CN114428539A - Expansion card shell, expansion card module and server - Google Patents

Expansion card shell, expansion card module and server Download PDF

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Publication number
CN114428539A
CN114428539A CN202011179247.6A CN202011179247A CN114428539A CN 114428539 A CN114428539 A CN 114428539A CN 202011179247 A CN202011179247 A CN 202011179247A CN 114428539 A CN114428539 A CN 114428539A
Authority
CN
China
Prior art keywords
expansion card
hole
hook
main body
dimensional structure
Prior art date
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.)
Pending
Application number
CN202011179247.6A
Other languages
Chinese (zh)
Inventor
傅东程
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.)
Technical Steel Technology Co ltd
Original Assignee
Giga Byte Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Giga Byte Technology Co Ltd filed Critical Giga Byte Technology Co Ltd
Priority to CN202011179247.6A priority Critical patent/CN114428539A/en
Publication of CN114428539A publication Critical patent/CN114428539A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/18Packaging or power distribution
    • G06F1/181Enclosures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/20Cooling means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/163Indexing scheme relating to constructional details of the computer
    • G06F2200/1638Computer housing designed to operate in both desktop and tower orientation

Abstract

The invention provides an expansion card shell, an expansion card module and a server. The expansion card shell is suitable for being installed on an expansion card assembly, the expansion card assembly comprises a connecting end, the expansion card shell comprises a thin plate, the thin plate comprises a main body and a clamping hook connected to the main body, the main body comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the clamping hook, the thin plate is bent along the folding lines, the clamping hook is buckled in the clamping hole, and a three-dimensional structure is formed and comprises two opposite openings. The three-dimensional structure is suitable for covering the expansion card assembly, the connecting end of the expansion card assembly is suitable for penetrating out of the through hole of the main body, and the airflow is suitable for flowing through the expansion card assembly in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.

Description

Expansion card shell, expansion card module and server
Technical Field
The present invention relates to an expansion card housing, an expansion card module and a server, and more particularly, to an expansion card housing that does not require a mold opening and is easy to assemble, an expansion card module having the expansion card housing, and a server having the expansion card housing.
Background
At present, the shells of the common display cards on the market are almost manufactured by adopting a metal stamping mode or a plastic injection molding mode, the mold opening period is long, and the mold cost is high. In addition, the display card and the shell are connected by screws, so that the assembly is time-consuming. If the shell needs to be disassembled to replace the radiator on the display card, the heat dissipation efficiency is enhanced, the disassembly of the shell is labor-consuming and time-consuming, and the original shell cannot be used any more due to the fact that the size of the radiator which is arranged on the display card is increased, so that waste is caused.
Disclosure of Invention
The invention provides an expansion card shell which does not need to be opened and is convenient to assemble.
The invention provides an expansion card module which is provided with the expansion card shell.
The invention provides a server which is provided with the expansion card shell.
The invention relates to an expansion card shell which is suitable for being installed on an expansion card assembly, wherein the expansion card assembly comprises a connecting end, the expansion card shell comprises a thin plate and a hook, the thin plate comprises a main body and the hook is connected to the main body, the main body comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the hook, the thin plate is bent along the folding lines, the hook is buckled in the clamping hole to form a three-dimensional structure, and the three-dimensional structure comprises two opposite openings. The three-dimensional structure is suitable for covering the expansion card assembly, the connecting end of the expansion card assembly is suitable for penetrating out of the through hole of the main body, and the airflow is suitable for flowing through the expansion card assembly in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.
The invention relates to an expansion card module, which comprises an expansion card component and an expansion card shell. The expansion card assembly comprises a connecting end, wherein the connecting end is arranged on the mainboard in a pluggable manner. The expansion card assembly is detachably coated by the expansion card shell and comprises a thin plate and a clamping hook connected to the thin plate, wherein the thin plate comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the clamping hook, the thin plate is bent along the folding lines, the clamping hook is buckled in the clamping hole, a three-dimensional structure is formed, and the three-dimensional structure comprises two opposite openings. The three-dimensional structure covers the expansion card assembly, the connecting end of the expansion card assembly penetrates through the through hole of the main body, and the airflow blown out by the fan is suitable for flowing through the expansion card assembly in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.
The invention relates to a server, which comprises a mainboard, a fan and an expansion card module. The fan is arranged on one side of the mainboard. The expansion card module comprises an expansion card component and an expansion card shell. The expansion card assembly comprises a connecting end, wherein the connecting end is arranged on the mainboard in a pluggable manner. The expansion card assembly is detachably coated by the expansion card shell and comprises a thin plate and a clamping hook connected to the thin plate, wherein the thin plate comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the clamping hook, the thin plate is bent along the folding lines, the clamping hook is buckled in the clamping hole, a three-dimensional structure is formed, and the three-dimensional structure comprises two opposite openings. The three-dimensional structure covers the expansion card assembly, the connecting end of the expansion card assembly penetrates through the through hole of the main body, and the airflow blown out by the fan is suitable for flowing through the expansion card assembly in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.
In an embodiment of the invention, the fan faces one of the two openings of the three-dimensional structure.
In an embodiment of the invention, the expansion card assembly includes an expansion card body and a heat sink disposed on the expansion card body, and the three-dimensional structure abuts against the heat sink and the expansion card body.
In an embodiment of the invention, the main body and the hook are integrated.
In an embodiment of the invention, the hook includes two sub-hook portions, a gap is formed between the two sub-hook portions, a maximum common width of the two sub-hook portions is greater than a width of the hook hole, the width of the sub-hook portion is less than 1/2 of the width of the hook hole, and the two sub-hook portions are pressed by an edge of the main body beside the hook hole to approach each other, pass through the hook hole, and recover after passing through the hook hole during the insertion of the hook into the hook hole.
Based on the above, the expansion card housing of the invention is made of a thin plate, the main body of the thin plate includes a plurality of folding lines, the thin plate is bent along the folding lines, and the hooks of the thin plate are buckled with the fastening holes on the main body, so as to form a three-dimensional structure capable of covering the expansion card assembly. The expansion card shell can be fixed only by inserting the hook into the clamping hole, and can achieve the effect of quick assembly and disassembly without using additional tools. In addition, the expansion card shell of the invention is made by a thin plate, so that the cost can be saved without opening a die. In addition, the expansion card shell can adjust the size of the thin plate and the position of the folding line according to requirements, and can be used for expansion card components with different sizes. Furthermore, the three-dimensional structure of the expansion card shell comprises two opposite openings, and the airflow can flow through the expansion card assembly in the three-dimensional structure from one of the two openings of the three-dimensional structure and flow out from the other of the two openings. Therefore, the expansion card housing of the present invention not only has the function of protecting the expansion card assembly, but also can be used as a wind scooper to guide the airflow to flow through the expansion card assembly inside.
Drawings
Fig. 1 is an expanded view of an expansion card shell according to an embodiment of the invention.
FIG. 2 is a schematic view of the expansion card housing of FIG. 1 after being bent and not yet covering the expansion card assembly.
FIG. 3A is a schematic diagram of the expansion card housing of FIG. 1 enclosing an expansion card assembly.
Fig. 3B is a schematic view of another perspective of fig. 3A.
Fig. 4 is a schematic diagram of the expansion card housing of fig. 1 after forming a three-dimensional structure.
Fig. 5 is a schematic diagram illustrating an expansion card module according to an embodiment of the invention being mounted on a motherboard.
Fig. 6 is a schematic diagram of a server in accordance with an embodiment of the present invention.
The reference numbers are as follows:
w1, W2, W3 Width
10 server
12 the main board
16: fan
17 air guide cover
20 expansion card module
22 expansion card assembly
24 expansion card body
26. 27 connection end
28 heat radiator
100 expansion card casing
110 thin plate
111 main body
112 fold line
113. 117 perforation
114 clamping hole
115 stereoscopic structure
116 opening of the container
120, a clamping hook
122 sub hook part
124: clearance
Detailed Description
Fig. 1 is an expanded view of an expansion card shell according to an embodiment of the invention. Referring to fig. 1, the expansion card casing 100 includes a thin plate 110, and the thin plate 110 is, for example, Mylar, but the thin plate 110 may also be a plastic flat plate, a plastic corrugated plate, an acrylic plate, or a cardboard made of other materials, and the thin plate 110 is only required to be insulating and bendable, and the type of the thin plate 110 is not limited thereto.
In the present embodiment, the thin plate 110 includes a main body 111 and at least one hook 120 connected to the main body 111, and the main body 111 includes a plurality of folding lines 112, through holes 113 and 117, and at least one hole 114 corresponding to the at least one hook 120. These folding lines 112 are disposed in parallel on the main body 111. The number of the hooks 120 and the plurality of the locking holes 114 are plural, the hooks 120 protrude from one side of the main body 111, and the locking holes 114 are close to the other side of the main body 111. Of course, the number and position of the hooks 120 and the locking holes 114 on the thin plate 110 and the position of the folding line 112 can be adjusted according to actual requirements, and are not limited by the drawings.
FIG. 2 is a schematic view of the expansion card housing of FIG. 1 after being bent and not yet covering the expansion card assembly. FIG. 3A is a schematic diagram of the expansion card housing of FIG. 1 enclosing an expansion card assembly. Fig. 3B is a schematic view of another perspective of fig. 3A. Fig. 4 is a schematic diagram of the expansion card housing of fig. 1 after forming a three-dimensional structure.
Referring to fig. 2 to fig. 4, in the present embodiment, the thin plate 110 of the expansion card housing 100 can be bent along the folding lines 112, and the hook 120 is buckled in the fastening hole 114 to form a three-dimensional structure 115 (fig. 4), so as to cover the expansion card assembly 22 (fig. 2) to form the expansion card module 20.
In the present embodiment, the expansion card component 22 is, for example, a display card component, but in other embodiments, the expansion card component 22 may also be a network card component or a communication card component, and the type of the expansion card component 22 is not limited thereto.
Referring back to fig. 1, in the present embodiment, the main body 111 and the hook 120 are integrated. In the present embodiment, the hook 120 includes two sub-hook portions 122, and a gap 124 is formed between the two sub-hook portions 122. The maximum common width W1 of the two sub-hooks 122 is greater than the width W2 of the card hole 114, and the width W3 of the sub-hooks 122 is less than 1/2 of the width W2 of the card hole 114. During the insertion of the hook 120 into the hook hole 114, the two sub-hook portions 122 are pressed close to each other by the edge of the main body 111 beside the hook hole 114, pass through the hook hole 114, and are restored after passing through the hook hole 114. Such a design may make the hook 120 less likely to be easily removed from the card hole 114 when being snapped into the card hole 114. Of course, the form and size relationship of the hook 120 is not limited thereto.
In addition, as shown in fig. 2, in the present embodiment, the expansion card assembly 22 includes an expansion card body 24 and a heat sink 28 disposed on the expansion card body 24. The heat sink 28 includes a plurality of fins. The expansion card body 24 includes two connectors 26 (fig. 3A) and 27 (fig. 3B), wherein one of the connectors 26 is located below for connecting to the motherboard 12 (fig. 5). Another connection end 27 is located above for connection to another terminal (not shown). Of course, the number and location of the connecting ends 26, 27 is not so limited.
As shown in fig. 3A and 3B, the lower connecting end 26 of the expansion card assembly 22 is disposed through the through hole 113 of the main body 111, and the upper connecting end 27 is exposed out of the through hole 117 of the main body 111, so as to facilitate connection between the expansion card assembly 22 and an external device.
In addition, as shown in fig. 3B, since the connection end 26 of the expansion card assembly 22 is inserted into the through hole 113 of the main body 111, the connection end has a limiting effect, and limits the extent of the expansion card housing 100 moving left and right relative to the expansion card assembly 22, so as to prevent the expansion card housing 100 from coming off. In addition, in the embodiment, the expansion card housing 100 abuts against the heat sink 28 and the expansion card body 24, so that the expansion card housing 100 does not sag in appearance, and besides the appearance is attractive, the amplitude of the forward and backward movement of the expansion card housing 100 relative to the expansion card assembly 22 can be limited, and the probability of the expansion card housing 100 separating from the expansion card assembly 22 can be reduced.
In the present embodiment, the thin plate 110 of the expansion card casing 100 is made of a plastic plate (e.g., Mylar), and a desired contour is cut on the thin plate 110 by a numerical control machine, and the folding line 112 is cut in advance. During assembly, the sheet 110 is bent along the fold line 112, the expansion card assembly 22 is wrapped, and the hook 120 is inserted into the hole 114 to complete the assembly. Because no additional tool is needed, the effect of quick assembly and disassembly can be achieved.
In addition, the expansion card casing 100 is made of the thin plate 110, so that the mold opening is not needed, the material itself is low, and the cost can be saved. In addition, the expansion card housing 100 can adjust the size of the thin plate 110 and the position of the folding line 112 according to the requirement, so that the expansion card assembly 22 with different sizes can be obtained. Specifically, if the heat sink 28 of the expansion card assembly 22 is not required and needs to be replaced with a larger heat sink 28, the designer can quickly fold the three-dimensional structure 115 of the new heat sink 28 by simply manufacturing the size of the expansion card housing 100 with the new size corresponding to the volume of the new heat sink 28 and pre-cutting the corresponding fold line 112.
It should be noted that the expansion card module 20 of the present embodiment may not have the fan 16, and the expansion card housing 100 is directly covered outside the expansion card body 24 and the heat sink 28, so as to dissipate heat in a passive manner. As shown in fig. 4, the three-dimensional structure 115 of the expansion card housing 100 includes two opposite openings 116, and the three-dimensional structure 115 can cover the expansion card assembly 22 (fig. 2). Airflow may flow from one of the two openings 116 of the volumetric structure 115 through the expansion card assembly 22 within the volumetric structure 115 and out the other of the two openings 116. Therefore, the expansion card housing 100 not only has the function of protecting the expansion card assembly 22, but also has the function of guiding air flow to pass through the expansion card assembly 22 inside, and particularly, the air flow is guided to pass through the heat sink of the expansion card assembly 22 for heat dissipation.
Fig. 5 is a schematic diagram illustrating an expansion card module according to an embodiment of the invention being mounted on a motherboard. Fig. 6 is a schematic diagram of a server in accordance with an embodiment of the present invention. Referring to fig. 5 and 6, the server 10 (fig. 6) of the present embodiment includes a main board 12, a fan 16 (fig. 6) and a plurality of expansion card modules 20. The expansion card modules 20 are disposed on the motherboard 12, and the fan 16 is disposed on the front side of the motherboard 12 and on one side of the expansion card modules 20. In the present embodiment, the fan 16 faces one of the openings 116 (fig. 4) of the expansion card housing 100 (fig. 4). The wind scoops 17 may be located between the fan 16 and the expansion card housing 100 to guide the wind blown by the fan 16 into the expansion card housing 100 to sufficiently pass through the expansion card assembly 22 (fig. 2) to cool the expansion card assembly 22 (fig. 2).
Generally, the server 10 utilizes a large number of fans 16 to dissipate heat, so the expansion card module 20 of the present embodiment is particularly suitable for being disposed in the server 10, and the fan 16 of the server 10 cooperates with the expansion card housing 100 with the wind guiding function to dissipate heat for the expansion card assembly 22. Since the expansion card module 20 may not have the fan 16, the thickness of the expansion card module 20 may be further reduced. In this way, the expansion card modules 20 can be inserted into a plurality of slots (not shown) on the motherboard 12, so as to avoid the situation that the expansion card modules cannot be installed on the slots because the expansion card modules occupy the space above some slots due to their excessive thickness.
In summary, the expansion card housing of the present invention is made of a thin plate, the main body of the thin plate includes a plurality of folding lines, the thin plate is bent along the folding lines, and the hooks of the thin plate are fastened to the fastening holes of the main body, so as to form a three-dimensional structure capable of covering the expansion card assembly. The expansion card shell can be fixed only by buckling the hook into the clamping hole, and can achieve the effect of quick assembly and disassembly without using additional tools. In addition, the expansion card shell of the invention is made by a thin plate, so that the cost can be saved without opening a die. In addition, the expansion card shell can adjust the size of the thin plate and the position of the folding line according to requirements, and can be used for expansion card components with different sizes. Furthermore, the three-dimensional structure of the expansion card shell comprises two opposite openings, and the airflow can flow through the expansion card assembly in the three-dimensional structure from one of the two openings of the three-dimensional structure and flow out from the other of the two openings. Therefore, the expansion card housing of the present invention not only has the function of protecting the expansion card assembly, but also can be used as a wind scooper to guide the airflow to flow through the expansion card assembly inside.

Claims (12)

1. An expansion card shell, suitable for being installed in an expansion card assembly, the expansion card assembly including a connection end, the expansion card shell comprising:
a thin plate, which comprises a main body and a hook connected with the main body, wherein the main body comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the hook, the thin plate is bent along the folding lines and the hook is buckled in the clamping hole to form a three-dimensional structure, the three-dimensional structure comprises two opposite openings,
the three-dimensional structure is suitable for coating the expansion card component, the connecting end of the expansion card component is suitable for penetrating out of the through hole of the main body, and the airflow is suitable for flowing through the expansion card component in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.
2. The expansion card housing of claim 1, wherein the main body is integrated with the hook.
3. The expansion card housing as claimed in claim 1, wherein the hook comprises two sub-hook portions having a gap therebetween, the maximum common width of the two sub-hook portions is greater than the width of the card hole, the width of the sub-hook portions is less than 1/2 of the width of the card hole, the two sub-hook portions are pressed by the edge of the main body beside the card hole to approach each other during the insertion of the hook into the card hole, pass through the card hole, and recover after passing through the card hole.
4. An expansion card module, comprising:
an expansion card assembly including a connection end; and
an expansion card housing detachably enclosing the expansion card assembly, comprising:
the sheet comprises a main body and a clamping hook connected with the main body, wherein the main body comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the clamping hook;
the three-dimensional structure covers the expansion card component, the connecting end of the expansion card component penetrates through the through hole of the main body, and air flow is suitable for flowing through the expansion card component in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.
5. The expansion card module of claim 4, wherein the expansion card assembly comprises an expansion card body and a heat sink disposed on the expansion card body, and the three-dimensional structure abuts against the heat sink and the expansion card body.
6. The expansion card module of claim 4, wherein the main body is integrated with the hook.
7. The expansion card module as claimed in claim 4, wherein the hook comprises two sub-hook portions having a gap therebetween, the maximum common width of the two sub-hook portions is greater than the width of the card hole, the width of the sub-hook portions is less than 1/2 of the width of the card hole, the two sub-hook portions are pressed by the edge of the main body beside the card hole to approach each other during the insertion of the hook into the card hole, pass through the card hole, and recover after passing through the card hole.
8. A server, comprising:
a main board;
a fan, which is configured on one side of the mainboard; and
an expansion card module, comprising:
an expansion card assembly including a connection end, wherein the connection end is arranged on the motherboard in a pluggable manner; and
an expansion card housing detachably enclosing the expansion card assembly, comprising:
the sheet comprises a main body and a clamping hook connected with the main body, wherein the main body comprises a plurality of folding lines, a through hole and a clamping hole corresponding to the clamping hook;
the three-dimensional structure covers the expansion card component, the connecting end of the expansion card component penetrates through the through hole of the main body, and the airflow blown out by the fan is suitable for flowing through the expansion card component in the three-dimensional structure from one of the two openings of the three-dimensional structure and flowing out from the other of the two openings.
9. The server according to claim 8, wherein the fan is directed toward one of the two openings of the three-dimensional structure.
10. The server according to claim 8, wherein the expansion card assembly comprises an expansion card body and a heat sink disposed on the expansion card body, and the three-dimensional structure abuts against the heat sink and the expansion card body.
11. The server according to claim 8, wherein the body is integral with the hook.
12. The server according to claim 8, wherein the hook comprises two sub-hook portions having a gap therebetween, a maximum common width of the two sub-hook portions is greater than a width of the card hole, the width of the sub-hook portions is less than 1/2 of the width of the card hole, the two sub-hook portions are pressed by an edge of the main body beside the card hole to approach each other during the insertion of the hook into the card hole, pass through the card hole, and are restored after passing through the card hole.
CN202011179247.6A 2020-10-29 2020-10-29 Expansion card shell, expansion card module and server Pending CN114428539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011179247.6A CN114428539A (en) 2020-10-29 2020-10-29 Expansion card shell, expansion card module and server

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011179247.6A CN114428539A (en) 2020-10-29 2020-10-29 Expansion card shell, expansion card module and server

Publications (1)

Publication Number Publication Date
CN114428539A true CN114428539A (en) 2022-05-03

Family

ID=81310359

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011179247.6A Pending CN114428539A (en) 2020-10-29 2020-10-29 Expansion card shell, expansion card module and server

Country Status (1)

Country Link
CN (1) CN114428539A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1239327A (en) * 1998-06-12 1999-12-22 日本电气株式会社 Heat sink and memory module with heat sink
TW456601U (en) * 2000-10-04 2001-09-21 Molex Inc Structure for fixing connector shell
TWM300870U (en) * 2005-10-25 2006-11-11 Wan-Chien Chang Memory heat-dissipating clip and assembly jig
CN1949131A (en) * 2005-10-12 2007-04-18 光宝科技股份有限公司 Fixing device for extending card
CN106462200A (en) * 2014-06-09 2017-02-22 戴尔产品有限公司 Compute device casing that doubles as packaging and shipping container
CN208434068U (en) * 2018-07-27 2019-01-25 佛山市容讯科技有限公司 Interchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1239327A (en) * 1998-06-12 1999-12-22 日本电气株式会社 Heat sink and memory module with heat sink
TW456601U (en) * 2000-10-04 2001-09-21 Molex Inc Structure for fixing connector shell
CN1949131A (en) * 2005-10-12 2007-04-18 光宝科技股份有限公司 Fixing device for extending card
TWM300870U (en) * 2005-10-25 2006-11-11 Wan-Chien Chang Memory heat-dissipating clip and assembly jig
CN106462200A (en) * 2014-06-09 2017-02-22 戴尔产品有限公司 Compute device casing that doubles as packaging and shipping container
CN208434068U (en) * 2018-07-27 2019-01-25 佛山市容讯科技有限公司 Interchanger

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