A height-adjustable liquid heater

Abstract

This application discloses an adjustable-height liquid heater, including a base and a PCB board disposed inside the base, a heating module disposed on the base and electrically connected to the PCB board, a connecting bracket spanning the upper side of the base, a suspension assembly disposed on the upper side of the connecting bracket, a kettle detachably connected to the suspension assembly, and a lifting drive assembly disposed on the base, connected to the connecting bracket, and electrically connected to the PCB board. The lifting drive assembly is used to drive the connecting bracket to move the suspension assembly and the kettle up and down to adjust the position height of the kettle. This application achieves flexible adjustment of the kettle height to achieve the purpose of controlling the kettle's heating or keeping it warm. When the kettle is lifted to a high position by the lifting module, the baking space of the base is fully utilized, thereby further increasing the amount of food that can be baked, thus improving the multifunctionality and practicality of the liquid heater.

Description

Technical Field

[0001] This application relates to the technical field of liquid heaters, and more particularly to a liquid heater with adjustable height. Background Technology

[0002] Liquid heaters are widely used in daily life and business settings as a common heating device, such as electric ceramic stoves for brewing tea. These stoves include a heating base and a kettle. However, in practice, the kettle is placed directly on the heating base, making it impossible to suspend the kettle or flexibly adjust its height. This not only causes the kettle to occupy the food baking space on the heating base but also makes it impossible to control the heating effect by adjusting the kettle's height, thus affecting the applicability and practicality of the liquid heater. Therefore, those skilled in the art urgently need to develop a height-adjustable liquid heater to meet more practical application needs. Utility Model Content

[0003] The main objective of this application is to provide an adjustable-height liquid heater, which aims to solve the aforementioned technical problems.

[0004] An adjustable-height liquid heater includes a base and a PCB board disposed inside the base, a heating module disposed on the base and electrically connected to the PCB board for heating by electricity, the adjustable-height liquid heater further includes a connecting bracket spanning the upper side of the base, a suspension assembly disposed on the upper side of the connecting bracket, a kettle detachably connected to the suspension assembly, and a lifting drive assembly disposed on the base and connected to the connecting bracket and electrically connected to the PCB board, the lifting drive assembly being used to drive the connecting bracket to move the suspension assembly and the kettle up and down to adjust the position height of the kettle.

[0005] The height-adjustable liquid heater as described above, the base includes a lower base and an upper base disposed on the upper side of the lower base;

[0006] The lower base has an internal cavity for receiving the contents, and has an upper left opening on its upper left side and an upper right opening on its upper right side; both the upper left opening and the upper right opening are connected to the cavity for receiving the contents.

[0007] The PCB board is disposed within the accommodating cavity;

[0008] The lifting drive assembly includes:

[0009] The lower end of the left lifting drive assembly is located in the upper left opening and is electrically connected to the PCB board, and its upper end extends upward to connect to the lower left end of the connecting bracket.

[0010] The lower end of the right lifting drive assembly is located in the upper right opening and electrically connected to the PCB board, and its upper end extends upward to connect to the lower right end of the connecting bracket.

[0011] As described above, in the adjustable-height liquid heater, the upper left opening and the upper right opening are arranged symmetrically.

[0012] The left lifting drive group and the right lifting drive group are also arranged symmetrically.

[0013] As described above, in the adjustable-height liquid heater, both the left and right lifting drive groups are multi-stage telescopic electric cylinders.

[0014] As described above, the height-adjustable liquid heater has a connecting bracket that is a hollow inverted U-shaped bend.

[0015] The adjustable-height liquid heater as described above, the suspension assembly includes:

[0016] A hook is provided on the upper side of the connecting bracket, with its upper end extending upward through the connecting bracket, and a connecting threaded part is provided at its upper end;

[0017] A locking nut is provided, which is connected to the threaded part of the connection and is located on the upper side of the connection bracket;

[0018] The lower locking nut, which is connected to the connecting threaded portion, is located below the upper locking nut and is used to cooperate with the upper locking nut to lock the hook.

[0019] As described above, the adjustable-height liquid heater has an air inlet in the middle of the lower side of the lower base that communicates with the accommodating cavity;

[0020] The upper side of the accommodating cavity is provided with a connecting opening located above the air inlet;

[0021] The upper base has a communicating cavity that communicates with the accommodating cavity, and a mounting slot that communicates with the communicating cavity in the middle of its upper side for mounting the heating module.

[0022] The upper base has an outwardly protruding part on its upper periphery, and an upwardly inclined surface on the lower side of the outwardly protruding part. An air outlet is opened on the upwardly inclined surface, which is connected to the communicating cavity.

[0023] The base also includes an exhaust fan, which is located within the accommodating cavity, between the air inlet and the communicating opening, and is electrically connected to the PCB board.

[0024] As described above, the adjustable height liquid heater, the base further includes a flow guide housing disposed in the communicating cavity and located below the mounting slot. The lower side of the flow guide housing is connected to the lower base and located outside the communicating opening, and its interior is provided with a vertically penetrating flow guide channel. The upper side of the interior of the flow guide channel is provided with an outwardly inclined flow guide surface for guiding airflow out of the air outlet.

[0025] As described above, the adjustable-height liquid heater, the upper base is also provided with a mounting bracket located inside the communicating cavity, the mounting bracket is provided with the mounting groove, and the lower side is provided with a downwardly extending connecting column located in the flow guide channel, there are multiple downwardly extending connecting columns, and they are spaced apart on the outside of the exhaust fan; each of the downwardly extending connecting columns is provided with a threaded connection hole.

[0026] The lower base is also provided with an upper extension connecting post located in the communicating opening and extending upward. The number of the upper extension connecting posts is equal to the number of the lower extension connecting posts, and each upper extension connecting post is correspondingly provided with a lower extension connecting post. Each upper extension connecting post is provided with a clearance connecting through hole that runs vertically through the lower base.

[0027] The height-adjustable liquid heater also includes a plurality of connecting screws that can pass through the clearance connection through hole and connect to the threaded connection hole.

[0028] The height-adjustable liquid heater as described above further includes a removable baking tray disposed on the base and located above the heating module.

[0029] Compared with the prior art, the above application has the following advantages:

[0030] This application's height-adjustable liquid heater achieves electric adjustment of the kettle's position height through the coordinated action of a lifting drive assembly, connecting bracket, PCB board, and suspension assembly. Users can flexibly change the kettle's height according to their needs, enabling them to control the kettle's heating or stop heating when the kettle is suspended in the air. When the kettle is lifted to a high position by the lifting drive assembly, the baking space of the base is fully utilized, thereby increasing the amount of food that can be baked. This enhances the multifunctionality and practicality of the liquid heater, meets diverse user needs, and optimizes the user experience. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a perspective view of the height-adjustable liquid heater of this application.

[0033] Figure 2 This is a partial exploded view of the base of the height-adjustable liquid heater described in this application.

[0034] Figure 3 This is a cross-sectional view of the base of the height-adjustable liquid heater described in this application.

[0035] Figure 4 This is a perspective view of the base described in the height-adjustable liquid heater of this application.

[0036] Figure 5 This is a cross-sectional view of the left or right lifting drive assembly in the height-adjustable liquid heater of this application.

[0037] Figure 6 This is an exploded view of the suspension assembly described in the height-adjustable liquid heater of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0041] like Figures 1 to 6 As shown, an adjustable-height liquid heater includes a base 100 and a PCB board 200 disposed inside the base 100, a heating module 300 disposed on the base 100 and electrically connected to the PCB board 200 for heating by electricity, the adjustable-height liquid heater also includes a connecting bracket 400 spanning the upper side of the base 100, a suspension assembly 500 disposed on the upper side of the connecting bracket 400, a kettle 600 detachably connected to the suspension assembly 500, and a lifting drive assembly 700 disposed on the base 100 and connected to the connecting bracket 400 and electrically connected to the PCB board 200, the lifting drive assembly 700 being used to drive the connecting bracket 400 to move the suspension assembly 500 and the kettle 600 up and down to adjust the position height of the kettle 600.

[0042] The adjustable-height liquid heater of this application achieves electric adjustment of the height of the kettle 600 through the coordinated action of the lifting drive assembly 700, the connecting bracket 400, the PCB board 200, and the suspension assembly 500. Users can flexibly change the height of the kettle 600 according to their needs, so as to achieve the purpose of controlling the heating of the kettle 600 or stopping the heating when the kettle 600 is suspended. When the kettle 600 is lifted to a high position by the lifting drive assembly 700, the baking space of the base 100 is fully utilized, thereby increasing the amount of food that can be baked, thus improving the multifunctionality and practicality of the liquid heater, meeting the diverse needs of users, and optimizing the user experience.

[0043] Furthermore, the base 100 includes a lower base 11 and an upper base 13 disposed on the upper side of the lower base 11;

[0044] The lower base 11 has an internal cavity 111, and has an upper left opening 112 on its upper left side and an upper right opening 113 on its upper right side; the upper left opening 112 and the upper right opening 113 are both connected to the cavity 111.

[0045] The PCB board 200 is disposed within the accommodating cavity 111;

[0046] The lifting drive group 700 includes a left lifting drive group 71 and a right lifting drive group 72.

[0047] The lower end of the left lifting drive assembly 71 is located within the upper left opening 112 and electrically connected to the PCB board 200, while its upper end extends upward to connect with the lower left end of the connecting bracket 400. The lower end of the right lifting drive assembly 72 is located within the upper right opening 113 and electrically connected to the PCB board 200, while its upper end extends upward to connect with the lower right end of the connecting bracket 400. This application achieves smooth lifting of the connecting bracket 400 through the coordinated action of the left lifting drive assembly 71 and the right lifting drive assembly 72, ensuring the accuracy and stability of the kettle 600's height adjustment.

[0048] Furthermore, the upper left opening 112 and the upper right opening 113 are arranged symmetrically from left to right;

[0049] The left lifting drive group 71 and the right lifting drive group 72 are also arranged symmetrically from left to right.

[0050] Both the left lifting drive group 71 and the right lifting drive group 72 are multi-stage telescopic electric cylinders, and each includes a multi-stage telescopic rod and a drive motor. The extension and retraction of the multi-stage telescopic rod is controlled by the drive motor to achieve smooth lifting and lowering of the connecting bracket 400, ensuring that the height adjustment of the kettle 600 is accurate and stable.

[0051] Furthermore, the connecting bracket 400 is a hollow inverted U-shaped bend. This is intended to meet practical usage requirements.

[0052] Furthermore, the suspension assembly 500 includes a hook 51, an upper locking nut 52, and a lower locking nut 53; the hook 51 is located on the upper side of the connecting bracket 400, with its upper end extending upward through the connecting bracket 400, and has a connecting threaded portion 511 at its upper end; the upper locking nut 52 is connected to the connecting threaded portion 511 and is located on the upper side of the connecting bracket 400; the lower locking nut 53 is connected to the connecting threaded portion 511 and is located on the lower side of the upper locking nut 52, and is used to cooperate with the upper locking nut 52 to lock the hook 51.

[0053] This application achieves stable installation and position locking of the hook 51 on the connecting bracket 400 by passing through the connecting thread 511 of the hook 51 and cooperating with the double locking of the upper locking nut 52 and the lower locking nut 53, effectively preventing the hook 51 from loosening or displacing during the stress process, and improving the reliability and structural stability of the connection between the suspension assembly 500 and the connecting bracket 400.

[0054] Furthermore, the lower base 11 has an air inlet 114 in the middle of its lower side that communicates with the accommodating cavity 111;

[0055] The upper side of the accommodating cavity 111 is provided with a connecting opening 1111 located above the air inlet 114;

[0056] The upper base 13 has a communicating cavity 131 that communicates with the accommodating cavity 111, and a mounting slot 132 that communicates with the communicating cavity 131 in the middle of its upper side for mounting the heating module 300.

[0057] The upper base 13 has an outwardly protruding part 133 on its upper periphery, and an upwardly inclined surface 1331 on the lower side of the outwardly protruding part 133. An air outlet 1332 communicating with the communicating cavity 131 is opened on the upwardly inclined surface 1331.

[0058] The base 100 also includes an exhaust fan 12, which is disposed in the accommodating cavity 111, located between the air inlet 114 and the communicating opening 1111, and is electrically connected to the PCB board 200.

[0059] This application achieves efficient heat dissipation through the structural design of the lower base 11, exhaust fan 12, and upper base 13 of the base 100. The accommodating cavity 111 of the lower base 11 provides mounting space for the PCB board 200, and the air inlet 114 in the middle of its lower side is connected to the accommodating cavity 111, providing a channel for airflow. The exhaust fan 12 is located between the air inlet 114 and the connecting opening 1111 in the accommodating cavity 111 and is electrically connected to the PCB board 200, and can actively draw in external cold air from the air inlet 114. The connecting cavity 131 of the upper base 13 is connected to the accommodating cavity 111, allowing the airflow driven by the exhaust fan 12 to flow upward to the mounting slot 132 to dissipate heat from the mounted heating module 300. The upper base 13 has an upwardly inclined surface 1331 on the lower side of the protruding part on the upper periphery. The air outlet 1332 on the surface is connected to the cavity 131. The inclined air outlet 1332 helps to smoothly discharge the air after absorbing heat, forming a complete heat dissipation airflow path from bottom to top, which effectively improves the heat dissipation efficiency of the PCB board 200 and the heating module 300 during operation and ensures stable operation of the equipment.

[0060] Furthermore, the upward tilt angle of the upper inclined surface 1331 is in the range of 10° to 20°, preferably 15°, which is intended to accommodate hot air flowing out through the air outlet 1332.

[0061] Furthermore, the base 100 also includes a flow guide housing 14 disposed within the communicating cavity 131 and located below the mounting slot 132. The lower side of the flow guide housing 14 is connected to the lower base 11 and located outside the communicating opening 1111. It has a vertically penetrating flow guide channel 141 inside, and the upper side of the flow guide channel 141 has an outwardly inclined guide surface 1411 for guiding airflow out of the air outlet 1332. This application, by providing a flow guide housing 14 located below the mounting slot 132 within the communicating cavity 131, utilizes the outwardly inclined guide surface 1411 on the upper side of the flow guide channel 141 to effectively guide the airflow. This allows the airflow to be guided outwardly when it exits the air outlet 1332, improving the directionality and smoothness of the airflow, reducing turbulence and stagnation within the communicating cavity, and enhancing the overall airflow guiding effect.

[0062] Furthermore, the upper base 13 is also provided with a mounting bracket 134 located inside the communicating cavity 131. The mounting bracket 134 is provided with a mounting groove 132, and a downwardly extending connecting post 1341 located in the flow channel 141 on its lower side. There are multiple downward extending connecting posts 1341, which are spaced apart on the outside of the exhaust fan 12. Each downward extending connecting post 1341 is provided with a threaded connection hole.

[0063] The lower base 11 is also provided with an upper extension connecting post 115 located in the communicating opening 1111 and extending upward. The number of upper extension connecting posts 115 is equal to the number of lower extension connecting posts 1341, and each upper extension connecting post 115 is correspondingly provided with a lower extension connecting post 1341. Each upper extension connecting post 115 is provided with a clearance connecting through hole that runs vertically through the base.

[0064] The height-adjustable liquid heater also includes a plurality of connecting screws that can pass through the clearance connection through hole and connect to the threaded connection hole.

[0065] This application uses an upper base 13 to set a mounting bracket 134 located inside the communicating cavity 131, integrates the mounting slot 132 onto the mounting bracket 134, and sets multiple lower extension connecting posts 1341 that extend downward into the flow channel 141 and are spaced apart on the outside of the exhaust fan 12. These are combined with upper extension connecting posts 115 on the lower base 11 that extend upward into the communicating opening 1111 and correspond one-to-one with the number of lower extension connecting posts 1341. The upper extension connecting posts 115 are connected to the lower extension connecting posts 1341 by connecting screws passing through the clearance connecting through holes of the upper extension connecting posts 115 and threaded connecting holes of the lower extension connecting posts 1341. This achieves precise and stable assembly between the upper base 13 and the lower base 11, and also provides auxiliary support for the heating module 300.

[0066] Furthermore, the height-adjustable liquid heater also includes a detachable baking tray 800 disposed on the base 100 and located on the upper side of the heating module 300, the purpose of which is to bake food using the baking tray 800.

[0067] Furthermore, the heating module 300 includes a heating plate and a temperature sensor located on the underside of the heating plate. The PCB board 200 is equipped with a heating control circuit and a power switch. This technology is existing technology and will not be described in detail here.

[0068] The above description is one implementation method provided in conjunction with specific content, and does not imply that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to or identical to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A height-adjustable liquid heater, comprising a base (100) and a PCB board (200) disposed inside the base (100), and a heating module (300) disposed on the base (100) and electrically connected to the PCB board (200) for electrically heating, characterized in that, The height-adjustable liquid heater further includes a connecting bracket (400) spanning the upper side of the base (100), a suspension assembly (500) on the upper side of the connecting bracket (400), a kettle (600) detachably connected to the suspension assembly (500), and a lifting drive assembly (700) on the base (100) and connected to the connecting bracket (400) and electrically connected to the PCB board (200). The lifting drive assembly (700) is used to drive the connecting bracket (400) to move the suspension assembly (500) and the kettle (600) up and down to adjust the position height of the kettle (600).

2. The adjustable-height liquid heater according to claim 1, characterized in that, The base (100) includes a lower base (11) and an upper base (13) disposed on the upper side of the lower base (11); The lower base (11) has an internal cavity (111), and has an upper left opening (112) on its upper left side and an upper right opening (113) on its upper right side; the upper left opening (112) and the upper right opening (113) are both connected to the cavity (111). The PCB board (200) is disposed within the accommodating cavity (111); The lifting drive assembly (700) includes: The left lifting drive assembly (71) has its lower end located in the upper left opening (112) and electrically connected to the PCB board (200), and its upper end extends upward to connect to the lower left end of the connecting bracket (400). The right lifting drive assembly (72) has its lower end located in the upper right opening (113) and electrically connected to the PCB board (200), and its upper end extends upward to connect to the lower right end of the connecting bracket (400).

3. The adjustable-height liquid heater according to claim 2, characterized in that, The upper left opening (112) and the upper right opening (113) are arranged symmetrically from left to right; The left lifting drive group (71) and the right lifting drive group (72) are also arranged symmetrically.

4. The adjustable-height liquid heater according to claim 3, characterized in that, Both the left lifting drive group (71) and the right lifting drive group (72) are multi-stage telescopic electric cylinders.

5. The adjustable-height liquid heater according to claim 3, characterized in that, The connecting bracket (400) is a hollow inverted U-shaped bend.

6. The adjustable-height liquid heater according to claim 5, characterized in that, The suspension assembly (500) includes: A hook (51) is provided on the upper side of the connecting bracket (400), and its upper end extends upward through the connecting bracket (400), and a connecting thread (511) is provided at its upper end; The upper locking nut (52) is connected to the connecting threaded part (511) and is located on the upper side of the connecting bracket (400); The lower locking nut (53), which is connected to the connecting threaded part (511), is located below the upper locking nut (52) and is used to cooperate with the upper locking nut (52) to lock the hook (51).

7. The adjustable-height liquid heater according to claim 2, characterized in that, The lower base (11) has an air inlet (114) in the middle of its lower side that communicates with the accommodating cavity (111); The upper side of the accommodating cavity (111) is provided with a connecting opening (1111) located above the air inlet (114); The upper base (13) has a communicating cavity (131) that communicates with the accommodating cavity (111) and a mounting slot (132) that communicates with the communicating cavity (131) in the middle of its upper side for mounting the heating module (300). The upper base (13) has an outwardly protruding part (133) on its upper periphery, and an upwardly inclined surface (1331) is provided on the lower side of the outwardly protruding part (133). An air outlet (1332) communicating with the communicating cavity (131) is provided on the upwardly inclined surface (1331). The base (100) also includes an exhaust fan (12), which is disposed in the accommodating cavity (111), located between the air inlet (114) and the communicating opening (1111), and is electrically connected to the PCB board (200).

8. The adjustable-height liquid heater according to claim 7, characterized in that, The base (100) also includes a flow guide housing (14) disposed in the communicating cavity (131) and located below the mounting groove (132). The lower side of the flow guide housing (14) is connected to the lower base (11) and located outside the communicating opening (1111). The flow guide housing (14) is provided with a vertically penetrating flow guide channel (141). The upper side of the flow guide channel (141) is provided with an outwardly inclined flow guide surface (1411) for guiding airflow out of the air outlet (1332).

9. The adjustable-height liquid heater according to claim 8, characterized in that, The upper base (13) is also provided with a mounting bracket (134) located inside the communicating cavity (131). The mounting bracket (134) is provided with the mounting groove (132) and a lower extension connecting post (1341) extending downward and located in the flow channel (141) on its lower side. There are multiple lower extension connecting posts (1341) and they are spaced apart on the outside of the exhaust fan (12). Each lower extension connecting post (1341) is provided with a threaded connection hole. The lower base (11) is also provided with an upper extension connecting post (115) located in the communicating opening (1111) and extending upward. The number of the upper extension connecting posts (115) is equal to the number of the lower extension connecting posts (1341), and each upper extension connecting post (115) is correspondingly provided with the lower extension connecting post (1341). Each upper extension connecting post (115) is provided with a clearance connecting through hole that runs vertically through the lower base. The height-adjustable liquid heater also includes a plurality of connecting screws that can pass through the clearance connection through hole and connect to the threaded connection hole.

10. The height-adjustable liquid heater according to claim 1, characterized in that, The height-adjustable liquid heater also includes a removable baking tray (800) disposed on the base (100) and located on the upper side of the heating module (300).

Images