Electronic devices and fixed structures

The fixing structure with a bracket and rotatable screw simplifies the handling of screws in narrow spaces, ensuring secure attachment of electronic modules to a substrate, enhancing assembly efficiency.

JP2026078775AActive Publication Date: 2026-05-15LENOVO (SINGAPORE) PTE LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
LENOVO (SINGAPORE) PTE LTD
Filing Date
2024-10-29
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Screws used to fix electronic modules to a substrate are difficult to handle in narrow spaces within electronic devices due to their small size.

Method used

A fixing structure comprising a bracket along the edge of the electronic module, a rotatable screw, and a sheet protruding from the bracket, which facilitates easy handling and prevents the screw from falling out or rotating during assembly.

Benefits of technology

The fixing structure allows for easy handling and secure attachment of electronic modules to a substrate, even in confined spaces, by providing a stable grip and preventing rotation of the screw, thus simplifying the assembly process.

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Abstract

The present invention provides electronic equipment and a fixing structure that facilitates the handling of screws used to secure electronic modules to a circuit board. [Solution] The fixing structure 30 fixes the communication module 26 to the substrate 21 and includes a bracket 40 provided along the edge forming one end of the electronic module 26, a screw 41 rotatably provided with respect to the bracket 40 and fixing the end of the communication module 26 to the substrate 21, and a sheet 42A protruding from the bracket 40 on the opposite side from the communication module 26. Terminal blocks 35a to 35f are formed along the edge of the communication module 26 and detachable shield wires 36a to 36d are connected to them. The sheet 42A is transparent and has a matching symbol 45 that can be matched with the shield wires 36a to 36d at a position that overlaps with the shield wires 36a to 36d.
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Description

Technical Field

[0001] The present invention relates to an electronic device including a substrate and an electronic module fixed to the substrate, and a fixing structure for fixing the electronic module to the substrate.

Background Art

[0002] In an electronic device such as a notebook PC, a detachable electronic module may be provided on a substrate. One end of the electronic module in the electronic device described in Patent Document 1 is connected to a connector mounted on the substrate, and the other end is fixed to the substrate with screws. Such an electronic module can be replaced by removing the screws.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, since such screws for fixing are small, they are difficult to handle in a narrow space inside the housing.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide an electronic device and a fixing structure in which it is easy to handle screws for fixing an electronic module to a substrate.

Means for Solving the Problems

[0006] To solve the above-mentioned problems and achieve the objective, an electronic device according to a first aspect of the present invention is an electronic device comprising a substrate and an electronic module fixed to the substrate, the electronic device comprising: a bracket provided along an edge forming one end of the electronic module; a screw rotatably provided with respect to the bracket and fixing the edge of the electronic module to the substrate; and a sheet protruding from the bracket on the side opposite to the electronic module.

[0007] A fixing structure according to a second aspect of the present invention is a fixing structure for fixing an electronic module to a substrate, comprising: a bracket provided along an edge forming one end of the electronic module; a screw rotatably provided with respect to the bracket and fixing the edge of the electronic module to the substrate; and a sheet protruding from the bracket on the side opposite to the electronic module. [Effects of the Invention]

[0008] According to the above embodiment of the present invention, the handling of screws for fixing the electronic module to the substrate is easy. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a top-down view of an electronic device according to one embodiment. [Figure 2] Figure 2 is a schematic bottom view showing the internal structure of the enclosure. [Figure 3] Figure 3 is an exploded perspective view of a fixed structure in an electronic device. [Figure 4] Figure 4 is a perspective view of the fixing components and their surrounding areas in a fixed structure, seen from an oblique angle above. [Figure 5] Figure 5 is an exploded perspective view of the fixed components. [Figure 6] Figure 6 is a partially enlarged perspective view of the fixing component, seen from a diagonal angle below. [Figure 7] Figure 7 is a cross-sectional side view of the fixing component and its surrounding area in a fixed structure. [Figure 8]Figure 8 is a plan view of the fixing components in the fixed structure. [Figure 9] Figure 9 is a perspective view of the fixing component according to the second embodiment. [Figure 10] Figure 10 is an exploded perspective view of the fixing component according to the second embodiment. [Figure 11] Figure 11 is a perspective view of a fixed component according to the third embodiment. [Figure 12] Figure 12 is an exploded perspective view of the fixing component according to the third embodiment. [Figure 13] Figure 13 is a perspective view of the fixing component according to the fourth embodiment. [Figure 14] Figure 14 is an exploded perspective view of the fixed component according to the fourth embodiment. [Modes for carrying out the invention]

[0010] Embodiments of the electronic device according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to these embodiments.

[0011] Figure 1 is a top-down view of an electronic device 10 according to one embodiment. As shown in Figure 1, the electronic device 10 comprises a housing 12, a display housing 14, and a hinge 16. The electronic device 10 according to this embodiment is a clamshell-type notebook PC in which the housing 12 and the display housing 14 are connected by a hinge 16 so as to be rotatable relative to each other. The present invention can be applied to various information devices other than notebook PCs, such as desktop PCs, tablet PCs, mobile phones, smartphones, portable game consoles, and electronic organizers.

[0012] The housing 12 is a flat box-shaped housing. The housing 12 is composed of a cover material 12a on the operation surface side and a cover material (conductive cover) 12b on the bottom surface side. The cover material 12a forms the upper surface and the four peripheral side surfaces of the housing 12. The cover material 12b is a cover plate that closes the opening on the lower surface side of the cover material 12a and forms the lower surface of the housing 12. The cover material 12b in this embodiment is made of a material such as metal, or a conductive paint or a conductive sheet is provided on the inner surface, and it has conductivity as a whole. When the electronic device 10 is assembled, the cover material 12b is electrically connected to the ground of the substrate 21. A keyboard 18 and a touch pad 19 are provided on the upper surface of the housing 12. In the following description, directions are defined based on the fixing structure 30 described later. When the housing 12 is in use, the side of the cover material 12b is upward and the side of the cover material 12a is downward, which is opposite to the normal placement state. The same applies to the left and right directions. Regarding the front and rear, the side closer to the user is the front and the side farther away is the rear when viewed from the user who uses it.

[0013] The display housing 14 is a flat box-shaped housing thinner than the housing 12. A display 20 is provided on the front surface of the display housing 14. The display 20 is, for example, a liquid crystal display. The hinge 16 connects between the rear edge of the housing 12 and the lower edge of the display housing 14. For example, a pair of left and right hinges 16 are provided.

[0014] FIG. 2 is a bottom view schematically showing the internal structure of the housing 12. As shown in FIG. 2, inside the housing 12, a substrate 21, a battery device 22, left and right speakers 23R, 23L, a cooling module 24, and various electronic components and mechanical components are covered and housed by the cover materials 12a and 12b.

[0015] The substrate 21 is the main substrate of the electronic device 10, occupying approximately the rear half in the housing 12, and electronic components such as the CPU 21a, and connectors 21b, 21c, etc. are mounted thereon. The CPU 21a controls the entire electronic device 10. On the substrate 21, a communication module (electronic module) 26, a memory module (electronic module) 27, etc. are further provided via the connectors 21b, 21c. The communication module 26 is, for example, a WWAN (Wireless Wan) module compatible with 5G. The memory module 27 is, for example, an SSD (Solid State Drive). The communication module 26 is a rectangle that is slightly longer in the horizontal direction. The memory module 27 is a rectangle that is even longer in the horizontal direction. The communication module 26 and the memory module 27 may be replaced for the purpose of performance improvement, etc.

[0016] The battery device 22 is a secondary battery that serves as the power source of the electronic device 10 and occupies approximately the front half in the housing 12. The speakers 23R, 23L are at positions separated left and right within the housing 12, and are arranged in the space secured between the substrate 21 and the battery device 22. The cooling module 24 is for cooling heat-generating components such as the CPU 21a, and has fans 28R, 28L arranged separately left and right, and a heat pipe 24a that receives heat from the CPU 21a and conducts heat transfer to the fan 28. The communication module 26 is provided between the speaker 23R and the fan 28R. The memory module 27 is provided between the speaker 23L and the fan 28L. The fans 28R, 28L are relatively large to ensure heat dissipation performance. The speakers 23R, 23L are relatively large to improve sound quality. Therefore, there is not much spatial margin between the speaker 23 and the fan 28, and due to the relationship with other mounted components, the communication module 26 and the memory module 27 are arranged in a relatively cramped space.

[0017] FIG. 3 is an exploded perspective view of a portion of the fixing structure 30 in the electronic device 10. The fixing structure 30 is for fixing the communication module 26 to the substrate 21, and includes fixing parts 31A, bosses 34, and the above-mentioned connector 21b.

[0018] The connector 21b is a type of card edge socket mounted on the upper surface of the circuit board 21, with a slot 21ba formed on its right side. The boss 34 is for securing the communication module 26 and is located slightly to the right of the connector 21b. The boss 34 is a stepped cylindrical shape consisting of a base 34a and a projection 34b. The hollow portion of the projection 34b has a female thread formed therein.

[0019] The communication module 26 has a structure in which a flat module housing 26b is provided on the upper surface of a module board 26a. The front-to-back width of the module board 26a and the module housing 26b are equal. The module board 26a is slightly wider than the module housing 26b, with a portion protruding to the right forming a terminal board 26c and a portion protruding to the left forming a connection terminal 26d. The connection terminal 26d is inserted into the slot 21ba of the connector 21b. A semicircular notch 26e is provided in the center of the terminal board 26c in the front-to-back direction, into which a protruding portion 34b of the boss 34 fits. The periphery of the semicircular notch 26e on the terminal board 26c rests on the base 34a of the boss 34.

[0020] On the terminal board 26c, a total of six terminal blocks 35a, 35b, 35c, 35d, 35e, and 35f are formed in this order, three on each side of the semicircular notch 26e. Detachable shielded wires (electric wires) are connected to two or more of the terminal blocks. In this case, shielded wire 36a is connected to terminal block 35a, shielded wire 36b is connected to terminal block 35b, shielded wire 36c is connected to terminal block 35c, and shielded wire 36d is connected to terminal block 35d. The heads 37 of the shielded wires 36a to 36d are connected to terminal blocks 35a to 35d and extend to the right. Note that in this case, no electric wires are connected to terminal blocks 35e and 35f, so they may be omitted.

[0021] Shielded wires 36a to 36d have a signal conductor at the center of the axis, a shield is provided via an insulating material, and a sheath further covers the periphery. In addition, the heads 37 that connect to 35a, 35b, 35c, and 35d of shielded wires 36a to 36d are exposed and are electrically connected to the shield. Shielded wire 36a is yellow, shielded wire 36b is white, shielded wire 36c is black, and shielded wire 36d is blue. In Figures 3 and 8, light dots represent yellow, white outlines represent white, solid black represents black, and dark dots represent blue.

[0022] Let me explain the fixing component 31A. Figure 4 is a perspective view of the fixing component 31A and its surrounding area in the fixing structure 30, viewed from diagonally above. Figure 5 is an exploded perspective view of the fixing component 31A. Figure 6 is a partially enlarged perspective view of the fixing component 31A, viewed from diagonally below. Figure 7 is a cross-sectional side view of the fixing component 31A and its surrounding area in the fixing structure 30.

[0023] The fixing component 31A includes a bracket 40 provided along the edge 26f forming one end of the communication module 26, a screw 41 for fixing the terminal plate 26c, which is the end of the communication module 26, to the substrate 21, a flexible sheet 42A protruding to the right from the bracket 40, and two thin conductive sponges (first conductive elastic bodies) 43. The size of the screw 41 is, for example, M2.0, and because it is small, skill is required to grasp and work with it by hand.

[0024] The bracket 40 is generally an elongated plate shape in the front-to-back direction, and has two flat parts 40a, a recess 40b formed between them, a bent part 40c that protrudes downward on both sides in the front-to-back direction, and a small projection 40d that protrudes to the right from the recess 40b. The bracket 40 is made of a metal plate such as stainless steel (conductive material) with a thickness of about 0.6 mm and has sufficient strength. The front-to-back width of the bracket 40 and the communication module 26 are equal.

[0025] One side of the flat section 40a covers terminal blocks 35a to 35c, and the other side covers terminal blocks 35d to 35f. The recessed section 40b is approximately square and slightly lower than the flat section 40a. A screw hole 40ba is formed in the center of the recessed section 40b through which a screw 41 is inserted. The screw hole 40ba is larger in diameter than the threaded portion of the screw 41, and the inserted screw 41 is rotatable.

[0026] The bent portion 40c is divided into a terminal board mounting portion 40ca on the left and a protruding portion 40cb on the right. The terminal board mounting portion 40ca is the part that is placed on the front and rear edges of the terminal board 26c and has the same width as the terminal block 35c. The terminal board mounting portion 40ca has an appropriate height so that the flat portion 40a does not directly contact the head portion 37 that is connected to the terminal block 35c. The protruding portion 40cb protrudes slightly below the terminal board mounting portion 40ca and contacts the right end surface at the front and rear of the terminal board 26c to prevent the bracket 40 from rotating.

[0027] The sheet 42A is made of a thin, flexible resin material and has a gripping portion 42a and a connecting portion 42b. The gripping portion 42a protrudes to the right of the bracket 40, that is, on the opposite side from the communication module 26. The width of the gripping portion 42a is formed to be sufficient for grasping with a hand (see hand H1 shown by dashed line in Figure 4), for example, about 15 mm. The front-to-back width of the gripping portion 42a is slightly smaller than the bracket 40. A gentle slope 42aa is formed on the front edge of the gripping portion 42a to avoid interference with the speaker 23R (see Figure 2). A small notch 42ab is formed at the front-to-back boundary between the gripping portion 42a and the connecting portion 42b, making the area between the gripping portion 42 and the connecting portion 42b more flexible.

[0028] The connecting portion 42b is the part that connects to the bracket 40, and protrudes from the front-rear center of the gripping portion 42a toward the left via a small crank-shaped stepped portion 42c, and abuts against the lower surface of the recess 40b. The step of the stepped portion 42c and the depth of the recess 40b are approximately the same, and the gripping portion 42a is set at the same height as the flat portion 40a. A small rectangular anti-rotation hole 42ca is formed in the stepped portion 42c, into which the projection 40d is fitted. The anti-rotation hole 42ca is sized to fit the projection 40d just right. Since the seat 42A is fixed to the bracket 40 by a screw 41 at the connecting portion 42b, the screw 41 would otherwise become the center of rotation, but relative rotation is prevented by the projection 40d fitting into the anti-rotation hole 42ca. When a rotational force is applied to the seat 42A, it may temporarily bend slightly. Even if the sheet 42A bends considerably, the projection 40d will not come loose because the anti-rotation hole 42ca is fitted in sufficiently deeply, and it will return to its original state when the rotational force is released. Therefore, it is easy to handle even for inexperienced workers.

[0029] The connecting portion 42b and the recess 40b are almost identical in shape. A screw hole 42ba is formed in the center of the connecting portion 42b. The male threaded portion of the screw 41 is screwed into the screw hole 42ba in the connecting portion 42b. The pilot hole for forming the screw hole 42ba is formed to be slightly smaller in diameter than the male threaded portion of the screw 41, and the male threaded portion is screwed in and bites into the pilot hole in a tapping manner. Therefore, the sheet 42A will not fall off the bracket 40 and the screw 41 in principle; in other words, the connecting portion 42b holds the screw 41 in a way that prevents it from falling off the bracket 40. The screw 41 fall-off prevention structure is not limited to this.

[0030] The conductive sponge 43 has almost the same shape as the flat portion 40a in plan view and is fixed to the lower surface of the flat portion 40a with a conductive adhesive. The conductive sponge 43 elastically contacts each head portion 37. A conductive sponge (second conductive elastic body) 44 is provided on the inner surface of the cover material 12b (see Figures 2 and 7) and is designed to elastically contact the bracket 40. Therefore, the head portion 37 is electrically connected to the cover material 12b via the conductive sponge 43, bracket 40, and conductive sponge 44, and the shielding function of the shield wires 36a to 36d is achieved.

[0031] The recess 40b has several functions. The presence of the recess 40b raises the flat portion 40a to a relatively higher position, ensuring that there is room to interpose the conductive sponge 43 without interfering with the head 37. The presence of the recess 40b allows the head of the screw 41 to be positioned lower than the flat portion 40a. The recess 40b functions as a washer for the screw 41. The recess 40b corresponds to the stepped portion 42c of the sheet 42, and the projection 40d protruding to the right from the recess 40b fits into the anti-rotation hole 42ca of the stepped portion 42c, thus providing an anti-rotation effect.

[0032] Figure 8 is a plan view of the fixing component 31A in the fixing structure 30. The gripping portion 42a of the sheet 42A is transparent (including translucent), allowing the position and color of the underlying shield wires 36a to 36d to be visible. The gripping portion 42a is marked with matching symbols 45 that can be matched with the shield wires 36a to 36d, at a position that overlaps with the shield wires 36a to 36d. These matching symbols 45 are provided in multiple rows (in this case, three rows) along with symbols 46 indicating the type of communication module 26, depending on the type of module.

[0033] There is a distinction between 5G and 4G types of communication modules 26. The communication module 26 in this embodiment is 5G compatible, and the upper section 45a, marked with the symbol 46 "5G", corresponds to this. The upper section 45a has matching symbols 45aa corresponding to shield wire 36a, 45ab corresponding to shield wire 36b, 45ac corresponding to shield wire 36c, and 45ad corresponding to shield wire 36d, each marked with a circle of the same color in a position that overlaps with the respective shield wire. In other words, the matching symbol 45 can be used to match and identify the corresponding shield wire by its color, thus avoiding connection errors and facilitating visual inspection.

[0034] In the middle section 45b and the lower section 45c, the symbol 46 is marked as "4G," which is due to differences in specifications depending on the country of application. The middle section 45b is for countries that use four shielded wires, and four identification symbols 45ba, 45bb, 45bc, and 45bd are marked in positions that overlap with the corresponding shielded wires. The lower section 45c is for countries that use two shielded wires, and two identification symbols 45ca and 45cb are marked in positions that overlap with the corresponding shielded wires. The means of identifying the shielded wires using the identification symbols 45 are not limited to color, but may also be patterns or letters (for example, the word "white"). The gripping section 42a has a width suitable for gripping, and approximately three rows of identification symbols 45 can be provided.

[0035] In such electronic equipment 10 and fixing structure 30, the bracket 40 is provided along the edge 26f of the communication module 26, so it has a certain length and size, and there is no concern that it will be lost in the confined space inside the housing 12. Similarly, the screws 41 for fixing the communication module 26 to the circuit board 21 are provided in a way that prevents them from falling out of the bracket 40, so there is no concern that they will be lost.

[0036] The bracket 40 is fitted with a sheet 42A of an appropriate size for gripping, and by gripping it as shown by hand H1 in Figure 4, it can be easily handled even in confined spaces, making it easier to screw in the screw 41 with the screwdriver D. Furthermore, in places with ample space, gripping the bracket 40 as shown by hand H2 in Figure 4 provides greater stability to the screw 41, making the work easier. The bracket 40 has sufficient strength and will not deform during the screwing of the screw 41.

[0037] From the bracket 40, the sheet 42A protrudes to the right, opposite to the communication module 26, allowing for an intuitive understanding of the correct orientation of the bracket 40 and preventing interference between the protruding portion 40cb and the module housing 26b due to reverse assembly. During the screwing of the screw 41, the bracket 40 is prevented from rotating by the protruding portion 40cb. Even after the screw 41 has been screwed in, if the worker inadvertently applies rotational force to the bracket 40, the protruding portion 40cb prevents it from rotating. Furthermore, since the sheet 42A is prevented from rotating by the projection 40d, it is maintained in the correct orientation, allowing for correct verification of the shield wire using the matching symbol 45. The connection portion 42b of the sheet 42A is screwed with the male thread portion of the screw 41, which also serves as a means to prevent it from falling out, making it rational. The fixing structure 30 may also be applied to other electronic modules such as the memory module 27.

[0038] Next, other embodiments applicable in place of the fixing component 31A will be described. In the following embodiments, components similar to those of the fixing component 31A are denoted by the same reference numerals, and their detailed descriptions are omitted.

[0039] Figure 9 is a perspective view of the fixing part 31B according to the second embodiment. Figure 10 is an exploded perspective view of the fixing part 31B. In the fixing part 31B, sheet 42B is used instead of sheet 42A described above. Sheet 42B has protrusions 42d formed on both the front and rear ends of the gripping part 42a facing the bracket 40, and the front and rear width including the protrusions 42d is equal to that of the bracket 40. In other words, the sheet 42B prevents relative rotation by having the two protrusions 42d each abut against the bent part 40c of the bracket 40. The anti-rotation mechanism in sheet 42B is not limited to the shape of the protrusions; it is sufficient if a part of it abuts against the bent part 40c. Sheet 42B is easy to mold because it does not have the stepped part 42c or anti-rotation hole 42ca described above. The bracket in the second embodiment does not have the protruding piece 40d.

[0040] Figure 11 is a perspective view of the fixing part 31C according to the third embodiment. Figure 12 is an exploded perspective view of the fixing part 31C. In the fixing part 31C, sheet 42C is used in place of the sheet 42A described above. Sheet 42C is provided with two connecting parts 42e. While the connecting part 42b in sheet 42A is located in a position that overlaps with the recess 40b, the two connecting parts 42e each overlap with the flat part 40a. The left and right widths of the connecting parts 42e are set to be appropriately long, with the right half 42ea in contact with the upper surface of the flat part 40a, and the left half 42eb folded back and in contact with the lower surface, and each is fixed with adhesive tape to prevent relative rotation. In sheet 42C, since the connecting parts 42e are fixed in contact with the flat part 40a over a wide area, the gripping part 42a becomes easier to grip stably and also provides an anti-rotation effect. A retaining washer 47 is attached to the lower side of the recess 40b of the screw 41, preventing it from falling out. The fixing part 31C is not provided with a conductive sponge 43.

[0041] Figure 13 is a perspective view of the fixing part 31D according to the fourth embodiment. Figure 14 is an exploded perspective view of the fixing part 31D. In the fixing part 31D, sheet 42D is used instead of sheet 42A described above. Sheet 42D is provided with two connecting parts 42f. The connecting parts 42f protrude to the left from the gripping part 42a, similar to the connecting part 42e described above, but are slightly shorter. In the bracket 40 of the fourth embodiment, a slit 40e is formed in each flat part 40a along the front-rear direction. The right half 42fa of the connecting part 42f is in contact with the upper surface to the right of the slit 40e of the flat part 40a, and the left half 42eb is folded back through the slit 40e and is in contact with the lower surface to the right of the slit 40e, and they are fixed with adhesive tape to prevent relative rotation. The conductive sponge 48 applied to the fixing part 31D is narrower in width than the conductive sponge 43 described above and is attached to the lower surface to the left of the slit 40e. In the fixing component 31D, the connecting portion 42f is fixed to the bracket 40 over a moderately large area, which stabilizes the gripping portion 42a, and the conductive sponge 48 performs the same function as the conductive sponge 43.

[0042] The present invention is not limited to the embodiments described above, and can be freely modified without departing from the spirit of the invention. [Explanation of Symbols]

[0043] 10 Electronic equipment 12 cabinets 12b Cover material (conductive cover) 16 hinges 21 circuit boards 26. Communication Module (Electronic Module) 26a Module board 26b Module enclosure 26c terminal board 26d Connection terminal 26e Semicircular notch 30 Fixed structure 31A, 31B, 31C, 31D Fixing parts 34 Boss 35a,35b,35c,35d,35e,35f terminal block 36a, 36b, 36c, 36d Shielded wire 37 Head 40 brackets 40ba screw hole 40c bent part 40ca terminal board mounting area 40d protrusion 41 screws 42A, 42B, 42C, 42D seats 42a Gripping part 42b, 42e, 42f connection section 42ba screw hole 42c Step section 42ca anti-rotation hole 42d protrusion 43,48 Conductive sponge (first conductive elastic body) 44. Conductive sponge (second conductive elastic body) 45,45aa,45ab,45ac,45ad,45ba,45bb,45bc,45bd,45ca,45cb Matching symbols

Claims

1. An electronic device comprising a substrate and an electronic module fixed to the substrate, A bracket provided along the edge forming one end of the electronic module, A screw rotatably mounted on the bracket and used to fix the edge of the electronic module to the substrate, A sheet protruding from the bracket on the opposite side from the electronic module, has An electronic device characterized by the following features.

2. In the electronic device described in claim 1, The aforementioned electronic module has a plurality of terminal blocks formed along its edge. At least two of the multiple terminal blocks are connected to detachable wires. The sheet is transparent, and a matching symbol that can be identified with the electric wire is provided at a position that overlaps with the electric wire. An electronic device characterized by the following features.

3. In the electronic device according to claim 2, The sheet is provided with symbols indicating the type of electronic module and matching symbols in multiple rows, depending on the type of electronic module. An electronic device characterized by the following features.

4. In the electronic device according to claim 2, The substrate and the electronic module are covered by a conductive cover, The aforementioned bracket is made of a conductive material, The aforementioned wire is a shielded wire, and the end that connects to the terminal block is electrically connected to the shield. A first conductive elastic body is sandwiched between the head and the bracket, A second conductive elastic body is sandwiched between the bracket and the conductive cover, has An electronic device characterized by the following features.

5. In the electronic device described in claim 1, Relative rotation between the bracket and the seat is prevented. An electronic device characterized by the following features.

6. In the electronic device according to claim 5, The aforementioned sheet is A gripping portion protruding from the bracket on the side opposite to the electronic module, The connecting portion overlapping the aforementioned bracket, A stepped portion is provided between the gripping portion and the connecting portion, and a rotation-preventing hole is formed therein. It has, The bracket has a projection that protrudes on the side opposite to the electronic module, The projection fits into the anti-rotation hole, thereby preventing relative rotation between the bracket and the seat. An electronic device characterized by the following features.

7. In the electronic device described in claim 1, The male threaded portion of the screw is screwed into the threaded hole of the connecting portion of the seat that overlaps with the bracket. An electronic device characterized by the following features.

8. In the electronic device described in claim 1, The aforementioned electronic module is a communication module. An electronic device characterized by the following features.

9. A fixing structure for fixing an electronic module to a substrate, A bracket provided along the edge forming one end of the electronic module, A screw rotatably mounted on the bracket and used to fix the edge of the electronic module to the substrate, A sheet protruding from the bracket on the opposite side from the electronic module, has A fixed structure characterized by the following features.