CN213273196U

CN213273196U - Heating device

Info

Publication number: CN213273196U
Application number: CN202021869838.1U
Authority: CN
Inventors: 张中修; 赵浩
Original assignee: Shanghai Jilong Sports Leisure Products Co ltd
Current assignee: Shanghai Jilong Sports Leisure Products Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-25
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a heater, its characterized in that: including casing and heating element, heating element establishes in the casing, be equipped with inlet and liquid outlet on the casing, heating element includes heat conductor and heating core, the heating core establish in the heat conductor with the inner wall laminating of heat conductor, form between the inner wall of casing and the heat conductor and be used for holding the heating chamber of liquid and heating, heating element's front end and rear end have at least one end to locate the heating chamber outside. The utility model discloses a with the part setting of the front and back end joint of heating core and heat conductor in the outside in heating chamber, the tip of heating core is in the work of heating chamber outside, has avoided the electric leakage risk that the joint position of heating core and heat conductor and the liquid contact in the heating chamber damaged and cause in the heating process, has prolonged the life of heater. An outer ring water flow heating system is formed, and the heating speed can be increased on the basis of the original power, so that resources are saved.

Description

Heating device

Technical Field

The utility model relates to a heater belongs to liquid heating technical field.

Background

At present, PTC (Positive Temperature Coefficient) liquid heaters are widely used in SPA pools, recreational pools, drinking water dispensers, foot baths and other household appliances and other industrial products. In the prior art, there is a common PTC assembly heater comprising a heat conductor and a PTC heating element. The existing heater generally installs the PTC component in the metal pipeline, and the joint of the heat conductor and the PTC heating element has the risk of electric leakage after long-term use.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the current PTC subassembly heater has electric leakage risk in the working process joint department.

In order to solve the above problem, the technical scheme of the utility model is to provide a heater, its characterized in that: including casing and heating element, heating element establishes in the casing, be equipped with inlet and liquid outlet on the casing, heating element includes heat conductor and heating core, the heating core establish in the heat conductor with the inner wall laminating of heat conductor, form between the inner wall of casing and the heat conductor and be used for holding the heating chamber of liquid and heating, heating element's front end and rear end have at least one end to locate the heating chamber outside.

Preferably, the housing comprises a housing, a front cover and a rear cover, the front cover and the rear cover are respectively arranged at the front end and the rear end of the housing to form a heating cavity with the housing and the heat conductor.

Preferably, the front end of the heat conductor is provided with a limiting sheet which radially protrudes out of the heat conductor, the front end of the heat conductor is fixedly connected with the shell through the limiting sheet, and the front cover is arranged on the front end of the heating core; the rear cover is provided with a first through hole, the rear end of the heat conductor is fixedly connected with the rear cover, and the rear end face of the heat conductor is exposed in the first through hole.

Preferably, the rear cover is an annular cavity with one closed end, a first through hole is formed in the annular cavity in a hollow mode, a step is arranged at one end, connected with the shell, of the annular cavity, a sealing cap is sleeved at the rear end of the heat conductor, a second through hole is formed in the top of the sealing cap, the step is matched with the sealing cap to fixedly connect the rear end of the heat conductor with the rear cover, and the rear end face of the heat conductor is exposed in the first through hole and the second through hole.

Preferably, the heat conductor is of a cylindrical structure, more than two heating cores are oppositely arranged in the cylindrical structure, and an adjusting component for adjusting the bonding strength between the heating cores and the inner wall of the heat conductor is arranged between the heating cores.

Preferably, the adjusting part is a wave spring, a clamping groove is formed in the surface, opposite to each heating core, of each heating core, and the wave spring is arranged in the clamping groove to form a support.

Preferably, the housing and the heat conductor are integrally formed, the housing and the heat conductor are made of metal materials, the heating core penetrates through the heat conductor, the front end of the heating core is arranged outside the front cover, and the rear end of the heating core is arranged outside the rear end.

Preferably, the heating chamber is for establishing a plurality of liquid circulation pipelines about the heat conductor, the protecgulum with back cover be equipped with a plurality of liquid circulation pipeline complex pipeline covers, the protecgulum with back cover the position that corresponds with the heat conductor and be equipped with the opening, both ends pass the opening and are located between a plurality of pipeline covers that distribute from top to bottom around the heating core, do not communicate with each other between opening and the pipeline cover.

Preferably, the heating chamber is provided with a temperature sensor for detecting the temperature of the water.

Preferably, the heating chamber is provided with a water pressure switch for preventing dry burning.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a with the part setting of the front and back end joint of heating core and heat conductor in the outside in heating chamber, the tip of heating core is in the work of heating chamber outside, has avoided the electric leakage risk that the joint position of heating core and heat conductor and the liquid contact in the heating chamber damaged and cause in the heating process, has prolonged the life of heater. The cylindrical heat conductor or the heating pipelines distributed above and below the heat conductor are adopted to form an outer ring water flow heating system, so that the contact surface of the heat conductor and liquid is larger, the heating is more sufficient, and the heating speed can be increased on the basis of the original power, and the resources are saved.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment;

FIG. 2 is a schematic structural diagram of the second embodiment;

FIG. 3 is an exploded view of the structure of the third embodiment;

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1, the utility model relates to a heater, including casing and heating element, heating element installs inside the casing, processing inlet 1 and liquid outlet 2 on the casing, and heating element includes heat conductor 3 and heating core 4, and heating core 4 adopts PTC resistance heating core, installs in heat conductor 3 with the inner wall laminating of heat conductor 3, forms the annular heating chamber that is used for holding liquid and heating between the inner wall of casing and the heat conductor 3, and heating element's front end and rear end have at least one end to be located the heating chamber outside.

The shell can be made of plastic, stainless steel, copper or aluminum alloy and the like, and comprises a shell 5, a front cover 6 and a rear cover 7, wherein the front cover 6 and the rear cover 7 are respectively arranged at the front end and the rear end of the shell 5. Liquid inlet 1 is located protecgulum 6, and liquid outlet 2 is located back and covers 7, and heat conductor 3 installs inside shell 5, forms the heating chamber between protecgulum 6, back lid 7, heat conductor 3 and the shell 5. A temperature sensor 12 and a water pressure switch 13 are arranged at the liquid inlet 1 and used for detecting water temperature and preventing dry burning.

The front end processing of heat conductor 3 is radial protrusion in the spacing piece 31 of heat conductor 3, processing screw hole on the spacing piece 31, and spacing piece 31 passes through fasteners such as screws with shell 5 and is connected with the front end of shell 5 to be connected the front end of heat conductor 3 and shell 5 fixedly, with the front end card of heat conductor 3 in the outside in heating chamber, the sealed packing ring 14 of usefulness of installation between the front end of heat conductor 3 and shell 5. The front cover 6 is circular and is installed on the front end of the heating core 4, and a hole for passing a lead wire of the heating core 4 is processed on the front cover 6. The rear cover 7 is an annular cavity with one closed end, a first through hole 71 is formed in the annular cavity, and steps 72 are machined on the inner ring and the outer ring at one end, connected with the shell 5, of the annular cavity. The rear end of the heat conductor 3 is sleeved with a sealing cap 8, a second through hole is formed in the top of the sealing cap 8, the step 72 on the inner ring and the outer ring of the annular cavity is matched with the sealing cap 8 and the rear end of the shell 5 respectively to connect and fix the rear end of the heat conductor 3 with the rear cover 7, and the rear end face of the heat conductor 3 is exposed in the first through hole 71 and the second through hole.

The heat conductor 3 is of a cylindrical structure, the number of the heating cores 4 is two, the heating cores are semi-cylindrical, the two heating cores 4 are oppositely arranged in the cylindrical structure, the semi-cylindrical arc surface is coated with heat conducting glue, and the semi-cylindrical arc surface is attached to the inner wall of the heat conductor 3. An adjusting component for adjusting the joint strength of the heating core 4 and the inner wall of the heat conductor 3 is arranged between the two heating cores 4. Adjusting part is wave spring in this embodiment, and vertical processing has draw-in groove 41 on two faces that heat core 4 is relative, and wave spring card forms the support in draw-in groove 41, thereby strengthens the laminating intensity of heating

core

4 and 3 inner walls of heat conductor through the compression wave spring for the heat transfer surface is bigger, and liquid flows in through liquid outlet 2 after heating the chamber heating via inlet 1.

Example two

As shown in fig. 2, the through hole 71 of the rear cover 7 is closed in the first embodiment, the rear end of the heat conductor 3 is located inside the heating chamber, the front end of the heat conductor 3 is located outside the heating chamber, and the rest is the same as the first embodiment.

EXAMPLE III

As shown in fig. 2, in the present embodiment, the housing 5 and the heat conductor 3 are made of metal material, such as stainless steel, copper or aluminum alloy, and are designed to be a rectangular parallelepiped shape by integral molding, the heat conductor 3 has two rectangular parallelepiped cavities, four liquid flow channels 9 are formed between the housing 5 and the heat conductor 3 and distributed above and below the heat conductor 3, the heating core 4 is rectangular parallelepiped, and the heating core 4 penetrates through the heat conductor 3 and is installed in the heat conductor 3. The front cover 6 and the rear cover 7 are respectively arranged at two ends of the shell 5, the pipeline covers 10 matched with the liquid circulation pipeline 9 are processed at the positions corresponding to the liquid circulation pipeline 9 on the front cover 6 and the rear cover 7, the openings 11 are processed at the positions corresponding to the heat conductor 3, the front end and the rear end of the heating core 4 penetrate through the openings 11 to be positioned between the pipeline covers 10 which are distributed up and down, the front end and the rear end are exposed outside the liquid circulation pipeline 9 for heating, and the openings 11 and the pipeline covers 10 are not communicated with each other.

The liquid inlet 1 and the liquid outlet 2 are respectively arranged on the upper surface and the lower surface of the rear cover 7, the water pressure switch 13 is arranged on the rear cover 7, and the temperature sensor 12 is arranged on the front cover 6.

Example four

The opening 11 on the front cover 6 or the back cover 7 in the third embodiment is closed, the front end or the back end of the heating core 4 is arranged in the heating cavity, and the rest is the same as the third embodiment.

Claims

1. A heater, characterized by: including casing and heating element, heating element establishes in the casing, be equipped with inlet (1) and liquid outlet (2) on the casing, heating element includes heat conductor (3) and heating core (4), heating core (4) are established in heat conductor (3) and are laminated with the inner wall of heat conductor (3), form the heating chamber that is used for holding liquid and heating between the inner wall of casing and heat conductor (3), heating element's front end and rear end have one end at least to locate the heating chamber outside.

2. A heater as claimed in claim 1, wherein: the casing includes shell (5), protecgulum (6) and hou gai (7) are established respectively and are formed the heating chamber with shell (5) and heat conductor (3) in the front and back end of shell (5).

3. A heater as claimed in claim 2, wherein: the front end of the heat conductor (3) is provided with a limiting sheet (31) which radially protrudes out of the heat conductor (3), the front end of the heat conductor (3) is fixedly connected with the shell (5) through the limiting sheet (31), and the front cover (6) is arranged at the front end of the heating core (4); the rear cover (7) is provided with a first through hole (71), the rear end of the heat conductor (3) is fixedly connected with the rear cover (7), and the rear end face of the heat conductor (3) is exposed in the first through hole (71).

4. A heater as claimed in claim 3, wherein: the rear cover (7) is an annular cavity with one closed end, a first through hole (71) is formed in the annular cavity, a step (72) is arranged at one end, connected with the shell (5), of the annular cavity, a sealing cap (8) is sleeved at the rear end of the heat conductor (3), a second through hole is formed in the top of the sealing cap (8), the step (72) is matched with the sealing cap (8) to fixedly connect the rear end of the heat conductor (3) with the rear cover (7), and the rear end face of the heat conductor (3) is exposed in the first through hole (71) and the second through hole.

5. A heater as claimed in claim 4, wherein: the heat conductor (3) is of a cylindrical structure, more than two heating cores (4) are oppositely arranged in the cylindrical structure, and an adjusting part used for adjusting the bonding strength of the heating cores (4) and the inner wall of the heat conductor (3) is arranged between the heating cores (4).

6. A heater as claimed in claim 5, wherein: the adjusting part is a wave spring, a clamping groove (41) is formed in the surface, opposite to the heating core (4), of each heating core, and the wave spring is arranged in the clamping groove (41) to form support.

7. A heater as claimed in claim 2, wherein: the shell (5) and the heat conductor (3) are integrally formed, the shell (5) and the heat conductor (3) are made of metal materials, the heating core (4) penetrates through the heat conductor (3), the front end of the heating core (4) is arranged outside the front cover (6), and the rear end of the heating core (4) is arranged outside the rear end.

8. A heater as claimed in claim 7, wherein: the heating chamber is for establishing a plurality of liquid circulation pipeline (9) about heat conductor (3), be equipped with on protecgulum (6) and back lid (7) a plurality of with a plurality of liquid circulation pipeline (9) complex pipe cover (10), the position that corresponds with heat conductor (3) is equipped with opening (11) on protecgulum (6) and back lid (7), both ends pass opening (11) around heating core (4) and are located between a plurality of pipe cover (10) that distribute from top to bottom, each other does not communicate with each other between opening (11) and pipe cover (10).

9. A heater as claimed in any one of claims 1 to 8, wherein: the heating chamber is provided with a temperature sensor (12) for detecting the temperature of the water.

10. A heater as claimed in any one of claims 1 to 8, wherein: the heating cavity is provided with a water pressure switch (13) for preventing dry burning.