Microwave existence type inductor

Abstract

The utility model relates to the technical field of inductors, and discloses a microwave existence type inductor which comprises a bottom cover, a middle cover is clamped and fixed on the inner side of the bottom cover, the upper end face of the middle cover is fixedly connected with the middle cover, the upper end face of the middle cover is clamped with a power supply part PCB, and the upper end face of the power supply part PCB is fixedly provided with a control part PCB. A 24G microwave detection module is fixedly installed on the upper end face of the control part PCB, an upper cover is detachably fixed to the middle cover, an auxiliary assembly used for assisting in fixing the control part PCB is arranged on the top of the upper cover, and clamping assemblies used for assisting in installing a microwave existence type inductor are arranged on the two opposite side walls of the top of the upper cover. According to the microwave inductor, the multiple PCBs can be further fixed through the arranged auxiliary assembly, the fixing stability of internal assemblies of the microwave inductor is improved, the microwave inductor can be rapidly installed on a to-be-installed part through the arranged clamping assembly, the middle cover and the upper cover are of a detachable structure, and internal devices can be conveniently maintained or replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, and in particular to a microwave presence sensor. Background Art

[0002] A microwave presence sensor, also known as a microwave sensor or microwave radar, is an instrument that utilizes the Doppler principle of electromagnetic waves. A microwave sensor uses a transmitting antenna to radiate microwaves into free space. When electromagnetic waves in free space encounter the surface of a moving object, they scatter, and some of the electromagnetic energy is reflected by the moving object and reaches a detector on the receiving antenna. The receiving antenna receives the reflected microwave signal and detects the electromagnetic parameters of the reflected wave signal processing circuit to perform microwave sensing. When an object moves, the wavelength of the reflected wave changes, triggering the sensor to respond accordingly.

[0003] Existing devices have some disadvantages during use. For example, most existing microwave presence sensors are fixed with screws, which usually require a specific screwdriver or other tools to operate, increasing the difficulty of disassembly. In addition, when the microwave sensor is subjected to external collision or impact, the internal components are prone to displacement or falling off. Such displacement or falling off may cause the sensor performance to deteriorate or even malfunction. Utility Model Content

[0004] The purpose of the utility model is to provide a microwave presence sensor to solve the problem that when the microwave sensor is subjected to external collision or impact, the internal components are easily deviated or detached, and such deviation or detachment may cause the sensor performance to deteriorate or even fail to work properly.

[0005] The utility model provides the following technical solution: a microwave presence sensor, comprising a bottom cover, a middle cover being clamped and fixed to the inner side of the bottom cover, a power supply part PCB being clamped to the upper end face of the middle cover, a control part PCB being fixedly mounted on the upper end face of the power supply part PCB, a 24G microwave detection module being fixedly mounted on the upper end face of the control part PCB, an upper cover being detachably fixed to the middle cover, an auxiliary component for assisting in fixing the control part PCB being provided on the top of the upper cover, and clamping components for assisting in mounting the microwave presence sensor being provided on opposite side walls of the top of the upper cover.

[0006] As a preferred embodiment of the above technical solution, the auxiliary component includes multiple potentiometers, and the multiple potentiometers are arrayed and fixed on the upper end surface of the control part PCB. Threaded holes are provided on the multiple potentiometers, and mounting holes are arrayed on the top side wall of the upper cover. Suitable knobs are inserted into the mounting holes and the inner sides of the threaded holes.

[0007] As a preferred embodiment of the above technical solution, the snap-on assembly includes side panels symmetrically arranged on the two side walls of the upper cover, and both sides of the two side panels are fixedly connected with fixing columns, and the fixing columns are sleeved with snap springs, one end of the snap springs is fixed to the side walls of the side panels, and the other end of the snap springs is used to snap onto the external component to be installed.

[0008] As a preferred embodiment of the above technical solution, snap-on protrusions are fixedly connected to the two opposite outer walls of the top of the middle cover, and snap-on interfaces are provided on the two opposite walls of the bottom of the upper cover. The upper cover is snap-on to the middle cover through the snap-on interfaces and the snap-on protrusions.

[0009] As a preferred embodiment of the above technical solution, a screw hole for fixing the wire pressing plate is provided on the lower end surface of the bottom cover.

[0010] As a preferred embodiment of the above technical solution, a wire outlet hole for passing the power line is opened on one side of the bottom cover, and the power supply part PCB is electrically connected to the external power supply through the wire outlet hole.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the present invention, the auxiliary components provided can further fix multiple PCB boards, thereby improving the fixing stability of the internal components of the microwave sensor, preventing the internal components from shifting or falling off when the microwave sensor is subjected to external collision or impact, and ensuring the normal operation of the device. The microwave presence sensor can be quickly installed on the part to be installed through the provided snap-on components, and the middle cover and the upper cover are detachable structures, which is convenient for maintenance or replacement of the internal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a microwave presence sensor from a first-person perspective;

[0014] Figure 2 A schematic diagram of the overall explosion structure of a microwave presence sensor;

[0015] Figure 3 A schematic diagram of the partial explosion structure of a microwave presence sensor;

[0016] Figure 4 Schematic diagram of the distribution structure of auxiliary components;

[0017] Figure 5 This is a schematic diagram of the overall structure of a microwave presence sensor from a second perspective.

[0018] In the figure: 1. Bottom cover; 101. Wire pressing plate; 11. Middle cover; 12. Power supply part PCB; 13. Control part PCB; 14. 24G microwave detection module; 15. Upper cover; 16. Snap-on bump; 17. Card interface; 18. Screw hole; 19. Wire outlet hole; 2. Auxiliary component; 21. Potentiometer; 22. Threaded hole; 23. Mounting hole; 24. Knob; 3. Snap-on component; 31. Side panel; 32. Fixing column; 33. Snap spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Example

[0021] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a microwave presence sensor, including a bottom cover 1, the purpose of the longer convex plate of the bottom cover 1 is to block the terminal post and prevent electric shock. The inner side of the bottom cover 1 is fixed with a middle cover 11, the upper end face of the middle cover 11 is fixed with a power supply part PCB 12, the upper end face of the power supply part PCB 12 is fixedly installed with a control part PCB 13, the upper end face of the control part PCB 13 is fixedly installed with a 24G microwave detection module 14, the middle cover 11 is detachably fixed with an upper cover 15, the top of the upper cover 15 is provided with an auxiliary component 2 for assisting in fixing the control part PCB 13, and the two opposite side walls of the top of the upper cover 15 are provided with a snap-on component 3 for assisting in installing the microwave presence sensor. During specific use, the power supply part PCB 12 is responsible for providing power support for the entire sensor. The sensor transmits microwaves and receives reflected signals through the 24G microwave detection module 14. The control part PCB13 processes and analyzes the received signals to determine whether there are objects in the surrounding environment. If there are objects, the sensor may trigger corresponding alarms or control actions. The internal devices are protected by the bottom cover 1, middle cover 11 and upper cover 15, and the auxiliary component 2 can further fix multiple PCB boards (because the power part PCB12, control part PCB13 and 24G microwave detection module 14 are fixed together as a whole, the whole can be fixed by fixing the control part PCB13), ensuring the stability of the device. The provided snap-on component 3 can quickly install the microwave presence sensor on the part to be installed (or the area to be installed).

[0022] As an implementation method in this embodiment, Figure 3 and Figure 4As shown, the auxiliary component 2 includes a plurality of potentiometers 21, which are used to set various parameters of the presence sensor. An array of multiple potentiometers 21 is fixed to the upper end surface of the control part PCB13. Threaded holes 22 are provided on the multiple potentiometers 21. An array of mounting holes 23 is provided on the top side wall of the upper cover 15. Adaptive knobs 24 are inserted into the inner sides of the mounting holes 23 and the threaded holes 22. During specific use, it is first necessary to assemble the control part PCB13, 24G microwave detection module 14 and other components according to the design requirements, and fix the array of potentiometers 21 to the upper end surface of the control part PCB13. Then, the upper cover 15 is placed on the middle cover 11 and its position is adjusted so that the mounting holes 23 on the upper cover 15 are aligned with the threaded holes 22 on the potentiometers 21. Finally, the adaptive knobs 24 are used to pass through the mounting holes 23 and screwed into the threaded holes 22 to tightly fix the upper cover 15 to the control part PCB13 through the potentiometers 21, thereby improving the fixing stability of the internal components of the sensor.

[0023] As an implementation method in this embodiment, Figure 1 As shown, the snap-fit assembly 3 includes side panels 31 symmetrically arranged on the two side walls of the upper cover 15, and both sides of the two side panels 31 are fixedly connected with fixing columns 32, and the fixing columns 32 are sleeved with snap springs 33, one end of the snap springs 33 is fixed to the side walls of the side panels 31, and the other end of the snap springs 33 is used to snap onto the external components to be installed. During specific use, the sensor needs to be placed in a predetermined installation position first, and ensure that the snap springs 33 on the side panels 31 are aligned with the components to be installed (such as the installation openings or hooks on the wall or ceiling), and then pressure is applied to cause the other end of the snap springs 33 to undergo elastic deformation and smoothly snap into the corresponding structure of the component to be installed. Due to the elastic action of the snap springs 33, the sensor will be firmly fixed in the installation position.

[0024] As an implementation method in this embodiment, Figure 3 As shown, snap-fitting protrusions 16 are fixedly connected to the two opposite outer walls on the top of the middle cover 11, and snap-fitting interfaces 17 are provided on the two opposite walls on the bottom of the upper cover 15. The upper cover 15 is snap-fitted to the middle cover 11 through the snap-fitting interfaces 17 and the snap-fitting protrusions 16. During specific use, key components such as the control part PCB 13 and the 24G microwave detection module 14 are installed on the middle cover 11 according to design requirements, and then the upper cover 15 is aligned with the middle cover 11 to ensure that the snap-fitting interface 17 is aligned with the snap-fitting protrusions 16. Then, the card interface 17 and the snap-fitting protrusions 16 are tightly combined by applying appropriate pressure, thereby completing the snap-fitting of the upper cover 15 and the middle cover 11.

[0025] As an implementation method in this embodiment, Figure 5 As shown, a screw hole 18 for fixing the wire pressing plate 101 is opened on the lower end surface of the bottom cover 1 to fix the wire pressing plate 101 to the bottom cover 1.

[0026] As an implementation method in this embodiment, Figure 5 As shown, a wire outlet hole 19 for passing the power cord is opened on one side of the bottom cover 1. The power supply part PCB 12 is electrically connected to the external power supply through the wire outlet hole 19. The setting of the wire outlet hole 19 ensures that the power cord can pass through smoothly and connect to the external power supply.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A microwave presence sensor, comprising a bottom cover (1), characterized in that: The upper end surface of the bottom cover (1) is provided with a wire pressing plate (101), the inner side of the bottom cover (1) is fixedly connected with a middle cover (11), the upper end surface of the middle cover (11) is fixedly connected with a power supply part PCB (12), the upper end surface of the power supply part PCB (12) is fixedly installed with a control part PCB (13), the upper end surface of the control part PCB (13) is fixedly installed with a 24G microwave detection module (14), the middle cover (11) is detachably fixed with an upper cover (15), the top of the upper cover (15) is provided with an auxiliary component (2) for assisting in fixing the control part PCB (13), and the two opposite side walls of the top of the upper cover (15) are provided with a clamping component (3) for assisting in installing a microwave presence sensor.

2. The microwave presence sensor according to claim 1, characterized in that: The auxiliary component (2) includes a plurality of potentiometers (21), and the plurality of potentiometers (21) are fixed in an array on the upper end surface of the control part PCB (13). The plurality of potentiometers (21) are each provided with a threaded hole (22). The top side wall of the upper cover (15) is provided with an array of mounting holes (23). The mounting holes (23) and the threaded holes (22) are provided with matching knobs (24) inserted into the inner sides.

3. The microwave presence sensor according to claim 1, characterized in that: The clamping assembly (3) comprises side plates (31) symmetrically arranged on both side walls of the upper cover (15), and both sides of the two side plates (31) are fixedly connected with fixing columns (32), and a snap spring (33) is sleeved on the fixing column (32), and one end of the snap spring (33) is fixed to the side wall of the side plate (31), and the other end of the snap spring (33) is used for clamping to an external component to be installed.

4. The microwave presence sensor according to claim 1, characterized in that: The middle cover (11) has two opposite outer walls at the top fixedly connected with snap-fit protrusions (16), and the upper cover (15) has two opposite outer walls at the bottom provided with snap-fit interfaces (17). The upper cover (15) is snap-fitted to the middle cover (11) via the snap-fit interfaces (17) and the snap-fit protrusions (16).

5. The microwave presence sensor according to claim 1, characterized in that: The lower end surface of the bottom cover (1) is provided with a screw hole (18) for fixing the wire pressing plate (101).

6. The microwave presence sensor according to claim 1, characterized in that: A wire outlet hole (19) for passing a power line is provided on one side of the bottom cover (1), and the power supply part PCB (12) is electrically connected to an external power source through the wire outlet hole (19).

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