Electronic device with tamper-proofing

Abstract

This utility model provides an electronic device with anti-tampering function. The electronic device includes: a housing with a groove on the back; a fixing plate including a body and an elastic snap-fit ​​part, the elastic snap-fit ​​part engaging with the groove; a disassembly channel extending from the outer surface of the housing to the elastic snap-fit ​​part, the disassembly channel being used to deform the elastic snap-fit ​​part to disengage from the groove; and an insertion structure including a slider and a groove, the slider being disposed on the side of the body and capable of moving along the groove; the fixing plate having a sliding position and an abutment position relative to the housing, the fixing plate moving from the sliding position to the abutment position via the slider, and when the fixing plate is in the abutment position, the elastic snap-fit ​​part being located within the groove, and the slider engaging with the groove. The technical solution provided by this utility model can solve the problem that the mounting plate structure of existing gas detectors is complex, occupies a large amount of internal space in the detector, and makes it difficult to achieve a thin overall design for the detector.

Description

Technical Field

[0001] This utility model relates to the field of anti-disassembly technology for electronic devices, and more specifically, to an electronic device with anti-disassembly function. Background Technology

[0002] In the design of fire gas detectors, the mounting plate, as a key component connecting the detector to the wall, not only serves to fix the detector, but is also often given anti-tampering function to prevent non-professionals from disassembling the equipment at will, thus ensuring the normal operation of the equipment and the safety of users.

[0003] Traditional mounting plates, designed to prevent tampering, often have complex structures, resulting in thicker and larger plates that cover most of the detector's area, forming an effective physical barrier. While this design improves equipment safety to some extent, the thickness of the mounting plate also occupies a significant amount of the detector's internal space when mounted, making it difficult to achieve a slim design for the overall structure of fire gas detectors. Utility Model Content

[0004] This invention provides an electronic device with anti-tampering function to solve the problem that the mounting plate structure of the gas detector in the prior art is complex, occupies a lot of internal space of the detector, and makes it difficult to achieve a thin overall design of the detector.

[0005] This utility model provides an electronic device with anti-tampering function. The electronic device includes: a housing with a groove on the back; a fixing plate detachably connected to the housing, the fixing plate including a body and an elastic snap-fit ​​part, the elastic snap-fit ​​part being disposed on the body and engaging with the groove to assemble the housing onto the fixing plate; a disassembly channel located between the fixing plate and the housing, extending from the outer surface of the housing to the elastic snap-fit ​​part, the disassembly channel being used to deform the elastic snap-fit ​​part to disengage from the groove; and an insertion structure including a slider and a groove, the slider being disposed on the side of the body and the groove being disposed on the back of the housing and corresponding to the slider, the slider being movable along the groove; the fixing plate having a sliding position and an abutment position relative to the housing, the fixing plate moving from the sliding position to the abutment position via the slider, the elastic snap-fit ​​part being located in the groove when the fixing plate is in the abutment position, and the slider engaging with the groove.

[0006] Furthermore, the slide has a sliding section and a snap-fit ​​section connected in sequence. The sliding section has an opening. When the fixed plate is in the sliding position, the sliding piece can enter or exit the slide through the opening. When the fixed plate is in the abutting position, the sliding piece moves to the snap-fit ​​section. The sliding piece and the snap-fit ​​section cooperate to limit the movement. The plug-in structure and the elastic snap-fit ​​part cooperate to fix the relative position of the housing and the fixed plate.

[0007] Furthermore, the back of the housing has a recess that extends along the edge of the housing to a groove, and the gap between the recess and the body forms a disassembly channel.

[0008] Furthermore, the main body has a through hole; the elastic snap-fit ​​part has a connecting end and a free end that are arranged opposite to each other. The elastic snap-fit ​​part is disposed in the through hole, and the connecting end is connected to the inner wall of the through hole. The distance between the elastic snap-fit ​​part and the surface of the housing gradually increases from the free end to the connecting end. The free end has a protrusion located on the side of the elastic snap-fit ​​part facing the housing. The protrusion and the groove are arranged correspondingly, and the protrusion and the groove are snap-fitted together.

[0009] Furthermore, the extension direction of the elastic snap-fit ​​portion forms an angle B with the plane on which the body is located, where 3°≤B≤8°.

[0010] Furthermore, the back of the housing has an inwardly recessed mounting groove, the groove being located on the bottom surface of the mounting groove, and the fixing plate moving within the mounting groove; along the length of the housing, the size of the mounting groove is adapted to the size of the body, and the sliding groove is located on one side of the mounting groove edge and communicates with the mounting groove.

[0011] Furthermore, there are two sliding plates and two sliding grooves, with the two sliding plates and the two sliding grooves corresponding one-to-one; along the length of the housing, the two sliding plates are located on both sides of the main body and are symmetrically distributed, and the two sliding grooves are located on both sides of the mounting groove.

[0012] Furthermore, the top of the main body has a flow guide groove, which is located on the surface of the fixed plate away from the shell. The distance between the flow guide groove and the shell gradually increases from the upper edge to the lower edge of the flow guide groove.

[0013] Furthermore, the elastic snap-fit ​​portion has a first reinforcing rib on the side facing the housing, and the extension direction of the first reinforcing rib is the same as the extension direction of the elastic snap-fit ​​portion; the body has a reinforcing structure on the side facing the housing.

[0014] Furthermore, the mounting plate has at least one mounting hole for engaging with a fastener to attach the mounting plate to the exterior wall.

[0015] By applying the technical solution of this utility model, the elastic snap-fit ​​part cooperates with the groove on the back of the housing to form a firm snap-fit ​​structure. Through the insertion structure of the sliding piece and the sliding groove, the sliding position forms a pre-installation position and guides the sliding of the fixing plate, allowing the fixing plate to move from the sliding position to the abutment position, improving the convenience of installation and the accuracy of assembly. Simultaneously, both the groove and the sliding groove are provided on the housing, and the sliding piece is located on the side of the fixing plate. This greatly simplifies the structural complexity of the fixing plate, thereby reducing the space occupied by the fixing plate when assembled on the housing along the width direction, reducing the size of the housing along the width direction, and making the overall width (i.e., thickness) of the electronic device smaller, thus reducing costs and miniaturizing the device. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 An exploded view of the electronic device provided by this utility model is shown;

[0018] Figure 2 A top-view structural schematic diagram of the housing provided by this utility model is shown;

[0019] Figure 3 A schematic diagram of the structure of the fixing plate provided by this utility model is shown;

[0020] Figure 4 A schematic diagram of the structure of the electronic device provided by this utility model is shown;

[0021] Figure 5 This invention provides a schematic diagram of the rear shell structure from a rear-view perspective.

[0022] Figure 6 A schematic diagram of the structure of the electronic device provided by this utility model from a rear-view perspective is shown;

[0023] Figure 7 It shows Figure 6 Cross-sectional view at point CC;

[0024] Figure 8 It shows Figure 6 Cross-sectional view at point BB;

[0025] Figure 9 This diagram shows the assembly schematic of the back cover and circuit board assembly provided by this utility model.

[0026] Figure 10 A schematic diagram of the front shell provided by this utility model is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Housing; 101. Groove; 102. Recess; 103. Mounting slot; 11. Front housing; 111. Light-transmitting part; 112. Small hole; 113. Cantilever button; 12. Rear housing; 121. SIM card slot hole; 122. Programming hole;

[0029] 20. Fixing plate; 200. Second reinforcing rib; 201. Mounting hole; 202. Third reinforcing rib; 203. Fourth reinforcing rib; 21. Body; 210. Through hole; 211. Guide groove; 22. Elastic snap-fit ​​part; 221. Connecting end; 222. Free end; 2221. Protrusion; 223. First reinforcing rib;

[0030] 30. Disassembly channel;

[0031] 41. Sliding plate; 42. Sliding groove; 421. Sliding section; 422. Snap-fit ​​section;

[0032] 50. Circuit board assembly;

[0033] 61. First buckle; 62. Second buckle. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] like Figures 1 to 10As shown, this embodiment of the present invention provides an electronic device with anti-tampering function. The electronic device includes a housing 10, a fixing plate 20, a disassembly channel 30, and a plug-in structure. The housing 10 has a groove 101 on its back side, and electrical components are disposed inside the housing 10. The fixing plate 20 is detachably connected to the housing 10. The fixing plate 20 includes a body 21 and an elastic snap-fit ​​part 22. The elastic snap-fit ​​part 22 is disposed on the body 21 and engages with the groove 101 to assemble the housing 10 onto the fixing plate 20. The disassembly channel 30 is located between the fixing plate 20 and the housing 10, extending from the outer surface of the housing 10 to the elastic snap-fit ​​part 22. The disassembly channel 30 is used to deform the elastic snap-fit ​​part 22 to disengage from the groove 101. The plug-in structure includes a slider 41 and a groove 42. The slider 41 is disposed on the side of the body 21, and the groove 42 is disposed on the back side of the housing 10 and corresponds to the slider 41. The slider 41 can move along the groove 42. The fixing plate 20 has a sliding position and an abutting position relative to the housing 10. The fixing plate 20 moves from the sliding position to the abutting position by the sliding piece 41. When the fixing plate 20 is in the abutting position, the elastic locking part 22 is located in the groove 101, and the sliding piece 41 and the sliding groove 42 are inserted and engaged.

[0036] The specific material of the elastic snap-fit ​​part 22 is not limited, as long as it is a material that can produce elastic deformation. In this embodiment, the elastic snap-fit ​​part 22 is made of plastic.

[0037] By applying the technical solution of this utility model, the elastic snap-fit ​​part 22 cooperates with the groove 101 on the back of the housing 10 to form a firm snap-fit ​​structure. Through the insertion structure of the sliding piece 41 and the sliding groove 42, the sliding position forms a pre-installation position and can guide the sliding of the fixing plate 20, so that the fixing plate 20 can move from the sliding position to the abutment position, improving the convenience of installation and the accuracy of assembly. At the same time, the groove 101 and the sliding groove 42 are both provided on the housing 10, and the sliding piece 41 is provided on the side of the fixing plate 20. This can greatly simplify the structural complexity of the fixing plate 20, thereby reducing the space occupied by the fixing plate 20 on the housing 10 when it is assembled on the housing 10 along the width direction, reducing the size of the housing 10 along the width direction, making the overall width (i.e., thickness) of the electronic device smaller. While reducing costs, it optimizes the structural design and space utilization, making the device miniaturized.

[0038] In this application, the disassembly tool is not limited and can be a thin sheet, pry bar, etc.

[0039] Preferably, the size of the disassembly channel 30 along the width direction of the housing 10 is A, where 1mm≤A≤2mm.

[0040] If A is less than 1 mm, the required disassembly tool is too small, making it difficult to process and handle, and its structural strength is low, making it prone to breakage during operation. If A is greater than 2 mm, the size is too large, allowing workers to easily separate the housing 10 from the fixing plate 20 by inserting their fingers into the disassembly channel. Therefore, in this application, 1 mm ≤ A ≤ 2 mm. This size prevents workers from inserting their fingers into the disassembly channel 30, requiring tools to separate the housing 10 from the fixing plate 20. This facilitates operation and processing while preventing workers from easily disassembling the system with their fingers, ensuring the integrity of the fire safety system. A can be selected from 1 mm, 1.2 mm, 1.9 mm, or 2 mm, etc. In other embodiments, the size of the disassembly channel 30 can be selected and adjusted according to actual needs.

[0041] In this embodiment, the electronic device is a fire gas detector. In other embodiments, the electronic device can be other devices that need to be prevented from being disassembled by hand.

[0042] In this embodiment, the size of the disassembly channel 30 is 2mm along the width direction of the housing 10 and 7mm along the length direction of the housing 10.

[0043] Specifically, the fixing plate 20 has a length of 55 mm along the length of the housing 10, a width of 1.8 mm along the width of the housing 10, and a height of 36 mm along the height of the housing 10. It occupies a relatively small amount of space on the back of the housing 10.

[0044] In this application, the X-axis direction is the length direction of the housing 10, the Y-axis direction is the width direction of the housing 10, and the Z-axis direction is the height direction of the housing 10.

[0045] like Figure 6 and Figure 7As shown, the slide groove 42 has a sliding section 421 and a snap-fit ​​section 422 connected in sequence. The sliding section 421 has an opening, allowing the sliding piece 41 to enter or exit the slide groove 42 when the fixing plate 20 is in the sliding position. When the fixing plate 20 is in the abutting position, the sliding piece 41 moves to the snap-fit ​​section 422, where it engages with the snap-fit ​​section 422 for positioning. The insertion structure and the elastic snap-fit ​​part 22 work together to fix the relative positions of the housing 10 and the fixing plate 20. The opening design of the sliding section 421 allows the sliding piece 41 to easily enter or exit the slide groove 42. Simply placing the sliding piece 41 into the slide groove 42 ensures that the fixing plate 20 is in the sliding position, simplifying the initial assembly process of the fixing plate 20 and the housing 10. Maintenance personnel do not need to align the complex structure; they only need to align the sliding piece 41 with the opening and push it in to begin sliding the fixing plate 20 to its abutting position, achieving rapid installation. The plug-in structure and the elastic snap-fit ​​part 22 form a double lock between the fixing plate 20 and the housing 10. Unless a force is applied from the disassembly channel 30 using an appropriate tool, the lock cannot be released, thereby effectively preventing the operator from disassembling by hand, improving the anti-disassembly effect, and enhancing the stability and effectiveness of the assembly between the fixing plate 20 and the housing 10.

[0046] like Figure 5 As shown, the back of the housing 10 has a recess 102, which extends along the edge of the housing 10 to a groove 101. The gap between the recess 102 and the body 21 forms a disassembly channel 30. The concealment of the disassembly channel increases the difficulty for non-professionals to disassemble the equipment, thereby improving the safety protection level of the equipment. Providing the recess 102 on the housing 10 further reduces the structure that needs to be processed on the fixing plate 20, making the structure of the fixing plate 20 simpler. Specifically, the recess 102 is a groove structure. In this embodiment, the bottom of the recess 102 away from the entrance of the disassembly channel 30 forms a groove 101. In other embodiments, the groove 101 can be machined within the recess 102 to form a groove structure recessed towards the front housing 11.

[0047] In this embodiment, the recessed portion 102 extends along the upper edge of the housing 10 to the groove 101. A tool abuts against the elastic locking portion 22 on the side facing the housing 10, causing it to disengage from the groove 101. With this design, when disassembling, the operator can easily observe the position of the disassembly channel 30 by looking down, allowing for a more natural and comfortable disassembly posture, thus improving the accuracy and efficiency of the disassembly.

[0048] like Figure 6 and Figure 8As shown, the main body 21 has a through hole 210. The elastic locking part 22 has a connecting end 221 and a free end 222 disposed opposite to each other. The elastic locking part 22 is disposed in the through hole 210, and the connecting end 221 is connected to the inner wall of the through hole 210. The distance between the elastic locking part 22 and the surface of the housing 10 gradually increases from the free end 222 to the connecting end 221. When the fixing plate 20 is in the sliding position, the protrusion 2221 abuts against the surface of the housing 10. The housing 10 will apply a force away from the housing 10 to the protrusion 2221. At this time, the elastic locking part 22 produces a slight elastic deformation. Thus, during the sliding of the fixing plate 20, the protrusion 2221 will always abut against the housing 10. When the abutment position is reached, the housing 10 will apply a pressure away from the housing 10 to the protrusion 2221. The elastic locking part 22, due to its elasticity, can drive the protrusion 2221 to automatically enter the groove 101 without the need for additional operation by the operator. The free end 222 has a protrusion 2221, which is located on the side of the elastic snap-fit ​​portion 22 facing the housing 10. The protrusion 2221 is correspondingly provided with the groove 101, and the protrusion 2221 and the groove 101 are snap-fitted together.

[0049] In this embodiment, the elastic locking portion 22 is an elastic plate with a rectangular cross-section, and the protrusion 2221 also has a rectangular cross-section. Furthermore, the extending direction of the protrusion 2221 is the same as the length direction of the housing 10, and the structural contour of the groove 101 matches that of the protrusion 2221. In other embodiments, the structure of the elastic locking portion 22 is not limited.

[0050] Furthermore, the elastic snap-fit ​​part 22 is integrally formed with the body 21, and there is a gap between the protrusion 2221 and the lower edge of the through hole.

[0051] Specifically, the extension direction of the elastic locking part 22 forms an angle A with the plane of the main body 21, where 3° ≤ B ≤ 8°. If B is less than 3°, the tilt angle of the elastic locking part 22 is too small, resulting in a weak force between it and the housing 10, which may affect or reduce the locking effect with the groove 101. If B is greater than 8°, the tilt angle of the elastic locking part 22 is too large, resulting in a strong force between it and the housing 10, which may cause friction and hinder the smooth sliding of the fixing plate 20, and may even lead to breakage during sliding. Therefore, in this application, 3° ≤ B ≤ 8° ensures both the locking effect of the elastic locking part 22 with the groove 101 and the smooth sliding of the fixing plate 20. B can be selected from 3°, 5°, 6.5°, or 8°, etc.

[0052] like Figure 6As shown, the back of the housing 10 has an inwardly recessed mounting groove 103. A recess 101 is located on the bottom surface of the mounting groove 103. The fixing plate 20 moves within the mounting groove 103, which communicates with an opening. Along the length of the housing 10, the dimensions of the mounting groove 103 are adapted to the dimensions of the body 21. Thus, the mounting groove 103 provides guidance for the body 21 during movement. The operator simply aligns the body 21 of the fixing plate 20 and places it into the mounting groove 103, then inserts the slider 41 into the slide groove 42 from the opening. The slider 41 slides along the slide groove 42, and part of the body 21 moves along the side wall of the mounting groove 103 along the length of the housing 10, easily installing the fixing plate 20 into place. The slide groove 42 is located on one side of the mounting groove 103 and communicates with it.

[0053] Along the height direction of the housing 10, the size of the mounting groove 103 is larger than the size of the body 21, so as to provide sufficient sliding space for the assembly of the fixing plate 20 and the housing 10.

[0054] The device comprises two sliding plates 41 and two sliding grooves 42, with each sliding plate 41 corresponding to one of the two sliding grooves 42. Along the length of the housing 10, the two sliding plates 41 are located on both sides of the main body 21 and are symmetrically distributed, while the two sliding grooves 42 are located on both sides of the mounting groove 103. This symmetrical distribution of the two sliding plates 41 and the sliding grooves 42 ensures balanced force distribution on the fixing plate 20 during sliding, effectively preventing tilting or jamming that may occur due to unilateral sliding.

[0055] like Figure 3 As shown, the top of the main body 21 has a flow guide groove 211, which is located on the surface of the fixing plate 20 away from the housing 10. The distance between the flow guide groove 211 and the housing 10 gradually increases from the upper edge to the lower edge of the flow guide groove 211. The flow guide groove 211 can guide the fluid on the fixing plate 20 to the side of the main body 21 away from the housing 10, preventing fluid or impurities from entering the back of the housing 10 and damaging the components on the back of the housing 10.

[0056] like Figure 3 As shown, the elastic snap-fit ​​portion 22 has a first reinforcing rib 223 on the side facing the housing 10. The extending direction of the first reinforcing rib 223 is the same as the extending direction of the elastic snap-fit ​​portion 22. The first reinforcing rib 223 can increase the structural strength of the elastic snap-fit ​​portion 22 and extend its service life. The body 21 has a reinforcing structure on the side facing the housing 10, wherein the reinforcing structure includes a second reinforcing rib 200 and a third reinforcing rib 202, which are arranged intersectingly.

[0057] Furthermore, the fixing plate 20 has at least one mounting hole 201 for engaging with a fastener to attach the fixing plate 20 to the exterior wall.

[0058] In this embodiment, two mounting holes 201 are provided on the fixing plate 20 at intervals along the length of the housing 10. One mounting hole 201 is a circular hole and the other mounting hole 201 is an oblong hole. In this way, when the fixing plate 20 is hung on the exterior wall, the oblong hole can be adapted to fasteners of different intervals or sizes, which improves the flexibility of the fixing plate 20.

[0059] The reinforcing structure also includes multiple fourth reinforcing ribs 203, which are configured one-to-one with multiple mounting holes 201.

[0060] Specifically, the housing 10 includes a front housing 11 and a rear housing 12, with a fixing plate 20 disposed on the back of the rear housing 12, i.e., on the side of the rear housing 12 opposite to the front housing 11. The groove 101, recess 102, mounting groove 103, and sliding groove 42 are all disposed on the back of the rear housing 12.

[0061] The electrical components include circuit board assembly 50, sensors, and buzzers, which are existing technologies and will not be described in detail here.

[0062] like Figure 9 As shown, the circuit board assembly 50 is inserted into the rear shell 12 via two first clips 61, and then the front shell 11 is fastened on. Five sets of mutually cooperating second clips 62 are provided between the front shell 11 and the rear shell 12 for fixation.

[0063] like Figure 10 As shown, the light from the indicator light inside the housing 10 shines on the light-transmitting part 111 of the front housing 11, which is partially thinned. By making the thickness of the light-transmitting part 111 thinner, light can be projected onto the surface of the front housing 11 through the light-transmitting part 111. This eliminates the need for additional light guide pillars and saves manufacturing costs.

[0064] In this application, a cantilever button 113 is used instead of a conventional button on the front cover 11 to achieve self-test and mute functions. The cantilever button 113 is integrally formed with the front cover 11. An opening is made on the front cover 11 at the button location. The cantilever button 113 is set corresponding to the opening. The cantilever button 113 is elastic. One end of the cantilever button 113 is connected to the edge of the opening. When the operator presses the cantilever button 113, the other end of the cantilever button 113 can move relative to the opening.

[0065] Specifically, the front shell 11 has multiple mesh-like holes 112 on its side. The holes 112 are used for gas to diffuse into the electronic device and for the buzzer to produce sound.

[0066] like Figure 5As shown, the back cover 12 has a SIM card slot 121 and a programming hole 122 on its back side. Both the SIM card slot 121 and the programming hole 122 are located inside the mounting groove 103. After the fixing plate 20 is assembled with the housing 10, it can cover the SIM card slot 121 and the programming hole 122 to meet the IP30 protection level requirements.

[0067] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0069] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0070] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0071] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electronic device having a tamper-proof function, characterized by comprising: The electronic device includes: The housing (10) has a groove (101) on its back side; A fixing plate (20) is detachably connected to the housing (10). The fixing plate (20) includes a body (21) and an elastic snap-fit ​​part (22). The elastic snap-fit ​​part (22) is disposed on the body (21). The elastic snap-fit ​​part (22) engages with the groove (101) to assemble the housing (10) onto the fixing plate (20). A disassembly channel (30) is located between the fixing plate (20) and the housing (10). The disassembly channel (30) extends from the outer surface of the housing (10) to the elastic snap-fit ​​portion (22). The disassembly channel (30) is used to deform the elastic snap-fit ​​portion (22) to disengage from the groove (101). The plug-in structure includes a slider (41) and a groove (42). The slider (41) is disposed on the side of the body (21), and the groove (42) is disposed on the back of the housing (10) and is correspondingly disposed to the slider (41). The slider (41) can move along the groove (42). The fixing plate (20) has a sliding position and an abutting position relative to the housing (10). The fixing plate (20) moves from the sliding position to the abutting position via the sliding piece (41). When the fixing plate (20) is in the abutting position, the elastic snap-fit ​​part (22) is located in the groove (101), and the sliding piece (41) is inserted into the groove (42).

2. The electronic device of claim 1, wherein, The slide groove (42) has a sliding section (421) and a snap-fit ​​section (422) connected in sequence. The sliding section (421) has an opening. When the fixed plate (20) is in the sliding position, the sliding piece (41) can enter or exit the slide groove (42) through the opening. When the fixed plate (20) is in the abutting position, the sliding piece (41) moves to the snap-fit ​​section (422). The sliding piece (41) and the snap-fit ​​section (422) cooperate to limit the movement. The plug-in structure and the elastic snap-fit ​​part (22) cooperate to fix the relative position of the housing (10) and the fixed plate (20).

3. The electronic device of claim 1, wherein, The back of the housing (10) has a recess (102) that extends along the edge of the housing (10) to the groove (101), and the gap between the recess (102) and the body (21) forms the disassembly channel (30).

4. The electronic device of claim 1, wherein, The body (21) has a through hole (210); the elastic snap-fit ​​part (22) has a connecting end (221) and a free end (222) disposed opposite to each other. The elastic snap-fit ​​part (22) is disposed in the through hole (210), and the connecting end (221) is connected to the inner wall of the through hole (210). The distance between the elastic snap-fit ​​part (22) and the surface of the housing (10) gradually increases from the free end (222) to the connecting end (221). The free end (222) has a protrusion (2221). The protrusion (2221) is located on the side of the elastic snap-fit ​​part (22) facing the housing (10). The protrusion (2221) is disposed corresponding to the groove (101), and the protrusion (2221) and the groove (101) snap-fit ​​together.

5. The electronic device of claim 1, wherein, The extension direction of the elastic snap-fit ​​part (22) forms an angle B with the plane on which the body (21) is located, where 3°≤B≤8°.

6. The electronic device of claim 1, wherein, The back of the housing (10) has an inwardly recessed mounting groove (103), the groove (101) is located on the bottom surface of the mounting groove (103), and the fixing plate (20) moves within the mounting groove (103); along the length direction of the housing (10), the size of the mounting groove (103) is adapted to the size of the body (21), and the sliding groove (42) is located on one side of the mounting groove (103) and communicates with the mounting groove (103).

7. The electronic device of claim 6, wherein, There are two of each of the sliding plate (41) and the sliding groove (42), with the two sliding plates (41) and the two sliding grooves (42) arranged in a one-to-one correspondence; along the length direction of the housing (10), the two sliding plates (41) are located on both sides of the body (21) and are symmetrically distributed, and the two sliding grooves (42) are located on both sides of the mounting groove (103).

8. The electronic device of claim 1, wherein, The top of the body (21) has a guide groove (211), which is located on the surface of the fixing plate (20) away from the housing (10). The distance between the guide groove (211) and the housing (10) gradually increases from the upper edge to the lower edge of the guide groove (211).

9. The electronic device of claim 1, wherein, The elastic snap-fit ​​portion (22) has a first reinforcing rib (223) on the side facing the housing (10), and the extension direction of the first reinforcing rib (223) is the same as the extension direction of the elastic snap-fit ​​portion (22); the body (21) has a reinforcing structure on the side facing the housing (10).

10. The electronic device of claim 1, wherein, The fixing plate (20) has at least one mounting hole (201) for engaging with a fastener to attach the fixing plate (20) to the exterior wall.

Images