Controllable electric heating module and electric heating hookah

Abstract

Provided in the present invention are a controllable electric heating module and an electric heating hookah, the controllable electric heating module comprising a housing, a helical electric heating wire, a temperature-measuring probe, an airflow line and a control unit, wherein the helical electric heating wire is arranged in the housing, and the temperature-measuring probe is arranged on the helical electric heating wire; the control unit is electrically connected to both the helical electric heating wire and the temperature-measuring probe; the airflow line runs through the housing; the side wall and the top of the housing each have a dual-layer structure, and an interlayer of the side wall and an interlayer of the top form interconnected flow guide spaces; air inlets running through the side wall are provided at the bottom of the side wall; a flow guide hole running through the inner wall of the top is provided in the middle of the top of the housing; and air outlet holes are provided at the bottom of the housing and are in communication with the flow guide space of the side wall. In the present invention, using the helical electric heating wire, the temperature-measuring probe and the control unit to perform real-time temperature measurement and control on air ensures that a hookah has stable heating efficiency; and using the airflow line to fully heat a gas avoids unbalanced gas heating or heat waste of the electric heating wire.

Description

A controllable electric heating module and an electric heating water pipe

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410658780.2, filed on May 27, 2024, entitled "A Controllable Electric Heating Module and an Electric Heated Hood", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to the field of smoking accessories technology, and in particular to a controllable electric heating module and an electric heating hookah. Background Technology

[0004] Hookah is a tobacco product originating in the Middle East. It is filtered through water, which keeps many harmful substances in the water, so hookah is also known as filtered hookah.

[0005] Currently, hookahs are heated using either charcoal or electricity. The heat generated by charcoal heating decreases as the charcoal burns, affecting the smoker's experience of the smoke. Furthermore, the combustion of charcoal produces harmful gases such as carbon dioxide and carbon monoxide, which can harm human health, and the dust generated also has an adverse impact on the environment.

[0006] Furthermore, the electric heating method for hookah has a complex structure and unstable temperature control, making it prone to overheating and scorching the tobacco, or insufficient heating to fully heat the tobacco. Additionally, improper airflow direction and flow control in the heating structure can easily lead to wasted heat from the heating wire or overly concentrated heating areas, resulting in low heat utilization efficiency. Summary of the Invention

[0007] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a controllable electric heating module and an electric-heated water pipe, which helps to solve the aforementioned technical problem.

[0008] The first objective of this invention is to provide a controllable electric heating module, comprising a housing, a spiral heating wire, a temperature probe, an airflow pipe, and a control unit; the spiral heating wire is disposed within the housing, and the temperature probe is disposed on the spiral heating wire; the control unit is electrically connected to the spiral heating wire and the temperature probe respectively; the airflow pipe penetrates the housing; wherein, the sidewalls and top of the housing are both double-layered structures, with the interlayers of the sidewalls and the top forming interconnected flow guiding spaces; an air inlet is provided at the bottom of the sidewalls; a flow guiding hole is provided in the middle of the top of the housing, penetrating the inner wall of the top; an air outlet is provided at the bottom of the housing, and the air outlet communicates with the flow guiding space of the sidewalls; airflow can enter the inner cavity of the housing from the air inlet, then pass through the middle of the spiral heating wire, enter the flow guiding space of the top through the flow guiding hole, and finally be delivered outward from the air outlet through the flow guiding space of the sidewalls.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The controllable electric heating module of this invention utilizes a spiral heating wire, a temperature probe, and a control unit to perform real-time temperature measurement and control of the air drawn into the housing, ensuring stable heating efficiency for the water pipes. Furthermore, the rational design of the housing and the optimized arrangement of the airflow channels based on the spatial position of the spiral heating wire enable the heat from the heating wire to fully heat the gas flowing through the housing, avoiding uneven temperature distribution caused by concentrated heating or wasted heat from the heating wire due to partial gas ignition.

[0011] Furthermore, the housing includes a top cover, a fixed inner cover, side baffles, and a bottom plate; the fixed inner cover is located in the middle of the side baffles, below the top cover, and above the bottom plate; a top guiding space is formed between the fixed inner cover and the top cover, and a side wall guiding space is provided between the side baffles and the fixed inner cover; the bottom vent is located on the bottom plate. Its technical advantage lies in designing the housing with a sandwich structure and guiding space as a combination of multiple components, making disassembly and assembly more convenient, and maintenance and cleaning easier, while ensuring a good sealing effect.

[0012] Furthermore, the outer wall of the top cover is also provided with an airflow inlet. The technical effect is that the airflow inlet introduces external air, which reduces the heat of the airflow and increases the gas velocity, serving as an auxiliary measure to control the airflow temperature and speed.

[0013] Furthermore, the diameter of the air inlet is larger than the diameter of the air outlet. The technical advantage is that this design increases the speed at which heated gas passes through ash and tobacco residue, because smoke needs to be filtered through water or other liquids; sufficient flow velocity is necessary to improve the smoking experience.

[0014] Furthermore, a push-pull gate is provided in the air inlet, which is used to adjust the diameter of the air inlet. The technical effect is that, similar to the difference between the diameters of the air inlet and outlet mentioned above, changing the size of the air inlet can adjust the speed at which the heated gas passes through the ash and tobacco paste, further enhancing the experience of smoking hookah.

[0015] Furthermore, the housing is also provided with a heat dissipation pipe, which passes through the base plate and connects to the middle of the spiral heating wire to dissipate the hot air in the middle of the spiral heating wire. The technical advantage is that, because electric heating is highly efficient, the air passing through the middle of the spiral heating wire is heated to an excessively high temperature, making it unsuitable for direct heating of tobacco or tobacco paste. Therefore, a heat dissipation pipe is provided to discharge the excessively hot heated gas.

[0016] The second objective of this invention is to provide an electrically heated hookah, comprising a tobacco spool, a hookah bottle, a pipe, and the aforementioned controllable electric heating module; the pipe is provided with the controllable electric heating module, the tobacco spool, and the hookah bottle arranged sequentially from top to bottom; the pipe is provided with a drainage cavity extending along its own axial direction, and the drainage cavity is connected to the air outlet through the inner cavity of the tobacco spool.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The electric heating water pipe of the present invention discharges the excessively hot heated gas through the flue. On the one hand, it is convenient to determine the appropriate discharge position and angle. On the other hand, the heat dissipation chamber and the drainage chamber in the flue are close to each other, so the gas in the drainage chamber can also be continuously heated by the gas in the heat dissipation chamber.

[0019] Furthermore, a heat dissipation pipe is provided at the bottom of the housing, comprising a hot gas collection chamber at the bottom of the housing and a heat dissipation chamber extending axially along the flue pipe; a heat-conducting hole communicating with the middle of the spiral heating wire is provided at the top of the hot gas collection chamber, and the heat dissipation chamber is connected to the hot gas collection chamber. The technical advantage is that by discharging the overheated gas through the flue pipe, it is easier to determine a suitable discharge position and angle; furthermore, the distance between the heat dissipation chamber and the drainage chamber in the flue pipe is relatively short, so the gas in the drainage chamber can still be continuously heated by the gas in the heat dissipation chamber. Using the hot gas collection chamber for superheated gas discharge allows for the provision of more heat-conducting holes, facilitating the stable and rapid discharge of hot gas.

[0020] Furthermore, the heat dissipation cavity is located at the center of the flue, and the drainage cavity is located around the heat dissipation cavity; the side wall of the flue is provided with heat dissipation holes, which penetrate the drainage cavity and communicate with the heat dissipation cavity. The technical advantage is that the airflow in the drainage cavity can continuously receive heat from the heat dissipation cavity, while the surrounding and enclosed structure ensures balanced heat transfer.

[0021] Furthermore, the control unit is mounted on the flue. When the temperature probe detects that the temperature of the spiral heating wire is low, the control unit activates the spiral heating wire to heat the gas flowing through the housing. When the temperature probe detects that the temperature of the spiral heating wire is appropriate, the control unit controls the spiral heating wire to heat at an appropriate power. When the temperature probe detects that the temperature of the spiral heating wire is too high, the control unit controls the spiral heating wire to stop heating. The technical advantage is that by utilizing the spiral heating wire, temperature probe, and control unit to perform real-time temperature measurement and control of the air, the water flue achieves stable heating efficiency.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 is a three-dimensional structural schematic diagram of the controllable electric heating module provided by the present invention;

[0025] Figure 2 is an exploded view of the controllable electric heating module provided by the present invention;

[0026] Figure 3 is a schematic diagram of the external structure of the electrically heated water flue provided by the present invention;

[0027] Figure 4 is a cross-sectional view of the flue tube near the tobacco disc in the electric heating water pipe provided by the present invention.

[0028] Icons: 100-Shell; 110-Top cover; 111-Guide hole; 112-Airflow inlet; 120-Fixed inner cover; 130-Side baffle; 131-Air inlet; 140-Bottom plate; 141-Air outlet; 1421-Hot air collection chamber; 1422-Heat conduction hole; 1423-Heat dissipation hole; 101-Guide space; 200-Spiral heating wire; 300-Control unit; 400-Tobacco tray; 500-Hookah bottle; 600-Tobacco pipe; 610-Guide chamber; 620-Heat dissipation chamber. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and labeled in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] Figure 1 is a three-dimensional structural schematic diagram of the controllable electric heating module provided by the present invention; Figure 2 is an exploded view of the controllable electric heating module provided by the present invention.

[0037] Referring to Figures 1 and 2, this embodiment provides a controllable electric heating module, including a housing 100, a spiral heating wire 200, a temperature probe, an airflow pipeline, and a control unit 300; the spiral heating wire 200 is disposed in the housing 100, and the temperature probe is disposed on the spiral heating wire 200; the control unit 300 is electrically connected to the spiral heating wire 200 and the temperature probe respectively.

[0038] An airflow duct runs through the housing 100; the sidewalls and top of the housing 100 are both double-layered structures, with the interlayers of the sidewalls and top forming an interconnected flow guide space 101; an air inlet 131 is provided at the bottom of the sidewalls; a flow guide hole 111 is provided in the middle of the top of the housing 100, penetrating the inner wall of the top; and an air outlet 141 is provided at the bottom of the housing 100, which is connected to the flow guide space 101 of the sidewalls.

[0039] Airflow can enter the inner cavity of housing 100 through air inlet 131, pass through the middle of spiral heating wire 200, enter the top guide space 101 through guide hole 111, and finally be transported outward through air outlet 141 through the guide space 101 on the side wall.

[0040] It should be noted that the controllable electric heating module of the present invention is used to heat the tobacco and tobacco paste in hookah. The working principle and operation process of the controllable electric heating module in this embodiment are as follows:

[0041] 1. The housing 100 is equipped with an airflow duct to form a gas flow channel. The spiral heating wire 200, temperature probe, and control unit 300 combine to form a control system for monitoring the heating temperature. When the control unit 300 detects through the temperature probe that the temperature of the spiral heating wire 200 is low, it activates the spiral heating wire 200 to heat the gas flowing through the housing 100. When the control unit 300 detects through the temperature probe that the temperature of the spiral heating wire 200 is appropriate, it controls the spiral heating wire 200 to heat at an appropriate power. When the control unit 300 detects through the temperature probe that the temperature of the spiral heating wire 200 is too high, it controls the spiral heating wire 200 to stop heating.

[0042] 2. The airflow pipe is set inside the housing 100 so that the external airflow can enter the inner cavity of the housing 100 through the air inlet 131, specifically through the middle of the spiral heating wire 200, and then through the guide hole 111 into the top guide space 101, and finally through the guide space 101 on the side wall to be delivered to the tobacco tray 400 through the air outlet 141.

[0043] Therefore, the controllable electric heating module of this invention utilizes a spiral heating wire, a temperature probe, and a control unit to perform real-time temperature measurement and control of the air drawn into the housing, ensuring stable heating efficiency for the water pipes. Furthermore, the rational design of the housing and the reasonable arrangement of the airflow pipes based on the spatial position of the spiral heating wire enable the heat from the spiral heating wire to fully heat the gas flowing through the housing, avoiding uneven temperature caused by concentrated heating of the gas, or the waste of heat from the heating wire due to some gas not being heated.

[0044] In an optional embodiment described above, further as shown in Figures 1 and 2, the housing 100 includes a top cover 110, a fixed inner cover 120, side baffles 130, and a bottom plate 140. The fixed inner cover 120 is located in the middle of the side baffles 130, below the top cover 110, and above the bottom plate 140. A top guide space 101 is formed between the fixed inner cover 120 and the top cover 110, and a side wall guide space 101 is provided between the side baffles 130 and the fixed inner cover 120. An air outlet 141 is provided on the bottom plate 140. In this structural design, the housing 100 with the sandwich structure and the guide space 101 is designed as a combination structure of multiple components, which makes disassembly and assembly more convenient, and maintenance and cleaning more convenient, while ensuring the sealing effect.

[0045] In an optional embodiment described above, as shown in Figures 1 and 2, an airflow inlet 112 is further provided on the outer wall of the top cover 110. In this structural design, the airflow inlet 112 introduces external air to reduce the heat of the airflow and increase the gas velocity, serving as an auxiliary measure to control the airflow temperature and speed.

[0046] In an optional embodiment described above, as shown in Figures 1 and 2, the diameter of the air inlet 131 is larger than the diameter of the air outlet 141. This structural design increases the speed at which heated gas passes through ash and tobacco residue, because smoke needs to be filtered through water or other liquids, and sufficient flow velocity is necessary to improve the smoking experience.

[0047] In an optional embodiment described above, as shown in Figures 1 and 2, a push-pull gate is provided in the air inlet 131 to adjust the diameter of the air inlet 131. This structural design differs from the aforementioned differences in the diameter of the air inlet 131 and the air outlet 141. Changing the size of the air inlet 131 can adjust the speed at which the heated gas passes through the ash and tobacco paste, further enhancing the experience of smoking hookah.

[0048] In an optional embodiment described above, as shown in Figures 1 and 2, the housing 100 is further provided with a heat dissipation pipe. This heat dissipation pipe passes through the base plate 140 and connects to the middle of the spiral heating wire 200, serving to exhaust the hot air from the center of the spiral heating wire 200. In this structural design, because the heating efficiency of electric heating is very high, the air passing through the middle of the spiral heating wire 200 is heated to a temperature that is too high to be directly heated through tobacco or tobacco paste. Therefore, a heat dissipation pipe is provided to exhaust the excessively hot heated gas.

[0049] Figure 3 is a schematic diagram of the external structure of the electric heating water pipe provided by the present invention; Figure 4 is a cross-sectional view of the position of the smoke tube 600 near the tobacco disc 400 in the electric heating water pipe provided by the present invention.

[0050] Referring to Figures 3 and 4, this embodiment also provides an electrically heated hookah, including a tobacco spool 400, a hookah bottle 500, a pipe 600, and a controllable electric heating module of any of the above embodiments; the pipe 600 is provided with the controllable electric heating module, the tobacco spool 400, and the hookah bottle 500 in sequence from top to bottom; the pipe 600 is provided with a drainage cavity 610 extending along its own axial direction, and the drainage cavity 610 is connected to the air outlet 141 through the inner cavity of the tobacco spool 400.

[0051] In an optional embodiment described above, further as shown in Figures 3 and 4, a heat dissipation pipe is provided at the bottom of the housing 100. The heat dissipation pipe includes a hot gas collection chamber 1421 at the bottom of the housing 100 and a heat dissipation chamber 620 extending axially along the flue pipe 600. A heat-conducting hole 1422 communicating with the middle of the spiral heating wire 200 is provided at the top of the hot gas collection chamber 1421, and the heat dissipation chamber 620 is connected to the hot gas collection chamber 1421. In this structural design, the overheated heated gas is discharged through the flue pipe 600. On the one hand, this facilitates the determination of a suitable discharge position and angle. On the other hand, the heat dissipation chamber 620 and the drainage chamber 610 in the flue pipe 600 are relatively close, so the gas in the drainage chamber 610 can also be continuously heated by the gas in the heat dissipation chamber 620. Furthermore, by using the hot gas collection chamber 1421 to discharge overheated gas, more heat-conducting holes 1422 can be provided, which is beneficial for the stable and rapid discharge of hot gas.

[0052] In an optional embodiment described above, further as shown in Figures 3 and 4, the heat dissipation cavity 620 is located at the center of the flue 600, and the drainage cavity 610 is located around the heat dissipation cavity 620; the side wall of the flue 600 is provided with heat dissipation holes 1423, which penetrate the drainage cavity 610 and communicate with the heat dissipation cavity 620. In this structural design, the airflow in the drainage cavity 610 can continuously receive heat from the heat dissipation cavity 620, and the surrounding and enclosed structure can ensure balanced heat transfer.

[0053] In an optional embodiment described above, further as shown in Figure 3, the control unit 300 is disposed on the flue 600. When the control unit 300 detects through the temperature probe that the temperature of the spiral heating wire 200 is low, it activates the spiral heating wire 200 to heat the gas flowing through the housing 100. When the control unit 300 detects through the temperature probe that the temperature of the spiral heating wire 200 is appropriate, it controls the spiral heating wire 200 to heat at an appropriate power. When the control unit 300 detects through the temperature probe that the temperature of the spiral heating wire 200 is too high, it controls the spiral heating wire 200 to stop heating. In this structural design, the spiral heating wire, temperature probe, and control unit are used to perform real-time temperature measurement and control of the air, ensuring that the water flue has a stable heating efficiency.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A controllable electric heating module, characterized in that, The application relates to a controllable electric heating module, which comprises a shell (100), a spiral electric heating wire (200), a temperature measuring probe, an air flow pipeline and a control unit (300); the spiral electric heating wire (200) is arranged in the shell (100), and the temperature measuring probe is arranged on the spiral electric heating wire (200); the control unit (300) is electrically connected with the spiral electric heating wire (200) and the temperature measuring probe respectively. The air flow pipeline penetrates through the shell (100); wherein the side wall and the top of the shell (100) are double-layer structures, the interlayer of the side wall and the interlayer of the top form a mutual communication flow guide space (101); the bottom of the side wall is provided with an air inlet hole (131) penetrating through the side wall; the middle of the top of the shell (100) is provided with a flow guide hole (111) penetrating through the inner wall of the top; the bottom of the shell (100) is provided with an air outlet hole (141), and the air outlet hole (141) is in communication with the flow guide space (101) of the side wall. Air flow can enter the inner cavity of the shell (100) from the air inlet hole (131), then pass through the middle of the spiral electric heating wire (200), enter the flow guide space (101) of the top through the flow guide hole (111), and finally be transported outward from the air outlet hole (141) through the flow guide space (101) of the side wall.

2. A controllable electric heating module according to claim 1, characterized in that, The shell (100) comprises a top cover (110), a fixed inner cover (120), a side wall baffle (130) and a bottom plate (140); the fixed inner cover (120) is located in the middle of the side wall baffle (130), below the top cover (110) and above the bottom plate (140); the flow guide space (101) of the top is formed between the fixed inner cover (120) and the top cover (110), and the flow guide space (101) of the side wall is arranged between the side wall baffle (130) and the fixed inner cover (120); the air outlet hole (141) of the bottom is arranged on the bottom plate (140).

3. A controllable electric heating module according to claim 2, characterized in that The outer wall of the top cover (110) is further provided with an air inlet (112).

4. The controllable electric heating module according to claim 2, characterized in that, The caliber of the air inlet hole (131) is larger than that of the air outlet hole (141).

5. The controllable electric heating module according to claim 2, characterized in that, A push-pull gate is arranged in the air inlet hole (131), and the push-pull gate is used for adjusting the caliber of the air inlet hole (131).

6. The controllable electric heating module according to claim 2, characterized in that, The shell (100) is further provided with a heat dissipation pipeline, the heat dissipation pipeline penetrates through the bottom plate (140) and is in communication with the middle of the spiral electric heating wire (200), and is used for leading out the hot air in the middle of the spiral electric heating wire (200).

7. An electrically heated shisha, characterized in that The application relates to a controllable electric heating module, which comprises a shell (100), a spiral electric heating wire (200), a temperature measuring probe, an air flow pipeline and a control unit (300); the spiral electric heating wire (200) is arranged in the shell (100), and the temperature measuring probe is arranged on the spiral electric heating wire (200); the control unit (300) is electrically connected with the spiral electric heating wire (200) and the temperature measuring probe respectively. The air flow pipeline penetrates through the shell (100); wherein the side wall and the top of the shell (100) are double-layer structures, the interlayer of the side wall and the interlayer of the top form a mutual communication flow guide space (101); the bottom of the side wall is provided with an air inlet hole (131) penetrating through the side wall; the middle of the top of the shell (100) is provided with a flow guide hole (111) penetrating through the inner wall of the top; the bottom of the shell (100) is provided with an air outlet hole (141), and the air outlet hole (141) is in communication with the flow guide space (101) of the side wall. Air flow can enter the inner cavity of the shell (100) from the air inlet hole (131), then pass through the middle of the spiral electric heating wire (200), enter the flow guide space (101) of the top through the flow guide hole (111), and finally be transported outward from the air outlet hole (141) through the flow guide space (101) of the side wall. The shell (100) comprises a top cover (110), a fixed inner cover (120), a side wall baffle (130) and a bottom plate (140); the fixed inner cover (120) is located in the middle of the side wall baffle (130), below the top cover (110) and above the bottom plate (140); the flow guide space (101) of the top is formed between the fixed inner cover (120) and the top cover (110), and the flow guide space (101) of the side wall is arranged between the side wall baffle (130) and the fixed inner cover (120); the air outlet hole (141) of the bottom is arranged on the bottom plate (140). The outer wall of the top cover (110) is further provided with an air inlet (112). The caliber of the air inlet hole (131) is larger than that of the air outlet hole (141). A push-pull gate is arranged in the air inlet hole (131), and the push-pull gate is used for adjusting the caliber of the air inlet hole (131). The shell (100) is further provided with a heat dissipation pipeline, the heat dissipation pipeline penetrates through the bottom plate (140) and is in communication with the middle of the spiral electric heating wire (200), and is used for leading out the hot air in the middle of the spiral electric heating wire (200). The application relates to a controllable electric heating module, which comprises a shell (100), a spiral electric heating wire (200), a temperature measuring probe, an air flow pipeline and a control unit (300); the spiral electric heating wire (200) is arranged in the shell (100), and the temperature measuring probe is arranged on the spiral electric heating wire (200); the control unit (300) is electrically connected with the spiral electric heating wire (200) and the temperature measuring probe respectively. The air flow pipeline penetrates through the shell (100); wherein the side wall and the top of the shell (100) are double-layer structures, the interlayer of the side wall and the interlayer of the top form a mutual communication flow guide space (101); the bottom of the side wall is provided with an air inlet hole (131) penetrating through the side wall; the middle of the top of the shell (100) is provided with a flow guide hole (111) penetrating through the inner wall of the top; the bottom of the shell (100) is provided with an air outlet hole (141), and the air outlet hole (141) is in communication with the flow guide space (101) of the side wall. Air flow can enter the inner cavity of the shell (100) from the air inlet hole (131), then pass through the middle of the spiral electric heating wire (200), enter the flow guide space (101) of the top through the flow guide hole (111), and finally be transported outward from the air outlet hole (141) through the flow guide space (101) of the side wall. The shell (100) comprises a top cover (110), a fixed inner cover (120), a side wall baffle (130) and a bottom plate (140); the fixed inner cover (120) is located in the middle of the side wall baffle (130), below the top cover (110) and above the bottom plate (140); the flow guide space (101) of the top is formed between the fixed inner cover (120) and the top cover (110), and the flow guide space (101) of the side wall is arranged between the side wall baffle (130) and the fixed inner cover (120); the air outlet hole (141) of the bottom is arranged on the bottom plate (140). The outer wall of the top cover (110) is further provided with an air inlet (112). The caliber of the air inlet hole (131) is larger than that of the air outlet hole (141). A push-pull gate is arranged in the air inlet hole (131), and the push-pull gate is used for adjusting the caliber of the air inlet hole (131). The shell (100) is further provided with a heat dissipation pipeline, the heat dissipation pipeline penetrates through the bottom plate (140) and is in communication with the middle of the spiral electric heating wire (200), and is used for leading out the hot air in the middle of the spiral electric heating wire (200).

8. The electrically heated shisha device of claim 7, wherein, The bottom of the shell (100) is provided with a heat dissipation pipeline, which comprises a hot gas collecting cavity (1421) at the bottom of the shell (100) and a heat dissipation cavity (620) extending axially along the smoke pipe (600); the top of the hot gas collecting cavity (1421) is provided with a heat conduction hole (1422) in communication with the middle part of the spiral electric heating wire (200), and the heat dissipation cavity (620) is in communication with the hot gas collecting cavity (1421).

9. The electrically heated shisha device of claim 8, wherein, The heat dissipation cavity (620) is located at the center of the smoke pipe (600), and the drainage cavity (610) is located at the periphery of the heat dissipation cavity (620); the side wall of the smoke pipe (600) is provided with a heat dissipation hole (1423), which communicates with the heat dissipation cavity (620) through the drainage cavity (610).

10. The electrically heated shisha device of claim 7, wherein, The control unit (300) is arranged on the smoke pipe (600), and when the temperature probe obtains that the temperature of the spiral electric heating wire (200) is low, the control unit (300) is used to start the spiral electric heating wire (200) to heat the gas flowing through the inside of the shell (100); when the temperature probe obtains that the temperature of the spiral electric heating wire (200) is appropriate, the control unit (300) is used to control the spiral electric heating wire (200) to heat at appropriate power; when the temperature probe obtains that the temperature of the spiral electric heating wire (200) is too high, the control unit (300) is used to control the spiral electric heating wire (200) to stop heating.

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