Safety control electromagnetic lock of washing machine
By wrapping the enameled coil on the coil holder of the washing machine electromagnetic lock and installing a fixed iron core, combining the movable lock core and the limiting mechanism, a low-voltage and low-power washing machine safety control electromagnetic lock is designed, which solves the existing electromagnetic lock's problems of high voltage, loud sound, large radiation, fast heating and safety hazards, and achieves a long-life and high-safe electromagnetic lock.
Patent Information
- Application Number
- CN202421291408.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing washing machine electromagnetic locks have problems such as high voltage, high frequency electromagnetic sound during operation, high radiation, fast heating, short life and safety hazards.
A washing machine security-controlled electromagnetic lock is designed, and an enameled coil is wound on the coil rack, and a fixed iron core is installed on the back of the coil rack. The movable lock core and limiting mechanism are used, combined with the detection switch and guide rod, to achieve a working state with low voltage, low power consumption, and no high-frequency electromagnetic sound and radiation.
It achieves low working voltage, low power consumption, no high-frequency electromagnetic sound, no radiation, slow heating and long service life, effectively avoids coil bursting and improves safety during use.
Smart Images
Figure CN222557278U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic control locks, and more specifically to a washing machine electromagnetic control lock. Background Art
[0002] The design of electromagnetic lock (or magnetic lock) is the same as that of electromagnet, which uses the principle of electromagnetism. When the current passes through the silicon steel sheet, the electromagnetic lock will generate a strong suction force to tightly absorb the adsorption iron plate to achieve the effect of locking the door. As long as the current is small, the electromagnetic lock will generate a huge magnetic force. The access control system that controls the power supply of the electromagnetic lock will cut off the power after identifying the correct person, and the electromagnetic lock will lose its suction and the door can be opened.
[0003] For safety reasons, all washing machines on the market, whether they are pulsator washing machines or drum washing machines, need to be equipped with electromagnetic locks (child locks). Existing electromagnetic locks are all 220V or 110V AC voltage, which has the problems of high voltage, high-frequency electromagnetic sound when working, large radiation, fast heating, short life, and lock body coil bursting in the market, posing a safety hazard. Therefore, in order to solve the above problems, a better electromagnetic lock for washing machine safety control is very necessary. Utility Model Content
[0004] The main technical problem solved by the utility model is to provide a washing machine safety control electromagnetic lock, which can solve the problems raised by the above-mentioned background technology.
[0005] To solve the above technical problems, according to one aspect of the utility model, more specifically, a washing machine security control electromagnetic lock includes a lower cover, the top of the lower cover is fixedly connected to an upper cover, a lock tongue is slidably provided on one side of the lower cover and the upper cover, a plurality of contacts are fixedly provided on one side of the lock tongue, a limiting mechanism is slidably provided on one side of the lock tongue, the limiting mechanism is fixedly provided between the lower cover and the upper cover, a coil frame is fixedly provided between the lower cover and the upper cover on one side of the limiting mechanism, an enameled coil is wound around the outer side of the coil frame, a power cord is fixedly provided on one side of the lower cover and the upper cover, and a fixed iron core is fixedly provided on the rear side of the coil frame.
[0006] Furthermore, a detection switch is fixedly provided on one side of the lock tongue at the top of the lower cover, a button is rotatably provided on the side of the detection switch that is in contact with the lock tongue, a guide rod is fixedly provided on the rear side of the lock tongue on the side in contact with the detection switch, a PCB board is fixedly provided on one side of the detection switch at the top of the lower cover, and the PCB board is electrically connected to the detection switch and the power cord.
[0007] Furthermore, the limiting mechanism includes a movable lock core with one end slidably set inside the lock tongue, and the other end of the movable lock core is slidably set inside the coil frame. A compression spring is provided on the movable sleeve outside the movable lock core, and the two ends of the compression spring are tightly fitted with the lock tongue and the coil frame respectively.
[0008] Furthermore, the limiting mechanism also includes a positioning lock pin slidably arranged on one side of the top of the lock tongue, the other end of the positioning lock pin is fixedly connected to one side of the bottom of the upper cover, the top of the lock tongue is tightly fitted with a limiting spring sheet on one side of the positioning lock pin, and one side of the limiting spring sheet is fixedly connected to one side of the bottom of the upper cover.
[0009] Furthermore, a signal line is fixedly arranged on the inner side of the power cord, a plug is fixedly arranged on one end of the power cord, the plug is a 4P line with a 39612-4P standard head, and a buckle is fixedly arranged on one side of the top of the plug.
[0010] Furthermore, three clamping holes are fixedly provided on the outer side of the upper cover, and clamping blocks are fixedly provided on the outer side of the lower cover at the bottom of the three clamping holes, and the three clamping blocks are respectively matched with the three clamping holes, and two fixing screws are threadedly connected to one side of the top of the upper cover, and the two fixing screws pass through the upper cover and are threadedly connected to the lower cover.
[0011] Furthermore, a plurality of anti-skid pads are fixedly provided on the bottom of the lower cover, a fixing hole is fixedly provided on one side of the lower cover, and both the lower cover and the upper cover are flat in shape.
[0012] The beneficial effects of the electromagnetic lock for washing machine safety control of the utility model are:
[0013] By winding the enameled coil on the coil frame, the fixed iron core is installed on the back side of the coil frame to increase the magnetic attraction. One end of the movable lock core is inserted from one side of the compression spring and sleeved on the lock tongue, and the other end is extended into the inner side of the coil frame. When the electromagnetic coil is energized, the lock tongue is driven by the magnetic attraction of the coil, which makes the working voltage low, the power consumption low, no high-frequency electromagnetic sound, no radiation, slow heat generation, long service life, effectively avoiding coil bursting, and improving safety during use.
[0014] By fixing one end of the positioning lock pin on one side of the top of the coil frame and the other end on the top of the lock tongue, the position of the lock tongue is fixed when the coil frame is powered off. The guide rod of the lock tongue extends to the detection switch. When the lock tongue moves with the movable lock core, the detection switch outputs the closing and opening signals to the main control board, making the status display more accurate. At the same time, it is convenient to quickly find the damaged part and repair it when it is damaged, which effectively improves the practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0016] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic lock for washing machine safety control of the utility model;
[0017] Figure 2 This is a schematic diagram of the bottom structure of the electromagnetic lock for washing machine safety control of the utility model;
[0018] Figure 3 This is an exploded schematic diagram of the internal structure of the electromagnetic lock for the washing machine safety control of the utility model;
[0019] Figure 4 for Figure 1 A magnified view of the structure.
[0020] In the figure: 1. lower cover; 10. fixing screw; 11. fixing hole; 12. clamping block; 2. upper cover; 20. clamping hole; 21. anti-slip pad; 3. plug; 30. power cord; 31. buckle; 4. lock tongue; 40. compression spring; 41. movable lock core; 42. coil frame; 43. fixed iron core; 44. contact; 45. positioning lock pin; 46. limit spring; 5. PCB board; 50. detection switch. DETAILED DESCRIPTION
[0021] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.
[0022] like Figure 1-4 As shown, according to one aspect of the utility model, a washing machine safety control electromagnetic lock is provided, including a lower cover 1, the top of the lower cover 1 is fixedly connected to an upper cover 2, a lock tongue 4 is slidably provided on one side of the lower cover 1 and the upper cover 2, a plurality of contacts 44 are fixedly provided on one side of the lock tongue 4, a limiting mechanism is slidably provided on one side of the lock tongue 4, the limiting mechanism is fixedly provided between the lower cover 1 and the upper cover 2, a coil frame 42 is fixedly provided on one side of the limiting mechanism between the lower cover 1 and the upper cover 2, 900 turns of enameled wire are wound around the outer side of the coil frame 42, a power cord 30 is fixedly provided on one side of the lower cover 1 and the upper cover 2, and a coil 42 is fixedly provided on one side of the lower cover 1 and the upper cover 2. A fixed iron core 43 is fixedly provided on the rear side of the frame 42. By winding 900 turns of enameled wire on the coil frame 42, the fixed iron core 43 is installed on the rear side of the coil frame 42 to increase the magnetic attraction. One end of the movable lock core 41 is inserted from one side of the compression spring 40 and is sleeved on the lock tongue 4, and the other end is extended into the inner side of the coil frame 42. When the electromagnetic coil is energized, the lock tongue 4 is driven to move due to the magnetic attraction of the coil, so that the working voltage is low, the power consumption is low, there is no high-frequency electromagnetic sound, no radiation, slow heat generation, long service life, effectively avoiding coil bursting, and improving safety during use.
[0023] In this embodiment, a detection switch 50 is fixedly provided on one side of the lock tongue 4 at the top of the lower cover 1, and a button is rotatably provided on the side of the detection switch 50 that is in contact with the lock tongue 4. A guide rod is fixedly provided on the rear side of the lock tongue 4 on the side in contact with the detection switch 50. A PCB board 5 is fixedly provided on one side of the detection switch 50 at the top of the lower cover 1. The PCB board 5 is electrically connected to the detection switch 50 and the power cord 30. The guide rod of the lock tongue 4 extends to the detection switch 50. The detection switch 50 outputs a closing and opening signal to the main control board when the lock tongue moves with the movable lock core 41, so that the status display is more accurate.
[0024] In this embodiment, the limiting mechanism includes a movable lock core 41 with one end slidably set inside the lock tongue 4, and the other end of the movable lock core 41 is slidably set inside the coil frame 42. A compression spring 40 is movably sleeved on the outer side of the movable lock core 41. The two ends of the compression spring 40 are tightly fitted with the lock tongue 4 and the coil frame 42 respectively. By fixing one end of the positioning lock pin 45 on one side of the top of the coil frame 42 and the other end moving on the top of the lock tongue 4, the position of the lock tongue 4 is fixed when the coil frame 42 is powered off.
[0025] In this embodiment, the limiting mechanism also includes a positioning lock pin 45 slidably disposed on one side of the top of the lock tongue 4, the other end of the positioning lock pin 45 is fixedly connected to one side of the bottom of the upper cover 2, the top of the lock tongue 4 is tightly fitted with a limiting spring 46 on one side of the positioning lock pin 45, and one side of the limiting spring 46 is fixedly connected to one side of the bottom of the upper cover 2. By fixing one end of the positioning lock pin 45 on one side of the top of the coil frame 42 and the other end moving on the top of the lock tongue 4, the position of the lock tongue 4 is fixed when the coil frame 42 is powered off. The guide rod of the lock tongue 4 extends to the detection switch 50, and the detection switch 50 outputs a closing and opening signal to the main control board when the lock tongue moves with the movable lock core 41, so that the display of the status is more accurate, and it is convenient to quickly find the damaged part and repair it when it is damaged.
[0026] In this embodiment, a signal line is fixedly arranged on the inner side of the power cord 30, a plug 3 is fixedly arranged on one end of the power cord 30, the plug 3 is a 4P line with a 39612-4P standard head, and a buckle 31 is fixedly arranged on one side of the top of the plug 3. The above arrangement makes the power and signal connection more stable.
[0027] In this embodiment, three clamping holes 20 are fixedly provided on the outer side of the upper cover 2, and clamping blocks 12 are fixedly provided on the outer side of the lower cover 1 at the bottom of the three clamping holes 20. The three clamping blocks 12 are respectively matched with the three clamping holes 20. Two fixing screws 10 are threadedly connected to one side of the top of the upper cover 2. The two fixing screws 10 pass through the upper cover 2 and are threadedly connected to the lower cover 1. The above arrangement effectively facilitates the installation and disassembly of the device.
[0028] In this embodiment, a plurality of anti-slip pads 21 are fixedly provided at the bottom of the lower cover 1, and a fixing hole 11 is fixedly provided on one side of the lower cover 1. Both the lower cover 1 and the upper cover 2 are flat in shape and have a flat design. They are thin in thickness and are fixed by the fixing holes 11 and the card holes 20. They are easy and stable to install and have a small volume.
[0029] The working principle of the device is as follows: 900 turns of enameled wire are wound on the coil frame 42, and the fixed iron core 43 is installed on the rear side of the coil frame 42 to increase the magnetic attraction. One end of the movable lock core 41 is inserted from one side of the compression spring 40 and is sleeved on the lock tongue 4, and the other end is extended into the inner side of the coil frame 42. When the electromagnetic coil is energized, the lock tongue 4 is driven to move due to the magnetic attraction of the coil, so that the working voltage is low, the power consumption is low, there is no high-frequency electromagnetic sound, no radiation, slow heating, long service life, and effective prevention of coil bursting. One end of the positioning lock pin 45 is fixed on one side of the top of the coil frame 42, and the other end is movable on the top of the lock tongue 4 to fix the position of the lock tongue 4 when the coil frame 42 loses power. The guide rod of the lock tongue 4 extends to the detection switch 50. When the lock tongue moves with the movable lock core 41, the detection switch 50 outputs the closing and opening signals to the main control board, so that the display of the status is more accurate, and it is convenient to quickly find the damaged part for repair when it is damaged.
[0030] The electrical components that appear in this article are all electrical components that exist in reality.
[0031] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.
Claims
1. A washing machine safety control electromagnetic lock, comprising a lower cover (1), characterized in that: The top of the lower cover (1) is fixedly connected to the upper cover (2); a lock tongue (4) is slidably provided on one side of the lower cover (1) and the upper cover (2); a plurality of contacts (44) are fixedly provided on one side of the lock tongue (4); a limiting mechanism is slidably provided on one side of the lock tongue (4); the limiting mechanism is fixedly provided between the lower cover (1) and the upper cover (2); a coil frame (42) is fixedly provided on one side of the limiting mechanism between the lower cover (1) and the upper cover (2); 900 turns of enameled wire are wound around the outer side of the coil frame (42); a power cord (30) is fixedly provided on one side of the lower cover (1) and the upper cover (2); and a fixed iron core (43) is fixedly provided on the rear side of the coil frame (42).
2. The electromagnetic lock for safety control of washing machine according to claim 1, characterized in that: A detection switch (50) is fixedly arranged on one side of the lock tongue (4) at the top of the lower cover (1); a button is rotatably arranged on the side of the detection switch (50) that is in contact with the lock tongue (4); a guide rod is fixedly arranged on the rear side of the lock tongue (4) on the side in contact with the detection switch (50); a PCB board (5) is fixedly arranged on one side of the detection switch (50) at the top of the lower cover (1); and the PCB board (5) is electrically connected to the detection switch (50) and the power line (30).
3. The electromagnetic lock for safety control of washing machine according to claim 1, characterized in that: The limiting mechanism comprises a movable lock core (41) having one end slidably disposed inside the lock tongue (4), the other end of the movable lock core (41) being slidably disposed inside the coil frame (42), a compression spring (40) being provided on a movable sleeve outside the movable lock core (41), and two ends of the compression spring (40) being respectively tightly fitted with the lock tongue (4) and the coil frame (42).
4. The electromagnetic lock for safety control of washing machine according to claim 3, characterized in that: The limiting mechanism further comprises a positioning lock pin (45) slidably arranged on one side of the top of the lock tongue (4); the other end of the positioning lock pin (45) is fixedly connected to one side of the bottom of the upper cover (2); the top of the lock tongue (4) is tightly fitted with a limiting spring sheet (46) on one side of the positioning lock pin (45); and one side of the limiting spring sheet (46) is fixedly connected to one side of the bottom of the upper cover (2).
5. The electromagnetic lock for safety control of washing machine according to claim 1, characterized in that: A signal line is fixedly arranged inside the power line (30), a plug (3) is fixedly arranged at one end of the power line (30), the plug (3) is a 4P line with a 39612-4P standard head, and a buckle (31) is fixedly arranged on one side of the top of the plug (3).
6. The electromagnetic lock for safety control of washing machine according to claim 1, characterized in that: The outer side of the upper cover (2) is fixedly provided with three clamping holes (20); the outer side of the lower cover (1) is fixedly provided with clamping blocks (12) at the bottom of the three clamping holes (20); the three clamping blocks (12) respectively cooperate with the three clamping holes (20); one side of the top of the upper cover (2) is threadedly connected with two fixing screws (10); the two fixing screws (10) penetrate the upper cover (2) and are threadedly connected with the lower cover (1).
7. The electromagnetic lock for safety control of washing machine according to claim 1, characterized in that: A plurality of anti-slip pads (21) are fixedly provided at the bottom of the lower cover (1), a fixing hole (11) is fixedly provided at one side of the lower cover (1), and both the lower cover (1) and the upper cover (2) are flat in shape.