阅读说明：本技术 一种具有进口增速装置的洗碗机及其操作方法 (Dish washing machine with inlet speed increasing device and operation method thereof ) 是由 周水清 卢来发 胡银杰 杨启智 马世超 许彪 于 2021-10-15 设计创作，主要内容包括：本发明公开了一种具有进口增速装置的洗碗机及其操作方法,该装置包括箱体、支架和增速装置,支架设于箱体内,用于置放餐具,增速装置包括导流管和锥管装置,导流管的一端伸入箱体内作为箱体的进口,锥管装置具有较大直径的开口端与导流管伸入箱体内的端部连接,具有较小直径的开口端朝向箱体内,锥管装置的外壁面型线为曲线,外壁面上环向开设有喷射孔,导流管上设有监控显示器,用于监测温度,本发明通过设置进口锥形管,基于渐缩管降压增速原理,提升腔体进口处热风流动速度；锥形管环向开孔,改变热空气喷射方向,优化洗碗机腔内热空气流动状况及温度分布情况；监控洗碗机进口及腔内空气温度,实现温度控制和调节转速,增强用户使用体验感。(The invention discloses a dish washing machine with an inlet speed increasing device and an operation method thereof, the device comprises a box body, a bracket and the speed increasing device, the bracket is arranged in the box body and is used for placing tableware, the speed increasing device comprises a flow guide pipe and a conical pipe device, one end of the flow guide pipe extends into the box body to be used as an inlet of the box body, the conical pipe device is provided with an opening end with a larger diameter and is connected with the end part of the flow guide pipe extending into the box body, the opening end with a smaller diameter faces the box body, the molded line of the outer wall surface of the conical pipe device is a curve, the outer wall surface is annularly provided with a jet hole, and the flow guide pipe is provided with a monitoring display and is used for monitoring temperature; the conical pipe is annularly provided with holes, the hot air injection direction is changed, and the hot air flowing condition and the temperature distribution condition in the dish washer cavity are optimized; the temperature of air in an inlet and a cavity of the dishwasher is monitored, so that temperature control and rotating speed regulation are realized, and the use experience of a user is enhanced.)

1. The utility model provides a dish washer with import accelerator, a serial communication port, including box (1), support (3) and accelerator (4), support (3) locate in box (1) for place tableware (5), accelerator (4) include honeycomb duct (41) and taper pipe device (42), the import as box (1) in box (1) is stretched into to the one end of honeycomb duct (41), end connection in taper pipe device (42) have the open end of major diameter and honeycomb duct (41) stretch into box (1), open end orientation box (1) in the open end that has minor diameter, the outer wall molded lines of taper pipe device (42) are the curve, jet orifice (421) have been seted up to the hoop on the outer wall.

2. The dishwasher with an inlet accelerating device as set forth in claim 1, wherein the outer wall profile and the configuration specific parameters are defined as follows:

1) the vertical axial plane of the taper pipe device (42) is divided into regions, and 2 control points are arranged to control the outer wall molded lines:

taking the central point of the inlet of the box body (1) as a point O, taking the point O as an original point, taking a straight line passing through the point O and along the axial direction of the conical tube device (42) as an X axis, and taking a straight line passing through the point O and along the radial direction of the conical tube device (42) as a Y axis, thereby establishing an XY rectangular coordinate system; let the outer wall molded line be L, select 3 coordinate points on L, and record as A, B and C, where: the point A is the starting point of the L and is also a point on the import circle, the point is taken as a fixed point, and the coordinate is marked as (0, R); the coordinates of the point B and the point C are limited by the position of the tableware (5) in the dishwasher and are regarded as control points of a curve L, and the coordinates are respectively marked as (x)_B，y_B)、(H，y_C) Wherein R is the radius of the larger open end of the cone device (42) and H is the axial length of the cone device (42);

the passing point A is perpendicular L to the Y axis₁The foot is point A, the intersection point of the foot and the contour line of the tableware (5) is point P, and the coordinate of the point P is marked as (x)_PR); let the intersection point of the X-axis and the contour line of the tableware (5) be Q, and the coordinate of the Q point be (X)_Q0), the plate contour line of the sections P and Q is L₂(ii) a Let the area enclosed by points O, A, P and Q be the range of motion of control points B and C, and specify:

x_Q＞x_C＞x_P＞x_B＞x_A (1)

y_A＝y_P＞y_B＞y_C＞y_Q (2)

y_A＝y_P＝21.25 (3)

x_A＝0，y_Q＝0 (4)

2) determining a conical tube wall surface profile function based on the control points B and C and the spline curve function B;

generating a non-uniform quadratic B spline node vector according to a Hartley-Judd algorithm by using the determined control points B and C, wherein k is 2 in order to meet the calculation requirement; according to the Hartley-Judd algorithm, the continuity of the non-uniform B-spline curve is guaranteed, the sum of all edges of a polygon surrounded by control points is considered, the length of nodes in a definition domain is normalized to obtain a node vector, and specifically, the length of a node interval in the definition domain is calculated according to the following formula:

in the formula: l_jIs a control point P_iAnd a control point P_i-1A distance of (l)_j＝|P_i-P_i-1L, wherein P_iAnd P_i-1J is the coordinate of the control point, 1, 2, …, n; and further obtaining a node value as follows:in the formula t_k＝0，t_n+11, i is k +1, k +2 …, n +1, n is the total number of control vertices minus 1;

according to the calculated node vector, calculating a basis function F by using a de Boor-Cox recursion formula_i,k(t) dividing the interval into m parts, thereby obtaining (m +1) values of t which are different from each other, wherein m and k satisfy the following formula in order to satisfy a control relationship:

m+1＝n+k+2 (6)

then, obtaining points on the outer wall molded line in the form of a rectangular coordinate system from the basis functions and the control points; wherein the de Boor-Cox recursion formula is as follows:

in the formula F_i,k(t) wherein in the double subscripts, i is 0,1, …, n;

from this, the outer wall profile function is determined as:

in the formula: p_i(i is 0,1, n) is n +1 control points, and a broken line connected according to the sequence of the control points is a B spline control polygon; f_i,kAnd (t) is a (k-1) th-order B-spline basis function.

3. The dishwasher with the inlet accelerating device according to claim 1, wherein the guiding pipe (41) is provided with a monitor display (43) on the outer wall of the outer part of the cabinet (1), the monitor display (43) comprises a display screen (431) and a temperature control probe (432), the display screen (431) is connected with the guiding pipe (41), one end of the temperature control probe (432) is connected with the display screen (431), and the other end extends into the guiding pipe (41).

4. The dishwasher with an inlet accelerating device according to claim 1 is characterized in that the temperature sensor (2) is arranged on the inner wall of the box body (1) at the same height.

5. The dishwasher having an inlet acceleration mechanism according to claim 1, characterized in that one end of the draft tube (41) is extended into the case (1) and is screw-coupled to the case (1).

6. The dishwasher with an inlet accelerating device according to claim 2, characterized in that the conical pipe device (42) has a diameter equal to the diameter of the flow guide pipe (41) at one end, a diameter of 8-12 mm at the other end, an axial length of 20-30 mm, a diameter of 4-6 mm in the circumferential direction, and is arranged in the axial direction and the circumferential direction at equal intervals; the length of the guide pipe (41) is 45-65 mm.

7. A method of operating a dishwasher having an inlet acceleration arrangement according to claim 1, characterized by the steps of:

1) after the washing of the tableware (5) is finished, the washing program of the dish-washing machine is closed, and the drying program is started;

2) hot air flows through the guide pipe (41), is subjected to pressure reduction and speed increase through the conical pipe device (42), and then is injected into the cavity of the dish washing machine from the injection hole (421) and the outlet of the conical pipe device (42), and the temperature control probe (432) and the temperature sensor (2) are respectively used for monitoring the temperature of the hot air and the temperature in the box body (1);

3) the water drops on the inner surfaces of the tableware (5) and the box body (1) are evaporated by hot air, and the drying is finished;

4) and after drying, the power supply is turned off, the door of the dish washer is opened, and the tableware (5) is taken out.

Technical Field

The invention belongs to the technical field of dish washing machines, and particularly relates to a dish washing machine with an inlet speed increasing device and an operation method thereof.

Background

A dishwasher is a kitchen appliance integrating multiple functions of tableware cleaning, dish drying, temporary storage and the like, and is favored by more and more families. Present dish washer is in order to improve the inside drying effect of cavity, promote comprehensive properties, adopt the hot-blast drying mode to dry mostly, but in actual conditions, chinese meal tableware is of a great variety, it is changeable to put structural style, dish washer cavity inner space is narrow and small simultaneously, compact structure, it is big to cause hot-air to flow the hindrance easily, the difficulty flows, the uneven scheduling problem of temperature distribution, the dish washer comprehensive properties has been influenced to a certain extent, it experiences the sense to reduce the user.

Disclosure of Invention

To solve the above problems, the present invention is directed to a dishwasher having an inlet speed increasing device and a method for operating the same.

In order to achieve the purpose, the following technical scheme is provided:

the utility model provides a dish washer with import accelerating device, includes box, support and accelerating device, the support locate in the box for place the tableware, accelerating device includes honeycomb duct and taper pipe device, the one end of honeycomb duct stretches into the import as the box in the box, the taper pipe device has the open end of great diameter and the end connection that the honeycomb duct stretches into in the box, the open end that has less diameter is internal towards the box, the outer wall molded lines of taper pipe device (are the curve, the jet orifice has been seted up to the hoop on the outer wall, the convergent taper pipe is used for making fluid step-down acceleration rate, the hoop trompil changes the fluid jet direction simultaneously.

Further, the specific parameters of the external wall molded line and the structure are defined as follows:

1) the vertical axial plane of the taper pipe device is divided into regions, and 2 control points are arranged to control the outer wall molded lines:

taking the central point of the inlet of the box body as an O point, taking the O point as an original point, taking a straight line passing through the O point and along the axial direction of the taper pipe device as an X axis, and taking a straight line passing through the O point and along the radial direction of the taper pipe device as a Y axis, thereby establishing an XY rectangular coordinate system; let the outer wall molded line be L, select 3 coordinate points on L, and record as A, B and C, where: the point A is the starting point of the L and is also a point on the import circle, the point is taken as a fixed point, and the coordinate is marked as (0, R); the coordinates of the point B and the point C are limited by the position of the tableware in the dishwasher and are regarded as control points of a curve L, and the coordinates are respectively marked as (x)_B，y_B)、(H，y_C) Wherein R is the radius of the larger opening end of the taper pipe device, and H is the axial length of the taper pipe device;

the passing point A is perpendicular L to the Y axis₁The foot is point A, the intersection point of the foot and the contour line of the tableware is point P, and the coordinate of the point P is marked as (x)_PR); let the intersection point of the X-axis and the contour line of the tableware be Q, and the coordinate of the Q point be (X)_Q0), the plate contour line of the sections P and Q is L₂(ii) a Let the area enclosed by points O, A, P and Q be the range of motion of control points B and C, and specify:

x_Q＞x_C＞x_P＞x_B＞x_A (1)

y_A＝y_P＞y_B＞y_C＞y_Q (2)

y_A＝y_P＝21.25 (3)

x_A＝0，y_Q＝0 (4)

2) determining a conical tube wall surface profile function based on the control points B and C and the spline curve function B;

generating a non-uniform quadratic B spline node vector according to a Hartley-Judd algorithm by using the determined control points B and C, wherein k is 2 in order to meet the calculation requirement; according to the Hartley-Judd algorithm, the continuity of the non-uniform B-spline curve is guaranteed, the sum of all edges of a polygon surrounded by control points is considered, the length of nodes in a definition domain is normalized to obtain a node vector, and specifically, the length of a node interval in the definition domain is calculated according to the following formula:

in the formula: l_jIs a control point P_iAnd a control point P_i-1A distance of (l)_j＝|P_i-P_i-1L, wherein P_iAnd P_i-1J is the coordinate of the control point, 1, 2, …, n; and further obtaining a node value as follows:in the formula t_k＝0，t_n+11, i is k +1, k +2 …, n +1, n is the total number of control vertices minus 1;

according to the calculated node vector, calculating a basis function F by using a de Boor-Cox recursion formula_i,k(t) dividing the interval into m parts, thereby obtaining (m +1) values of t which are different from each other, wherein m and k satisfy the following formula in order to satisfy a control relationship:

m+1＝n+k+2 (6)

then, obtaining points on the outer wall molded line in the form of a rectangular coordinate system from the basis functions and the control points; wherein the de Boor-Cox recursion formula is as follows:

in the formula F_i,k(t) wherein in the double subscripts, i is 0,1, …, n;

from this, the outer wall profile function is determined as:

in the formula: p_i(i is 0,1, n) is n +1 control points, and a broken line connected according to the sequence of the control points is a B spline control polygon; f_i,kAnd (t) is a (k-1) th-order B-spline basis function.

Furthermore, the honeycomb duct be located and be equipped with the monitor display on the outside outer wall of box, the monitor display includes display screen and control by temperature change probe, the display screen is connected with the honeycomb duct, control by temperature change probe one end is connected the other end with the display screen and is stretched into in the honeycomb duct.

Furthermore, the inner wall of the box body is provided with temperature sensors at equal height.

Furthermore, one end of the flow guide pipe extends into the box body and is in threaded connection with the box body.

Furthermore, the diameter of one end of the conical pipe device is equal to that of the flow guide pipe, the diameter of the other end of the conical pipe device is 8-12 mm, the axial length is 20-30 mm, the diameter of the annular opening is 4-6 mm, and the conical pipe device and the flow guide pipe are arranged in the axial direction and the annular direction at equal intervals; the length of the flow guide pipe is 45-65 mm.

A method of operating a dishwasher having an inlet speed increasing device, comprising the steps of:

1) after the washing of the tableware is finished, the washing program of the dish washing machine is closed, and the drying program is started;

2) hot air flows through the flow guide pipe, is subjected to pressure reduction and speed increase through the conical pipe device, and then is injected into the dish washing machine cavity from the injection hole and the outlet of the conical pipe device, and the temperature control probe and the temperature sensor are respectively used for monitoring the temperature of the hot air and the temperature in the box body;

3) the water beads on the inner surface of the tableware and the box body are evaporated by hot air and dried;

4) and after drying, closing the power supply, opening the door of the dishwasher and taking out the tableware.

The invention has the beneficial effects that: according to the invention, the inlet conical pipe is arranged, and the flow speed of hot air at the inlet of the cavity is increased based on the pressure reduction and speed increase principle of the reducer; the conical pipe is annularly provided with holes, the hot air injection direction is changed, and the hot air flowing condition and the temperature distribution condition in the dish washer cavity are optimized; set up digital display device, control dish washer import and intracavity air temperature, realize the real-time digital display of air temperature and the regulation of drying fan rotational speed, the reinforcing user uses and experiences the sense.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a vertical cross-sectional view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is an enlarged view of detail A;

FIG. 5 is an enlarged rectangular coordinate diagram of detail B;

FIG. 6 is a front view of the drogue apparatus of the present invention;

fig. 7 is a flowchart illustrating the operation of the temperature control apparatus of the present invention.

In the figure: 1. a box body; 2. a temperature sensor; 3. a support; 4. a speed increasing device; 41. a flow guide pipe; 42. a taper pipe device; 421. an injection hole; 43. monitoring the display; 431. a display screen; 432. a temperature control probe; 5. a tableware.

Detailed Description

The invention will be further described with reference to the drawings and examples in the following description, but the scope of the invention is not limited thereto.

As shown in fig. 1-4, a dish washer with an inlet speed increasing device comprises a box body 1, a temperature sensor 2, a bracket 3 and a speed increasing device 4, wherein the speed increasing device 4 comprises a flow guide pipe 41, a conical pipe device 42 and a monitoring display 43, the bracket 3 is arranged in the box body 1 and is used for placing tableware 5, one end of the flow guide pipe 41 extends into the box body 1 as an inlet of the box body 1, an open end of the conical pipe device 42 with a larger diameter is connected with an end of the flow guide pipe 41 extending into the box body 1, an open end with a smaller diameter faces into the box body 1, the molded line of the outer wall surface of the conical pipe device 42 is a curve, an injection hole 421 is annularly arranged on the outer wall surface, the flow guide pipe 41 is provided with the monitoring display 43 on the outer wall outside the box body 1, the monitoring display 43 comprises a display screen 431 and a temperature control probe 432, the display screen 431 is connected with the flow guide pipe 41, one end of the temperature control probe 432 is connected with the display screen 431, and the other end of the temperature control probe 432 extends into the flow guide pipe 41, the inner wall of the box body 1 is provided with temperature sensors 2 at equal height.

As shown in fig. 5, the specific parameters of the outer wall profile and the structure are defined as follows:

1) the vertical axial plane of the taper pipe device 42 is divided into regions, and 2 control points are arranged to control the outer wall molded lines:

taking the central point of the inlet of the box body 1 as an O point, taking the O point as an original point, taking a straight line passing through the O point and along the axial direction of the conical tube device 42 as an X axis, and taking a straight line passing through the O point and along the radial direction of the conical tube device 42 as a Y axis, thereby establishing an XY rectangular coordinate system; let the outer wall molded line be L, select 3 coordinate points on L, and record as A, B and C, where: the point A is the starting point of the L and is also a point on the import circle, the point is taken as a fixed point, and the coordinate is marked as (0, R); the coordinates of the points B and C are limited by the position of the dishware 5 inside the dishwasher and are regarded as control points of the curve L, and the coordinates are respectively marked as (x)_B，y_B)、(H，y_C) Wherein R is the radius of the larger open end of the cone device (42) and H is the axial length of the cone device (42);

the passing point A is perpendicular L to the Y axis₁The foot is point A, the intersection point of the foot and the contour line of the tableware (5) is point P, and the coordinate of the point P is marked as (x)_PR); let the intersection point of the X-axis and the contour line of the tableware (5) be Q, and the coordinate of the Q point be (X)_Q0), the plate contour line of the sections P and Q is L₂(ii) a Let the area enclosed by points O, A, P and Q be the range of motion of control points B and C, and specify:

x_Q＞x_C＞x_P＞x_B＞x_A (1)

y_A＝y_P＞y_B＞y_C＞y_Q (2)

y_A＝y_P＝21.25 (3)

x_A＝0，y_Q＝0 (4)

2) determining a conical tube wall surface profile function based on the control points B and C and the spline curve function B;

generating a non-uniform quadratic B spline node vector according to a Hartley-Judd algorithm by using the determined control points B and C, wherein k is 2 in order to meet the calculation requirement; according to the Hartley-Judd algorithm, the continuity of the non-uniform B-spline curve is guaranteed, the sum of all edges of a polygon surrounded by control points is considered, the length of nodes in a definition domain is normalized to obtain a node vector, and specifically, the length of a node interval in the definition domain is calculated according to the following formula:

in the formula: l_jIs a control point P_iAnd a control point P_i-1A distance of (l)_j＝|P_i-P_i-1L, wherein P_iAnd P_i-1J is the coordinate of the control point, 1, 2, …, n; and further obtaining a node value as follows:in the formula t_k＝0，t_n+11, i is k +1, k +2 …, n +1, n is the total number of control vertices minus 1;

according to the calculated node vector, calculating a basis function F by using a de Boor-Cox recursion formula_i,k(t) dividing the interval into m parts, thereby obtaining (m +1) values of t which are different from each other, wherein m and k satisfy the following formula in order to satisfy a control relationship:

m+1＝n+k+2 (6)

then, obtaining points on the outer wall molded line in the form of a rectangular coordinate system from the basis functions and the control points; wherein the de Boor-Cox recursion formula is as follows:

in the formula F_i,k(t) wherein in the double subscripts, i is 0,1, …, n;

thus, the profile function of the outer wall surface of the taper pipe is determined as follows:

in the formula: p_i(i is 0,1, n) is n +1 control points, and a broken line connected according to the sequence of the control points is a B spline control polygon; f_i,kAnd (t) is a (k-1) th-order B-spline basis function.

As shown in fig. 6, the outer wall of the end portion of the draft tube 41 connected to the taper tube device 42 is threaded and is threaded to the case 1.

As shown in fig. 7, the drying fan is started, the rotating speed of the fan is kept stable, hot air starts to be conveyed into the cavity of the dishwasher, the temperature control probe 432 detects the air temperature in the cavity, and the average value of the multipoint temperatures is displayed on the display screen 431 in real time, when the average value of the multipoint temperatures is less than 60 ℃, the drying fan keeps the current rotating speed unchanged, and the hot air is continuously conveyed into the cavity of the dishwasher; when the average value of the temperatures of the multiple points is more than 60 ℃, the rotating speed of the drying fan is reduced, and the hot air delivery volume of the cavity of the dish-washing machine is reduced.