CN217883503U - Middle frame part and terminal equipment - Google Patents

Abstract

The utility model discloses a center part and terminal equipment. The middle frame part comprises a middle frame, a circuit board assembly and a sealing piece. The center is equipped with the through-hole that holds the chamber and run through the lateral wall that holds the chamber, holds the chamber and is equipped with the opening and the pressure-bearing surface that sets up relatively with the opening. The circuit board assembly comprises a flexible circuit board, wherein part of the flexible circuit board is arranged on the pressure bearing surface, and part of the flexible circuit board penetrates through the through hole and is arranged outside the middle frame. At least part of the sealing element is fixedly arranged in the accommodating cavity to form a protection space which is not communicated with the opening, and part of the flexible circuit board is sealed in the protection space. The middle frame component can reliably protect the flexible circuit board, improves the sealing effect of the flexible circuit board on the middle frame, and is favorable for improving the durability of the terminal equipment.

Description

Middle frame part and terminal equipment

Technical Field

The present disclosure relates to the field of electronic technologies, and in particular, to a middle frame component and a terminal device.

Background

Terminal devices such as mobile phones, tablet computers and smart watches have become essential scientific and technological products in the life, study and entertainment processes of people. Along with the development of terminal equipment, terminal equipment integrates more and more highly, and in order to adapt to miniaturized development simultaneously, the utilization requirement to the internal space is higher and more compact between the inside electronic components of terminal equipment.

In the related art, the foldable terminal device needs to use a flexible circuit board to connect electronic components at different positions. However, the conventional sealing method is difficult to reliably seal the flexible circuit board on the middle frame, and the terminal equipment is easily damaged due to poor sealing effect.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a middle frame component and a terminal device. The middle frame component can reliably protect the flexible circuit board, improves the sealing effect of the flexible circuit board on the middle frame, and is favorable for improving the durability of the terminal equipment.

The technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, there is provided a middle frame component including a middle frame, a wiring board assembly, and a seal. The center is equipped with the through-hole that holds the chamber and run through the lateral wall that holds the chamber, holds the chamber and is equipped with the opening and the pressure-bearing surface that sets up relatively with the opening. The circuit board assembly comprises a flexible circuit board, wherein part of the flexible circuit board is arranged on the pressure bearing face, and part of the flexible circuit board penetrates through the through hole and is arranged outside the middle frame. At least part of the sealing element is fixedly arranged in the accommodating cavity to form a protection space which is not communicated with the opening, and part of the flexible circuit board is sealed in the protection space.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

when the middle frame component is applied to terminal equipment, part of the flexible circuit board is arranged on the bearing surface, and part of the flexible circuit board can penetrate through the through hole to be connected with other electronic devices. Because the part of flexible line way board sets up in holding the intracavity, be convenient for protect. And the sealing element is fixed on the middle frame to form a protection space, so that the flexible circuit board arranged on the bearing surface is not influenced by bending stress, the protection space can be utilized for water and dust prevention, and the sealing performance of the flexible circuit board is improved. In addition, the flexible circuit board is arranged in the middle frame through the accommodating cavity, the flexible circuit board can be accommodated in the thickness space of the middle frame by fully utilizing the thickness space of the middle frame, so that the electronic devices in the terminal equipment are compactly arranged, and the miniaturization development of the terminal equipment is facilitated.

The technical scheme of the present disclosure is further explained as follows:

in one embodiment, the accommodating cavity comprises a first inner side wall and a second inner side wall which are oppositely arranged along the width direction of the accommodating cavity, the sealing element is arranged to cover the pressure bearing surface on the cross section of the accommodating cavity in the width direction, and the sealing element is in press fit with the first inner side wall and the second inner side wall.

In one embodiment, at least one of the first inner sidewall and the second inner sidewall is provided with a sealing groove, and part of the sealing element is embedded in the sealing groove.

In one embodiment, the circuit board assembly further comprises an electrical connector disposed on the flexible circuit board, the electrical connector being disposed toward the opening. The electric connector comprises an electric connection part protruding out of the flexible circuit board, the sealing element is provided with a first avoiding hole avoiding the electric connection part, and the sealing element is in sealing fit with the flexible circuit board so that the first avoiding hole is not communicated with the protection space.

In one embodiment, the sealing member comprises at least one annular convex body, and the annular convex body is in press fit with the side wall of the accommodating cavity; and/or one of the sealing element and the side wall of the accommodating cavity is provided with an annular groove, and the other one of the sealing element and the side wall of the accommodating cavity is provided with an annular convex body which is in sealing fit with the annular groove.

In one embodiment, a first adhesive layer is arranged between the sealing element and the flexible circuit board, and the sealing element is fixedly adhered to the flexible circuit board through the first adhesive layer.

In one embodiment, the circuit board assembly further comprises a supporting plate fixedly connected with the flexible circuit board, and the supporting plate is arranged on the pressure bearing face.

In one embodiment, the flexible circuit board is welded and fixed with the supporting plate, and the electric connector is welded and fixed with the flexible circuit board; and/or a second adhesive layer is arranged between the support plate and the pressure bearing face.

In one embodiment, the seal includes a reinforcing layer and a resilient layer disposed about the reinforcing layer.

According to a second aspect of the embodiments of the present disclosure, there is also provided a terminal device, including the middle frame component in any of the embodiments.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the terminal device adopts the middle frame part in any one of the embodiments, has good durability, and can meet the requirement of miniaturization and manufacture.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

Brief description of the drawingsthe accompanying drawings, which form a part of the disclosure, are included to provide a further understanding of the disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the disclosure and not to limit the disclosure.

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a terminal device shown in an embodiment.

Fig. 2 is a partial structural view of the middle frame member shown in fig. 1.

Fig. 3 is a schematic cross-sectional view of the middle frame part shown in fig. 2 in a first cross-sectional direction.

Fig. 4 is a schematic cross-sectional view of the circuit board assembly shown in fig. 3.

Fig. 5 is a schematic diagram of a hardware configuration of the terminal device shown in fig. 1.

Description of reference numerals:

10. a terminal device; 11. a processing component; 12. a memory; 13. a power supply component; 14. a multimedia component; 15. an audio component; 16. an input/output interface; 17. a sensor assembly; 18. a communication component; 100. a middle frame member; 110. a middle frame; 111. an accommodating chamber; 101. an opening; 102. a pressure bearing face; 103. protecting the space; 104. a first inner side wall; 105. a second inner side wall; 106. an annular groove; 112. a through hole; 120. a circuit board assembly; 121. a flexible circuit board; 122. an electrical connector; 1201. an electrical connection portion; 123. a support plate; 124. a second adhesive layer; 130. a seal member; 131. connecting holes; 132. a first avoidance hole; 133. an annular convex body; 134. a strengthening layer; 135. an elastic layer; 140. a first adhesive layer; 200. a control main board; 300. a flexible display screen.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more clearly understood, the following detailed description of the present disclosure is made with reference to the accompanying drawings and the detailed description of the present disclosure. It should be understood that the detailed description and specific examples, while indicating the scope of the disclosure, are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein in the description of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Terminal devices such as mobile phones and tablet computers have become essential scientific and technological products in the life, study and entertainment processes of people, and bring a great deal of convenience and fun to the life of people. Along with the development of the diversification of the functions of the terminal equipment, the variety of the terminal equipment is various, the brands are various, so that a plurality of terminal equipment can be selected by consumers, the requirements of people on the terminal equipment cannot be met only by improving the functional characteristics of the terminal equipment, and the aesthetic property of the shell structure of the terminal equipment also becomes an important factor influencing the competitiveness of electronic products. Among terminal devices with similar functions or performances, the more beautiful the appearance of the terminal device is, the more attractive the terminal device is to be purchased by consumers.

As the flexible display screen is more mature, the application of the flexible display screen on the terminal device is more extensive. And the terminal equipment who has used flexible display screen, its shell has more aesthetic property on the whole, also can bring better display experience, receives more and more consumer's favor. In addition, some terminal devices utilize a folding mechanism to realize folding and unfolding of the flexible display screen. Therefore, the flexible display screen can be folded in half to be convenient to carry; and the flexible display screen has a larger display area after being unfolded, and is more and more favored by consumers, so that the terminal equipment can be folded into a trend.

In the related art, in order to adapt to the miniaturization development, electronic devices inside the terminal equipment are more and more compact, and the utilization requirement of the internal space is more and more high. The foldable terminal equipment needs to utilize a flexible circuit board to realize the connection of electronic devices at different positions. However, the flexible circuit board has bending stress, the flexible circuit board is difficult to be reliably sealed on the middle frame by the traditional sealing mode, and the damage of terminal equipment is easily caused due to poor sealing effect.

Based on this, the present disclosure provides a middle frame component, which can make full use of the thickness space of the middle frame to accommodate the flexible circuit board, and protect the flexible circuit board reliably, thereby improving the sealing effect of the flexible circuit board in the middle frame, and being beneficial to improving the durability of the terminal device.

For a better understanding of the middle frame part of the present disclosure, the following description is made in conjunction with a terminal device to which the above middle frame part is applied.

As shown in fig. 1 to 4, a terminal device and a flexible display thereof in one embodiment are shown in structural views. Fig. 1 is a schematic structural diagram of a terminal device shown in an embodiment. Fig. 2 is a partial structural view of the middle frame member shown in fig. 1. Fig. 3 is a schematic cross-sectional view of the middle frame part shown in fig. 2 in a first cutting direction. Fig. 4 is a schematic cross-sectional view of the circuit board assembly shown in fig. 3.

As shown in fig. 1 and 2, in an embodiment of the present disclosure, a terminal device 10 is provided, which includes a middle frame part 100.

As shown in fig. 2 and 3, the middle frame member 100 includes a middle frame 110, a circuit board assembly 120, and a sealing member 130. The middle frame 110 is provided with a receiving cavity 111 and a through hole 112 penetrating through a sidewall of the receiving cavity 111, and the receiving cavity 111 is provided with an opening 101 and a pressure bearing surface 102 disposed opposite to the opening 101. The circuit board assembly 120 includes a flexible circuit board 121, a portion of the flexible circuit board 121 is disposed on the pressure bearing surface 102, and a portion of the flexible circuit board 121 passes through the through hole 112 and is disposed outside the middle frame 110. The sealing member 130 is at least partially fixed in the accommodating cavity 111 to form a protection space 103 not communicated with the opening 101, and a portion of the flexible circuit board 121 is sealed in the protection space 103.

In this way, when the middle frame member 100 is applied to the terminal device 10, the portion of the flexible printed circuit 121 is disposed on the pressure bearing surface 102, and the portion of the flexible printed circuit 121 can be connected to other electronic devices through the through hole 112. Since part of the flexible wiring board 121 is disposed in the accommodation chamber 111, shielding is facilitated. The sealing member 130 is fixed to the middle frame 110 to form the protection space 103, so that the flexible circuit board 121 disposed on the pressure-bearing surface 102 is not affected by bending stress, and the protection space 103 can be used for water and dust prevention, thereby improving the sealing effect of the flexible circuit board 121 on the middle frame 110, and facilitating the improvement of the durability of the terminal device 10. In addition, the flexible circuit board 121 is partially disposed in the middle frame 110 through the accommodating cavity 111, so that the flexible circuit board 121 can be accommodated by fully utilizing the thickness space of the middle frame 110, the arrangement of electronic devices inside the terminal device 10 is compact, and the miniaturization development of the terminal device 10 is facilitated.

The terminal device 10, which employs the middle frame member 100 of any of the above embodiments, has good durability and can meet the requirements of miniaturization and manufacturing.

The terminal 10 may include a handheld device, a vehicle-mounted device, a wearable device, a monitoring device, a cellular phone (cellular phone), a smart phone (smart phone), a Personal Digital Assistant (PDA) computer, a tablet computer, a portable computer, a laptop computer (laptop computer), a video camera, a video recorder, a camera, a smart watch (smart watch), a smart bracelet (smart bracelet), a vehicle-mounted computer, and other terminal 10 having an imaging function.

As shown in fig. 1, in some embodiments, a control motherboard 200 and a display screen, the display screen is electrically connected to the control motherboard 200 through a flexible circuit board 121. Therefore, the portion of the flexible printed circuit 121 disposed on the middle frame 110 can be connected to the display screen, the portion disposed outside the middle frame 110 can be connected to the control motherboard 200, and the flexible printed circuit 121 is reliably fixed on the middle frame 110 and cannot easily move, so that the flexible printed circuit 121 is reliably connected to the display screen, and the reliability of the terminal device 10 is improved.

Further, in some embodiments, the terminal device 10 further includes a light-transmissive cover plate (not labeled) and a rear cover (not labeled). The light transmissive cover plate is sealingly engaged with the front surface of the center frame 110 to form a first sealed space (not shown) for accommodating the display screen. The rear cover and the light-transmitting cover plate are arranged oppositely and are in sealing fit with the back face of the middle frame 110 to form a second sealing space (not shown) for accommodating the control main board 200, the first sealing space is communicated with the second sealing space through the through hole 112, so that one end of the flexible circuit board 121 is connected with the display screen, and the other end of the flexible circuit board passes through the through hole 112 to be connected with the control main board 200. Therefore, the sealing performance of the terminal equipment 10 can be improved, and the risk of dust and liquid entering is reduced or reduced.

In addition, in combination with the aforementioned shield space 103, the flexible wiring board 121 can be reliably sealed inside the terminal device 10, and the waterproof rating of the terminal device 10 can be improved.

It should be noted that the control motherboard includes a main control chip, the main control chip includes a Processor, the Processor may be a Micro-control Unit (MCU), a Central Processing Unit (CPU), or a Digital Signal Processor (DSP), and the like, and in addition, the control motherboard further includes a communication Unit, which is used for communicating with other modules of the terminal device, such as the display screen of the present disclosure.

It should be noted that, the specific implementation manner of the fixed connection between the sealing element and the middle frame may be various, including but not limited to, snap fastening, screw fastening, and the like.

In some embodiments, the seal is snap-fit to the center frame. So, the sealing member can be installed in the well accuse fast, easy to carry out, and the equipment is convenient.

It should be noted that the specific implementation manner of the snap-fit connection between the sealing element and the middle frame may be various, including a snap-fit type fit, an elastic hook fit, a press-type snap fit, a splice-type snap fit, and the like.

Optionally, as shown in fig. 2, in some embodiments, the connecting body is provided with a connecting hole 131. In this manner, the connection hole 131 facilitates the fastening of other functional devices (e.g., a folding mechanism) to the middle frame 110 by a fastener. While the sealing member 130 is firmly fixed to the middle frame 110.

As shown in fig. 3, in some embodiments, the receiving cavity 111 includes a first inner sidewall 104 and a second inner sidewall 105 that are oppositely disposed in a width direction thereof, and the sealing member 130 is disposed to cover the pressure bearing surface 102 in a cross section of the receiving cavity 111 in the width direction, and the sealing member 130 is press-fitted with the first inner sidewall 104 and the second inner sidewall 105. In this manner, the sealing member 130 may cover the pressure bearing surface 102 and press-fit with the first inner sidewall 104 and the second inner sidewall 105, and may reliably seal the receiving cavity 111.

As shown in fig. 3, in some embodiments, at least one of the first inner sidewall 104 and the second inner sidewall 105 is provided with an annular groove 106, and a portion of the elastic layer 135 is embedded in the annular groove 106. Thus, by the annular groove 106 being in sealing engagement with the seal 130, the contact area between the seal 130 and the inner side wall of the first groove can be further increased, and the sealing performance can be further improved.

As shown in fig. 2 to 4, in some embodiments, the circuit board assembly 120 further includes an electrical connector 122 disposed on the flexible circuit board 121, and the electrical connector 122 is disposed toward the opening 101. So, utilize electric connector 122 to make things convenient for flexible line way board 121 and display screen or other electron device to dismantle the electricity and be connected, be convenient for carry out the modularization equipment, make things convenient for later maintenance. In addition, at least a part of the electrical connector 122 is also accommodated by the accommodating cavity 111, so that the thickness space of the middle frame 110 can be fully utilized, which is beneficial to the development of the terminal device 10 in light weight and thinness.

Further, as shown in fig. 3, in some embodiments, the electrical connector 122 includes an electrical connection portion 1201 provided to protrude from the flexible circuit board 121, and the sealing member 130 is provided with a first avoiding hole 132 avoiding the electrical connection portion 1201. The sealing member 130 is in sealing engagement with the flexible circuit board 121, so that the first avoiding hole 132 is not communicated with the protection space 103. In this way, by providing the first avoiding hole 132, the electrical connection portion 1201 can be electrically connected to other electronic devices (e.g., the flexible display 300) through the first avoiding hole 132, without interfering with the connection function of the electrical connector 122, and the flexible circuit board 121 can be firmly fixed. Meanwhile, by utilizing the sealing element 130 to be in sealing fit with the flexible printed circuit 121, dust or liquid can be prevented from entering the protective space 103 from the first avoiding hole 132, which causes short circuit or damage to the flexible printed circuit 121 and improves the sealing performance of the flexible printed circuit 121.

As shown in fig. 3, in some embodiments, the seal 130 includes at least one annular protrusion 133, and the annular protrusion 133 is press-fitted to the sidewall of the receiving cavity 111. Like this, utilize annular convex body 133 and the inside wall extrusion fit who holds chamber 111, can further increase sealing member 130 and the inside wall extrusion force that holds chamber 111, further improve sealing performance.

As shown in fig. 3, in some embodiments, the sealing member 130 and the sidewall of the accommodating chamber 111 are provided with an annular groove 106 on one side and an annular convex body 133 on the other side for sealing engagement with the annular groove 106. In this way, the annular convex body 133 is in sealing fit with the inner side wall of the annular groove 106, so that the contact area and the extrusion deformation between the sealing member 130 and the inner side wall of the accommodating cavity 111 can be further increased, and the sealing performance can be further improved.

On the basis of any embodiment of the sealing member 130, as shown in fig. 3, in some embodiments, a first adhesive layer 140 is disposed between the sealing member 130 and the flexible circuit board 121, and the sealing member 130 is adhered and fixed to the flexible circuit board 121 through the first adhesive layer 140, so that a portion of the flexible circuit board 121 is sealed in the protection space 103.

It should be noted that the specific implementation manner of the first adhesive layer 140 may be various, including but not limited to double-sided tape, silicone, back adhesive, and the like.

In combination with the aforementioned embodiments of the first avoiding hole 132, in some embodiments, the first adhesive layer 140 is a silicon gel. By utilizing the adhesive property and the waterproof property of the silica gel, the sealing property is further improved, so that the first avoiding hole 132 is not communicated with the protection space 103.

As shown in fig. 3 and 4, in some embodiments, the circuit board assembly 120 further includes a supporting plate 123, the supporting plate 123 is fixedly connected to the flexible circuit board 121, and the supporting plate 123 is disposed on the pressure-bearing surface 102. Therefore, the supporting plate 123 can increase the strength of the flexible circuit board 121, so that the flexible circuit board 121 is not easily deformed on the middle frame 110, and the fixation is more reliable.

It should be noted that the supporting board 123 can be fixedly connected to the flexible circuit board 121 by various means, including but not limited to, adhesive fixation, soldering fixation, and the like.

In some embodiments, the flexible circuit board 121 is fixed to the supporting board 123 by soldering, and the electrical connector 122 is fixed to the flexible circuit board 121 by soldering. Therefore, the supporting plate 123 is welded and fixed with the flexible circuit board 121, and then the electric connector 122 and the flexible circuit board 121 can be supported in the welding process, so that the electric connector 122 and the flexible circuit board 121 are welded more firmly, and the electric connection reliability of the electric connector 122 and the flexible circuit board 121 is ensured.

In any of the embodiments of the support plate 123 described above, as shown in fig. 3, in some embodiments, a second adhesive layer 124 is disposed between the support plate 123 and the pressure bearing face 102, and the support plate 123 is adhesively fixed to the pressure bearing face 102 by the second adhesive layer 124. In this way, the supporting plate 123 is fixed to the pressure-bearing surface 102 through the second adhesive layer 124, so that part of the flexible circuit board 121 is adhered to the pressure-bearing surface 102, and the supporting plate 123 has high strength, which is beneficial to maintaining the adhesion firmness, and can ensure that the flexible circuit board 121 is fixed firmly on the middle frame 110. In addition, since the supporting board 123 and the second adhesive layer 124 are also disposed in the accommodating cavity 111, the thickness space of the middle frame 110 is fully utilized, and the light and thin manufacturing of the terminal device 10 is not affected.

It should be noted that the specific implementation manner of the second adhesive layer 124 may be various, including but not limited to double-sided tape, silicone, back adhesive, and the like.

The material of the support plate 123 includes a metal material. For example, an aluminum alloy support plate 123, a support steel plate, and the like.

It should be noted that the sealing element 130 may be made of various materials, including but not limited to rubber, silicone, composite sealant, etc.

In some embodiments, the seal 130 is a flexible seal 130. So, when this terminal equipment 10 can be folded, the display screen is flexible display screen 300, and this sealing member 130 is fixed reliable with center 110 for the in-process that flexible display screen 300 buckled can not lead to flexible sealing member 130 to take place the skew, guarantees the sealed reliability of protection space 103, is favorable to improving the durability of folding terminal equipment 10.

Further, as shown in fig. 3, in some embodiments, the seal 130 includes a reinforcing layer 134 and a resilient layer 135 disposed about the reinforcing layer 134. So, wrap up reinforcing layer 134 through elastic layer 135 and form and connect inseparable compound flexible sealing element 130, improved sealing element 130's intensity for sealing element 130 is fixed firm, is difficult for receiving external force to influence, is favorable to improving the sealing performance of protection space 103.

In addition, the reinforcing layer 134 may be stamped from sheet metal and is easy to manufacture. Then, the secondary injection molding technology is utilized to realize the integral molding of the elastic layer 135 and the reinforcing layer 134, so that the assembly links are reduced, and the manufacturing cost of the sealing element 130 is reduced.

The material of the reinforcing layer 134 includes but is not limited to a bendable metal sheet, a flexible cloth, a bendable plastic sheet, etc.

The elastic layer 135 may be made of various materials, and may have a sealing function. Such as sealing rubber, sealing silicone, etc.

Referring to fig. 5, in some embodiments, terminal device 10 may also include one or more of the following components: processing components 11, memory 12, power supply components 13, multimedia components 14, audio components 15, interfaces for input/output 16, sensor components 17, and communication components 18.

The processing component typically controls overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations and recording operations. The processing components may include one or more processors 1020 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component can include one or more modules that facilitate interaction between the processing component and other components. For example, the processing component may include a multimedia module to facilitate interaction between the multimedia component and the processing component, such as a control motherboard.

The memory is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. The memory may be implemented by any type or combination of volatile and non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component provides power to various components of the terminal device. The power components may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal device.

It should be noted that the "second adhesive layer" may be one of the parts of the module "circuit board assembly", that is, the "second adhesive layer" is assembled with the "other components of the circuit board assembly" into a module, and then is modularly assembled; or the structure can be relatively independent from other components of the circuit board assembly and can be respectively installed, namely the structure can be integrated with other components of the circuit board assembly in the component.

Equivalently, the components, parts and equipment included in the disclosure can be flexibly combined, i.e., can be produced in a modularized manner according to the actual situation, and can be assembled in a modularized manner as an independent module; the modules may be assembled separately, and one module may be constructed in the present apparatus. The division of the above components in the present disclosure is only one of the embodiments, which is convenient for reading, and is not a limitation to the scope of protection of the present disclosure, as long as the above components are included and the function is the same, it should be understood that the technical solutions of the present disclosure are equivalent.

In the description of the present disclosure, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present disclosure.

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

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show several embodiments of the present disclosure, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the disclosure.

Claims (10)

1. A center frame component, comprising:

the middle frame is provided with an accommodating cavity and a through hole penetrating through the side wall of the accommodating cavity, and the accommodating cavity is provided with an opening and a pressure bearing surface opposite to the opening;

the circuit board assembly comprises a flexible circuit board, wherein part of the flexible circuit board is arranged on the bearing surface, penetrates through the through hole and is arranged outside the middle frame; and

and at least part of the sealing element is fixedly arranged in the accommodating cavity to form a protection space which is not communicated with the opening, and part of the flexible circuit board is sealed in the protection space.

2. The middle frame member according to claim 1, wherein the accommodation chamber includes a first inner side wall and a second inner side wall that are disposed opposite to each other in a width direction thereof, and the sealing member is disposed to cover the pressure bearing surface and press-fitted to the first inner side wall and the second inner side wall in a cross section of the accommodation chamber in the width direction.

3. The middle frame member of claim 2, wherein at least one of said first and second inner sidewalls has a seal groove disposed therebetween, and wherein a portion of said seal is embedded within said seal groove.

4. The center frame component of claim 1, wherein the circuit board assembly further comprises an electrical connector disposed on the flexible circuit board, the electrical connector disposed toward the opening; the electric connector includes the protrusion the electric connection portion that the flexible line way board set up, the sealing member is equipped with dodges the first hole of dodging of electric connection portion, the sealing member with the sealed cooperation of flexible line way board, so that first dodge the hole with guard space does not communicate.

5. The middle frame piece of claim 1 wherein said seal member includes at least one annular protrusion that is press fit against a sidewall of said receiving cavity; and/or one of the sealing element and the side wall of the accommodating cavity is provided with an annular groove, and the other one of the sealing element and the side wall of the accommodating cavity is provided with an annular convex body which is in sealing fit with the annular groove.

6. The middle frame component according to claim 1, wherein a first adhesive layer is provided between the sealing member and the flexible printed circuit board, and the sealing member is fixed to the flexible printed circuit board by the first adhesive layer.

7. The middle frame component according to claim 1, wherein the circuit board assembly further comprises a support plate fixedly connected to the flexible circuit board, the support plate being disposed on the pressure-bearing surface.

8. The middle frame member according to claim 7, wherein the flexible wiring board is solder-fixed to the support plate, and an electrical connector is solder-fixed to the flexible wiring board; and/or a second bonding layer is arranged between the support plate and the pressure bearing face.

9. The middle frame part according to any one of claims 1 to 8, wherein the sealing member includes a reinforcing layer and an elastic layer disposed around the reinforcing layer.

10. A terminal device, characterized in that it comprises a middle frame part according to any one of claims 1 to 9.

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