Pouring gate structure of double-color injection mold for wireless charging panel of auxiliary instrument panel
By rationally arranging the gate structure and controlling the glue injection method, the problem of obvious weld lines in the two-color injection molding of the sub-instrument panel wireless charging panel was solved, and the weld lines were concealed, improving the aesthetics.
Patent Information
- Application Number
- CN202422831268.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
Smart Images
Figure CN223478216U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of automotive injection molded structural parts, and relates to a gate structure for a two-color injection mold of a sub-dashboard wireless charging panel. Background Technology
[0002] Currently, with the popularization of new energy vehicles, in-vehicle wireless charging design has become a standard feature. In order to improve aesthetics and meet performance requirements, wireless charging panels are mostly molded using a two-color injection molding method. Two-color injection molding involves injecting two different injection molding materials into the same mold, thereby achieving a process where two materials and two structures exist on one product.
[0003] The wireless charging panel for the secondary instrument panel consists of a first injection structure and a second injection structure. The second injection structure is directly exposed to the view of passengers inside the vehicle. Therefore, to ensure the aesthetics of the second injection structure, the weld lines formed by the accumulation of adhesive on it need to be as short and concealed as possible. In existing technologies, the proper arrangement of the gates for the first and second injection structures is not properly considered during two-color injection molding, resulting in obvious weld line marks on the second injection structure, which affects the aesthetics of the wireless charging panel for the secondary instrument panel.
[0004] To address the issue of obvious weld lines on the second injection structure of existing instrument panel wireless charging panels, this utility model discloses a two-color injection mold gate structure for instrument panel wireless charging panels. Utility Model Content
[0005] The purpose of this utility model is to provide a two-color injection mold gate structure for a wireless charging panel of a secondary instrument panel, which can ensure that the glue is injected and formed synchronously and uniformly, and that the weld line formed by the glue is located at the corner of the structure, so that the weld line is the shortest and most concealed, thereby ensuring the aesthetics of the overall wireless charging panel of the secondary instrument panel.
[0006] This utility model is achieved through the following technical solution:
[0007] A two-color injection mold gate structure for a wireless charging panel of a sub-dashboard includes a first outer frame structure, a second inner frame structure is provided inside the first outer frame structure, a first gate is provided on any two opposite sides of the first outer frame structure and on the connecting side between any two opposite sides, and a second gate is provided on all sides of the second inner frame structure, with the first gate and the second gate being staggered.
[0008] Hard plastic material is injected into the mold simultaneously through all the first injection gates to obtain the first injection outer frame structure. Then, soft plastic material is injected into the mold at intervals by opening the second injection gates at intervals. The weld lines formed by the intermittent flow of soft plastic material into different second injection gates are located in the corner area of the second injection inner frame structure, thereby ensuring that the weld lines on the second injection inner frame structure, which serves as the outer appearance layer, are the shortest.
[0009] To better realize this utility model, the first injection gate further includes a first side gate, a second side gate, and a third side gate. The first side gate and the second side gate are symmetrically arranged on any two opposite sides of the first injection frame structure, and the third side gate is arranged on the connecting edge between any two opposite sides of the first injection frame structure.
[0010] To better realize this utility model, the second injection gate further includes a first auxiliary gate, a second auxiliary gate, a third auxiliary gate, and a main gate. The main gate is located on the opposite side of the second injection inner frame structure and the third side gate. The third auxiliary gate is located on the same side of the second injection inner frame structure and the third side gate. The first auxiliary gate and the second auxiliary gate are located on the connecting edge between the opposite side and the same side of the second injection inner frame structure.
[0011] To better realize this utility model, the first auxiliary gate, the second auxiliary gate, the third auxiliary gate, and the main gate are all located at the center of their respective sides.
[0012] To better realize this utility model, furthermore, a glue-carrying plate is provided on the side of the first auxiliary gate near the main gate and on the side of the second auxiliary gate near the main gate.
[0013] To better realize this utility model, the second inner frame structure is further made of soft rubber material, and the thickness of each side of the second inner frame structure is greater than or equal to 1.5mm.
[0014] To better realize this utility model, the second inner frame structure is further provided with a weld line area, which is located at the junction of the connecting edge and the same side edge of the second inner frame structure.
[0015] To better realize this utility model, the first injection frame structure is further made of hard plastic material, and the thickness of each side of the first injection frame structure is greater than or equal to 2mm.
[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0017] This invention rationally arranges the first injection gate on the first injection outer frame structure and the second injection gate on the second injection inner frame structure, and controls the flow rate and time of the injection. As a result, when the second injection inner frame structure is formed, the weld line formed by the glue is controlled at the corner of the second injection inner frame structure, so that the weld line is the shortest and hidden, thus ensuring the aesthetics of the wireless charging panel of the sub-dashboard. Attached Figure Description
[0018] Figure 1 A schematic diagram of the gate structure for a two-color injection mold;
[0019] Figure 2 This is a schematic diagram of the gate on the outer frame structure of the first injection unit;
[0020] Figure 3 This is a schematic diagram of the gate on the inner frame structure of the second injection.
[0021] Wherein: 1-First injection outer frame structure; 2-Second injection inner frame structure; 3-First injection gate; 4-Second injection gate; 5-Weld line area; 31-First side gate; 32-Second side gate; 33-Third side gate; 41-First auxiliary gate; 42-Second auxiliary gate; 43-Third auxiliary gate; 44-Main gate; A1-First side of outer frame; A2-Second side of outer frame; A3-Third side of outer frame; A4-Fourth side of outer frame; B1-First side of inner frame; B2-Second side of inner frame; B3-Third side of inner frame; B4-Fourth side of inner frame. Detailed Implementation
[0022] The following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is intended to include the plural form as well. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0024] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Terminology Explanation: The terms "installation," "connection," "linking," and "fixing" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] Example 1:
[0027] As shown in Figure 1, the dual-color injection mold gate structure for a wireless charging panel of a sub-dashboard in this embodiment includes a first outer frame structure 1, a second inner frame structure 2 inside the first outer frame structure 1, a first gate 3 on any two opposite sides of the first outer frame structure 1 and on the connecting side between any two opposite sides, and a second gate 4 on all sides of the second inner frame structure 2. The first gate 3 and the second gate 4 are staggered.
[0028] After the first outer frame structure 1 is assembled into the instrument panel, it is hidden inside the interior trim, so there is no need to consider its aesthetics. The second inner frame structure 2, however, is assembled into the instrument panel as an exterior component, therefore its aesthetics need to be carefully considered.
[0029] The first injection frame structure 1 is a rectangular frame with four sides. First injection gates 3 are provided on any two opposite sides and on the connecting edges between any two opposite sides of the first injection frame structure 1, and all first injection gates 3 have the same diameter. A clearance notch is provided on each side of the first injection frame structure 1 for setting up a second injection gate 4. Glue is injected into the mold simultaneously through all the first injection gates 3 to form the first injection frame structure 1. After the first injection frame structure 1 is formed, clearance notches are opened on each side of the first injection frame structure 1, and second injection gates 4 are set at the clearance notches.
[0030] The glue is injected into the mold through the second injection gate 4 at intervals, so that the melt line formed by the backflow of the glue in the mold is located at the corner of the second injection inner frame structure 2, so as to ensure that the length of the weld line is minimized.
[0031] Furthermore, the first injection-molded outer frame structure 1 is made of rigid plastic material, and the thickness of each side of the first injection-molded outer frame structure 1 is greater than or equal to 2 mm. Preferably, the first injection-molded outer frame structure 1 is made of PC+ABS rigid plastic material.
[0032] Furthermore, the second injection frame structure 2 is made of a soft rubber material, and the thickness of each side of the second injection frame structure 2 is greater than or equal to 1.5 mm. Preferably, the second injection frame structure 2 is made of TPE soft rubber material.
[0033] Example 2:
[0034] A dual-color injection mold gate structure for a sub-dashboard wireless charging panel, such as Figure 2 As shown, based on the improvement of embodiment 1, the first injection gate 3 includes a first side gate 31, a second side gate 32, and a third side gate 33. The first side gate 31 and the second side gate 32 are symmetrically arranged on any two opposite sides of the first injection frame structure 1, and the third side gate 33 is arranged on the connecting edge between any two opposite sides of the first injection frame structure 1.
[0035] like Figure 2 As shown, the first outer frame structure 1 is a rectangular frame structure composed of four sides. For ease of explanation, the four sides are named, in order, the first side A1, the second side A2, the third side A3, and the fourth side A4. The first side A1 and the second side A2 are positioned opposite each other, and the third side A3 and the fourth side A4 are positioned opposite each other. The first side gate 31 and the second side gate 32 are symmetrically arranged on the first side A1 and the second side A2 of the outer frame, and the third side gate 33 is arranged on either the third side A3 or the fourth side A4 of the outer frame.
[0036] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.
[0037] Example 3:
[0038] A gate structure for a two-color injection mold of a wireless charging panel for a secondary instrument panel, improved based on embodiment 1 or 2, such as... Figure 3 As shown, the second injection gate 4 includes a first auxiliary gate 41, a second auxiliary gate 42, a third auxiliary gate 43, and a main gate 44. The main gate 44 is located on the opposite side of the second injection inner frame structure 2 and the third side gate 33. The third auxiliary gate 43 is located on the same side of the second injection inner frame structure 2 and the third side gate 33. The first auxiliary gate 41 and the second auxiliary gate 42 are located on the connecting edge between the opposite side and the same side of the second injection inner frame structure 2.
[0039] like Figure 3As shown, the second inner frame structure 2 is a rectangular frame structure composed of four sides. For ease of explanation, the four sides are named, in order, inner frame first side B1, inner frame second side B2, inner frame third side B3, and inner frame fourth side B4. Inner frame first side B1 and inner frame second side B2 are positioned opposite each other, and inner frame third side B3 and inner frame fourth side B4 are positioned opposite each other. First auxiliary gate 41 and second auxiliary gate 42 are respectively located on inner frame first side B1 and inner frame second side B2, third auxiliary gate 43 is located on inner frame third side B3, and main gate 44 is located on inner frame fourth side B4.
[0040] When the second inner frame structure 2 is injection molded, the glue is first injected through the main gate 44. When the glue flows through the first auxiliary gate 41 and the second auxiliary gate 42, the glue is injected synchronously through the first auxiliary gate 41, the second auxiliary gate 42 and the third auxiliary gate 43. By controlling the injection speed and injection time of the first auxiliary gate 41, the weld line of the glue from the first auxiliary gate 41 is located at the corner of the junction of the first side B1 and the third side B3 of the inner frame, and the weld line of the glue from the second auxiliary gate 42 is located at the corner of the junction of the second side B2 and the third side B3 of the inner frame.
[0041] Furthermore, the first auxiliary gate 41, the second auxiliary gate 42, the third auxiliary gate 43, and the main gate 44 are all located at the center of their respective sides, thereby ensuring the symmetry of the flow of the adhesive.
[0042] Furthermore, a glue-carrying plate is provided on the side of the first auxiliary gate 41 near the main gate 44 and on the side of the second auxiliary gate 42 near the main gate 44. By setting the glue-carrying plate, it can be determined whether the glue from the main gate 44 has passed through the first auxiliary gate 41 and the second auxiliary gate 42.
[0043] The other parts of this embodiment are the same as those in Embodiment 1 or 2, so they will not be described again.
[0044] Example 4:
[0045] A gate structure for a two-color injection mold of a wireless charging panel for a secondary instrument panel, improved based on any one of embodiments 1-3, such as... Figure 1 As shown, the second inner frame structure 2 is provided with a weld line area 5, which is located at the junction of the connecting edge and the same side edge of the second inner frame structure 2.
[0046] As shown in the figure, the weld line areas 5 on both sides are located at the junction of the first side B1 and the third side B3 of the inner frame, and at the junction of the second side B2 and the third side B3 of the inner frame, respectively. This ensures that the weld line formed in the weld line area 5 is the shortest and that the weld line is located at the corner and is not easily noticed, thereby ensuring the aesthetics of the second inner frame structure 2.
[0047] The other parts of this embodiment are the same as any one of embodiments 1-3, so they will not be described again.
[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A gate structure for a two-color injection mold of a sub-instrument panel wireless charging panel, characterized in that, The first injection outer frame structure (1) is provided with a second injection inner frame structure (2) inside the first injection outer frame structure (1). A first injection gate (3) is provided on any two opposite sides of the first injection outer frame structure (1) and on the connecting side between any two opposite sides. A second injection gate (4) is provided on all sides of the second injection inner frame structure (2). The first injection gate (3) and the second injection gate (4) are staggered.
2. The gate structure of a dual-color injection mold for a wireless charging panel of a secondary instrument panel according to claim 1, characterized in that, The first injection gate (3) includes a first side gate (31), a second side gate (32), and a third side gate (33). The first side gate (31) and the second side gate (32) are symmetrically arranged on any two opposite sides of the first injection frame structure (1), and the third side gate (33) is arranged on the connecting side between any two opposite sides of the first injection frame structure (1).
3. The gate structure of a dual-color injection mold for a wireless charging panel of a secondary instrument panel according to claim 2, characterized in that, The second injection gate (4) includes a first auxiliary gate (41), a second auxiliary gate (42), a third auxiliary gate (43), and a main gate (44). The main gate (44) is located on the opposite side of the second injection inner frame structure (2) and the third side gate (33). The third auxiliary gate (43) is located on the same side of the second injection inner frame structure (2) and the third side gate (33). The first auxiliary gate (41) and the second auxiliary gate (42) are located on the connecting edge between the opposite side and the same side of the second injection inner frame structure (2).
4. The gate structure of a dual-color injection mold for a wireless charging panel on a secondary instrument panel according to claim 3, characterized in that, The first auxiliary gate (41), the second auxiliary gate (42), the third auxiliary gate (43), and the main gate (44) are all located at the center of their respective sides.
5. The gate structure of a dual-color injection mold for a wireless charging panel of a secondary instrument panel according to claim 4, characterized in that, A glue-carrying plate is provided on the side of the first auxiliary gate (41) near the main gate (44) and on the side of the second auxiliary gate (42) near the main gate (44).
6. The gate structure of a dual-color injection mold for a wireless charging panel of a secondary instrument panel according to claim 5, characterized in that, The second inner frame structure (2) is provided with a weld line area (5), which is located at the junction of the connecting side and the same side side of the second inner frame structure (2).
7. The gate structure of a dual-color injection mold for a wireless charging panel of a secondary instrument panel according to any one of claims 1-6, characterized in that, The second injection frame structure (2) is made of soft rubber material, and the thickness of each side of the second injection frame structure (2) is greater than or equal to 1.5 mm.
8. The gate structure of a dual-color injection mold for a wireless charging panel of a secondary instrument panel according to any one of claims 1-6, characterized in that, The first injection frame structure (1) is made of hard plastic material, and the thickness of each side of the first injection frame structure (1) is greater than or equal to 2 mm.