A shaver with pressure sensing LED light reminder
By using a circuit structure composed of conductive sheets and elastic elements, pressure is identified through contact between a conductive pin and the conductive sheet, which controls the LED light and the vibration of a high-frequency motor. This solves the problem of unstable pressure sensing in shavers, enabling user-friendly force adjustment and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN LEITAI ELECTRIC APPLIANCE MFG CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-23
AI Technical Summary
Existing shavers lack pressure sensing functionality, leading to excessive pressure and skin discomfort for users. High-end shavers employ complex and unstable Hall effect pressure sensors, which are also costly.
The circuit structure, composed of conductive sheets and elastic components, uses conductive pins of different heights to contact the conductive sheets. The control module identifies the conduction signal and controls the LED to emit different colors of light. Combined with the vibration of a high-frequency motor, it reminds the user of the force applied. The structure is simple and easy to manufacture.
It features a simple and reliable pressure-sensing reminder function, allowing users to adjust the shaving intensity based on LED lights and motor vibrations, thus avoiding skin irritation and reducing production costs.
Smart Images
Figure CN224391209U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of shavers, and more particularly to a shaver with pressure-sensitive LED light reminder. [Background Technology]
[0002] Most rotary shavers on the market do not have a pressure warning function. If users apply too much pressure, it can cause discomfort such as redness and stinging after shaving. This is especially common for first-time users of reciprocating shavers. Some high-end shavers use Hall effect pressure sensors for warnings, but these have a complex structure that leads to higher costs. The sensors are also susceptible to instability due to the influence of magnetic force and the cumulative distance tolerance during assembly.
[0003] This utility model was made based on this situation. [Utility Model Content]
[0004] The technical problem to be solved by this utility model is to provide a shaver with pressure-sensitive LED light reminder, which has a simple structure, reliable operation, and is easy to manufacture and assemble.
[0005] This utility model is achieved through the following technical solution:
[0006] A pressure-sensitive LED light-activated shaver includes a handle and a shaver head. The handle houses a light guide frame and a PCB board with an LED light. The light guide frame directs the light emitted by the LED light. A B-fixed seat is mounted on the light guide frame, and a B-conductive sheet is mounted on the B-fixed seat. An A-fixed seat, capable of floating up and down within the light guide frame, is mounted above the B-fixed seat. An elastic element is provided between the B-fixed seat and the A-fixed seat to cause the A-fixed seat to spring upwards. The lower end of the A-fixed seat has an A-conductive sheet. The elastic element is a conductive component, with one end contacting the A-conductive sheet and the other end contacting the B-conductive sheet. The PCB board is located below the B-conductive sheet and has two or more B-conductive pins electrically connected to the B-conductive sheet. When the shaver is powered on, a current path is formed between the PCB board, the B-conductive pins, the B-conductive sheet, the elastic element, and the A-conductive sheet, causing the LED light to emit a first type of light.
[0007] As described above, a pressure-sensitive LED light reminder shaver has several sets of retractable long and short conductive pins located below a conductive plate A on its PCB board. A control module electrically connected to the PCB board is capable of recognizing the conduction signals of the long and short conductive pins. The long and short conductive pins are spaced apart from the conductive plate A. The long conductive pins extend beyond the PCB board at a higher height than the short conductive pins. When the A-fixed base moves downward under external pressure, the A-conductive plate contacts the long conductive pin. When the shaver is powered on, the control module recognizes the conduction signal of the long conductive pin and controls the LED to emit a second type of light. When the A-fixed base continues to move downward under pressure, the A-conductive plate contacts the short conductive pin, and the control module recognizes the conduction signal of the short conductive pin and controls the LED to emit a third type of light.
[0008] As described above, a pressure-sensitive LED light reminder shaver has a first light of white light, a second light of green light, and a third light of red light.
[0009] As described above, a pressure-sensitive LED light reminder shaver has a battery and a main circuit board inside the handle. The handle also has a high-frequency motor electrically connected to the main circuit board. The PCB board is electrically connected to the main circuit board. When the A fixed base is pressed down and moves downward, causing the A conductive plate to contact the short conductive needle, the control module recognizes the conduction signal of the short conductive needle and controls the LED light to emit a third type of light and controls the high-frequency motor to vibrate.
[0010] As described above, in a pressure-sensitive LED light reminder shaver, the long and short conductive needles are distributed in three or more groups along the circumferential direction.
[0011] In the pressure-sensitive LED light reminder shaver described above, the B-type conductive pin, the long conductive pin, and the short conductive pin are POGOPINs.
[0012] As described above, a pressure-sensitive LED light reminder shaver has a drive shaft inside the handle, and a transmission gear set is provided between the high-frequency motor and the drive shaft.
[0013] In the above-described pressure-sensitive LED light reminder shaver, the elastic element is a spring.
[0014] As described above, in a pressure-sensitive LED light reminder shaver, the A mounting base is provided with an insertion slot for connecting to the shaver head.
[0015] As described above, in a pressure-sensitive LED light reminder shaver, the lower end of the B fixing base is provided with a groove for the B conductive sheet to be inserted.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] 1. This utility model shaver has a simple structure and reliable operation. When no pressure is applied, the A fixed base and A conductive plate are in a suspended state under the action of the elastic element. The A conductive plate on the A fixed base is in contact with the elastic element, and the other end of the elastic element is in contact with the B conductive plate. The B conductive plate is in contact with at least two B conductive pins on the PCB board, forming a conductive circuit. When the shaver is turned on, the LED light emits the first type of light, such as a steady white light, indicating that no pressure is applied to the shaver head or that the pressure is too light. When a certain pressure is applied to the shaver head, the A fixed base moves downward under force, and the A conductive plate contacts any one of the long conductive pins, and the LED emits the second type of light, such as a steady green light, indicating that the pressure is appropriate. When the A fixed base continues to be pressed downward, that is, when more pressure is applied to the shaver head, the A conductive plate contacts any one of the short conductive pins, and the LED emits the third type of light, such as a flashing bright red light, or a flashing bright red light while the high-frequency motor vibrates, indicating that the pressure is too high.
[0018] 2. By setting long and short conductive pins of different heights to contact and conduct with conductive plate A, the control module recognizes the conduction signal and controls the LED light to emit different lights to achieve different pressure reminder functions. The structure is simple, the design is ingenious, and it is convenient for users to adjust the shaving intensity in time. [Attached Image Description]
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1 This is a schematic diagram of the structure of the razor handle of this utility model;
[0021] Figure 2 It is along Figure 1 Cross-sectional view along the AA direction;
[0022] Figure 3 yes Figure 1 A schematic diagram of the combined structure of conductive sheet A with elastic element, conductive sheet B, conductive pin B and PCB board in the embodiment;
[0023] Figure 4 It is along Figure 3 Cross-sectional view in the middle BB direction;
[0024] Figure 5 yes Figure 3 Exploded view of the structure shown;
[0025] Figure 6 This is a schematic diagram of the PCB board structure of this utility model;
[0026] Figure 7 This is a schematic diagram of the structure of the razor of this utility model.
Detailed Implementation Methods
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] like Figures 1 to 7 The shaver shown includes a pressure-sensitive LED light indicator, comprising a handle and a shaver head. The handle 1 houses a light guide frame 2 and a PCB board 4 with LED lights 3. The light guide frame 2 guides the light emitted by the LED lights 3. A B-fixed seat 5 is mounted on the light guide frame 2, and a B-conductive sheet 51 is provided on the B-fixed seat 5. An A-fixed seat 6, capable of floating up and down within the light guide frame 2, is mounted above the B-fixed seat 5. An elastic element 7 is provided between the B-fixed seat 5 and the A-fixed seat 6 to allow the A-fixed seat 6 to spring upwards. The lower end of the A-fixed base 6 is provided with an A-conductive sheet 61. The elastic element 7 is a conductive element, with one end of the elastic element 7 in contact with the A-conductive sheet 61 and the other end in contact with the B-conductive sheet 51. The PCB board 4 is located below the B-conductive sheet 51. The PCB board 4 is provided with two or more B-conductive pins 8 electrically connected to the B-conductive sheet 51. When the shaver is powered on, the PCB board 4, B-conductive pins 8, B-conductive sheet 51, elastic element 7, and A-conductive sheet 61 form a current path, causing the LED light 3 to emit the first type of light. In this shaver, when no pressure is applied, the A-fixed base and A-conductive sheet are in a suspended state under the action of the elastic element. The A-conductive sheet on the A-fixed base is in contact with the elastic element, and the other end of the elastic element is in contact with the B-conductive sheet. The B-conductive sheet is in contact with at least two (or more) B-conductive pins on the PCB board, forming a conductive circuit. When the shaver is powered on, the LED light emits the first type of light, such as a continuous white light, indicating that no pressure is applied to the shaver head or that the pressure is too light.
[0029] Among them, the B-type conductive pin 8 adopts a POGOPIN mechanical spring pin structure.
[0030] See Figure 4 and 5The PCB board 4 is provided with several sets of retractable long conductive pins 9 and short conductive pins 10 located below the A conductive sheet 61. The PCB board 4 is electrically connected to a control module that can identify the conduction signals of the long conductive pins 9 and short conductive pins 10. The long conductive pins 9 and short conductive pins 10 are spaced apart from the A conductive sheet 61. The height of the long conductive pins 9 extending out of the PCB board 4 is higher than that of the short conductive pins 10. When the A fixing seat 6 moves downward under external pressure, the A conductive sheet 61 contacts the long conductive pins 9. When the shaver is powered on, the control module recognizes the conduction signal of the long conductive pins 9 and controls the LED light 3 to emit a second type of light. When the A fixing seat 6 continues to be pressed downward, the A conductive sheet 61 contacts the short conductive pins 10, and the control module recognizes the conduction signal of the short conductive pins 10 and controls the LED light 3 to emit a third type of light. The long conductive needles 9 and short conductive needles 10 can be arranged in one or more groups, and can be distributed in three or more groups along the circumference, that is, there are three or more long conductive needles 9 and three or more short conductive needles 10. The long conductive needles 9 can be distributed on the outside of the short conductive needles 10, or they can be arranged on the inside of the short conductive needles 10. When the shaver is turned on, when a certain pressure is applied to the shaver head, the A fixing seat 6 moves downward under pressure, and the A conductive plate 61 comes into contact with one or more of the long conductive needles 9. The LED emits a second type of light, such as a solid green light, indicating that the pressure is appropriate. When the A fixing seat 6 continues to move downward under pressure, that is, when more pressure is applied to the shaver head, the A conductive plate 61 comes into contact with one or more of the short conductive needles 10. The LED emits a third type of light, such as a flashing red light, indicating that the pressure is too high.
[0031] Among them, LED lights 3 can be set to multiple ones and distributed along the circumference of PCB board 4.
[0032] Furthermore, such as Figure 1 As shown, the handle 1 contains a battery 11 and a main circuit board 12. The handle 1 also contains a high-frequency motor 13 electrically connected to the main circuit board 12. The PCB board 4 is electrically connected to the main circuit board 12. When the A fixing seat 6 is pressed downwards, causing the A conductive plate 61 to contact the short conductive pin 10, the control module detects the conduction signal of the short conductive pin 10 and controls the LED light 3 to emit a third type of light and controls the high-frequency motor 13 to vibrate. That is, when excessive force is applied to the blade, the LED emits a third type of light, such as flashing a bright red light, while the high-frequency motor vibrates at a high frequency.
[0033] Among them, the long conductive needle 9 and the short conductive needle 10 adopt the POGOPIN mechanical spring needle structure.
[0034] See Figure 1 The handle 1 is provided with a drive shaft 14, and a transmission gear set 15 is provided between the high-frequency motor 13 and the drive shaft 14.
[0035] See Figure 1 The A fixed base 6 is provided with an insertion groove 62 for connecting with the cutter head, and the cutter head is installed on the A fixed base 6.
[0036] In this invention, the elastic element 7 is a return spring.
[0037] See Figure 4 The lower end of the B fixing base 5 is provided with a groove 52 for the B conductive sheet 51 to be inserted. The B conductive sheet 51 can be of an annular structure.
Claims
1. A shaver with pressure-sensitive LED light reminder, comprising a handle (1) and a shaver head, characterized in that: The handle (1) contains a light guide frame (2) and a PCB board (4) with an LED lamp (3). The light guide frame (2) is used to guide the light emitted by the LED lamp (3). A B fixing seat (5) is installed on the light guide frame (2). A B conductive sheet (51) is provided on the B fixing seat (5). An A fixing seat (6) that can float up and down inside the light guide frame (2) is installed above the B fixing seat (5). An elastic element (7) that makes the A fixing seat (6) spring upward is provided between the B fixing seat (5) and the A fixing seat (6). The lower end of the A fixing seat (6) is provided with A conductive sheet (61), the elastic element (7) is a conductive element, one end of the elastic element (7) is in contact with A conductive sheet (61), and the other end is in contact with B conductive sheet (51). The PCB board (4) is located below B conductive sheet (51). The PCB board (4) is provided with two or more B conductive pins (8) that are electrically connected to B conductive sheet (51). When the shaver is turned on, the PCB board (4), B conductive pins (8), B conductive sheet (51), elastic element (7) and A conductive sheet (61) are connected to form a current path and the LED lamp (3) emits the first type of light.
2. The shaver with pressure-sensitive LED light reminder according to claim 1, characterized in that: The PCB board (4) is provided with several sets of retractable long conductive pins (9) and short conductive pins (10) located below the A conductive sheet (61). The PCB board (4) is electrically connected to a control module that can identify the conduction signals of the long conductive pins (9) and short conductive pins (10). The long conductive pins (9) and short conductive pins (10) are spaced apart from the A conductive sheet (61). The height of the long conductive pins (9) extending out of the PCB board (4) is higher than that of the short conductive pins (10). When the A fixed base (6) moves downward under external pressure, the A conductive sheet (61) contacts the long conductive needle (9). When the shaver is powered on, the control module detects the conduction signal of the long conductive needle (9) and controls the LED light (3) to emit a second type of light. When the A fixed base (6) continues to move downward under pressure, the A conductive sheet (61) contacts the short conductive needle (10). The control module detects the conduction signal of the short conductive needle (10) and controls the LED light (3) to emit a third type of light.
3. A shaver with pressure-sensitive LED light reminder according to claim 2, characterized in that: The first type of light is white light, the second type of light is green light, and the third type of light is red light.
4. A shaver with pressure-sensitive LED light reminder according to claim 2, characterized in that: The handle (1) contains a battery (11) and a main circuit board (12). The handle (1) contains a high-frequency motor (13) electrically connected to the main circuit board (12). The PCB board (4) is electrically connected to the main circuit board (12). When the A fixed base (6) is pressed down and moves to make the A conductive plate (61) contact the short conductive needle (10), the control module recognizes the conduction signal of the short conductive needle (10) and controls the LED light (3) to emit a third kind of light and controls the high-frequency motor (13) to vibrate.
5. A shaver with pressure-sensitive LED light reminder according to any one of claims 2-4, characterized in that: The long conductive needle (9) and the short conductive needle (10) are distributed in three or more groups along the circumferential direction.
6. A shaver with pressure-sensitive LED light reminder according to any one of claims 2-4, characterized in that: The B-type conductive pin (8), the long conductive pin (9), and the short conductive pin (10) are POGOPINs.
7. A shaver with pressure-sensitive LED light reminder according to claim 4, characterized in that: The handle (1) is provided with a drive shaft (14), and a transmission gear set (15) is provided between the high-frequency motor (13) and the drive shaft (14).
8. A shaver with pressure-sensitive LED light reminder according to claim 1, characterized in that: The elastic element (7) is a spring.
9. A shaver with pressure-sensitive LED light reminder according to claim 1, characterized in that: The A fixing seat (6) is provided with an insertion slot (62) for connecting with the cutter head.
10. A shaver with pressure-sensitive LED light reminder according to claim 1, characterized in that: The lower end of the B fixing seat (5) is provided with a groove (52) for the B conductive sheet (51) to be inserted.