Water inlet module and dish washing machine

Abstract

The invention relates to the field of household appliances, and discloses a water inlet module and a dishwasher, and the water inlet module comprises a water softener which is provided with a water inlet and a water outlet which are communicated with the interior; a heating runner is arranged in the heater, a heating source is arranged in the heating runner, a water inlet and a pressure measuring port are formed in the end, located in the heating runner, of the heater, and a hot water outlet is formed in the other end, located in the heating runner, of the heater; the pressure switch is connected to the pressure measuring opening and used for detecting the water pressure in the heating flow channel, and when the water pressure in the heating flow channel is lower than a preset value, the heating source stops working. In addition, the use safety is high, the time needed for providing hot water is effectively shortened, and therefore the working efficiency of the dish washing machine is improved.

Description

Technical Field

[0001] The invention relates to the field of household appliances, and in particular to a water inlet module and a dishwasher. Background Art

[0002] Using hot water to wash dishes in a dishwasher can precipitate calcium and magnesium ions in the water, reduce the formation of scale, and thus protect the heating elements and spray systems of the dishwasher. In addition, hot water can accelerate the dissolution of grease and food residues, improve the decontamination ability of detergents, and achieve better washing results. The current method of providing hot water in a dishwasher is usually to heat the water in the cup after filling it with water. This heating method takes a long time, and a single water inlet heating time usually takes more than ten minutes or more, resulting in a longer overall washing time for the dishwasher. Therefore, there is an urgent need for a water inlet structure that can conveniently provide hot water to a dishwasher. Summary of the invention

[0003] The object of the present invention is to provide a water inlet module and a dishwasher to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is: The first aspect of the present invention provides a water inlet module, comprising: a water softener, which has a water inlet and a water outlet connected to the inside; a heater, which is provided with a heating flow channel inside, a heating source is provided in the heating flow channel, the heater is located at one end of the heating flow channel and is provided with a water inlet and a pressure measuring port, and the heater is located at the other end of the heating flow channel and is provided with a hot water outlet; a pressure switch, which is connected to the pressure measuring port, the pressure switch is used to detect the water pressure in the heating flow channel, when the water pressure in the heating flow channel is lower than a preset value, the heating source stops working.

[0005] The technical solution has at least the following beneficial effects: after external water enters the water softener from the water inlet, the water softener is used to soften the external water, and then the softened water is output from the water outlet to the water inlet, and then enters the heating flow channel. At this time, the pressure switch detects the water pressure value in the heating flow channel. When the water pressure in the heating flow channel is higher than the preset value, the heater can work normally to heat the softened water. Since the water is softened by the water softener first, the formation of scale in the heating flow channel is effectively reduced. When the water inflow into the heating flow channel stops, the pressure switch detects that the water pressure in the heating flow channel is lower than the preset value. At this time, the heating source stops working to prevent the heating source from drying out in the heating flow channel, thereby improving the safety of use. In this way, the external water can be directly heated quickly and then discharged from the hot water outlet to the required structure for use, such as a dishwasher. It has high safety in use and effectively shortens the time required to provide hot water, thereby improving the working efficiency of the dishwasher.

[0006] As a further improvement of the above technical solution, a thick film heating tube is arranged in the heater, the heating flow channel is formed in the thick film heating tube, and the heating source includes a heating core tube, which is arranged in the thick film heating tube. The thick film heating tube can heat the softened water flowing through the heating flow channel by using its own thick film resistor, and a heating core tube is also arranged in the heating flow channel, and the softened water is heated by using the heating core tube in the middle of the heating flow channel, so that the softened water can be quickly and evenly heated when flowing through the heating flow channel, thereby ensuring the hot water output efficiency.

[0007] As a further improvement of the above technical solution, the heater includes a first end cover, a first bracket, a second bracket and a second end cover, one side of the first end cover forms the water inlet and the pressure measuring port, the first bracket is connected to the other side of the first end cover, one side of the second end cover forms the hot water outlet, the second bracket is connected to the other side of the second end cover, the thick film heating tube is connected between the first end cover and the second end cover, and the heating core tube is connected between the first bracket and the second bracket. The first bracket and the second bracket provide support and positioning for both ends of the heating core tube, so as to fix the heating core tube in the heating flow channel, and softened water enters the thick film heating tube from the water inlet of the first end cover, flows along the heating core tube at its periphery, and can quickly heat the softened water in the heating core tube, and then flows out from the hot water outlet of the second end cover.

[0008] As a further improvement of the above technical solution, the heater further comprises a shell, the shell is connected between the first end cover and the second end cover, and the thick film heating tube is located in the shell. The shell can surround and protect the thick film heating tube, which can prevent foreign objects from contacting the thick film heating tube, improve the safety of use, and reduce the direct loss of heat to the outside, improve the heat utilization rate, and further improve the heating efficiency.

[0009] As a further improvement of the above technical solution, the two ends of the thick film heating tube are respectively sleeved with sealing rings, and the two sealing rings are respectively against the first end cover and the second end cover. The two sealing rings can improve the sealing performance of the first end cover and the second end cover to the two ends of the thick film heating tube, effectively prevent liquid from seeping from the two ends of the thick film heating tube, and improve the safety of use.

[0010] As a further improvement of the above technical solution, a first screw sleeve is provided in the position of the shell facing the first end cover, a second screw sleeve is provided in the position of the shell facing the second end cover, a first screw is passed through the first end cover, the first screw is connected to the first screw sleeve, a second screw is passed through the second end cover, the second screw is connected to the second screw sleeve, and the first end cover and the second end cover are respectively pressed against the two ends of the thick film heating tube. The first screw presses the first end cover to one end of the shell, and the second screw presses the second end cover to the other end of the shell, so that the first end cover and the second end cover can be pressed and fixed from the two ends of the thick film heating tube, further improving the sealing performance of the connection between the thick film heating tube and the first end cover and the second end cover, and the overall structure is compact.

[0011] As a further improvement of the above technical solution, the side wall of the water softener is provided with a water outlet pipe, the water outlet is formed in the water outlet pipe, the first end cover is provided with a water inlet joint, the water inlet is formed in the water inlet joint, the water inlet joint is inserted into the water outlet pipe, a first support sleeve is provided on the outside of the water softener, the first end cover abuts against the first support sleeve, the first end cover is penetrated by a first bolt, and the first bolt is connected to the first support sleeve. The first end cover can directly insert the water inlet joint into the water outlet pipe of the side wall of the water softener to achieve a quick pre-positioning connection between the two. At this time, the first end cover abuts against the first support sleeve, and the support provided by the first support sleeve can further assist in positioning the first end cover, and then the first bolt is connected to the first support sleeve, and the first end cover is pressed and fixed to the side wall of the water softener, so that the heater can be quickly and firmly connected to the side wall of the water softener, and the stable connection between the water inlet joint and the water outlet pipe is ensured.

[0012] As a further improvement of the above technical solution, a second support sleeve is provided on the outside of the water softener, the second end cover abuts against the second support sleeve, a second bolt is passed through the second end cover, and the second bolt is connected to the inside of the second support sleeve. The second bolt can press and fix the second end cover on the second support sleeve, and further fix the other end of the heater to the outside of the water softener, thereby further improving the stability of the connection between the heater and the water softener.

[0013] As a further improvement of the above technical solution, the water inlet is connected to a flow meter, which can monitor the amount of external water input to the water softener, thereby improving the convenience of use.

[0014] A second aspect of the present invention provides a dishwasher, comprising a water cup and the water inlet module as described above, wherein the hot water outlet is connected to the water cup through a pipeline.

[0015] This technical solution has at least the following beneficial effects: when hot water is needed to wash dishes in the dishwasher, the above-mentioned water inlet module can be used to directly and quickly heat the external water, and then discharge it from the hot water outlet into the water cup, and then supply water from the water cup to the inside of the dishwasher. It is highly safe to use and effectively shortens the time required to provide hot water, thereby improving the working efficiency of the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional diagram of the water inlet module of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the heater of the present invention.

[0019] Figure 3 yes Figure 2 Schematic diagram of the AA cross-section structure.

[0020] Figure 4 It is a three-dimensional diagram of a dishwasher of the present invention.

[0021] In the accompanying drawings: 1-water softener, 11-first support sleeve, 12-second support sleeve, 2-heater, 21-heating flow channel, 221-water inlet, 222-pressure measuring port, 223-hot water outlet, 231-thick film heating tube, 232-heating core tube, 233-first end cover, 234-first bracket, 235-second bracket, 236-second end cover, 237-housing, 238-sealing ring, 241-first screw sleeve, 242-second screw sleeve, 25-water outlet pipe, 3-pressure switch, 4-water cup. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0023] Reference Figure 1 In a first aspect, the present invention provides a water inlet module, comprising: a water softener 1 having a water inlet and a water outlet connected to the inside; a heater 2 having a heating channel 21 disposed therein, wherein a heating source is disposed in the heating channel 21, wherein a water inlet 221 and a pressure measuring port 222 are disposed at one end of the heater 2 located at the heating channel 21, and a hot water outlet 223 is disposed at the other end of the heater 2 located at the heating channel 21; a pressure switch 3 connected to the pressure measuring port 222, wherein the pressure switch 3 is used to detect the water pressure in the heating channel 21, and when the water pressure in the heating channel 21 is lower than a preset value, the heating source stops working.

[0024] In this water inlet module, after external water enters the water softener 1 from the water inlet, the water softener 1 is used to soften the external water, and then the softened water is output from the water outlet to the water inlet 221, and then enters the heating channel 21. At this time, the pressure switch 3 detects the water pressure value in the heating channel 21. When the water pressure in the heating channel 21 is higher than the preset value, the heater 2 can work normally to heat the softened water. Since the water is softened by the water softener first, the scale formation in the heating channel 21 is effectively reduced. When the water inlet to the heating channel 21 stops, the pressure switch 3 detects that the water pressure in the heating channel 21 is lower than the preset value. At this time, the heating source stops working to prevent the heating source from drying in the heating channel 21, thereby improving the safety of use. In this way, the external water can be directly heated quickly, and then discharged from the hot water outlet 223 to the required structure for use, such as a dishwasher, and the use safety is high, and the time required to provide hot water is effectively shortened, thereby improving the working efficiency of the dishwasher.

[0025] Only one heating source can be used in the heater 2 to heat the softened water, and in order to further improve the heating efficiency and ensure the outlet water temperature, such as Figure 2 and Figure 3 As shown, in this embodiment, a thick film heating tube 231 is provided in the heater 2, the heating channel 21 is formed in the thick film heating tube 231, and the heating source includes a heating core tube 232, which is provided in the thick film heating tube 231. The thick film heating tube 231 uses its own thick film resistor to heat the softened water flowing through the heating channel 21, and a heating core tube 232 is further provided in the heating channel 21, and the heating core tube 232 is used to heat the softened water at the middle position of the heating channel 21, so that the softened water can be quickly and evenly heated when flowing through the heating channel 21, thereby ensuring the hot water output efficiency.

[0026] The heating core tube 232 needs to have a support to be fixed in the thick film heating tube 231. In this embodiment, the heater 2 includes a first end cover 233, a first bracket 234, a second bracket 235 and a second end cover 236. One side of the first end cover 233 forms the water inlet 221 and the pressure measuring port 222. The first bracket 234 is connected to the other side of the first end cover 233. One side of the second end cover 236 forms the hot water outlet 223. The second bracket 235 is connected to the other side of the second end cover 236. The thick film heating tube 231 is connected between the first end cover 233 and the second end cover 236. The heating core tube 232 is connected between the first bracket 234 and the second bracket 235. The first bracket 234 and the second bracket 235 provide support and positioning for the two ends of the heating core tube 232, so as to fix the heating core tube 232 in the heating flow channel 21. Softened water enters the thick film heating tube 231 from the water inlet 221 of the first end cover 233, flows along the periphery of the heating core tube 232, and can quickly heat the softened water in the heating core tube 232, and then flows out from the hot water outlet 223 of the second end cover 236.

[0027] In order to protect the thick film heating tube 231, in this embodiment, the heater 2 further includes a shell 237, the shell 237 is connected between the first end cover 233 and the second end cover 236, and the thick film heating tube 231 is located in the shell 237. The shell 237 can surround and protect the thick film heating tube 231, which can prevent foreign objects from contacting the thick film heating tube 231, improve the safety of use, and reduce the direct loss of heat to the outside, improve the heat utilization rate, and further improve the heating efficiency.

[0028] Furthermore, sealing rings 238 are respectively sleeved at both ends of the thick film heating tube 231, and the two sealing rings 238 are respectively against the first end cover 233 and the second end cover 236. The two sealing rings 238 can improve the sealing performance of the first end cover 233 and the second end cover 236 to the two ends of the thick film heating tube 231, effectively prevent the leakage of liquid from the two ends of the thick film heating tube 231, and improve the safety of use.

[0029] Furthermore, a first screw sleeve 241 is provided in the position of the shell 237 facing the first end cover 233, and a second screw sleeve 242 is provided in the position of the shell 237 facing the second end cover 236. A first screw is passed through the first end cover 233, and the first screw is connected to the first screw sleeve 241. A second screw is passed through the second end cover 236, and the second screw is connected to the second screw sleeve 242. The first end cover 233 and the second end cover 236 are respectively pressed against the two ends of the thick film heating tube 231. The first screw presses the first end cover 233 to one end of the shell 237, and the second screw presses the second end cover 236 to the other end of the shell 237. In this way, the first end cover 233 and the second end cover 236 can be pressed and fixed from the two ends of the thick film heating tube 231, further improving the sealing performance of the connection between the thick film heating tube 231 and the first end cover 233 and the second end cover 236, and the overall structure is compact.

[0030] The water softener 1 and the heater 2 can be independently arranged, in which case the water inlet 221 and the water outlet are connected via a pipeline. In the present embodiment, the water softener 1 and the heater 2 can be directly connected to each other. Specifically, a water outlet pipe 25 is arranged on the side wall of the water softener 1, and the water outlet is formed in the water outlet pipe 25. A water inlet joint is arranged on the first end cover 233, and the water inlet 221 is formed in the water inlet joint, and the water inlet joint is inserted into the water outlet pipe 25. A first support sleeve 11 is arranged on the outside of the water softener 1, and the first end cover 233 abuts against the first support sleeve 11. A first bolt is passed through the first end cover 233, and the first bolt is connected to the first support sleeve 11. The first end cover 233 can directly insert the water inlet connector into the water outlet connector 25 of the side wall of the water softener 1 to achieve a quick pre-positioning connection between the two. At this time, the first end cover 233 abuts against the first support sleeve 11. The support provided by the first support sleeve 11 can further assist in positioning the first end cover 233. Then, the first bolt is connected to the first support sleeve 11 to press and fix the first end cover 233 to the side wall of the water softener 1. In this way, the heater 2 can be quickly and firmly connected to the side wall of the water softener 1, and the water inlet connector and the water outlet connector 25 can be stably connected.

[0031] Furthermore, a second support sleeve 12 is disposed outside the water softener 1, the second end cover 236 abuts against the second support sleeve 12, and a second bolt is passed through the second end cover 236, and the second bolt is connected to the second support sleeve 12. The second bolt can compress and fix the second end cover 236 on the second support sleeve 12, and further fix the other end of the heater 2 to the outside of the water softener 1, thereby further improving the stability of the connection between the heater 2 and the water softener 1.

[0032] In some embodiments, the water inlet is connected to a flow meter, which can monitor the amount of external water input to the water softener 1, thereby improving the convenience of use.

[0033] A second aspect of the present invention provides a dishwasher, such as Figure 4 As shown, it includes a water cup 4 and a water inlet module as described above, and the hot water outlet 223 is connected to the water cup 4 through a pipeline.

[0034] In this dishwasher, when hot water is needed to wash dishes in the dishwasher, the above-mentioned water inlet module can be used to directly heat the external water quickly, and then discharge it from the hot water outlet 223 into the water cup 4, and then hot water is supplied from the water cup 4 to the inside of the dishwasher. It is highly safe to use and effectively shortens the time required to provide hot water, thereby improving the working efficiency of the dishwasher.

[0035] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A water inlet module, characterized in that: include: A water softener (1) having a water inlet and a water outlet connected to the inside; The heater (2) is provided with a heating flow channel (21) therein, a heating source is provided in the heating flow channel (21), a water inlet (221) and a pressure measuring port (222) are provided at one end of the heater (2) located at the heating flow channel (21), and a hot water outlet (223) is provided at the other end of the heater (2) located at the heating flow channel (21); A pressure switch (3) is connected to the pressure measuring port (222), wherein the pressure switch (3) is used to detect the water pressure in the heating flow channel (21); when the water pressure in the heating flow channel (21) is lower than a preset value, the heating source stops working.

2. A water inlet module according to claim 1, characterized in that: A thick film heating tube (231) is arranged in the heater (2), the heating flow channel (21) is formed in the thick film heating tube (231), and the heating source comprises a heating core tube (232), and the heating core tube (232) is arranged in the thick film heating tube (231).

3. A water inlet module according to claim 2, characterized in that: The heater (2) comprises a first end cover (233), a first bracket (234), a second bracket (235) and a second end cover (236); one side of the first end cover (233) forms the water inlet (221) and the pressure measuring port (222); the first bracket (234) is connected to the other side of the first end cover (233); one side of the second end cover (236) forms the hot water outlet (223); the second bracket (235) is connected to the other side of the second end cover (236); the thick film heating tube (231) is connected between the first end cover (233) and the second end cover (236); and the heating core tube (232) is connected between the first bracket (234) and the second bracket (235).

4. A water inlet module according to claim 3, characterized in that: The heater (2) further comprises an outer shell (237), wherein the outer shell (237) is connected between the first end cover (233) and the second end cover (236), and the thick film heating tube (231) is located inside the outer shell (237).

5. A water inlet module according to claim 4, characterized in that: Sealing rings (238) are respectively sleeved on both ends of the thick film heating tube (231), and the two sealing rings (238) are respectively abutted against the first end cover (233) and the second end cover (236).

6. A water inlet module according to claim 5, characterized in that: A first screw sleeve (241) is arranged in the position of the shell (237) opposite to the first end cover (233), and a second screw sleeve (242) is arranged in the position of the shell (237) opposite to the second end cover (236). A first screw is passed through the first end cover (233), and the first screw is connected to the first screw sleeve (241). A second screw is passed through the second end cover (236), and the second screw is connected to the second screw sleeve (242). The first end cover (233) and the second end cover (236) are respectively pressed against the two ends of the thick film heating tube (231).

7. A water inlet module according to claim 3, characterized in that: The side wall of the water softener (1) is provided with a water outlet pipe (25), the water outlet is formed in the water outlet pipe (25), the first end cover (233) is provided with a water inlet joint, the water inlet (221) is formed in the water inlet joint, the water inlet joint is inserted into the water outlet pipe (25), a first support sleeve (11) is provided on the outside of the water softener (1), the first end cover (233) abuts against the first support sleeve (11), the first end cover (233) is penetrated by a first bolt, and the first bolt is connected to the first support sleeve (11).

8. A water inlet module according to claim 7, characterized in that: A second support sleeve (12) is arranged outside the water softener (1), the second end cover (236) abuts against the second support sleeve (12), a second bolt is passed through the second end cover (236), and the second bolt is connected to the inside of the second support sleeve (12).

9. The water inlet module according to claim 1, characterized in that: The water inlet is connected with a flow meter.

10. A dishwasher, characterized in that: Comprising a water cup (4), a water inlet module according to any one of claims 1 to 9, wherein the hot water outlet (223) is connected to the water cup (4) through a pipeline.

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