Surface-mounted hollow coil and assembling jig thereof

Abstract

The utility model discloses a paster type hollow coil and an assembling tool thereof, the hollow coil comprises a housing and a coil, the housing is internally provided with a mounting hole, the coil is arranged in the mounting hole, and two guide pins of the coil respectively extend out from two ends of the mounting hole. The shell is provided with a first end and a second end which are oppositely arranged, the first end of the shell is provided with a plane part, the second end of the shell is provided with supporting parts, and the supporting parts are located on the two sides of the coil. The assembling jig comprises a base, a positioning hole used for positioning the shell is formed in the base, and a positioning groove used for positioning the guide pin is formed in the top of the base. By means of the assembling jig, the relative position between the shell and the coil can be more accurate, when the hollow coil is assembled to a PCB, SMT equipment can be used for adsorbing the plane part, and the assembling efficiency of the hollow coil can be improved. The supporting part can be assisted by positioning and supporting, so that the coil is prevented from toppling or shifting, it is guaranteed that the hollow coil can be accurately assembled to a target position on the PCB, and the assembling precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, and in particular to a patch type hollow coil and an assembly jig thereof. Background Art

[0002] In some devices, due to special filtering requirements, hollow coils of specific forms and sizes are required. During assembly, the hollow coils are generally placed on the PCB manually, and then the soldering gun is used to melt the tin manually to complete the assembly. This assembly method is not only inefficient, but also because the hollow coils are in the form of hollow cylinders, they cannot be stably supported on the PCB. During the assembly process, the hollow coils are prone to tipping or shifting, which is not only inconvenient to assemble, but also there are cases of tilting, left deviation or right deviation, resulting in low assembly accuracy of the hollow coils. In addition, during assembly, because the hollow coils are not well protected, they are easily deformed by external forces, which not only affects the appearance of the hollow coils, but also affects the size and performance of the hollow coils. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a patch type hollow coil, which can ensure the appearance and performance of the coil and improve the assembly efficiency and assembly accuracy of the hollow coil.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a patch-type hollow coil, including a shell and a coil, the shell is provided with a mounting hole inside, the coil is placed in the mounting hole, and the two guide pins of the coil extend from the two ends of the mounting hole respectively; the shell has a first end and a second end opposite to each other, the first end of the shell has a planar portion, the second end of the shell has a supporting portion, and the supporting portions are located on both sides of the coil.

[0005] Compared with the prior art, the beneficial effect of the utility model is that the hollow coil places the coil in the mounting hole of the shell, which can not only use the shell to protect the coil, but also prevent the coil from being deformed due to extrusion and collision, and ensure the appearance, size and performance of the coil. In addition, the first end of the shell is provided with a plane portion. When the hollow coil is assembled on the PCB, the SMT equipment can be used to adsorb the plane portion, so that the assembly of the hollow coil is realized by patch installation, which can improve the assembly efficiency of the hollow coil. In addition, the second end of the shell is provided with a support portion, which is arranged at an end opposite to the plane portion and is located on both sides of the coil. When the shell is adsorbed from the first end of the shell for SMT assembly, the support portion can be supported from the second end of the shell and on both sides of the coil, and then the guide pins of the coil are welded on the PCB, so as to avoid the coil from tipping over or shifting, which can not only facilitate the assembly of the hollow coil, but also further improve the assembly efficiency of the hollow coil, and also ensure that the hollow coil can be accurately assembled to the target position on the PCB, and improve the assembly accuracy.

[0006] In the above-mentioned chip-type hollow coil, a notch is formed at the second end of the shell, and the notch is communicated with the mounting hole, and the support parts are located on both sides of the notch.

[0007] The above-mentioned patch type hollow coil is glued in the mounting hole.

[0008] In the above-mentioned chip-type hollow coil, a glue groove is provided on the side wall of the mounting hole, and the glue groove is located on a side of the mounting hole close to the first end of the shell.

[0009] The shell of the above-mentioned chip-type hollow coil is made of bakelite material.

[0010] The utility model also provides an assembly jig for assembling and fixing the shell and the coil in the above-mentioned patch-type hollow coil. The assembly jig includes a base, a positioning hole for positioning the shell is provided in the base, and a positioning groove for positioning the guide pin is provided on the top of the base. When assembling the shell and the coil, the coil can be placed in the mounting hole of the shell first, and then the shell is positioned and placed in the positioning hole of the base, and the two guide pins of the coil are positioned and clamped in the positioning grooves on the top of the base. Through the positioning effect of the base, the coil and the shell can maintain an accurate relative position, and then the coil and the shell are fixed together by gluing or other methods. When the hollow coil is assembled on the PCB, the relative position between the coil and the shell will not change. Therefore, the positioning between the shell and the PCB can achieve the positioning between the coil and the PCB, thereby ensuring that the hollow coil can be accurately assembled to the target position on the PCB, thereby improving the assembly accuracy.

[0011] The above-mentioned assembly fixture has side holes on both sides of the base.

[0012] In the above-mentioned assembly jig, the positioning hole is a through hole.

[0013] In the above-mentioned assembly fixture, a plurality of positioning holes are distributed along the length direction of the base.

[0014] The base of the above-mentioned assembly jig is made of bakelite material.

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the hollow coil of the first embodiment of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the shell of the hollow coil of the first embodiment of the utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure shown in the upward view;

[0019] Figure 4 This is a structural schematic diagram of an assembly fixture according to Embodiment 2 of the present utility model;

[0020] Figure 5 This is a schematic diagram of the structure of placing a hollow coil in an assembly fixture in the second embodiment of the present utility model.

[0021] Description of the accompanying drawings: 100 housing, 110 mounting hole, 111 glue groove, 120 plane portion, 130 supporting portion, 140 notch, 200 coil, 210 guide pin, 300 base, 310 positioning hole, 320 positioning groove, 330 side hole. DETAILED DESCRIPTION

[0022] The embodiments of the present utility model are described in detail below:

[0023] Embodiment 1

[0024] Reference Figures 1 to 3The first embodiment of the utility model provides a patch type hollow coil, comprising a housing 100 and a coil 200. The housing 100 has a mounting hole 110, the coil 200 is placed in the mounting hole 110, and two guide pins 210 of the coil 200 extend from both ends of the mounting hole 110 respectively; the housing 100 has a first end and a second end opposite to each other, the first end of the housing 100 has a plane portion 120, the second end of the housing 100 has a support portion 130, and the support portion 130 is located on both sides of the coil 200, and the guide pins 210 of the coil 200 are located on a side of the coil 200 close to the second end of the housing 100, that is, close to the support portion 130. When the hollow coil is assembled on a PCB, the first end of the housing 100 faces away from the PCB, and the second end faces the PCB, so that the support portion 130 at the second end of the housing 100 can be supported on the PCB, and the guide pins 210 of the coil 200 are also attached to the PCB to be fixed by welding.

[0025] The hollow coil places the coil 200 in the mounting hole 110 of the housing 100, which can not only protect the coil 200, but also prevent the coil 200 from being squeezed and collided and deformed, and ensure the appearance and performance of the coil 200. In addition, the first end of the housing 100 is provided with a plane portion 120. When the hollow coil is assembled on the PCB, the plane portion 120 can be adsorbed by SMT equipment, so that the hollow coil can be assembled by patch installation, which can improve the assembly efficiency of the hollow coil. In addition, a support portion 130 is provided at the second end of the shell 100. The support portion 130 is provided at an end opposite to the planar portion 120 and is located on both sides of the coil 200. When the shell 100 is adsorbed from the first end of the shell 100 for SMT assembly, the support portion 130 can be assisted with positioning support from the second end of the shell 100 and on both sides of the coil 200, and then the guide pins 210 of the coil 200 are soldered to the PCB, thereby preventing the coil 200 from tipping over or shifting, and there will be no tilting, left deviation or right deviation. This not only facilitates the assembly of the hollow coil and further improves the assembly efficiency of the hollow coil, but also ensures that the hollow coil can be accurately assembled to the target position on the PCB, thereby improving the assembly accuracy.

[0026] Furthermore, the housing 100 is made of bakelite material, a notch 140 is provided at the second end of the housing 100, and the notch 140 is connected to the mounting hole 110, and the support portion 130 is located on both sides of the notch 140, so that the mounting hole 110 can be deformed to a certain extent, so as to facilitate the assembly of the coil 200 into the mounting hole 110. After the coil 200 is assembled into the mounting hole 110, the coil 200 can be glued into the mounting hole 110 with glue, so the notch 140 can also facilitate the injection of glue into the mounting hole 110. Further, referring to Figure 2A glue groove 111 is provided on the side wall of the mounting hole 110. The glue groove 111 is located on one side of the mounting hole 110 close to the first end of the shell 100. When assembling the coil 200 and the shell 100, first make the first end of the shell 100 face downward and the notch 140 face upward, insert the coil 200 into the mounting hole 110, and then inject glue from the notch 140 or both ends of the mounting hole 110. The glue groove 111 can accumulate glue, which can prevent excessive glue from overflowing and causing adverse effects on the appearance of the hollow coil. When assembling the shell 100 and the coil 200, the glue groove 111 faces upward, which can facilitate the glue to flow downward and enter the glue groove 111. Specifically, the glue groove 111 can be as follows: Figure 2 As shown, the length of the mounting hole 110 is set to be equivalent to that of the mounting hole 110. Of course, the glue groove 111 can also be set as a plurality of smaller grooves distributed on the side wall of the mounting hole 110. Further, the support portion 130 can be as follows Figure 1 As shown, it is a planar structure arranged at the second end of the housing 100, and can also be as shown in Figure 2 As shown, a raised step is provided at the second end of the housing 100 , as long as it can provide support on both sides of the coil 200 to prevent the coil 200 from tipping over or deflecting.

[0027] Embodiment 2

[0028] Reference Figure 4 and Figure 5 Embodiment 2 of the present invention provides a jig for assembling and fixing the shell 100 and the coil 200 in the patch-type hollow coil in Embodiment 1. The jig includes a base 300. A positioning hole 310 for positioning the shell 100 is provided in the base 300. A positioning groove 320 for positioning the guide pin 210 is provided on the top of the base 300. When assembling the shell 100 and the coil 200, the coil 200 can be first placed in the mounting hole 110 of the shell 100, and then the shell 100 can be positioned and placed in the positioning hole 310 of the base 300, and the two guide pins 210 of the coil 200 can be positioned and clamped in the positioning groove 320 on the top of the base 300. Through the positioning effect of the base 300, the coil 200 and the shell 100 can maintain an accurate relative position, and then the coil 200 and the shell 100 can be fixed together by gluing or other methods. When the hollow coil is assembled on the PCB, the relative position between the coil 200 and the shell 100 will not change. Therefore, the positioning between the shell 100 and the PCB can be achieved, thereby ensuring that the hollow coil can be accurately assembled to the target position on the PCB, thereby improving the assembly accuracy.

[0029] Furthermore, side holes 330 are provided on both sides of the base 300. The side holes 330 can be used to observe and adjust the position of the hollow coil, and can also be used to inject glue from both ends of the hollow coil. That is, when injecting glue, it can be injected from the direction of the notch 140 or from the side holes 330 on both sides, and the direction can be flexibly adjusted. Furthermore, the positioning hole 310 is a through hole. The housing 100 can be positioned circumferentially through the side wall of the positioning hole 310. When the base 300 is placed on a processing table, the processing table can also be used to position the flat portion 120 at the first end of the housing 100. The guide pin 210 of the coil 200 is positioned and clamped in the positioning groove 320, and the hollow coil can be positioned from the top and bottom directions, so that the guide pin 210 of the coil 200 can be located in the middle position of the second end of the shell 100, and the support parts 130 on both sides of the guide pin 210 are of the same height, thereby ensuring the accuracy of the relative position between the coil 200 and the shell 100. When subsequently assembled to the PCB, the support part 130 can be used to limit the position of the coil 200. When assembling and fixing the coil 200 and the shell 100, the shell 100 is limited by the base 300 and will not move. After assembly, the hollow coil can be removed directly from the top, and since the positioning hole 310 is a through hole, the shell 100 can also be pushed upward from the lower end of the positioning hole 310 to remove the hollow coil. Furthermore, there are multiple positioning holes 310 distributed along the length direction of the base 300, which can facilitate the simultaneous assembly of multiple shells 100 and coils 200, for example Figure 4 and Figure 5 As shown in , there are three positioning holes 310, and of course, there may be two, four or other numbers. Further, the base 300 is made of bakelite material, which can be easily matched with the shell 100 of the hollow coil, and is more in line with the industry's environmental protection standards and international environmental protection trends.

[0030] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A chip-type hollow coil, characterized in that: It comprises a housing (100) and a coil (200); a mounting hole (110) is provided inside the housing (100); the coil (200) is placed in the mounting hole (110); and two guide pins (210) of the coil (200) extend from two ends of the mounting hole (110); The housing (100) has a first end and a second end that are opposite to each other, the first end of the housing (100) has a plane portion (120), the second end of the housing (100) has a support portion (130), and the support portion (130) is located on both sides of the coil (200).

2. The chip-type hollow coil according to claim 1, characterized in that: A notch (140) is provided at the second end of the housing (100), and the notch (140) is communicated with the mounting hole (110), and the support portion (130) is located on both sides of the notch (140).

3. The chip-type hollow coil according to claim 1, characterized in that: The coil (200) is glued into the mounting hole (110).

4. The chip-type hollow coil according to claim 3, characterized in that: A glue groove (111) is provided on the side wall of the mounting hole (110), and the glue groove (111) is located on a side of the mounting hole (110) close to the first end of the housing (100).

5. The chip-type hollow coil according to claim 1, characterized in that: The housing (100) is made of bakelite material.

6. An assembly jig, characterized in that: The jig is used for assembling and fixing the shell (100) and the coil (200) in the patch-type hollow coil as described in any one of claims 1 to 5, the jig comprises a base (300), a positioning hole (310) for positioning the shell (100) is provided in the base (300), and a positioning groove (320) for positioning the guide pin (210) is provided on the top of the base (300).

7. The assembly jig according to claim 6, characterized in that: Side holes (330) are formed on both sides of the base (300).

8. The assembly jig according to claim 6, characterized in that: The positioning hole (310) is a through hole.

9. The assembly jig according to claim 6, characterized in that: A plurality of positioning holes (310) are distributed along the length direction of the base (300).

10. The assembly jig according to claim 6, characterized in that: The base (300) is made of bakelite material.

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