and the external connection portion 31 of the NTC temperature sensor 3 is located in the first protection pipe 15 and extends from the inside of the first protection pipe 15 to the outside of the water outlet cap 14.

In this embodiment, the end of the NTC temperature sensor 3 away from the probe 33 extends into the first protection tube 15 from the communication hole 10 and extends from the first protection tube 15 to the outside of the water outlet end cap 14, where the first protection tube 15 is sleeved on the outside of the NTC temperature sensor 3, and has a protection function on the NTC temperature sensor 3 on one hand, and on the other hand, can prevent the NTC temperature sensor 3 from being knocked off under the action of external force, thereby being beneficial to improving the service life of the device.

Referring to fig. 5, preferably, the housing 1 further includes a second protection tube 17, the water outlet end cover 14 is provided with a water outlet through hole 16 coaxial with the water outlet tube 22, the diameter of the water outlet through hole 16 is matched with that of the water outlet tube 22, the second protection tube 17 is fixedly disposed on one side of the water outlet through hole 16 away from the heating tube 2, and the water outlet tube 22 extends into the second protection tube 17 from the water outlet through hole 16 and extends to the outside of the water outlet end cover 14 from the second protection tube 17.

In this embodiment, the water outlet pipe 22 extends into the second protection pipe 17 from the water outlet through hole 16 and extends from the second protection pipe 17 to the outside of the water outlet end cap 14, where the second protection pipe 17 is sleeved on the outside of the water outlet pipe 22, so as to protect the water outlet pipe 22, and on the other hand, prevent the water outlet pipe 22 from being broken under the action of external force, thereby being beneficial to improving the service life of the device.

Referring to fig. 5, preferably, the side walls of the water outlet end cover 14 and the water inlet end cover 13 facing the heating pipe 2 are provided with connecting portions 18, the connecting portions 18 are disposed along the edges of the water inlet end cover 13 and the water outlet end cover 14, and when the water outlet end cover 14 and the water inlet end cover 13 are mounted at two ends of the mounting cavity, the connecting portions 18 of the water outlet end cover 14 and the connecting portions 18 of the water inlet end cover 13 are respectively inserted into two ends of the mounting cavity.

Specifically, the water inlet end cover 13 and the water outlet end cover 14 are mounted to both ends of the first housing 11 and the second housing 12 integrally by screws.

In this embodiment, the arrangement of the connection portion 18 is beneficial to increasing the contact area of the water inlet end cover 13 with the whole of the first housing 11 and the second housing 12, and the contact area of the water outlet end cover 14 with the whole of the first housing 11 and the whole of the second housing 12, when the water inlet end cover 13 and the water outlet end cover 14 are installed, the connection portion 18 can be inserted into two ends of the installation cavity first, then the connection portion 18 is fixed by using screws, and the arrangement of the connection portion 18 provides convenience for the installation of the water inlet end cover 13 and the water outlet end cover 14.

Referring to fig. 3, preferably, the heating body further includes a first temperature controller 5 and a second temperature controller 6, two through holes are provided on the first housing 11 and/or the second housing 12, and the first temperature controller 5 and the second temperature controller 6 are respectively installed at the two through holes, so that the first temperature controller 5 and the second temperature controller 6 are disposed outside the heating pipe 2.

Specifically, the first thermostat 5 and the second thermostat 6 are mounted to the first housing 11 and/or the second housing 12 by means of connection screws.

In this embodiment, the first temperature controller 5 and the second temperature controller 6 are mounted on the housing 1 by the connecting screws, and the structure is simple, and the mounting and the dismounting are convenient.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The heating body is characterized by comprising a shell (1), a heating pipe (2), an NTC temperature sensor (3) and a mounting part (4), wherein the shell (1) is mounted outside the heating pipe (2), the NTC temperature sensor (3) comprises an external connection part (31), a limiting part (32) and a probe (33), the limiting part (32) is arranged between the external connection part (31) and the probe (33), and the diameter of the limiting part (32) is larger than the diameter of the external connection part (31) and the diameter of the probe (33);

the two ends of the heating pipe (2) are provided with a water inlet pipe (21) and a water outlet pipe (22), one end, close to the water outlet pipe (22), of the heating pipe (2) is provided with a mounting through groove (23), and the mounting part (4) is used for being mounted at the mounting through groove (23) in a sealing manner;

one end of the shell (1) close to the water outlet pipe (22) is provided with a communication hole (10) coaxial with the mounting through groove (23), the diameter of the communication hole (10) is matched with the limiting part (32) of the NTC temperature sensor (3), and the limiting part (32) is used for being clamped in the communication hole (10);

the probe (33) of the NTC temperature sensor (3) protrudes through the mounting (4) into the interior of the heating tube (2); the external connection (31) of the NTC temperature sensor (3) is located outside the housing (1).

2. A heating body according to claim 1, characterized in that the mounting through-slot (23) comprises a first through-slot (24), the first through-slot (24) being arranged on the heating tube (2) on the side close to the interior of the heating tube (2);

the mounting part (4) comprises a sealing tube (41), the sealing tube (41) is mounted at the first through groove (24), the inner diameter of the sealing tube (41) is matched with the probe (33) of the NTC temperature sensor (3), and the outer diameter of the sealing tube (41) is matched with the first through groove (24).

3. A heating body according to claim 2, wherein said mounting through-slot (23) further comprises a second through-slot (25) provided on said heating tube (2), said second through-slot (25) being provided coaxially with said first through-slot (24) and said second through-slot (25) being provided on a side of said first through-slot (24) remote from the interior of said heating tube (2);

the installation department (4) still include with sealing ring (42) that sealing tube (41) are connected, sealing ring (42) the internal diameter with sealing tube (41) the internal diameter is unanimous, sealing ring (42) external diameter is greater than sealing tube (41) external diameter, sealing ring (42) are used for install in inside second through groove (25).

4. Heating body according to claim 1, characterized in that said housing (1) comprises a first housing (11) and a second housing (12), said first housing (11) and said second housing (12) being welded together, said first housing (11) and said second housing (12) enclosing a mounting cavity, said heating tube (2) being intended to be mounted inside said mounting cavity.

5. A heating body according to claim 4, wherein the housing (1) further comprises a water inlet end cap (13) and a water outlet end cap (14), the water inlet end cap (13) is provided at one end of the first housing (11) and the second housing (12) close to the water inlet pipe (21), the water outlet end cap (14) is provided at one end of the first housing (11) and the second housing (12) close to the water outlet pipe (22), and the communication hole (10) is provided on the water outlet end cap (14).

6. Heating body according to claim 5, wherein the housing (1) further comprises a first protection tube (15), the first protection tube (15) being fixedly arranged at a side of the communication hole (10) remote from the mounting through groove (23), the external connection (31) of the NTC temperature sensor (3) being located in the first protection tube (15) and extending from within the first protection tube (15) to the outside of the water outlet end cap (14).

7. Heating body according to claim 5, wherein the housing (1) further comprises a second protective tube (17), the outlet end cap (14) is provided with an outlet through hole (16) coaxial with the outlet tube (22), the diameter of the outlet through hole (16) is matched with that of the outlet tube (22), the second protective tube (17) is fixedly arranged at one side of the outlet through hole (16) away from the heating tube (2), and the outlet tube (22) extends from the outlet through hole (16) into the second protective tube (17) and from the inside of the second protective tube (17) to the outside of the outlet end cap (14).

8. Heating body according to claim 5, characterized in that the water outlet end cap (14) and the water inlet end cap (13) are provided with connecting parts (18) on the side wall facing one side of the heating tube (2), the connecting parts (18) are arranged along the edges of the water inlet end cap (13) and the water outlet end cap (14), and when the water outlet end cap (14) and the water inlet end cap (13) are mounted at the two ends of the mounting cavity, the connecting parts (18) of the water outlet end cap (14) and the connecting parts (18) of the water inlet end cap (13) are respectively inserted into the two ends of the mounting cavity.

9. Heating body according to claim 4, further comprising a first thermostat (5) and a second thermostat (6), wherein two through holes are provided in the first housing (11) and/or in the second housing (12), and wherein the first thermostat (5) and the second thermostat (6) are mounted at the two through holes, respectively, such that the first thermostat (5) and the second thermostat (6) are arranged outside the heating tube (2).

10. A heating body according to claim 3, wherein the sealing tube (41) and the sealing ring (42) of the mounting portion (4) are both of silicone material.