Pluggable motor device, mechanical pixel display unit and display system

Abstract

The present application discloses a pluggable motor device, a mechanical pixel display unit and a display system. The motor assembly includes a motor body, an adapter board and a gold finger. The gold finger is arranged on the adapter board, and the motor body is electrically connected to the gold finger. A slot is formed on the PCB main board, and a contact piece is arranged in the slot. The slot is for the adapter board to be inserted, and the gold finger is electrically connected to the contact piece, so that the PCB main board is electrically connected to the motor body. The technical solution provided by the present application can solve the problem in the prior art that the motor cannot be disassembled from the PCB board.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a pluggable motor device, a mechanical pixel display unit and a display system. Background Art

[0002] Existing motors are usually fixed on the control circuit PCB board by pin welding. The host computer program on the PCB board can conveniently control the motor drive and drive the motor to operate. However, the motor is welded on the PCB board, which is not conducive to the disassembly and assembly of the motor, and is also not conducive to the subsequent maintenance and replacement after the motor is damaged. Summary of the invention

[0003] The present application provides a pluggable motor device, a mechanical pixel display unit and a display system, which can solve the problem in the prior art that the motor cannot be disassembled from the PCB board.

[0004] In a first aspect, the present invention provides a pluggable motor device, comprising:

[0005] The motor assembly includes a motor body, an adapter plate, and a gold finger, wherein the gold finger is disposed on the adapter plate, and the motor body is electrically connected to the gold finger; and

[0006] The PCB main board is formed with a slot, in which a contact piece is arranged, the slot is for the adapter board to be inserted, and the gold finger is electrically connected to the contact piece, so that the PCB main board is electrically connected to the motor body.

[0007] In the above implementation process, when the adapter board of the motor assembly is inserted into the slot on the PCB main board, the gold finger on the adapter board is electrically connected to the contact piece, so that the PCB main board is electrically connected to the motor body, and the motor body can be conveniently controlled by the host computer program on the PCB main board. If the motor assembly fails and needs maintenance, the motor assembly can be directly pulled out from the PCB main board for maintenance. At the same time, if the motor assembly needs to be replaced, or the motor assembly needs to be transferred from one PCB main board to another PCB main board, the motor assembly can be disassembled and assembled only by plugging and unplugging. Therefore, the pluggable motor device disclosed in the present application can be applied to a large number of matrix motor control systems that require quick and easy replacement.

[0008] In an optional embodiment, the adapter board is formed with a motor drive circuit and a lead socket, and the motor drive circuit is connected to the lead socket and the gold finger;

[0009] The motor body comprises a motor and a motor lead, the motor lead is connected to the motor, and the motor lead is plugged into a lead socket.

[0010] In the above implementation process, the control circuit on the PCB main board is connected to the motor lead through the gold finger and the drive circuit, which can effectively control the motor body. At the same time, if the motor drive circuit, the motor body or the gold finger fails, the motor body or the adapter board can be removed and maintained separately.

[0011] In an optional embodiment, the pluggable motor device includes a mounting assembly, and the mounting assembly is formed with an opening;

[0012] The motor assembly is disposed in the mounting assembly, and the gold finger is exposed in the opening;

[0013] The mounting assembly is detachably connected to the PCB main board.

[0014] In the above implementation process, the mounting assembly encapsulates the motor assembly, effectively protecting the motor assembly. The gold finger is exposed in the opening and can be easily inserted into the slot on the PCB main board.

[0015] In an optional embodiment, the mounting assembly includes a base and a cover, and the opening is formed at a bottom end of the base;

[0016] A motor mounting frame and a limiting groove are formed at the top of the base, the motor body is supported on the motor mounting frame, and the adapter plate is arranged in the limiting groove;

[0017] The cover is connected to the top of the base, and the motor body is located inside the cover.

[0018] During the above implementation, the motor body can be effectively supported on the motor mounting frame, reducing the vibration amplitude of the motor body during operation; the limit groove can effectively position the adapter plate, improving the installation efficiency of the adapter plate. It should be noted that the base is formed with a groove, so that when the base is connected to the PCB mainboard, the slot can be accommodated, so that the base and the surface of the PCB mainboard fit. It should be noted that the base and / or the cover are formed with a hole for the output shaft of the power supply motor to extend.

[0019] In an optional embodiment, the motor mounting frame includes two support plates, the two support plates are spaced apart, and the end surfaces of the support plates are formed with arc-shaped grooves;

[0020] The limiting groove is located between the two supporting plates.

[0021] During the above implementation, the surface of the motor can fit on the surface of the arc-shaped groove, and the two support plates support the motor together. The limit groove is located between the two support plates, and the size of the limit groove corresponds to the size of the adapter plate to ensure that the adapter plate can be embedded in the limit groove and does not shake relative to the limit groove. The opening is located below the base and is connected to the limit groove. The gold finger is exposed to the opening. When the base is connected to the PCB mainboard, the gold finger can be inserted into the slot and contact the contact piece. At the same time, the motor leads can be arranged between the two support plates to prevent the motor leads from interfering with the assembly of the motor, the corner plate and the base.

[0022] In an optional embodiment, the cover is formed with a receiving cavity and a support foot, the cover is connected to the base by screws passing through the support foot, and the motor mounting bracket and the limiting groove are located in the receiving cavity.

[0023] During the above implementation, when the cover is connected to the base, the cover can accommodate the motor mounting frame, the motor and the adapter plate, that is, the motor mounting frame, the motor and the adapter plate are within the orthographic projection range of the accommodating cavity.

[0024] In an optional embodiment, the base is configured with two claws, and the two claws are respectively arranged on two opposite sides of the base;

[0025] The PCB main board is formed with a clamping hole corresponding to the clamping claw, and the clamping claw is clamped in the clamping hole.

[0026] During the above implementation process, the base is engaged with the PCB main board through two claws to ensure that the motor assembly is stably located on the PCB main board and prevent the motor assembly from being separated from the PCB main board; at the same time, since the claws and the holes are used for connection, the maintenance personnel can easily remove the base from the PCB main board.

[0027] In an optional embodiment, the base is formed with a fixed support plate, and the fixed support plate is formed with a first screw hole;

[0028] The PCB main board is formed with a second screw hole;

[0029] The pluggable motor device also includes a screw and a patch nut. The screw passes through the first screw hole and the second screw hole and is connected with the patch nut.

[0030] In the above implementation process, the base and the PCB main board are fixed with screws, which can effectively improve the connection stability between the base and the PCB main board; at the same time, the removal of the screws is simple and does not affect the efficiency of removing the base from the PCB main board.

[0031] In a second aspect, the present invention provides a mechanical pixel display unit, comprising a cylinder, a flip plate and a pluggable motor device of any one of the above items, the cylinder is arranged on a PCB mainboard, the flip plate is located in the cylinder and connected to the output shaft of the pluggable motor device, and the output shaft of the pluggable motor device drives the flip plate to rotate in the cylinder.

[0032] In a third aspect, the present invention provides a mechanical pixel display system, comprising a cylinder, a flap, and any one of the above-mentioned pluggable motor devices;

[0033] There are multiple cylinders, flaps and motor assemblies, and the numbers of the three are the same. Multiple cylinders are arranged on a PCB main board, and the output shaft of the pluggable motor device drives the corresponding flap to rotate in the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 Schematic diagram of the motor assembly and PCB mainboard in this embodiment;

[0036] Figure 2 is a schematic diagram of a pluggable motor device in this embodiment;

[0037] Figure 3 for Figure 2 Cross-section view from medium AA perspective;

[0038] Figure 4 is a three-dimensional exploded view of the pluggable motor device in this embodiment;

[0039] Figure 5 A schematic diagram showing the motor in this embodiment when supported on a motor mounting frame is shown;

[0040] Figure 6 is a schematic diagram of a mechanical pixel display unit in this embodiment;

[0041] Figure 7 FIG. 4 is a schematic diagram of a mechanical pixel display system in this embodiment.

[0042] icon:

[0043] 10- pluggable motor device;

[0044] 100-motor assembly; 101-motor body; 102-adapter board; 103-gold finger; 104-lead socket; 105-motor; 106-motor lead;

[0045] 110-PCB main board; 111-slot; 112-contact sheet;

[0046] 120-installation assembly; 121-base; 122-cover; 123-motor mounting frame; 124-limiting groove; 125-support plate; 126-accommodating cavity; 127-support foot; 128-claw; 129-claw hole; 130-hook structure; 131-fixed support plate; 132-patch nut;

[0047] 20-mechanical pixel display unit; 200-cylinder; 210-flip plate;

[0048] 30-Mechanical pixel display system. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0052] In the description of the embodiments of the present application, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present application 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 application.

[0053] In the description of the embodiments of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0055] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0056] This embodiment provides a pluggable motor device 10, which can solve the problem in the prior art that the motor 105 cannot be removed from the PCB board.

[0057] See also Figure 1 , Figure 1 Schematic diagram of the motor assembly 100 and the PCB mainboard 110 in this embodiment.

[0058] The pluggable motor device 10 includes a motor assembly 100 and a PCB main board 110 .

[0059] The motor assembly 100 includes a motor body 101 , an adapter plate 102 , and a gold finger 103 . The gold finger 103 is disposed on the adapter plate 102 , and the motor body 101 and the gold finger 103 are electrically connected.

[0060] The PCB main board 110 is formed with a slot 111 , in which a contact piece 112 is arranged. The slot 111 is for the adapter board 102 to be inserted. The gold finger 103 is electrically connected to the contact piece 112 , so that the PCB main board 110 is electrically connected to the motor body 101 .

[0061] When the adapter plate 102 of the motor assembly 100 is inserted into the slot 111 on the PCB main board 110, the gold finger 103 on the adapter plate 102 is electrically connected to the contact piece 112, so that the PCB main board 110 is electrically connected to the motor body 101, and the upper computer program on the PCB main board 110 can conveniently control the drive of the motor body 101. If the motor assembly 100 fails and needs maintenance, the motor assembly 100 can be directly pulled out from the PCB main board 110 for maintenance. At the same time, if the motor assembly 100 needs to be replaced, or the motor assembly 100 is transferred from one PCB main board 110 to another PCB main board 110, the motor assembly 100 can be disassembled and assembled only by plugging and unplugging. In other words, a plurality of slots 111 are provided on a PCB main board 110, and the motor assembly 100 can be installed in any slot 111 on the PCB main board 110 by plugging and unplugging, so as to realize the installation of the motor assembly 100 at any position. Therefore, the pluggable motor device 10 disclosed in the present application can be applied to a large number of matrix motor control systems that require quick and easy replacement.

[0062] like Figure 1 The adapter board 102 is formed with a motor drive circuit (not shown in the figure) and a lead socket 104, and the motor drive circuit is connected to the lead socket 104 and the gold finger 103. The motor body 101 includes a motor 105 and a motor lead 106, and the motor lead 106 is connected to the motor 105, and the motor lead 106 is plugged into the lead socket 104.

[0063] In the above implementation process, the control circuit on the PCB main board 110 is connected to the motor lead 106 through the gold finger 103 and the drive circuit, and can effectively control the motor body 101. At the same time, if the motor drive circuit, the motor body 101 or the gold finger 103 fails, the motor body 101 or the adapter board 102 can be removed and maintained separately.

[0064] It should be noted that in Figure 1 In the embodiment, the motor 105 has no structural support. Figure 1 The motor assembly 100 and the PCB main board 110 are used to introduce the connection relationship between the motor assembly 100 and the PCB main board 110. In practical applications, the motor 105 can be supported to ensure the normal operation of the motor 105. By way of example, the following provides a technical solution capable of supporting the motor 105:

[0065] See also Figure 2-Figure 4 , Figure 2 is a schematic diagram of a pluggable motor device 10 in this embodiment, Figure 3 for Figure 2 Cross-section view from medium AA perspective, Figure 4 It is a three-dimensional exploded view of the pluggable motor device 10 in this embodiment.

[0066] The pluggable motor device 10 includes a mounting assembly 120, which is formed with an opening (not shown in the figure). The motor assembly 100 is disposed in the mounting assembly 120, and the gold finger 103 is exposed in the opening. The mounting assembly 120 is detachably connected to the PCB main board 110.

[0067] In the above implementation process, the mounting assembly 120 encapsulates the motor assembly 100, effectively protecting the motor assembly 100 and effectively supporting the motor 105. The gold finger 103 is exposed in the opening and can be easily inserted into the slot 111 on the PCB main board 110.

[0068] In the present disclosure, the mounting assembly 120 includes a base 121 and a cover 122 , and an opening is formed at the bottom end of the base 121 .

[0069] Please combine Figure 5 , Figure 5 The schematic diagram shows that the motor 105 is supported on the motor mounting frame 123. The top of the base 121 is formed with the motor mounting frame 123 and the limiting groove 124, the motor 105 is supported on the motor mounting frame 123, and the adapter plate 102 is arranged in the limiting groove 124. The cover 122 is connected to the top of the base 121, and the motor body 101 is located in the cover 122.

[0070] The motor 105 can be effectively supported on the motor mounting frame 123. The motor mounting frame 123 supports the motor 105 and can reduce the vibration amplitude of the motor 105 during operation. The limiting groove 124 can effectively position the adapter plate 102 and improve the installation efficiency of the adapter plate 102. It should be noted that a groove is formed at the bottom end of the base 121 so that when the base 121 is connected to the PCB main board 110, the slot 111 can be accommodated, so that the base 121 fits the surface of the PCB main board 110. It should be noted that the base 121 and / or the cover 122 are formed with a hole for the output shaft of the power supply machine 105 to extend out. It should be noted that the base 121 and / or the cover 122 refer to three situations. In the first situation, the base 121 is formed with a hole for the output shaft to extend out; in the second situation, the cover 122 is formed with a hole for the output shaft to extend out; in the third situation, the base 121 is formed with a semicircular hole, and the cover 122 is formed with a semicircular hole, and the semicircular holes on the base 121 and the cover 122 together constitute a circular hole for the output shaft to extend out.

[0071] It should be noted that the motor mounting frame 123 includes two support plates 125 , which are spaced apart from each other, and arc-shaped grooves are formed on the end surfaces of the support plates 125 . The limiting groove 124 is located between the two support plates 125 .

[0072] In the above implementation process, if Figure 5, the surface of the motor 105 can fit on the surface of the arc-shaped groove, and the two support plates 125 support the motor 105 together. The limit groove 124 is located between the two support plates 125, and the size of the limit groove 124 corresponds to the size of the adapter plate 102, ensuring that the adapter plate 102 can be embedded in the limit groove 124 and does not shake relative to the limit groove 124. The opening is located below the base 121 and is connected to the limit groove 124. The gold finger 103 is exposed to the opening. When the base 121 is connected to the PCB main board 110, the gold finger 103 can be inserted into the slot 111 and contact the contact 112. At the same time, the motor lead 106 can be arranged between the two support plates 125 to prevent the motor lead 106 from interfering with the assembly of the motor 105, the corner plate and the base 121.

[0073] In the present disclosure, the cover 122 is formed with a receiving cavity 126 and a support leg 127. The cover 122 is connected to the base 121 by screws passing through the support leg 127. The motor mounting frame 123 and the limiting groove 124 are located in the receiving cavity 126. When the cover 122 is connected to the base 121, the cover 122 can accommodate the motor mounting frame 123, the motor 105 and the adapter plate 102, that is, the motor mounting frame 123, the motor 105, and the adapter plate 102 are within the positive projection range of the receiving cavity 126.

[0074] The base 121 is provided with two claws 128, and the two claws 128 are respectively disposed on two opposite sides of the base 121. The PCB main board 110 is formed with a clamping hole 129 corresponding to the claw 128, and the claw 128 is clamped in the clamping hole 129.

[0075] The claw 128 includes two parts, one of which is a vertical rod-shaped structure connected to the side of the base 121. The other part is a hook-shaped structure 130 connected to the end of the rod-shaped structure. When the claw 128 passes through the clamping hole 129, the hook-shaped structure 130 can abut against the bottom surface of the PCB main board 110 to achieve the snap connection between the base 121 and the PCB main board 110; at the same time, if it is necessary to remove the base 121 from the PCB main board 110, force can be applied to the hook-shaped structure 130 to make the hook-shaped structure 130 detach from the bottom surface of the PCB main board 110 and make it slip out of the clamping hole 129.

[0076] During the above implementation process, the base 121 is engaged with the PCB main board 110 through two claws 128, ensuring that the motor assembly 100 is stably located on the PCB main board 110 and preventing the motor assembly 100 from being separated from the PCB main board 110; at the same time, since the claws 128 and the holes 129 are used for connection, the maintenance personnel can easily remove the base 121 from the PCB main board 110.

[0077] In order to ensure the connection stability between the base 121 (as well as the motor assembly 100 and the cover 122 on the base 121) and the PCB main board 110 and prevent the base 121 from falling off the PCB main board 110, the base 121 is formed with a fixed support plate 131, and the fixed support plate 131 is formed with a first screw hole. The PCB main board 110 is formed with a second screw hole. The pluggable motor device 10 also includes a screw and a patch nut 132, and the screw passes through the first screw hole and the second screw hole to be connected to the patch nut 132. The base 121 and the PCB main board 110 are fixed with screws, which can effectively improve the connection stability between the base 121 and the PCB main board 110; at the same time, the removal of the screws is simple and does not affect the efficiency of removing the base 121 from the PCB main board 110.

[0078] It should be noted that the present disclosure also provides a mechanical pixel display unit 20. Figure 6 , Figure 6 is a schematic diagram of a mechanical pixel display unit 20 in this embodiment.

[0079] The mechanical pixel display unit 20 includes a barrel 200, a flap 210, and the pluggable motor device 10 described above. The barrel 200 is disposed on a PCB mainboard 110 (in Figure 6 On the PCB main board 110 (not shown), the flap 210 is located in the barrel 200 and is connected to the output shaft of the motor 105 in the pluggable motor device 10. The output shaft of the motor 105 in the pluggable motor device 10 drives the flap 210 to rotate in the barrel 200.

[0080] By driving the pluggable motor device 10, the flip plate 210 in the mechanical pixel display unit 20 can realize imaging display through the mechanical optical pixel principle. The mechanical imaging principle is: 1. The pluggable motor device 10 controls the deflection angle of the flip plate 210 to accurately control the brightness of the reflected light of the flip plate 210, thereby realizing the precise control of the intermediate gray level from black to white of the mechanical pixel; 2. The pluggable motor device 10 controls the deflection angle of the flip plate 210 to control the visual duty cycle of the surface of the flip plate 210, thereby realizing the size display effect of the mechanical pixel from 0% to 100%.

[0081] It should be noted that the present disclosure also provides a mechanical pixel display system 30. Figure 7 , Figure 7 FIG. 4 is a schematic diagram of a mechanical pixel display system 30 in this embodiment.

[0082] The mechanical pixel display system 30 includes a barrel 200 , a flip plate 210 , and the pluggable motor device 10 described above.

[0083] There are multiple cylinders 200, flaps 210 and motor assemblies 100, and the numbers of the three are the same. Multiple cylinders 200 are arranged on the PCB main board 110, and the output shaft of the motor 105 in the pluggable motor device 10 drives the corresponding flap 210 to rotate in the cylinder 200.

[0084] Each motor assembly 100 drives the corresponding flap 210 in the barrel 200 to rotate, and uses the mechanical optical pixel principle to realize imaging display. One motor assembly 100, the corresponding barrel 200 and the corresponding flap 210 are arranged on the PCB motherboard 110, which can be regarded as one mechanical pixel display unit 20, and several motor assemblies 100, the corresponding barrel 200 and the corresponding flap 210 are arranged on the PCB motherboard 110, which can be regarded as several mechanical pixel display units 20.

[0085] In a plurality of mechanical pixel display units 20 arranged in a set order, the PCB mainboard 110 can control the motors 105 in all motor assemblies 100, allowing them to drive the flip plates 210 to rotate according to the set instructions to achieve imaging display. The mutual cooperation of the plurality of flip plates 210 can enable the mechanical pixel display system 30 to display vivid and dynamic visual display effects to the outside world.

[0086] At the same time, since the motor assembly 100 is pluggably connected to the PCB main board 110, the motor assembly 100 can be selectively installed at any position of the PCB main board 110 where the slot 111 is formed according to needs.

[0087] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pluggable motor device, characterized in that: include: A motor assembly, comprising a motor body, an adapter plate and a gold finger, wherein the gold finger is arranged on the adapter plate, the motor body is electrically connected to the gold finger, the adapter plate is formed with a motor drive circuit and a lead socket, the motor drive circuit is connected to the lead socket and the gold finger, the motor body comprises a motor and a motor lead, the motor lead is connected to the motor, and the motor lead is plugged into the lead socket; A PCB main board is formed with a slot, a contact piece is arranged in the slot, the slot is for the adapter board to be inserted, the gold finger is electrically connected to the contact piece, so that the PCB main board is electrically connected to the motor body; and The mounting assembly is provided with an opening; the motor assembly is arranged in the mounting assembly, and the gold finger is exposed in the opening; the mounting assembly is detachably connected to the PCB main board, the mounting assembly includes a base and a cover, and the opening is formed at the bottom end of the base; a motor mounting frame and a limiting groove are formed at the top end of the base, and the motor mounting frame includes two support plates, the two support plates are arranged at intervals, and the end faces of the support plates are formed with arc-shaped grooves; the limiting groove is located between the two support plates, the motor body is supported on the motor mounting frame, and the adapter plate is arranged in the limiting groove; the cover is connected to the top end of the base, the motor body is located in the cover, and the base is formed with a groove, so that when the base is connected to the PCB main board, the slot can be accommodated, so that the base fits the surface of the PCB main board.

2. The pluggable motor device according to claim 1, characterized in that: The cover is formed with a receiving cavity and a supporting foot, the cover is connected to the base by screws passing through the supporting foot, and the motor mounting frame and the limiting groove are located in the receiving cavity.

3. The pluggable motor device according to claim 1, characterized in that: The base is provided with two clamping claws, which are respectively arranged on two opposite sides of the base; the PCB main board is formed with clamping holes corresponding to the clamping claws, and the clamping claws are clamped in the clamping holes.

4. The pluggable motor device according to claim 3, characterized in that: The base is formed with a fixed support plate, and the fixed support plate is formed with a first screw hole; the PCB main board is formed with a second screw hole; the pluggable motor device also includes a screw and a patch nut, and the screw passes through the first screw hole and the second screw hole and is connected to the patch nut.

5. A mechanical pixel display unit, characterized in that: The mechanical pixel display unit includes a cylinder, a flip plate and a pluggable motor device as described in any one of claims 1 to 4, wherein the cylinder is arranged on the PCB main board, the flip plate is located in the cylinder and connected to the output shaft of the pluggable motor device, and the output shaft of the pluggable motor device drives the flip plate to rotate in the cylinder.

6. A mechanical pixel display system, characterized in that: The mechanical pixel display system includes a cylinder, a flip plate and a pluggable motor device as described in any one of claims 1-4; the number of the cylinder, the flip plate and the motor assembly is multiple, and the number of the three is the same, and the multiple cylinders are arranged on the PCB main board, and the output shaft of the pluggable motor device drives the corresponding flip plate to rotate in the cylinder.

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