Face cover structure and household appliance

Abstract

The application specifically relates to the technical field of household appliances, and particularly relates to a surface cover structure and a household appliance. The surface cover structure comprises an embedded plate, a connecting assembly, a surface cover side wall, and a face cover. The connecting assembly comprises an inclined plate and a transition plate. The inclined plate is arranged in the edge circumferential direction of the embedded plate. The inclined plate is inclined upward in the direction away from the embedded plate. The inclined plate and the embedded plate form a mounting position suitable for mounting a panel. The first side of the transition plate is connected with the edge circumferential direction of the inclined plate. The surface cover side wall is arranged in the edge circumferential direction of the transition plate. The top edge of the surface cover side wall is connected with the second side of the transition plate. In the injection molding process, the liquid plastic raw material flows out from the embedded plate, directly flows to the top edge of the surface cover side wall through the connecting assembly, and then unidirectionally flows along the surface cover side wall to the bottom end of the surface cover side wall. The liquid plastic raw material unidirectionally flows in the whole injection molding process and has no shunt phenomenon. Therefore, the problem of forming a fusion mark in the injection molding process is avoided, and the appearance is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to a cover structure and a household appliance. Background Technology

[0002] Small appliances on the market, such as rice cookers and humidifiers, typically have a cover structure, which includes the cover itself and a glass panel mounted on it. To facilitate the installation of the glass panel, the top of the cover is lower than its side wall, so that the top and side wall of the cover form an insert groove that fits perfectly into the glass panel.

[0003] The faceplate is typically manufactured using injection molding. During injection molding, the mold's inlet is located in the insert groove, and the liquid plastic material gradually flows from the insert groove to the surrounding area. Because the top of the faceplate is lower than its sidewalls, after the liquid plastic material flows out from the top of the faceplate, some flows to the upper end of the sidewall and some flows to the lower end of the sidewall. This results in a weld line forming at the point where the material splits between the upper and lower ends of the sidewall, affecting the aesthetic appearance. Utility Model Content

[0004] In view of this, this application provides a cover structure and a household appliance to solve the technical problem in the prior art where weld lines are formed during injection molding, affecting the aesthetic appearance of the cover.

[0005] In a first aspect, this application provides a faceplate structure, the faceplate structure comprising:

[0006] Embedded board;

[0007] The connecting assembly includes an inclined plate and a transition plate, the inclined plate being disposed circumferentially at the edge of the embedded plate; and the inclined plate being inclined upward in a direction away from the embedded plate, the inclined plate and the embedded plate surrounding each other to form a mounting position suitable for mounting a panel; a first side of the transition plate is circumferentially connected to the edge of the inclined plate.

[0008] The cover sidewall is set around the edge of the transition plate, and the top edge of the cover sidewall is connected to the second side of the transition plate.

[0009] Beneficial effects: In this embodiment, the embedded plate, the connection component, and the side wall of the face cover form a structurally complete and continuous appearance, forming a "ji" - shaped structure when viewed from the cross - sectional view. In this way, when the injection mold is injecting, after the liquid plastic raw material flows out from the embedded plate, it directly flows to the top edge of the side wall of the face cover through the connection component, and then flows unidirectionally along the side wall of the face cover to the bottom end of the side wall of the face cover. This makes the liquid plastic raw material flow unidirectionally during the entire injection process without any splitting phenomenon, thus avoiding the problem of weld lines formed during injection and improving the aesthetic appearance. Moreover, when the face cover structure in this embodiment is being injected, compared with the original splitting method, the unidirectional flow can significantly reduce the resistance coefficient of the liquid plastic raw material flow, and at the same time improve the uniformity of the flow speed, thereby improving the production efficiency.

[0010] In an optional implementation manner, the inclined plate slopes upward in a direction away from the embedded plate and forms a first inclined surface; an end portion of the panel close to the first inclined surface is provided with a second inclined surface corresponding to and cooperating with the first inclined surface. Beneficial effects: In this embodiment, the panel is installed at the installation position of the embedded plate by means of clamping or gluing, and the first inclined surface and the second inclined surface are precisely matched, so that the panel can be fixed. At the same time, since the height of the embedded plate is lower than that of the inclined plate, the inclined plate and the embedded plate can fix the panel in a wrapped manner. This assembly method not only ensures the stability of the panel installation, but also reduces the assembly difficulty through the guiding effect of the inclined surface. In addition, the setting of the first inclined surface can also reduce the resistance coefficient of the liquid plastic raw material flow during injection, and at the same time improve the uniformity of the flow speed, thereby improving the production efficiency.

[0011] In an optional implementation manner, the minimum distance between the inclined plate and the side wall of the face cover is a first distance d, and the first distance d is greater than 1.5 mm.

[0012] Beneficial effects: In this embodiment, the minimum distance between the inclined plate and the side wall of the face cover is strictly controlled within a certain range to avoid the phenomenon of thin steel in the mold. After life testing, this design can extend the service life of the injection mold to more than 500,000 times, which is an improvement compared with traditional molds.

[0013] In an optional implementation manner, an included angle a is provided between the inclined plate and the vertical direction, and the included angle a is between 10° and 50°.

[0014] In an optional implementation manner, the included angle a is 30°.

[0015] Beneficial effects: In this embodiment, the included angle between the inclined plate and the vertical direction is optimized to 30°. This angle not only meets the technological requirements for mold ejection but also provides the best guiding effect for panel installation.

[0016] In an optional implementation manner, the transition plate has a straight - plate structure and is arranged horizontally.

[0017] In one alternative embodiment, the transition plate has an arcuate plate structure, and the other side of the transition plate is bent away from the inclined plate.

[0018] Beneficial effects: In this embodiment, the transition plate is designed as an arc-shaped plate structure, which further optimizes the smoothness of raw material flow and reduces flow resistance. Simulation data shows that the arc-shaped plate structure can reduce the fluctuation range of raw material flow velocity, further reduce the resistance coefficient of liquid plastic raw material flow, and improve the uniformity of flow velocity, thereby improving production efficiency.

[0019] In one alternative embodiment, the insert plate is provided with a glue inlet corresponding to the injection molding sprue.

[0020] In one alternative implementation, the glue inlet is located at the geometric center of the insert plate.

[0021] Beneficial effects: In this embodiment, the glue inlet is located at the center of the embedded plate, which ensures that the path length of the liquid plastic material flowing outwards is consistent. Fluid simulation shows that placing the glue inlet at the geometric center allows the time difference between the material reaching each point on the cover sidewall to be controlled within a very short time, avoiding material accumulation and cross-flow caused by flow time differences, thereby effectively eliminating flow marks.

[0022] Secondly, this application provides a household appliance that includes a cover structure as described in any of the above embodiments.

[0023] In one alternative implementation, the household appliance is a rice cooker. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the faceplate in the prior art;

[0026] Figure 2 This is a cross-sectional view of the cover structure in the prior art;

[0027] Figure 3 for Figure 2 A magnified view of the partial diversion of liquid plastic raw materials in section A shown;

[0028] Figure 4 This is a schematic diagram of the overall structure of the cover structure without the assembled panel in this application;

[0029] Figure 5 This is a sectional view of the cover structure (equipped with a panel) in this application;

[0030] Figure 6 for Figure 5 A magnified view of part B shown;

[0031] Figure 7 for Figure 6 The diagram shows the unidirectional flow of liquid plastic raw material in section B.

[0032] Figure 8 This is a sectional view of the cover structure (without the panel assembled) in this application;

[0033] Figure 9 for Figure 8 A magnified view of part C shown;

[0034] Figure 10 for Figure 9 The diagram shows the unidirectional flow of liquid plastic raw material in section C.

[0035] Figure 11 This is a cross-sectional view of the transition plate structure in this application, which is an arc plate structure.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Embedded plate; 2. Connecting component; 21. Inclined plate; 211. First inclined surface; 22. Transition plate; 222. Arc plate structure; 23. Mounting position; 3. Cover sidewall; 4. Panel; 41. Second inclined surface. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that the terms "inner," "upper," "outer," "lower," "underneath," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, they can refer to fixed communication, detachable communication, or integral communication; they can refer to mechanical communication or electrical communication; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to communication within two components; and they can refer to wireless communication or wired communication. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] Currently, small electrical appliances on the market, such as rice cookers and humidifiers, typically have a cover structure, which includes the cover itself and a glass panel 4 mounted on the cover. For example... Figures 1 to 3 As shown, in order to facilitate the installation of the glass panel 4, the top of the cover is lower than the side wall of the cover, so that the top of the cover and the side wall of the cover surround and form an embedding groove, which fits the glass panel 4 perfectly.

[0042] The top cover is typically manufactured using injection molding. During injection molding, the mold's inlet is located in an insert groove, and the liquid plastic material gradually flows from the insert groove to the surrounding area. For example... Figure 3 As shown, since the top of the cover is lower than the side wall of the cover, after the liquid plastic material flows out from the top of the cover, part of it flows to the upper end of the side wall and part of it flows to the lower end of the side wall. This causes a weld line to form at the point where the material flows between the upper and lower ends of the side wall, which affects the appearance.

[0043] In view of this, this application provides a cover structure and a household appliance to solve the technical problem in the prior art where weld lines are formed during injection molding, affecting the aesthetic appearance of the cover.

[0044] The following is combined with Figures 4 to 11 This describes an embodiment of the present application.

[0045] like Figures 4 to 11 As shown, according to an embodiment of this application, in one aspect, this application provides a face cover structure, which includes an embedded plate 1, a connecting component 2, and a face cover sidewall 3.

[0046] Specifically, in this embodiment, the embedded plate 1 is mainly used to provide the mounting position 23 for mounting the panel 4. Furthermore, the panel 4 can be a glass panel 4 or a plastic panel 4. Of course, this embodiment is merely an example of the specific material of the panel 4, and does not limit its application. Those skilled in the art can make changes according to actual circumstances, as long as the same technical effect is achieved.

[0047] The connection between panel 4 and mounting position 23 can be either a fixed connection or a detachable connection. A fixed connection can be achieved by adhesive bonding. A detachable connection can be secured using screws and screw holes, clips and slots, or magnetic attraction.

[0048] The following provides an example of a detachable connection method. For instance, additional fixing plates can be provided on both sides of panel 4. Those skilled in the art can change the number of fixing plates according to actual needs, such as 1, 2, 3, 4, etc. Screw holes are then made on the fixing plates. On mounting position 23, another screw hole is made at the corresponding screw hole position. Screws are then passed through the screw holes on the fixing plates and the screw holes on mounting position 23 in sequence, thereby connecting panel 4 to mounting position 23. Furthermore, when using a snap-fit ​​and slot method for fixing, snap-fits can be additionally provided on panel 4. Those skilled in the art can change the number of snap-fits according to actual needs, such as 1, 2, 3, 4, etc. Slots that can cooperate with the snap-fits are then made on mounting position 23 at the corresponding snap-fit ​​positions. The snap-fits on panel 4 are then directly inserted into the slots on mounting position 23, thereby connecting panel 4 to mounting position 23. When fixing by magnetic attraction, a magnetic sheet can be additionally set on the panel 4. Those skilled in the art can change the number of magnetic sheets according to the actual situation, such as 1, 2, 3, 4, etc. Then, a magnetic sheet of opposite shape that can attract the magnetic sheet is made on the mounting position 23 at the position corresponding to the magnetic sheet. Then, the magnetic sheet on the panel 4 is directly aligned with the magnetic sheet of opposite shape embedded in the mounting position 23, thereby magnetically connecting the panel 4 and the mounting position 23.

[0049] Of course, this embodiment is merely an example of fixed connection and detachable connection, but it does not limit the scope of the invention. Those skilled in the art can make changes according to the actual situation to achieve the same technical effect.

[0050] Furthermore, in this embodiment, the connecting component 2 includes an inclined plate 21 and a transition plate 22.

[0051] Specifically, in this embodiment, the inclined plate 21 is disposed around the edge of the embedded plate 1, and the inclined plate 21 is inclined upward in a direction away from the embedded plate 1. That is, the embedded plate 1 and the inclined plate 21 are configured to form a recessed structure, so that the connecting component 2 and the inclined plate 21 surround and form a mounting position 23 suitable for mounting the panel 4. At the same time, the inclined plate 21 is inclined outward of the mounting position 23, thereby providing a certain inclined guide for the installation of the panel 4, which facilitates the installation by the assembly personnel.

[0052] Furthermore, in this embodiment, the first side of the transition plate 22 is circumferentially connected to the edge of the inclined plate 21. The type of the transition plate 22 can be a straight plate structure, an arc plate structure 222, a corrugated plate structure, or a stepped structure. Of course, this embodiment is only an example of the type of the transition plate 22, but it is not limited thereto. Those skilled in the art can make changes according to the actual situation as long as the same technical effects can be achieved.

[0053] Furthermore, in this embodiment, the side wall 3 of the face cover is disposed circumferentially at the edge of the transition plate 22, and the top edge of the side wall 3 of the face cover is connected to the second side of the transition plate 22. That is to say, the side wall 3 of the face cover is integrally in a cylindrical structure, and the top edge of the side wall 3 of the face cover is exactly connected to the outer edge of the transition plate 22.

[0054] With this setting, in this embodiment, the embedded plate 1, the connection component 2, and the side wall 3 of the face cover form a structurally complete and continuous appearance, forming a "U" - shaped structure in the sectional view. In this way, when the injection mold is injecting, the liquid plastic raw material flows out from the embedded plate 1, then directly flows to the top edge of the side wall 3 of the face cover through the connection component 2, and then flows unidirectionally along the side wall 3 of the face cover to the bottom end of the side wall 3 of the face cover. This makes the liquid plastic raw material flow unidirectionally during the entire injection process without any diversion phenomenon, thereby avoiding the problem of weld lines formed during injection and improving the appearance aesthetics. Moreover, when the face cover structure in this embodiment is being injected, compared with the original diversion method, the unidirectional flow can significantly reduce the resistance coefficient of the liquid plastic raw material flow, and at the same time improve the uniformity of the flow speed, thereby improving the production efficiency.

[0055] Furthermore, in an optional embodiment, the inclined plate 21 slopes upward in a direction away from the embedded plate 1 and forms a first inclined surface 211. The end of the panel 4 close to the first inclined surface 211 is provided with a second inclined surface 41 corresponding to and cooperating with the first inclined surface 211. This can ensure that the edge of the panel 4 fits as closely as possible to the plate surface of the inclined plate 21, thereby improving the sealing performance of the installation of the panel 4.

[0056] With this setting, in this embodiment, the panel 4 is installed on the installation position 23 of the embedded plate 1 by means of snap - connection or gluing, and the inclined surfaces of the inclined panel 4 can be precisely matched with the inclined surfaces of the panel 4, thereby fixing the panel 4. At the same time, since the height of the embedded plate 1 is lower than that of the inclined plate 21, the inclined plate 21 and the embedded plate 1 can fix the panel 4 in a wrapped manner. This assembly method not only ensures the stability of the installation of the panel 4, but also reduces the assembly difficulty through the guiding effect of the inclined surface. Moreover, the setting of the first inclined surface 211 can also reduce the resistance coefficient of the liquid plastic raw material flow during injection, and at the same time improve the uniformity of the flow speed, thereby improving the production efficiency.

[0057] Further, in an optional embodiment, the minimum distance between the inclined plate 21 and the sidewall 3 of the cover is a first distance d, which is greater than 1.5 mm. Figure 6 and Figure 9 As shown, the first distance is the distance between the top of the inclined plate 21 and the side wall 3 of the cover.

[0058] With this configuration, the minimum distance between the inclined plate 21 and the side wall 3 of the faceplate is strictly controlled within a certain range in this embodiment, avoiding the thin steel phenomenon of the mold. After life test, this design can extend the service life of the injection mold to more than 500,000 times, which is an improvement over traditional molds.

[0059] Furthermore, in an optional embodiment, the inclined plate 21 is provided with an included angle α between itself and the vertical direction, and the included angle α is between 10° and 50°. For example, the included angle α can be selected from angles such as 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, etc. Of course, this embodiment is only an example of the specific angle α, but it is not a limitation. Those skilled in the art can change it according to the actual situation, as long as the same technical effect can be achieved.

[0060] Furthermore, in an alternative embodiment, the included angle α is 30°. Naturally, the second inclined surface 41 provided at the edge of panel 4 also has an inclination angle of 30°.

[0061] With this configuration, the angle between the inclined plate 21 and the vertical direction is optimized to 30° in this embodiment. This angle not only meets the process requirements for mold ejection, but also provides the best guiding effect for the installation of panel 4.

[0062] Furthermore, in an alternative implementation, such as Figure 6 and Figure 9 As shown, the transition plate 22 has a straight plate structure and is arranged in the horizontal direction.

[0063] Furthermore, in an alternative implementation, such as Figure 11 As shown, the transition plate 22 has an arc plate structure 222, and the other side of the transition plate 22 is bent in a direction away from the inclined plate 21.

[0064] With this configuration, the transition plate 22 in this embodiment is set as an arc plate structure 222, which can further optimize the smoothness of raw material flow and reduce flow resistance. Simulation data shows that the arc plate structure 222 can reduce the fluctuation range of raw material flow velocity, further reduce the resistance coefficient of liquid plastic raw material flow, and improve the uniformity of flow velocity, thereby improving production efficiency.

[0065] Furthermore, in an optional embodiment, the embedded plate 1 is provided with a glue inlet, which corresponds to the injection mold inlet. That is, during injection molding, the liquid plastic raw material first enters the glue inlet of the glass panel 4 mounting position 23 through the injection mold inlet, and then flows to the connecting component 2, and then flows to the side wall of the cover 3.

[0066] Furthermore, in an alternative embodiment, the glue injection point is located at the geometric center of the insert plate 1.

[0067] With this configuration, the glue inlet point is positioned at the center of the embedded plate 1, ensuring a consistent path length for the liquid plastic material flowing outwards. Fluid simulation shows that placing the glue inlet point at the geometric center allows the time difference between the material's arrival at each point on the cover sidewall 3 to be controlled within a very short time. The liquid plastic material will not move laterally during its flow on the cover sidewall 3, avoiding material accumulation and cross-flow caused by the time difference in flow, thus effectively eliminating flow marks.

[0068] Secondly, this application provides a household appliance that includes a cover structure as described in any of the above embodiments.

[0069] Furthermore, in one optional embodiment, the household appliance can be a rice cooker. Of course, it could also be a pressure cooker, a soy milk maker, or other similar appliances. This embodiment is merely an example to illustrate the types of household appliances, but it is not intended to limit the scope. Those skilled in the art can make changes according to actual circumstances to achieve the same technical effect.

[0070] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A faceplate structure, characterized in that, include: Embedded board (1); The connecting assembly (2) includes an inclined plate (21) and a transition plate (22), wherein the inclined plate (21) is disposed circumferentially at the edge of the embedded plate (1); and the inclined plate (21) is inclined upward in a direction away from the embedded plate (1), and the inclined plate (21) and the embedded plate (1) surround to form a mounting position (23) suitable for mounting the panel (4); the first side of the transition plate (22) is circumferentially connected to the edge of the inclined plate (21); The cover sidewall (3) is disposed around the edge of the transition plate (22), and the top edge of the cover sidewall (3) is connected to the second side of the transition plate (22).

2. The faceplate structure according to claim 1, characterized in that, The inclined plate (21) is inclined upward in a direction away from the embedded plate (1) and forms a first inclined surface (211); the end of the panel (4) near the first inclined surface (211) is provided with a second inclined surface (41) that corresponds to and cooperates with the first inclined surface (211).

3. The faceplate structure according to claim 2, characterized in that, The minimum distance between the inclined plate (21) and the side wall of the cover (3) is the first distance d, which is greater than 1.5 mm.

4. The cover structure according to claim 1 or 2, characterized in that, The inclined plate (21) is provided with an angle α between itself and the vertical direction, and the angle α is between 10° and 50°.

5. The faceplate structure according to claim 4, characterized in that, The included angle α is 30°.

6. The faceplate structure according to claim 1 or 2, characterized in that, The transition plate (22) has a straight plate structure and is arranged in a horizontal direction.

7. The cover structure according to claim 1 or 2, characterized in that, The transition plate (22) has an arc plate structure (222), and the other side of the transition plate (22) is bent in a direction away from the inclined plate (21).

8. The cover structure according to claim 1 or 2, characterized in that, The embedded plate (1) is provided with a glue inlet, which corresponds to the injection molding glue inlet.

9. The faceplate structure according to claim 8, characterized in that, The glue inlet is located at the geometric center of the embedded plate (1).

10. A household appliance, characterized in that, include: The cover structure as described in any one of claims 1 to 9.

11. The household appliance according to claim 10, characterized in that, The household appliance mentioned is a rice cooker.

Images