CN218884260U - Heating element - Google Patents

Abstract

The utility model discloses a heating element, which comprises a heating pipe and a non-return component, wherein the heating pipe is provided with an inlet and an outlet, a heating channel communicated with the inlet and the outlet is constructed in the heating pipe, and the heating pipe is constructed to be suitable for heating a medium in the heating channel; the check assembly is arranged on the heating pipe and is suitable for unidirectional medium circulation from the inlet to the outlet. According to the utility model discloses heating element has set up the non return subassembly, can make the one-way circulation of medium in the heating element to make heating element have the non return function.

Description

Heating element

Technical Field

The utility model relates to a heating structure technical field especially relates to a heating element.

Background

The heating pipe assembly structure existing in the market is basically a metal straight pipe or a silica gel straight pipe embedded in a heating pipe, so that the heat of the wall of the heating pipe can be effectively conducted to pure water, and the water temperature is increased. And both ends of the heating pipe adopt a water stopping mode of silica gel interference fit.

But the existing structural scheme is relatively bloated, large in size and short of ductility. The water way has no water stop function, and the hidden trouble of pure water backflow exists. The heat conduction efficiency of the water path is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heating element has set up the non return subassembly, can make the one-way circulation of medium in the heating element to make heating element have the non return function.

The heating element comprises a heating pipe and a check assembly, wherein an inlet and an outlet are formed in the heating pipe, a heating channel communicated with the inlet and the outlet is formed in the heating pipe, and the heating pipe is suitable for heating a medium in the heating channel; the check assembly is arranged on the heating pipe and is suitable for unidirectional medium circulation from the inlet to the outlet.

According to the utility model discloses heating element has set up the non return subassembly, can make the one-way circulation of medium in the heating element to make heating element have the non return function.

In addition, the heating element according to the above embodiment of the present invention may also have the following additional technical features:

optionally, the check assembly is integrated within the heating tube.

Optionally, the heating tube includes an outer tube and a mandrel, two ends of the outer tube are respectively connected with a first plug and a second plug, the first plug forms the inlet, and the second plug forms the outlet; the mandrel is arranged in the outer tube and extends along the axial direction of the outer tube, and the heating channel is constructed between the mandrel and the outer tube.

Optionally, the first end of the mandrel is provided with a first passage opposite the inlet and communicating with the heating passage, and the check assembly comprises a first check mechanism configured for one-way communication of the medium from the inlet to the first passage.

Optionally, a first sealing ring is arranged between the peripheral wall of the first passage and the peripheral wall of the inlet, the first check mechanism comprises a first cover plate and a first elastic piece, the first cover plate is movably arranged in the first passage and is suitable for abutting against the first sealing ring to separate the inlet from the first passage; the first elastic piece is arranged between the first cover plate and the mandrel, and the first elastic piece always has a force for pushing the first cover plate to stop against the first sealing ring.

Optionally, the second end of the mandrel is provided with a second channel opposite the outlet and communicating with the heating channel, the check assembly comprising a second check mechanism configured for one-way communication of media from the second channel to the outlet.

Optionally, a second sealing ring is arranged between the peripheral wall of the second passage and the peripheral wall of the outlet, and the second check mechanism comprises a second cover sheet and a second elastic piece, the second cover sheet is movably arranged in the outlet and is suitable for stopping against the second sealing ring to separate the outlet and the second passage; the second elastic element is arranged between the second cover plate and the second plug, and the second elastic element usually has a force for pushing the second cover plate to stop against the second sealing ring.

Optionally, at least one of the first plug and the second plug is screwed, welded, fastened or integrally formed with the outer tube.

Optionally, the heating channel is a spiral channel extending in a circumferential direction and an axial direction of the outer tube.

Optionally, a spiral rib extending along the circumferential direction and the axial direction of the outer tube is arranged on the outer circumferential surface of the mandrel, and a heating channel extending in a spiral manner is formed between the mandrel and the outer tube by the spiral rib.

Optionally, at least one of the outer tube and the mandrel is configured as a heating structure that can heat a medium within the heating channel.

Optionally, the two ends of the mandrel are respectively sleeved on the inner sides of the two ends of the outer tube, the two ends of the mandrel are respectively matched with the shaft holes at the two ends of the outer tube, and third sealing rings are arranged between the two ends of the mandrel and the two ends of the outer tube respectively.

Drawings

Fig. 1 is a schematic view of a heating element according to an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is a partially enlarged schematic view of fig. 1.

Fig. 4 is a schematic view of a second plug of a heating element according to an embodiment of the invention.

Fig. 5 is a schematic view of a heating element and a temperature detector according to an embodiment of the present invention.

Reference numerals:

the heating element 100, the inlet 101, the outlet 102, the heating channel 103, the heating tube 10, the outer tube 11, the first sealing ring 111, the second sealing ring 112, the third sealing ring 113, the core shaft 12, the first channel 121, the second channel 122, the first annular rib 123, the second annular rib 124, the spiral convex rib 125, the support column 126, the first column 126a, the reinforcing rib 126b, the first check mechanism 20a, the first cover plate 21a, the first elastic element 22a, the second check mechanism 20b, the second cover plate 21b, the second elastic element 22b, the first plug 31, the sleeve part 311, the support leg 312, the second plug 32, the support seat 321, the second column 322, and the temperature detector 40.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

As shown in fig. 1 to 3, a heating element 100 according to an embodiment of the present invention includes a heating tube 10 and a check assembly. The heating tube 10 may be used to heat a medium and the non-return assembly may be used to limit the backflow of the heated medium.

Specifically, the heating pipe 10 is provided with an inlet 101 and an outlet 102, a heating channel 103 communicating the inlet 101 and the outlet 102 is configured in the heating pipe 10, a medium can enter the heating channel 103 through the inlet 101 and then be sent out from the outlet 102, and the heating pipe 10 is configured to be suitable for heating the medium in the heating channel 103, and the medium is heated by the heating pipe 10 during the medium passes through the heating channel 103. The check assembly is disposed on the heating pipe 10, and is configured to be suitable for unidirectional medium flowing from the inlet 101 to the outlet 102, that is, the check assembly can limit the medium flowing back during the medium flowing through the medium channel, that is, the medium can flow from the inlet 101 to the outlet 102 in the heating channel 103, and the medium flowing from the outlet 102 to the inlet 101 will be blocked by the check assembly.

According to the utility model discloses heating element 100 has set up the check subassembly, when the medium circulates from import 101 to export 102, the check structure can not obstruct the circulation of medium, perhaps little to the hindrance of medium, and when the medium exists from export 102 to import 101 reverse circulation, the check structure can obstruct the circulation of medium, thereby can make the medium in heating element 100 can be along heating element 100 one-way circulation, avoid because the energy loss that the backward flow of medium caused, heating efficiency and effect are improved.

When the heating element 100 is applied to a water purifier, a water dispenser, or other devices, the medium in the present invention may be a liquid or gaseous medium, such as water.

The utility model provides a non return subassembly has the effect of the medium backward flow in the restriction heating channel 103, and wherein, the non return structure can be connected in the outside of heating pipe 10, also can connect in the inboard of heating pipe 10, as shown in fig. 1 to fig. 3 the utility model discloses an in some embodiments, non return subassembly is integrated in heating pipe 10. By integrating the check assembly in the heating pipe 10, the size of the heating element 100 can be reduced, the integration effect of the heating element 100 is increased, the miniaturization and integration of the heating pipe 10 are facilitated, the installation is facilitated, and the stability and the safety of the operation of the heating element 100 are improved.

Wherein, the non-return component in the utility model can be arranged at the end part in the heating pipe 10; or the check assembly may be disposed in the middle inside the heating tube 10. Of course, the utility model provides a non return subassembly can set up in any position in heating pipe 10, can all improve the integration level through with non return subassembly is integrated in heating pipe 10. In addition, this non return assembly can also be integrated in one or more places in heating pipe 10, as shown in fig. 1 to 3, in some embodiments of the present invention, the two ends of heating pipe 10 are provided with non return assemblies.

Referring to fig. 1, in some embodiments of the present invention, the heating tube 10 includes an outer tube 11 and a mandrel 12, a first plug 31 and a second plug 32 are respectively connected to two ends of the outer tube 11, an inlet 101 is formed on the first plug 31, and an outlet 102 is formed on the second plug 32. The mandrel 12 is disposed in the outer tube 11 and extends along the axial direction of the outer tube 11, and a heating channel 103 is configured between the mandrel 12 and the outer tube 11. When the medium enters the outer tube 11 through the inlet 101, because the mandrel 12 is arranged in the outer tube 11, the medium will flow in the direction close to the outer tube 11, so as to increase the contact area between the medium and the heating tube 10, and no matter the medium is heated by the outer tube 11 or the mandrel 12, the contact area between the medium and the heating element can be effectively increased, so as to improve the heating efficiency and effect. The contact area between the medium and the heating element is increased, the medium can be rapidly heated, the heating efficiency of the medium can be increased, and the instant heating requirement can be met.

Wherein, the both ends of outer tube 11 dock along the axis direction of outer tube 11 with first end cap 31 and second end cap 32 respectively, and the both ends of dabber 12 are equipped with first annular muscle 123 and second annular muscle 124 respectively, be equipped with the first cooperation groove relative with first annular muscle 123 on the first end cap 31, be equipped with the second cooperation groove relative with second annular muscle 124 on the second end cap 32, first annular muscle 123 imbeds into first cooperation inslot, second annular muscle 124 imbeds into second cooperation inslot.

Optionally, in combination with the above, the inlet 101 end of the heating pipe 10 may be provided with a check assembly, which can be opened to allow the medium to flow when the medium is introduced into the inlet 101 at a predetermined pressure, and the one-way flow performance of the check assembly can prevent the medium from flowing back. Specifically, as shown in fig. 1 and 2, the first end of the mandrel 12 is provided with a first passage 121, the first passage 121 is opposite to the inlet 101 and is communicated with the heating passage 103, the check assembly comprises a first check mechanism 20a, and the first check mechanism 20a is configured to be suitable for one-way circulation of the medium from the inlet 101 to the first passage 121. By means of the first non-return means 20a, switching on and off between the first channel 121 and the inlet 101 is possible, in which case, when the first channel 121 and the inlet 101 are switched on, medium can pass from the inlet 101 into the first channel 121 and subsequently into the heating channel 103; while the first check means 20a separates the first passage 121 from the inlet 101, the medium flow can be restricted.

The first non-return mechanism 20a in the present invention can have various forms, such as one-way valve, etc., the first non-return mechanism 20a of some embodiments is provided, but this is not the limitation of the protection scope of the present invention, but the technical solution of the present invention is described for clarity and completeness.

As shown in fig. 2, in some embodiments of the present invention, a first sealing ring 111 is disposed between the peripheral wall of the first passage 121 and the peripheral wall of the inlet 101, and the first check mechanism 20a includes a first cover sheet 21a, the first cover sheet 21a is movably disposed in the first passage 121 and is adapted to abut against the first sealing ring 111 to separate the inlet 101 from the first passage 121, wherein the first cover sheet 21a moves in the first passage 121 and is capable of cooperating with the first sealing ring 111 to separate the inlet 101 from the first passage 121 when moving to abut against the first sealing ring 111, and due to the blocking effect of the first sealing ring 111, the first cover sheet 21a cannot move towards the inlet 101, that is, when the reverse pressure exists in the medium to urge the first cover sheet 21a to move towards the inlet 101, the first sealing ring 111 can provide a block to the first cover sheet 21a, and the larger the reverse pressure makes the first cover sheet and the first sealing ring 111 to be attached more tightly to realize the check effect; when the medium is pressurized from the inlet 101 to the first passage 121, the pressure can urge the first cover sheet 21a to move toward the first passage 121, so that the first cover sheet 21a is away from the first sealing ring 111, thereby separating the first sealing ring 111 from the first cover sheet 21a and communicating the first passage 121 with the inlet 101 to facilitate the medium circulation.

In addition, as shown in fig. 2, the first check mechanism 20a may further include a first elastic element 22a, the first elastic element 22a is disposed between the first cover sheet 21a and the core shaft 12, and the first elastic element 22a usually has a force pushing the first cover sheet 21a against the first sealing ring 111. The first elastic member 22a can provide pre-pressure for the first cover sheet 21a, so that the first cover sheet 21a can be maintained in a state of separating the first channel 121 and the inlet 101, and due to the arrangement of the first elastic member 22a, the medium that can enter the heating channel 103 can have a certain pressure to promote the fluid to flow, thereby ensuring smooth flow of the medium, simultaneously counteracting pressure loss of the medium in the flow process, optimizing heating efficiency, and facilitating the next processing of the medium.

The moving direction of the first cover sheet 21a in the first channel 121 may be the axial direction of the spindle 12, and the first elastic element 22a may be a spring, or an elastic element with the same function. Specifically, when the medium enters the inlet 101 through the first plug 31, a pushing force is generated on the first cover sheet 21a, so that the first elastic member 22a is compressed, and thus the inlet 101 is communicated with the first channel 121, and the medium can enter the first channel 121. When the medium flows along the direction from the heating channel 103 to the first channel 121, the medium pushing force applied to the first cover sheet 21a is the same as the force direction of the first elastic member 22a on the first cover sheet 21a, so that the force of the first cover sheet 21a against the first sealing ring 111 is increased, and the effect of preventing the medium from flowing back is achieved. Also, the first packing 111 can be engaged with the first cover plate 21a to improve the check effect.

With reference to the foregoing embodiment, the inner circumferential surface of the first annular rib 123 is recessed relative to the inner circumferential surface of the first channel 121 to form a step, and the first sealing ring 111 may be disposed in the recess.

As shown in fig. 2, a supporting column 126 is disposed in the first channel 121, the supporting column 126 extends along the axial direction of the mandrel 12, one end of the first elastic element 22a is supported on an end of the supporting column 126, and the other end is supported on the first cover sheet 21 a. In addition, the supporting column 126 may include a first cylinder 126a and reinforcing ribs 126b, the reinforcing ribs 126b are arranged at intervals along the circumferential direction of the first cylinder 126a, the reinforcing ribs 126b are respectively connected to the supporting column 126 and the mandrel 12, the end of the first cylinder 126a extends out of the reinforcing ribs 126b and is sleeved inside the first elastic member 22a, and the first elastic member 22a is supported on the reinforcing ribs 126 b.

Optionally, in combination with the above, the outlet 102 end of the heating tube 10 may be provided with a check assembly, which can be opened to allow the medium to flow when the medium is introduced into the inlet 101 at a predetermined pressure, and the one-way flow performance of the check assembly can prevent the medium from flowing back. Wherein, one of the inlet 101 end and the outlet 102 end of the heating pipe 10 is provided with a check component, or both the inlet 101 end and the outlet 102 end of the heating pipe 10 can be provided with check components. Specifically, as shown in fig. 1 and 3, the second end of the mandrel 12 is provided with a second channel 122, the second channel 122 is opposite to the outlet 102 and is communicated with the heating channel 103, the check assembly comprises a second check mechanism 20b, and the second check mechanism 20b is configured to be suitable for one-way communication of the medium from the second channel 122 to the outlet 102. By means of the second non-return means 20b, a connection and disconnection between the second channel 122 and the outlet 102 can be achieved, in which case, when the second channel 122 is connected to the outlet 102, the medium can pass from the second channel 122 into the outlet 102 and subsequently into the heating channel 103; while the second check mechanism 20b separates the second passage 122 from the outlet 102, the flow of the medium can be restricted.

The second non-return mechanism 20b of the present invention can have various forms, such as one-way valve, etc., and the present invention provides the second non-return mechanism 20b of some specific embodiments, but this is not a limitation of the protection scope of the present invention, but the technical solution of the present invention is described for clarity and completeness.

As shown in fig. 3, in some embodiments of the present invention, a second sealing ring 112 is disposed between the peripheral wall of the second channel 122 and the peripheral wall of the outlet 102, and the second check mechanism 20b comprises a second cover sheet 21b, the second cover sheet 21b is movably disposed in the outlet 102 and is adapted to abut against the second sealing ring 112 to separate the outlet 102 and the second channel 122, wherein the second cover sheet 21b moves in the outlet 102, and is capable of cooperating with the second sealing ring 112 to separate the outlet 102 and the second channel 122 when moving to abut against the second sealing ring 112, and the second cover sheet 21b cannot move further towards the second channel 122 due to the blocking effect of the second sealing ring 112, that is, when there is a reverse pressure in the medium to urge the second cover sheet 21b towards the second channel 122, the second sealing ring 112 can provide a block to the second cover sheet 21b, and the reverse pressure can make the second cover sheet 21b fit with the second sealing ring 112 more tightly to realize the check effect; when the medium is pressurized from the second passage 122 to the second passage 122, the pressure can drive the second cover sheet 21b to move towards the outlet 102, so that the second cover sheet 21b is far away from the second sealing ring 112, thereby separating the second sealing ring 112 from the second cover sheet 21b and communicating the second passage 122 with the outlet 102 to facilitate the medium circulation.

In addition, as shown in fig. 3, the first check mechanism 20a may further include a second elastic member 22b, the second elastic member 22b is disposed between the second cover plate 21b and the second plug 32, and the second elastic member 22b usually has a force for pushing the second cover plate 21b against the second sealing ring 112. The second elastic member 22b can provide pre-pressure for the second cover sheet 21b, so that the second cover sheet 21b can be maintained in a state of separating the second channel 122 from the outlet 102, and due to the arrangement of the second elastic member 22b, the medium that can enter the heating channel 103 can have a certain pressure to promote the fluid to flow, thereby ensuring smooth flow of the medium, simultaneously counteracting pressure loss of the medium in the flow process, optimizing heating efficiency, and facilitating the next processing of the medium.

The moving direction of the second cover sheet 21b in the second channel 122 may be the axial direction of the spindle 12, and the second elastic member 22b may be a spring or an elastic member with the same function. Specifically, when the medium enters the outlet 102 through the second passage 122, a pushing force is applied to the second cover sheet 21b, so that the second elastic member 22b is compressed, thereby communicating the outlet 102 with the second passage 122, and allowing the medium to enter the outlet 102. When the medium flows along the direction from the heating channel 103 to the second channel 122, the second cover sheet 21b is pushed by the medium in the direction opposite to the direction of the force of the second elastic member 22b on the second cover sheet 21b, so that the second cover sheet 21b is separated from the second sealing ring 112; when the medium flows along the direction from the outlet 102 to the second passage 122, the pushing force of the medium on the second cover plate 21b is the same as the direction of the force of the second elastic element 22b on the second cover plate 21b, so that the force of the second cover plate 21b against the second sealing ring 112 is increased, and the effect of preventing the medium from flowing back is achieved. Also, the second packing 112 can be engaged with the second lid plate 21b to improve the check effect.

In combination with the previous embodiment, the inner circumferential surface of the second annular rib 124 is recessed relative to the inner circumferential surface of the second channel 122 to form a step, and the second sealing ring 112 may be disposed in the recess.

As shown in fig. 3 and 4, a supporting seat 321 is disposed in the second plug 32, one end of the second elastic element 22b is supported on the supporting seat 321, and the other end of the second elastic element supports the second cover plate 21b, wherein a second column 322 is disposed on the supporting seat 321, the second main body is sleeved in the second elastic element 22b to limit and guide the second elastic element 22b, the supporting seat 321 is connected to the inner circumferential surface of the outlet 102, and a through hole is disposed on the supporting seat 321, the through hole is connected to two opposite sides of the supporting seat 321, so as to facilitate the passage of media such as water flow.

Similarly, the second check mechanism 20b includes a second cover plate 21b, a second elastic member 22b, and a second stopper 32 internal support structure, wherein the second stopper 32 internal support structure is a nozzle plate, and may also be a structure that is connected to the second elastic member 22b and does not affect the medium passing. The second cover plate 21b is connected to a second elastic member 22b, and the second elastic member 22b is connected to the flange of the spindle 12, which together form a second check mechanism 20b.

In some embodiments of the present invention, at least one of the first plug 31 and the second plug 32 is welded to the outer tube 11. The first plug 31 and the outer tube 11 may be welded, and the second plug 32 and the outer tube 11 are connected in other manners; or the second plug 32 is welded with the outer tube 11, and the first plug 31 is connected with the outer tube 11 in other modes; or both the first plug 31 and the second plug 32 are welded to the outer tube 11. By soldering, the structure of the heating element 100 can be simplified, the volume of the heating element 100 can be reduced, and the reliability and the integration of the heating element 100 can be improved. In addition, the sealing performance of the heating element 100 can be ensured.

Of course, the first plug 31 of the present invention may also be connected to the outer tube 11 by a screw, a snap, or an integral molding; similarly, the second plug 32 of the present invention can be connected to the outer tube 11 by a screw, a snap, or an integral molding.

As shown in fig. 1, in some embodiments of the present invention, the heating channel 103 is a spiral channel extending in the circumferential and axial directions of the outer tube 11. The water flow needs to pass through the spiral surface, the contact surface between the water flow and the wall of the heating pipe 10 is increased, and the heat conduction efficiency is greatly improved. In addition, by providing the spiral passage, the heating time of the water flow in the heating pipe 10 can be prolonged, so as to further improve the heating efficiency and effect.

Wherein, in the utility model, spiral ribs can be arranged on the inner peripheral surface of the outer tube 11, thereby constructing a spiral channel between the outer tube 11 and the mandrel 12; it is also possible to provide helical ribs on the outer circumferential surface of the mandrel 12, so that a helical channel is formed between the outer tube 11 and the mandrel 12; spiral ribs may also be provided on both the inner circumferential surface of the outer tube 11 and the outer circumferential surface of the mandrel 12. In addition, the spiral rib may be provided separately from both the outer tube 11 and the mandrel 12, or the like.

Referring to fig. 1, in some embodiments of the present invention, the mandrel 12 is provided with a spiral rib 125 extending along the circumferential direction and the axial direction of the outer tube 11 on the outer circumferential surface, and the spiral rib 125 forms a spiral heating channel 103 between the mandrel 12 and the outer tube 11. When the medium enters the heating channel 103, the medium can flow along the spiral extending direction of the heating channel 103, and the time required for raising the temperature of the medium can be shorter or the energy consumption required for raising the medium to the same temperature can be reduced by the spiral structure of the heating channel 103.

Optionally, the outer tube 11 is configured as a heating structure that can heat the medium in the heating channel 103. Wherein, by providing the outer tube 11 in a form of heating the medium, the contact area of the medium to be heated and the heating element 100 can be increased, thereby improving the heating effect. Moreover, the outer tube 11 can be conveniently wired as a heating element or a heat conducting element, so that the water and electricity isolation is realized, the safety and the stability are improved, the temperature of the heating element 100 is conveniently detected, and the timely control and protection are facilitated.

In addition, the mandrel 12 can also be configured as a heating structure which can heat the medium in the heating channel 103, so that the protection of the heat-generating structure can be enhanced and energy loss can be avoided. Of course, it is also possible to provide both the mandrel 12 and the outer tube 11 with a structure that heats the medium.

In connection with the foregoing embodiment, the two ends of the mandrel 12 are respectively provided with the first channel 121 and the second channel 122, after the medium enters the heating channel 103 from the first channel 121, the medium is heated by the heating structure, the temperature is increased, and then the medium exits from the heating channel 103 and enters the second channel 122.

Optionally, two ends of the mandrel 12 are respectively sleeved at inner sides of two ends of the outer tube 11, and two ends of the mandrel 12 are respectively matched with shaft holes at two ends of the outer tube 11, and a third sealing ring 113 is arranged between two ends of the mandrel 12 and two ends of the outer tube 11. Thereby, the sealing performance between the mandrel 12 and the outer tube 11 can be improved, and the stability and safety of the heating element 100 can be ensured.

The mandrel 12 may be configured as a long strip, both ends of the mandrel 12 are provided with flanges, the spiral rib 125 is disposed between the flanges at both ends of the mandrel 12, the spiral rib 125 forms a spirally extending groove between the flanges at both ends of the mandrel 12, both ends of the mandrel 12 are respectively provided with a first channel 121 and a second channel 122, and the peripheral walls of the first channel 121 and the second channel 122 are both provided with via holes, and the first channel 121 is connected to the heating channel 103 through the corresponding via holes; the second channel 122 connects the heating channel 103 through a corresponding via hole. The outer peripheral surfaces of the two ends of the mandrel 12 are provided with third sealing rings 113, and the gap between the mandrel 12 and the outer tube 11 can be closed through the third sealing rings 113.

In some embodiments of the present invention, the first plug 31 is connected to the heating pipe 10, and plays a role of fixing the heating pipe 10, wherein the first plug 31 includes a sleeve portion 311, the aforementioned inlet 101 is constructed in the sleeve portion 311, and there is a ladder structure on the outer peripheral surface of the sleeve portion 311, so that the radial dimension of the outer peripheral surface of the sleeve portion 311, which is away from one end of the outer pipe 11, is reduced, which is convenient for being connected to the upstream pipeline, so that the structural stability of the upstream pipeline is improved, and in addition, the sleeve portion 311 may also have a structural shape which is convenient for being connected to the upstream pipeline. In addition, the first plug 31 may further include a support structure, wherein the support structure may include, but is not limited to, a support leg 312, which may be a structural body with a similar support function.

Similarly, the second plug 32 is connected to the heating tube 10 and plays a role of fixing the heating tube 10, wherein the second plug 32 may also include a sleeve portion 311 and/or a support structure, and the first plug 31 and the second plug 32 may have the same or different shapes.

The heating element 100 of the present invention can be used in a water purifier, a water dispenser, etc., wherein, as shown in fig. 5, a temperature detector 40 can be disposed at least at one of an inlet 101 and an outlet 102 of the heating element 100 to obtain a heating condition of the heating element 100.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A heating element, comprising:

the heating device comprises a heating pipe (10), wherein an inlet (101) and an outlet (102) are arranged on the heating pipe (10), a heating channel (103) which is communicated with the inlet (101) and the outlet (102) is formed in the heating pipe (10), and the heating pipe (10) is suitable for heating a medium in the heating channel (103);

a non-return assembly provided on the heating tube (10) and configured for unidirectional flow of a medium from the inlet (101) to the outlet (102).

2. Heating element according to claim 1, characterized in that the non-return component is integrated in the heating tube (10).

3. Heating element according to claim 1 or 2, characterized in that the heating tube (10) comprises:

the device comprises an outer pipe (11), wherein two ends of the outer pipe (11) are respectively connected with a first plug (31) and a second plug (32), the first plug (31) is provided with an inlet (101), and the second plug (32) is provided with an outlet (102);

the mandrel (12) is arranged in the outer tube (11) and extends along the axial direction of the outer tube (11), and the heating channel (103) is constructed between the mandrel (12) and the outer tube (11).

4. A heating element according to claim 3, wherein the first end of the mandrel (12) is provided with a first passage (121), the first passage (121) being opposite to the inlet (101) and communicating with the heating passage (103), the non-return assembly comprising a first non-return means (20 a), the first non-return means (20 a) being configured for unidirectional passage of a medium from the inlet (101) to the first passage (121).

5. Heating element according to claim 4, characterized in that a first sealing ring (111) is provided between the peripheral wall of the first passage (121) and the peripheral wall of the inlet (101), the first non-return means (20 a) comprising:

a first flap (21 a), said first flap (21 a) being movably arranged in said first passage (121) and being adapted to stop against said first sealing ring (111) to separate said inlet (101) from said first passage (121);

a first elastic member (22 a), wherein the first elastic member (22 a) is arranged between the first cover sheet (21 a) and the mandrel (12), and the first elastic member (22 a) always has a force for pushing the first cover sheet (21 a) to abut against the first sealing ring (111).

6. A heating element according to claim 3, characterized in that the second end of the mandrel (12) is provided with a second channel (122), which second channel (122) is opposite to the outlet (102) and communicates with the heating channel (103), the non-return assembly comprising a second non-return means (20 b), which second non-return means (20 b) is configured for one-way passage of a medium from the second channel (122) to the outlet (102).

7. The heating element according to claim 6, wherein a second sealing ring (112) is provided between a peripheral wall of the second channel (122) and a peripheral wall of the outlet (102), the second non-return means (20 b) comprising:

a second flap (21 b), said second flap (21 b) being movably disposed within said outlet (102) and adapted to stop against said second sealing ring (112) to separate said outlet (102) from said second passage (122);

and the second elastic piece (22 b), the second elastic piece (22 b) is arranged between the second cover sheet (21 b) and the second plug (32), and the second elastic piece (22 b) always has a force for pushing the second cover sheet (21 b) to abut against the second sealing ring (112).

8. Heating element according to claim 3, characterized in that at least one of said first plug (31) and said second plug (32) is screwed, welded, snap-fitted or integrally formed with said outer tube (11).

9. Heating element according to claim 3,

the heating channel (103) is a spiral channel extending along the circumferential direction and the axial direction of the outer pipe (11); and/or

A spiral convex rib (125) extending along the circumferential direction and the axial direction of the outer pipe (11) is arranged on the outer circumferential surface of the mandrel (12), and a heating channel (103) extending in a spiral manner is constructed between the mandrel (12) and the outer pipe (11) by the spiral convex rib (125); and/or

At least one of the outer tube (11) and the mandrel (12) is configured as a heating structure which can heat a medium within the heating channel (103).

10. The heating element according to claim 3, wherein two ends of the mandrel (12) are respectively sleeved inside two ends of the outer tube (11), two ends of the mandrel (12) are respectively matched with shaft holes at two ends of the outer tube (11), and third sealing rings (113) are respectively arranged between two ends of the mandrel (12) and two ends of the outer tube (11).

Images