Heater

Abstract

The utility model relates to the technical field of electric appliances, and discloses a heater, which comprises a first shell, a heating pipe, a temperature controller and a fuse, a water inlet pipe and a water outlet pipe communicated with an inner cavity of the first shell are arranged on the first shell; the heating pipe is arranged in the first shell, the end of the heating pipe extends out of the first shell, and the heating pipe is of a U-shaped structure. The temperature controller and the fuse are arranged on the first shell; the end part of the heating pipe is connected to an external heating circuit through a temperature controller and a fuse; the temperature controller has an off state when the temperature of the first shell is higher than or equal to a first preset temperature and an on state when the temperature of the first shell is lower than the first preset temperature. The problems that an existing heater is usually large in size, hot water or steam is discharged for a long time, and user experience is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a heater. Background Technology

[0002] The demand for hot water and steam heaters in cleaning appliances is increasing. As the overall development of appliances tends to be smaller, thinner, and more convenient, the installation space requirements for heater components are smaller.

[0003] In related technologies, the heaters are usually large in size, and the time to produce hot water or steam is long, which affects the user experience. Utility Model Content

[0004] In view of this, the present invention provides a heater to solve the problem that existing heaters are usually large in size and take a long time to produce hot water or steam, which affects the user experience.

[0005] This utility model provides a heater, including: a first housing, a heating tube, a thermostat and a fuse; the first housing is provided with an inlet pipe and an outlet pipe communicating with its inner cavity;

[0006] The heating tube is disposed inside the first housing, with its end extending to the outside of the first housing, and the heating tube has a U-shaped structure;

[0007] Both the thermostat and the fuse are mounted on the first housing.

[0008] The end of the heating element is connected to an external heating circuit via the thermostat and the fuse; the thermostat has an open state when the temperature of the first housing is higher than or equal to a first preset temperature, and an open state when the temperature of the first housing is lower than the first preset temperature.

[0009] In one alternative embodiment, the volume ratio of the heating element to the first housing is 20%-70%.

[0010] In one alternative embodiment, one end of the heating tube extending into the first housing is arranged in a U-shape in the vertical direction.

[0011] In an alternative embodiment, fins are also included, which are fitted onto the heating tube.

[0012] In one alternative embodiment, the fins are provided with a plurality of flow holes.

[0013] In one alternative implementation, the inlet pipe and the outlet pipe are L-shaped.

[0014] In one alternative embodiment, a temperature sensor and a control board are also included. The temperature sensor is disposed on the first housing and is electrically connected to an external heating circuit via the control board.

[0015] In one optional embodiment, the first housing is provided with an inlet for connecting the water inlet pipe and an outlet for connecting the water outlet pipe, wherein the diameter of the outlet is smaller than the diameter of the inlet.

[0016] In one optional embodiment, the device further includes a bracket, which is detachably connected to the first housing. The bracket has a first groove and a second groove corresponding to the thermostat and the fuse, respectively, and the thermostat and the fuse are respectively embedded in the first groove and the second groove.

[0017] In one alternative embodiment, a second housing is further included, which covers the outside of the first housing, and the inner sidewall of the second housing is provided with a third groove and a fourth groove for mounting the thermostat and the fuse.

[0018] The technical solution of this utility model has the following advantages:

[0019] 1. This utility model can be applied to hot water or steam output. By adopting a U-shaped heating tube, the heat exchange area is increased, improving the efficiency of hot water and steam output. While ensuring sufficient heating efficiency, the volume of the first shell can be reduced, so that the heating tube and the first shell maintain a suitable volume ratio, thereby reducing the overall size, achieving better heat transfer effect, and improving the user experience. It can be used to output hot water or steam in different electrical equipment. Its structure is compact, occupies less installation space, and has a wide range of applications.

[0020] 2. This utility model uses a thermostat and a fuse to provide protection when the temperature is too high, thereby improving safety. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a first structural schematic diagram of a heater according to an embodiment of the present utility model;

[0023] Figure 2 for Figure 1Sectional view of AA;

[0024] Figure 3 This is a second structural schematic diagram of a heater according to an embodiment of the present utility model;

[0025] Figure 4 This is a third structural schematic diagram of a heater according to an embodiment of the present utility model;

[0026] Figure 5 for Figure 4 The diagram shows the structure of the fins.

[0027] Figure 6 This is a fourth structural schematic diagram of a heater according to an embodiment of the present utility model;

[0028] Figure 7 This is a fifth structural schematic diagram of a heater according to an embodiment of the present utility model;

[0029] Figure 8 This is a sixth structural schematic diagram of a heater according to an embodiment of the present utility model;

[0030] Figure 9 This is the seventh structural schematic diagram of a heater according to an embodiment of the present utility model.

[0031] Figure 10 for Figure 9 The image shows a cross-sectional view of a heater.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. First housing; 2. Heating element; 3. Thermostat; 4. Fuse; 5. Inlet pipe; 6. Outlet pipe; 7. Fin; 8. Flow hole; 9. Temperature sensor; 10. Bracket; 11. First tank; 12. Second tank; 13. Second housing; 14. Third tank; 15. Fourth tank; 16. Slot; 17. Cover; 18. Flange; 19. Screw. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0037] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] The following is combined Figures 1 to 10 The following describes embodiments of the present invention.

[0039] According to an embodiment of the present invention, a heater is provided, comprising: a first housing 1, a heating tube 2, a thermostat 3, and a fuse 4; the first housing 1 is provided with an inlet pipe 5 and an outlet pipe 6 communicating with its inner cavity; the heating tube 2 is disposed inside the first housing 1, with its end extending to the outside of the first housing 1, and the heating tube 2 has a U-shaped structure; the thermostat 3 and the fuse 4 are both disposed on the first housing 1; the end of the heating tube 2 is connected to an external heating circuit through the thermostat 3 and the fuse 4; the thermostat 3 has an open state when the temperature of the first housing 1 is higher than or equal to a first preset temperature, and an open state when the temperature of the first housing 1 is lower than the first preset temperature.

[0040] It should be noted that the thermostat 3 can be an existing thermostat 3. The thermostat 3 is equipped with a bimetallic strip, and the on / off state is controlled by heating and deforming the bimetallic strip. When applied to steam output, the water in the inner cavity of the first housing 1 is at a preset height from the top to facilitate steam discharge.

[0041] In this embodiment, it can be applied to producing hot water or steam. Heating is achieved by using a heating tube 2 installed in the first housing 1. The heating tube 2 has a U-shaped structure, increasing the heat exchange area between the heating tube 2 and the water inside the cavity of the first housing 1, thus improving the efficiency of producing hot water and steam. The U-shaped heating tube 2 ensures sufficient heating efficiency while reducing the volume of the first housing 1, maintaining a suitable volume ratio between the heating tube 2 and the first housing 1, thereby reducing the overall size, achieving better heat transfer, and improving the user experience. During heating, water enters through the inlet pipe 5, is heated to hot water or steam, and then flows out through the outlet pipe 6. Simultaneously, during operation, since the thermostat 3 is installed on the first housing 1, the temperature of the first housing 1 can be transferred to the thermostat 3. When the temperature inside the first housing 1 exceeds the set temperature... When the temperature rises and exceeds or reaches the first preset temperature, causing the temperature inside the thermostat 3 to exceed or reach its preset temperature threshold, the bimetallic strip inside the thermostat 3 deforms and disconnects the circuit in time, preventing the water inside the first housing 1 from drying out and continuing to heat, which could lead to damage. When the temperature inside the first housing 1 drops below the first preset temperature, the bimetallic strip inside the thermostat 3 returns to its original state and becomes conductive, allowing the external heating circuit and heating tube 2 to continue heating. When the thermostat 3 malfunctions and cannot be controlled, the temperature of the first housing 1 continues to rise and is transmitted to the fuse 4 until the thermistor inside the fuse 4 melts and disconnects the circuit, further providing protection and improving safety. It can be used to produce hot water or steam in different electrical appliances, has a compact structure, occupies little installation space, and has a wide range of applications.

[0042] Specifically, the thermostat 3 and the fuse 4 are attached to the side wall of the first housing 1 to facilitate sensing the temperature transmitted by the first housing 1.

[0043] In one embodiment, the volume ratio of the heating tube 2 to the first housing 1 is 20%-70%.

[0044] In this embodiment, by controlling the volume ratio of the heating tube 2 to the first housing 1 to be between 20% and 70%, the heating efficiency and overall size are ensured. Preferably, the volume ratio of the heating tube 2 to the first housing 1 can be 50%.

[0045] Specifically, the inner cavity of the first housing 1 has a cross-sectional thickness of 7mm-25mm, a width of 15mm-30mm, and a total length of 35mm-70mm. The center distance between the water inlet pipe 5 and the water outlet pipe 6 is 25mm-60mm, ensuring the compactness of the overall structure, reducing the installation space, making the overall volume small, and improving the heating efficiency by transferring heat quickly.

[0046] In one embodiment, such as Figure 3 As shown, the heating tube 2 is arranged in a U-shape in the vertical direction.

[0047] In this embodiment, by bending the heating tube 2 upwards again, the length of the heating tube 2 is increased, while not occupying a large space, thereby further improving the heating efficiency.

[0048] In one embodiment, such as Figure 4 As shown, the heater also includes fins 7, which are sleeved on the heating tube 2.

[0049] In this embodiment, heat exchange effect and heating efficiency are further improved by setting fins 7 on the heating tube 2 for heat dissipation.

[0050] In one embodiment, such as Figure 5 As shown, the fin 7 is provided with multiple flow holes 8.

[0051] In this embodiment, by providing flow holes 8 on the fins 7, the flow of hot water or steam is facilitated.

[0052] In one embodiment, such as Figure 3 , Figure 4 and Figure 10 As shown, the inlet pipe 5 and the outlet pipe 6 are L-shaped.

[0053] In this embodiment, the inlet pipe 5 and the outlet pipe 6 are set in an L-shape to reduce the space occupied and thus reduce the overall size.

[0054] In one embodiment, such as Figure 6 and Figure 7 As shown, the heater also includes a temperature sensor 9 and a control board. The temperature sensor 9 is mounted on the first housing 1 and is electrically connected to an external heating circuit via the control board.

[0055] In this embodiment, a temperature sensor 9 is set to detect the internal temperature of the first housing 1 and feed it back to the control board, so that the control board can regulate the temperature of the heating tube 2 by controlling the current of the external heating circuit.

[0056] Specifically, temperature sensor 9 is an NTC sensor.

[0057] In one embodiment, the first housing 1 is provided with an inlet for connecting the water inlet pipe 5 and an outlet for connecting the water outlet pipe 6, the diameter of the outlet being smaller than the diameter of the inlet.

[0058] In this embodiment, by setting the outlet diameter to be smaller than the inlet diameter, back pressure is formed at the outlet when steam is emitted, thereby improving the visual effect of the emitted steam.

[0059] As an alternative implementation, the first housing 1 may have an inlet for connecting to the inlet pipe 5 and an outlet for connecting to the outlet pipe 6, with the diameter of the outlet equal to the diameter of the inlet. When used for hot water output, the diameter of the outlet is set to be equal to the diameter of the inlet to ensure normal hot water flow and guarantee the efficiency of hot water output.

[0060] In one embodiment, such as Figures 6 to 8 As shown, the heater also includes a bracket 10, which is detachably connected to the first housing 1. The bracket 10 is provided with a first groove 11 and a second groove 12 corresponding to the thermostat 3 and the fuse 4, respectively. The thermostat 3 and the fuse 4 are respectively embedded in the first groove 11 and the second groove 12.

[0061] In this embodiment, a bracket 10 is provided, and a first groove 11 and a second groove 12 are provided on the bracket 10. During installation, the thermostat 3 and the fuse 4 are respectively embedded in the first groove 11 and the second groove 12 and clamped between the bracket 10 and the first housing 1, which facilitates installation and disassembly.

[0062] Specifically, such as Figure 6 and Figure 7 As shown, the bracket 10 is also provided with a slot 16 for snapping in the temperature sensor 9.

[0063] Specifically, the bracket 10 is connected to the first housing 1 by screws 19, which facilitates installation and disassembly.

[0064] As a possible implementation method, it can also be, for example... Figure 9 and Figure 10 As shown, the heater also includes a second housing 13, which covers the outside of the first housing 1, and the inner wall of the second housing 13 is provided with a third groove 14 and a fourth groove 15 for mounting the thermostat 3 and the fuse 4.

[0065] In this embodiment, by providing a second housing 13 to cover the outside of the first housing 1, it is convenient to install the thermostat 3 and the fuse 4, while also serving as a flame retardant and insulating barrier, preventing the metal parts of the first housing 1 from being exposed, thus providing insulation and protection.

[0066] Specifically, such as Figure 10 As shown, the second housing 13 includes an upper housing and a lower housing that can be detachably connected to each other, specifically by screws 19 for easy installation and disassembly.

[0067] Specifically, such as Figures 6 to 8 As shown, the two ends of the first housing 1 are sealed by a cover 17 and a flange 18 respectively. The flange 18 has an opening corresponding to the end of the heating tube 2 for easy installation and disassembly.

[0068] Specifically, the cover 17, flange 18, inlet pipe 5 and outlet pipe 6 are all brazed to the first housing 1 with nickel-based alloy to improve sealing and connection strength.

[0069] Specifically, a liquid level sensor is installed in the inner cavity of the first housing 1, or a transparent observation window is installed on the first housing 1, so that when applied to a steam-producing scenario, a pre-set space is always left at the top of the inner cavity of the first housing 1 to facilitate the discharge of steam.

[0070] In one embodiment, the heater can be applied to a floor scrubber, specifically as follows: Figure 9 and Figure 10 .

[0071] The heater provided in this embodiment operates on the following principle: it can be used to produce hot water or steam. Heating is achieved by using a heating tube 2 installed in the first housing 1. The heating tube 2 has a U-shaped structure, is bent vertically, and has added fins 7 to increase the heat exchange area between the heating tube 2 and the water inside the cavity of the first housing 1. A suitable volume ratio between the heating tube 2 and the first housing 1 is maintained to improve the efficiency of producing hot water and steam. The U-shaped heating tube 2 ensures sufficient heating efficiency while reducing the volume of the first housing 1, thus lowering the overall size. The overall structure is compact and lightweight, with fast heat transfer, achieving better heating effects and improving the user experience. During heating, water enters through the inlet pipe 5, is heated to hot water or steam, and then flows out through the outlet pipe 6. Simultaneously, during operation, the thermostat 3, fuse 4, and temperature sensor 9 work together to regulate and protect the heater, improving safety. This solves the problem that existing heaters are typically large in size and have long hot water or steam production times, affecting the user experience.

[0072] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A heater characterized by, include: The first housing (1), heating tube (2), thermostat (3) and fuse (4); the first housing (1) is provided with an inlet pipe (5) and an outlet pipe (6) communicating with its inner cavity; The heating tube (2) is disposed inside the first housing (1), and its end extends to the outside of the first housing (1), and the heating tube (2) has a U-shaped structure; The thermostat (3) and the fuse (4) are both mounted on the first housing (1); The end of the heating tube (2) is connected to an external heating circuit through the thermostat (3) and the fuse (4); the thermostat (3) has an open state when the temperature of the first housing (1) is higher than or equal to the first preset temperature, and an open state when the temperature of the first housing (1) is lower than the first preset temperature.

2. The heater according to claim 1, characterized in that, The volume ratio of the heating tube (2) to the first housing (1) is 20%-70%.

3. The heater according to claim 1, characterized in that, The heating tube (2) is arranged in a U-shape at one end that extends into the first housing (1) in the vertical direction.

4. The heater according to claim 1, characterized in that, It also includes fins (7), which are sleeved on the heating tube (2).

5. The heater according to claim 4, characterized in that, The fin (7) is provided with multiple flow holes (8).

6. The heater according to claim 1, characterized in that, The inlet pipe (5) and the outlet pipe (6) are L-shaped.

7. The heater according to claim 1, characterized in that, It also includes a temperature sensor (9) and a control board. The temperature sensor (9) is disposed on the first housing (1) and is electrically connected to an external heating circuit through the control board.

8. The heater according to claim 1, characterized in that, The first housing (1) is provided with an inlet for connecting the water inlet pipe (5) and an outlet for connecting the water outlet pipe (6), the diameter of the outlet being smaller than the diameter of the inlet.

9. The heater according to any one of claims 1 to 8, characterized in that, It also includes a bracket (10), which is detachably connected to the first housing (1). The bracket (10) is provided with a first groove (11) and a second groove (12) corresponding to the thermostat (3) and the fuse (4), respectively. The thermostat (3) and the fuse (4) are respectively embedded in the first groove (11) and the second groove (12).

10. The heater according to any one of claims 1 to 8, characterized in that, It also includes a second housing (13), which covers the outside of the first housing (1), and the inner wall of the second housing (13) is provided with a third groove (14) and a fourth groove (15) for installing the thermostat (3) and the fuse (4).

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