Injection mold for antenna module

Abstract

The utility model discloses an injection mold for an antenna module. The injection mold comprises a base, a first sliding block and a second sliding block, a terminal material belt of the antenna module is arranged on the base and provided with a second terminal, the second terminal is provided with a horizontal holding part and a vertical butt joint part, the second sliding block is provided with a notch and side walls located on the two sides of the notch, the butt joint part is located in the notch, and the first sliding block is inserted into the notch and jointly clamps and fixes the butt joint part front and back with the second sliding block. The butt joint part comprises a top part, a root part connected with the fixing part and a middle part connected with the top part and the root part, the middle part is in a big-end-up sheet shape, and the root part and part of the middle part are both located in the notch. According to the injection mold, the butt joint part of the second terminal can be better positioned, and the size stability of the butt joint part is improved.

Description

Technical Field

[0001] The utility model relates to an injection mold for an antenna module. Background Art

[0002] The design requirements of existing smart watches require reducing the size of each component to facilitate the design of more functions. Therefore, the size of the antenna module used in the smart watch is extremely small. At the same time, the dimensional accuracy of the vertically arranged docking part on the antenna module is also required to be high. However, in the process of injection molding the plastic block on the terminal strip of the existing injection molding module, the docking part is easily deformed and its dimensional accuracy is affected.

[0003] Therefore, it is necessary to provide a new injection molding module to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model provides an injection molding module, which can improve the dimensional stability of a docking portion of an antenna module.

[0005] Specifically, the utility model is realized through the following technical scheme: an injection mold for an antenna module, comprising a base, a first slider and a second slider, the terminal strip of the antenna module is arranged on the base and is provided with a second terminal, the second terminal is provided with a horizontal holding portion and a vertical docking portion, the second slider is provided with a recess and side walls located on both sides of the recess, the docking portion is located in the recess, the first slider is inserted into the recess and clamps the docking portion front and back together with the second slider to fix the docking portion, the docking portion comprises a top, a root connected to the holding portion and a middle portion connecting the top and the root, the middle portion is in the shape of a sheet with a larger top and a smaller bottom, and the root and part of the middle portion are both located in the recess.

[0006] In a preferred embodiment, the side wall limits the middle portion in left-right directions.

[0007] In a preferred embodiment, the height of the side wall is 1.4 mm-2 mm.

[0008] In a preferred embodiment, the height of the side wall is 1.6 mm.

[0009] In a preferred embodiment, the side walls are respectively provided with a positioning block in the recess, and the two positioning blocks clamp and position the root on the left and right.

[0010] In a preferred embodiment, the terminal strip includes a first terminal strip and a second terminal strip, the first terminal strip is provided with a first terminal, the second terminal strip is provided with the second terminal, and the first terminal is in the shape of a horizontally arranged flat plate and is provided with a screw hole.

[0011] In a preferred embodiment, a side edge of the top of the docking portion is connected to a second main strip of the second terminal strip.

[0012] In a preferred embodiment, the first terminal strip is provided with two auxiliary strips connected to the first terminals, wherein one of the auxiliary strips is connected to the first main strip of the first terminal strip.

[0013] In a preferred embodiment, the auxiliary belt is provided with a positioning hole, and the base is provided with a positioning column inserted into the positioning hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the injection mold can better position the docking portion of the second terminal and improve the dimensional stability of the docking portion.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional combination diagram of the injection mold and the terminal strip in one embodiment of the present application.

[0017] Figure 2 for Figure 1 Exploded view of the injection mold and terminal strip.

[0018] Figure 3 for Figure 2 A three-dimensional view of the terminal strip in FIG.

[0019] Figure 4 for Figure 3 Top view of the terminal strip in .

[0020] Figure 5 for Figure 3 A three-dimensional view of the terminal strip at another angle.

[0021] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0022] Figure 7 and Figure 6 Similarly, the diagram shows the state when the first slider and the second slider of the injection mold clamp the second terminal of the terminal strip.

[0023] Description of reference numerals:

[0024] Base 1, positioning column 11, first slider 2, second slider 3, recess 31, side wall 32, positioning block 33, terminal strip 4, first terminal strip 41, auxiliary strip 411, first main strip 412, positioning hole 413, first terminal 43, screw hole 431, second terminal strip 42, second main strip 421, second terminal 44, retaining portion 441, docking portion 442, contact surface 443, top 444, root 445, middle portion 446, plastic block 5. DETAILED DESCRIPTION

[0025] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices, systems, equipment and methods consistent with some aspects of the utility model.

[0026] refer to Figure 1 and Figure 2 As shown, the present application is an injection mold for an antenna module, including a base 1, a first slider 2 and a second slider 3, a terminal strip 4 is placed on the base 1, the first slider 2 and the second slider 3 are slidably arranged on the base 1 to fix the terminal strip 4, and a plastic block 5 is directly injection molded on the terminal strip 4 to form an antenna module.

[0027] refer to Figures 3 to 5 As shown, the terminal strip 4 shown in the figure includes two groups of terminal groups, wherein a plastic block 5 has been injection molded on the right terminal group to form an antenna module. The terminal strip 4 includes a first terminal strip 41 and a second terminal strip 42, wherein the first terminal strip 41 is provided with a first terminal 43, and the second terminal strip 42 is provided with a second terminal 44. The first terminal 43 is roughly in the shape of a horizontally arranged flat plate, and a screw hole 431 is provided at one end thereof. The first terminal strip 41 is provided with two auxiliary strips 411 connected to the first terminal 43, wherein one auxiliary strip 411 is connected to the first main strip 412 of the first terminal strip 41. The second terminal 44 is roughly L-shaped, and includes a horizontal holding portion 441 and a vertical docking portion 442. The side of the docking portion 442 of the second terminal 44 is connected to the second main strip 421 of the second terminal strip 42, and the holding portion 441 of the second terminal 44 is close to and roughly flush with the first terminal 43. The plastic block 5 is directly molded on the terminal strip 4 . After molding, a portion of the first terminal 43 and the retaining portion 441 of the second terminal 44 are embedded in the plastic block 5 , and the corresponding surfaces are exposed for subsequent electrical connection.

[0028] The auxiliary strip 411 of the first terminal strip 41 is provided with a positioning hole 413, and the base 1 is also provided with a positioning post 11 (see FIG. Figure 2), can effectively improve the positioning accuracy of the first terminal strip 41, greatly reduce positioning errors, significantly increase the stability of product dimensions, and ensure that the product meets strict quality standards and production reliability.

[0029] The docking portion 442 is used to be plugged with a docking assembly (not shown). The distance d between the contact surface 443 of the docking portion 442 and the center line of the plastic block 5 must meet specific specification requirements. The first slider 2 and the second slider 3 are used to clamp and fix the docking portion 442 to prevent the stress change of the plastic block 5 before and after molding from affecting the docking portion 442, causing its position deformation to affect the accuracy of the distance d. The docking portion 442 includes a top 444 connected to its second main material strip 421, a root 445 connected to the holding portion 441, and a middle portion 446 connecting the top 444 and the root 445, wherein the root 445 is a flat rectangular shape, the middle portion 446 is a trapezoidal sheet that is generally larger at the top and smaller at the bottom and is slightly inclined, and the top 444 is also a flat rectangular shape.

[0030] refer to Figure 6 , and combined with Figure 7 As shown, the second slider 3 is provided with a notch 31 and side walls 32 located on opposite sides of the notch 31, the docking portion 442 is located in the notch 31, and the first slider 2 is inserted into the notch 31 to clamp and fix the root 445 with the second slider 3, that is, the first slider 2 and the second slider 3 respectively abut the front and rear sides of the root 445 from the front and rear sides. The two side walls 32 are respectively provided with a positioning block 33 in the notch 31, and the two positioning blocks 33 are respectively clamped and fixed by the left and right sides of the root 445 to reliably position the docking portion 442.

[0031] The thickness of the plastic block 5 at the root 445 does not exceed 0.2 mm, but the height of the side wall 32 is 1.4 mm to 2 mm, preferably 1.6 mm. The side wall 32 of this height can make the root 445 and part of the middle portion 446 of the docking portion 442 both located in the recess 31, so the side wall 32 can limit the left and right sides of the middle portion 446 of the docking portion 442 of the second terminal 44, increase the positioning area of ​​the docking portion 442 of the second terminal 44, and make the size of the docking portion 442 of the plastic block 5 after molding more stable.

[0032] The notch 31 of the second slider 3 can contact the docking portion 442 of the second terminal 44 at a more optimal angle, ensuring that stable and accurate force support is provided to the second terminal 44 at the initial contact stage. At the same time, when the docking portion 442 of the second terminal 44 has abnormal fluctuations, the side wall 32 of the second slider 3 can perform a correction operation on the docking portion 442, effectively compensating for the dimensional deviation, and greatly improving the overall production yield and product quality stability.

[0033] The above are only preferred implementation modes of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An injection mold for an antenna module, comprising a base, a first slider and a second slider, the terminal strip of the antenna module is arranged on the base and is provided with a second terminal, the second terminal is provided with a horizontal holding portion and a vertical docking portion, the second slider is provided with a recess and side walls located on both sides of the recess, the docking portion is located in the recess, the first slider is inserted into the recess and clamps the docking portion together with the second slider in front and back, characterized in that: The docking portion includes a top, a root portion connected to the holding portion, and a middle portion connecting the top and the root portion, the middle portion is in the shape of a sheet that is larger at the top and smaller at the bottom, the root portion and part of the middle portion are both located in the recess, and the side walls are respectively provided with a positioning block in the recess, and the two positioning blocks clamp the root portion on the left and right to position it.

2. The injection mold according to claim 1, characterized in that: The side wall limits the middle portion in left-right directions.

3. The injection mold according to claim 2, characterized in that: The height of the side wall is 1.4 mm-2 mm.

4. The injection mold according to claim 3, characterized in that: The height of the side wall is 1.6 mm.

5. The injection mold according to claim 1, characterized in that: The terminal strip includes a first terminal strip and a second terminal strip, the first terminal strip is provided with a first terminal, the second terminal strip is provided with the second terminal, and the first terminal is in the shape of a horizontally arranged flat plate and is provided with a screw hole.

6. The injection mold according to claim 5, characterized in that: The side edge of the top of the docking portion is connected to the second main strip of the second terminal strip.

7. The injection mold according to claim 5, characterized in that: The first terminal material strip is provided with two auxiliary strips connected to the first terminals, wherein one of the auxiliary strips is connected to the first main strip of the first terminal material strip.

8. The injection mold according to claim 7, characterized in that: The auxiliary belt is provided with a positioning hole, and the base is provided with a positioning column inserted into the positioning hole.

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