CN217011131U - FPC fixed knot constructs and earphone box that charges - Google Patents

Abstract

The utility model provides an FPC fixing structure and an earphone charging box. The FPC fixing structure comprises an FPC and a mounting seat, the mounting seat is provided with a mounting groove, one end of the FPC is arranged in the mounting groove, and the wall surface of the mounting groove can clamp the FPC together along the thickness direction of the FPC. The earphone charging box comprises a box body, a power supply, a main board and the FPC fixing structure. According to the utility model, the installation convenience of the FPC is high, and the installation efficiency of the FPC and the overall assembly efficiency of the earphone charging box are both higher.

Description

FPC fixed knot constructs and earphone box that charges

Technical Field

The utility model relates to the technical field of earphone charging boxes, in particular to a Flexible Printed Circuit (FPC) fixing structure and an earphone charging box.

Background

In order to realize certain functions, electronic elements such as a sensor and the like are arranged on the inner wall of the box body of a part of the earphone charging box. For example, in order to detect whether the upper cover of the earphone charging box is opened, the inner wall of the lower case may be provided with a hall switch, and accordingly, the upper case is fixed with a magnet that may trigger the hall switch. The electronic component may be disposed on an FPC (flexible printed circuit) at one end thereof, and the other end of the FPC is electrically connected to a main board of the earphone charging box so that the main board can receive a signal of the electronic component.

However, in order to fix one end of the FPC to the box body, the conventional FPC fixing method is cumbersome and not beneficial to improve the mounting efficiency of the FPC.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the FPC fixing structure which is beneficial to improving the installation efficiency of the FPC.

The utility model also provides an earphone charging box with the FPC fixing structure.

The FPC fixing structure according to an embodiment of the first aspect of the present invention includes: FPC; the mounting seat is provided with a mounting groove, one end of the FPC is arranged in the mounting groove, and the wall surface of the mounting groove is along the thickness direction of the FPC for clamping the FPC together.

The FPC fixing structure provided by the embodiment of the utility model at least has the following beneficial effects: according to the FPC fixing structure, the FPC is clamped along the thickness direction of the FPC by utilizing the wall surface of the mounting groove so as to fix the FPC, and when an assembler assembles the FPC and the mounting seat, the FPC only needs to be inserted into the mounting groove until the wall surface of the mounting groove clamps the FPC.

According to some embodiments of the present invention, the mounting groove has a first through hole and a second through hole which are communicated with each other, the first through hole and the second through hole are disposed on an outer surface of the mounting seat and located on two adjacent sides of the mounting seat, the FPC is inserted through the second through hole, and the first through hole can allow the FPC to pass through.

According to some embodiments of the present invention, the mounting seat further has a positioning groove, the positioning groove is communicated with the mounting groove, the positioning groove has a positioning inlet, and the positioning inlet and the first penetrating port are disposed on the same side of the mounting seat and are communicated with each other; the FPC comprises a substrate and a positioning body, wherein the substrate is flexible, the positioning body protrudes relative to the surface of the substrate, the positioning inlet can be penetrated by the positioning body, the positioning body is contained in the positioning groove, and the substrate is contained in the mounting groove.

According to some embodiments of the present invention, the FPC is inserted into the second insertion hole, a surface of the mounting seat on a side where the first insertion hole is provided is a start surface, a wall surface of the mounting groove on an end away from the first insertion hole is a limiting surface, and a height of the mounting groove gradually decreases from the start surface to the limiting surface.

According to some embodiments of the present invention, the mounting groove has a through hole, the FPC is inserted through the through hole, and one end of the FPC is disposed in the mounting groove.

According to some embodiments of the present invention, the mounting seat further has a positioning groove, the positioning groove is communicated with the mounting groove, the positioning groove has a positioning inlet, and the positioning inlet and the penetrating port are disposed on the same side of the mounting seat and are communicated with each other; the FPC comprises a substrate and a positioning body, the substrate is flexible, the positioning body protrudes relative to the substrate, the positioning inlet can be penetrated by the positioning body, the positioning body is contained in the positioning groove, and the substrate is contained in the mounting groove.

According to some embodiments of the utility model, a side surface of the mounting seat, on which the through hole is formed, is a starting surface, a wall surface of one end of the mounting groove, which is far away from the through hole, is a limiting surface, and the height of the mounting groove gradually decreases from the starting surface to the limiting surface.

According to some embodiments of the utility model, the FPC comprises a substrate having flexibility and a reinforcing plate attached to an end of the substrate located in the mounting groove, at least a portion of the reinforcing plate being located in the mounting groove.

An earphone charging box according to a second aspect embodiment of the present invention includes the FPC fixing structure of the first aspect embodiment.

The earphone charging box provided by the embodiment of the utility model at least has the following beneficial effects: the FPC of the earphone charging box has high installation convenience, the earphone charging box has high assembly convenience,

additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is an assembly view of an FPC mounting structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the FPC mounting structure shown in FIG. 1;

FIG. 3 is a partial schematic view of the mount of FIG. 2;

FIG. 4 is a perspective cross-sectional view of the mount of FIG. 2;

FIG. 5 is a perspective cross-sectional view of another angle of the mount of FIG. 2;

FIG. 6 is a front view of the mount of FIG. 2;

FIG. 7 is a schematic view of an assembly method of an FPC fixing structure according to another embodiment of the present invention;

fig. 8 is a schematic view of the earphone charging box of the present invention;

fig. 9 is a schematic view of the internal structure of the earphone charging box;

fig. 10 is a schematic view showing the mounting position of the mounting seat in the earphone charging box;

fig. 11 is a perspective sectional view of the earphone charging box (upper cover omitted).

Reference numerals are as follows: 101-mounting seat, 102-FPC, 103-mounting groove, 104-positioning groove, 105-positioning body, 106-clamping hole, 201-base plate, 202-reinforcing plate, 300-penetrating port, 301-first penetrating port, 302-second penetrating port, 303-positioning inlet, 304-avoiding port, 601-starting surface, 602-limiting surface, 801-earphone charging box, 802-upper cover, 803-box body, 901-mounting cavity, 902-main plate, 903-second connector, 904-first connector, 905-clamping body, 1101-middle cover, 1102-containing cavity and 1103-battery 1103.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present numbers, and larger, smaller, inner, etc. are understood as including the present numbers. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 7, the present invention provides an FPC fixing structure. The FPC fixing structure includes a mounting seat 101 and an FPC102, the mounting seat 101 having a mounting groove 103, one end of the FPC102 being inserted into the mounting groove 103, a wall surface of the mounting groove 103 being capable of sandwiching the FPC102 in a thickness direction of the FPC102, thereby fixing an end portion of the FPC 102. Correspondingly, the utility model also provides a method for fixing the FPC102, wherein the method for fixing the FPC102 comprises the following steps of: the end of the FPC102 is inserted into the mounting groove 103 so that the wall surface of the mounting groove 103 sandwiches the FPC102 in the thickness direction of the FPC 102.

According to the FPC fixing structure, the FPC102 is clamped along the thickness direction of the FPC102 by utilizing the wall surface of the mounting groove 103 so as to fix the FPC102, when an assembler assembles the FPC102 and the mounting seat 101, the FPC102 only needs to be inserted into the mounting groove 103 until the wall surface of the mounting groove 103 clamps the FPC102, the FPC fixing structure is high in assembling convenience, and the mounting efficiency of the FPC102 is improved.

Specifically, referring to fig. 1 to 5, in some embodiments, the mounting groove 103 has two through holes 300 that are communicated with each other, the two through holes 300 are a first through hole 301 and a second through hole 302, respectively, the first through hole 301 and the second through hole 302 are both disposed on an outer surface of the mounting seat 101, and the first through hole 301 and the second through hole 302 are respectively located on two adjacent sides of the mounting seat 101. In the specific directions shown in fig. 1 to 3, the upper side wall surface and the lower side wall surface of the mounting groove 103 jointly clamp the FPC 102; referring to fig. 1, after the FPC102 is fixed, the FPC102 is inserted into the second insertion hole 302. In addition, the first through hole 301 is set to be large enough, and the first through hole 301 can be passed by the FPC102, so that the FPC102 can enter the mounting groove 103. With reference to fig. 1 and 2, in this arrangement, FPC102 is mounted in substantially the following manner: the relative position and relative orientation between the FPC102 and the mounting seat 101 are substantially adjusted to the state shown in fig. 2, and then the assembler holds the FPC102 by hand to move the FPC102 from right to left, so that the FPC102 passes through the first penetrating opening 301; then, the FPC102 will move along the second through hole 302 until the mounting base 101 clamps the FPC 102.

Referring to fig. 7, in other embodiments, the mounting groove 103 has only one through hole 300, and similarly, the through hole 300 is disposed on the outer surface of the mounting seat 101, and the upper side wall surface and the lower side wall surface of the mounting groove 103 jointly clamp the FPC 102. In this arrangement, the FPC102 is mounted substantially as follows: the end of the FPC102 is faced to the through-hole 300, and then the FPC102 is moved so that the FPC102 is inserted into the mounting groove 103 from the through-hole 300.

It should be noted that, since the FPC102 can be bent or bended, the thickness direction of the FPC102 mentioned in the present invention is based on the thickness direction of the substrate 201 at the section where the FPC102 is located in the mounting groove 103.

In order to improve the ease of operation of inserting the FPC102 into the mounting groove 103, a reinforcing plate 202 may be provided in the FPC102 to increase the strength and thickness of the end of the FPC102 inserted into the mounting groove 103. Specifically, referring to fig. 2, the FPC102 includes a substrate 201 and a reinforcing plate 202, the substrate 201 has flexibility, the reinforcing plate 202 is attached to the surface of the substrate 201, and the reinforcing plate 202 is disposed at one end of the substrate 201 accommodated in the mounting groove 103. The reinforcing plate 202 is also accommodated in the mounting groove 103 and is supported by the wall surface of the mounting groove 103; if the reinforcing plate 202 is not provided, the wall surface of the mounting groove 103 directly contacts and holds the substrate 201.

The reinforcing plate 202 may be a steel sheet, and the material of the reinforcing plate 202 may also be a commonly used reinforcing material such as PI (polyimide), FR-4(FR-4 grade glass fiber epoxy resin), and the like. The shape of the stiffener 202 needs to be properly set to avoid the circuit and the electronic components on the substrate 201. The reinforcing plate 202 may be attached to one surface of the substrate 201, or the reinforcing plates 202 may be attached to both sides of the substrate 201.

Compared with the FPC102 without the reinforcing plate 202, the thickness and hardness of the end portion of the FPC102 with the reinforcing plate 202 are larger, the end portion of the FPC102 is less prone to collapse when an assembler holds the FPC102, and the operation of inserting the FPC102 with the reinforcing plate 202 into the installation groove 103 is more convenient. In addition, the thickness of the end of the FPC102 disposed in the mounting groove 103 is large, and accordingly, the height of the mounting groove 103 may also be set large, so as to prevent the mounting groove 103 from being too small in height to cause too high processing difficulty of the mounting seat 101 and difficulty in inserting the FPC102 into the mounting groove 103.

In order to improve the ease of assembly of the FPC102, a positioning body 105 may be provided in the FPC102, and a positioning groove 104 may be provided in the mount 101.

Specifically, referring to fig. 1 to 3, in the case where the mounting groove 103 has a first through hole 301 and a second through hole 302, the mounting seat 101 has a positioning groove 104, and the bottom of the positioning groove 104 and the top of the mounting groove 103 communicate with each other. One end of the positioning slot 104 has a positioning inlet 303, the positioning inlet 303 is disposed on the outer surface of the mounting base 101, and the positioning inlet 303 is communicated with the first penetrating opening 301 and is located on the same side of the mounting base 101. Alternatively, referring to fig. 7, the mounting groove 103 has only one through opening 300, and the positioning inlet 303 and the through opening 300 are communicated with each other and located on the same side of the mounting seat 101.

Referring to fig. 2, the FPC102 includes a substrate 201 and a positioning body 105, the substrate 201 has flexibility, a surface of the substrate 201 may be printed with a circuit, and the positioning body 105 may be directly connected to the substrate 201 and protrude with respect to the surface of the substrate 201. The positioning inlet 303 is capable of allowing the positioning body 105 to pass through, the positioning body 105 is accommodated in the positioning slot 104, and the substrate 201 is located in the mounting groove 103. The wall surface of the positioning groove 104 can abut against the positioning body 105, so that the mounting seat 101 and the FPC102 are positioned. Taking fig. 1 and 2 as an example, the wall surface of the positioning slot 104 can restrict the movement of the positioning body 105 along the front-back direction.

Referring to fig. 2 or 7, in the case where positioning body 105 and positioning groove 104 are provided, positioning body 105 is slid into positioning groove 104 while base plate 201 is slid into mounting groove 103 (or base plate 201 and reinforcing plate 202 are slid into mounting groove 103 together). Therefore, the positioning matching between the positioning groove 104 and the positioning body 105 can ensure the position stability of the FPC102 after the FPC102 is installed, and can guide the movement of the FPC102 in the movement process of the FPC102, thereby facilitating the installation of the FPC 102.

The positioning body 105 can be adjusted as appropriate, the positioning body 105 in fig. 2 and 7 is formed in a cube shape, and the positioning body 105 may be formed in other polygonal column shapes, cylindrical shapes, spherical shapes, and the like. In addition, the positioning body 105 mainly functions as positioning and guiding, and does not need to be connected to a circuit on the FPC 102. If the FPC102 includes the substrate 201, the reinforcing plate 202, and the positioning body 105, the positioning body 105 may be directly attached to a surface of the reinforcing plate 202 opposite to the substrate 201 and may protrude from the reinforcing plate 202 and the substrate 201.

In addition, referring to fig. 3 and 7, the mounting groove 103 further has an avoiding opening 304, the avoiding opening 304 is also disposed on the outer surface of the mounting seat 101, and the avoiding opening 304 can prevent the mounting seat 101 from shielding some electronic components of the FPC102, so as to prevent the mounting seat 101 from affecting the normal operation of the electronic components. For example, one end of the FPC102 accommodated in the mounting groove 103 has a hall switch, and the hall switch may be disposed below the avoiding opening 304, so as to prevent the mounting seat 101 from shielding the hall switch and affecting the accuracy thereof; or, the end of the FPC102 accommodated in the mounting groove 103 has an LED light emitting chip, and the light emitting chip may be disposed below the avoiding opening 304 so that light of the light emitting chip is emitted.

In order to reduce the resistance of insertion of the FPC102 into the mounting groove 103 for mounting of the FPC102, the height of the mounting groove 103 may be set to be gradually reduced.

Specifically, referring to fig. 1 and 6, in some embodiments, a side surface of the mounting seat 101 provided with the first through hole 301 is a starting surface 601, and an end wall surface of the mounting groove 103 far away from the first through hole 301 is a limiting surfaceThe surface 602 and the wall surface of the mounting groove 103 away from the first through opening 301 are limiting surfaces 602, and the height of the mounting groove 103 gradually decreases from the starting surface 601 to the limiting surfaces 602. The dimension of the mounting groove 103 in the thickness direction of the FPC102 is the height of the mounting groove 103. With reference to the specific direction of fig. 6, the dimension of the mounting groove 103 in the vertical direction is the height of the mounting groove 103, and the height of the right end of the mounting groove 103 is L₁The height of the left end of the mounting groove 103 is L₂，L₁>L₂And the height of the mounting groove 103 is gradually reduced from right to left.

Similarly, referring to fig. 7, in other embodiments, in the case that only one through hole 300 is provided on the surface of the mounting seat 101, a side surface of the mounting seat 101 on which the through hole 300 is provided is taken as a starting surface 601, and an end wall surface of the mounting groove 103 far away from the through hole 300 is taken as a limiting surface 602; the height of the installation groove 103 gradually decreases from the starting surface 601 to the limiting surface 602. Referring to the specific direction of fig. 7, the dimension of the mounting groove 103 in the up-down direction is the height of the mounting groove 103, the right side surface of the mounting seat 101 is the starting surface 601, the left end of the mounting groove 103 is avoided to be the limiting surface 602 (the limiting surface 602 is not specifically shown in fig. 7), and the height of the mounting groove 103 gradually decreases from right to left.

That is, the height of the mounting groove 103 gradually decreases in the direction in which the FPC102 slides into the mounting groove 103. In this arrangement, the mounting groove 103 is higher near the first through opening 301, which facilitates the entry of the FPC102 into the mounting groove 103; meanwhile, when the FPC102 just enters the mounting groove 103, the upper side wall surface and the lower side wall surface of the mounting groove 103 have large gaps with the FPC102, and resistance to the movement of the FPC102 is small, so that the FPC102 can be moved quickly. When the FPC102 moves to the vicinity of the stopper surface 602, the height of the mounting groove 103 where the FPC102 is located becomes relatively small, and the upper side wall surface and the lower side wall surface of the mounting groove 103 clamp the FPC102, thereby fixing the position of the end of the FPC 102.

Referring to fig. 8 to 11, the present invention also provides an earphone charging box 801, and the earphone charging box 801 includes the FPC fixing structure in the above-described embodiment. The FPC102 of the headphone charging box 801 is highly convenient to mount and the headphone charging box 801 is highly convenient to assemble.

Specifically, referring to fig. 8 to 11, the earphone charging box 801 further includes an upper cover 802, a box body 803, a main board 902, and a battery 1103, wherein the box body 803 has a mounting cavity 901 inside, the battery 1103, the main board 902, the FPC102, and the mounting seat 101 are all disposed in the mounting cavity 901, and the upper cover 802 is rotatably connected to the box body 803. Referring to fig. 9 and 10, mount 101 is connected to box 803 and to the wall of mount 901.

The mounting base 101 may be snapped to the cassette 803. Referring to fig. 1 and 10, the mounting base 101 has a clamping hole 106, the box body 803 has a clamping body 905, and the clamping body 905 can be clamped into the clamping hole 106, so that clamping between the mounting base 101 and the box body 803 is realized. Further, mounting base 101 may be bonded to case 803, or mounting base 101 may be injection molded integrally with case 803. Here, the connection between the mounting base 101 and the box 803 is not always illustrated.

The battery 1103 and the main board 902 are electrically connected by a wire, and the FPC102 is also electrically connected to the main board 902. The main board 902 has a first connector 904 and a second connector 903, the first connector 904 may be configured as a pogo pin, and the second connector 903 may be configured as a type-c interface (a specific structure is not shown in fig. 9); of course, the form of the first connector 904 and the second connector 903 is not limited to the above form, and may be modified to other connectors that can be used to realize electrical connection. The earphone charging box 801 further comprises a middle cover 1101, the middle cover 1101 is connected with the box body 803, the middle cover 1101 is provided with two accommodating cavities 1102 for accommodating earphones, and the first connector 904 penetrates through the middle cover 1101 and penetrates into the accommodating cavities 1102. The first connector 904 is used to contact the headset to allow the battery 1103 to charge the headset; the second connector 903 is used for plugging with an external cable so that the external power supply charges the battery 1103. The circuit structure of the main board 902 for implementing the charging function is well known in the art and will not be described in detail herein.

As described above, in some embodiments, the end of the FPC102 disposed in the mounting groove 103 may have a hall switch, and accordingly the upper cover 802 of the earphone charging box 801 may be connected with a magnet; the main board 902 may receive signals of hall switches on the FPC102, so as to determine whether the earphone charging box 801 is opened according to the signals of the hall switches, thereby performing corresponding actions. For example, if it is detected that the headphone charging box 801 is opened, an indicator lamp (the indicator lamp is not specifically shown) of the headphone charging box 801 is turned on.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (9)

1. FPC fixed knot constructs, its characterized in that includes:

   FPC；

   the mount pad has the mounting groove, one of them one end of FPC set up in the mounting groove, the wall of mounting groove is followed FPC's common centre gripping of thickness direction FPC.
2. 2. The FPC fixing structure according to claim 1, wherein the mounting groove has a first through hole and a second through hole that are communicated with each other, the first through hole and the second through hole are disposed on an outer surface of the mounting seat and located on two adjacent sides of the mounting seat respectively, the FPC is disposed through the second through hole, and the first through hole is capable of allowing the FPC to pass through.
3. 3. The FPC fixing structure according to claim 2, wherein the mounting base further has a positioning groove that communicates with the mounting groove, the positioning groove having a positioning inlet that is disposed on a same side of the mounting base as the first penetration hole and communicates with each other;

   the FPC comprises a substrate and a positioning body, wherein the substrate is flexible, the positioning body protrudes relative to the surface of the substrate, the positioning inlet can be penetrated by the positioning body, the positioning body is accommodated in the positioning groove, and the substrate is accommodated in the mounting groove.
4. 4. The FPC fixing structure according to claim 2, wherein the FPC is inserted into the second insertion hole, a side surface of the mounting seat where the first insertion hole is disposed is a start surface, a wall surface of the mounting groove at an end away from the first insertion hole is a limiting surface, and a height of the mounting groove gradually decreases from the start surface to the limiting surface.
5. 5. The FPC fixing structure according to claim 1, wherein the mounting groove has a through opening, the through opening is disposed on an outer surface of the mounting seat, and the FPC is disposed through the through opening.
6. 6. The FPC fixing structure according to claim 5, wherein the mounting base further has a positioning groove, the positioning groove communicates with the mounting groove, the positioning groove has a positioning inlet, and the positioning inlet and the penetrating port are disposed on the same side of the mounting base and communicate with each other;

   the FPC comprises a substrate and a positioning body, the substrate is flexible, the positioning body protrudes relative to the substrate, the positioning inlet can be penetrated by the positioning body, the positioning body is contained in the positioning groove, and the substrate is contained in the mounting groove.
7. 7. The FPC fixing structure according to claim 5, wherein a side surface of the mounting seat where the through hole is disposed is a start surface, a wall surface of one end of the mounting groove far away from the through hole is a limiting surface, and a height of the mounting groove gradually decreases from the start surface to the limiting surface.
8. 8. The FPC fixing structure according to any one of claims 2 to 7, wherein the FPC includes a base plate having flexibility and a stiffener attached to an end of the base plate located in the mounting groove, and at least a portion of the stiffener is located in the mounting groove.
9. 9. An earphone charging box, characterized by comprising the FPC fixing structure as claimed in any one of claims 1 to 8.

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