Electric heating product with multiple filtering systems

Abstract

The utility model discloses an electric heating product with multiple filtering systems, which comprises a shell, a heating system arranged in the shell and used for heating fluid and a fluid system used for controlling the fluid to enter and be discharged from the heating system, and the heating system comprises an electric heating main body and an electric heating tube arranged on the electric heating main body. A water inlet and a steam outlet are respectively formed in two ends of the electric heating main body; the interior of the electric heating body is divided into at least two channels through partition plates, each channel is communicated with the water inlet and the steam outlet, and each channel is filtered through a filtering device. The structure of the electric heating body is optimized, the design of multiple filtering channels is adopted, even if one channel is blocked, fluid can still pass through the other channels, and therefore the blocking risk of a filtering system is effectively reduced, and the service life of an electric heating product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to a multi-filtration system electric heating product that can be used in household appliances such as steam ovens, steam ovens, and range hoods. Background Technology

[0002] Traditional electric steam heating products on the market are prone to scale buildup when heating liquids, especially in northern regions with high water hardness. This can lead to internal blockages and damage, affecting the product's lifespan. Blockage in the steam outlet pipe can also cause increased internal pressure in the heating element, potentially resulting in explosions and other safety issues.

[0003] To solve the above technical problems, existing technologies often involve installing a filter screen at the steam outlet. However, users have found in actual use that if the steam generator filter screen is too small, scale will completely clog the screen, causing the steam generator to malfunction and resulting in the same problem.

[0004] Therefore, it is necessary to improve existing electric heating products. Utility Model Content

[0005] The purpose of this invention is to provide an electric heating product with a multi-filtration system. This invention optimizes the structure of the electric heating element and adopts a multi-filtration channel design. Even if one channel is blocked, the fluid can still pass through the other channels, thereby more effectively reducing the risk of filtration system blockage and extending the service life of the electric heating product.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-filtration system electric heating product, comprising a shell, a heating system disposed within the shell for heating fluid, and a fluid system for controlling the entry and exit of fluid into and out of the heating system. The heating system includes an electric heating body and an electric heating tube disposed on the electric heating body. The electric heating body has a water inlet and a steam outlet at both ends. The electric heating body is divided into at least two channels by a partition, each channel being connected to the water inlet and the steam outlet, and each channel being filtered by a filtration device.

[0007] By adopting the above technical solution, the electric heating element is structurally optimized and a multi-filtration channel design is used. Even if one channel is blocked, the fluid can still pass through the other channels, thereby more effectively reducing the risk of filtration system blockage and extending the service life of electric heating products.

[0008] The present invention is further configured such that there are two channels, namely a first channel and a second channel. The two ends of the first channel are connected to the water inlet and the steam outlet, respectively. A first filter device is provided between the first channel and the steam outlet. The partition plate is also provided with a flow hole connecting the first channel and the second channel. A second filter device is installed on the flow hole. The second channel is connected to the steam outlet.

[0009] By adopting the above technical solution, which is an implementation of the multi-filtration channel design, a dual-filtration channel design is adopted. Even if the first channel is blocked, the fluid can still pass through the second channel, effectively reducing the risk of filtration system blockage while reducing production costs.

[0010] The present invention is further configured such that the first filtration device includes a filter cylinder, the filter cylinder is disposed at the inner end of the steam outlet, and the side of the filter cylinder is provided with a side opening communicating with the steam outlet. The surface of the filter cylinder is distributed with a plurality of filter holes for allowing fluid in the first channel to enter the filter cylinder.

[0011] By adopting the above technical solution, the porous filter cartridge can not only achieve high-efficiency filtration, but also be very convenient to process and assemble.

[0012] The present invention is further configured such that the surface of the filter cartridge is provided with a plurality of outwardly protruding drainage portions, the protruding surfaces of the drainage portions are spherical, and the drainage portions are also provided with the filter holes.

[0013] By adopting the above technical solution, the flow guide can flush impurities onto the filter cartridge, while the filter holes on the flow guide can always allow fluid to pass through, thereby effectively avoiding clogging.

[0014] The present invention is further configured such that the filter cartridge is made of a non-metallic material.

[0015] By adopting the above-mentioned technical solutions, such as using high-temperature resistant and corrosion-resistant plastic materials, solid impurities are less likely to adhere to the surface, thereby further preventing the filter cartridge from becoming clogged.

[0016] The present invention is further configured such that the filter cartridge passes through the partition and extends into the second channel, and the side of the filter cartridge is also provided with a confluence port for connecting the second channel with the interior of the filter cartridge.

[0017] By adopting the above technical solution, the internal space of the filter cartridge serves as a common channel for the first and second channels, and the steam outlet is accessed through the common channel, which greatly facilitates the assembly of the first filtration device.

[0018] The present invention is further configured such that the second filtration device includes a fan wheel and a wheel axle disposed at the center of the fan wheel, the fan wheel is rotatably disposed in the first channel, the wheel axle is rotatably disposed in the flow hole, and the wheel axle and the flow hole are in clearance fit.

[0019] By adopting the above technical solution, the fluid in the first channel can drive the fan wheel and the axle to rotate, and the fluid enters the second channel through the gap between the axle and the flow hole, and this gap can prevent solid impurities from passing through.

[0020] The present invention is further configured such that the water inlet of the electric heating body is oriented towards the fan wheel.

[0021] By adopting the above technical solution, the fluid impact on the fan wheel rotation can be effectively utilized to ensure that the gap between the wheel axle and the flow hole can always allow fluid to pass through.

[0022] The present invention is further configured such that the fluid system includes a pump, an inlet pipe, an outlet pipe, and a steam outlet pipe. The pump is installed inside the housing. The inlet end and outlet end of the pump are respectively connected to the inlet pipe and the outlet pipe. The end of the outlet pipe away from the pump is connected to the water inlet of the electric heating body. One end of the steam outlet pipe is connected to the steam outlet of the electric heating body.

[0023] By adopting the above technical solutions, a stable and efficient fluid supply can be achieved.

[0024] The present invention is further configured such that one end of the steam outlet pipe extends into the first channel of the electric heating body, and the steam outlet pipe is fixedly connected to the electric heating body.

[0025] By adopting the above technical solution, its integrated design eliminates the risk of external connection loosening under stress.

[0026] The present invention is further configured to include a temperature control system disposed on the electric heating body. The temperature control system includes a temperature acquisition device, a first over-temperature protector, and a second over-temperature protector. After the temperature acquisition device acquires the temperature, it controls the start and stop of the pump through the electronic control system. The first over-temperature protector and the second over-temperature protector are used to protect the heating system when the temperature exceeds the set value.

[0027] By adopting the above technical solution, it employs temperature acquisition over-temperature protection and dual mechanical over-temperature protection to achieve the purpose of triple over-temperature protection. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the installation structure of the first filtration device of this utility model;

[0030] Figure 3 This is a schematic diagram of the installation structure of the second filter device of this utility model.

[0031] In the picture:

[0032] 1. Outer shell; 2. Heating system; 3. Fluid system; 4. Electric heating element; 5. Electric heating tube; 6. Water inlet; 7. Steam outlet; 8. Baffle; 9. First channel; 10. Second channel; 11. First filter device; 12. Flow hole; 13. Second filter device; 14. Filter cartridge; 15. Side opening; 16. Filter hole; 17. Drainage part; 18. Manifold; 19. Fan wheel; 20. Wheel axle; 21. Pump; 22. Water inlet pipe; 23. Water outlet pipe; 24. Steam outlet pipe; 25. Temperature control system; 26. Temperature acquisition device; 27. First over-temperature protector; 28. Second over-temperature protector. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example: As attached Figures 1-3 The illustrated multi-filtration system electric heating product includes a housing 1, a heating system 2 disposed within the housing 1 for heating fluid, and a fluid system 3 for controlling the entry and exit of fluid into and out of the heating system 2. The heating system 2 includes an electric heating body 4 and electric heating tubes 5 disposed on the electric heating body 4. The electric heating body 4 has a water inlet 6 and a steam outlet 7 at its two ends. At least two channels are separated within the electric heating body 4 by a partition 8. Each channel is connected to both the water inlet 6 and the steam outlet 7, and each channel is filtered by a filtration device. This multi-filtration channel design ensures that even if one channel becomes blocked, fluid can still pass through the remaining channels, thereby more effectively reducing the risk of filtration system blockage and extending the service life of the electric heating product.

[0035] This embodiment specifically uses a dual-filtration channel as an example: There are two channels, namely a first channel 8 and a second channel 9. Specifically, the electric heating body 4 is divided into a first channel 9 and a second channel 10 by a partition 8, with the first channel 9 on top and the second channel 10 on the bottom. The two ends of the first channel 9 are connected to the water inlet 6 and the steam outlet 7, respectively. A first filter device 11 is provided between the first channel 9 and the steam outlet 7. The partition 8 also has a flow hole 12 connecting the first channel 9 and the second channel 10. A second filter device 13 is installed on the flow hole 12, and the second channel 10 is connected to the steam outlet 7. This dual-filtration channel design ensures that even if the first channel 9 becomes blocked, fluid can still pass through the second channel 10, effectively reducing the risk of filtration system blockage while lowering production costs.

[0036] It should be noted that the channel can also have 3, 4, or 5 channels, each equipped with a filter device for filtration, and can be designed according to needs.

[0037] For the two sets of filtration devices, where:

[0038] The structure of the first filtration device 11 is shown in the attached figure. Figure 2 As shown:

[0039] The first filtration device 11 includes a filter cartridge 14, which is disposed inside the steam outlet 7. The filter cartridge 14 has a side opening 15 that communicates with the steam outlet 7. The surface of the filter cartridge 14 is distributed with a plurality of filter holes 16 for allowing fluid in the first channel 9 to enter the filter cartridge 14. The use of a porous filter cartridge 14 not only achieves high-efficiency filtration, but also makes processing and assembly very convenient.

[0040] The filter cartridge 14 has multiple outwardly protruding flow guides 17 distributed on its surface. The flow guides 17 and the filter cartridge 14 are integrally formed. The protruding surfaces of the flow guides 17 are spherical, and the flow guides 17 are also provided with filter holes 16. The flow guides 17 can flush impurities onto the filter cartridge 14, while the filter holes 16 on the flow guides 17 can always allow fluid to pass through, thereby effectively preventing clogging.

[0041] The filter cartridge 14 is made of non-metallic materials. For example, using a high-temperature resistant and corrosion-resistant plastic material makes it less likely for solid impurities to adhere to its surface, thereby further preventing the filter cartridge 14 from becoming clogged.

[0042] The filter cartridge 14 passes through the partition 8 and extends into the second channel 10. The side of the filter cartridge 14 is also provided with a confluence port 18 for connecting the second channel 10 and the interior of the filter cartridge 14. The interior space of the filter cartridge 14 serves as a common channel for the first channel 9 and the second channel 10, and the steam outlet 7 is accessed through the common channel, which greatly facilitates the assembly of the first filtration device 11.

[0043] The structure of the first filtration device 11 is shown in the attached figure. Figure 3 As shown:

[0044] The second filtration device 13 includes a fan wheel 19 and a wheel axle 20 disposed at the center of the fan wheel 19. The two are integral structures or welded together. The fan wheel 19 is rotatably disposed in the first channel 9, and the wheel axle 20 is rotatably disposed in the flow hole 12. The wheel axle 20 and the flow hole 12 are in clearance fit. The wheel axle 20 can be supported against the lower surface of the second channel 10. The fluid in the first channel 9 can drive the fan wheel 19 and the wheel axle 20 to rotate. The fluid enters the second channel 10 through the gap between the wheel axle 20 and the flow hole 12, and this gap can prevent solid impurities from passing through.

[0045] The water inlet 6 of the electric heating body 4 is positioned facing the fan wheel 19, allowing the fluid to directly impact the fan wheel 19. This effectively utilizes the fluid impact to rotate the fan wheel 19, ensuring that the gap between the wheel axle 20 and the flow hole 12 can always allow fluid to pass through.

[0046] Additionally, as attached Figure 1 As shown, the fluid system 3 includes a pump 21, an inlet pipe 22, an outlet pipe 23, and a steam outlet pipe 24. The pump 21 can be mounted inside the housing 1 via a bracket. The inlet and outlet ends of the pump 21 are connected to the inlet pipe 22 and the outlet pipe 23, respectively. The end of the outlet pipe 23 away from the pump 21 is connected to the inlet 6 of the electric heating body 4, which can be connected by an interference fit. One end of the steam outlet pipe 24 is connected to the steam outlet 7 of the electric heating body 4. This achieves a stable and efficient supply of fluid.

[0047] As attached Figure 1 As shown, one end of the steam outlet pipe 24 extends into the first channel 9 of the electric heating body 4 and is connected to the filter cartridge 14. The steam outlet pipe 24 is fixedly connected to the electric heating body 4, and can be welded or integrally processed. Its integral design eliminates the risk of the steam outlet pipe 24 becoming loose due to excessive pressure.

[0048] As attached Figure 1As shown, the electric heating product also includes a temperature control system 25 installed on the electric heating body 4. The temperature control system 25 includes a temperature acquisition device 26 (temperature sensor), a first over-temperature protector 27, and a second over-temperature protector 28. The temperature acquisition device 26 acquires the temperature and then uses an electronic control system (which can be a PLC) to start and stop the pump 21. The temperature acquisition device 26, the electronic control system, and the pump 21 are connected together by wires. The first over-temperature protector 27 and the second over-temperature protector 28 protect the heating system 2 from exceeding the set temperature. The first over-temperature protector 27 and the second over-temperature protector 28 are connected to the electronic control system by wires. When the temperature exceeds the set point, the electronic control system controls the power supply to cut off the power. It employs temperature acquisition over-temperature protection and dual mechanical over-temperature protection to achieve triple over-temperature protection.

Claims

1. A multi-filtration system electric heating product, comprising a housing (1), a heating system (2) disposed within the housing (1) for heating fluid, and a fluid system (3) for controlling the entry and exit of fluid into and out of the heating system (2), wherein the heating system (2) comprises an electric heating body (4) and an electric heating tube (5) disposed on the electric heating body (4), and the electric heating body (4) is provided with a water inlet (6) and a steam outlet (7) at both ends; characterized in that: The electric heating body (4) is divided into at least two channels by a partition (8). Each channel is connected to the water inlet (6) and the steam outlet (7), and each channel is filtered by a filter device.

2. The electric heating product with a multi-filtration system according to claim 1, characterized in that: There are two channels, namely a first channel (9) and a second channel (10). The two ends of the first channel (9) are connected to the water inlet (6) and the steam outlet (7) respectively. A first filter device (11) is provided between the first channel (9) and the steam outlet (7). The partition (8) is also provided with a flow hole (12) connecting the first channel (9) and the second channel (10). A second filter device (13) is installed on the flow hole (12). The second channel (10) is connected to the steam outlet (7).

3. The electric heating product for a multi-filtration system according to claim 2, characterized in that: The first filtration device (11) includes a filter cylinder (14), which is disposed at the inner end of the steam outlet (7), and the side of the filter cylinder (14) is provided with a side opening (15) that communicates with the steam outlet (7). The surface of the filter cylinder (14) is provided with a plurality of filter holes (16) for allowing the fluid in the first channel (9) to enter the filter cylinder (14).

4. The electric heating product with a multi-filtration system according to claim 3, characterized in that: The filter cartridge (14) has multiple outwardly protruding drainage portions (17) distributed on its surface. The protruding surface of the drainage portion (17) is spherical, and the drainage portion (17) is also provided with the filter holes (16).

5. The electric heating product for a multi-filtration system according to claim 3, characterized in that: The filter cartridge (14) passes through the partition (8) and extends into the second channel (10). The side of the filter cartridge (14) is also provided with a confluence port (18) for connecting the second channel (10) with the inside of the filter cartridge (14).

6. The electric heating product for a multi-filtration system according to claim 2, characterized in that: The second filter device (13) includes a fan wheel (19) and a wheel axle (20) disposed at the center of the fan wheel (19). The fan wheel (19) is rotatably disposed in the first channel (9), and the wheel axle (20) is rotatably disposed in the flow hole (12). The wheel axle (20) and the flow hole (12) are in clearance fit.

7. The electric heating product with a multi-filtration system according to claim 6, characterized in that: The water inlet (6) of the electric heating body (4) is positioned facing the fan wheel (19).

8. The electric heating product for a multi-filtration system according to claim 1, characterized in that: The fluid system (3) includes a pump (21), an inlet pipe (22), an outlet pipe (23), and a steam outlet pipe (24). The pump (21) is installed inside the outer casing (1). The inlet end and outlet end of the pump (21) are connected to the inlet pipe (22) and the outlet pipe (23) respectively. The end of the outlet pipe (23) away from the pump (21) is connected to the inlet (6) of the electric heating body (4). One end of the steam outlet pipe (24) is connected to the steam outlet (7) of the electric heating body (4).

9. The electric heating product for a multi-filtration system according to claim 8, characterized in that: One end of the steam outlet pipe (24) extends into the first channel (9) of the electric heating body (4), and the steam outlet pipe (24) is fixedly connected to the electric heating body (4).

10. The electric heating product for a multi-filtration system according to claim 8, characterized in that: It also includes a temperature control system (25) installed on the electric heating body (4). The temperature control system (25) includes a temperature acquisition device (26), a first over-temperature protector (27), and a second over-temperature protector (28). The temperature acquisition device (26) collects the temperature and then controls the start and stop of the pump (21) through the electronic control system. The first over-temperature protector (27) and the second over-temperature protector (28) are used to protect the heating system (2) when the temperature exceeds the set value.

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