Ventilator and electrical device

Abstract

A ventilator (100) and an electrical device, the ventilator (100) comprising a housing (110) and a water flow detection assembly (130). The housing (110) is provided with a water flow channel (160) and an accommodation cavity (170), the water flow channel (160) comprising an inlet channel (161) and an outlet channel (162), and the inlet channel (161), the accommodation cavity (170) and the outlet channel (162) being connected in sequence. The water flow detection assembly (130) for detecting the inlet water velocity is disposed in the accommodation cavity (170). At least a portion of the water flow channel (160) is provided with a flow-stabilizing section (163), so as to slow down the inlet water velocity and / or the outlet water velocity of the accommodation cavity (170).

Description

A respirator and an electrical appliance Cross-reference to related disclosures

[0001] The present disclosure claims priority to Chinese patent publications No. 202410866205.1 and 202421522404.2, filed on June 29, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure belongs to the technical field of electrical appliances, and specifically relates to a respirator and an electrical appliance. BACKGROUND

[0003] In the related art, a water amount detection assembly for detecting the water inflow speed is arranged inside the respirator, but the water amount detection assembly may have detection errors due to fluctuations in the water inflow speed. SUMMARY

[0004] The present disclosure provides a respirator and an electrical appliance, aiming to at least partially solve the technical problem of detection errors in the water inflow speed of the respirator.

[0005] In a first aspect of the present disclosure, a respirator is provided, which comprises a housing and a water amount detection assembly, the housing is provided with a water flow channel and a containing cavity, the water flow channel comprises a water inflow channel and a water outflow channel, the water inflow channel, the containing cavity and the water outflow channel are sequentially communicated, the water amount detection assembly is arranged in the containing cavity for detecting the water inflow speed, and at least part of the water flow channel is provided with a flow stabilizing section for slowing down the water inflow speed or / and the water outflow speed of the containing cavity.

[0006] In some embodiments, the water inflow channel or / and the water outflow channel is provided with the flow stabilizing section.

[0007] In some embodiments, the cross-sectional dimension of the flow stabilizing section is smaller than the cross-sectional dimension of the water flow channel.

[0008] In some embodiments, at least one end of the flow stabilizing section is connected to the water flow channel through a transition section, and the cross-sectional width dimension of the transition section gradually increases in the direction away from the flow stabilizing section.

[0009] In some embodiments, a first water blocking member is arranged in the flow stabilizing section, and the first water blocking member is provided with a water passing hole.

[0010] In some embodiments, one side of the first water blocking member is connected to the side wall of one side of the flow stabilizing section, and the other side of the first water blocking member and the other side wall of the flow stabilizing section are configured as the water passing hole.

[0011] In some embodiments, the first water-stopping piece is arranged in plurality along the water flow direction, and the plurality of first water-stopping pieces are connected to the same side wall of the flow stabilizing section, or the plurality of first water-stopping pieces are connected to the opposite side walls of the flow stabilizing section.

[0012] In some embodiments, the water inlet channel is arranged in two or more sections, and the two or more sections of the water inlet channel are arranged at an acute angle or a right angle.

[0013] In some embodiments, the housing is provided with a water inlet, one of the water inlet channels is in communication with the water inlet, and the water inlet channel connected to the water inlet has an included angle of less than or equal to 90° with the water inlet.

[0014] In some embodiments, the water inlet channel is arranged in two sections, one of the water inlet channels is in communication with the water inlet, and the other of the water inlet channels is in communication with the accommodating cavity, and the two sections of the water inlet channel are arranged at an acute angle or a right angle.

[0015] In some embodiments, at least part of the water flow channel is arranged in a stacked manner.

[0016] In some embodiments, the housing is further provided with a water outlet, the water outlet is in communication with the water outlet end of the water outlet channel, a buffer is arranged in the water outlet end of the water outlet channel, the buffer is connected to at least part of the edge of the water outlet, and the buffer is arranged at an acute angle with the water flow direction.

[0017] In some embodiments, the buffer is arranged on at least one side of the water outlet end of the water outlet channel in the thickness direction.

[0018] In some embodiments, the housing is further provided with a water storage cavity and a gas permeation port in communication, the water outlet end of the water outlet channel is provided with a communication port in communication with the water storage cavity, and a blocking piece is arranged in the communication port to reduce the aperture of the communication port.

[0019] In some embodiments, the blocking piece is arranged on at least one side of the communication port.

[0020] In some embodiments, the water storage cavity is provided with an air inlet channel, the air inlet channel is in communication with the gas permeation port, a second water-stopping piece is arranged in the air inlet channel, and an air inlet hole is arranged on the second water-stopping piece.

[0021] In some embodiments, one side of the second water-stopping piece is connected to one side wall of the air inlet channel, and the other side of the second water-stopping piece and the other side wall of the air inlet channel form the air inlet hole.

[0022] In some embodiments, the second water blocking member is arranged in plurality along the air inlet direction, and the plurality of second water blocking members are connected to the same side wall of the air inlet channel, or the plurality of second water blocking members are connected to the opposite side walls of the air inlet channel. In a second aspect of the present disclosure, an electric appliance is provided, which comprises the breather described above.

[0023] The breather provided according to one or more embodiments of the present disclosure comprises a housing and a water amount detection assembly. The housing is provided with a water flow channel and a containing cavity. The water flow channel comprises an inlet channel and an outlet channel. The inlet channel, the containing cavity and the outlet channel are sequentially communicated. Water flows into the containing cavity from the inlet channel and is discharged through the outlet channel. The water amount detection assembly is arranged in the containing cavity. During the water flow through the containing cavity, the water amount detection assembly can detect the water amount flowing through the containing cavity. Since at least part of the water flow channel is provided with a flow stabilizing section, the water inlet speed or / and the water outlet speed of the containing cavity is slowed down, the water inlet speed or / and the water outlet speed of the containing cavity is stabilized, the fluctuation phenomenon of the water amount in the containing cavity is improved, the pulse emitted by the water amount detection assembly is stabilized, the accuracy of the water amount detection result is improved, and the working stability of the electric appliance with the breather is also improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0025] Fig. 1 shows a structural schematic diagram of the breather in one or more embodiments of the present disclosure;

[0026] Fig. 2 shows an exploded view of Fig. 1;

[0027] Fig. 3 shows an internal assembly view of the breather of Fig. 1;

[0028] Fig. 4 shows a partial schematic view of the inlet channel at A of Fig. 3.

[0029] Fig. 5 shows a partial schematic view at B of Fig. 3.

[0030] Fig. 6 shows a partial schematic view of another perspective of Fig. 5.

[0031] Fig. 7 shows a partial schematic view at C of Fig. 3.

[0032] Fig. 8 shows a B-B sectional view of Fig. 3.

[0033] Fig. 9 shows an internal assembly view of another perspective of the breather of Fig. 1.

[0034] Fig. 10 shows a flow schematic of the waterway and airway in Fig. 1.

[0035] Figs. 11-16 show internal structural schematic diagrams of respirators of other embodiments.

[0036] Legend of reference signs:

[0037] 100 - respirator.

[0038] 110 - housing, 111 - first piece, 111a - mounting hole, 112 - second piece, 113 - partition, 114 - flowmeter cover, 115 - side plate.

[0039] 121 - first water-blocking member, 121a - water passage hole, 122 - second water-blocking member, 123 - third water-blocking member, 123a - first air passage hole, 124 - fourth water-blocking member, 124a - second air passage hole, 125 - buffer member, 126 - blocking member, 127 - fixing buckle.

[0040] 130 - water amount detection assembly, 131 - impeller, 132 - Hall element, 133 - magnetic ring.

[0041] 140 - water inlet connector;

[0042] 150 - water outlet connector;

[0043] 160 - water flow channel, 161 - water inlet channel, 162 - water outlet channel, 163 - flow stabilizing section, 164 - transition section, 165 - water inlet, 166 - water outlet, 170 - containing cavity, 180 - water storage cavity, 181 - air inlet channel, 182 - air permeation opening, 183 - communication opening. DETAILED DESCRIPTION

[0044] In order to make the skilled in the art to which the present disclosure belongs more clearly understand the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0045] In the related art, for the household dishwashers and commercial dishwashers and other electrical appliances with limited space, the volume of the respirator is very small. When the water flow passes through the respirator, the rotation rate of the impeller of the water amount detection assembly of the respirator is extremely easy to fluctuate when detecting the water amount, resulting in unstable pulse number representing the rotation number of the impeller, and inaccurate water amount detection.

[0046] The first aspect of the present disclosure provides a breather which can be applied to an electric appliance, such as a household dishwasher, a commercial dishwasher, etc., and can improve the stability of impeller rotation to a certain extent, stabilize the pulse number, and ensure the accuracy of water inflow detection.

[0047] Referring to FIGS. 1 and 2, the breather 100 provided by the present disclosure includes a housing 110 and a water amount detection assembly 130. The housing 110 is provided with a water flow channel 160 and a containing cavity 170. The water flow channel 160 includes an inflow channel 161 and an outflow channel 162. The inflow channel 161, the containing cavity 170, and the outflow channel 162 are sequentially communicated. Water flows from the inflow channel 161 into the containing cavity 170 and is then discharged through the outflow channel 162. The water amount detection assembly 130 is arranged in the containing cavity 170. During the water flow through the containing cavity 170, the water amount detection assembly 130 can detect the water amount flowing through the containing cavity, i.e., the water inflow amount.

[0048] Referring to FIGS. 3, 4, 11, 12, 14, and 16, at least part of the water flow channel 160 is provided with a flow stabilizing section 163. At least one of the inflow channel 161 and the outflow channel 162 is provided with the flow stabilizing section 163, that is, the inflow channel 161 or / and the outflow channel 162 is provided with the flow stabilizing section 163, for example, the inflow channel 161 is provided with the flow stabilizing section 163, or the outflow channel 162 is provided with the flow stabilizing section 163, or both the inflow channel 161 and the outflow channel 162 are provided with the flow stabilizing section 163, to slow down the water inflow speed or / and the water outflow speed of the containing cavity. In some embodiments, when the flow stabilizing section 163 is located in the inflow channel 161, the water outflow speed of the flow stabilizing section 163 is less than the water inflow speed of the containing cavity 170, so as to stabilize the water inflow speed of the containing cavity 170; when the flow stabilizing section 163 is located in the outflow channel 162, the water outflow speed of the flow stabilizing section 163 is less than the water outflow speed of the containing cavity 170, so as to stabilize the water outflow speed of the containing cavity 170; when both the inflow channel 161 and the outflow channel 162 are provided with the flow stabilizing section 163, the water outflow speed of the flow stabilizing section 163 of the inflow channel 161 is less than the water inflow speed of the containing cavity 170, and the water outflow speed of the flow stabilizing section 163 of the outflow channel 162 is less than the water outflow speed of the containing cavity 170, so as to stabilize the water inflow speed and the water outflow speed of the containing cavity 170.

[0049] Water flows into the containing cavity 170 through the water inlet channel 161 and is discharged through the water outlet channel 162; the water quantity detection assembly 130 is arranged in the containing cavity 170 and can detect the water quantity flowing through the containing cavity 170. Since the water outlet speed of the steady flow section 163 of the water flow channel 160 is less than the water inlet speed or / and the water outlet speed of the containing cavity 170, the water inlet speed or / and the water outlet speed of the containing cavity 170 can be stabilized; the smaller the fluctuation of the water inlet speed or / and the water outlet speed, the smaller the fluctuation of the water inlet speed of the respirator 100 caused by the influence of the water quantity detection assembly 130 itself, the more stable the pulse number emitted by the water quantity detection assembly 130, and the more accurate the water quantity detection result, thereby improving the working stability of the dish washing machine.

[0050] The shell 110 is the entity structure of the flow channels and the chambers and the installation base of the water quantity detection assembly; in some embodiments, referring to FIGS. 1 and 2, the shell 110 includes a first sheet 111, a second sheet 112, a side plate 115 connected to the edges of the first sheet 111 and the second sheet 112, and a plurality of partition plates 113, the first sheet 111, the second sheet 112, and the side plate 115 enclose an installation space, the plurality of partition plates 113 are located in the installation space and each is connected to the first sheet 111 and the second sheet 112, and the first sheet 111, the second sheet 112, the side plate 115, and the partition plates 113 enclose the water flow channel 160 and the containing cavity 170.

[0051] The water quantity detection assembly is used for detecting the flow of water; in some embodiments, referring to FIG. 2, the water quantity detection assembly includes an impeller 131, a magnetic ring 133, and a Hall element 132, wherein the impeller 131 is rotatably connected in the containing cavity 170 and rotates under the action of water flow; the magnetic ring 133 is connected to the impeller 131 and rotates synchronously with the impeller 131 to provide the Hall element 132 with an inductive information source; the Hall element 132 is arranged outside the containing cavity 170 and cooperates with the magnetic ring 133 to be used for counting the rotation number of the magnetic ring 133 and transmitting a water pulse signal to a main control board.

[0052] In some embodiments, the impeller 131 includes a body and an impeller shaft (not shown in the figure), the body is connected to the impeller shaft, the impeller shaft is provided with a mounting hole, and the magnetic ring 133 is mounted in the mounting hole. In some embodiments, the shell 110 further includes a flowmeter cover 114, the first sheet 111 is provided with a mounting hole 111a for mounting the flowmeter cover 114, and the flowmeter cover 114, the second sheet 112, and the partition plates 113 enclose the containing cavity 170.

[0053] For the convenience of introducing the structure of the respirator of the present disclosure, the width direction and the thickness direction of the water flow passage 160 are first presented, both of which are perpendicular to the water flow direction. The width direction of the water flow passage 160 is the direction of the connecting line of the first sheet body 111 and the second sheet body 112, that is, the width direction is parallel to the extension direction of the side plate 115. The thickness direction of the water flow passage 160 is perpendicular to the width direction.

[0054] The flow stabilizing section 163 is a structure for stabilizing the water flow speed. In some embodiments, referring to FIGS. 3, 4, 11, 12 and 16, the cross-sectional dimension of the flow stabilizing section 163 is smaller than that of the water flow passage 160, forming a converging type flow stabilizing structure, so that the water outflow speed of the flow stabilizing section 163 is smaller than the water inflow speed or / and the water outflow speed of the containing cavity 170. That is, along the direction perpendicular to the water flow direction, the dimension of the flow stabilizing section 163 is smaller than that of the water flow passage 160. By narrowing the water flow passage 160 and then widening it again, the water outflow speed of the flow stabilizing section 163 is smaller than the water inflow speed or / and the water outflow speed of the containing cavity 170, stabilizing the water inflow speed or / and the water outflow speed of the containing cavity 170. According to an embodiment of the present disclosure, the width dimension of the flow stabilizing section 163 can be smaller than that of the water flow passage 160, so that the cross-sectional dimension of the flow stabilizing section 163 is smaller than that of the water flow passage 160. According to another embodiment of the present disclosure, the thickness dimension of the flow stabilizing section 163 can be smaller than that of the water flow passage 160, so that the cross-sectional dimension of the flow stabilizing section 163 is smaller than that of the water flow passage 160.

[0055] In other embodiments, the cross-sectional area of the flow stabilizing section 163 perpendicular to the water flow direction is smaller than that of other positions of the water flow passage 160, so that the water outflow speed of the flow stabilizing section 163 is smaller than the water inflow speed or / and the water outflow speed of the containing cavity 170. In some embodiments, the cross-sectional shape of the flow stabilizing section 163 can be at least one of a circle, an ellipse and a polygon, and the cross-sectional shape of other positions of the water flow passage 160 can also be at least one of a circle, an ellipse and a polygon. In certain embodiments, the cross-section of the flow stabilizing section 163 is circular, and the cross-section of other positions of the water flow passage 160 is also circular, and the diameter of the flow stabilizing section 163 is smaller than that of other positions of the water flow passage 160. In other embodiments, the cross-section of the flow stabilizing section 163 is square, and the cross-section of other positions of the water flow passage 160 is circular, quadrilateral or hexagonal, etc.

[0056] In some embodiments, referring to FIG. 3, FIG. 4, FIG. 11, FIG. 12 and FIG. 16, at least one end of the flow stabilizing section 163 is connected to the water flow passage 160 through a transition section 164, the width dimension of the transition section 164 gradually increases in the direction away from the flow stabilizing section 163, that is, the cross-sectional area of the transition section 164 perpendicular to the water flow direction gradually increases in the direction away from the flow stabilizing section 163, further improving the flow stability of the water in the water flow passage 160. In some embodiments, the water outlet end of the flow stabilizing section 163 is connected to the water flow passage 160 through the transition section 164, or the water inlet end of the flow stabilizing section 163 is connected to the water flow passage 160 through the transition section 164, or both the water outlet end and the water inlet end of the flow stabilizing section 163 are connected to the water flow passage 160 through the transition section 164. In some embodiments, the cross-sectional shape of the transition section 164 perpendicular to the water flow direction can be one of a circle, an ellipse or a polygon. In some embodiments, referring to FIG. 13 and FIG. 14, the flow stabilizing section 163 is provided with a first water blocking member 121, the first water blocking member 121 is provided with a water passing hole 121a for water flow, the cross-sectional area of the water passing hole 121a is smaller than that of other parts of the water flow passage 160, so that the water outlet speed of the flow stabilizing section 163 is smaller than the water inlet speed or / and the water outlet speed of the containing cavity 170. In some embodiments, the edge of the first water blocking member 121 is sealingly connected to the side wall of the flow stabilizing section 163, the middle part of the first water blocking member 121 is provided with the water passing hole 121a, the axial direction of the water passing hole 121a is the same as the water flow direction, or the axial direction of the water passing hole 121a has an angle with the water flow direction. In other embodiments, the first water blocking member 121 can be provided with multiple water passing holes 121a, for example, two, three or other numbers, the multiple water passing holes 121a are distributed at intervals.

[0057] In some embodiments, referring to FIG. 13 and FIG. 14, one side of the first water blocking member 121 is connected to one side of the side wall of the flow stabilizing section 163, the other side of the first water blocking member 121 and the other side wall of the flow stabilizing section 163 form the water passing hole 121a. For the convenience of description, the two opposite side walls of the flow stabilizing section 163 perpendicular to the water flow direction, for example, the two opposite side walls of the flow stabilizing section 163 along the width direction are named as the first side wall and the second side wall. In some embodiments, the first water blocking member 121 is connected to the first side wall of the flow stabilizing section 163, the first water blocking member 121 is arranged at intervals with the second side wall, forming the water passing hole 121a. In other embodiments, the first water blocking member 121 is connected to the second side wall of the flow stabilizing section 163, the first water blocking member 121 is arranged at intervals with the first side wall, forming the water passing hole 121a. Of course, in other embodiments, the two opposite side walls of the flow stabilizing section 163 along the thickness direction can also be named as the first side wall and the second side wall.

[0058] In some embodiments, the first water-stopping member 121 can also be provided with a notch on the basis of the same structure as the cross-sectional shape of the flow stabilizing section 163, and the first water-stopping member 121 is connected to the first side wall of the flow stabilizing section 163, and the notch of the first water-stopping member 121 forms a water passage 121a with the second side wall of the flow stabilizing section 163. In some embodiments, the first water-stopping member 121 is provided with a plurality of notches which are arranged at intervals along the edge of the first water-stopping member 121, and the first water-stopping member 121 and the side wall of the flow stabilizing section 163 enclose a plurality of water passages 121a.

[0059] In some embodiments, a plurality of first water-stopping members 121 are arranged at intervals along the direction of water flow, and the plurality of first water-stopping members 121 are connected to the same side wall of the flow stabilizing section 163, that is, the plurality of first water-stopping members 121 are all connected to the first side wall, or the plurality of first water-stopping members 121 are all connected to the second side wall, and the plurality of first water-stopping members 121 are connected to the same side wall of the flow stabilizing section 163 to form a zigzag-shaped inner wall. In some embodiments, please refer to FIG. 13 and FIG. 14, the plurality of first water-stopping members 121 are alternately connected to the opposite two side walls of the flow stabilizing section 163, for example, the plurality of first water-stopping members 121 are alternately connected to the first side wall and the second side wall to form a labyrinth channel. In other embodiments, the first water-stopping members 121 can also be arranged in groups, and a plurality of first water-stopping members 121 are arranged in each group, and the first water-stopping members 121 in each group are alternately connected to the opposite two side walls of the flow stabilizing section 163.

[0060] In some embodiments, the first water-stopping member 121 is connected to the partition plate 113, the first sheet body 111 or the second sheet body 112. In other embodiments, the first water-stopping member 121 is connected to two of the partition plate 113, the first sheet body 111 and the second sheet body 112.

[0061] In some embodiments, the first water-stopping member 121 is at least one of a water-stopping block and a water-stopping protrusion, that is, the first water-stopping member 121 can be a water-stopping block or a water-stopping protrusion. When a plurality of first water-stopping members 121 are provided, part of the first water-stopping members 121 are water-stopping blocks, and the remaining first water-stopping members 121 are water-stopping protrusions. In some embodiments, the shape of the first water-stopping member 121 can be rectangular, square or circular, etc., and can also be arc-shaped, zigzag-shaped, etc.

[0062] The water inlet channel 161 is a channel for water flow into the containing cavity 170. In some embodiments, referring to FIG. 13, the water inlet channel 161 is provided with two or more sections, for example, two, three or four sections. At least two sections of the water inlet channel 161 are arranged at an acute angle or a right angle, i.e. the included angle between two adjacent water inlet channels 161 is an acute angle, for example, 30°, 40°, 50°, 60°, etc., or the two adjacent water inlet channels 161 are perpendicular to each other. In other embodiments, the included angle between two adjacent water inlet channels 161 is an obtuse angle. Since at least two sections of the water inlet channel 161 are arranged at an acute angle or a right angle, the side wall at the connection between the two adjacent water inlet channels 161 can block the water flow, thereby stabilizing the water inlet speed of the containing cavity 170.

[0063] In some embodiments, referring to FIG. 4, the middle section of at least one water inlet channel 161 has a smaller cross-sectional area than the two ends of the water inlet channel 161, and the middle section of the water inlet channel 161 forms a contraction type flow stabilizing structure. In some embodiments, the first water blocking member 121 is arranged in at least one water inlet channel 161, and the portion of the water inlet channel 161 where the first water blocking member 121 is arranged forms a flow stabilizing section 163. In some embodiments, the middle section of the first channel has a smaller cross-sectional area than the two ends of the water inlet channel 161, and the first water blocking member 121 is arranged in the water inlet channel 161 at the end of the water inlet channel 161, i.e. the water inlet channel 161 has both a contraction type flow stabilizing structure and a flow stabilizing structure with the first water blocking member 121 arranged therein.

[0064] In some embodiments, referring to FIG. 15, the shell 110 is provided with a water inlet 165, one water inlet channel 161 is connected to the water inlet 165, and the included angle between the water inlet channel 161 connected to the water inlet 165 and the water inlet 165 is less than or equal to 90°, so as to block the impact of the water flow by the side wall of the first channel in a limited space, thereby stabilizing the fluid flow rate in the water inlet channel 161. In other embodiments, the included angle between the water inlet channel 161 connected to the water inlet 165 and the water inlet 165 is an obtuse angle.

[0065] In some embodiments, referring to FIG. 15, the water inlet channel 161 is provided with two sections, one water inlet channel 161 is connected to the water inlet 165, and the other water inlet channel 161 is connected to the containing cavity 170, and the two sections of the water inlet channel 161 are arranged at an acute angle or a right angle. In some embodiments, the flow stabilizing section 163 is arranged in one water inlet channel 161.

[0066] The water flow channel 160 serves as a running path for water flow. In some embodiments, referring to FIG. 16, at least part of the water flow channel 160 is arranged in a stacked manner, forming a serpentine flow path. The sidewall of the stacked water flow channel 160 can block water flow and also lengthen the flow path of water flow, thereby stabilizing the water inflow speed or / and water outflow speed of the accommodation cavity 170. In some embodiments, the water inflow channel 161 is arranged in a stacked manner, or the water outflow channel 162 is arranged in a stacked manner, or both the water inflow channel 161 and the water outflow channel 162 are arranged in a stacked manner. In some embodiments, referring to FIG. 16, the flow stabilizing section 163 is arranged at part of the stacked water flow channel 160, i.e., the flow stabilizing section with a contraction pattern or / and the flow stabilizing section with the first water blocking member 121 arranged at part of the stacked water flow channel 160. In other embodiments, the flow stabilizing section 163 is arranged at part of the water flow channel 160 other than the stacked part, i.e., the flow stabilizing section with a contraction pattern or / and the flow stabilizing section with the first water blocking member 121 arranged at part of the water flow channel 160 other than the stacked part.

[0067] In some embodiments, referring to FIGS. 3, 5 and 8, the shell 110 is further provided with a water outlet 166, which is in communication with the water outflow end of the water outflow channel 162. The water outflow end of the water outflow channel 162 is provided with a buffer member 125, which is connected to at least part of the edge of the water outlet 166. The buffer member 125 is arranged at an acute angle with the water flow direction, i.e., the buffer surface of the buffer member 125 is arranged at an acute angle with the water flow direction, so as to stabilize the water outflow speed of the respirator 100. In some embodiments, the buffer surface can be a flat surface or an arc surface. In some embodiments, when the cross section of the water outflow channel 162 is polygonal, the buffer surface is a flat surface, which is convenient for processing and manufacturing.

[0068] In some embodiments, the two sides in the thickness direction of the water outlet 166 and the two sides in the thickness direction of the water outflow end of the water outflow channel 162 have a distance, so as to form a step in the thickness direction between the water outflow channel 162 and the water outlet 166. The buffer member 125 is arranged at the step of at least one side in the thickness direction of the water outflow end of the water outflow channel 162, so as to stabilize the water outflow speed of the respirator 100. In other embodiments, the buffer member 125 is arranged at the steps of both sides in the thickness direction of the water outflow end of the water outflow channel 162.

[0069] In other embodiments, if the two sides in the thickness direction and the width direction of the water outlet 166 and the sides of the water outflow end of the water outflow channel 162 all have a distance, so as to form a step between the water outflow channel 162 and the water outlet 166. The buffer member 125 can be arranged at the step of at least one side of the water outflow end of the water outflow channel 162, so as to stabilize the water outflow speed of the respirator 100. In some embodiments, the buffer member 125 is connected to at least one of the second sheet 111 and the partition plate 113.

[0070] In some embodiments, the buffer 125 is a ring, which covers the step formed by the water outlet channel 162 and the water outlet 166. The inner ring of the buffer 125 has a diameter that decreases in the direction of water flow. The inner ring surface of the buffer 125 forms a buffer surface. In other embodiments, the buffer 125 can be a buffer block, which is provided with a buffer surface.

[0071] In some embodiments, the water outlet channel 162 has a rectangular cross-sectional shape, and the water outlet 166 has a circular cross-sectional shape. The width of the rectangle is equal to the diameter of the circle, and the length of the rectangle is greater than the diameter of the circle. The projection of the circle in the direction of water flow falls within the rectangle. The water outlet channel 162 is provided with a step surface on both sides in the thickness direction, i.e., the length direction. The buffer 125 is located on one side of the water outlet channel 162 in the thickness direction.

[0072] In some embodiments, when the flow stabilizing section 163 is arranged in the water outlet channel 162, the flow stabilizing section 163 is farther away from the water outlet 166 than the buffer 125, i.e., water first flows through the flow stabilizing section with a contraction shape and / or the flow stabilizing section provided with the first water blocking member 121, and then acts on the buffer 125. The water flows through the flow stabilizing section 163 and the buffer 125 in sequence, further stabilizing the water flow speed.

[0073] In some embodiments, referring to FIGS. 3 and 9, the housing 110 is further provided with a water storage cavity 180 and a gas vent 182 in communication. The water outlet end of the water outlet channel 162 is provided with a communication port 183 in communication with the water storage cavity 180. The gas vent 182 is provided to enable the water storage cavity 180 to communicate with the outside. If the water in the water cup of the dishwasher exhibits a siphon effect and flows back to the water storage cavity 180 of the breather through the water outlet connector 150, since the water storage cavity 180 communicates with the outside through the gas vent 182, the atmospheric pressure forces the water in the water storage cavity 180 to flow back to the water cup through the water outlet connector 150, thereby avoiding the phenomenon that the water in the water cup of the dishwasher exhibits a siphon effect and enters the breather or even the municipal water network. The communication port 183 is provided to enable the water in the water outlet channel 162 to be temporarily stored in the water storage cavity 180. Referring to FIGS. 5 and 6, the communication port 183 is provided with a blocking member 126 to reduce the aperture of the communication port 183, thereby avoiding the phenomenon that too much water enters the water storage cavity 180 and causes the air inlet channel 181 and the gas vent 182 to spray water.

[0074] In some embodiments, referring to FIG. 6, the blocking member 126 is arranged at least one side of the communication port 183 to reduce the aperture of the communication port 183. In some embodiments, the blocking member 126 is arranged at one side or both sides of the communication port 183 along the thickness direction, in some embodiments, the blocking member 126 is arranged at one side or both sides of the communication port 183 along the width direction, in some embodiments, the blocking member 126 is connected to the two side walls of the communication port 183 arranged oppositely along the thickness direction, and the blocking member 126 is spaced apart from the two side walls of the communication port 183 along the width direction. In other embodiments, the blocking member 126 is connected to the two side walls of the communication port 183 arranged oppositely along the width direction, and the blocking member 126 is spaced apart from the two side walls of the communication port 183 along the thickness direction.

[0075] In some embodiments, the blocking member 126 is connected to the partition plate 113, the first sheet 111 or the second sheet 112. In another embodiment, the blocking member 126 is connected to two of the partition plate 113, the first sheet 111 and the second sheet 112. In some embodiments, the blocking member 126 can be a blocking block or a blocking plate, and the shape of the blocking member 126 can be a cube, a cuboid or a sphere.

[0076] In some embodiments, referring to FIG. 3, the water storage cavity 180 is provided with an air inlet channel 181, the air inlet channel 181 and the air vent 182 are communicated to allow air to enter the water storage cavity 180 through the air vent 182 and the air inlet channel 181, and the second water blocking member 122 is arranged in the air inlet channel 181 to block the water in the water storage cavity 180 from being discharged through the air inlet channel 181 and the air vent 182, referring to FIG. 1, the second water blocking member 122 is provided with an air inlet hole 122a to allow air to enter the water storage cavity 180 to avoid the phenomenon that the water in the water cup of the dishwasher enters the breather or even the municipal water network due to the siphon effect. In some embodiments, the air inlet hole 122a is arranged in the middle of the second water blocking member 122. In some embodiments, the air inlet hole 122a is provided with a plurality of air inlet holes 122a, and the plurality of air inlet holes 122a are spaced apart. In some embodiments, the axis of the air inlet hole 122a is parallel to the axis of the air inlet channel 181. In some embodiments, the axis of the air inlet hole 122a has an angle with the axis of the air inlet channel 181.

[0077] In addition, when the dishwasher is running, a large amount of steam will be generated in the inner container of the dishwasher to increase the internal air pressure of the inner container, and the steam may impact the door body of the dishwasher to produce abnormal sound, which affects the user experience. By arranging the air inlet hole 122a, part of the steam in the inner container can be discharged through the air inlet hole 122a to balance the internal air pressure of the machine and reduce the phenomenon of abnormal sound of the door body to improve the user experience.

[0078] In some embodiments, one side of the second water-blocking member 122 is connected to one side wall of the air inlet channel 181, and the other side of the second water-blocking member 122 and the other side wall of the air inlet channel 181 are configured as the air inlet hole 122a. In some embodiments, the second water-blocking member 122 is connected to the side wall of the air inlet channel 181 in the width direction or the side wall of the air inlet channel 181 in the thickness direction. In some embodiments, the second water-blocking member 122 is connected to two adjacent side walls of the air inlet channel 181, and the second water-blocking member 122 is spaced apart from the other side walls of the air inlet channel 181 to form the air inlet hole. In some embodiments, the second water-blocking member 122 is connected to one or more of the partition plate 113, the first sheet 111, and the second sheet 112. The second water-blocking member 122 is spaced apart from at least one of the partition plate 113, the first sheet 111, and the second sheet 112 to form the air inlet hole.

[0079] In some embodiments, referring to FIG. 2, a plurality of second water-blocking members 122, for example, two, three, or four, are spaced apart in the air inlet direction. The plurality of second water-blocking members 122 are connected to the same side wall of the air inlet channel 181, for example, the plurality of second water-blocking members 122 are connected to one side wall in the width direction of the air inlet channel 181, or the plurality of second water-blocking members 122 are connected to one side wall in the thickness direction of the air inlet channel 181. In some embodiments, the plurality of second water-blocking members 122 are connected to the opposite two side walls of the air inlet channel 181, for example, the plurality of second water-blocking members 122 are connected to the two side walls in the thickness direction of the air inlet channel 181, or the plurality of second water-blocking members 122 are connected to the two side walls in the width direction of the air inlet channel 181.

[0080] In some embodiments, the second water-blocking member 122 can be at least one of a water-blocking block and a water-blocking protrusion. In some embodiments, the second water-blocking member 122 can also be a water-blocking plate. In some embodiments, the shape of the second water-blocking member 122 can be circular, elliptical, or polygonal, for example, quadrilateral, pentagonal, etc.

[0081] In some embodiments, referring to FIG. 3, FIG. 7 and FIG. 9, the shell 110 further comprises a third water blocking member 123 located in the water storage cavity 180, the third water blocking member 123 is located close to the communication between the air inlet channel 181 and the water storage cavity 180, so as to block the water in the water storage cavity 180 from being discharged through the air inlet channel 181 and the air permeable opening 182, the third water blocking member 123 is provided with a first air passing hole 123a in communication with the air inlet channel 181, for example, the middle part of the third water blocking member 123 is provided with the first air passing hole 123a, so that the gas in the air inlet channel 181 enters the water storage cavity 180 through the first air passing hole 123a, and the problem of water spraying from the water storage cavity 180 to the water outlet channel 162 is improved. In some embodiments, the first air passing hole 123a is provided with a plurality of, for example, two, three or four, etc., and the plurality of first air passing holes 123a are arranged at intervals on the third water blocking member 123.

[0082] In some embodiments, the third water blocking member 123 is connected to the first sheet 111 or / and the second sheet 112, the third water blocking member 123 is arranged at intervals with the side plate 115, the middle part of the third water blocking member 123 and the side plate 115 form an air passing channel, and the end part of the third water blocking member 123 and the side plate 115 form the first air passing hole 123a. In some embodiments, the first air passing hole 123a is provided with two, i.e. the two end parts of the third water blocking member 123 are arranged at intervals with the side plate 115, forming the first air passing hole 123a.

[0083] In some embodiments, referring to FIG. 3, FIG. 7 and FIG. 9, the respirator 100 further comprises a fourth water blocking member 124, the fourth water blocking member 124 is located in the air passing channel, and the middle part of the fourth water blocking member 124 is provided with a second air passing hole 124a. In some embodiments, the end part of the fourth water blocking member 124 is arranged at intervals with the third water blocking member 123, forming the second air passing hole 124a. In some embodiments, the side plate 115 forming the air inlet channel 181 extends into the water storage cavity 180, and the part of the side plate 115 extending into the water storage cavity 180 forms the fourth water blocking member 124.

[0084] In some embodiments, referring to FIG. 1 and FIG. 2, the respirator 100 further comprises a water inlet connector 140 and a water outlet connector 150, the water inlet connector 140 is connected to the shell 110 through the water inlet opening 165, the lumen of the water inlet connector 140 is arranged at an acute angle or a right angle with the first channel in communication with the water inlet opening, and the water outlet connector 150 is connected to the shell 110 through the water outlet opening 166.

[0085] In some embodiments, referring to FIG. 1 and FIG. 3, the outer side of the shell 110 is connected to a fixing buckle 127 for fixing the position, and in some embodiments, the outer side of the shell 110 is connected to an elastic hook to form the fixing buckle 127 for fixing the wire harness. In other embodiments, the outer side of the shell 110 is connected to a clamp, and the clamp forms the fixing buckle 127 for fixing the wire harness.

[0086] For example, referring to FIG. 10, the water inlet channel 161 is provided with a flow stabilizing section 163. The water inlet path, the water overflow path, and the anti-siphon air path of the breather 100 provided by the disclosure are as follows:

[0087] The water inlet path: water flows through the water inlet 165 and the flow stabilizing section 163 of the water inlet channel 161 in sequence, and then enters the containing cavity 170 and acts on the impeller 131 of the water amount detection assembly 130, so that the impeller 131 rotates, the rotating impeller 131 drives the magnetic ring 133 to rotate, the Hall element 132 senses the magnetic ring 133 and sends out a pulse signal to count the number of rotations of the magnetic ring 133, and the water flows to the water outlet channel 162 along with the rotating impeller 131. The water in the water outlet channel 162 is discharged along the water outlet 166 after being buffered by the buffer 125.

[0088] The water overflow path: in the case that the amount of water in the water outlet channel 162 is too large, the water will flow into the water storage cavity 180 through the communication port 183 for temporary storage, and in the case that the amount of water in the water outlet channel 162 is too small, the water in the water storage cavity 180 will flow back to the water outlet channel 162 through the communication port 183.

[0089] The anti-siphon air path: air enters the water storage cavity 180 through the air inlet 182 and the air inlet hole 122a of the second water blocking member 122, and then flows to the water outlet channel 162 through the communication port 183, so as to avoid the phenomenon that the water in the water cup of the dishwasher enters the breather or even the municipal water network due to the siphon effect.

[0090] In a second aspect of the embodiments of the disclosure, an electric appliance is provided, which comprises the breather 100 of any of the embodiments of the first aspect.

[0091] In some embodiments, the electric appliance can be a household dishwasher, a commercial dishwasher, or the like.

[0092] The breather 100 and the electric appliance provided by the disclosure have at least the following advantages:

[0093] (1) The breather 100 is provided with the flow stabilizing section 163, the water outlet speed of the flow stabilizing section 163 is less than the water inlet speed or / and the water outlet speed of the containing cavity 170, so as to stabilize the water outlet speed of the containing cavity 170, the speed fluctuation of the impeller 131 is smaller, the pulse signal of the breather 100 is effectively stabilized, and the detection accuracy of the water inlet amount of the breather 100 is improved.

[0094] (2) The steady flow section 163 adopts a steady flow structure in the shape of a contraction, is provided with at least one of the first water retaining part 121, the water flow channel 160 arranged in layers, and the water outlet channel 162 provided with the buffer part 125, so as to reduce the fluctuation of the water outlet speed of the containing cavity 170, effectively stabilize the pulse signal of the respirator 100, and improve the detection accuracy of the water inlet amount of the respirator 100.

[0095] (3) The blocking part 126 is arranged at the communication opening 183 of the respirator 100, which communicates the water storage cavity 180 and the water outlet channel 162, so as to reduce the aperture of the communication opening 183 and avoid the phenomenon that too much water enters the water storage cavity 180 to cause water spraying of the air inlet channel 181 and the air permeation opening 182.

[0096] (4) The respirator 100 provided by the present disclosure can realize water inlet, water outlet, water flow monitoring and anti-siphon functions in a limited space, has rich functions, occupies small space, and can expand the water inlet amount control and anti-siphon function for the dishwasher and other electrical appliances with limited size and space position.

[0097] In the present disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0098] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0099] In the present disclosure, unless specifically defined and limited otherwise, the terms "connected", "fixed", and the like should be interpreted broadly, for example, "fixed" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements, or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0100] In addition, in the present disclosure, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0101] Although the embodiments of the present disclosure have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. A respirator, the respirator comprising a housing and a water volume detection component, the housing being provided with a water flow channel and a receiving cavity, the water flow channel including an inlet channel and an outlet channel, the inlet channel, the receiving cavity and the outlet channel being sequentially connected, the water volume detection component being disposed in the receiving cavity for detecting the inlet water velocity, and at least a portion of the water flow channel being provided with a flow stabilizing section to slow down the inlet water velocity and / or outlet water velocity of the receiving cavity.

2. The respirator according to claim 1, wherein, The inlet channel and / or the outlet channel are provided with the flow stabilizing section.

3. The respirator according to claim 1 or 2, wherein, The cross-sectional dimension of the flow stabilization section is smaller than that of the water flow channel.

4. The respirator according to claim 3, wherein, At least one end of the stabilizing section is connected to the water flow channel via a transition section, and the cross-sectional dimensions of the transition section increase sequentially in the direction away from the stabilizing section.

5. The respirator according to any one of claims 1-4, wherein, The flow stabilization section is provided with a first water-blocking component, and the first water-blocking component is provided with a water passage hole.

6. The respirator according to claim 5, wherein, One side of the first water-blocking member is connected to the side wall of one side of the flow-stabilizing section, and the other side of the first water-blocking member and the other side wall of the flow-stabilizing section are configured to form the water passage hole.

7. The respirator according to claim 6, wherein, Multiple first water-blocking components are provided at intervals along the direction of water flow. Multiple first water-blocking components are connected to the same side wall of the flow stabilizing section, or multiple first water-blocking components are staggered and connected to two opposite side walls of the flow stabilizing section.

8. The respirator according to any one of claims 1-7, wherein, The water inlet channel is provided in two or more sections, and at least two sections of the water inlet channel are set at acute angles or right angles.

9. The respirator according to claim 8, wherein, The housing is provided with a water inlet, and one of the water inlet channels is connected to the water inlet. The water inlet channel connected to the water inlet and the water inlet have an included angle of less than or equal to 90°.

10. The respirator according to claim 9, wherein, The water inlet channel is provided in two sections. One section of the water inlet channel is connected to the water inlet, and the other section of the water inlet channel is connected to the receiving cavity. The two sections of the water inlet channel are arranged at an acute angle or a right angle.

11. The respirator according to any one of claims 1-10, wherein, The water flow channels are arranged in at least a portion of stacked layers.

12. The respirator according to any one of claims 1-11, wherein, The housing is also provided with a water outlet, which is connected to the water outlet end of the water outlet channel. A buffer is provided inside the water outlet end of the water outlet channel. The buffer is connected to at least a portion of the edge of the water outlet, and the buffer is arranged at an acute angle to the direction of water flow.

13. The respirator according to claim 12, wherein, The buffer is disposed on at least one side of the water outlet end of the water outlet channel in the thickness direction.

14. The respirator according to any one of claims 1-13, wherein, The housing is also provided with a water storage cavity and a vent that are connected to each other. The water outlet end of the water outlet channel is provided with a connecting port that communicates with the water storage cavity. A blocking element is provided in the connecting port to reduce the diameter of the connecting port.

15. The respirator according to claim 14, wherein, The blocking element is disposed on at least one side of the communication port.

16. The respirator according to claim 14 or 15, wherein, The water storage cavity is provided with an air inlet channel, which is connected to the vent. A second water baffle is provided in the air inlet channel, and an air inlet hole is provided on the second water baffle.

17. The respirator according to claim 16, wherein, One side of the second water baffle is connected to one side wall of the air intake channel, and the other side of the second water baffle and the other side wall of the air intake channel form the air intake hole.

18. The respirator according to claim 16 or 17, wherein, Multiple second water-blocking components are provided at intervals along the air intake direction. Multiple second water-blocking components are connected to the same side wall of the air intake channel, or multiple second water-blocking components are staggered and connected to two opposite side walls of the air intake channel.

19. An electrical device comprising the respirator according to any one of claims 1-18.

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