Access control power supply controller

Abstract

The utility model provides an access control power supply controller which comprises a bottom plate, a detachable shell is installed on one side face of the bottom plate, a PCB is installed in a space formed by the shell and the bottom plate, one side of the upper surface of the shell is sunken to form a stepped groove, a plurality of wiring terminals are evenly installed in a right-angle area in the stepped groove, and the wiring terminals are connected with the PCB. The wiring terminal is electrically connected with the PCB, an insulating frame plate is arranged on the upper side of the wiring terminal, the frame plate is fixedly connected with the shell through a connecting piece, a plurality of screw holes are uniformly formed in the upper surface of the frame plate, and clamping screws are in threaded connection with the interiors of the screw holes. The wiring terminal fixing device has the following beneficial effects that the clamping screw for pressing the power line is not in threaded connection with the wiring terminal, so that the wiring terminal is prevented from being damaged when the clamping screw is tightened.

Description

Technical Field

[0001] The utility model is a door access control power supply controller, belonging to the technical field of door access control. Background Art

[0002] The access control power controller is one of the main components in the access control system. There are multiple wiring terminals installed on the access control power controller. During the wiring process, one end of the power cord is inserted into the wiring terminal, and then the power cord is tightened with a clamping screw to complete the connection between the power cord and the wiring terminal. This method is to process screw holes on the wiring terminals. When the torque is too large when tightening the clamping screws with tools such as electric screwdrivers, the wiring terminals will be damaged, affecting the smooth wiring. Therefore, it is necessary to design an access control power controller that makes the clamping screws that tighten the power cord not connected to the wiring terminal threads. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a door access power controller to solve the problems raised in the above-mentioned background technology. The utility model makes the clamping screw for clamping the power cord not connected to the threaded connection of the terminal, so as to prevent the terminal from being damaged when tightening the clamping screw.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a door access control power supply controller, including a base plate, a detachable shell is installed on one side of the base plate, a PCB board is installed in the space formed by the shell and the base plate, one side of the upper surface of the shell is recessed to form a step groove, and a plurality of wiring terminals are evenly installed in the right-angle area of ​​the step groove, the wiring terminals are electrically connected to the PCB board, an insulating frame plate is provided on the upper side of the wiring terminals, the frame plate is connected and fixed to the shell through a connecting piece, a plurality of screw holes are evenly opened on the upper surface of the frame plate, and clamping screws are threadedly connected to the screw holes, and the lower end of the clamping screw extends into the wiring terminal for clamping the power cord inserted in the wiring terminal.

[0005] Furthermore, the connecting piece includes a connecting screw, and two connecting ears are symmetrically installed on the upper surface of the frame plate. A small hole is opened on one side of the connecting ear, and a connecting screw threadedly connected to the shell is inserted into the small hole.

[0006] Furthermore, a thickening block that fits with the connecting ear is provided on the side of the connecting ear facing the shell, and the thickening block is connected and fixed to the shell. A threaded hole aligned with the small hole is opened on the side of the thickening block facing the connecting ear, and one end of the connecting screw is threadedly connected in the threaded hole.

[0007] Furthermore, two ears are symmetrically connected and fixed at the upper position of the vertical surface in the stepped groove, a protective cover for covering the wiring terminal is provided between the two ears, axial holes are provided on both sides of the protective cover facing the ears, an axial column is inserted in the axial hole, the axial column is connected and fixed to the ears, and a plurality of wire threading grooves are evenly provided at the lower edge of a side surface of the protective cover adjacent to the axial hole.

[0008] Furthermore, a positioning ear is connected and fixed to one end of the bottom plate, and two fixing holes are provided on a side surface of the positioning ear.

[0009] Furthermore, a side of the upper surface of the shell away from the stepped groove is recessed downward to form a label slot for storing labels, and a plurality of heat dissipation holes are provided on two parallel side surfaces of the shell.

[0010] Beneficial effects of the utility model:

[0011] 1. The connecting screws are passed through the small holes on the connecting ears and then screwed into the threaded holes on the thickening blocks to complete the assembly of the frame plate and the shell. At the same time, the thickness of the shell where the connecting screws are installed is partially increased without increasing the thickness of the shell as a whole, thereby reducing the production cost of the shell.

[0012] 2. After inserting one end of the power cord into the terminal block, screw the clamping screw into the screw hole on the clamping plate so that the lower end of the clamping screw extends into the terminal block and presses the power cord to complete the connection between the terminal block and the power cord. Compared with the direct threaded connection between the clamping screw and the terminal block, there will be no damage to the terminal block due to excessive torque during the wiring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a door access power controller of the utility model;

[0015] Figure 2 This is a schematic diagram of the assembly of a frame board, wiring terminals, housing and bottom plate in a door access control power supply controller of the utility model;

[0016] Figure 3 Based Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the assembly of a thickened block, a wiring terminal and a housing in a door access control power controller of the utility model;

[0018] Figure 5 This is a schematic diagram of the assembly of the connecting ears and the frame plate in a door access control power controller of the utility model;

[0019] Figure 6 This is a top view of a PCB board in a door access control power controller of the utility model;

[0020] Figure 7 This is an electrical schematic diagram of an embodiment of a door access power controller of the utility model;

[0021] In the figure: 1-base plate, 2-shell, 3-heat dissipation hole, 4-support ear, 5-wire groove, 6-protective cover, 7-fixing hole, 8-positioning ear, 9-label slot, 10-terminal, 11-rack, 12-clamping screw, 13-connecting screw, 14-connecting ear, 15-axis column, 16-thickening block, 17-threaded hole, 18-screw hole, 19-small hole, 20-PCB board. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] A plurality of wiring terminals 10 are installed on the access control power supply controller. During the wiring process, one end of the power line is inserted into the wiring terminal 10, and then the power line is compressed by the clamping screw 12 to complete the connection between the power line and the wiring terminal 10. In this method, a screw hole 18 is processed on the wiring terminal 10. When the torque is too large when tightening the clamping screw 12 with an electric screwdriver or other tools, the wiring terminal 10 may be damaged, affecting the smooth wiring.

[0024] To solve the above problems, please refer to Figure 1-Figure 6 The utility model provides a technical solution: a door access control power controller, including a base plate 1, a detachable shell 2 is installed on one side of the base plate 1, a PCB board 20 is installed in the space formed by the shell 2 and the base plate 1, the side of the upper surface of the shell 2 away from the step groove is recessed downward to form a label slot 9 for storing labels, a plurality of heat dissipation holes 3 are provided on two parallel sides of the shell 2, and the design of the heat dissipation holes 3 is convenient for heat dissipation, a positioning ear 8 is connected and fixed at one end of the base plate 1, and two fixing holes 7 are provided on one side of the positioning ear 8, so that the screws pass through the fixing holes 7 and are installed at the desired position, thereby completing the restriction of the position of the base plate 1.

[0025] One side of the upper surface of the shell 2 is recessed to form a stepped groove, and a plurality of wiring terminals 10 are evenly installed in the right-angled area of ​​the stepped groove. The wiring terminals 10 are electrically connected to the PCB board 20. An insulating frame plate 11 is provided on the upper side of the wiring terminal 10. Two connecting ears 14 are symmetrically installed on the upper surface of the frame plate 11. A small hole 19 is provided on one side of the connecting ear 14, and a connecting screw 13 is inserted in the small hole 19. A thickening block 16 that fits the connecting ear 14 is provided on the side of the connecting ear 14 facing the shell 2. The thickening block 16 is connected and fixed to the shell 2. A threaded hole 17 that is aligned with the small hole 19 is provided on the side of the thickening block 16 facing the connecting ear 14. One end of the connecting screw 13 is threadedly connected in the threaded hole 17, so that the connecting screw 13 passes through the small hole 19 on the connecting ear 14 and is screwed into the threaded hole 17 on the thickening block 16, completing the assembly of the frame plate 11 and the shell 2, and at the same time, the thickness of the part of the shell 2 where the connecting screw 13 is installed is partially increased, without increasing the thickness of the shell 2 as a whole, thereby reducing the production cost of the shell 2.

[0026] A plurality of screw holes 18 are evenly arranged on the upper surface of the frame plate 11, and a clamping screw 12 is threadedly connected to the inner thread of the screw hole 18. The lower end of the clamping screw 12 extends into the wiring terminal 10 to clamp the power cord inserted in the wiring terminal 10. After one end of the power cord is inserted into the wiring terminal 10, the clamping screw 12 is screwed into the screw hole 18 on the clamping plate, so that the lower end of the clamping screw 12 extends into the wiring terminal 10 and presses the power cord to complete the connection between the wiring terminal 10 and the power cord. Compared with the method of directly threading the clamping screw 12 and the wiring terminal 10, the wiring terminal 10 will not be damaged due to excessive torque during the wiring process.

[0027] Two ears 4 are symmetrically connected and fixed at the upper position of the vertical surface in the stepped groove, and a protective cover 6 for covering the terminal 10 is provided between the two ears 4. Axle holes are provided on the two sides of the protective cover 6 facing the ears 4, and a shaft column 15 is inserted in the shaft hole. The shaft column 15 is connected and fixed to the ears 4. A plurality of threading grooves 5 are evenly provided at the lower edge of the side of the protective cover 6 adjacent to the shaft hole, and the shaft column 15 is inserted in the shaft hole to complete the rotational connection between the protective cover 6 and the ear 4. By lifting the protective cover 6, it is convenient to hide the terminal 10 or expose the terminal 10.

[0028] See also Figure 6 and Figure 7, D1 is a protection diode to prevent the input +12V power supply from being connected in reverse, T2 is used to convert the +12V power supply into the +5V working power supply required by the chip, C10 is an output low-frequency filter capacitor, and C11 is an output high-frequency filter capacitor; U4 is a wireless data receiving chip, L3, C4, L1, and C7 form an antenna wireless signal receiving network, and the four pins of U4 output the received wireless data to be sent to the U6 main control chip for processing. U6 uses the wireless data to open the door or ring the doorbell; the door opening action drives the Q4 transistor through the R10 current limiting resistor to realize the switch relay, and the output of the relay is connected to the magnetic lock to control the switch of the magnetic lock and realize the door opening and closing action; the ringing sound signal controls the Q5 and Q6 transistors through the R8 current limiting resistor to drive the speaker to complete the doorbell work.

[0029] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A door access control power supply controller, comprising a base plate (1), characterized in that: A detachable shell (2) is installed on one side of the bottom plate (1); a PCB board (20) is installed in a space formed by the shell (2) and the bottom plate (1); one side of the upper surface of the shell (2) is recessed to form a stepped groove; a plurality of wiring terminals (10) are evenly installed in a right-angled area in the stepped groove; the wiring terminals (10) are electrically connected to the PCB board (20); an insulating frame plate (11) is provided on the upper side of the wiring terminals (10); the frame plate (11) is connected and fixed to the shell (2) through a connecting piece; a plurality of screw holes (18) are evenly opened on the upper surface of the frame plate (11); a clamping screw (12) is threadedly connected to the inner thread of the screw hole (18); the lower end of the clamping screw (12) extends into the wiring terminal (10) and is used to compress a power line inserted in the wiring terminal (10).

2. The access control power supply controller according to claim 1, characterized in that: The connecting piece comprises a connecting screw (13), and two connecting ears (14) are symmetrically mounted on the upper surface of the frame plate (11). A small hole (19) is opened on one side of the connecting ear (14), and a connecting screw (13) threadedly connected to the housing (2) is inserted into the small hole (19).

3. The access control power controller according to claim 2, characterized in that: A thickening block (16) that fits the connecting ear (14) is provided on the side of the connecting ear (14) facing the shell (2); the thickening block (16) is connected and fixed to the shell (2); a threaded hole (17) that is aligned with the small hole (19) is provided on the side of the thickening block (16) facing the connecting ear (14); one end of the connecting screw (13) is threadedly connected in the threaded hole (17).

4. The access control power controller according to claim 1, characterized in that: Two ears (4) are symmetrically connected and fixed at the upper position of the vertical surface in the stepped groove, and a protective cover (6) for covering the wiring terminal (10) is provided between the two ears (4). The protective cover (6) is provided with axial holes on both sides facing the ears (4), and an axial column (15) is inserted in the axial hole. The axial column (15) is connected and fixed to the ears (4), and a plurality of threading grooves (5) are evenly provided at the lower edge of a side surface of the protective cover (6) adjacent to the axial hole.

5. The access control power controller according to claim 1, characterized in that: A positioning ear (8) is connected and fixed to one end of the bottom plate (1), and two fixing holes (7) are provided on one side of the positioning ear (8).

6. The access control power controller according to claim 1, characterized in that: The upper surface of the shell (2) is recessed downward on one side away from the stepped groove to form a label groove (9) for storing labels, and two parallel side surfaces of the shell (2) are provided with a plurality of heat dissipation holes (3).

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