CN217603738U - Display mounting structure - Google Patents

Abstract

The utility model relates to a display mounting structure, it includes: the display is provided with a front side surface and a rear side surface opposite to the front side surface, and the rear side surface is provided with a limit groove; the mounting seat comprises a main body and a supporting plate connected with the main body; the main body is embedded in the wall body; the supporting plate protrudes out of the wall body and can be accommodated in the limiting groove, and the supporting plate is detachably connected with the display and can support the display in the vertical direction; after the supporting plate is connected with the display, the back side face can be tightly attached to the wall face of the wall body. Because the main part of mount pad inlays and locates inside the wall body and invisible, only there is the backup pad protrusion in the wall body outside, and the backup pad is after stretching into the spacing groove of display, and the spacing groove provides the space for acceping the backup pad to behind the wall of wall body is hugged closely to the trailing flank, the display has realized sheltering from completely to the backup pad, whole mount pad will all be hidden inside wall body and display, thereby does not have any exposed structure outside, and then makes the outward appearance effect better.

Description

Display mounting structure

Technical Field

The utility model relates to an installation technical field of display especially relates to a display mounting structure.

Background

At present, the TV of family, display such as intercom of registering one's residence all install on the wall through a support frame of fixing at the wall, but have the clearance between wall and the display, can make complicated connection structure between support frame and the display expose outside via this clearance to influence outward appearance effect.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a display mounting structure with a better appearance.

A display mounting structure comprising:

the display comprises a front side surface and a rear side surface opposite to the front side surface, wherein the rear side surface is provided with a limiting groove; and

the mounting seat comprises a main body and a supporting plate connected with the main body; the main body is embedded in the wall body; the supporting plate protrudes out of the wall body and can be contained in the limiting groove, and the supporting plate is detachably connected with the display and can support the display in the vertical direction;

after the supporting plate is connected with the display, the back side face can be tightly attached to the wall face of the wall body.

Among the above-mentioned display mounting structure, the main part of mount pad is inlayed and is located the wall body inside and not visible, thereby only there is backup pad protrusion in the wall body outside, and the backup pad is after stretching into the spacing groove of display, the spacing groove provides the space for acceping the backup pad, thereby behind the wall of wall body is hugged closely to the trailing flank, the display has realized sheltering from completely to the backup pad, so, whole mount pad will all be hidden inside wall body and display, thereby there is not any exposed structure outside other, and then make the outward appearance effect better. In addition, because the backup pad can be dismantled with the display and be connected to the display can separate with the mount pad, so will help the user not changing under the condition of mount pad, change not unidimensional display according to the use needs, and then improve user's use and experience.

In one embodiment, the supporting plate is buckled with the display in the limiting groove.

In one embodiment, the limiting groove has a bottom surface and an inner side abutting surface connected with the bottom surface, and the supporting plate abuts against the inner side abutting surface after being accommodated in the limiting groove so as to support the display along the vertical direction; the inner side abutting surface is provided with a first clamping block, and the first clamping block and the bottom surface are spaced to form an accommodating gap; the supporting plate comprises a body and a second clamping block arranged on the edge of the body, and the second clamping block can be accommodated in the accommodating gap and is abutted against the first clamping block.

In one embodiment, the first fixture block and the second fixture block are multiple, and the first fixture blocks and the second fixture blocks are arranged in a one-to-one correspondence manner; the first clamping blocks are arranged on the inner side abutting surface at intervals.

In one embodiment, the supporting plate comprises a supporting block arranged on the periphery of the body, and the supporting block can abut against the peripheral wall surface of the limiting groove to limit the supporting plate and the display.

In one embodiment, the supporting plate is provided with a first magnetic attraction piece, the display is provided with a second magnetic attraction piece, and the second magnetic attraction piece can attract the first magnetic attraction piece when the supporting plate is accommodated in the limiting groove.

In one embodiment, the first magnetic attracting element is embedded in the supporting plate; and/or the second magnetic part is positioned in the display and corresponds to the limiting groove.

In one embodiment, the supporting plate is provided with a first matching surface clinging to the wall surface and a second matching surface opposite to the first matching surface; the second matching surface can be attached to the bottom surface of the limiting groove when the supporting plate is accommodated in the limiting groove.

In one embodiment, the support plate extends in a ring shape along a circumferential direction of the main body and is formed with a mounting space inside; the mount pad include with the connecting plate that the main part is connected, the connecting plate is located installation space, and have with the coplanar connection face of second fitting surface, connect the face can with the bottom surface of spacing groove is laminated mutually.

In one embodiment, the connecting board and the main body together enclose a receiving space, a circuit board is arranged in the receiving space, the connecting board is provided with a second plug port electrically connected with the circuit board, and the bottom surface of the limiting groove is provided with a first plug port capable of being plugged with the second plug port.

Drawings

FIG. 1 is an illustration of the display mounting structure of the present application after being mounted to a wall;

fig. 2 is a schematic structural diagram of a display mounting structure according to an embodiment of the present application;

fig. 3 is an exploded view of the structure of the display mounting structure shown in fig. 2;

FIG. 4 is a schematic view of the display mounting structure of FIG. 2 in combination with a wall;

FIG. 5 is an enlarged view of the structure at E in FIG. 4;

fig. 6 is a schematic structural view of the mounting seat and the embedded box in fig. 4;

fig. 7 is an enlarged schematic view of the structure at B in fig. 6.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in many ways different from those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the present application, and the present application is therefore not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "below," and "beneath" a second feature may be directly or obliquely under the first feature or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 3, the present application provides a display mounting structure 10. Specifically, the display mounting structure 10 includes a display 20 and a mount 30. The display 20 has a front side 21 and a rear side 22 opposite to the front side 21, and the rear side 22 is provided with a limiting groove 23. The mounting seat 30 includes a main body 31 and a supporting plate 32 connected to the main body 31, wherein the main body 31 is embedded in the wall 40. The supporting plate 32 protrudes out of the wall 40 and can be accommodated in the limiting groove 23, and the supporting plate 32 is detachably connected with the display 20 and can support the display 20 in a vertical direction. After the support plate 32 is connected to the display 20, the back side 22 can be closely attached to the wall surface 41 of the wall 40.

It will be appreciated that, for the display 20, which has a housing (not shown) and a display screen (not shown) mounted on the housing, the display screen can be used for displaying images, and the housing supports the display screen and protects the electronic devices disposed in the space enclosed by the housing and the display screen. The back plate is part of a housing which is located on the side of the display 20 facing away from the display screen. Thus, the front side 21 is the side defined by the display screen, while the rear side 22 is the side defined by the back plate. Alternatively, it is understood that, after the display 20 is mounted on the wall 40, the front side 21 is the side of the display 20 away from the wall 40, and the rear side 22 is the side of the display 20 close to the wall 40.

Further, the display screen may be a touch screen. Alternatively, the display 20 may also have only a display function. Further, the electronic device disposed in the space enclosed by the housing and the display screen may have a speaker and a microphone, so that the display 20 has a function of talkback. Furthermore, the electronic device can also be provided with a circuit board which can be in communication connection with other electronic devices, so that the functions of power supply, signal transmission, signal reception, data processing and the like are realized.

It can be understood that, for the mounting base 30, the main body 31 is embedded in the wall 40 and fixed, so that only the supporting plate 32 protrudes out of the wall 40 and is connected with the display 20 after protruding into the limiting groove 23, and at the same time, the supporting force in the vertical direction is provided for the display 20 to maintain the stable installation of the display 20 on the wall 40.

Further, since the supporting plate 32 is detachably connected to the display 20, the display 20 can be separated from the mounting base 30, which facilitates users to replace the display 20 with different sizes (e.g. 4 inches, 6.86 inches, 7 inches, 10 inches, etc.) according to the use requirement without replacing the mounting base 30, thereby improving the user experience.

It can be understood that, for the installation seat 30, the main body 31 is embedded in the wall 40 and is invisible, so that only the support plate 32 protrudes out of the wall 40, and after the support plate 32 extends into the limiting groove 23, the limiting groove 23 provides a space for accommodating the support plate 32, so that the display 20 completely shields the support plate 32 after the rear side surface 22 is attached to the wall surface 41 of the wall 40, and thus, the whole installation seat 30 is hidden in the wall 40 and the display 20, so that no other exposed structures exist, and the appearance effect is better.

In the present application, the supporting plate 32 is engaged with the display 20 in the limiting groove 23. It will be appreciated that the support plate 32 can be quickly connected to the display 20 by means of a snap fit without using any auxiliary tool, and the connection operation is simpler and more convenient than the connection by means of a screw connection.

As shown in fig. 2 to fig. 5, the limiting groove 23 further has a bottom surface 231 and an inner abutting surface 232 connected to the bottom surface 231, and the supporting plate 32 abuts against the inner abutting surface 232 after being accommodated in the limiting groove 23 to support the display 20 in the vertical direction. The inner abutting surface 232 is provided with a first block 24, and the first block 24 is spaced from the bottom surface 231 to form an accommodating gap 25. Support plate 32 includes a body 321 and a second latch 322 disposed at an edge of body 321, and second latch 322 can be accommodated in accommodating gap 25 and abuts against first latch 24.

It can be understood that, in a normal use state of the display 20, an inner side surface of the limiting groove 23 located at a high position along the vertical direction is the inner abutting surface 232, and the supporting plate 32 abuts against the inner abutting surface 232 to provide a supporting force for the display 20.

As shown in fig. 5, since the accommodating gap 25 is formed between the first latch 24 and the bottom surface 231, and after the second latch 322 is accommodated in the accommodating gap 25, under the action of the gravity of the display 20, the display 20 is pressed against the supporting plate 32, so that the second latch 322 is abutted against the inner abutting surface 232 in the vertical direction, so as to provide a supporting force for the display 20. In this application, under the action of gravity of display 20 itself, second fixture block 322 will insert accommodating gap 25 between first fixture block 24 and bottom surface 231 along vertical direction, and thus second fixture block 322 will be able to prop against first fixture block 24 in the direction perpendicular to wall surface 41, thereby unable to break away from in accommodating gap 25, thereby maintain display 20 and support plate 32 stably connected. In addition, since the first block 24 is located in the limiting groove 23, it is not easy to see, and the simplicity of the overall appearance of the display 20 can be improved.

In the present application, the limiting groove 23 is a rectangular groove, and in other embodiments, the limiting groove 23 may have various shapes such as an oval shape and a triangular shape.

In this application, the first fixture block 24 and the second fixture block 322 are both provided in a plurality, the first fixture blocks 24 and the second fixture blocks 322 are arranged in a one-to-one correspondence manner, and the first fixture blocks 24 are arranged on the inner side abutting surface 232 at intervals. Through setting up a plurality of first fixture blocks 24 and a plurality of second fixture block 322, can improve the support stability of backup pad 32 to display 20 in vertical direction, also can realize stable spacing to display 20 in the direction of perpendicular to wall 41 simultaneously, avoid display 20 to rock along the direction of perpendicular to wall 41.

Referring to fig. 3 to 7, in the present application, the supporting plate 32 includes a supporting block 323 disposed on a periphery of the body 321, and the supporting block 323 can abut against a peripheral wall surface of the limiting groove 23 to limit the supporting plate 32 and the display 20. It is understood that, for the limiting groove 23, it further includes an inner limiting surface 236, and the inner limiting surface 236 is connected to the inner abutting surface 232 and together forms a circumferential wall surface connected to the bottom surface 231 and having a ring shape. In the present application, the limiting groove 23 is a rectangular groove, so that the lower inner surface 233 is opposite to the inner abutting surface 232, and the left inner surface 234 and the right inner surface 235 are connected between the inner abutting surface 232 and the lower inner surface 233, and therefore, the right inner surface 235, the lower inner surface 233, and the left inner surface 234 are sequentially connected to form the inner limiting surface 236. In addition, the supporting block 323 abuts against the peripheral wall surface of the limiting groove 23, so that the supporting plate 32 is prevented from moving in the limiting groove 23 after extending into the limiting groove 23, and the relative position of the supporting plate 32 and the display 20 is limited.

With continued reference to fig. 3 to 7, in the present application, the supporting block 323 continuously extends along the periphery of the body 321, and a notch 324 is formed at a position corresponding to the second latch 322, so that when the second latch 322 extends into the receiving gap 25, the notch 324 is set back to the first latch 24. Meanwhile, the continuously extending supporting block 323 also helps to form a larger area of fit with the peripheral wall surface of the limiting groove 23, thereby realizing stable limiting and stable supporting of the display 20. In other embodiments, the supporting block 323 may also be divided into a plurality of block structures arranged at intervals, and through the cooperation of the respective parts, the supporting block is abutted against the peripheral wall surface of the limiting groove 23 to achieve the limiting effect.

It should be noted that, in the present application, the supporting block 323 and the body 321 are arranged in a step shape. Thus, when the display 20 is connected to the supporting plate 32, the second locking block 322 is inserted into the accommodating gap 25, and then the display 20 is pushed toward the wall surface 41, so that the whole supporting plate 32 completely enters the limiting groove 23. In the installation process, the step between the supporting block 323 and the body 321 can play a role of avoiding, so that the supporting plate 32 can enter the limiting groove 23, and after the installation is completed, the supporting block 323 abuts against the peripheral wall surface of the limiting groove 23 to limit.

With continued reference to fig. 3 to 7, in the present application, the supporting plate 32 is provided with a first magnetic member 33, and the display 20 is provided with a second magnetic member (not shown), which can attract the first magnetic member 33 when the supporting plate 32 is accommodated in the limiting groove 23. Through the attraction of the first magnetic attraction piece 33 and the second magnetic attraction piece, the binding force between the support plate 32 and the display 20 can be increased, and the possibility of separating the support plate 32 from the display 20 is reduced.

Further, the attracting force of the first magnetic attraction piece 33 and the second magnetic attraction piece is perpendicular to the wall surface 41, so that the display 20 cannot be far away from the wall surface 41 in the direction perpendicular to the wall surface 41, and the back side surface 22 is stably maintained to be attached to the wall surface 41.

Specifically, the first magnetic attraction element 33 is embedded in the supporting plate 32, so that the first magnetic attraction element 33 can be prevented from protruding out of the supporting plate 32 and occupying space in a direction perpendicular to the wall surface 41, and the first magnetic attraction element 33 can be prevented from adversely affecting the attachment of the rear side surface 22 and the wall surface 41. Specifically, the second magnetic member is located inside the display 20 and corresponds to the limiting groove 23. Through inhale the piece with the second magnetism and set up inside display 20, can need not to inhale the piece in spacing groove 23 for the second magnetism and set up mounting structure, reduce the complexity of installation. It can be understood that one of the first magnetic attraction member 33 and the second magnetic attraction member is a magnet, and the other is an iron sheet, or both the first magnetic attraction member 33 and the second magnetic attraction member are magnets.

In this application, the first magnetic attraction piece 33 and the second magnetic attraction piece are respectively a plurality of, and the plurality of first magnetic attraction pieces 33 and the plurality of second magnetic attraction pieces are arranged in a one-to-one correspondence manner. Specifically, the number of the first magnetic attraction pieces 33 is four, and the four first magnetic attraction pieces 33 are distributed at four corner positions of the supporting plate 32.

With continued reference to fig. 3-7, in particular, in the present application, the support plate 32 has a first mating surface 325 abutting against the wall surface 41 and a second mating surface 326 opposite to the first mating surface 325. The second mating surface 326 can be attached to the bottom surface 231 of the limiting groove 23 when the supporting plate 32 is accommodated in the limiting groove 23. In the present application, the support plate 32 extends in a flat plate shape closely to the wall surface 41, such that the first engagement surface 325 is closely attached to the wall surface 41, and the second engagement surface 326 is distant from the wall surface 41. After the display 20 is connected to the supporting plate 32, the second mating surface 326 is attached to the bottom surface 231 of the limiting groove 23, so that the contact area between the display 20 and the mounting base 30 can be increased, and the connection stability between the display 20 and the mounting base 30 can be improved. In addition, by tightly attaching the first mating surface 325 to the wall surface 41, the opening depth of the limiting groove 23 can be reduced while the rear surface 22 is kept attached to the wall surface 41, which is helpful for expanding the internal space of the display 20 or meeting the design requirement of the display 20 for being light and thin.

In the present application, the support plate 32 extends in a ring shape along the circumferential direction of the main body 31, and is formed with a mounting space inside. The mounting seat 30 includes a connecting plate 34 connected to the main body 31, the connecting plate 34 is located in the mounting space (not shown), and has a connecting surface 341 coplanar with the second mating surface 326, and the connecting surface 341 can be attached to the bottom surface 231 of the limiting groove 23. It can be understood that the supporting plate 32 is located at the periphery of the connecting plate 34 and can abut against the display 20 in the vertical direction to provide a supporting force, and by dividing the supporting plate 32 and the connecting plate 34 into two parts, the influence of the supporting plate 32 on the connecting plate 34 when the supporting plate is deformed by a force can be reduced, thereby helping to maintain the connecting surface 341 of the connecting plate 34 to be better attached to the bottom surface 231 of the limiting groove 23.

Further, the connecting plate 34 and the main body 31 together define an accommodating space 35, a circuit board 36 is disposed in the accommodating space 35, the connecting surface 341 is provided with a second plug port 37 electrically connected to the circuit board 36, the bottom surface 231 of the limiting groove 23 is provided with a first plug port 26, and the first plug port 26 can be plugged into the second plug port 37. It will be appreciated that by providing the first plug port 26 and the second plug port 37 in a plug-in fit, the circuit board 36 can be electrically connected to the display 20 without providing an additional electrical connection line for supplying power to the display 20. In addition, the first plug port 26 and the second plug port 37 are plugged together in a simple and convenient manner, and the clamping fit between the support plate 32 and the display 20 is not affected. In addition, since the support plate 32 and the connection plate 34 are divided into two parts, when the support plate 32 bears the pressure of the display 20, the connection plate 34 can be prevented from being deformed, thereby helping to maintain the accurate insertion of the second insertion port 37 on the connection plate 34 with the first insertion port 26 in the limiting groove 23. Specifically, the first plug port 26 and the second plug port 37 are pin header plug ports capable of being matched with each other.

It should be noted that, generally, the wall 40 is embedded into the embedded box 50 in advance during the construction stage, and the electrical connection lines and the data transmission lines are connected into the embedded box 50. The main body 31 can be received in the fastener cartridge 50 and completely positioned in the wall 40. Furthermore, the main body 31 is provided with a through hole 311, and the electrical connection line and the data transmission line enter the main body 31 through the through hole 311 and are connected with the circuit board 36 inside the main body 31.

Further, the supporting plate 32 is provided with a connecting hole 327, a connecting seat 51 is arranged in the embedded box 50, and the threaded connecting piece is connected with the connecting seat 51 after penetrating through the connecting hole 327, so that the mounting seat 30 is connected with the embedded box 50. Specifically, the connecting hole 327 is a stepped hole, so that the cap end of the threaded connector will not protrude from the second mating surface 326, thereby facilitating the second mating surface 326 to be attached to the bottom surface 231. Furthermore, the outer wall surface of the main body 31 is surrounded with a positioning groove 312, and the outer wall surface of the connecting seat 51 is matched with the positioning groove 312, so that the embedded box 50 can be positioned on the mounting seat 30.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A display mounting structure, comprising:

the display comprises a front side surface and a rear side surface opposite to the front side surface, wherein the rear side surface is provided with a limiting groove; and

the mounting seat comprises a main body and a supporting plate connected with the main body; the main body is embedded in the wall body; the supporting plate protrudes out of the wall body and can be contained in the limiting groove, and the supporting plate is detachably connected with the display and can support the display in the vertical direction;

after the supporting plate is connected with the display, the back side face can be tightly attached to the wall face of the wall body.

2. The display mounting structure of claim 1, wherein the support plate is engaged with the display in the limiting groove.

3. The display mounting structure according to claim 2, wherein the limiting groove has a bottom surface and an inner abutting surface connected to the bottom surface, and the support plate abuts against the inner abutting surface after being accommodated in the limiting groove to support the display in the vertical direction; the inner side abutting surface is provided with a first clamping block, and the first clamping block and the bottom surface are spaced to form an accommodating gap; the supporting plate comprises a body and a second clamping block arranged on the edge of the body, and the second clamping block can be accommodated in the accommodating gap and is abutted against the first clamping block.

4. The display mounting structure according to claim 3, wherein a plurality of first clips and a plurality of second clips are provided, and the plurality of first clips and the plurality of second clips are provided in one-to-one correspondence; the first clamping blocks are arranged on the inner side abutting surface at intervals.

5. The monitor mounting structure according to claim 3, wherein the supporting plate includes a supporting block disposed at a periphery of the body, and the supporting block can be tightly attached to a peripheral wall surface of the limiting groove to limit the supporting plate and the monitor.

6. The display mounting structure of claim 1, wherein the supporting plate is provided with a first magnetic attraction member, and the display is provided with a second magnetic attraction member, and the second magnetic attraction member can attract the first magnetic attraction member when the supporting plate is accommodated in the limiting groove.

7. The display mounting structure according to claim 6, wherein the first magnetic member is embedded in the supporting plate; and/or the second magnetic part is positioned in the display and corresponds to the limiting groove.

8. The display mounting structure according to any one of claims 1 to 7, wherein the support plate has a first mating surface closely attached to the wall surface and a second mating surface opposite to the first mating surface; the second matching surface can be attached to the bottom surface of the limiting groove when the supporting plate is accommodated in the limiting groove.

9. The display mounting structure according to claim 8, wherein the support plate extends in a ring shape along a circumferential direction of the main body and is formed with a mounting space inside; the mount pad include with the connecting plate that the main part is connected, the connecting plate is located installation space, and have with the coplanar connection face of second fitting surface, connect the face can with the bottom surface of spacing groove is laminated mutually.

10. The display mounting structure according to claim 9, wherein the connecting plate and the main body together define a receiving space, a circuit board is disposed in the receiving space, the connecting plate is provided with a second plug port electrically connected to the circuit board, a bottom surface of the limiting groove is provided with a first plug port, and the first plug port can be plugged with the second plug port.

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