CN213958834U

CN213958834U - Button waterproof construction and dish washer

Info

Publication number: CN213958834U
Application number: CN202023120949.5U
Authority: CN
Inventors: 刘文科; 叶晨风
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-13
Anticipated expiration: 2030-12-22

Abstract

The application provides a button waterproof structure and a dish washing machine with the same, wherein the button waterproof structure comprises a control panel, a main control panel and buttons; the control panel is provided with a mounting hole and a drainage piece inside, and the drainage piece is provided with a waterproof boss protruding towards the mounting hole; the main control board is arranged in the control panel, and a touch part which can be contained in the inner cavity of the waterproof boss is convexly arranged on the main control board; the button includes press head and guide arm, and the press head is located the mounting hole, and guide arm one end is connected with the press head, and the guide arm other end stretches into in the waterproof boss and touches according to the contact. The application provides a button waterproof construction is through setting up the drainage piece that has waterproof boss in control panel to make the water that gets into in control panel difficult to cross waterproof boss, and can discharge from drainage piece, and can not follow the guide arm of button and enter into the main control board on, effectively improve the waterproof performance of button.

Description

Button waterproof construction and dish washer

Technical Field

The application belongs to the technical field of kitchen appliances, and more specifically relates to a button waterproof construction and dish washer.

Background

Nowadays, as the standard of living is improved, more and more people choose to use a dishwasher to replace the tedious housework of washing dishes manually. For the operation of convenience of customers control dish washer, be equipped with control panel on dish washer's cabinet door usually, be equipped with the main control board that can control the operation of dish washer in control panel's inside, still be equipped with a plurality of mounting holes on control panel, install the button that can be connected with the main control board in the mounting hole. However, since the dishwasher is used in a wet environment such as a kitchen for a long time and is easily contaminated with oil stains, a user may use a cleaning agent or a wet rag to clean the surface of the dishwasher, especially the control panel, and may have water sprayed onto the control panel during the use of the dishwasher, during these processes, the water may enter the control panel from the mounting hole, and the core control components of the dishwasher, such as the main control panel, are all built in the control panel, so how to improve the waterproof performance at the keys becomes a key and urgent problem in the waterproof protection of the control panel.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a button waterproof construction to solve the relatively poor technical problem of button waterproof nature on the dish washer control panel that exists among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a waterproof structure for a key, including:

the control panel is provided with a mounting hole and a drainage piece formed inside the mounting hole, and a waterproof boss protruding towards the mounting hole is formed on the drainage piece;

the main control board is arranged in the control panel, and a touch part which can be contained in the inner cavity of the waterproof boss is convexly arranged on the main control board; and the number of the first and second groups,

the key comprises a pressing head and a guide rod, wherein the pressing head is positioned in the mounting hole, one end of the guide rod is connected with the pressing head, and the other end of the guide rod extends into the waterproof boss to be contacted with the touch pressing part.

Optionally, the drainage member and the inner wall surface of the control panel enclose to form a drainage cavity, the cavity bottom surface of the drainage cavity is opposite to the mounting hole, and the cavity bottom surface of the drainage cavity is arranged along the radial direction and is inclined towards the direction away from the mounting hole.

Optionally, the inclination angle of the cavity bottom surface of the drain cavity ranges from 2 to 3 degrees.

Optionally, the cross section of the waterproof boss is stepped;

the through-hole with the guide arm adaptation is seted up on the top end face of waterproof boss orientation press head, has the interval between the top end face of waterproof boss and the press head.

Optionally, the guide rod is sleeved with an elastic piece, one end of the elastic piece is elastically abutted to the pressing head, and the other end of the elastic piece is elastically abutted to the waterproof boss.

Optionally, the guide rod is sleeved with an elastic sealing element, one end of the elastic sealing element is in sealing butt joint with the inner side face of the pressing head, and the other end of the elastic sealing element is in sealing sleeve joint with the waterproof boss.

Optionally, the guide rod, the waterproof boss and the touch part are arranged in a concentric shaft mode, and the outer diameter of the waterproof boss is smaller than the aperture of the mounting hole.

Optionally, a drainage channel is formed inside the control panel, and the drainage cavity is communicated with the outside through the drainage channel.

Optionally, the pressing head is further provided with a connecting buckle extending towards the main control panel, and the key is in limit clamping connection with the control panel through the connecting buckle.

The application also provides a dishwasher, which comprises the button waterproof structure.

The application provides a button waterproof construction's beneficial effect lies in: compared with the prior art, in the button waterproof construction of this application, owing to be equipped with the drainage component in control panel's inside, and be equipped with waterproof boss on the drainage component, hold in the inner chamber of waterproof boss and have protruding touch portion of establishing on the main control board, so water gets into the inside back of control panel from the clearance between the press head of mounting hole and button, just can discharge along outer wall and the drainage component of waterproof boss, and can not flow into on the main control board along the guide arm of button. In other words, after the waterproof boss is arranged on the drainage piece, the only water inlet point between the drainage piece and the key is completely hidden inside the press head of the key, and the waterproof boss has enough height, so that water entering the control panel is difficult to overflow the waterproof boss, and thus, the water is effectively prevented from flowing into the main control board from a hole between the guide rod hole and the waterproof boss, and meanwhile, the water retained at the bottom of the waterproof boss can be discharged through the drainage piece. Therefore, the key waterproof structure can be designed through the drainage piece and the waterproof boss, water can be safely and effectively guided away, the water is prevented from entering the main control board area, extra cost input is not needed in the key waterproof structure, and the key waterproof structure can be realized only by molding through a mold, so that the technical scheme is a simple and reliable waterproof scheme and has good economical efficiency and easy popularization.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of a portion of a dishwasher including a control panel according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a partial structural sectional view of an angle of a waterproof structure of a key according to an embodiment of the present disclosure;

fig. 4 is a partial structural sectional view of another angle of the waterproof structure of the key according to an embodiment of the present application;

fig. 5 is a partial structural sectional view of a waterproof structure for a key according to another embodiment of the present application.

The reference numbers illustrate:

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present application are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The embodiment of the application provides a button waterproof construction.

Referring to fig. 2 to 4, in an embodiment, the waterproof structure for a button is mainly applied to a dishwasher, and of course, the waterproof structure for a button of the present application may be applied to other electrical appliances with a suitable installation structure. In the present embodiment, the key waterproof structure includes a control panel 100, a main control panel 200 and keys 300. Wherein, the control panel 100 is usually disposed on the cabinet door 400 of the dishwasher, the control panel 100 is provided with a plurality of mounting holes 110, each mounting hole 110 is provided with a key 300 capable of realizing corresponding function control, a drainage member 120 is formed inside the control panel 100, and meanwhile, a waterproof boss 130 protruding towards the mounting hole 110 is formed on the drainage member 120. The main control panel 200 is further accommodated in the inner cavity of the control panel 100, the main control panel 200 is a core control component of the dishwasher and is mainly used for controlling various operations of the dishwasher, here, in order to facilitate a user to realize corresponding function control through the related key 300, the position of the main control panel 200 corresponding to the key 300 is convexly provided with the touch portion 210, and the touch portion 210 is accommodated in the inner cavity of the waterproof boss 130, that is, the waterproof boss 130 covers the touch portion 210 of the main control panel 200, and the drain member 120 is located on one side of the main control panel 200 facing the mounting hole 110. The key 300 includes a guide rod 320 extending into the control panel 100 and a pressing head 310 located in the mounting hole 110; one end of the guide rod 320 is integrally connected with the pressing head 310, and the other end thereof extends into the waterproof boss 130 to contact with the touch part 210; here, the touch portion 210 can be regarded as a light touch key, and when the key 300 above the light touch portion is pressed downward, the pressing head 310 drives the guide rod 320 to move toward the touch portion 210 until the free end of the guide rod 320 contacts the touch portion 210, so as to trigger the touch portion 210 to open or close the corresponding function.

Based on the structural design, in the embodiment, since the drainage member 120 is disposed inside the control panel 100, the drainage member 120 is provided with the waterproof boss 130, and the touch portion 210 convexly disposed on the main control panel 200 is accommodated in the inner cavity of the waterproof boss 130, water can enter the control panel 100 from the gap between the mounting hole 110 and the pressing head 310 of the key 300, and then can be discharged along the outer wall of the waterproof boss 130 and the drainage member 120, and cannot flow into the main control panel 200 along the guide rod 320 of the key 300. In other words, after the waterproof boss 130 is disposed on the drainage member 120, the only water inlet point between the drainage member 120 and the button 300 is completely hidden inside the pressing head 310 of the button 300, and the waterproof boss 130 has a sufficient height, so that water entering the control panel 100 is difficult to overflow the waterproof boss 130, thus effectively preventing water from flowing into the main control board 200 through the hole between the guide rod 320 and the waterproof boss 130, and simultaneously, water remaining at the bottom of the waterproof boss 130 can be discharged through the drainage member 120. Therefore, the key waterproof structure can be designed through the drainage piece 120 and the waterproof boss 130, water can be safely and effectively guided away, the water is prevented from entering the main control board 200 area, extra cost input is not needed in the key waterproof structure, and the key waterproof structure can be realized only by molding through a mold, so that the key waterproof structure is a simple and reliable waterproof scheme and has good economical efficiency and easy popularization.

Referring to fig. 1, it should be noted that the dishwasher generally includes an inner container and a cabinet door 400 covering the inner container, the cabinet door 400 is generally formed by splicing an inner door 410 and an outer door 420, and the control panel 100 is generally disposed at an upper region of the cabinet door 400. Specifically, in the present embodiment, the height direction of the cabinet door 400 is taken as the vertical direction, the control panel 100 is a flat and long box shape and is installed on the top of the cabinet door 400, and the plurality of keys 300 are also arranged on the top surface of the control panel 100. Other components, such as, but not limited to, a display panel 140 and a plurality of indicator lights 150, are disposed on the top surface of the control panel 100, and are electrically connected to the main control panel 200 built in the control panel 100 to implement the related display function. In addition, in order to maintain the aesthetic consistency between the top surface of the control panel 100 and the cabinet door 400, the top surface of the control panel 100 is further attached with a stainless steel attaching surface 160 through a double-sided adhesive tape 170.

In order to facilitate pressing by a user, the outer side surface of the pressing part, which faces away from the main control board 200, is an outwardly convex arc surface, the guide rod 320 and the pressing part are integrally formed by injection molding, the guide rod 320 comprises a first rod section 321 connected with the pressing part and a second rod section 322 formed by extending from the first rod section 321 towards the touch and press part 210, and the second rod section 322 is in the waterproof boss 130; wherein the diameter of the first rod segment 321 is greater than the diameter of the second rod segment 322, thereby forming a limit step at the junction of the first rod segment 321 and the second rod segment 322. When the key 300 is not pressed down, the outer side surface of the pressing part slightly protrudes out of the stainless steel facing 160, meanwhile, a gap exists between the free end of the second rod section 322 and the touch part 210, and the guide rod 320 is not in contact with the touch part 210; after the key 300 is pressed, the pressing head 310 and the guide rod 320 both move towards the touch part 210, and then the free end of the guide rod 320 contacts with the touch part 210 to complete triggering, of course, the movement stroke of the guide rod 320 is limited, and when the guide rod 320 moves to the limit step to abut against the end surface of the top end of the waterproof boss 130, the guide rod 320 cannot move.

Further, as shown in fig. 2 and 3, in an embodiment, the pressing head 310 is further provided with a connecting buckle 330 extending toward the main control board 200, and the key 300 is in limit clamping connection with the control panel 100 through the connecting buckle 330. Specifically, the connection buckle 330 is an elastic buckle having a certain elastic deformation, and two connection buckles 330 are symmetrically arranged on two sides of the outer edge of the pressing head 310. The connecting buckle 330 has a convex hook, correspondingly, a corresponding blocking protrusion 180 is arranged inside the control panel 100, and the button 300 is blocked into the blocking protrusion 180 through the hook to realize detachable clamping with the control panel. Of course, in other embodiments, the key 300 and the control panel 100 may be detachably connected, but in this embodiment, the snap connection has an advantage of being more convenient to assemble and disassemble.

Referring to fig. 2 to 4, in an embodiment, the inner wall surface of the control panel 100 and the drainage member 120 enclose a drainage cavity 121, the drainage cavity 121 is communicated with the mounting hole 110, and the mounting hole 110 is opposite to the cavity bottom surface of the drainage cavity 121; of course, in practical design, a drain cavity 121 as wide as possible is left between the lower side of the key 300 and the inner wall surface of the control panel 100 to prevent water from flowing onto the main control panel 200 over the top end of the waterproof boss 130. Here, in order to obtain a better drainage effect, the bottom surface of the drainage cavity 121 is arranged along the radial direction and is inclined in the direction away from the mounting hole 110; in other words, the chamber bottom surface of drainage chamber 121 is the inclined plane that has the water guide effect, after water gets into drainage chamber 121 from the gap between button 300 and stainless steel wainscot 160 or control panel 100, under the inclined plane of drainage chamber 121 bottom was the effect of drainage chamber 121, water just can be led away fast, and simultaneously, through the setting of waterproof boss 130, the water inlet point between waterproof boss 130 and the button 300 is lifted to enough height again, thereby can realize safe effectual leading away with water and avoid water to get into the regional purpose of main control board 200, that is to say, the slope design of drainage chamber 121 chamber bottom surface and the design of waterproof boss 130 both cooperate, can further improve the waterproof drainage effect of this button waterproof construction.

Further, in the present embodiment, the inclination angle of the cavity bottom surface of the drain cavity 121 is preferably in the range of 2 to 3 degrees. It can be understood that when the inclination of the bottom surface of the drain chamber 121 is within this preferred range, on the one hand, a better drainage effect can be achieved; on the other hand, this setting can make the space that drain 120 occupies display panel 140 as little as possible to there is more space electronic components of arranging on the display panel 140 of convenience, simultaneously, this preferred inclination scope more is fit for draining cavity 121 department mold insert demolding, can make the mould structure of draining cavity 121 department more reliable.

Referring to fig. 2 to 4, in an embodiment, the cross section of the waterproof boss 130 is stepped, specifically, the direction from the touch portion 210 to the pressing head 310 of the key 300 is from bottom to top, and the steps are gradually reduced upwards, so that a downward stepped slope can be formed, and water falling onto the steps of the waterproof boss 130 from the gap of the mounting hole 110 can smoothly fall onto the bottom surface of the drainage cavity 121 along the downward slope, and then is quickly drained through the bottom surface of the inclined drainage cavity 121. However, the design is not limited thereto, and in other embodiments, the waterproof boss 130 may be disposed in other shapes, for example, but not limited to, a tapered shape tapering toward the pressing head 310, and the like.

Further, referring to fig. 1, in the present embodiment, a drainage channel 190 is further formed inside the control panel 100, the drainage channel 190 is also inclined downward, and the drainage cavity 121 is communicated with the outside through the drainage channel 190, so that the water in the drainage cavity 121 can be smoothly discharged to the outside from the drainage channel 190.

Specifically, the waterproof boss 130 has a tip end surface facing the pressing head 310, the tip end surface being opened with a through hole 131, and the guide rod 320 being inserted into the through hole 131 and being movable in the axial direction in the through hole 131. Here, the diameter of the through hole 131 is preferably adapted to the diameter of the guide rod 320, so as to further prevent water from flowing into the main control board 200 from the gap between the guide rod 320 and the through hole 131 after overflowing the waterproof boss 130. In addition, the waterproof boss 130 has a gap between the top end surface thereof and the pressing head 310, which ensures that the key 300 can be pressed downward by a predetermined distance.

Referring to fig. 2 to 4, in an embodiment, the guide rod 320, the waterproof boss 130 and the touch portion 210 are disposed in a concentric manner, so as to obtain a better pressing effect of the key 300. Meanwhile, the outer diameter of the waterproof boss 130 is smaller than the diameter of the mounting hole 110, so that water flowing into the drain chamber 121 from the hole of the mounting hole 110 is more directly dropped on the chamber bottom surface of the drain chamber 121, and the inclined chamber bottom surface is guided to be quickly discharged.

Referring to fig. 5, in another embodiment, an elastic member 340 is sleeved on the guide rod 320, one end of the elastic member 340 elastically abuts against the pressing head 310, and the other end of the elastic member 340 elastically abuts against the waterproof boss 130. It can be understood that, because the height of the key 300 depends entirely on the design clearance between the top bar of the key 300 and the light touch key 300, for some products with the required height of the key 300, an elastic member 340 is required to be added to lift the key 300. In the present embodiment, the elastic member 340 is a spring. During actual assembly, the spring needs a certain amount of pre-compression, generally 2-3mm, so that the key 300 can be reliably pushed up. It should be noted here that the mounting surface of the spring should be higher than the bottom surface of the drainage cavity 121 to block capillary phenomenon, thereby ensuring that water does not go up along the spring and enter the through holes 131 of the waterproof boss 130.

However, since the drainage chamber 121 is not large due to the design of the interface, the drainage speed is slower than the water inlet speed in some usage scenarios, which may cause the water level to rise to the spring mounting surface at some instant, especially after pressing the spring many times, the water will extend up the steel wire, resulting in the risk of water entering the through hole 131. To address this problem, the following improvements can be made. Referring to fig. 4, in an embodiment, an elastic sealing member 350 is sleeved on the guide rod 320, specifically, the elastic sealing member 350 may be made of silicone, and the hardness of the silicone is preferably controlled to be 40-45 degrees in order to take into account three aspects of the silicone molding, the sealing performance, and the touch feeling of the key 300. Of course, the elastomeric seal 350 may also be made of other elastomeric materials.

Further, in the present embodiment, one end of the elastic sealing member 350 is in sealing contact with the inner side surface of the pressing head 310, which is a first sealing point of the elastic sealing member 350; meanwhile, the other end of the elastic sealing member 350 is in sealing sleeve connection with the waterproof boss 130, specifically, an annular sealing rib 351 is convexly arranged on the inner wall surface of the elastic sealing member 350, and then, the sealing rib 351 is in sealing contact with the outer wall surface of the first step of the waterproof boss 130, which is a second sealing point of the elastic sealing member 350. Thus, the elastic sealing member 350 can seal the inner side surface of the pressing head 310 and the outer peripheral surface of the top end of the waterproof boss 130 by arranging two sealing points on the elastic sealing member 350, so that the purpose of blocking water from entering the main control board 200 by internal siphon and external capillary is achieved, and the waterproof performance of the key waterproof structure is further improved.

The application also provides a dish washing machine, which comprises a key waterproof structure, wherein the specific structure of the key waterproof structure refers to the embodiments, and the dish washing machine adopts all the technical schemes of all the embodiments, so that all the beneficial effects brought by the technical schemes of the embodiments are also achieved, and the key waterproof structure is not repeated one by one.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waterproof structure for a key, comprising:

the control panel is provided with a mounting hole and a drainage piece formed inside, and a waterproof boss protruding towards the mounting hole is formed on the drainage piece;

the key comprises a pressing head and a guide rod, the pressing head is located in the mounting hole, one end of the guide rod is connected with the pressing head, and the other end of the guide rod extends into the waterproof boss to be in contact with the touch pressing part.

2. The waterproof key structure of claim 1, wherein the drainage member and the inner wall surface of the control panel enclose a drainage cavity, a cavity bottom surface of the drainage cavity is opposite to the mounting hole, and the cavity bottom surface of the drainage cavity is arranged along a radial direction and is inclined in a direction away from the mounting hole.

3. The waterproof structure for a keypad according to claim 2, wherein the inclination angle of the cavity bottom surface of the drain cavity ranges from 2 to 3 degrees.

4. The waterproof structure for a keypad according to claim 2, wherein the waterproof boss has a stepped cross section;

the waterproof boss is provided with a through hole matched with the guide rod on the end face of the top end of the pressing head, and a space is reserved between the end face of the top end of the waterproof boss and the pressing head.

5. The waterproof key structure of claim 4, wherein the guide rod is sleeved with an elastic member, one end of the elastic member is elastically abutted with the pressing head, and the other end of the elastic member is elastically abutted with the waterproof boss.

6. The waterproof key structure according to claim 4, wherein an elastic sealing member is sleeved on the guide rod, one end of the elastic sealing member is in sealing abutment with the inner side surface of the pressing head, and the other end of the elastic sealing member is in sealing sleeve connection with the waterproof boss.

7. The waterproof structure for a key set according to any one of claims 1 to 6, wherein the guide rod, the waterproof boss and the touch portion are disposed in a concentric manner, and an outer diameter of the waterproof boss is smaller than an aperture of the mounting hole.

8. The waterproof structure for a keypad according to any one of claims 2 to 6, wherein a drainage channel is further formed inside the control panel, and the drainage chamber is communicated with the outside through the drainage channel.

9. The waterproof key structure of any one of claims 1 to 6, wherein the pressing head is further provided with a connecting buckle extending towards the main control panel, and the key is in limit clamping connection with the control panel through the connecting buckle.

10. A dishwasher, comprising the button waterproofing structure according to any one of claims 1 to 9.