CN216960221U

CN216960221U - Temperature-controllable electric heating tube

Info

Publication number: CN216960221U
Application number: CN202220753083.1U
Authority: CN
Inventors: 范宇荣; 范宇红
Original assignee: Shenzhen Xinhongda Electrothermal Technology Co ltd
Current assignee: Shenzhen Xinhongda Electrothermal Technology Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-12
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to a temperature-adjustable electric heating pipe, belonging to the technical field of electric heating pipes, which comprises a connecting seat, wherein the end surface of the connecting seat is vertically provided with an outer heat conductor, the side surface of the outer heat conductor along the width direction is provided with a mounting hole in a penetrating way, the mounting hole is provided with a plurality of groups along the length direction of the outer heat conductor in an array way, each group of mounting hole is internally provided with a group of electric heating rods, the two side surfaces of the outer heat conductor along the width direction are provided with a sealing cover in a matching way, the side surface of the sealing cover, which is in contact with the outer heat conductor, is provided with a wiring groove, the connecting seat is internally provided with a wiring hole communicated with the wiring groove, the connecting seat is also provided with a blocking assembly, the blocking assembly comprises a blocking sleeve and a sliding sleeve, the sliding sleeve is sleeved outside the outer heat conductor in a sliding way, the blocking sleeve is of a corrugated pipe structure, one end of the blocking sleeve is connected with the connecting seat, the other end surface of the connecting seat is provided with an electromagnet positioned in the blocking sleeve, one side of the sliding sleeve facing the connecting seat is provided with a magnet.

Description

Temperature-controllable electric heating tube

Technical Field

The utility model relates to the technical field of electric heating, in particular to the technical field of electric heating pipes, and particularly relates to a temperature-adjustable electric heating pipe.

Background

Along with the continuous development of intelligent household appliances, an intelligent electric kettle, an intelligent water diversion machine and the like are applied, the intelligent electric kettle, the intelligent water diversion machine and the like heat water by using an electric heating technology, after the water is boiled, the temperature of the water is kept at the heat preservation temperature through the heat preservation temperature set by a user, in the prior art, the heat preservation of the water is generally realized by two modes, one mode is that the magnitude of current or voltage is changed according to the heat preservation temperature set by the user, so that the heat generated by an electric heating element is reduced, the mode of changing the magnitude of voltage and current received by the electric heating element can reduce the service life of the electric heating element, the other mode is that a temperature control circuit is arranged in the kettle, when the temperature of the water in a probe induction kettle is lower than the preset temperature, the electric heating element is started, when the temperature of the water in the probe induction kettle is higher than the preset temperature, the electric heating element is closed, and the mode of continuously starting and closing not only can reduce the service life of the electric heating element, and the energy consumption is great, in addition, constantly carries out intermittent type formula heating to water, and the mineral substance in the water can receive the influence, and quality of water can harden, influences and drinks.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems mentioned in the background, the present invention provides an electric heating tube capable of regulating temperature.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows.

A temperature-controllable electric heating pipe comprises a connecting seat, wherein an outer heat conductor is vertically arranged on the end surface of the connecting seat, a plurality of groups of electric heating rods are arranged in the outer heat conductor, the electric heating rods are arranged in parallel, each group of branch circuits of a parallel circuit are respectively provided with a branch switch, and a main circuit of the parallel circuit is provided with a main switch;

still be provided with the separation subassembly on the connecting seat, the separation subassembly is used for when the electric heating rod stops the operation, and the contact between the isolated outer conductor corresponding part and the water.

Furthermore, mounting holes penetrate through the side surface of the outer heat conductor along the width direction, a plurality of groups of mounting holes are arranged in an array along the length direction of the outer heat conductor, and a group of electric heating rods are mounted in each group of mounting holes;

the sealing cover is installed along width direction's both sides face matching to outer heat conductor, and the side of sealing cover and outer heat conductor contact is provided with the wiring groove, is provided with the wiring hole with wiring groove intercommunication in the connecting seat, and the wiring hole is used for dodging the wiring of electric heating rod's parallel circuit with the wiring groove cooperation.

Furthermore, the outer heat conductor is also provided with a pressure sensor.

Furthermore, the blocking assembly comprises a blocking sleeve and a sliding sleeve, and the sliding sleeve is sleeved outside the outer heat conductor in a sliding manner;

the isolating sleeve is of a corrugated pipe structure, one end of the isolating sleeve is connected with the connecting seat, and the other end of the isolating sleeve is connected with the sliding sleeve;

the end surface of the connecting seat is provided with an electromagnet which is positioned in the blocking sleeve;

one side of the sliding sleeve facing the connecting seat is provided with a magnet which is positioned in the separation sleeve.

Furthermore, the surface of separation cover has still seted up the heat conduction hole, and it has the conducting strip to inlay in the heat conduction hole.

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

1. in the scheme, heat is conducted to water through the outer heat conductor, so that heat generated by the operation of the electric heating rod is conducted to the outer heat conductor no matter in the process of boiling water or in the process of keeping the temperature of the boiling water, the heat is uniformly distributed on the outer heat conductor and is conducted to the water;

compare prior art, in this scheme, the voltage and current size that the electrical heating stick received is invariable, during the heat preservation, need not change voltage or electric current size, perhaps through temperature control circuit control electrical heating stick intermittent type operation, in addition, water can not receive intermittent type formula heating, and the mineral substance in the water is not influenced.

2. The separation subassembly in this scheme, on the one hand, reduces the production of incrustation scale, and on the other hand, regular clearance incrustation scale, both cooperations make the heat-conduction process of outer heat conductor not influenced by the incrustation scale.

Drawings

FIG. 1 is a schematic view of the construction of the present invention after the barrier sleeve has been retracted;

FIG. 2 is a schematic view of the construction of the present invention after the barrier sleeve has been elongated;

FIG. 3 is a schematic structural view of the connecting seat and the outer heat conductor;

FIG. 4 is an exploded view of the outer heat conductor, the cover and the electrical heating rod;

FIG. 5 is an exploded view of the blocking sleeve and sliding sleeve;

fig. 6 is a partial cross-sectional view of a barrier sleeve.

The reference numbers in the drawings are:

1. a connecting seat; 2. an outer heat conductor; 3. mounting holes; 4. sealing the cover; 5. a wiring slot; 6. an electrical heating rod; 7. a barrier sleeve; 8. a sliding sleeve; 9. an electromagnet; 10. a magnet; 11. a heat conductive sheet.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1-6, an electric heating tube with adjustable temperature comprises a connecting base 1, an outer heat conductor 2 is vertically disposed on an end surface of the connecting base 1, a plurality of groups of electric heating rods 6 are disposed in the outer heat conductor 2, and the electric heating rods 6 are arranged in parallel.

Specifically, as shown in fig. 4, the outer heat conductor 2 is provided with mounting holes 3 penetrating through the side surface in the width direction, the mounting holes 3 are provided with a plurality of groups in an array along the length direction of the outer heat conductor 2, and a group of electric heating rods 6 is installed in each group of mounting holes 3.

Outer heat conductor 2 matches along width direction's both sides face and installs closing cap 4, and the side of closing cap 4 and the contact of outer heat conductor 2 is provided with wiring groove 5, is provided with the wiring hole that communicates with wiring groove 5 in the connecting seat 1, and the wiring hole is used for dodging the wiring of the parallel circuit of electrical heating rod 6 with the cooperation of wiring groove 5, and every group branch road of parallel circuit all is provided with branch switch, and parallel circuit's trunk circuit is provided with master switch.

The outer heat conductor 2 is made of a heat conductive material, such as a copper material, or the like.

Still be provided with pressure sensor on the outer heat conductor 2, when injecting water in the kettle, water can produce pressure to outer heat conductor 2, and this pressure is detected by pressure sensor, and the water yield of injecting into in the kettle is judged to the pressure size that detects through pressure sensor.

When boiling water, the main switch and each group of branch switches are closed, each group of electric heating rods 6 starts to heat and run, the generated heat is conducted to the outer heat conductor 2, and water is conducted through the outer heat conductor 2.

In the heat preservation process after the water is boiled, according to the heat preservation temperature set by a user, the water quantity in the kettle is judged according to the pressure sensor, so that the preset number of branch switches are switched off, the rest branch switches are kept closed, and the corresponding electric heating rods 6 operate to preserve the heat of the water.

In this scheme, because the heat is through outer heat conductor 2 conduction feedwater, so no matter the in-process of boiling water, still the heat that boiling water heat preservation in-process, the heat that the operation of electrical heating stick 6 produced all can conduct for outer heat conductor 2, evenly distributed on outer heat conductor 2 conducts the feedwater, and in addition, outer heat conductor 2's setting has still increased the area of contact with water, has improved the efficiency of conducting the heat to water.

Compared with the prior art, in the scheme, the voltage and the current of the electric heating rod 6 are constant, and the voltage or the current does not need to be changed during heat preservation, or the electric heating rod 6 is controlled to run intermittently through the temperature control circuit.

The preferred embodiment, after a long time of use, the electric heating element, in this case, is referred to as the outer heat conductor 2, and there is scale on the outside of the outer heat conductor, which affects heat conduction and thus adversely affects boiling or heat preservation of water.

Therefore, as shown in fig. 1 and 2, the connecting base 1 is further provided with a blocking assembly, the blocking assembly is used for periodically removing scale on the outer surface of the outer heat conductor 2, and when the electric heating rod 6 stops operating, the blocking assembly blocks the contact between the corresponding part of the outer heat conductor 2 and water, so that the generation of scale is reduced.

Specifically, as shown in fig. 3 and 5, the blocking assembly includes a blocking sleeve 7 and a sliding sleeve 8.

Wherein, the sliding sleeve 8 is slidably sleeved outside the outer heat conductor 2.

The separation sleeve 7 is of a corrugated pipe structure, one end of the separation sleeve 7 is connected with the connecting seat 1, and the other end of the separation sleeve is connected with the sliding sleeve 8.

An electromagnet 9 is arranged on the end face of the connecting seat 1, and the electromagnet 9 is positioned in the blocking sleeve 7.

One side of the sliding sleeve 8 facing the connecting seat 1 is provided with a magnet 10, and the magnet 10 is positioned in the blocking sleeve 7.

As shown in fig. 6, the outer surface of the blocking sleeve 7 is further provided with heat conducting holes, and heat conducting fins 11 are embedded in the heat conducting holes.

When water is boiled, the electromagnet 9 operates at the maximum power to generate the magnetic attraction of the attraction magnet 10, so that the sliding sleeve 8 slides close to the connecting seat 1, the separation sleeve 7 contracts, and at the moment, the outer surface of the outer heat conductor 2 is in contact with the water, and the heating process of the water is not influenced;

in the hot water heat preservation process, according to the temperature set by a user and the water quantity in the kettle, the electromagnet 9 operates at preset power to generate magnetic repulsion force repelling the magnet 10, so that the sliding sleeve 8 slides away from the connecting seat 1, the blocking sleeve 7 is stretched, and the part of the outer heat conductor 2 corresponding to the non-operating electric heating rod 6 is blocked by the blocking sleeve 7 and contacts with water.

In the process, the part of the outer heat conductor 2 corresponding to the non-operating electric heating rod 6 and water are separated by the separation sleeve 7, so that the generation of scale on the outer heat conductor 2 is reduced;

in the process, due to the pressure of water, the separation sleeve 7 is pressed to be tightly attached to the outer heat conductor 2, and at the moment, the heat conducting fins 11 can realize heat conduction between the part of the outer heat conductor 2 separated by the separation sleeve 7 and water, so that the heat conduction process is not influenced;

in the process, the sliding sleeve 8 can scrape scale on the outer surface of the external heat conductor 2 every time of moving.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A temperature-adjustable electric heating pipe comprises a connecting seat (1), and is characterized in that an outer heat conductor (2) is vertically arranged on the end face of the connecting seat (1), a plurality of groups of electric heating rods (6) are arranged in the outer heat conductor (2), the electric heating rods (6) are arranged in parallel, each group of branch circuits of a parallel circuit are respectively provided with a branch switch, and a main circuit of the parallel circuit is provided with a main switch;

still be provided with the separation subassembly on connecting seat (1), the separation subassembly is used for when electric heating rod (6) stop operation, and the contact between isolated outer conductor (2) corresponding part and the water.

2. The temperature-controllable electric heating pipe according to claim 1, characterized in that the outer heat conductor (2) is provided with mounting holes (3) through the side along the width direction, the mounting holes (3) are arranged in a plurality of groups along the length direction of the outer heat conductor (2), and each group of mounting holes (3) is provided with a group of electric heating rods (6);

the sealing cover (4) is installed along the two side faces of the width direction in a matched mode on the outer heat conductor (2), the wiring groove (5) is formed in the side face, in contact with the outer heat conductor (2), of the sealing cover (4), the wiring hole communicated with the wiring groove (5) is formed in the connecting seat (1), and the wiring hole and the wiring groove (5) are matched to avoid wiring of a parallel circuit of the electric heating rod (6).

3. A temperature controllable electric heating tube according to claim 2, characterized in that the outer heat conductor (2) is further provided with a pressure sensor.

4. The temperature-controllable electric heating tube according to claim 1, wherein the blocking assembly comprises a blocking sleeve (7) and a sliding sleeve (8), the sliding sleeve (8) is slidably sleeved outside the outer heat conductor (2);

the isolating sleeve (7) is of a corrugated pipe structure, one end of the isolating sleeve (7) is connected with the connecting seat (1), and the other end of the isolating sleeve is connected with the sliding sleeve (8);

an electromagnet (9) is arranged on the end face of the connecting seat (1), and the electromagnet (9) is positioned in the blocking sleeve (7);

one side of the sliding sleeve (8) facing the connecting seat (1) is provided with a magnet (10), and the magnet (10) is positioned in the separation sleeve (7).

5. The temperature-controllable electric heating pipe according to claim 4, characterized in that the outer surface of the spacer sleeve (7) is further provided with heat conducting holes, and heat conducting fins (11) are embedded in the heat conducting holes.