CN220421857U - Middle frame and electronic equipment - Google Patents

Abstract

The utility model discloses a middle frame and electronic equipment, wherein the middle frame comprises a conductive body, an insulating part, a key elastic piece and a signal wire, the conductive body is provided with a main board installation position, a connecting part for being electrically connected with the main board is arranged at the main board installation position, the insulating part is connected with the conductive body, the key elastic piece is connected with the insulating part, the key elastic piece is provided with an initial position which is spaced apart from the conductive body and a pressing position which is abutted with the conductive body, the signal wire penetrates through the insulating part and is spaced apart from the conductive body, a first end of the signal wire is electrically connected with the key elastic piece, and a second end of the signal wire is adjacent to the main board installation position and is used for being electrically connected with the main board. The middle frame provided by the utility model has the advantages that the side keys can realize the key function, FPC design and installation procedures are saved, and the manufacturing cost of the electronic equipment is low.

Description

Middle frame and electronic equipment

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to a middle frame and electronic equipment.

Background

The side keys of the mobile phone generally have a start key and an audio key, and in the related art, an FPC (flexible circuit board) with a button shrapnel is usually arranged on the mobile phone to connect with a signal shrapnel of the main board. The key spring plate corresponds to the side key, and when the side key is pressed to enable the key spring plate to be in contact with a ground signal, the side key signal generates a terminal signal to be recognized by the main board so as to realize a key function.

However, the thickness and stacking condition of the mobile phone are limited, the width and thickness space of the FPC are very limited, and the FPC is easy to damage in the production process, so that reworking is caused; meanwhile, after the FPC is installed, the FPC is required to be clung to the middle frame, and the installation is difficult; in addition, the design of FPC also causes the cost of manufacture of cell-phone high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides a middle frame which has the advantages that the side keys can realize the key functions, FPC design and installation procedures are saved, and the manufacturing cost of electronic equipment is low.

The embodiment of the utility model also provides electronic equipment.

The middle frame comprises a conductive body, an insulating piece, a key spring piece and a signal wire, wherein the conductive body is provided with a main board installation position, and a connecting part for electrically connecting with the main board is arranged at the main board installation position; the insulating piece is connected with the conductive body, the key elastic piece is connected with the insulating piece, and the key elastic piece is provided with an initial position which is spaced apart from the conductive body and a pressing position which is abutted with the conductive body; the signal wire penetrates through the insulating piece and is spaced from the conductive body, a first end of the signal wire is electrically connected with the key spring plate, and a second end of the signal wire is adjacent to the main board and is used for being electrically connected with the main board.

According to the middle frame provided by the embodiment of the utility model, the conductive body is electrically connected with the main board through the connecting part arranged at the main board installation position so as to realize the grounding of the main board. The key elastic sheet is connected with the insulating piece and is electrically connected with the main board through the signal wire, when the key elastic sheet is pressed to the pressing position, the key elastic sheet is abutted with the conductive body, namely, the key elastic sheet is grounded, and at the moment, the key elastic sheet generates an interrupt signal and is transmitted to the main board through the signal wire for identification so as to realize the key function. The setting can realize the key function of the side key of the electronic equipment without redesigning the FPC, and the subsequent FPC mounting procedure is omitted, so that the manufacturing cost of the electronic equipment is low.

In some embodiments, the insulator is injection molded onto the conductive body and/or at least a portion of the signal line is pre-embedded on the insulator.

In some embodiments, at least a portion of the key spring is pre-embedded on the insulating member, and/or the key spring is detachably connected to the insulating member through a locking member.

In some embodiments, the key elastic sheet is provided with a first mounting hole, the insulating member is provided with a second mounting hole, and the middle frame further comprises a threaded member, and the threaded member passes through the first mounting hole and is in threaded fit with the second mounting hole.

In some embodiments, the insulating member is provided with a receiving hole, the signal wire is fitted in the receiving hole, and the first end and the second end of the signal wire are exposed to the outer surface of the insulating member.

In some embodiments, the conductive body includes a frame and a middle plate disposed in the frame, the main board is mounted on the middle plate, and at least part of the key spring is disposed on an outer peripheral side of the frame.

In some embodiments, a first accommodating groove is formed in one side of the middle plate, where the main board mounting position is formed, a second accommodating groove communicated with the first accommodating groove is formed in the frame, and the insulating piece is matched in the first accommodating groove and the second accommodating groove.

In some embodiments, an installation groove communicated with the second accommodating groove is formed in the outer peripheral surface of the frame, at least part of the key elastic sheet is matched in the installation groove, and the first end of the signal wire is located in the installation groove and is electrically connected with the key elastic sheet.

In some embodiments, the outer surface of the insulating member is in smooth engagement with the side of the intermediate plate on which the motherboard mounting location is provided, and the second end of the signal wire is exposed from the outer surface of the insulating member.

In some embodiments, the key spring pieces include at least one of a volume key and a start key, and the signal lines are equal in number and in one-to-one correspondence with the key spring pieces.

An electronic device according to an embodiment of the present utility model includes a middle frame as described in any of the above embodiments.

The technical advantages of the electronic device according to the embodiment of the present utility model are the same as those of the middle frame of the above embodiment, and will not be described here again.

Drawings

Fig. 1 is a schematic diagram of a middle frame according to an embodiment of the present utility model.

Fig. 2 is an enlarged view of a in fig. 1.

Fig. 3 is a sectional view B-B of fig. 1.

Reference numerals:

100. a middle frame; 1. a conductive body; 11. a frame; 111. a second accommodating groove; 112. a mounting groove; 12. an intermediate plate; 121. a first accommodating groove; 122. a main board installation position; 2. an insulating member; 21. an accommodation hole; 3. a key spring plate; 4. and a signal line.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A center 100 according to an embodiment of the present utility model is described below in conjunction with fig. 1-3.

The middle frame 100 according to the embodiment of the utility model comprises a conductive body 1, an insulating member 2, a key spring 3 and a signal wire 4. The conductive body 1 has a motherboard mounting location 122, and a connection portion for electrically connecting with the motherboard is provided at the motherboard mounting location 122. The insulating piece 2 is connected with the conductive body 1, the key elastic piece 3 is connected with the insulating piece 2, and the key elastic piece 3 is provided with an initial position which is spaced apart from the conductive body 1 and a pressing position which is abutted with the conductive body 1. The signal wire 4 penetrates through the insulating piece 2 and is spaced from the conductive body 1, a first end of the signal wire 4 is electrically connected with the key spring plate 3, and a second end of the signal wire 4 is adjacent to the main board mounting position 122 and is used for being electrically connected with the main board.

According to the middle frame 100 of the embodiment of the utility model, the conductive body 1 is electrically connected with the motherboard through a connection portion arranged at the motherboard mounting location 122, so as to realize grounding of the motherboard. The button shrapnel 3 links to each other with insulating part 2 to be connected with the mainboard electricity through signal line 4, when pressing button shrapnel 3 to the position of pressing, button shrapnel 3 and electrically conductive body 1 butt, button shrapnel 3 ground connection promptly, button shrapnel 3 produced an interrupt signal and passed to the mainboard through signal line 4 and discerned this moment, in order to realize the button function. The setting can realize the key function of the side key of the electronic equipment without redesigning the FPC, and the subsequent FPC mounting procedure is omitted, so that the manufacturing cost of the electronic equipment is low.

It should be noted that, the connection portion is a copper leakage that is not provided with a solder resist on the conductive body 1, the conductive body 1 is electrically connected with the grounding spring plate on the motherboard through the copper leakage, the motherboard does not need to be additionally provided with a grounding design, at this time, each key spring plate 3 is integrated on the middle frame 100, and the motherboard can save one grounding spring plate.

In some embodiments, the insulator 2 is injection molded onto the conductive body 1 and/or at least a portion of the signal wire 4 is pre-embedded on the insulator 2.

Therefore, the insulating piece 2 and/or the signal wire 4 are/is integrated on the conductive body 1 to a higher degree, the middle frame 100 is not easy to damage in the production process, the consistency is good, and the reliability of the electric connection between the key spring plate 3 and the body is high. This design also effectively ensures the structural strength of the center 100 itself.

In this embodiment, the insulating member 2 is a plastic member, the insulating member 2 is injection molded on the conductive body 1, and at least a portion of the signal line 4 is embedded on the insulating member 2 when the insulating member 2 is injection molded.

In some embodiments, as shown in fig. 2, at least part of the key spring 3 is pre-embedded on the insulating member 2, where the key spring 3 is connected to the first end of the signal wire 4 in advance, such as by welding, and then the key spring 3 and the signal wire 4 are pre-embedded on the insulating member 2 when the insulating member 2 is injection molded, so that the connection between the key spring 3 and the signal wire 4 and the insulating member 2 is convenient and reliable.

And/or the button shrapnel 3 is detachably connected with the insulating piece 2 through a locking piece. After the locking piece realizes connection between the key elastic piece 3 and the insulating piece 2, the part, clamped between the insulating piece 2 and the locking piece, of the key elastic piece 3 is pressed, clamped or welded at the first end of the signal wire 4, so that the key elastic piece 3 is electrically connected with the signal wire 4. The detachable design of the button shrapnel 3 facilitates the disassembly, assembly and replacement of the button shrapnel 3.

In some embodiments, the key spring 3 is provided with a first mounting hole, the insulating member 2 is provided with a second mounting hole, and the middle frame 100 further includes a threaded member, and the threaded member passes through the first mounting hole and is in threaded engagement with the second mounting hole.

The second mounting hole is a unthreaded hole, the screw piece is a screw, and the screw passes the first mounting hole and links to each other with the second mounting hole screw thread, realizes linking to each other of button shell fragment 3 and insulating part 2 from this, and the easy dismounting of button shell fragment 3 installs reliably.

In some embodiments, as shown in fig. 2, the insulating member 2 is provided with a receiving hole 21, the signal wire 4 is fitted in the receiving hole 21, and the first end and the second end of the signal wire 4 are exposed to the outer surface of the insulating member 2.

I.e. the signal wire 4 is substantially hidden inside the insulating member 2, thereby effectively avoiding that other parts of the signal wire 4 except the first end and the second end are in erroneous contact with other metal parts in the electronic device to affect the key-press function of the side key.

Specifically, the signal wire 4 and the insulating member 2 are integrally injection molded, that is, the insulating member 2 tightly wraps the signal wire 4, so that the signal wire 4 is effectively prevented from rotating and moving in the accommodating hole 21 by mistake, the first end and the second end of the signal wire 4 are both exposed out of the insulating member 2, and the first end/the second end of the signal wire 4 and the key spring plate 3/the main board are conveniently and reliably connected.

In some embodiments, as shown in fig. 1 and 2, the conductive body 1 includes a frame 11 and an intermediate plate 12 disposed in the frame 11, the main board mounting location 122 is formed on the intermediate plate 12, and at least part of the key spring 3 is disposed on the peripheral side of the frame 11.

The mainboard is installed and is located the frame 11 inboard behind mainboard installation position 122, and at least part of button shell fragment 3 is located the periphery side of frame 11 to button shell fragment 3 matches with electronic equipment's side key, through pressing the side key, can drive button shell fragment 3 towards pressing the position removal, in order to realize the button function of side key.

Specifically, the different sides of the insulating member 2 are respectively connected with the main board mounting position 122 and the position of the frame 11, where the key spring plate 3 is arranged, the insulating member 2 is only used for spacing the signal line 4 connecting the key spring plate 3 and the main board from the conductive body 1, and the area of the insulating member 2 is not required to be excessively large, so that the structural strength of the middle frame 100 is further ensured.

In some embodiments, as shown in fig. 2 and 3, a first accommodating groove 121 is formed on a side of the middle plate 12 where the main board mounting position 122 is formed, a second accommodating groove 111 communicating with the first accommodating groove 121 is formed on the frame 11, and the insulating member 2 is fitted in the first accommodating groove 121 and the second accommodating groove 111.

The fitting of the insulating member 2 with the first receiving groove 121 and the second receiving groove 111 further improves the connection strength of the insulating member 2 with the conductive body 1.

Specifically, the insulating member 2 is an insulating plate, the overall dimension of the middle frame 100 formed by integrally forming the insulating member 2 and the conductive body 1 is substantially the same as that of the middle frame in the related art, that is, the size of the middle frame 100 cannot be increased due to the arrangement of the insulating member 2, so that the problem of mounting other parts of the electronic device on the middle frame 100 is effectively avoided.

In some embodiments, as shown in fig. 2, the outer peripheral surface of the frame 11 is provided with a mounting groove 112 in communication with the second accommodating groove 111, at least part of the key elastic sheet 3 is fitted in the mounting groove 112, and the first end of the signal wire 4 is located in the mounting groove 112 and is electrically connected with the key elastic sheet 3.

Therefore, after the middle frame 100 is manufactured and molded, the part of the button shrapnel 3 connected with the signal wire 4 and the insulating piece 2 is hidden in the mounting groove 112, so that the influence of external interference on the connection reliability of the button shrapnel 3 with the signal wire 4 and the insulating piece 2 is effectively avoided.

In some embodiments, the outer surface of the insulating member 2 is in smooth engagement with the side of the intermediate plate 12 on which the motherboard-mounting locations 122 are provided, and the second ends of the signal wires 4 are exposed from the outer surface of the insulating member 2. Therefore, the connection strength of the insulating piece 2 and the middle plate 12 is further improved, the reliability of the position of the second end of the signal wire 4 exposed out of the outer surface of the insulating piece 2 on the conductive body 1 is higher, and the reliability of the electric connection of the signal wire 4 and the main board is higher.

In some embodiments, the key spring 3 includes at least one of a volume key and a start key, and the signal lines 4 are equal to and in one-to-one correspondence with the number of key spring 3.

Specifically, there are three key spring pieces 3, two key spring pieces 3 in the three key spring pieces 3 correspond to two volume keys, and one key spring piece 3 corresponds to a start key.

An electronic device according to an embodiment of the present utility model includes a middle frame 100 according to any of the embodiments described above.

Technical advantages of the electronic device according to the embodiment of the present utility model are the same as those of the middle frame 100 of the above embodiment, and will not be described here again.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean 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 utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (11)

1. A center, comprising:

the conductive body is provided with a main board installation position, and a connecting part for electrically connecting with the main board is arranged at the main board installation position;

the electric conduction device comprises an insulating piece and a key elastic piece, wherein the insulating piece is connected with a conductive body, the key elastic piece is connected with the insulating piece, and the key elastic piece is provided with an initial position which is spaced apart from the conductive body and a pressing position which is abutted against the conductive body; and

the signal wire penetrates through the insulating piece and is spaced from the conductive body, a first end of the signal wire is electrically connected with the key elastic sheet, and a second end of the signal wire is adjacent to the main board mounting position and is used for being electrically connected with the main board.

2. The center of claim 1, wherein the insulator is injection molded onto the conductive body and/or wherein at least a portion of the signal wire is pre-embedded on the insulator.

3. The middle frame according to claim 1, wherein at least part of the key spring is pre-embedded on the insulating member, and/or the key spring is detachably connected with the insulating member through a locking member.

4. The middle frame according to claim 1, wherein the key spring plate is provided with a first mounting hole, the insulating member is provided with a second mounting hole, and the middle frame further comprises a threaded member, and the threaded member passes through the first mounting hole and is in threaded fit with the second mounting hole.

5. The center of claim 2, wherein the insulator has a receiving hole, the signal wire is fitted in the receiving hole, and both the first and second ends of the signal wire are exposed to an outer surface of the insulator.

6. The middle frame according to any one of claims 1 to 5, wherein the conductive body comprises a frame and a middle plate arranged in the frame, the main plate is formed on the middle plate, and at least part of the key spring plate is arranged on the outer periphery side of the frame.

7. The middle frame according to claim 6, wherein a first accommodating groove is formed in one side of the middle plate, where the main board mounting position is formed, a second accommodating groove communicated with the first accommodating groove is formed in the frame, and the insulating piece is matched in the first accommodating groove and the second accommodating groove.

8. The middle frame according to claim 7, wherein an installation groove communicated with the second accommodating groove is formed in the outer peripheral surface of the frame, at least part of the button shrapnel is matched in the installation groove, and the first end of the signal wire is located in the installation groove and is electrically connected with the button shrapnel.

9. The center of claim 6, wherein the outer surface of the insulator is in smooth engagement with the side of the intermediate plate on which the motherboard-mounting locations are located, and the second ends of the signal wires are exposed from the outer surface of the insulator.

10. The middle frame of claim 1, wherein the key spring pieces comprise at least one of volume keys and start keys, and the signal lines are equal in number and in one-to-one correspondence with the key spring pieces.

11. An electronic device comprising a center as claimed in any one of claims 1-10.