Flange plate for washing pump and dishwasher

Abstract

The utility model discloses a kind of flange plate for washing pump and dish-washing machine, the flange plate for washing pump, including disc body, disc body has ring groove, ring groove has bottom wall, inner ring wall that is surrounded in bottom wall inside and outer ring wall that is surrounded in bottom wall outside, flange plate further include guiding structure, guiding structure is set on at least one of bottom wall, inner ring wall and / or outer ring wall, guiding structure includes the multiple first texturing structure of interval arrangement and the multiple second texturing structure of interval arrangement, first texturing structure and second texturing structure between angle cross arrangement.The utility model can solve for the heater assembly in the water-electric separation type washing pump of dish-washing machine in the prior art, when heater and flange plate are connected by brazing welding, there is the problem that brazing paste flows difficultly after high-temperature melting due to heater and flange mating groove side wall vertical design, the surface of both side walls is very close after pressing, leading to.

Description

Technical Field

[0001] This utility model relates to the technical field of dishwasher accessories, specifically to a flange for a washing pump and a dishwasher. Background Technology

[0002] As people's living standards improve, dishwashers, as a modern home appliance, have gradually entered thousands of households. Among the core components of a dishwasher, the wash pump and its heater assembly play a crucial role, responsible for providing hot water circulation to ensure washing results.

[0003] Currently, most dishwashers on the market use a water-electricity separation design for their wash pumps. The heater assembly typically consists of two main components: the heater and the flange. As a crucial part of the heater assembly, the flange not only secures the heater but also effectively conducts heat. In existing technology, the heater and flange are primarily connected using brazing. This involves creating an annular groove on the flange, placing the heater within it, and then firmly connecting the two using brazing material.

[0004] However, in existing technologies, dishwashers using water-electricity separation washing pumps have a common technical problem with their heater assemblies: when the heater and flange are connected by brazing, the sidewalls of the heater and flange mating grooves are typically designed vertically, resulting in a very tight fit between their sidewall surfaces after pressing. This tight fit makes it difficult for the brazing paste to flow after melting at high temperatures, failing to fully fill the gaps between the contact surfaces. Simultaneously, the brazing paste generates a large amount of gas during high-temperature melting, but due to the excessively tight fit, this gas cannot be effectively expelled, causing the molten brazing material to not completely fill the gap between the heating element and the flange surface. In this situation, localized voids can easily occur, leading to uneven heat transfer during high-temperature operation. In severe cases, this can even cause the heating wire to overheat and melt at the voided areas, resulting in a short circuit and affecting the dishwasher's normal service life and safety.

[0005] Therefore, how to improve the connection interface between the heater and the flange, improve the brazing quality, and ensure uniform heat conduction has become an urgent technical problem to be solved. Utility Model Content

[0006] The purpose of this utility model is to provide a flange for a washing pump and a dishwasher, which solves the technical problem in the heater assembly of the water-electricity separation washing pump of the prior art. When the heater and the flange are connected by brazing, the side wall surfaces of the heater and the flange are very tightly attached after pressing due to the vertical design of the side wall of the mating groove. This makes it difficult for the brazing paste to flow after melting at high temperature.

[0007] The above-mentioned objectives of this utility model are mainly achieved by the following technical solutions:

[0008] This utility model provides a flange for a washing pump, including a disc body with an annular groove. The annular groove has a bottom wall, an inner annular wall surrounding the inner side of the bottom wall, and an outer annular wall surrounding the outer side of the bottom wall. The flange also includes a guide structure disposed on at least one of the bottom wall, the inner annular wall, and / or the outer annular wall. The guide structure includes a plurality of first textured structures and a plurality of second textured structures spaced apart, with the first textured structures and the second textured structures intersecting at an angle.

[0009] According to one embodiment of the present invention, the first texture structure is a groove or a ridge, and / or the second texture structure is a groove or a ridge.

[0010] According to one embodiment of the present invention, the first texture structure is an annular texture structure arranged along the circumferential direction of the disc body, and the second texture structure is a strip-shaped texture structure extending along the radial direction of the disc body.

[0011] According to one embodiment of the present invention, the striped texture structure extends radially outward from the center of the disc body, and the plurality of annular texture structures are arranged in multiple concentric circles with the center of the disc body as the center.

[0012] According to one embodiment of the present invention, the first texture structure and the second texture structure are intersected to form multiple grids, and the shape of each grid is a parallelogram.

[0013] According to one embodiment of the present invention, the spacing between any two adjacent first texture structures and the spacing between any two adjacent second texture structures are both 1.5 mm.

[0014] According to one embodiment of the present invention, the distance between the first texture structure and the groove surface of the annular groove is greater than or equal to 0.1 mm, and / or the distance between the second texture structure and the groove surface of the annular groove is greater than or equal to 0.1 mm.

[0015] According to one embodiment of the present invention, when the guide structure is provided on the inner ring wall and / or the outer ring wall, the height of the guide structure from the surface of the flange is 0.02mm to 0.5mm.

[0016] This utility model also provides a dishwasher, including a flange for a washing pump as described above.

[0017] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0018] This invention relates to a flange for a washing pump. The guiding structure machined in the annular groove allows the high-temperature molten brazing material to rapidly wet and diffuse along the groove under siphon action. The liquid brazing material quickly fills the gap between the heating tube and the annular groove surface of the flange. Simultaneously, it allows the gas generated during high-temperature brazing to be rapidly discharged along the groove circumferentially and radially, avoiding the phenomenon of insufficient filling of localized trapped gas in the liquid brazing material. Furthermore, the uniform filling of the weld seam between the heating tube and the flange improves the heat transfer efficiency of the heating tube, thereby increasing the heating efficiency of the washing pump. Additionally, the uniform filling of the weld seam between the heating tube and the flange ensures uniform heating of the flange, reducing thermal stress during heater operation and extending the heater's lifespan. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a perspective view of one embodiment of the flange of this utility model.

[0021] Figure 2 This is a top view of an embodiment of the flange of this utility model.

[0022] Figure 3 This is a perspective view of another embodiment of the flange of this utility model.

[0023] Figure 4 This is a side sectional view of the flange of this utility model.

[0024] Figure 5 This is a side sectional view of another flange of this utility model.

[0025] Figure 6 This is a partial sectional side view of the flange of this utility model.

[0026] Figure 7 This is a flowchart illustrating the manufacturing method of combining the heater and flange of this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Disc body; 11. Annular groove; 111. Bottom wall; 112. Inner annular wall; 113. Outer annular wall;

[0029] 2. Guiding structure; 21. First texture structure; 22. Second texture structure; 23. Intersection node; 24. Mesh. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0031] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Implementation Method 1

[0034] like Figure 1 As shown, this utility model provides a flange for a washing pump, including a flange body 1. The flange body 1 has an annular groove 11. The annular groove 11 has a bottom wall 111, an inner annular wall 112 surrounding the inner side of the bottom wall 111, and an outer annular wall 113 surrounding the outer side of the bottom wall 111. The flange also includes a guide structure 2, which is disposed on at least one of the bottom wall 111, the inner annular wall 112, and / or the outer annular wall 113. The guide structure 2 includes a plurality of first textured structures 21 spaced apart and a plurality of second textured structures 22 spaced apart. The first textured structures 21 and the second textured structures 22 are arranged at an angle to each other.

[0035] The flange for the washing pump of this invention, when brazed to the heating pipe, allows the high-temperature molten brazing material to rapidly wet and diffuse along the guide structure 2 under siphon action, quickly filling the gap between the heating pipe and the surface of the annular groove 11 of the flange. Simultaneously, the gas generated during high-temperature brazing can be rapidly discharged from the annular groove 11 circumferentially and radially along the guide structure 2, avoiding the phenomenon of insufficient filling of localized trapped gas in the liquid brazing material.

[0036] Specifically, the plate 1 is generally circular in shape and has an annular groove 11 for placing the heating tube, and the guide structure 2 is disposed in the annular groove 11.

[0037] The guide structure 2 includes multiple first textured structures 21 and multiple second textured structures 22. The first textured structures 21 and the second textured structures 22 are arranged at an angle to each other, thereby forming cross nodes 23 between the first textured structures 21 and the second textured structures 22. The presence of these cross nodes 23 allows the solder (regardless of where it is applied to the guide structure 2) to flow along the first textured structures 21 and the second textured structures 22, thereby quickly wetting and spreading, so that each contact position between the heating tube and the annular groove 11 can be filled with solder, making the weld between the heating tube and the flange more secure.

[0038] In this utility model, the guide structure 2 can be disposed on the bottom wall 111; or, the guide structure 2 can be disposed on the inner ring wall 112; or, the guide structure 2 can be disposed on the outer ring wall 113; or, the guide structure can be disposed on both the bottom wall 111 and the inner ring wall 112; or, the guide structure 2 can be disposed on both the bottom wall 111 and the outer ring wall 113; or, the guide structure 2 can be disposed on the bottom wall 111, the inner ring wall 112, and the outer ring wall 113 simultaneously.

[0039] In this embodiment, as Figure 4 As shown, for the annular groove 11 with an arc-shaped bottom wall 111, the guide structure 2 is provided on the arc-shaped bottom wall 111, as well as the inner annular wall 112 and the outer annular wall 113; similarly, as Figure 5 As shown, for the annular groove 11, whose bottom wall 111 is a plane, the guide structure 2 is provided on the plane bottom wall 111, as well as the inner annular wall 112 and the outer annular wall 113.

[0040] According to one embodiment of the present invention, the first texture structure 21 is a groove or a ridge, and / or the second texture structure 22 is a groove or a ridge.

[0041] Specifically, in one feasible embodiment, the first texture structure 21 is a groove and the second texture structure 22 is a ridge; or, the first texture structure 21 is a ridge and the second texture structure 22 is a groove. This combination of groove and ridge design can form a more complex surface structure, further enhance the siphon effect, and promote the flow of solder and the discharge of gas.

[0042] In another feasible embodiment, the first textured structure 21 is a groove, and the second textured structure 22 is a groove. This double-groove design facilitates the machining of the first textured structure 21 and the second textured structure 22 within the annular groove 11 of the disk body 1, thereby also making it easier for solder to flow within the annular groove 11.

[0043] In another feasible embodiment, the first texture structure 21 is a raised ridge, and the second texture structure 22 is a raised ridge. This double-raised ridge design is more conducive to promoting the flow of solder.

[0044] According to one embodiment of this utility model, the first texture structure 21 is an annular texture structure arranged along the circumferential direction of the disk body 1, and the second texture structure 22 is a strip-shaped texture structure extending along the radial direction of the disk body 1. This design combining annular and radial directions allows the solder to flow evenly in all directions of the annular groove 11, avoiding local accumulation or missing parts.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, the striped pattern extends radially outward from the center of the disk 1, and is evenly spaced along the circumference of the annular groove 11. Multiple annular patterns are arranged concentrically around the center of the disk 1. In this embodiment, the striped and annular patterns intersect, with an angle approximately 90 degrees between them. This combination of radial and concentric design ensures that the solder is evenly distributed radially inward from the bottom of the annular groove 11 towards the inner annular wall 112, and also evenly distributed radially outward from the bottom of the annular groove 11 towards the outer annular wall 113, facilitating gas discharge from all directions.

[0046] According to one embodiment of the present invention, such as Figure 3 As shown, the first texture structure 21 and the second texture structure 22 are intersected to form multiple grids 24, each grid 24 being a parallelogram in shape. This parallelogram grid structure increases the surface area, improves the adhesion of the solder, and also creates more gas venting channels.

[0047] Specifically, both the first texture structure 21 and the second texture structure 22 are strip-shaped texture structures. Multiple first texture structures 21 are arranged in parallel at equal intervals, and multiple second texture structures 22 are arranged in parallel at equal intervals. After they intersect, they are formed on the bottom wall 111, inner ring wall 112 and outer ring wall 113 of the annular groove 11. That is, the extension direction of multiple first texture structures 21 can form an angle with the radial direction of the flange (for example, an acute angle in the clockwise direction). At the same time, the extension direction of multiple second texture structures 22 can form another angle with the radial direction of the flange (for example, an acute angle in the counterclockwise direction).

[0048] In this embodiment, the parallelogram grid 24 formed between the multiple first texture structures 21 and the multiple second texture structures 22 arranged in an alternating manner can be rhomboid.

[0049] According to one embodiment of this utility model, the spacing between any two adjacent first texture structures 21 and the spacing between any two adjacent second texture structures 22 are both 1.5 mm. This precise spacing design ensures that the texture structures are neither too dense to affect the flow of solder, nor too sparse to result in insufficient siphon effect.

[0050] According to one embodiment of the present invention, such as Figure 6 As shown, the distance h1 between the first textured structure 21 and the groove surface of the annular groove 11 is 0.1 mm, and / or the distance h2 between the second textured structure 22 and the groove surface of the annular groove 11 is 0.1 mm. This appropriate height difference can maximize the siphon effect and gas discharge function without affecting the insertion of the heating tube.

[0051] According to one embodiment of this utility model, with guide structures 2 provided on both the inner ring wall 112 and the outer ring wall 113, the height of the guide structure 2 from the surface of the flange is 0.02mm to 0.5mm. This design ensures that after the heating tube is inserted into the ring groove 11, adequate space is still maintained for the flow of brazing filler metal and the discharge of gas.

[0052] Through the above design, the flange for the washing pump of this utility model solves the problems of difficult brazing material flow and poor gas discharge in the brazing process of traditional flanges, making the weld gap between the heating tube and the flange uniformly filled, improving the heat transfer efficiency of the heating tube, and making the flange more uniformly heated, reducing the thermal stress of the heater during operation and improving the service life of the heater.

[0053] The flange for a washing pump of this utility model, when combined with a heater (which is a C-type heating tube), is manufactured using the following steps, as follows: Figure 7 As shown:

[0054] Step S1: Apply multiple solder dots at intervals within the annular groove 11 of the flange. In this embodiment, the solder dots are located on the bottom wall 111 of the annular groove 11, with 5 to 10 dots, preferably 7, evenly distributed on the bottom wall 111 of the annular groove 11. This even distribution of solder dots on the bottom wall 111 of the annular groove 11 ensures that the solder at each dot can melt and evenly fill the gap between the heater and the flange during subsequent heating.

[0055] Step S2: Place the heater inside the flange, with a gap between the heater and the flange.

[0056] Specifically, the heater is placed within the annular groove 11 of the flange, with a distance greater than or equal to 0.5 mm between the heater and the bottom wall 111 of the annular groove 11, preferably 0.8 mm. This distance ensures that the heater can be smoothly inserted into the flange while providing adequate space for subsequent solder melting, ensuring sufficient space for the solder to flow and fill the gaps.

[0057] Step S3: Apply pressure to the heater, pressing it into the annular groove 11 of the flange. In this embodiment, the pressure applied to the heater is greater than or equal to 50 tons, preferably 60 tons. This pressure is sufficient to ensure a tight fit between the heater and the flange without damaging the structure of the heater or the flange.

[0058] Step S4: Heat the heater and flange to melt the solder at each solder point. During the heating process, the guiding structure 2 plays an important role, allowing the high-temperature molten brazing solder to quickly wet and flow along the grooves under the siphon effect, rapidly filling the gap between the heater and the annular groove surface of the flange. Simultaneously, the gas generated during high-temperature brazing can be quickly discharged circumferentially and radially along the grooves, avoiding insufficient localized gas trapping in the liquid solder.

[0059] Through the above manufacturing method, the weld gap between the heater and the flange is filled evenly, the heat transfer efficiency of the heater is improved, the flange is heated more evenly, the thermal stress during the heater operation is reduced, and the service life of the heater is improved.

[0060] Implementation Method 2

[0061] This embodiment provides a dishwasher that includes the flange for the washing pump described in Embodiment 1. The structure of the flange for the washing pump is the same as that described in Embodiment 1, and will not be repeated here.

[0062] The flange in this dishwasher uses the same type of flange used for the wash pump as described in Embodiment 1, which solves the problem of brazing the flange to the heating element in traditional dishwashers. Because the flange used for the wash pump has a special textured structure design, the high-temperature molten brazing material can be quickly wetted and diffused under siphon action. Simultaneously, the gas generated during high-temperature brazing can be quickly discharged, resulting in a more uniform filling of the weld gap between the heating element and the flange.

[0063] This design not only improves the heat transfer efficiency of the heating element, thereby increasing the overall heating efficiency of the dishwasher, but also makes the flange more evenly heated, reducing thermal stress during heater operation and extending the service life of the heater in the dishwasher. Through these improvements, the dishwasher provided in this embodiment can achieve more efficient water heating and a longer service life, improving the overall performance and user experience of the dishwasher.

[0064] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A flange plate for a washing pump comprising a plate body having a ring groove with a bottom wall, an inner ring wall surrounding the inside of the bottom wall, and an outer ring wall surrounding the outside of the bottom wall, characterized in that, The flange further includes a guide structure disposed on at least one of the bottom wall, the inner ring wall, and / or the outer ring wall. The guide structure includes a plurality of first textured structures spaced apart and a plurality of second textured structures spaced apart, wherein the first textured structures and the second textured structures are arranged at an angle to each other.

2. The flange for a washing pump as described in claim 1, characterized in that, The first texture structure is a groove or a ridge, and / or the second texture structure is a groove or a ridge.

3. The flange for a washing pump as described in claim 1 or 2, characterized in that, The first texture structure is an annular texture structure arranged along the circumference of the disc body, and the second texture structure is a strip-shaped texture structure extending along the radial direction of the disc body.

4. The flange for a washing pump as described in claim 3, characterized in that, The striped texture structure extends radially outward from the center of the disc body, and the multiple annular texture structures are arranged in concentric circles with the center of the disc body as the center.

5. The flange for a washing pump as described in claim 1 or 2, characterized in that, The first texture structure and the second texture structure are intersected to form multiple grids, and each grid is a parallelogram in shape.

6. The flange for a washing pump as described in claim 1 or 2, characterized in that, The spacing between any two adjacent first texture structures and the spacing between any two adjacent second texture structures are both 1.5 mm.

7. The flange for a washing pump as described in claim 2, characterized in that, The distance between the first texture structure and the groove surface of the annular groove is greater than or equal to 0.1 mm, and / or the distance between the second texture structure and the groove surface of the annular groove is greater than or equal to 0.1 mm.

8. The flange for a washing pump as described in claim 1, characterized in that, With the guide structure provided on the inner ring wall and / or the outer ring wall, the height of the guide structure from the surface of the flange is 0.02mm to 0.5mm.

9. A dishwasher, characterized in that, Includes the flange for the washing pump as described in any one of claims 1 to 8.

Images