Intelligent conversion socket

Abstract

The utility model discloses an intelligent conversion socket, which comprises a shell and a somatosensory assembly arranged in the shell, the front surface of the shell is provided with a perspective window at a position corresponding to the somatosensory assembly, and the somatosensory assembly comprises a guide piece with a transparent part and a first circuit board with a somatosensory sensor. The guide piece is fixed in the shell, the transparent part is arranged on the perspective window, a fixed through groove is formed in the guide piece, the first circuit board is fixed in the fixed through groove, and the somatosensory sensor transmits an induction signal to the outside through the transparent part. The intelligent conversion socket has the advantages that the circuit board with the somatosensory sensor is fixed on the guide piece, so that the problem that the product quality is influenced due to the fact that the distance between the sensor and the guide piece in the existing intelligent conversion socket has an error is solved. The relative positions of the somatosensory sensor and the guide piece on the first circuit board are fixed, the installation error of the somatosensory sensor and the guide piece is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to an intelligent conversion socket. Background Art

[0002] Smart adapters are now widely used in wireless control of smart home appliances. They feature a built-in human motion sensor. A triangular socket on the back connects to an existing outlet, while a second and third socket on the front accept other devices. The human motion sensor can detect the presence of people in front of the socket. For example, if a light is connected to the smart adapter, it powers on when someone passes by. If no one is nearby, the light turns off. Of course, other electrical components can also be connected to the smart adapter, enabling even more functionality.

[0003] Human body sensors, a key component in smart power adapters, include sensors. These sensors are typically soldered onto circuit boards, but their coverage is relatively limited. To expand this coverage, transparent guides are typically installed on the housing. The transparent portion is typically curved, protecting the sensor and extending its coverage. The guides are typically fixed to the housing, while the sensor is mounted on a circuit board, which is then fixed to the housing. This results in significant errors in the distance between the sensor and the guide, leading to inaccurate sensor sensing and ineffective product quality assurance. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent conversion socket, which can effectively solve the problem that the distance between the sensor and the guide member in the existing intelligent conversion socket has an error, which affects the product quality.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A smart conversion socket includes a shell and a somatosensory component arranged in the shell. A perspective window is provided on the front of the shell at a position corresponding to the somatosensory component. The somatosensory component includes a guide with a transparent portion and a first circuit board provided with a somatosensory sensor. The guide is fixed in the shell, the transparent portion is provided on the perspective window, a fixed through-slot is provided on the guide, the first circuit board is fixed in the fixed through-slot, and the somatosensory sensor transmits an induction signal to the outside world through the transparent portion.

[0007] In the above-mentioned intelligent conversion socket, the perspective window includes an arc-shaped groove and a transmission hole arranged in the middle of the arc-shaped groove, the transparent part passes through the transmission hole, and the guide member is engaged with the transmission hole.

[0008] In the above-mentioned intelligent conversion socket, the guide member is provided with a hook and an abutting portion respectively abutting against the shells on the inner and outer sides of the transmission hole, so as to realize the locking connection between the guide member and the transmission hole.

[0009] In the above-mentioned intelligent conversion socket, two brackets extending toward the inside of the shell are provided on the back side of the shell, a slot is formed between the two brackets, and the guide member is stuck in the slot.

[0010] In the above-mentioned intelligent conversion socket, a second circuit board is further provided in the shell, the first circuit board is electrically connected to the second circuit board, a through hole is opened on the second circuit board, and both of the brackets pass through the through hole to position the second circuit board.

[0011] In the above-mentioned intelligent conversion socket, a step is provided on the bracket, and the step abuts against the bottom of the second circuit board so that the second circuit board is suspended on the back side of the shell.

[0012] In the above-mentioned intelligent conversion socket, a socket hole is also opened on the front of the shell, and a mounting seat is provided in the shell at a position corresponding to the socket hole. A protective door for controlling the opening and closing of the socket hole is provided in the mounting seat. A card slot is opened on the end face of the mounting seat facing the guide member, and a card shaft adapted to the card slot is provided on the guide member.

[0013] In the above-mentioned intelligent conversion socket, a second circuit board is provided in the shell, a strong current area and a weak current area are provided on the second circuit board, and the mounting seat extends to the second circuit board and separates the strong current area from the weak current area.

[0014] In the above-mentioned intelligent conversion socket, a communication circuit board is further provided in the shell, and the communication circuit board is plugged into the second circuit board.

[0015] In the above-mentioned intelligent conversion socket, a fixing groove is further formed on the side wall of the fixing through groove, and the first circuit board includes a board body, and the side edges of the board body are inserted into the fixing groove.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] By fixing the circuit board with the somatosensory sensor on the guide part, the problem of error in the distance between the sensor and the guide part in the existing intelligent conversion socket, which affects the product quality, is solved. A perspective window is opened on the front of the shell so that the somatosensory sensor can perceive the external situation through the transparent part. The transparent part can not only expand the perception range of the somatosensory sensor, but also protect the somatosensory sensor, prevent foreign objects from directly touching the somatosensory sensor, and prevent the somatosensory sensor from being contaminated by dust and the like. The guide part is fixed on the shell, which can ensure that the relative position of the transparent part on the guide part and the perspective window is fixed. A fixed through groove is opened on the guide part, and the first circuit board is fixed in the fixed through groove, so that the relative position of the somatosensory sensor on the first circuit board and the guide part is fixed, which reduces the installation error between the somatosensory sensor and the guide part and improves product quality.

[0018] Furthermore, the perspective window includes an arcuate groove and a transmissive hole disposed in the middle of the arcuate groove. The transparent portion passes through the transmissive hole, and the guide member engages with the transmissive hole. The arcuate groove reduces interference with the motion sensor from the groove sidewalls. The transmissive hole in the middle of the arcuate groove allows the transparent portion to pass through, allowing the motion sensor behind the transparent portion to directly sense changes in external conditions. The guide member is secured to the transmissive hole by a snap-fit mechanism, simplifying installation and speeding up the assembly process.

[0019] Furthermore, the guide member is provided with a hook and an abutting portion that respectively abut against the housing on both the inner and outer sides of the transmission hole, so as to achieve the engagement between the guide member and the transmission hole. The hook and the abutting portion abut against the housing next to the transmission hole from both the inner and outer directions, thereby ensuring a secure fixation between the guide member and the housing.

[0020] Furthermore, the back of the housing is provided with two brackets extending toward the inside of the housing, with a slot formed between the two brackets, and the guide member is clamped in the slot. The two brackets are provided on the back of the housing to form a slot to fix the guide member, and the guide member is clamped between the two brackets to ensure that the relative position of the guide member and the housing is fixed.

[0021] Furthermore, a second circuit board is provided within the housing, electrically connected to the first and second circuit boards. The second circuit board has a through hole, through which both brackets pass to position the second circuit board. A high-voltage component can be provided on the second circuit board, thereby separating it from the first circuit board where the body sensor is provided, achieving separation of high and low voltage components. Furthermore, the brackets can be passed through the through hole on the second circuit board to position the second circuit board.

[0022] Furthermore, the bracket is provided with a step that abuts against the bottom of the second circuit board, so that the second circuit board is suspended on the back of the housing. The step on the bracket allows the second circuit board to remain suspended from the back of the housing, which facilitates the arrangement of electrical components on the second circuit board.

[0023] Furthermore, the housing has a socket hole formed on the front surface, and a mounting base is provided within the housing at a position corresponding to the socket hole. A protective door for controlling the opening and closing of the socket hole is provided within the mounting base. A slot is formed on the end surface of the mounting base facing the guide member, and the guide member is provided with a shaft that mates with the slot. The mounting base not only facilitates the installation of the protective door, but also provides a slot that mates with the shaft on the guide member, further enhancing the stability of the guide member's fixation.

[0024] Furthermore, a second circuit board is disposed within the housing, and the second circuit board is provided with a high-current area and a low-current area. The mounting base extends to the second circuit board and separates the high-current area from the low-current area. By separating the high-current area from the low-current area on the second circuit board through the mounting base, the number of circuit boards within the socket is reduced while ensuring the safety of electrical components in both the high-current and low-current areas.

[0025] Furthermore, a communication circuit board is provided in the housing and plugged into the second circuit board. The communication circuit board can be made into an optional module, and whether the wireless communication function is required can be flexibly selected according to the positioning of different products.

[0026] Furthermore, the sidewalls of the fixing slot are further provided with fixing slots, and the first circuit board includes a plate body, and the side clips of the plate body are inserted into the fixing slots. The insertion of the fixing slots into the plate body further enhances the connection between the first circuit board and the guide member, preventing relative movement between the first circuit board and the guide member. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional diagram of the present invention from the front view;

[0028] Figure 2 This is a three-dimensional diagram of the back side of the housing body of the present invention;

[0029] Figure 3 The explosion of the intelligent conversion socket of the utility model Figure 1 ;

[0030] Figure 4 The explosion of the intelligent conversion socket of the utility model Figure 2 ;

[0031] Figure 5 The three-dimensional guide member of the utility model Figure 1 ;

[0032] Figure 6 The three-dimensional guide member of the utility model Figure 2 . DETAILED DESCRIPTION

[0033] A smart conversion socket includes a shell and a somatosensory component arranged in the shell. A perspective window 12 is opened on the front of the shell at a position corresponding to the somatosensory component. The somatosensory component includes a guide member 16 with a transparent portion 161 and a first circuit board 18 provided with a somatosensory sensor 182. The guide member 16 is fixed in the shell. The transparent portion 161 is arranged on the perspective window 12. A fixed through-slot 164 is opened on the guide member 16. The first circuit board 18 is fixed in the fixed through-slot 164. The somatosensory sensor 182 transmits an induction signal to the outside world through the transparent portion 161.

[0034] By fixing the circuit board with the somatosensory sensor 182 to the guide member 16, the problem of the error in the distance between the sensor and the guide member 16 in the existing smart conversion socket, which affects product quality, is solved. A transparent window 12 is provided on the front of the housing so that the somatosensory sensor 182 can perceive the external environment through the transparent portion 161. The transparent portion 161 not only expands the sensing range of the somatosensory sensor 182, but also protects the somatosensory sensor 182 by preventing foreign objects from directly contacting the somatosensory sensor 182 and preventing the somatosensory sensor 182 from being contaminated by dust and other substances. The guide member 16 is fixed to the housing to ensure that the relative position of the transparent portion 161 on the guide member 16 and the transparent window 12 is fixed. A fixing groove 164 is provided on the guide member 16, and the first circuit board 18 is fixed in the fixing groove 164. The relative position of the somatosensory sensor 182 on the first circuit board 18 and the guide member 16 is fixed, thereby reducing the installation error between the somatosensory sensor 182 and the guide member 16 and improving product quality.

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] See Figures 1 to 6 This is an embodiment of a smart switching socket according to the present invention. The smart switching socket includes a housing and a motion sensing component disposed within the housing. The housing is generally rectangular and includes a housing body 1, which defines an inner cavity 100. The back of the housing body 1 is open and sealed with a cover 2 to facilitate installation of electrical components. The front 110 of the housing has a perspective window 12 and a socket hole 13. The socket hole 13 facilitates connection to other electrical components, while the perspective window 12 allows the motion sensing component to sense changes in the external environment.

[0040] The somatosensory component includes a guide member 16 with a transparent portion 161 and a first circuit board 18 provided with a somatosensory sensor 182. The guide member 16 is fixed on the shell. The transparent portion 161 can not only amplify the signal of the somatosensory sensor 182, but also protect the somatosensory sensor 182 from external pollution. The transparent portion 161 is arranged on the perspective window 12 to ensure that the somatosensory sensor 182 transmits a sensing signal to the outside world through the transparent portion 161 and judges the external human body condition based on the return signal.

[0041] The guide member 16 is provided with a fixing slot 164 extending along the length of the housing. The first circuit board 18 is inserted into the fixing slot 164, thereby securing the first circuit board 18 to the guide member 16. The motion sensor 182 on the first circuit board 18 faces the transparent portion 161. Because the first circuit board 18 is directly secured to the guide member 16, the position of the motion sensor 182 relative to the transparent portion 161 is easily determined, improving installation accuracy.

[0042] Furthermore, a fixing slot 166 is formed on the sidewall of the fixing slot 164, aligned with the opening direction of the fixing slot 164. The first circuit board 18 includes a plate body, the side edges of which snap into the fixing slot 166. The fixing slot 166 and the side edges of the plate body can be formed into an interference fit to ensure a secure connection between the first circuit board 18 and the guide member 16. The cross-sectional shape of the fixing slot 164 is determined based on the distribution of electrical components on the first circuit board 18, ensuring that the guide member 16 does not interfere with the electrical components on the first circuit board 18 when the first circuit board 18 is inserted into the fixing slot 164.

[0043] In the above embodiment, the perspective window 12 includes an arc-shaped groove 122 and a transmission hole 121 arranged in the middle of the arc-shaped groove 122. The arc-shaped groove 122 is arranged along the width direction of the shell. After the smart conversion socket is plugged into the ordinary socket according to the general plug-in position, the arc-shaped groove 122 can avoid obstructing the perception of the somatosensory sensor 182 on the left and right sides, that is, people moving from the left and right sides can be sensed by the somatosensory sensor 182 earlier, and the transmission hole 121 opened in the middle of the arc-shaped groove 122 facilitates the transparent part 161 to pass through, and the guide member 16 is engaged with the transmission hole 121, which facilitates the fixation of the guide member 16 to the shell.

[0044] Specifically, the entire guide member 16 is cylindrical, and the axis of the guide member 16 is consistent with the length direction of the shell. The upper half of the small arc portion of the guide member 16 is made into a transparent or translucent transparent portion 161. A fixed through-slot 164 is opened along the axial direction of the guide member 16 and penetrates the guide member 16. Both ends of the diameter of the guide member 16 form abutment portions. The transparent portion 161 is provided with a hook 163 protruding to both sides along the axial direction of the guide member 16 near the abutment portion. The shell is generally made of flame-retardant material with a certain degree of elasticity. After the transparent portion 161 is passed through the transmission hole 121, the hook 163 abuts the shell outside the transmission hole 121, and the abutment portion abuts the shell inside the transmission hole 121, thereby preventing the guide member 16 from moving relative to the shell along the height direction of the shell. The cross-sectional shape and size of the transmission hole 121 are consistent with the shape and size of the transparent portion 161 located at the transmission hole 121, so that the transmission hole 121 limits the guide member 16 in a plane perpendicular to the height direction of the shell.

[0045] In the above embodiment, the back of the shell is provided with two brackets extending toward the interior of the shell, that is, the two brackets are provided on the cover plate 2, and the two brackets are respectively a first bracket 21 and a second bracket 22. The first bracket 21 and the second bracket 22 are arranged at an interval, and the distance between the first bracket 21 and the second bracket 22 is equal to the thickness of the guide member 16, so that the bottom of the guide member 16 can be inserted between the two brackets, thereby using the two brackets to limit the guide member 16. Since the axial direction of the guide member 16 is consistent with the longitudinal direction of the shell, the first bracket 21 and the second bracket 22 are also arranged front and back along the longitudinal direction of the shell, so that the first bracket 21 and the second bracket 22 can respectively abut against the two end faces of the front side 162 and the back side 169 of the guide member, thereby increasing the contact area between the bracket and the guide member 16 and limiting the guide member 16 along the longitudinal direction of the shell.

[0046] Furthermore, a second circuit board 3 is disposed within the housing. The electrical components on this second circuit board 3 primarily convert mains electricity into low-voltage power for low-voltage components such as the motion sensor 182. The first circuit board 18 is also electrically connected to an interface 35 on the second circuit board 3 via a wire 181. A through hole 34 is formed in the second circuit board 3. Two brackets extend through the through hole 34 and abut against the side walls of the through hole 34. This allows the brackets to position the second circuit board 3 and restrict its movement relative to the housing in a direction perpendicular to the height of the housing.

[0047] Furthermore, each bracket is provided with a step, which abuts the bottom of the second circuit board 3, keeping the second circuit board 3 suspended between the cover plate 2, so as to prevent the electrical components on the second circuit board 3 from touching the cover plate 2. At the same time, a fixing column is also provided on the cover plate 2 to support and fix the second circuit board 3, ensuring that the second circuit board 3 and the cover plate 2 are relatively fixed.

[0048] On the basis of the above embodiment, since the front face 110 of the shell is provided with a socket hole 13, a mounting seat 193 is provided at a position corresponding to the socket hole 13 in the shell, a mounting cavity 194 is provided on the top surface of the mounting seat 193, and a protective door for controlling the opening and closing of the socket hole 13 is provided in the mounting cavity 194. The protective door includes a two-hole protective door 191 and a three-hole protective door 192. A card slot 195 is provided on the end face of the mounting seat 193 facing the guide member 16, and a card shaft 165 is provided on the guide member 16 for inserting into the card slot 195. The card slot 195 is provided along the height direction of the shell, and the card slot 195 can be used to limit the guide member 16 along the width direction of the shell. The mounting seat 193 can be fixed to the shell, and since the second circuit board 3 needs to convert strong electricity into weak electricity and supply power to the LED components on the second circuit board 3, the second circuit board 3 is divided into a strong electricity area and a weak electricity area. According to the circuit specification, the strong electricity area and the weak electricity area need to be separated. In this embodiment, the mounting base 193 extends toward the second circuit board 3 , and the mounting base 193 is used to separate the high-current area and the low-current area on the second circuit board 3 , thereby avoiding the need for a separate separation component.

[0049] Furthermore, the housing of the smart switching socket houses a communication circuit board 31, which is equipped with communication components. Depending on the positioning of the smart switching socket, this circuit board 31 can be added to some smart switching sockets requiring wireless communication capabilities, while it can be removed from other smart switching sockets that do not. The communication circuit board 31 is vertically positioned and plugs into the second circuit board 3, ensuring electrical connection between the two. The vertical placement of the communication circuit board 31 also allows for full utilization of the height space within the housing.

[0050] The front face 110 of the housing also includes a first light-transmitting aperture 11 and a second light-transmitting aperture 14. Each of these apertures corresponds to a set of indicator lights, which indicate when the smart adapter is not working. For example, one set of indicators indicates the working status of the smart adapter, while the other indicates whether the smart adapter is being set up successfully by flashing different lights or colors. The two sets of indicators are located at either end of the front face of the smart adapter along its length to avoid user confusion.

[0051] A button hole 15 is also provided on one side wall of the shell, and the corresponding button is electrically connected to the second circuit board 3. The button is composed of a button 152 and a button assembly 151. The button assembly 151 has a transparent light-guiding structure that can contact the surface of the second circuit board 3 to guide the light of different colors emitted by the LED component 17 on the second circuit board 3 to the light-transmitting part in the center of the button 152.

[0052] The second circuit board 3 also has an opening 23, through which a power plug 24 is electrically connected to the second circuit board 3. When the smart conversion socket is plugged into an existing socket, mains power can be introduced into the smart conversion socket. A conductive socket 32 is also provided on the second circuit board 3. The position of the conductive socket 32 corresponds to the socket hole 13. When the plug of an electrical appliance is inserted into the smart conversion socket, it will be electrically connected to the conductive socket 32. The conductive socket 32 is also electrically connected to a switch assembly 33 provided on the second circuit board 3. The body sensor 182 senses external conditions and sends a signal to the switch assembly 33. The switch assembly 33 then controls whether to energize the conductive socket 32, thereby achieving the purpose of intelligently powering the electrical appliance based on external human body conditions.

[0053] In the intelligent conversion socket using the above structure, the body sensor 182 can be a microwave module in addition to an infrared sensor, especially a millimeter-wave radar module that can sense the human body within a certain distance. The millimeter-wave radar module can also solve the problem of the switch being disconnected after a period of time after the infrared is reflected. Since the body sensor 182 is directly fixed to the guide member 16, the installation error of the body sensor 182 can be reduced, and the product quality can be improved. The guide member 16 is fixed by the shell body 1, the cover plate 2 and the mounting seat 193 to ensure that the position of the guide member 16 in the shell will not move, that is, to ensure that the body sensor 182 can accurately sense the human body in the outside world. The entire intelligent conversion socket has a compact structure and adopts a multi-circuit board design to fully utilize the space within the shell, so that the volume of the intelligent conversion socket can be reduced, which is more convenient to install and reduces interference with electrical appliances around the socket after installation.

[0054] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. An intelligent conversion socket, comprising a housing and a somatosensory component disposed within the housing, wherein a perspective window is provided on the front of the housing at a position corresponding to the somatosensory component, characterized in that: The somatosensory component includes a guide member with a transparent portion and a first circuit board provided with a somatosensory sensor. The guide member is fixed in the shell, the transparent portion is arranged on the perspective window, a fixed through groove is opened on the guide member, the first circuit board is fixed in the fixed through groove, and the somatosensory sensor transmits a sensing signal to the outside world through the transparent portion.

2. The intelligent conversion socket according to claim 1, characterized in that: The perspective window includes an arc-shaped groove and a transmission hole arranged in the middle of the arc-shaped groove. The transparent part passes through the transmission hole, and the guide member is engaged with the transmission hole.

3. The intelligent conversion socket according to claim 2, characterized in that: The guide member is provided with a hook and an abutting portion respectively abutting against the shells on the inner and outer sides of the transmission hole, so as to realize the clamping connection between the guide member and the transmission hole.

4. The intelligent conversion socket according to claim 1, characterized in that: Two brackets extending toward the inside of the shell are provided on the back side of the shell, a slot is formed between the two brackets, and the guide piece is clamped in the slot.

5. The intelligent conversion socket according to claim 4, characterized in that: A second circuit board is further provided in the housing. The first circuit board is electrically connected to the second circuit board. A through hole is provided on the second circuit board. Both of the brackets pass through the through hole to position the second circuit board.

6. The intelligent conversion socket according to claim 5, characterized in that: The bracket is provided with a step, and the step abuts against the bottom of the second circuit board so as to enable the second circuit board to be suspended on the back side of the shell.

7. The intelligent conversion socket according to claim 1, characterized in that: A socket hole is also provided on the front of the shell, and a mounting seat is provided in the shell at a position corresponding to the socket hole. A protective door for controlling the opening and closing of the socket hole is provided in the mounting seat. A card slot is provided on the end face of the mounting seat facing the guide member, and a card shaft is provided on the guide member to match the card slot.

8. The intelligent conversion socket according to claim 7, characterized in that: A second circuit board is provided in the shell, and a strong current area and a weak current area are provided on the second circuit board. The mounting seat extends to the second circuit board and separates the strong current area from the weak current area.

9. The intelligent conversion socket according to claim 5 or 8, characterized in that: A communication circuit board is also provided in the housing, and the communication circuit board is plugged into the second circuit board.

10. The intelligent conversion socket according to claim 1, characterized in that: A fixing groove is further formed on the side wall of the fixing through groove. The first circuit board includes a plate body, and the side edges of the plate body are inserted into the fixing groove.

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