CN111356313A - Housing assembly and electronic device - Google Patents

Housing assembly and electronic device Download PDF

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Publication number
CN111356313A
CN111356313A CN202010179198.XA CN202010179198A CN111356313A CN 111356313 A CN111356313 A CN 111356313A CN 202010179198 A CN202010179198 A CN 202010179198A CN 111356313 A CN111356313 A CN 111356313A
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CN
China
Prior art keywords
notch
installation space
housing assembly
mounting
fireproof
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010179198.XA
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Chinese (zh)
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CN111356313B (en
Inventor
朱乘军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202010179198.XA priority Critical patent/CN111356313B/en
Publication of CN111356313A publication Critical patent/CN111356313A/en
Application granted granted Critical
Publication of CN111356313B publication Critical patent/CN111356313B/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0247Electrical details of casings, e.g. terminals, passages for cables or wiring

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The invention discloses a housing assembly and an electronic device. Wherein, the casing subassembly includes: the front shell is sequentially provided with a first installation space and a second installation space, the first installation space is used for installing a first circuit board of the electronic equipment, and the second installation space is used for installing a battery of the electronic equipment; the rear cover covers the front shell so as to seal the first installation space, the second installation space and the third installation space; the first isolation retaining wall is arranged between the first installation space and the second installation space and is provided with a first abdicating notch communicated with the first installation space and the second installation space; the first fireproof flange covers part of the first yielding notch, and a first yielding channel for the first flexible circuit board of the electronic equipment to pass through is formed at the edge of the first yielding notch. The invention can improve the fireproof performance of the electronic equipment.

Description

Housing assembly and electronic device
Technical Field
The present invention relates to the field of electronic products, and in particular, to a housing assembly and an electronic device using the same.
Background
With the continuous development of technology, electronic devices (e.g., mobile phones, tablet computers, etc.) equipped with rechargeable batteries (e.g., lithium batteries, lithium ion batteries, etc.) have become popular in people's work and life. Among them, the rechargeable battery is an easily ignitable device, and after ignition, the flame rapidly spreads around, and finally comes to the outside of the electronic device, resulting in a fire accident. Therefore, how to improve the fire-proof performance of the electronic equipment is particularly important.
The above-mentioned contents are only for assisting understanding of the technical scheme of the present invention, and do not represent an admission that the above-mentioned contents are the prior art.
Disclosure of Invention
The invention mainly aims to provide a shell assembly and electronic equipment applying the shell assembly, and aims to improve the fire resistance of the electronic equipment.
An embodiment of the present invention provides a housing assembly, including:
the front shell is sequentially provided with a first installation space and a second installation space, the first installation space is used for installing a first circuit board of the electronic equipment, and the second installation space is used for installing a battery of the electronic equipment;
a rear cover covering the front case to close the first, second, and third installation spaces;
the first isolation retaining wall is arranged between the first installation space and the second installation space, and is provided with a first abdicating notch for communicating the first installation space with the second installation space;
the first fireproof flange covers part of the first yielding notch, and a first yielding channel for the first flexible circuit board of the electronic equipment to pass through is formed at the edge of the first yielding notch.
An embodiment of the present invention also provides an electronic device, including a housing assembly, the housing assembly including:
the front shell is sequentially provided with a first installation space and a second installation space, the first installation space is used for installing a first circuit board of the electronic equipment, and the second installation space is used for installing a battery of the electronic equipment;
a rear cover covering the front case to close the first, second, and third installation spaces;
the first isolation retaining wall is arranged between the first installation space and the second installation space, and is provided with a first abdicating notch for communicating the first installation space with the second installation space;
the first fireproof flange covers part of the first yielding notch, and a first yielding channel for the first flexible circuit board of the electronic equipment to pass through is formed at the edge of the first yielding notch.
According to the technical scheme, the first avoidance channel defined by the first fireproof retaining edge and the edge of the first avoidance notch can be used for penetrating the flexible circuit board as the first avoidance channel is directly communicated with the first installation space and the second installation space on two sides of the first isolation retaining wall, so that the electrical connection between the first circuit board of the electronic equipment and the battery of the electronic equipment is guaranteed, and the power supply of the battery to the first circuit board is realized. And, because first fire prevention flange has only sheltered from the first breach of stepping down of part, not only ensured the existence that can be used for wearing to establish the first passageway of dodging of flexible circuit board, but also realized the shutoff that is arranged in wearing to establish other positions outside the flexible circuit board to in the first breach of stepping down, thereby effectively reduced the size of the first breach of stepping down department flame propagation route, reduced flame by the first breach of stepping down to external diffusion's possibility, played the effect that prevents flame diffusion, promote electronic equipment's fire behavior.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the invention;
FIG. 2 is an exploded view of the electronic device of FIG. 1;
FIG. 3 is an enlarged view of the front housing, the first isolation retaining wall and the second isolation retaining wall of FIG. 2;
FIG. 4 is an enlarged view of the insert of FIG. 2;
FIG. 5 is a schematic view of the electronic device of FIG. 1 with the cover and battery disassembled;
FIG. 6 is an enlarged view taken at A in FIG. 5;
FIG. 7 is a schematic view of the structure of FIG. 5 from another perspective;
fig. 8 is an enlarged view at B in fig. 7.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
1000 Electronic device 40 First fireproof rib
100 Shell assembly 50 Second isolation retaining wall
10 Front shell 50a Second abdication gap
10a First installation space 50b Second avoidance channel
10b Second installation space 60 Second fireproof rib
10c Third installation space 70 First mounting cover plate
11 Base plate 80 Second mounting cover plate
13 Side plate 90 Insert piece
15 Via hole 91 Substrate
20 Back cover 93 Flanging
30 First isolation retaining wall 200 First circuit board
30a First abdication gap 300 Battery with a battery cell
30b First avoidance channel 400 Second circuit board
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a housing assembly 100, which can be applied to an electronic device 1000 and aims to improve the fire-proof performance of the electronic device 1000.
It is understood that the electronic device 1000 may be, but is not limited to, a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (motion Picture Experts Group Audio Layer III) player, an MP4 (motion Picture Experts Group Audio Layer IV) player, a wearable device, a navigator, a handheld game console, etc.
The specific structure of the housing assembly 100 of the present invention will now be described:
as shown in fig. 1 to 3, in an embodiment of the housing assembly 100 of the present invention, the housing assembly 100 includes a front housing 10, a rear cover 20, a first isolation wall 30 and a first fireproof rib 40;
the front shell 10 is sequentially provided with a first installation space 10a, a second installation space 10b and a third installation space 10c, namely, the first installation space 10a is adjacent to the second installation space 10b, and the second installation space 10b is adjacent to the third installation space 10 c; the first mounting space 10a is used for mounting the first circuit board 200 of the electronic apparatus 1000, the second mounting space 10b is used for mounting the battery 300 of the electronic apparatus 1000, and the third mounting space 10c is used for mounting the second circuit board 400 of the electronic apparatus 1000; it is understood that the first circuit board 200 of the electronic device 1000 may be a small board of the electronic device 1000 (e.g., a small board of a mobile phone), and correspondingly, the second circuit board 400 of the electronic device 1000 may be a main board of the electronic device 1000 (e.g., a main board of a mobile phone). At this time, the first circuit board 200 may be electrically connected to the battery 300 of the electronic device 1000 through the first flexible circuit board of the electronic device 1000, and the second circuit board 400 may be electrically connected to the battery 300 of the electronic device 1000 through the second flexible circuit board of the electronic device 1000.
The rear cover 20 covers the front case 10 to close the first installation space 10a, the second installation space 10b, and the third installation space 10 c; specifically, the rear cover 20 may be fixed to the front case 10 by means of a snap connection, an adhesive connection, a screw connection, or the like.
Further, as shown in fig. 5 and 6, the first isolation wall 30 is disposed between the first installation space 10a and the second installation space 10b, and the first isolation wall 30 is opened with a first relief notch 30a communicating the first installation space 10a and the second installation space 10 b.
The first fireproof rib 40 shields part of the first abdicating notch 30a, and a first abdicating channel 30b for the first flexible circuit board of the electronic device 1000 to pass through is formed at the edge of the first abdicating notch 30 a; specifically, the first fireproof rib 40 may be located in the first installation space 10a, and the first abdicating notch 30a is shielded by a side of the first abdicating notch 30a departing from the second installation space 10 b; the first fireproof rib 40 can also be positioned in the second installation space 10b, and the first abdicating notch 30a is shielded by the side of the first abdicating notch 30a departing from the first installation space 10 a; the first fireproof rib 40 may be partially or completely accommodated in the first avoiding notch 30a to shield the first avoiding notch 30 a.
At this time, the first avoidance channel 30b defined by the first fireproof rib 40 and the edge of the first avoidance notch 30a can be used for penetrating the flexible circuit board because it is directly communicated with the first installation space 10a and the second installation space 10b on both sides of the first isolation retaining wall 30, thereby ensuring the electrical connection between the first circuit board 200 of the electronic device 1000 and the battery 300 of the electronic device 1000, and realizing the power supply of the battery 300 to the first circuit board 200. And, because first fire prevention flange 40 has only sheltered from partial first breach of stepping down 30a, not only ensured the existence that can be used for wearing to establish the first passageway 30b of dodging of flexible circuit board, but also realized the shutoff that is arranged in the first breach of stepping down 30a except that being used for wearing to establish other positions outside the flexible circuit board, thereby effectively reduced the size of first breach of stepping down 30a department flame propagation route, reduced the possibility that flame is spread to the external world by first breach of stepping down 30a, played the effect that prevents flame diffusion, promote electronic equipment 1000's fire behavior.
It should be noted that the first isolation wall 30 may be integrally formed with the front housing 10 (for example, formed by milling), or may be formed as two separate parts with the front housing 10, and assembled together by assembling (for example, snap-fit connection, adhesive bonding, etc.) after being separately formed.
In addition, in order to facilitate the installation of the flexible circuit board of the electronic device 1000 at the first abdicating notch 30a, the processing and forming of the first abdicating notch 30a are facilitated, and the stability of the flexible circuit board installed at the first abdicating notch 30a is enhanced, the first abdicating notch 30a and the first fireproof rib 40 can be designed as follows: the first receding notch 30a is provided on a side of the first isolation retaining wall 30 facing the rear cover 20 (i.e., the first receding notch 30a is provided at the top of the first isolation retaining wall 30), the first fireproof rib 40 is inserted into the first receding notch 30a and is spaced from the lower edge of the first receding notch 30a, and the first receding channel 30b is formed between the first fireproof rib 40 and the lower edge of the first receding notch 30 a.
Further, referring to fig. 2, fig. 5 and fig. 6, the housing assembly 100 further includes a first mounting cover 70, the first mounting cover 70 is disposed in the first mounting space 10a and is used for mounting and fixing the first circuit board 200 of the electronic device 1000; specifically, the first mounting cover plate 70 is flatly covered in the first mounting space 10a and is spaced from the bottom wall of the first mounting space 10 a; thus, the first circuit board 200 of the electronic device 1000 can be clamped between the first mounting cover 70 and the bottom wall of the first mounting space 10a, thereby ensuring the stability of the arrangement. Also, the first mounting cover plate 70 has a side edge disposed toward the first escape notch 30 a; at this time, in order to facilitate the fixing of the first fireproof rib 40 and the assembling of the first fireproof rib 40, the first fireproof rib 40 is disposed on the side of the first installation cover plate 70 facing the first abdicating notch 30 a; thus, the first fireproof rib 40 can be fixed on the side of the first mounting cover plate 70 when or after the first mounting cover plate 70 is manufactured, so that the first fireproof rib 40 and the first mounting cover plate 70 can be assembled together; then, the assembly of the first fireproof ribs 40 can be completed synchronously with the assembly of the first mounting cover plate 70; therefore, the method is more convenient and more efficient.
It should be noted that the first fireproof rib 40 may be integrally formed with the first mounting cover plate 70 (e.g., integrally injection molded), or may be formed as two separate parts with the first mounting cover plate 70, and assembled together by assembling relationship (e.g., snap connection, adhesive connection, etc.) after being separately formed.
In addition, referring to fig. 4, the housing assembly 100 further includes an insert 90 embedded in the first mounting cover plate 70, the insert 90 includes a base plate 91 and a flange 93, the base plate 91 has a side facing the first abdicating notch 30a, the flange 93 is disposed on the side of the base plate 91 facing the first abdicating notch 30a, and an outer surface of the flange 93 faces the first abdicating notch 30 a. Thus, even if the first mounting cover plate 70 is made of non-fireproof plastic, even if a part of the first mounting cover plate 70 at the first abdicating notch 30a is eroded by flame, the flange 93 of the insert 90 is exposed; at this time, the flange 93 of the insert 90 can still reduce the size of the flame propagation path at the first abdicating notch 30a, so as to prevent the flame from spreading, thereby realizing double insurance. Further, the distance between the burring 93 and the first partition wall 30 may be set within a range of less than 1mm to better prevent the flame from spreading. In addition, the insert 90 and the first mounting cover plate 70 can be processed together in an insert injection molding manner, so that the production and the manufacture are more convenient. In addition, because the insert 90 can be made of metal, the fire resistance can be greatly improved.
As shown in fig. 7 and 8, a similar structure may be provided for the third installation space 10c side, as follows:
the housing assembly 100 further includes a second retaining wall 50 and a second fire stop 60, wherein:
the second isolation retaining wall 50 is arranged between the second installation space 10b and the third installation space 10c, and the second isolation retaining wall 50 is provided with a second abdicating notch 50a communicating the second installation space 10b and the third installation space 10 c;
the second fireproof rib 60 covers part of the second abdicating notch 50a, and a second abdicating channel 50b for the second flexible circuit board of the electronic device 1000 to pass through is formed at the edge of the second abdicating notch 50 a; specifically, the second fireproof rib 60 may be located in the third installation space 10c, and the second abdicating notch 50a is shielded by a side of the second abdicating notch 50a departing from the second installation space 10 b; the second fireproof rib 60 can also be positioned in the second installation space 10b, and the second abdicating notch 50a is shielded by the side of the second abdicating notch 50a departing from the third installation space 10 c; the second fireproof rib 60 may be partially or completely accommodated in the second avoiding notch 50a to shield the second avoiding notch 50 a.
At this time, the second avoidance channel 50b defined by the second fireproof rib 60 and the edge of the second avoidance notch 50a can be used for penetrating the flexible circuit board because it is directly communicated with the second installation space 10b and the third installation space 10c on both sides of the second isolation wall 50, thereby ensuring the electrical connection between the second circuit board 400 of the electronic device 1000 and the battery 300 of the electronic device 1000, and realizing the power supply of the battery 300 to the second circuit board 400. And, because the second fireproof rib 60 has only sheltered from partial second notch 50a of stepping down, not only ensured to be used for wearing to establish the second of flexible circuit board and dodged the existence of passageway 50b, but also realized the shutoff to other positions except that being used for wearing to establish the flexible circuit board in the second notch 50a of stepping down, thereby effectively reduced the size of the flame propagation route of second notch 50a of stepping down department, reduced the possibility that flame is by second notch 50a of stepping down to the external world diffusion, played the effect that prevents flame diffusion, promoted electronic equipment 1000's fire behavior.
It should be noted that the second isolation wall 50 may be integrally formed with the front housing 10 (for example, formed by milling), or may be formed as two separate parts with the front housing 10, and assembled together by assembling (for example, snap-fit connection, adhesive bonding, etc.) after being separately formed.
In addition, in order to facilitate the installation of the flexible circuit board of the electronic device 1000 at the second abdicating notch 50a, the second abdicating notch 50a is conveniently processed and formed, and the stability of the flexible circuit board installed at the second abdicating notch 50a is enhanced, the second abdicating notch 50a and the second fireproof rib 60 can also be designed as follows: the second notch of stepping down 50a sets up in the side of second isolation barricade 50 towards back lid 20 (namely the second notch of stepping down 50a sets up in the top of second isolation barricade 50), and second fire prevention flange 60 inserts and locates in the second notch of stepping down 50a to set up with the lower limb interval of second notch of stepping down 50a, enclose between the lower limb of second fire prevention flange 60 and second notch of stepping down 50a and close and be formed with aforementioned second and dodge passageway 50 b.
Further, referring to fig. 2, the housing assembly 100 further includes a second mounting cover 80, and the second mounting cover 80 is disposed in the third mounting space 10c and is used for mounting and fixing a second circuit board 400 of the electronic device 1000; specifically, the second mounting cover plate 80 is flatly covered in the third mounting space 10c and is spaced from the bottom wall of the third mounting space 10 c; thus, the second circuit board 400 of the electronic device 1000 can be clamped between the second mounting cover 80 and the bottom wall of the third mounting space 10c, thereby ensuring the stability of the arrangement. The second mounting cover plate 80 has a side edge disposed toward the second relief notch 50 a; at this time, in order to facilitate the fixing of the second fireproof rib 60 and the assembling of the second fireproof rib 60, the second fireproof rib 60 is disposed on the side of the second installation cover plate 80 facing the second abdicating notch 50 a; thus, the second fireproof rib 60 can be fixed on the side of the second mounting cover plate 80 when or after the second mounting cover plate 80 is processed and manufactured, so that the second fireproof rib 60 and the second mounting cover plate 80 can be assembled together; then, the assembly of the second fire stop 60 can be completed synchronously with the assembly of the second mounting plate 80; therefore, the method is more convenient and more efficient.
It should be noted that the second fireproof rib 60 may be integrally formed with the second mounting cover plate 80 (e.g., integrally injection molded), or may be formed as two separate parts with the second mounting cover plate 80, and assembled together by assembling relationship (e.g., snap connection, adhesive connection, etc.) after being separately formed.
In addition, in order to reduce the possibility of flame spreading from the gap between the first mounting cover 70 and the rear cover 20 to the outside and improve the fire-proof performance of the electronic device 1000, as shown in fig. 5, the first mounting cover 70 and the rear cover 20 may also have the following design:
a first fitting gap is formed between a plate surface of the first mounting cover plate 70 facing the rear cover 20 and a surface of the rear cover 20 facing the first mounting cover plate 70, and a width of the first fitting gap is less than 1 mm. Gap widths below 1mm are effective in preventing flame out.
Also, in order to reduce the possibility of flame spreading from the gap between the first isolation wall 30 and the back cover 20 to the outside and improve the fire-proof performance of the electronic device 1000, as shown in fig. 3, the first isolation wall 30 and the back cover 20 may also be designed as follows:
a second fitting gap is formed between the top of the first isolation wall 30 and the rear cover 20, and the width of the second fitting gap is less than 1 mm. Gap widths below 1mm are effective in preventing flame out.
Similarly, in order to reduce the possibility of flame spreading to the outside from the gap between the second mounting cover plate 80 and the rear cover 20, and improve the fire-proof performance of the electronic device 1000, as shown in fig. 7, the second mounting cover plate 80 and the rear cover 20 may also have the following design:
a third fitting gap is formed between the plate surface of the second mounting cover plate 80 facing the rear cover 20 and the surface of the rear cover 20 facing the second mounting cover plate 80, and the width of the third fitting gap is less than 1 mm. Gap widths below 1mm are effective in preventing flame out.
In addition, in order to reduce the possibility of flame diffusion from the gap between the second isolation wall 50 and the rear cover 20 to the outside and improve the fire-proof performance of the electronic device 1000, as shown in fig. 3, the second isolation wall 50 and the rear cover 20 may also be designed as follows:
a fourth fitting gap is formed between the top of the second isolation wall 50 and the rear cover 20, and the width of the fourth fitting gap is less than 1 mm. Gap widths below 1mm are effective in preventing flame out.
In addition, in order to reduce the possibility of flame spreading from the gap between the front casing 10 and the rear cover 20 to the outside and improve the fire-proof performance of the electronic device 1000, as shown in fig. 2 and 3, the front casing 10 and the rear cover 20 may also be designed as follows:
a fifth fitting gap is formed between the front case 10 and the rear cover 20, and the width of the fifth fitting gap is less than 1 mm. Gap widths below 1mm are effective in preventing flame out. Specifically, the front shell 10 includes a bottom plate 11 and two bottom plates 13, and the two bottom plates 13 are disposed opposite to each other and are respectively connected to two side edges of the bottom plate 11; the two bottom plates 13, the first isolation wall 30, the second isolation wall 50, and the bottom plate 11 together enclose a second installation space 10b for installing the battery 300 of the electronic apparatus 1000. At this time, the above-mentioned fifth fitting gap is formed between the top of the bottom plate 13 (i.e., the side of the bottom plate 13 facing away from the bottom plate 11) and the rear cover 20.
In addition, a surface of the bottom plate 11 facing the first installation space 10a (i.e., the bottom wall of the first installation space 10 a) is further opened with a via hole 15 for leading out a flexible circuit board, so as to supply power to other electric devices of the electronic apparatus 1000 by the battery 300. At this time, fire resistance can also be realized because the side of the through hole 15 facing away from the first installation space 10a is covered with a screen single body (both the iron frame and the glass are made of fireproof materials of V0 grade).
Further, in order to reduce the possibility of fire striking the front case 10, reduce the possibility of the fire being transmitted through the front case 10, and improve the fire-proof performance of the electronic device 1000, the front case 10 is a fire-proof member. It is understood that the front case 10 may be made of a fire-retardant material, and the fire-retardant material may be selected from non-combustible materials and fire-retardant materials. Specifically, the front case 10 may be a metal material piece, a fireproof plastic piece, or an injection molded piece made of a metal material and a fireproof plastic with an insert therein. For example, the front case 10 is made of an AT140 type aluminum alloy material.
In order to reduce the possibility of fire on the rear cover 20 and reduce the possibility of flame transmission through the rear cover 20, the rear cover 20 is a fireproof member, and the fireproof performance of the electronic device 1000 is improved. It is understood that the rear cover 20 may be made of a fire-resistant material, and the fire-resistant material may be selected from non-combustible materials and flame-retardant materials. Specifically, the rear cover 20 may be a metal material piece, a fireproof plastic piece, or an injection molded piece made of a metal material and a fireproof plastic with an insert inside. For example, the rear cover 20 is made of PC9414 type fireproof plastic.
To further reduce the possibility of fire on the rear cover 20, reduce the possibility of fire being transmitted through the rear cover 20, and improve the fire-resistant performance of the electronic device 1000, the inner surface of the rear cover 20 is provided with a fire-resistant layer. It will be appreciated that the fire resistant layer may be formed from a fire resistant material, which may be selected from non-combustible or fire resistant materials. Specifically, the fireproof layer may be a single-layer structure composed of a metal material layer, a glass material layer, a ceramic material layer, or a fireproof plastic layer; and the structure can also be a multilayer structure consisting of one or more of a metal material layer, a glass material layer, a ceramic material layer and a fireproof plastic layer. In addition, the fire-retardant layer may also be applied to the inner surface of the rear cover 20 in the form of a coating.
Of course, in other embodiments of the housing assembly 100 of the present invention, the arrangement of the first fireproof ribs 40 can be reasonably changed as follows: the first fireproof ribs 40 are protruded on the inner surface of the rear cover 20. Specifically, the first fireproof rib 40 may be integrally formed with the rear cover 20 (e.g., integrally injection-molded), or may be formed as two separate parts with the rear cover 20, and assembled together by assembling (e.g., snap-fit connection, adhesive connection, etc.) after being separately formed. At this time, the assembly of the first fireproof rib 40 can be completed synchronously with the closing action of the cover 20, which is more convenient and efficient. Moreover, the design also has the advantages of simple structure, convenient manufacture and the like.
Similarly, in other embodiments of the housing assembly 100 of the present invention, the arrangement of the second fire stop 60 may be varied as follows: a second fire stop 60 is provided protruding from the inner surface of the rear cover 20. Specifically, the second fireproof rib 60 may be integrally formed with the rear cover 20 (e.g., integrally injection-molded), or may be formed as two separate parts with the rear cover 20, and assembled together by assembling (e.g., snap-fit connection, adhesive connection, etc.) after being separately formed. At this time, the assembly of the second fireproof rib 60 can be completed synchronously with the closing action of the cover 20, which is more convenient and efficient. Moreover, the design also has the advantages of simple structure, convenient manufacture and the like.
The invention further provides an electronic device 1000, the electronic device 1000 includes the housing assembly 100 as described above, and the specific structure of the housing assembly 100 is detailed in the foregoing embodiments. Since the electronic device 1000 adopts all technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by all the technical solutions of all the foregoing embodiments are achieved, and are not described in detail herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (15)

1. A housing assembly for an electronic device, the housing assembly comprising:
the front shell is sequentially provided with a first installation space and a second installation space, the first installation space is used for installing a first circuit board of the electronic equipment, and the second installation space is used for installing a battery of the electronic equipment;
a rear cover covering the front case to close the first, second, and third installation spaces;
the first isolation retaining wall is arranged between the first installation space and the second installation space, and is provided with a first abdicating notch for communicating the first installation space with the second installation space;
the first fireproof flange covers part of the first yielding notch, and a first yielding channel for the first flexible circuit board of the electronic equipment to pass through is formed at the edge of the first yielding notch.
2. The housing assembly according to claim 1, wherein the first receding notch is formed on a side of the first isolation retaining wall facing the rear cover, the first fireproof rib is inserted into the first receding notch and is spaced from a lower edge of the first receding notch, and the first receding channel is formed between the first fireproof rib and the lower edge of the first receding notch.
3. The housing assembly of claim 1, wherein the first flame barrier is raised to an inner surface of the rear cover.
4. The housing assembly of claim 1, further comprising a first mounting cover plate disposed in the first mounting space for mounting and fixing a first circuit board of the electronic device, the first mounting cover plate having a side edge disposed toward the first receding gap;
the first fireproof retaining side is arranged on the side edge of the first abdicating notch, and the first installation cover plate faces the side edge of the first abdicating notch.
5. The housing assembly of claim 4 further comprising an insert embedded in the first mounting cover plate, the insert including a base and a flange, the base having a side disposed toward the first abdicating notch, the flange being disposed on the base toward the side of the first abdicating notch, an outer surface of the flange being disposed toward the first abdicating notch.
6. The housing assembly of claim 4, wherein a first mating gap is formed between a plate surface of the first mounting cover plate facing the rear cover and a surface of the rear cover facing the first mounting cover plate, and a width of the first mating gap is less than 1 mm;
and/or a second fit clearance is formed between the top of the first isolation retaining wall and the rear cover, and the width of the second fit clearance is lower than 1 mm.
7. The housing assembly of claim 1, wherein the front case is further provided with a third mounting space adjacent to the second mounting space, the third mounting space being for mounting a second circuit board of an electronic device; the housing assembly further includes:
the second isolation retaining wall is arranged between the second installation space and the third installation space, and is provided with a second abdicating notch for communicating the second installation space and the third installation space;
the second fireproof flange covers part of the second yielding notch, and a second yielding channel for a second flexible circuit board of the electronic equipment to pass through is formed at the edge of the second yielding notch.
8. The housing assembly according to claim 7, wherein the second receding notch is formed on a side of the second isolation retaining wall facing the rear cover, the second fireproof rib is inserted into the second receding notch and is spaced from a lower edge of the second receding notch, and the second receding channel is formed between the second fireproof rib and the lower edge of the second receding notch.
9. The housing assembly of claim 7, wherein the second fire stop is raised on an inner surface of the back cover.
10. The housing assembly of claim 7, further comprising a second mounting cover plate disposed in the third mounting space for mounting and fixing a second circuit board of the electronic device, the second mounting cover plate having a side edge disposed toward the second relief notch;
the second fireproof flange is arranged on the side edge of the second abdicating notch, which faces the second mounting cover plate.
11. The housing assembly of claim 10, wherein a third mating gap is formed between a panel surface of the second mounting cover plate facing the rear cover and a surface of the rear cover facing the second mounting cover plate, and a width of the third mating gap is less than 1 mm;
and/or a fourth fit clearance is formed between the top of the second isolation retaining wall and the rear cover, and the width of the fourth fit clearance is lower than 1 mm.
12. The housing assembly of claim 1, wherein a fifth mating gap is formed between the front shell and the rear cover, the fifth mating gap having a width of less than 1 mm.
13. The housing assembly of claim 1, wherein the front shell is a fire resistant piece; and/or the rear cover is a fireproof piece.
14. A housing assembly according to any one of claims 1 to 13, wherein an inner surface of the rear cover is provided with a fire resistant layer.
15. An electronic device comprising a housing assembly as claimed in any one of claims 1 to 14.
CN202010179198.XA 2020-03-13 2020-03-13 Housing assembly and electronic device Active CN111356313B (en)

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CN2751451Y (en) * 2004-10-04 2006-01-11 富港电子(东莞)有限公司 Chargeable backup battery
JP2011138747A (en) * 2009-12-31 2011-07-14 Shenzhen Futaihong Precision Industrial Co Ltd Lock mechanism of battery cover, and portable electronic device using the same
CN102214808A (en) * 2010-04-07 2011-10-12 索尼公司 Battery pack and method for making same
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CN105897966A (en) * 2016-05-25 2016-08-24 北京小米移动软件有限公司 Mobile communication device
JP2017539070A (en) * 2014-11-05 2017-12-28 エルジー・ケム・リミテッド Cartridge frame having double side wall structure and battery module including the same
CN207368702U (en) * 2017-10-10 2018-05-15 商洛市环球科技有限公司 A kind of mobile power
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11514617A (en) * 1996-07-24 1999-12-14 エリクソン インコーポレイテッド Latch mechanism biased by torsional force
CN2532584Y (en) * 2001-12-27 2003-01-22 吉林省华软技术股份有限公司 Lithium cell aluminium cap with explosion-proof film
US20040198243A1 (en) * 2002-08-13 2004-10-07 Tony Tasy Mobile phone with a replaceable face panel
US20040233653A1 (en) * 2003-05-20 2004-11-25 Luo Xinghuang Battery cover assembly for portable electronic device
CN2751451Y (en) * 2004-10-04 2006-01-11 富港电子(东莞)有限公司 Chargeable backup battery
JP2011138747A (en) * 2009-12-31 2011-07-14 Shenzhen Futaihong Precision Industrial Co Ltd Lock mechanism of battery cover, and portable electronic device using the same
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JP2017539070A (en) * 2014-11-05 2017-12-28 エルジー・ケム・リミテッド Cartridge frame having double side wall structure and battery module including the same
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