electronic devices

Abstract

This invention relates to an electronic device, comprising a housing and a cover, wherein electronic components of the electronic device are housed within the housing, and the cover is capable of sealing the housing. According to the design of the invention, the housing has a first mating member, and the cover has a second mating member and a third mating member. In an unlocked state, the first mating member can be interconnected with the second or third mating member via their respective locking portions. In a locked state, the first mating member can be interconnected with the second and third mating members via the locking portions.

Description

Technical Field

[0001] The present invention relates to an electronic device, including a housing and a cover, wherein the electronic device is disposed within the housing and the cover is capable of sealing the housing. Background Technology

[0002] EMI standards are international standards developed by organizations such as the Radio Interference Association (RIA) to restrict the electromagnetic energy emitted or transmitted by electronic devices during operation. When designing electronic equipment, it is necessary to meet EMI standards to shield against electromagnetic interference. Electronic equipment typically requires a shield (such as a housing) to enclose components, circuits, assemblies, cables, or the entire system from interference sources. This is because the shield absorbs energy (eddy current loss), reflects energy (electromagnetic waves are reflected at the interface of the shield), and cancels energy (electromagnetic induction generates a reverse electromagnetic field on the shield, which can cancel out some of the interfering electromagnetic waves) from both external and internal sources such as wires, cables, components, circuits, or systems. Therefore, the shield has the function of reducing interference.

[0003] In existing technologies, the shielding of many electronic devices consists of a housing and a cover. The cover is fixedly connected to the housing of the electronic device by screws. For example, the technical solution in patent document KR102042145B1 relates to a temperature electronic device, in which the cover is fixedly connected to the housing of the electronic device by screws; patent document CN209085812U relates to a fiber optic unidirectional strain gauge electronic device for stress monitoring, in which the cover is also sealed to the housing by screws. The problem with this design is that when maintenance operations are required on the electronic device, the cover is not easy to open, and the assembly cost and component cost are relatively high, which does not meet the requirements of fully automated modern assembly processes. Summary of the Invention

[0004] Therefore, to solve the technical problems in the prior art, the present invention provides an electronic device that ensures electromagnetic protection and facilitates assembly and disassembly. This electronic device includes a housing and a cover, with the electronic components housed within the housing, and the cover capable of sealing the housing. According to the technical solution of the present invention, the housing has a first mating member, and the cover has a second mating member and a third mating member. In an unlocked state, the first mating member can be interconnected with the second or third mating member through their respective locking parts. In a locked state, the first mating member can be interconnected with the second and third mating members through their respective locking parts. The present invention uses a locking connection to replace the screw connection in the prior art. Compared to screw connections, the locking connection assembly process is simpler, and the first mating member is also easy to disassemble from the second and third mating members, facilitating operation of the internal electronic components.

[0005] According to a preferred embodiment of the present invention, in the locked state, the second and third mating parts have a spring force pointing away from the first mating part. In the locked state, the second and third mating parts of the cover are tightly pressed against the first mating part of the housing and are subjected to the spring force of the first mating part, thereby reducing the gap between the second and third mating parts and the first mating part.

[0006] According to a preferred embodiment of the present invention, the locking portion of the first mating member is designed as a protruding structure, and the locking portions of the second and third mating members are designed as snap-fit ​​structures extending toward the first mating member. A latch is provided on the snap-fit ​​structure. When the cover is connected to the housing, the protruding structure can be embedded into the latch, thereby forming a snap-fit ​​connection between the protruding structure and the snap-fit ​​structure, connecting the first mating member with the second and / or third mating members. Preferably, a pair of protruding structures and snap-fit ​​structures are provided on each side of the cover and the housing. Of course, more protruding structures and snap-fit ​​structures can also be provided. Furthermore, it is preferred that a bending portion is provided at the front end of the snap-fit ​​structure. This bending portion mainly has two functions: first, when the snap-fit ​​structure is guided to the protruding structure, it makes it easier for the front end of the snap-fit ​​structure to flip over the protruding structure so that the protruding structure can be embedded into the latch; second, when the snap-fit ​​structure needs to be disengaged from the protruding structure, it makes it easier for the snap-fit ​​structure to be manually pried off the protruding structure. Correspondingly, a guide slope can be provided on the side of the protruding structure facing the cover, making it easier for the snap-fit ​​structure to flip over the protruding structure when guided, so that the protruding structure can be embedded into the bayonet. Preferably, a curved portion is provided at the connection between the snap-fit ​​structure and the cover to prevent mismatch at the edges due to manufacturing tolerances when the cover is connected to the housing. Also preferably, a guide groove is provided on the housing to guide the movement of the snap-fit ​​structure, allowing for a more precise fit between the snap-fit ​​structure and the protruding structure.

[0007] According to a preferred embodiment of the invention, a bend line is provided on the cap, which reduces the size and length of the gap between the cap and the housing to meet EMI standards. This bend line causes the cap to appear as a zigzag line in a top view, bending towards the housing, thereby reducing the gap between the cap and the housing. Furthermore, the bend line increases the clamping force of the snap-fit ​​structure on the housing; the bend line gives the cap a curved shape, and this bending feature provides a clamping force for securing the cap to the housing. Preferably, the bend line is located in the center of the cap, and the direction of extension of the bend line is perpendicular to the direction of movement of the cap. It is also preferred that the bend line is formed by stamping. Both the cap and the housing are preferably made of metal, and the cap is preferably formed by stamping. The bend line can be stamped simultaneously during the stamping process, thereby simplifying the manufacturing process and reducing costs.

[0008] According to a preferred embodiment of the invention, the housing has a notch at one end facing the cover for placing wires, so as to facilitate the routing of wires from an electronic device disposed inside the housing. It is also preferred that a guide rail be provided along the path of the cover toward the housing to facilitate easier (especially in automated installation) connection between the cover and the housing.

[0009] In the above detailed description of at least one embodiment, it should be understood that numerous variations of the invention exist. It should also be understood that the at least one embodiment is merely an example and does not limit the scope of protection, application field, or structural design of the invention. More precisely, the embodiments are merely intended to provide technical guidance to those skilled in the art, and different arrangements and arbitrary combinations of the functions or components of the above embodiments are also within the scope of protection of the invention. Attached Figure Description

[0010] Figure 1 A perspective view showing a preferred embodiment of the electronic device according to the present invention;

[0011] Figure 2 A perspective view of the electronic device according to the present invention in a locked state is shown;

[0012] Figure 3 A top view of the electronic device according to the invention in its locked state is shown. Detailed Implementation

[0013] Figure 1 A preferred embodiment of the electronic device according to the present invention is shown. The electronic device includes a housing 1 and a cover 2. The electronic components of the electronic device are housed inside the housing 1, and the cover 2 can close the housing 1, so that the electronic components are in a closed environment. The cover 2 is removable, thereby enabling convenient installation, disassembly, and maintenance of the electronic device.

[0014] like Figure 1As shown, the housing 1 has a first mating part 1a, with protruding structures 4 on both sides of the first mating part 1a. The cover 2 has a second mating part 2a and a third mating part 2b, with snap-fit ​​structures 3 provided at corresponding positions on the second mating part 2a and the third mating part 2b, respectively. A latch 5 is provided at a corresponding position on the snap-fit ​​structure 3 for engaging with the protruding structures 4. When the cover 2 is connected to the housing 1, the protruding structures 4 extend into the latch 5, thereby achieving a snap-fit ​​connection between the cover 2 and the housing 1. In the locked state, the first mating part 1a can be snap-fitted with both the second mating part 2a and the third mating part 2b; in the unlocked state, the first mating part 1a can be snap-fitted with only the second mating part 2a or the third mating part 2b, or neither the first mating part 1a nor the second or third mating part, thus achieving a more flexible disassembly method for the cover.

[0015] In this embodiment, a guide groove 8 is provided at a corresponding position on the first mating part 1a of the housing 1, so that the snap-fit ​​structure 3 can be precisely snapped into the protruding structure 4 along a specific direction. An upwardly bent portion 6 is provided at the front end of the snap-fit ​​structure 3. This bent portion 6 has two main functions: first, when the snap-fit ​​structure 3 is guided to the protruding structure 4, it makes it easier for the snap-fit ​​structure 3 to flip over the protruding structure 4, thereby allowing the protruding structure 4 to embed into the bayonet 5; second, when the snap-fit ​​structure 3 is disengaged from the protruding structure 4, it makes it easier for the snap-fit ​​structure 3 to be manually pried away from the protruding structure 4. Correspondingly, a guide slope can also be provided on the side of the protruding structure 4 facing the snap-fit ​​structure 3 to facilitate the engagement of the snap-fit ​​structure 3 and the protruding structure 4. In this embodiment, only one protruding structure 4 is provided on each side of the housing 1, and a corresponding snap-fit ​​structure 3 is provided on each side of the cover 2. Alternatively, multiple paired snap-fit ​​structures 3 and protruding structures 4 can be provided according to the shape of the housing and actual needs. For example, snap-fit ​​structures 3 and protruding structures 4 can be provided at the four corners of the cover 2 and the corresponding positions of the housing 1, thereby making the connection between the cover 2 and the housing 1 more secure.

[0016] After the cap 2 and the housing 1 are assembled, due to manufacturing tolerances, there is a gap 12 between the cap 2 and the housing 1, such as... Figure 3 As shown. To meet EMI protection requirements, the gap size and length need to be minimized. In this embodiment, a bend 7 is provided in the middle of the cover 2. Figure 3 As shown, the bend line 7 makes the cover 2 appear as a bend in the top view, thereby reducing the size and length of the gap between the cover 2 and the housing 1.

[0017] Figure 2A perspective view of the cap 2 and housing 1 in the locked state is shown. As shown, the protruding structure 4 is embedded in the bayonet 5, thereby enabling the housing 1 and cap 2 to snap together. A guide rail 10 is provided on the path of the cap 2 moving towards the housing 1, facilitating precise connection between the cap 2 and the housing 1 along the guide rail 10. Especially in the case of automated assembly, the guide rail 10 can guide the cap 2 to move automatically towards the housing 1. In the locked state, the second mating part 2a and the third mating part 2b of the cap 2 have the following characteristics: Figure 2 The elastic force, indicated by the direction of the middle arrow, moves away from the first mating part 1a, thereby making the second mating part 2a and the third mating part 2b fit more tightly against the first mating part 1a or bringing the second mating part 2a and the third mating part 2b closer to the first mating part 1a, thus reducing the size and length of the gap between the cover 2 and the housing 1.

[0018] According to the above design of the present invention, the cap can be connected to the housing in the following steps:

[0019] 1. Move the cover 2 along the guide rail 10 until the bend line 7 contacts the housing 1;

[0020] 2. The bending feature of the cap 2 provides a clamping force for securing the cap 2 to the housing 1;

[0021] 3. Continue pushing the cover 2 toward the housing 1 until the protruding structure 4 is inserted into the snap-fit ​​structure 3.

[0022] It should be understood that while the foregoing description and accompanying drawings exemplify some embodiments of the invention, they are merely examples and in no way limit the scope of protection of the invention. Different variations of the embodiments are possible without departing from the scope of the claims and their related scope. In particular, variations not mentioned in the claims are derived from the description and drawings of the embodiments and their features. These features can also appear in ways different from the specific combinations disclosed herein. The mutual reference to multiple features of the invention in the same statements or in another context does not imply that these features can only appear in the specific disclosed combinations; instead, individual features can be removed or replaced from a plurality of such features without affecting the functionality of the invention.

[0023] List of reference numerals

[0024] 1. Shell

[0025] 1a First mating part

[0026] 2. Capping

[0027] 2a Second mating part

[0028] 2b Third mating part

[0029] 3. Snap-fit ​​structure

[0030] 4. Protruding structure

[0031] 5 checkpoints

[0032] 6. Bending section

[0033] 7. Zigzag lines

[0034] 8 guide slots

[0035] 9. Bend

[0036] 10 guide rails

[0037] 11 Notch

[0038] 12 gaps

Claims

1. An electronic device comprising a housing and a cover capable of shielding electromagnetic interference, wherein electronic components of the electronic device are housed within the housing, and the cover is capable of sealing the housing, wherein... The housing has a first mating member defining an opening, and the cover has a second mating member covering a portion of the opening and a third mating member covering the remaining portion of the opening. In the unlocked state, the first mating member can be interconnected with the second or third mating member through their respective locking parts. In the locked state, the first mating member can be interconnected with the second and third mating members through the locking parts. The second and third mating members are at an angle to each other, and a bend line is provided between the second and third mating members. The bend line can reduce the gap between the cover and the housing to improve the ability to shield electromagnetic interference.

2. The electronic device according to claim 1, characterized in that, In the locked state, the second mating member and the third mating member have a spring force pointing away from the first mating member.

3. The electronic device according to claim 1, characterized in that, The locking portion of the first mating component is designed as a protruding structure, and the locking portions of the second mating component and the third mating component are designed as snap-fit ​​structures extending toward the housing. A slot is provided on the snap-fit ​​structure, and when the first mating component is connected to the second mating component and / or the third mating component, the protruding structure can be embedded into the slot.

4. The electronic device according to claim 3, characterized in that, A bent portion is provided at the front end of the snap-fit ​​structure.

5. The electronic device according to claim 3, characterized in that, A guide slope is provided on the side of the protruding structure facing the cover.

6. The electronic device according to claim 3, characterized in that, A curved portion is provided at the connection between the snap-fit ​​structure and the cover.

7. The electronic device according to claim 3, characterized in that, A guide groove is provided on the housing to guide the movement of the snap-fit ​​structure.

8. The electronic device according to any one of claims 1 to 7, characterized in that, The bend line is located at the center of the cover, and the extension direction of the bend line is perpendicular to the movement direction of the cover.

9. The electronic device according to claim 1, characterized in that, The housing has a notch at one end facing the cover for placing wires.

10. The electronic device according to claim 1, characterized in that, A guide rail is provided on the path of the protective cover moving toward the housing.

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