CN216566010U

CN216566010U - Center structure and wall-hung type control device

Info

Publication number: CN216566010U
Application number: CN202122906814.XU
Authority: CN
Inventors: 黄培韬; 唐冠恒; 杨朝仪
Original assignee: ZHONGSHAN WONDERFUL ELECTRONIC THERMAL-CONTROL TECHNOLOGY CO LTD
Current assignee: ZHONGSHAN WONDERFUL ELECTRONIC THERMAL-CONTROL TECHNOLOGY CO LTD
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-17
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a middle frame structure and a wall-hung type control device, wherein the middle frame structure comprises a PCB fixing frame, a display device and a PCB, the PCB fixing frame is provided with a setting position, and the setting position is used for setting a first magnetic suction body; one surface of the display device, which is far away from the PCB fixing frame, is a display screen, and the other surface of the display device, which is close to the PCB fixing frame, is a magnetic metal surface; the PCB is arranged on one side of the PCB fixing frame far away from the display device; compared with the prior art, the middle frame structure has the advantages that the first magnetic attraction body is arranged in the setting position on the PCB fixing frame, one end, close to the display device, of the first magnetic attraction body can magnetically attract a magnetic metal surface on the display device, the connection firmness degree of the display device and the PCB fixing frame is enhanced, meanwhile, the middle frame structure is used for the wall-hung type control device, one end, far away from the PCB fixing frame, of the first magnetic attraction body is directly magnetically attracted with the wall fixing piece, the middle frame structure can be detachably connected with the wall fixing piece, the disassembly and the assembly of a middle frame structure are facilitated, and the assembly difficulty of an installer is reduced.

Description

Center structure and wall-hung type control device

Technical Field

The utility model relates to the technical field of wall-hung control devices, in particular to a middle frame structure and a wall-hung control device.

Background

Along with the improvement of standard of living, the intelligent product in people's daily life is more and more, intelligent control ware appears in people's life as using more general intelligent product, give people's daily life and bring a lot of facilities, intelligent control ware is according to user's user demand, can set up in user's sitting room or door department, the controller that sets up in user's sitting room is used for showing indoor air temperature, humidity, carbon dioxide content etc. to let the user in time know indoor air quality, the controller convenience of customers who sets up in door department knows the condition of visiting and when the abnormal conditions, for user's early warning. But is installed on the wall surface under the control of the living room or the door opening of the room, the controller usually comprises a fixing device and a display device, when the controller is installed, the fixing device is required to be installed on the wall surface firstly, generally, the fixing device is embedded in the wall surface for aesthetic appearance, after the fixing device is embedded in the wall surface, the display device is mounted to the fixing device, and generally, the display device includes a PCB board and a panel, when the display device is connected with the fixing device, the installer needs to connect the PCB board and the panel with the fixing device, because the PCB is provided with a plurality of binding posts, chips, sockets and the like, the technical literacy of an installer is low, the installer only installs the controller mechanically, the installation position of the controller is usually high, in the installation process of an installer, the PCB and the panel are vertically arranged, and if the alignment is not accurate, the PCB and the panel are difficult to assemble in place.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a middle frame structure and a wall-hung type control device, which are used for solving the technical problems.

A center frame structure for a wall-mountable control device, comprising:

the PCB fixing frame is provided with a setting position, and the setting position is used for setting the first magnetic suction body;

the display device is provided with a display screen on one side far away from the PCB fixing frame, and a magnetic metal surface on one side close to the PCB fixing frame, wherein the magnetic metal surface is used for being magnetically attracted by a first magnetic attraction body arranged at a set position so as to be connected with the PCB fixing frame;

and the PCB is arranged on one side of the PCB fixing frame, which is far away from the display device.

According to an embodiment of the present invention, the PCB fixing frame is a thin plate having an avoiding hole therein, and is bent by a force, and the setting position extends toward the middle of the avoiding hole.

According to an embodiment of the present invention, a plurality of setting positions are disposed on the PCB fixing frame, the PCB is a hard sheet, the PCB has a relief portion in a vertical direction and/or a horizontal direction, the relief portion is disposed corresponding to the setting positions, a magnetic attraction force is formed in a direction perpendicular to the PCB by the first magnetic attraction body disposed in the setting positions, and the magnetic attraction force is in a direction of pulling the magnetic metal surface close to the first magnetic attraction body.

According to an embodiment of the present invention, the plurality of setting positions are dispersedly disposed on the PCB fixing frame, so that the plurality of first magnetic attraction bodies are dispersedly disposed, a connection line of the plurality of first magnetic attraction bodies forms a magnetic attraction surface, and a projection of a geometric center of the display device and/or the PCB on a vertical plane is located in the magnetic attraction surface.

According to an embodiment of the present invention, a plurality of elastic conductive portions are disposed on a side of the PCB facing the magnetic metal surface, the elastic conductive portions are electrically connected to the magnetic metal surface to form the same electromotive force, and the elastic conductive portions are abutted to the magnetic metal surface or the elastic conductive portions are elastically abutted to the magnetic metal surface.

According to an embodiment of the present invention, the plurality of elastic conductive portions are arranged in a dispersed manner, a thrust surface is formed by connecting lines of the plurality of elastic conductive portions, and a projection of a geometric center of the display device and/or the PCB board on a vertical plane is located in the thrust surface.

According to an embodiment of the utility model, a clamping groove is arranged on one side of the PCB fixing frame corresponding to the PCB, an elastic pressing piece is arranged on the other side of the PCB corresponding to the clamping groove, the elastic pressing piece can be elastically broken, and after the clamping groove is used for placing the corresponding edge of the PCB in position, the elastic pressing piece is elastically reset so as to be pressed on the PCB.

The utility model provides a wall-hung type controlling means, includes foretell center structure, still includes the casing, is equipped with first magnet on the casing and sets up the portion, and first magnet sets up the portion and corresponds with setting up the position, and first magnetism is inhaled in the body is located first magnet and is set up the portion, and display device's magnetism metal covering is connected with the casing through first magnetism in the first magnet sets up the portion, is formed with the holding chamber between casing and PCB board mount, and the PCB board sets up in the holding intracavity.

According to an embodiment of the present invention, a fastening groove is formed on one side of the PCB board fixing frame where the setting position is provided, a fastening buckle is arranged on the housing, and the PCB board fixing frame and the housing are fastened to the fastening groove through the fastening buckle.

According to an embodiment of the present invention, the display device further includes a magnetic attraction fixing device, the magnetic attraction fixing device is configured to be disposed in a wall body, a magnetic attraction fixing portion is disposed on an outer end surface of the magnetic attraction fixing device, a second magnetic attraction body is disposed in the magnetic attraction fixing portion, one end of the first magnetic attraction body close to the display device is magnetically attracted to the magnetic metal surface, and one end of the first magnetic attraction body close to the magnetic attraction fixing device is magnetically attracted to the second magnetic attraction body.

Compared with the prior art, the middle frame structure has the advantages that the first magnetic attraction body is arranged in the setting position on the PCB fixing frame, one end, close to the display device, of the first magnetic attraction body can magnetically attract a magnetic metal surface on the display device, the connection firmness degree of the display device and the PCB fixing frame is enhanced, meanwhile, the middle frame structure is used for the wall-hung type control device, one end, far away from the PCB fixing frame, of the first magnetic attraction body is directly magnetically attracted with the wall fixing piece, the middle frame structure can be detachably connected with the wall fixing piece, the disassembly and the assembly of a middle frame structure are facilitated, and the assembly difficulty of an installer is reduced.

Drawings

Fig. 1 is an exploded view of a wall-mounted control device having a center frame structure;

FIG. 2 is a schematic view of FIG. 1 in another orientation;

FIG. 3 is a perspective view of the wall-mountable control device having a center frame structure mounted to a wall surface;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view F-F of FIG. 3;

in the figure: the magnetic circuit board comprises a PCB fixing frame, a set position 11, a set position 12, a clamping groove 13, an elastic pressing piece 14, a clamping groove 15, a concave position 16, a second inclined edge, a first magnetic absorption body 2, a display device 3, a display screen 31, a magnetic metal surface 32, a PCB board 4, a position-giving part 41, a position-giving part 411, a first inclined edge 412, a vacancy 42, an elastic conductive part 5, a shell 51, a first magnetic body setting part 52, a clamping buckle 6, a magnetic absorption fixing device 61, a box body 611, an installation plate fixing column 62, an installation plate 621, a magnetic absorption fixing part 7, a second magnetic absorption body

The implementation and advantages of the functions of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indicators (such as up, down, left and right, front and back … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

For a further understanding of the contents, features and effects of the present invention, the following examples are illustrated in the accompanying drawings and described in the following detailed description:

referring to fig. 1 and 2, the middle frame structure of the present embodiment is used for a wall-mounted control device, and includes a PCB board fixing frame 1, a display device 3 and a PCB board 4, where the PCB board fixing frame 1 is provided with a setting position 11, and the setting position 11 is used for setting a first magnetic attraction body 2; one surface of the display device 3, which is far away from the PCB fixing frame 1, is a display screen 31, one surface of the display device, which is close to the PCB fixing frame 1, is a magnetic metal surface 32, and the magnetic metal surface 32 is magnetically attracted by the first magnetic attraction body 2 arranged at the setting position 11, so that the display device 3 is connected with the PCB fixing frame 1; the PCB 4 is arranged on one side of the PCB fixing frame 1 far away from the display device 3. In the middle frame structure of the embodiment, the PCB 4 is fixed through the PCB fixing frame 1, and then the display device 3 and the PCB 4 are connected with the display device 3 through the first magnetic suction body 2 arranged in the setting position 11 in a magnetic suction manner, so that the display device 3 and the PCB 4 are both connected with the PCB fixing frame 1 and positioned at two sides of the PCB fixing frame 1, when the middle frame structure is used for a wall-hung type control device, the display device 3 can be installed in place only by assembling the PCB fixing frame 1 to the setting position of the wall-hung type control device, and the positioning problem of the display device 3 and the PCB 4 in the assembling process is reduced; during the specific application, in order to make display device 3 and PCB board mount 1 firm in connection, one side that display device 3 was equipped with magnetic metal face 32 is equipped with powerful double faced adhesive tape, powerful double faced adhesive tape sets up around magnetic metal face 32, when being connected display device 3 and PCB board mount 1, first magnetism is inhaled 2 one end towards display device 3 and will be inhaled with magnetic metal face 32 magnetism and be connected, can make the firm degree that increases display device 3 and PCB board mount 1 and be connected, magnetic metal face 32 can be fallen the magnetic force consumption of first magnetism 2 towards the one end of display device 3 simultaneously, can reduce the magnetic attraction of first magnetism 2 towards the one end of display device 3 and produce the signal production interference to display device 3's display screen 31. The center structure of this embodiment, be equipped with first magnetism on PCB board mount 1 in setting position 11 and inhale body 2, the one end that first magnetism is inhaled body 2 and is close to display device 3 can be inhaled magnetism and inhale the magnetic metal face 32 on the display device 3, strengthen the firm degree that display device 3 and PCB board mount 1 are connected, simultaneously when center structure is used for wall-hung type controlling means, can directly inhale with wall mounting magnetism through the one end that first magnetism was inhaled body 2 and was kept away from PCB board mount 1 and be connected, can make center structure and wall mounting can dismantle and be connected, make things convenient for center structure's dismouting, the assembly degree of difficulty that has reduced the installer

Referring to fig. 1 and 2, in the present embodiment, the PCB fixing frame 1 is a sheet shape having an avoiding hole therein, and is capable of being bent by a force, and the setting position 11 extends toward the middle of the avoiding hole. That is to say, PCB board mount 1 is a frame, and the middle part is equipped with dodges the hole, and when PCB board 4 was installed on PCB board mount 1, the hole of dodging on PCB board mount 1 can be followed to the part that needs and display device 3 wiring on PCB board 4 and is passed through, makes PCB board mount 1 both can fix PCB board 4, does not influence PCB board 4 and display device 3's being connected simultaneously again.

Referring to fig. 1 and 2, in the present embodiment, a plurality of setting positions 11 are disposed on the PCB fixing frame 1, the PCB 4 is a hard sheet, the PCB 4 has a position-yielding portion 41 in a vertical direction and/or a horizontal direction, the position-yielding portion 41 is disposed corresponding to the setting position 11, a magnetic attraction force is formed in the first magnetic attraction body 2 disposed on the setting position 11 in a direction perpendicular to the PCB 4, and the magnetic attraction force is directed toward the magnetic metal surface 32 to approach the first magnetic attraction body 2.

Because be provided with the chip in the PCB board 4 and be used for connecting the pin of signal line, still be provided with the copper foil face on the PCB board 4, when the magnetic line of force of first magnetism suction body 2 passed its part of adjusting well with PCB board 4, the copper foil face can reduce the magnetic attraction of first magnetism suction body 2 to magnetic metal face 32 on the PCB board 4, and the chip on the PCB board 4 also can be disturbed in the magnetic attraction of first magnetism suction body 2 simultaneously. Set up the position part 41 of stepping down that dodges first magnetism and inhale body 2 on PCB board 4, and make first magnetism inhale body 2 arrange in setting position 11, when PCB board 4 is connected with PCB board mount 1, setting position 11 on the PCB board mount 1 is adjusted well with the position part 41 of stepping down on the PCB board 4, make first magnetism inhale body 2 not direct to adjust well with PCB board 4, not only can reduce the interference of the magnetic attraction of first magnetism inhale body 2 to the chip on PCB board 4, can also avoid the copper foil on the PCB board 4 to subduct in the face of the magnetic attraction of first magnetism inhale body 2. Referring to fig. 1 and 2, in specific use, the PCB board fixing frame 1 is made of plastic, the setting position 11 is disposed on a side of the PCB board fixing frame 1 away from the display device 3 and protrudes toward a side away from the display device 3, the setting position 11 is a hollow cylinder for accommodating the first magnetic attraction body 2, the cylinder structure of the setting position 11 is a magnetic channel of the first magnetic attraction body 2, a bottom surface of the cylinder setting position 11 is a suction surface of the first magnetic attraction body 2, when the first magnetic attraction body 2 is disposed in the setting position 11, a magnetic force line emitted from one end of the first magnetic attraction body 2 facing the display device 3 passes through the suction surface, and generates an acting force on the magnetic metal surface 32 to pull the magnetic metal surface 32 toward the PCB board fixing frame 1, so that the display device 3 is connected with the PCB board fixing frame 1, 80% of a magnetic flux of one end of the first magnetic attraction body 2 close to the display device 3 passes through the magnetic channel formed by the cylinder structure of the setting position 11, the magnetic attraction can be avoided from interfering with the chip on the PCB board 4.

Referring to fig. 1 and 2, in the present embodiment, a plurality of setting locations 11 are dispersedly disposed on the PCB fixing frame 1, so that a plurality of first magnetic attraction bodies 2 are dispersedly disposed, a connection line of the plurality of first magnetic attraction bodies 2 forms a magnetic attraction surface, and a projection of a geometric center of the display device 3 and/or the PCB 4 on a vertical plane is located in the magnetic attraction surface. When the display device is used specifically, four setting positions 11 are arranged on the PCB fixing frame 1, a first magnetic suction body 2 is arranged in each setting position 11, the connecting lines of the four first magnetic suction bodies 2 form a magnetic suction surface, and the projection of the geometric center of the display device 3 on a vertical plane is positioned in the magnetic suction surface; when display device 3 is connected with PCB board mount 1, set up and to have magnetic attraction in the direction of perpendicular to PCB board 4 in the first magnetism body 2 of setting position 11, the direction of magnetic attraction is for drawing the direction of first magnetism body 2 near magnetic metal face 32, that is to say four first magnetism bodies 2 of setting in the position 11 are inhaled with magnetic metal face 32 magnetism towards display device 3's magnetic metal face 32 one end and are connected, can make display device 3 atress even, it is more firm to make display device 3 be connected with PCB board mount 1, because on the PCB board 4 let position portion 41 with set up position 11 and correspond, so in practical application, the geometric center of PCB board 4 also is located magnetic attraction in vertical planar projection.

Referring to fig. 1, in the present embodiment, a plurality of elastic conductive portions 42 are disposed on a side of the PCB 4 facing the magnetic metal surface 32, the elastic conductive portions 42 are electrically connected to the magnetic metal surface 32 to form the same electromotive force, and the elastic conductive portions 42 abut against the magnetic metal surface 32 or the elastic conductive portions 42 abut against the magnetic metal surface 32 elastically. That is to say, after the magnetic metal surface 32 of the display device 3 is magnetically attracted by the first magnetic attraction body 2 and connected to the PCB board fixing frame 1, the magnetic metal surface 32 of the display device 3 presses the plurality of elastic conductive portions 42 on the side of the PCB board 4 facing the magnetic metal surface 32, which not only can increase the potential balance, but also the elastic conductive portions 42 and the magnetic metal surface 32 are elastically abutted to form an acting force that pushes the magnetic metal surface 32 away from the PCB board fixing frame 1, thereby preventing the entire surface of the magnetic metal surface 32 of the display device 3 from being adhered to each other and pressed onto the PCB board 4.

Referring to fig. 1, in the present embodiment, the plurality of elastic conductive portions 42 are distributed, a thrust plane formed by connecting the plurality of elastic conductive portions 42, and a projection of a geometric center of the display device 3 and/or the PCB 4 on a vertical plane is located in the thrust plane. That is, when the elastic conductive portion 42 elastically abuts against the magnetic metal surface 32, the display device 3 and the PCB 4 are simultaneously subjected to the force of the elastic conductive portion 42 and in opposite directions, and in order to balance the force applied to the display device 3 and the PCB 4 by the elastic conductive portion 42, the projection of the geometric center of the display device 3 on the vertical plane is located in the thrust plane, and the projection of the geometric center of the PCB 4 on the vertical plane is also located in the thrust plane.

Referring to fig. 1 and 2, in the present embodiment, a clamping groove 12 is disposed on one side of the PCB fixing frame 1 corresponding to the PCB 4, an elastic pressing member 13 is disposed on the other side corresponding to the PCB 4, the elastic pressing member 13 can be elastically broken, and after the clamping groove 12 is disposed at the corresponding edge of the PCB 4 in position, the elastic pressing member 13 is elastically restored to be pressed on the PCB 4. During specific application, the clamping groove 12 is located on one side, close to the display device 3, of the PCB fixing frame 1, the clamping groove 12 is formed by inward extension of the edge of the avoiding hole of the PCB fixing frame 1, the surface, away from the display device 3, of the clamping groove 12 is lower than the surface, away from the display device 3, of the PCB fixing frame 1, the surface, away from the display device 3, of the clamping groove 12 is used for supporting the PCB 4, the elastic pressing piece 13 is arranged on one side, away from the display device 3, of the PCB fixing frame 1 and located on the edge of the avoiding hole of the PCB fixing frame 1, the action surface of the elastic pressing piece 13 faces the magnetic metal surface 32, after the side edge of the PCB 4 is arranged in the clamping groove 12 and supported by the clamping groove 12, the elastic pressing piece 13 presses the PCB 4 to be away from one side, away from the display device 3, and fixes the PCB 4 in the PCB fixing frame 1.

Referring to fig. 1 and fig. 2, in the present embodiment, a concave portion 15 adapted to the PCB 4 is formed on a side of the PCB fixing frame 1 away from the display device 3 along an edge of the avoiding hole of the PCB fixing frame 1 in a reference plane, and a height of the concave portion 15 is less than a half of a thickness of the PCB 4. When the PCB 4 is installed on the PCB fixing frame 1, the PCB 4 is arranged in the concave position 15, so that the side edge of the PCB 4 is supported by the concave position 15, meanwhile, the PCB 4 is tightly clamped from two sides of the PCB 4 by the clamping groove 12 and the elastic pressing piece 13 on the PCB fixing frame 1, the PCB 4 is firmly installed in the PCB fixing frame 1, and meanwhile, the functional modules on the PCB 4 are exposed out of the avoiding holes of the PCB fixing frame 1.

Referring to fig. 1 and fig. 2, in the present embodiment, the positioning portion 41 on the PCB 4 includes a first oblique edge 411 and a hollow portion 412, the first oblique edge 411 inclines towards a center line of the PCB 4, the hollow portion 412 is connected to an inner end of the first oblique edge 411, the PCB fixing frame 1 is provided with a second oblique edge 16, the hollow portion 412 and the first oblique edge 411 and the second oblique edge 16 on the setting position 11 are symmetrical to a center line of the first magnetic attraction body 2 in the setting position 11, after the PCB 4 is mounted on the PCB fixing frame 1, each hollow portion 412 corresponds to one setting position 11, the first oblique edge 411 connected to the hollow portion 412 and the second oblique edge 16 connected to the setting position 11 abut against each other, and the PCB 4 is conveniently mounted on the PCB fixing frame 1. In practical application, be equipped with four on the PCB board mount 1 and set position 11, every first magnetism suction means 2 sets up position 11 with a first magnet on the PCB board mount 1 and corresponds, when PCB board 4 is installed on PCB board mount 1, every on the PCB board mount 1 sets up vacancy 412 that position 11 all corresponds from PCB board 4 and passes, second hypotenuse 16 that corresponds with every on setting position 11 on the PCB board mount 1 docks with the first hypotenuse 411 that corresponds on PCB board 4 respectively, four second hypotenuses 16 on the PCB mount 6 carry on spacingly from four directions to PCB board 4 respectively, when PCB board 4 is installed on PCB board mount 1, can avoid PCB board 4 to shift.

Referring to fig. 1 and 2, the utility model further relates to a wall-mounted control device, which includes the middle frame structure, and further includes a housing 5, wherein the housing 5 is provided with a first magnet installation portion 51, the first magnet installation portion 51 corresponds to the installation position 11, the first magnetic attraction body 2 is arranged in the first magnet installation portion 51, the magnetic metal surface 32 of the display device 3 is connected with the housing 5 through the first magnetic attraction body 2 in the first magnet installation portion 51, an accommodation cavity is formed between the housing 5 and the PCB board fixing frame 1, and the PCB board 4 is arranged in the accommodation cavity.

Referring to fig. 1 to 5, for clarity of description, a surface of the wall-mounted control device, where the housing 5 is connected to the middle frame structure, is referred to as a first side, and the other side is referred to as a second side, the first side of the housing 5 is provided with a first magnet installation portion 51, the first magnet installation portion 51 protrudes outward from a reference surface of the first side of the housing 5, the first magnetic element 2 is disposed in the first magnet installation portion 51, when the PCB board fixing frame 1 is connected to the housing 5, the installation portion 11 on the PCB board fixing frame 1 is sleeved on the first magnet installation portion 51, a gap between the first side of the housing 5 and the side of the PCB board fixing frame 1 facing the housing 5 forms an accommodation cavity, the PCB board 4 is disposed in the accommodation cavity after the PCB board fixing frame 1 is connected to the housing 5, one end of the first magnetic element 2 close to the display device 3 is magnetically connected to the magnetic metal surface 32 of the display device 3, the display device 3 is connected to the housing 5, and the PCB board holder 1 and the PCB board 4 connected to the PCB board holder 1 are fixed to the housing 5.

Referring to fig. 1, fig. 2 and fig. 5, in the present embodiment, a fastening groove 14 is formed on one side of the PCB board fixing frame 1 where the setting position 11 is formed, a fastening 52 is formed on the housing 5, and the PCB board fixing frame 1 and the housing 5 are fastened to the fastening groove 14 through the fastening 52. That is, when the wall-hung type control device is fixed on the wall surface, the housing 5 and the middle frame structure are both vertically arranged, that is, when the PCB board fixing frame 1 is subjected to the extrusion force of the display device 3 to the housing 5, the PCB board fixing frame 1 is also subjected to the gravity of the PCB board fixing frame 1 and the gravity of the display device 3 and the PCB board 4 connected thereto, the sum of the gravity of the PCB board fixing frame 1 and the gravity of the display device 3 and the PCB board 4 connected thereto is the gravity of the middle frame structure, and the gravity of the middle frame structure is perpendicular to the direction of the magnetic attraction force of the first magnetic attraction body 2, when the first magnetic attraction body 2 magnetically attracts the magnetic metal surface 32 of the display device 3, the pressure of the magnetic attraction acting on the PCB fixing frame 1 causes a friction force to be generated between the PCB fixing frame 1 and the shell 5, the friction force is greater than the gravity of the middle frame structure, so that the PCB fixing frame 1 can not slide down on the shell 5. However, when the middle frame structure is subjected to an external force, the balance between the gravity and the friction of the middle frame structure is easily broken, and in this case, the middle frame structure is easily separated from the housing 5. Therefore, in order to firmly connect the middle frame structure and the casing 5, the side of the PCB board fixing frame 1, which is provided with the setting position 11, is provided with the fastening groove 14, the casing 5 is provided with the fastening 52, the middle frame structure needs to be assembled with the casing 5 together, the end of the PCB board fixing frame 1, which is provided with the setting position 11, is fastened to the casing 5, the fastening 52 on the casing 5 is fastened into the fastening groove 14 on the PCB board fixing frame 1, and the middle frame structure is firmly connected with the casing 5.

Referring to fig. 1 and fig. 2, the wall-hung control device of the present embodiment further includes a magnetic attraction fixing device 6, the magnetic attraction fixing device 6 is disposed in the wall, a magnetic attraction fixing portion 621 is disposed on an outer end surface of the magnetic attraction fixing device 6, a second magnetic attraction body 7 is disposed in the magnetic attraction fixing portion 621, one end of the first magnetic attraction body 2 close to the display device 3 is magnetically attracted to the magnetic metal surface 32, and one end of the first magnetic attraction body 2 close to the magnetic attraction fixing device 6 is magnetically attracted to the second magnetic attraction body 7. During specific application, fixing device 6 is inhaled to magnetism includes box body 61, box body 61 is used for installing in the wall body, be equipped with the line hole on box body 61, display device 3 and PCB board 4's soft external connection line or can pass line hole and the internal circuit connection of wall with the signal line of easily inserting interface connection on the box body 61, inhale fixing device 6's outer terminal surface of magnetism, the face that also is located the wall body outside box body 61 is equipped with magnetism and inhales fixed part 621, it inhales the fixed part 621 to be provided with second magnetism in the magnetism and inhales body 7, the magnetism face of inhaling of 5 second sides of casing is inhaled body 2 and is inhaled the second magnetism of the outer terminal surface of fixing device 6 and inhale the body 7 magnetism and be connected through first magnetism, so that casing 5 and magnetism are inhaled 6 and are inhaled and be connected.

Referring to fig. 1 and fig. 2, in the present embodiment, the second magnetic attraction body 7 can be magnetically connected to the magnetic attraction fixing portion 621 on the outer end surface of the box body 61, at this time, the magnetic attraction fixing portion 621 is made of metal material, when the second magnetic attraction body 7 is inserted into the magnetic attraction fixing portion 621, the second magnetic attraction body 7 is magnetically connected with the magnetic attraction fixing part 621, the second magnetic attraction body can also be embedded into the magnetic attraction fixing part 621, at this time, a through hole is arranged at one end of the magnetic attraction fixing part 621 far away from the front, the inner diameter of the through hole is smaller than the outer diameter of the second magnetic attraction body 7, the second magnetic attraction body 7 is arranged in the magnetic attraction fixing part 621, one end of the second magnetic attraction body 7 far away from the wall body can be magnetically connected with the first magnetic attraction body 2 in the first magnetic attraction body arrangement part 51 of the housing 5 through the through hole of the magnetic attraction fixing part 621, meanwhile, the through hole of the magnetic attraction fixing part 621 can also limit the second magnetic attraction body 7, so that the second magnetic attraction body 7 is prevented from running out of the magnetic attraction fixing part 621.

Referring to fig. 1 and fig. 2, in the present embodiment, the magnetic fixing device 6 further includes a mounting plate 62, the mounting plate 62 is connected to the outer end surface of the box body 61, and the magnetic fixing portion 621 is disposed on the mounting plate 62. In practical application, the mounting plate 62 is made of sheet metal, the magnetic attraction fixing portion 621 is disposed on the mounting plate 62, and one side of the mounting plate 62 away from the box body 61 protrudes outward, the second magnetic attraction body 7 is disposed in the magnetic attraction fixing portion 621, and is magnetically attracted to the magnetic attraction fixing portion 621 through magnetic attraction force.

Referring to fig. 1 and 2, in the embodiment, the box body 61 has an opening, the opening is provided with an installation plate fixing column 611, the installation plate 62 is provided with a screw hole corresponding to the installation plate fixing column 611, and the size of the installation plate 62 is larger than the size of the opening of the box body 61, when the installation plate 62 is connected with the box body 61, the screw hole on the installation plate 62 corresponds to the installation plate fixing column 611 on the box body 61, and then the screw passes through the screw hole on the installation plate 62 to be connected with the installation plate fixing column 611, so that the installation plate 62 is connected with the box body 61. In specific application, in order to firmly connect the mounting plate 62 and the box body 61, two mounting plate fixing columns 611 are symmetrically arranged on two sides of the box body 61 along the center line of the box body 61, two screw holes are formed in the mounting plate 62, each screw hole corresponds to one mounting plate fixing column 611, and two screws respectively penetrate through one screw hole to be screwed with the corresponding mounting plate fixing column 611, so that the mounting plate 62 and the box body 61 are firmly connected.

The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A center structure for a wall-hung control device, comprising:

the PCB fixing frame (1) is provided with a setting position (11), and the setting position (11) is used for setting the first magnetic suction body (2);

the display device (3) is provided with a display screen (31) on one surface far away from the PCB fixing frame (1) and a magnetic metal surface (32) on one surface close to the PCB fixing frame (1), and the magnetic metal surface (32) is used for being magnetically attracted by a first magnetic attraction body arranged at the setting position (11) so that the display device (3) is connected with the PCB fixing frame (1);

and the PCB (4) is arranged on one side of the PCB fixing frame (1) far away from the display device (3).

2. The middle frame structure according to claim 1, wherein the PCB board fixing frame (1) is a thin plate having a relief hole therein, and is bendable by a force, and the setting bit (11) extends toward the middle of the relief hole.

3. The middle frame structure of claim 1, wherein the PCB fixing frame (1) is provided with a plurality of setting positions (11), the PCB (4) is in a shape of a hard sheet, the PCB (4) is provided with a position-giving part (41) in a vertical direction and/or a horizontal direction, the position-giving part (41) is arranged corresponding to the setting positions (11), a first magnetic attraction body (2) arranged in the setting positions (11) is formed with a magnetic attraction force in a direction perpendicular to the direction of the PCB (4), and the magnetic attraction force is in a direction that the magnetic metal surface (32) is drawn close to the first magnetic attraction body (2).

4. The middle frame structure according to claim 3, wherein a plurality of the setting positions (11) are dispersedly arranged on the PCB fixing frame (1), so that a plurality of the first magnetic attraction bodies (2) are dispersedly arranged, a connecting line of the plurality of the first magnetic attraction bodies (2) forms a magnetic attraction surface, and a projection of a geometric center of the display device (3) and/or the PCB (4) on a vertical plane is located in the magnetic attraction surface.

5. The middle frame structure according to claim 1, wherein a plurality of elastic conductive portions (42) are provided on a side of the PCB (4) facing the magnetic metal surface (32), the elastic conductive portions (42) are electrically connected to the magnetic metal surface (32) to form the same electromotive force, and the elastic conductive portions (42) are abutted against the magnetic metal surface (32) or the elastic conductive portions (42) are elastically abutted against the magnetic metal surface (32).

6. The middle frame structure according to claim 5, wherein a plurality of the elastic conductive portions (42) are arranged in a dispersed manner, a thrust surface is formed by connecting lines of the plurality of the elastic conductive portions (42), and a projection of a geometric center of the display device (3) and/or the PCB board (4) on a vertical plane is located in the thrust surface.

7. The middle frame structure according to claim 1, wherein a clamping groove (12) is formed on one side of the PCB fixing frame (1) corresponding to the PCB (4), an elastic pressing piece (13) is arranged on the other side corresponding to the PCB (4), the elastic pressing piece (13) can be elastically bent open, and after the clamping groove (12) places the corresponding edge of the PCB (4) in position, the elastic pressing piece (13) is elastically reset so as to be pressed on the PCB (4).

8. A wall-hung type control device comprises the middle frame structure as claimed in any one of claims 1 to 7, and further comprises a housing (5), wherein the housing (5) is provided with a first magnet setting part (51), the first magnet setting part (51) corresponds to the setting position (11), the first magnetic attraction body (2) is arranged in the first magnet setting part (51), the magnetic metal surface (32) of the display device (3) is connected with the housing (5) through the first magnetic attraction body (2) in the first magnet setting part (51), an accommodating cavity is formed between the housing (5) and the PCB fixing frame (1), and the PCB (4) is arranged in the accommodating cavity.

9. A wall-hung control device as claimed in claim 8, wherein the side of the PCB fixing frame (1) provided with the setting position (11) is provided with a buckle groove (14), the housing (5) is provided with a buckle (52), and the PCB fixing frame (1) and the housing (5) are buckled with the buckle groove (14) through the buckle (52).

10. The wall-hung control device of claim 9, further comprising a magnetic attraction fixing device (6), wherein the magnetic attraction fixing device (6) is arranged in a wall body, the outer end face of the magnetic attraction fixing device (6) is provided with a magnetic attraction fixing portion (621), a second magnetic attraction body (7) is arranged in the magnetic attraction fixing portion (621), one end of the first magnetic attraction body (2) close to the display device (3) is magnetically attracted to the magnetic metal surface (32) and connected, and one end of the first magnetic attraction body (2) close to the magnetic attraction fixing device (6) is magnetically attracted to the second magnetic attraction body (7) and connected.