CN206422998U - Substrates for manufacturing antenna housings with slots - Google Patents

Abstract

The utility model provides a substrate for making have slot antenna casing, this substrate include integrated into one piece's casing district and be located the outlying in casing district even expects the district, even expects the district to be used for carry out position holding to the casing district in the course of working of slot antenna. Compared with the prior art, the utility model provides a be used for making the substrate that has the slot antenna casing, fine solution among the prior art to the joint strength that the fixed mode of slot antenna exists not enough, add the technical problem who causes the slot antenna to warp man-hour easily.

Description

Substrates for manufacturing antenna housings with slots

technical field

The utility model relates to the technical field of shell processing of terminal equipment with antennas, in particular to a base material for manufacturing antenna shells with slots.

Background technique

Many mobile terminal devices in the prior art use metal casings, and the antennas are arranged in the gaps by providing slits on the metal casings. Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a common antenna housing provided with a slot. The mark 1 in the figure is the slot antenna.

When the shell gap is connected by injection molding, the shell is disconnected due to the gap, please refer to Figure 2, Figure 2 is a cross-sectional view of the disconnected position of the slot antenna shell; the marks 31\32\33\34 in the figure are the disconnected shells The four parts of the body, referenced 30, are antenna slots. Therefore, it is necessary to fix the cut shell, otherwise, the slot antenna will be deformed or have poor dimensions during injection molding.

Please refer to FIG. 3 and FIG. 4 together. FIG. 3 is a structural diagram of fixing a disconnected shell in the prior art, and FIG. 4 is a partial enlarged view of FIG. 3 . Among them, the antenna structure with three slits is taken as an example in the figure. The fixing method is to set a plurality of connection blocks 2 (connection bars) inside the casing, and use the connection blocks to connect the disconnected casing (marked 31\32\ The four parts of 33\34) are connected together (that is, the way of bridging), but this method still has the problem of insufficient connection strength, which may easily cause deformation of the microslot antenna during processing.

Utility model content

The embodiment of the utility model provides a base material for manufacturing a housing with a slot antenna to solve the technical problem that the fixing method of the slot antenna in the prior art has insufficient connection strength and the slot antenna is easily deformed during processing.

In order to solve the above technical problems, an embodiment of the present invention provides a base material for manufacturing a housing with a slot antenna, the base material includes an integrally formed housing area and a connecting material located on the periphery of the housing area area, the material connecting area is used to maintain the position of the housing area during the processing of the slot antenna.

According to a preferred embodiment of the present invention, the base material is further provided with at least one slit, and the shell area is cut into at least two shell segments held by the connecting material area by the slit.

According to a preferred embodiment of the present invention, the material connecting area is arranged on the outside of the main side wall of the housing area, and the depth of the gap is set to cut off the main side wall but not cut off the material connecting area , and then the position of the main side wall cut off by the slit is maintained by the material connecting area.

According to a preferred embodiment of the present invention, the material connecting area is arranged on the outer side of the outer peripheral wall of the housing area, and the length of the gap is set to cut off the outer peripheral wall but not cut off the material connecting area, and then by The material connecting area maintains the position of the outer peripheral wall cut by the slit.

According to a preferred embodiment of the present utility model, the main side wall of the housing area and the outer peripheral wall are formed as a depression communicating with one side of the base material.

According to a preferred embodiment of the present invention, the base material is further provided with an insulating material filled in the gap, and the insulating material connects the at least two shell segments divided by the gap and makes the The at least two housing segments are insulated from each other.

According to a preferred embodiment of the present invention, the insulating material forms a connecting portion in the recessed portion for connecting the insulating material in the gap.

According to a preferred embodiment of the present invention, the connecting portion is configured to cover the gap as a whole.

Compared with the prior art, the utility model provides a base material for manufacturing an antenna housing with a slot, by covering and setting a joint material area with an integrated structure on the outer circumference of the housing area, and then cutting out the housing area for Define the slot of the slot antenna, where the depth of the slot is to cut through the shell area and not cut through the connecting material area. When filling the gap in the shell area, since the connecting material area and the shell area are integrated , the connecting material area can reliably fix the shell area, and after the gap filling is completed, the connecting material area is removed and the shell area is retained to form the shell. The technical solution of the utility model well solves the technical problem that the connection strength of the fixing method of the slot antenna in the prior art is insufficient, and the slot antenna is easily deformed during processing.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

FIG. 1 is a schematic diagram of a common antenna housing provided with a slot;

Fig. 2 is a sectional view of the disconnected position of the slot antenna housing;

Fig. 3 is a structural schematic diagram of fixing a disconnected shell in the prior art;

Fig. 4 is a partially enlarged view among Fig. 3;

Fig. 5 is a schematic flow chart of an embodiment of the method for manufacturing a housing with a slot antenna according to the present invention;

Fig. 6 is a schematic diagram of the structure after cutting the base material to complete the gap;

Fig. 7 is a cut sectional view of the main side wall and the material connection area;

Fig. 8 is a partially enlarged schematic view of the substrate in Fig. 6;

Fig. 9 is a schematic diagram of the structure after the gap of the base material is filled with insulating material;

FIG. 10 is an enlarged schematic view of the partial structure in FIG. 9 .

detailed description

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail. In particular, the following examples are only used to illustrate the utility model, but not to limit the scope of the utility model. Likewise, the following embodiments are only some of the embodiments of the present utility model rather than all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts all belong to the protection scope of the present utility model.

The casing with the slot antenna in the embodiment of the utility model can be used in mobile terminal equipment such as mobile phones and tablet computers.

Please refer to FIG. 5 . FIG. 5 is a schematic flow chart of an embodiment of a method for manufacturing a casing with a slot antenna according to the present invention. The method includes but is not limited to the following steps.

Step S110 , providing a base material, wherein the base material includes an integrally formed shell area and a connecting material area located on the periphery of the shell area.

In this step, since the shell area included in the base material and the material-connecting area located at the periphery of the shell area are integrally structured, after the material-connecting area is subsequently removed, the remaining part is the shell. Therefore, the base material here needs Ensure that its size is larger than the final required shell size plus a certain margin as the material connection area, and the size of the material connection area is determined according to the required connection strength and processing accuracy of the processing machine. It is not done here. Specific limits.

Step S120 , cutting a slit for defining the slot antenna on the shell area, so that the shell area is cut into at least two shell segments held by the connecting material area by the slit.

Please refer to FIG. 6 . FIG. 6 is a schematic diagram of the structure of the base material after the slits are cut. The illustration in this embodiment is an example of a shell with three slits. The three slits divide the shell into four sections. Of course, in other embodiments, it may also be an antenna housing with one, two or more slot structures, which will not be listed here.

Preferably, when cutting the slit 130 for defining the slot antenna on the casing area 100 , the base material is cut from the side where the recessed portion is located to the opposite side, thereby forming the slit 130 overlapping with the recessed portion.

It should be noted that, in this embodiment, the final molded housing is a mobile terminal back cover with an integral structure and a side wall with an integral structure around the rear cover. Therefore, the housing area 100 in the base material includes the main side wall 110 (corresponding to the back cover of the mobile terminal after molding) and the peripheral wall 120 (corresponding to the side wall of the mobile terminal after molding), and the material connecting area 200 is preferably simultaneously It is arranged on the outside of the main side wall 110 and the outer peripheral wall 120 of the housing area, that is, the main side wall 110 and the outer peripheral wall 120 of the housing area 100 are thickened structures, and the main side wall 110 and the outer peripheral wall of the housing area 100 120 is defined as a depression communicating with one side of the substrate, and the material-connecting area 200 is located outside the shell area 100 away from the depression. Wherein, the recessed part can be understood as the interior of the housing after subsequent molding, or in other words, becomes the internal accommodating cavity of the mobile terminal.

Please refer to FIG. 7 . FIG. 7 is a cut-away cross-sectional view of the main side wall and the material-connecting area. In this step, when the slit 130 for defining the slot antenna is cut on the casing area, the depth of the slit 130 is set to cut off the main side wall 110 but not cut off the connecting material area 200 connected thereto, and then the connecting material area 200 The position of the main side wall 110 cut off by the slit 130 is maintained. In the figure, the dotted line between the main side wall 110 and the feeding area 200 indicates the position where the feeding area 200 needs to be removed at last. In the figure, D1 indicates the thickness of the main side wall 110 of the casing, and D2 indicates that it is integrated with the main side wall 110 The thickness of the connected material zone 200.

Please continue to refer to FIG. 6, preferably, the dimension L1 of the connecting material area 200 along the length direction of the slit 130 is set to be equal to or greater than the dimension L2 of the main side wall 110 along the length direction of the slit 130, so that the material connecting area 200 can be guaranteed The entire length of the slit 130 of the main side wall 110 can be effectively connected with the main side wall 110 to maintain the positions of the four cut parts of the shell region 100 .

Further preferably, since the outer peripheral wall 120 of the housing area 100 is also provided with the connecting material area 200, the length of the slit 130 is also set to cut off the outer peripheral wall 120 but not cut off the material connecting area 200, and then the connecting material area 200 simultaneously The positions of the outer peripheral wall 120 and the main side wall 110 divided by the slit 130 are maintained. Please refer to FIG. 8 . FIG. 8 is a partially enlarged schematic view of the substrate in FIG. 6 . On the extension length of the slit 130 , there is a distance of L3 between the outermost end and the outer peripheral wall connecting area 200 .

What is shown in the illustration of this embodiment is that the outer peripheral wall 120 and the main side wall 110 of the housing area 100 are connected to the material connecting area 200; The connecting material area 200 is not cut off. In terms of depth, the slit 130 is set to cut off the main side wall 110 but not to cut off the connecting material area 200 connected thereto; The outer side of one of the peripheral wall 120 or the main side wall 110 is integrally provided with a material connecting area 200 .

When the structure that the connecting material area 200 is integrally provided only outside the outer peripheral wall 120 of the housing area 100, when cutting the slit used to define the slot antenna, it is only necessary to ensure that the slit 130 is set to cut off the outer peripheral wall 120 but not cut off the connecting material area. 200, and the main side wall 110 is directly cut through. In the subsequent processing process, only the outer peripheral wall 120 of the shell area 100 is used to integrally set the connecting material area 200 to maintain the position of the shell area 100. Support.

However, in the case of the structure in which the connecting material area 200 is integrally provided only outside the main side wall 110 of the housing area 100, when cutting the slot for defining the slot antenna, it is only necessary to ensure that the slot 130 is set to be cut from the depth. The main side wall 110 does not cut off the connecting material area 200 connected with it. In the subsequent processing of the base material of this structure, only the outer side of the main side wall 110 of the housing area 100 is used to integrally set the material connecting area 200 for The housing area 100 performs position maintaining support.

Further, even if the outer peripheral wall 120 and the main side wall 110 of the casing area 100 are connected to the material-connecting area 200, when cutting the slot 130 for defining the slot antenna, the depth or extension length of the slot 130 may be limited. Come up to restraint.

For example: just constraining from the depth of the slit 130, the slit 130 can be set to cut off the main side wall 110 but not to cut off the connecting material area 200 connected thereto, and the slit 130 extends the outer peripheral wall 120 on both sides and is connected with the outer peripheral wall 120 The integrally connected connecting material area 200 can be cut through laterally or as long as the thickness of the outer peripheral wall 120 is guaranteed to be cut.

When only restricting from the extension length of the slit 130, the length of the slit 130 needs to be set to cut off the peripheral wall 120 but not to cut off the connecting material area 200 integrally connected with it, that is, the length of the slit 130 is set to be greater than the two opposite peripheries The distance between the walls 120 is less than the width of the outer connecting material area 200 of the corresponding outer peripheral wall 120. In terms of depth, it is only required to ensure that the main side wall 110 is cut through (or completely cut off), and there is no need to limit it. Cut to the depth of the material connecting area 200 connected to the main side wall 110 , of course, it is also possible to completely cut through the material connecting area 200 connected to the main side wall 110 .

Step S130 , filling the gap with an insulating material, so that the insulating material connects the at least two shell segments divided by the gap and insulates the at least two shell segments from each other.

Wherein, the method of filling the insulating material in the gap can adopt the nano-injection molding process, and the specific process of the nano-injection molding is within the scope of understanding of those skilled in the art, and will not be described in detail here.

Please refer to FIG. 9 and FIG. 10 together. FIG. 9 is a schematic diagram of the structure after the gap of the substrate is filled with insulating material, and FIG. 10 is an enlarged schematic diagram of the partial structure in FIG. 9 . Preferably, in the process of filling the insulating material 140 in the gap, the insulating material can also be used to form a connecting part 150 in the recessed part for connecting the insulating material 140 in the gap 130, and the connecting part 150 is integrally injected with the insulating material 140 in the gap Molding, the connecting portion 150 is arranged to cover the gap as a whole, thereby strengthening the connection to the insulating material 140 in the gap 130 , and also to facilitate the implementation of the process of injecting the insulating material 140 in the gap 130 .

Step S140 , removing the connecting material area from the base material and retaining the shell area, thereby forming the shell.

Please continue to refer to FIG. 7 and FIG. 10. In this step, the material connecting area 200 can be removed from the base material by CNC machine tools and other equipment, and at the same time, the connection part 150 formed in the concave part for connecting the insulating material 140 in the gap can be removed. What remains is the final molded shell. As for the specific process of removing the material-connecting area 200 from the base material, it is within the scope of understanding of those skilled in the art, and will not be described in detail here.

Compared with the prior art, the utility model provides a method for manufacturing an antenna housing with a slot, by covering and setting a joint material area with an integrated structure on the outer circumference of the housing area, and then cutting out the housing area for defining The slot of the slot antenna, wherein the depth of the slot is to cut through the shell area and not to cut through the connecting material area. When filling the gap in the shell area, since the connecting material area and the shell area are integrally structured, The material connecting area can reliably fix the shell area. After the gap filling is completed, the material connecting area is removed and the shell area is retained to form the shell. The technical solution of the utility model well solves the technical problem that the connection strength of the fixing method of the slot antenna in the prior art is insufficient, and the slot antenna is easily deformed during processing.

Furthermore, the embodiment of the present utility model also provides a base material for manufacturing a housing with a slot antenna, the base material includes an integrally formed housing area and a material connecting area located on the periphery of the housing area, and the material connecting area is used for This is used to maintain the position of the housing area during the processing of the slot antenna.

Since the shell area included in the base material and the connecting material area located on the periphery of the shell area are integrated, after the material connecting area is removed later, the remaining part is the shell. Therefore, the base material here needs to ensure that its size is larger than The final required shell size plus a certain margin as the material connection area, and the size of the material connection area is determined according to the required connection strength and the processing accuracy of the processing machine, and is not specifically limited here.

Preferably, the base material is further provided with at least one slit, and the shell area is divided by the slit into at least two shell segments held by the connecting material area.

Please refer to FIG. 6 . FIG. 6 is a schematic diagram of the structure of the base material after the slits are cut. The illustration in this embodiment is an example of a shell with three slits. The three slits divide the shell into four sections. Of course, in other embodiments, it may also be an antenna housing with one, two or more slot structures, which will not be listed here.

Preferably, when cutting the slit 130 for defining the slot antenna on the casing area 100 , the base material is cut from the side where the recessed portion is located to the opposite side, thereby forming the slit 130 overlapping with the recessed portion.

It should be noted that, in this embodiment, the final molded housing is a mobile terminal back cover with an integral structure and a side wall with an integral structure around the rear cover. Therefore, the housing area 100 in the base material includes the main side wall 110 (corresponding to the back cover of the mobile terminal after molding) and the peripheral wall 120 (corresponding to the side wall of the mobile terminal after molding), and the material connecting area 200 is preferably simultaneously It is arranged on the outside of the main side wall 110 and the outer peripheral wall 120 of the housing area, that is, the main side wall 110 and the outer peripheral wall 120 of the housing area 100 are all thickened structures, and the main side wall 110 and the outer peripheral wall of the housing area 100 120 is defined as a depression communicating with one side of the substrate, and the material-connecting area 200 is located outside the shell area 100 away from the depression. Wherein, the recessed part can be understood as the interior of the housing after subsequent molding, or in other words, becomes the internal accommodating cavity of the mobile terminal.

Please refer to FIG. 7 . FIG. 7 is a cut-away cross-sectional view of the main side wall and the material-connecting area. In this step, when the slit 130 for defining the slot antenna is cut on the casing area, the depth of the slit 130 is set to cut off the main side wall 110 but not cut off the connecting material area 200 connected thereto, and then the connecting material area 200 The position of the main side wall 110 cut off by the slit 130 is maintained. In the figure, the dotted line between the main side wall 110 and the feeding area 200 indicates the position where the feeding area 200 needs to be removed at last. In the figure, D1 indicates the thickness of the main side wall 110 of the casing, and D2 indicates that it is integrated with the main side wall 110 The thickness of the connected material zone 200.

Please continue to refer to FIG. 6, preferably, the dimension L1 of the connecting material area 200 along the length direction of the slit 130 is set to be equal to or greater than the dimension L2 of the main side wall 110 along the length direction of the slit 130, so that the material connecting area 200 can be guaranteed The entire length of the slit 130 of the main side wall 110 can be effectively connected with the main side wall 110 to maintain the positions of the four cut parts of the shell region 100 .

Further preferably, since the outer peripheral wall 120 of the housing area 100 is also provided with the connecting material area 200, the length of the slit 130 is also set to cut off the outer peripheral wall 120 but not cut off the material connecting area 200, and then the connecting material area 200 simultaneously The positions of the outer peripheral wall 120 and the main side wall 110 divided by the slit 130 are maintained. Please refer to FIG. 8 . FIG. 8 is a partially enlarged schematic view of the substrate in FIG. 6 . On the extension length of the slit 130 , there is a distance of L3 between the outermost end and the outer peripheral wall connecting area 200 .

What is shown in the illustration of this embodiment is that the outer peripheral wall 120 and the main side wall 110 of the housing area 100 are connected to the material connecting area 200; The connecting material area 200 is not cut off. In terms of depth, the slit 130 is set to cut off the main side wall 110 but not to cut off the connecting material area 200 connected thereto; The outer side of one of the peripheral wall 120 or the main side wall 110 is integrally provided with a material connecting area 200 .

When the structure that the connecting material area 200 is integrally provided only outside the outer peripheral wall 120 of the housing area 100, when cutting the slit used to define the slot antenna, it is only necessary to ensure that the slit 130 is set to cut off the outer peripheral wall 120 but not cut off the connecting material area. 200, and the main side wall 110 is directly cut through. In the subsequent processing process, only the outer peripheral wall 120 of the shell area 100 is used to integrally set the connecting material area 200 to maintain the position of the shell area 100. Support.

However, in the case of the structure in which the connecting material area 200 is integrally provided only outside the main side wall 110 of the housing area 100, when cutting the slot for defining the slot antenna, it is only necessary to ensure that the slot 130 is set to be cut from the depth. The main side wall 110 does not cut off the connecting material area 200 connected with it. In the subsequent processing of the base material of this structure, only the outer side of the main side wall 110 of the housing area 100 is used to integrally set the material connecting area 200 for The housing area 100 performs position maintaining support.

Further, even if the outer peripheral wall 120 and the main side wall 110 of the casing area 100 are connected to the material-connecting area 200, when cutting the slot 130 for defining the slot antenna, the depth or extension length of the slot 130 may be limited. Come up to restraint.

For example: just constraining from the depth of the slit 130, the slit 130 can be set to cut off the main side wall 110 but not to cut off the connecting material area 200 connected thereto, and the slit 130 extends the outer peripheral wall 120 on both sides and is connected with the outer peripheral wall 120 The integrally connected connecting material area 200 can be cut through laterally or as long as the thickness of the outer peripheral wall 120 is guaranteed to be cut.

When only restricting from the extension length of the slit 130, the length of the slit 130 needs to be set to cut off the peripheral wall 120 but not to cut off the connecting material area 200 integrally connected with it, that is, the length of the slit 130 is set to be greater than the two opposite peripheries The distance between the walls 120 is less than the width of the outer connecting material area 200 of the corresponding outer peripheral wall 120. In terms of depth, it is only required to ensure that the main side wall 110 is cut through (or completely cut off), and there is no need to limit it. Cut to the depth of the material connecting area 200 connected to the main side wall 110 , of course, it is also possible to completely cut through the material connecting area 200 connected to the main side wall 110 .

The base material is further provided with an insulating material 140 filled in the gap 130, the insulating material 140 connects and insulates at least two housing segments divided by the gap 130 from each other.

Wherein, the method of filling the insulating material in the gap can adopt the nano-injection molding process, and the specific process of the nano-injection molding is within the scope of understanding of those skilled in the art, and will not be described in detail here.

Please refer to FIG. 9 and FIG. 10 together. FIG. 9 is a schematic diagram of the structure after the gap of the substrate is filled with insulating material, and FIG. 10 is an enlarged schematic diagram of the partial structure in FIG. 9 . Preferably, during the process of filling the insulating material 140 in the gap, the insulating material can also be used to form a connection part 150 in the recessed part for connecting the insulating material 140 in the gap 130, and the connecting part 150 is integrally injected with the insulating material 140 in the gap Molding, the connecting portion 150 is arranged to cover the gap as a whole, thereby strengthening the connection to the insulating material 140 in the gap 130 , and also to facilitate the implementation of the process of injecting the insulating material 140 in the gap 130 .

When the shell is finally formed, the material-connecting area 200 can be removed from the base material by CNC machine tools and other equipment, and at the same time, the connection part 150 formed in the concave part for connecting the insulating material 140 in the gap can be removed, and the remaining part is the final part. Formed shell. As for the specific process of removing the material-connecting area 200 from the base material, it is within the scope of understanding of those skilled in the art, and will not be described in detail here.

Compared with the prior art, the utility model provides a base material for manufacturing a housing with a slot antenna, by setting the housing area and the connecting material area of an integrated structure, and then setting the slot for defining the slot antenna on the housing area , wherein, the depth of the gap is to cut through the shell area and not cut through the connecting material area. When filling the gap in the shell area, since the connecting material area and the shell area are integrated, the connecting material area can be Reliably realize the fixing of the shell area. After the gap filling is completed, remove the connecting material area and retain the shell area to form the shell. The technical solution of the utility model well solves the technical problem that the connection strength of the fixing method of the slot antenna in the prior art is insufficient, and the slot antenna is easily deformed during processing.

The above descriptions are only part of the embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Any equivalent device or equivalent process transformation made by using the description of the utility model and the contents of the accompanying drawings may be directly or indirectly used in Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (10)

1. a kind of be used to manufacture the base material with slot antenna housing, it is characterised in that the base material includes integrally formed shell Body area and the peripheral Lian Liao areas positioned at the housing area, it is right in the process of the slot antenna that the Lian Liao areas are used for The housing area carries out position holding.

2. base material according to claim 1, it is characterised in that the base material is further provided with an at least gap, described At least two shell sections kept by the Lian Liao areas are cut off into by the gap in housing area.

3. base material according to claim 2, it is characterised in that the housing area includes major side wall and periphery wall, the master Side wall and periphery wall integrative-structure connection.

4. base material according to claim 3, it is characterised in that the Lian Liao areas are arranged at the major side wall in the housing area Outside.

5. base material according to claim 4, it is characterised in that the depth in the gap be arranged to cut off the major side wall but The Lian Liao areas are not cut off, and then position holding is carried out to the major side wall cut off by the gap by the Lian Liao areas.

6. base material according to claim 3, it is characterised in that the Lian Liao areas are arranged at the periphery wall in the housing area Outside, the length in the gap is arranged to cut off the periphery wall but does not cut off the Lian Liao areas, and then by the Lian Liao areas pair The periphery wall cut off by the gap carries out position holding.

7. base material according to claim 4, it is characterised in that the major side wall in the housing area is enclosed with the periphery wall to be set as The depressed part connected with the side of the base material.

8. base material according to claim 7, it is characterised in that the base material is further provided with being filled in the gap Insulating materials, at least two shell section that insulating materials connection is divided into by the gap and cause it is described extremely Few two shell sections are insulated from each other.

9. base material according to claim 8, it is characterised in that the insulating materials is formed in the depressed part for connecting Connect the connecting portion of the insulating materials in the gap.

10. base material according to claim 9, it is characterised in that the connecting portion sets the integral covering gap.