Temperature controller convenient to plug

Abstract

The utility model discloses a temperature controller convenient for plugging. The temperature controller comprises a housing and a control unit. Sliding seats are arranged at the front ends of the upper inner side wall and the lower inner side wall of the shell, positioning blocks are slidably connected into the sliding seats, avoiding holes corresponding to the positioning blocks are formed in the upper outer surface and the lower outer surface of the shell, a display screen is arranged at a rectangular hole in the front side wall of the shell, a single chip microcomputer is arranged at the lower end of the right side wall of the shell, and a relay is arranged at the upper end of the right side wall of the shell; the input ends of the relay and the display screen are electrically connected with the output end of the single-chip microcomputer. The input end of the single-chip microcomputer is electrically connected with an external power supply. The control unit is arranged in the shell, the positioning blocks are all in sliding connection with the control unit, the positioning blocks are all obliquely arranged in the direction away from the vertical center of the shell from back to front, according to the temperature controller convenient to insert, the temperature controller can be directly inserted into the rectangular hole in the mounting position, and then the positioning blocks stretch out to be fixed; the fixing effect is good; and meanwhile, the convenience during the installation of the temperature controller is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature controllers, in particular to a temperature controller which is easy to plug in. Background Art

[0002] With the continuous advancement of science and technology and the rapid development of the smart home market, thermostats will play an increasingly important role in the future. A thermostat refers to a series of automatic control components that undergo physical deformation inside the switch according to the temperature changes in the working environment, thereby producing certain special effects and generating on or off actions. It is also called a temperature control switch, a temperature protector, a temperature controller, or simply a thermostat. Alternatively, the temperature is transmitted to the temperature controller through a temperature protector, and the temperature controller issues a switch command to control the operation of the equipment to achieve the desired temperature and energy-saving effect. Existing thermostats are generally installed by plugging into the rectangular hole of the door of the distribution cabinet, and are connected to the cabinet door through an elastic clip set on the outer shell. In the process of plugging, the elastic clip needs to undergo elastic deformation, and the plugging has a large resistance that affects the convenience of thermostat installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a thermostat that is easy to plug in. The thermostat can be directly plugged into the rectangular hole at the installation location, and then the positioning block is extended to fix it. The fixing effect is good and the convenience of installing the thermostat is greatly improved, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermostat that is easy to plug in, comprising a housing and a control unit;

[0005] Shell: The front ends of the upper and lower inner walls are provided with slide seats, the interiors of the slide seats are slidably connected with positioning blocks, the upper and lower outer surfaces of the shell are provided with avoidance holes corresponding to the positioning blocks, a display screen is provided at the rectangular hole of the front wall of the shell, a single-chip microcomputer is provided at the lower end of the right side wall of the shell, a relay is provided at the upper end of the right side wall of the shell, the input ends of the relay and the display screen are electrically connected to the output end of the single-chip microcomputer, and the input end of the single-chip microcomputer is electrically connected to an external power supply;

[0006] Control unit: It is arranged inside the shell, and the positioning blocks are slidably connected with the control unit. During the installation process, the fixing structure can be completely retracted into the shell, and then the thermostat can be directly plugged into the rectangular hole at the installation location, and then the hand wheel is rotated to control the positioning block to extend for fixing. The fixing effect is good and the convenience of installing the thermostat is greatly improved.

[0007] Furthermore, the positioning blocks are all tilted from back to front away from the vertical center of the shell, the plane at the front end of the positioning blocks is parallel to the rear side of the flange at the front end of the shell, and the positioning blocks can extend obliquely to facilitate the fixation of the shell.

[0008] Furthermore, the control unit includes a synchronization shaft and a push bar, the synchronization shaft is slidably connected between the two positioning blocks, and a push bar is provided in the middle of the outer arc surface of the synchronization shaft to facilitate the synchronous control of the two positioning blocks.

[0009] Furthermore, the control unit also includes a screw and a retaining ring. The screw is threadedly connected to the threaded hole on the rear side of the push bar. The rear end of the screw extends out of the rear side of the outer shell. Two retaining rings are provided at the rear end of the outer arc surface of the screw. The two retaining rings are respectively located on the rear side of the rear side of the outer shell and the front side of the rear side wall, so as to facilitate the control of the movement of the synchronization shaft.

[0010] Furthermore, the control unit also includes a handwheel, which is arranged at the rear end of the screw to facilitate the control of the rotation of the screw.

[0011] Furthermore, the rear end of the shell is provided with evenly distributed connecting columns, which are movably connected to the slots at the front end of the protective shell. The wiring seat at the rear end of the shell is located inside the protective shell, which can protect the wiring seat at the rear end of the shell.

[0012] Furthermore, the front end of the protective shell is provided with evenly distributed spring sheets, and the spring sheets are all arranged in cooperation with corresponding longitudinal connecting columns to facilitate the positioning of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the thermostat which is easy to plug in has the following advantages:

[0014] During installation, the shell can be directly inserted into the rectangular hole of the electrical cabinet door. The positioning block is located inside the slide seat and will not hinder the insertion of the shell, which facilitates the plug-in of the thermostat. The rear side wall of the front flange of the shell contacts the front side of the cabinet door, and then the hand wheel is rotated, the hand wheel drives the screw to rotate, and the retaining ring limits the forward and backward movement of the screw, and then the screw will push the push bar to drive the synchronous shaft to move forward, and the synchronous shaft drives the positioning block to slide along the slide seat. While the positioning block is tilted and slid, its rear end slides relative to the synchronous shaft, and the positioning block will extend out of the shell and abut against the rear side of the electrical cabinet door, and the electrical cabinet door is clamped to fix the shell. During the installation process, the fixing structure can be completely retracted into the interior of the shell, and then the thermostat can be directly plugged into the rectangular hole at the installation location, and then the hand wheel is rotated to control the positioning block to extend for fixation. The fixing effect is good and the convenience of installing the thermostat is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the control unit of the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the rear side of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0019] In the figure: 1 housing, 2 single chip microcomputer, 3 relay, 4 display screen, 5 slide seat, 6 positioning block, 7 control unit, 71 synchronization shaft, 72 push bar, 73 screw, 74 retaining ring, 75 hand wheel, 8 connecting column, 9 protective shell, 10 spring sheet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 ,This embodiment provides a technical solution: a thermostat that is easy to plug in, including a housing 1 and a control unit 7;

[0022] Shell 1: The front ends of the upper and lower inner walls are provided with a slide seat 5, and the interior of the slide seat 5 is slidably connected with a positioning block 6, so that the shell 1 can be directly inserted into the rectangular hole of the door of the electrical cabinet. The positioning block 6 is located inside the slide seat 5 and will not hinder the insertion of the shell 1, thereby facilitating the insertion of the thermostat. The rear side wall of the front flange of the shell 1 contacts the front side of the cabinet door, and the upper and lower outer surfaces of the shell 1 are provided with avoidance holes corresponding to the positioning block 6. A display screen 4 is provided at the rectangular hole of the front side wall of the shell 1, and a single-chip microcomputer 2 is provided at the lower end of the right side wall of the shell 1. The right side wall of the shell 1 A relay 3 is provided at the upper end, and the input ends of the relay 3 and the display screen 4 are electrically connected to the output end of the single-chip computer 2. The input end of the single-chip computer 2 is electrically connected to the external power supply. The external power supply line is connected to the input end of the single-chip computer 2 through the terminal block, the temperature sensor signal line is connected to the input end of the single-chip computer 2 through the terminal block, and the electric heating tube wire is connected to the output end of the relay 3 through the terminal block. When working, the temperature sensor converts the external temperature information into an electrical signal and transmits it to the single-chip computer 2. The single-chip computer 2 sends the converted temperature value to the display screen 4 through the internal calculation of the program. The display is displayed, and at the same time, the single-chip microcomputer 2 controls the relay 3 to realize the control of the on-off of the electric heating tube circuit, which is convenient for the control of the temperature of the external device. The positioning blocks 6 are all tilted from back to front in the direction away from the vertical center of the shell 1. The plane at the front end of the positioning block 6 is parallel to the rear side of the flange at the front end of the shell 1. The positioning block 6 will extend out of the shell 1 and abut against the rear side of the electrical cabinet door, and the electrical cabinet door will be clamped to fix the shell 1. The rear end of the shell 1 is provided with evenly distributed connecting columns 8, and the connecting columns 8 are movably connected with the card slots at the front end of the protective shell 9. The shell The wiring seat at the rear end of the housing 1 is located inside the protective shell 9. The protective shell 9 is moved obliquely upward to separate from the connecting column 8, and the wiring seat at the rear end of the housing 1 is exposed to facilitate the connection of the external power line, the temperature sensor signal line and the electric heating tube wire. The front end of the protective shell 9 is provided with uniformly distributed spring sheets 10. The spring sheets 10 are all arranged in cooperation with the longitudinally corresponding connecting columns 8. The opening formed by the spring sheets 10 and the card slot is smaller than the diameter of the connecting column 8. During the carding process of the protective shell 9, the spring sheets 10 will undergo elastic deformation, and the spring sheets 10 facilitate the positioning of the connecting column 8 and the protective shell 9.

[0023] The control unit 7 is arranged inside the shell 1, and the positioning blocks 6 are slidably connected with the control unit 7. The control unit 7 includes a synchronous shaft 71 and a push strip 72. The synchronous shaft 71 is slidably connected between the two positioning blocks 6. A push strip 72 is provided in the middle of the outer arc surface of the synchronous shaft 71. The control unit 7 also includes a screw 73 and a retaining ring 74. The screw 73 is threadedly connected with the threaded hole on the rear side of the push strip 72. The rear end of the screw 73 extends out of the rear side of the shell 1. The rear end of the outer arc surface of the screw 73 is provided with two retaining rings 74. The two retaining rings 74 are respectively located on the rear side of the rear side of the shell 1 and the front side of the rear side wall. The control unit 7 also includes a handwheel 75. The handwheel 75 is arranged at the rear end of the screw 73. When the handwheel 75 is rotated, the handwheel 75 drives the screw 73 to rotate. The retaining ring 74 limits the forward and backward movement of the screw 73, and then the screw 73 will push the push strip 72 to drive the synchronous shaft 71 to move forward. The synchronous shaft 71 drives the positioning block 6 to slide along the slide seat 5. When the positioning block 6 tilts and slides, its rear end slides relative to the synchronous shaft 71.

[0024] The working principle of a thermostat that is easy to plug in provided by the utility model is as follows: during installation, the shell 1 can be directly inserted into the rectangular hole of the door of the electrical cabinet, the positioning block 6 is located inside the slide seat 5 and will not hinder the insertion of the shell 1, thereby facilitating the plugging of the thermostat, the rear side wall of the front end flange of the shell 1 contacts the front side of the cabinet door, and then the hand wheel 75 is rotated, the hand wheel 75 drives the screw rod 73 to rotate, the retaining ring 74 limits the forward and backward movement of the screw rod 73, and then the screw rod 73 will push the push bar 72 to drive the synchronous shaft 71 to move forward, and the synchronous shaft 71 drives the positioning block 6 to slide along the slide seat 5, and the positioning block 6 tilts and slides while its rear end slides relative to the synchronous shaft 71, the positioning block 6 will extend out of the shell 1 and abut against the rear side of the door of the electrical cabinet, and the electrical cabinet The cabinet door is clamped to fix the outer shell 1, and then the protective shell 9 is moved diagonally upward to separate it from the connecting column 8, and the terminal block at the rear end of the outer shell 1 is exposed to facilitate the connection of the external power line, the temperature sensor signal line and the electric heating tube wire. The external power line is connected to the input end of the single-chip microcomputer 2 through the terminal block, the temperature sensor signal line is connected to the input end of the single-chip microcomputer 2 through the terminal block, and the electric heating tube wire is connected to the output end of the relay 3 through the terminal block. When working, the temperature sensor converts the external temperature information into an electrical signal and transmits it to the single-chip microcomputer 2. The single-chip microcomputer 2 sends the converted temperature value to the display screen 4 for display through the internal calculation of the program. At the same time, the single-chip microcomputer 2 controls the relay 3 to realize the control of the on-off of the electric heating tube circuit, which is convenient for the control of the temperature of the external device.

[0025] It is worth noting that the single-chip microcomputer 2, display screen 4 and relay 3 disclosed in the above embodiments can be freely configured according to the actual application scenario. The single-chip microcomputer 2 can select a single-chip microcomputer of model AT89C52, the display screen 4 can select an LCD display screen, and the relay 3 can select a solid-state relay of model AQG22205. The single-chip microcomputer 2 controls the display screen 4 and the relay 3 using methods commonly used in the prior art.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A thermostat that is easy to plug in, characterized in that: It comprises a housing (1) and a control unit (7); A housing (1): a slide seat (5) is provided at the front end of the upper and lower inner side walls thereof, a positioning block (6) is slidably connected inside the slide seat (5), avoidance holes corresponding to the positioning block (6) are provided at the upper and lower outer surfaces of the housing (1), a display screen (4) is provided at the rectangular hole of the front side wall of the housing (1), a single chip computer (2) is provided at the lower end of the right side wall of the housing (1), a relay (3) is provided at the upper end of the right side wall of the housing (1), input ends of the relay (3) and the display screen (4) are electrically connected to the output end of the single chip computer (2), and the input end of the single chip computer (2) is electrically connected to an external power supply; Control unit (7): arranged inside the housing (1), and the positioning blocks (6) are slidably connected to the control unit (7).

2. The pluggable thermostat according to claim 1, characterized in that: The positioning blocks (6) are all arranged obliquely from the back to the front in a direction away from the vertical center of the housing (1), and the plane at the front end of the positioning blocks (6) is parallel to the rear side of the flange at the front end of the housing (1).

3. The pluggable thermostat according to claim 1, characterized in that: The control unit (7) comprises a synchronizing shaft (71) and a push bar (72); the synchronizing shaft (71) is slidably connected between two positioning blocks (6); and a push bar (72) is provided in the middle of the outer arc surface of the synchronizing shaft (71).

4. The pluggable thermostat according to claim 3, characterized in that: The control unit (7) further comprises a screw (73) and a retaining ring (74), wherein the screw (73) is threadedly connected to a threaded hole on a rear side surface of the push bar (72), the rear end of the screw (73) extending out of the rear side surface of the housing (1), and two retaining rings (74) are provided at the rear end of the outer arc surface of the screw (73), and the two retaining rings (74) are respectively located on the rear side of the rear side surface of the housing (1) and the front side of the rear side wall.

5. The pluggable thermostat according to claim 4, characterized in that: The control unit (7) further comprises a hand wheel (75), wherein the hand wheel (75) is arranged at the rear end of the screw rod (73).

6. The pluggable thermostat according to claim 1, characterized in that: The rear end of the housing (1) is provided with evenly distributed connecting columns (8), the connecting columns (8) are all movably engaged with the slots at the front end of the protective housing (9), and the wiring socket at the rear end of the housing (1) is located inside the protective housing (9).

7. The pluggable thermostat according to claim 6, characterized in that: The front end of the protective shell (9) is provided with evenly distributed spring sheets (10), and the spring sheets (10) are all arranged in cooperation with corresponding connecting columns (8) in the longitudinal direction.

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