CN218469396U - Magnetic induction switch of refrigerator drawer and refrigerator thereof - Google Patents
Magnetic induction switch of refrigerator drawer and refrigerator thereof Download PDFInfo
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- CN218469396U CN218469396U CN202222305473.5U CN202222305473U CN218469396U CN 218469396 U CN218469396 U CN 218469396U CN 202222305473 U CN202222305473 U CN 202222305473U CN 218469396 U CN218469396 U CN 218469396U
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- 230000006698 induction Effects 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 abstract description 5
- 230000005236 sound signal Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
The utility model relates to a refrigerator switch door technical field, concretely relates to magnetic induction switch of refrigerator drawer to and the refrigerator of this kind of switch of installation. The magnetic induction switch comprises a magnet, a spring switch, a circuit and a display alarm, wherein the magnet is arranged on the upper frame of a drawer door frame of the refrigerator body, the spring switch is arranged at the top end of the drawer door plate, and the magnet is matched with the mounting position and size of the spring switch; the circuit comprises a main control board and a connecting wire, wherein a timer is installed on the main control board circuit, and the main control board is connected with the spring switch and the display alarm through the connecting wire. The utility model discloses a magnetic induction switch replaces traditional mechanical door switch, and when the drawer pushed into and closed the door, spring switch was close to magnet and makes the switch closed, and the time-recorder begins the timing during disconnection, and off-time surpasses 3min and shows that the alarm is reported to the police, judges whether close of refrigerator drawer door to the accurate on-off state who judges the door body.
Description
Technical Field
The utility model relates to a refrigerator switch door technical field, concretely relates to magnetic induction switch of refrigerator drawer and refrigerator thereof.
Background
At present, all refrigerators containing drawer type temperature areas in the market adopt sliding doors, and a mechanical switch judges the opening and closing states of the doors. Under the general condition, the door is opened, the door switch is closed and the door is opened; when the door is pushed in, the door switch is switched off, and the door is switched off.
When irregular articles are plugged into the drawer, the refrigerator door can be blocked, the drawer cannot be pushed into the refrigerator completely, but the temperature change area is leaked cold due to incorrect identification of the door switch, the temperature pulling effect is poor, and the workload of the press is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a magnetic induction switch of refrigerator drawer is provided to and the refrigerator of this kind of push-and-pull door switch of installation. The technical scheme adopted is as follows:
a magnetic induction switch of a refrigerator drawer comprises a magnet, a spring switch, a circuit and a display alarm, wherein a magnet mounting groove matched with the magnet is formed in a drawer door frame, and the magnet is fixed in the magnet mounting groove; a spring switch mounting groove matched with the spring switch is formed in the top end of the drawer door plate, and one end of the spring switch is fixed in the spring switch mounting groove;
the circuit comprises a main control board and a connecting wire, a timer is installed on the main control board circuit, the main control board is connected with a spring switch and a display alarm through the connecting wire, the circuit is installed inside the drawer door plate, and the display alarm is installed on the outer side of the drawer door plate.
Preferably, the magnet mounting groove is formed in the center of the upper side frame of the drawer door frame.
Preferably, the spring switch mounting groove is arranged in the center of the top end of the drawer door panel; spring switch includes the connecting wire at spring leaf and spring leaf both ends, wherein, spring leaf one end is fixed at the spring switch mounting groove, and connects the connecting wire of a main control board, and the other end of spring leaf is portable, and is close to (the joint of connecting wire promptly explores out the drawer door plant and with a spring leaf interval short-segment distance) with another connecting wire of main control board, and when spring switch was close to magnet, magnet attracted the spring leaf and made the spring leaf be close to the direction of magnet to connect another connecting wire, make the switch closure.
Preferably, the magnet is matched with the spring piece in position and size.
Preferably, the display alarm comprises a buzzer and a display panel, the display panel is mounted at the upper right corner of the drawer door panel, and the buzzer is embedded in a mounting groove formed in the drawer door panel.
A refrigerator is characterized in that at least one drawer type temperature area is arranged below a refrigerator body of the refrigerator, and the magnetic induction switch of the refrigerator drawer is arranged on a drawer door plate and a drawer door frame.
Compared with the prior art, the utility model discloses an useful part lies in:
the utility model discloses a replace traditional mechanical door switch with the magnetic induction switch, spring leaf of spring switch is made by soft magnetic metal material, is magnetized easily in magnetic field environment, leaves also easy demagnetization behind the magnetic field environment for the switch action is stable, is difficult for receiving external disturbance. The display alarm part is integrated on a main control panel of the refrigerator, and the spring switch is connected and packaged in the push-pull drawer door body through pins; the magnet is packaged in the drawer door frame of the box body, and when the drawer is pushed in and closed, the spring piece of the spring switch is attracted by the magnet to close the switch; during the disconnection, can judge whether close well refrigerator drawer door through the accurate timing of time-recorder to the accurate on-off state who judges the door body, the interference killing feature is strong, and the rate of accuracy promotes.
Drawings
Fig. 1 is an exploded view of a magnetic induction switch of a refrigerator drawer according to the present invention;
FIG. 2 is a circuit diagram of the present invention;
fig. 3 is an alarm state diagram of the present invention.
In the figure, 11-door body, 12-drawer, 13-spring piece, 14-display alarm, 15-spring switch mounting groove, 16-magnet, 17-magnet mounting groove and 18-box body.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for a better understanding of the present embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; for those skilled in the art, some well-known structures in the drawings and descriptions thereof may be omitted; the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like refer to orientations or positional relationships based on those shown in the drawings, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a magnetic induction switch of a refrigerator drawer comprises a magnet 16, a spring switch, a circuit and a display alarm 14, wherein a magnet mounting groove 17 matched with the magnet 16 is formed in a drawer 12 door frame of a refrigerator box 18 and is positioned in the center of the door frame on the drawer 12, and the magnet 16 is fixed in the magnet mounting groove 17. The magnet 16 is matched with the position of a spring switch, and the spring switch comprises a spring piece 13 and connecting lines at two ends of the spring piece 13; one end of the spring piece 13 is fixed and connected with one connecting line of the main control board, the other end of the spring piece is close to the other connecting line of the main control board, and the spring piece 13 can be attracted by the magnet 16 and is connected with the other connecting line to realize the closing of the switch.
The spring switch is installed at the top end of a door plate of the drawer 12, a spring switch installation groove 15 matched with the spring sheet is formed in the center of the top end of the door plate of the drawer 12, one end of the spring sheet 13 is fixed in the spring switch installation groove 15 and is connected with one connecting line (namely the pin 5) of the main control board, the other end of the spring sheet can move and is close to the other connecting line (namely the pin 7), when the spring switch is close to the magnet 16, under the action of a magnetic field, the movable end of the spring sheet 13 is close to the direction of the magnet 16, and therefore the other connecting line is connected, and the closing of the spring switch is achieved.
As shown in fig. 2, the circuit includes a main control board and a connecting line, a timer is installed on the main control board, the main control board is connected with the display alarm 14 through the connecting line, the circuit is installed inside the door panel of the drawer 12, and the display alarm 14 is installed outside the door panel of the drawer 12.
The display alarm 14 comprises a buzzer and a display panel, wherein the display panel is arranged at the upper right corner of the door panel of the drawer 12, and the buzzer is embedded in an installation groove formed in the door panel of the drawer 12.
In the magnetic induction switch, the magnet 16 is partially composed of a magnet having a constant magnetic field intensity, and generates a constant magnetic field. R1 is an oscillating resistor and can generate an audio signal; the VT1 is a triode and is responsible for amplifying audio signals; l1 is a boost inductor which can change an audio signal into a higher-voltage audio signal; IC1 is the chip of main control board, and pin 7 is responsible for receiving the signal that the spring switch sent, and pin 6 is responsible for exporting original signal, and pin 8 is responsible for receiving the audio signal after the oscillation resistance is handled, and pin 2 is responsible for exporting audio signal.
As shown in fig. 3, the alarm principle:
a spring piece 13 in the spring switch is positioned at an original position, one end of the spring switch is fixedly connected with the pin 5, and the other end of the spring switch is close to the pin 7;
when the spring switch gradually approaches to the magnet, the spring piece 13 is attracted by the magnet 16, the movable end moves towards the magnet 16 and is connected with the upper pin 7, the switch is switched on and shows the state that the drawer door is closed, at the moment, a signal sent to the display alarm 14 by the main control board is 0, and the system is in a pre-alarm state;
when the magnet 16 is removed, the spring piece 13 leaves the magnetic field and recovers to the original position, the timer starts to time and sends a signal to the main control board, when the disconnection time of the spring piece is less than or equal to 3min, the signal sent by the main control board to the display alarm 14 is 0, and the system is in a pre-alarm state; when the time exceeds 3min, the alarm is started, when the IC1 receives the signal 1, the main control board outputs the signal through the pin 6 and the audio signal which returns to the pin 8 through R1 resistance oscillation, then the audio signal is output to the pin 2 and the signal is amplified through the VT1 triode, the amplified audio signal is coupled through the boost inductor to become an audio signal with higher voltage, and the buzzer is driven to send out a loud alarm signal.
A drawer type temperature area is arranged below a refrigerator body 18 of the refrigerator, and the magnetic induction switch of the refrigerator drawer is arranged on a drawer door plate and a drawer door frame. Other refrigerating areas or freezing areas are arranged above the drawer type temperature area of the refrigerator, and the closing is realized through the door body 1. The drawer-type temperature zones can also be arranged in two.
The working principle is as follows:
after the refrigerator is powered on, the magnetic induction switch of the drawer type temperature area is powered on to be in a pre-alarming state, when the spring piece 13 of the spring switch is in a magnetic field, the spring piece is attracted by magnetic force, the movable end moves towards the direction of the magnet 16, the connecting wire is connected, namely the switch is closed, at the moment, the refrigerator door is judged to be in a closed state, and the display alarm 14 maintains the pre-alarming state; when the spring piece 13 of the spring switch leaves the magnetic field, the spring piece is not influenced by the magnetic field any more, the switch is switched off, the refrigerator door is judged to be in an open state at the moment, when the door opening time is less than or equal to 3min, the display alarm 14 maintains a pre-alarm state, and when the door opening time is more than 3min, the display alarm 14 works to send out an alarm signal; and in the alarm period, if the door is detected not to be closed all the time, the alarm is continuously given, and if the door is detected to be closed, the alarm is stopped, and the pre-alarm state is recovered.
Other parts of the utility model which are not mentioned adopt the common practice in the prior art.
Furthermore, it should be understood that although the present description refers to embodiments, the device of the present invention does not include only a single technical solution, and such description is only for clarity reasons, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments can be combined appropriately to form other embodiments understood by those skilled in the art, and also fall within the protection scope of the present invention.
Claims (6)
1. The magnetic induction switch of the refrigerator drawer is characterized by comprising a magnet, a spring switch, a circuit and a display alarm, wherein the magnet is arranged on a drawer door frame of a refrigerator body, a magnet mounting groove matched with the magnet is formed in the drawer door frame, and the magnet is fixed in the magnet mounting groove; the spring switch is arranged at the top end of the drawer door plate, a spring switch mounting groove matched with the spring switch is formed in the center of the top end of the drawer door plate, and one end of the spring switch is fixed in the spring switch mounting groove;
the circuit comprises a main control board and a connecting wire, a timer is installed on the main control board circuit, the main control board is connected with a spring switch and a display alarm through the connecting wire, the circuit is installed inside the drawer door plate, and the display alarm is installed on the outer side of the drawer door plate.
2. The magnetic induction switch of a refrigerator drawer according to claim 1, wherein the magnet mounting slot is disposed at the center of the upper side frame of the drawer door frame.
3. The magnetic induction switch of the refrigerator drawer according to claim 2, wherein the spring switch comprises a spring plate and connecting wires at two ends of the spring plate; wherein, spring leaf one end is fixed and is connected the connecting wire of a main control board, and the other end can remove, and is close to with another connecting wire of main control board.
4. The magnetic induction switch of the refrigerator drawer according to claim 3, wherein the magnet is matched with the spring plate in position and size.
5. The magnetic induction switch of the refrigerator drawer according to claim 1, wherein the display alarm comprises a buzzer and a display panel, the display panel is mounted at the upper right corner of the drawer door panel, the buzzer is embedded in a mounting groove formed on the drawer door panel, and the display panel and the buzzer are respectively connected with the main control panel through connecting wires.
6. A refrigerator, at least one drawer type temperature zone is arranged below a refrigerator body of the refrigerator, and the refrigerator is characterized in that the magnetic induction switch of the refrigerator drawer is arranged on a drawer door plate and a drawer door frame according to claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222305473.5U CN218469396U (en) | 2022-08-31 | 2022-08-31 | Magnetic induction switch of refrigerator drawer and refrigerator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222305473.5U CN218469396U (en) | 2022-08-31 | 2022-08-31 | Magnetic induction switch of refrigerator drawer and refrigerator thereof |
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| Publication Number | Publication Date |
|---|---|
| CN218469396U true CN218469396U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222305473.5U Active CN218469396U (en) | 2022-08-31 | 2022-08-31 | Magnetic induction switch of refrigerator drawer and refrigerator thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118472821A (en) * | 2024-07-10 | 2024-08-09 | 百胜安科科技股份有限公司 | Intelligent terminal with Beidou positioning function |
-
2022
- 2022-08-31 CN CN202222305473.5U patent/CN218469396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118472821A (en) * | 2024-07-10 | 2024-08-09 | 百胜安科科技股份有限公司 | Intelligent terminal with Beidou positioning function |
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