CN110519568B

CN110519568B - Magnetic-dynamic self-switching infrared monitor

Info

Publication number: CN110519568B
Application number: CN201910835372.9A
Authority: CN
Inventors: 王金鑫; 饶杨扬; 杨静
Original assignee: Anhui Zhuocheng Technology Co Ltd
Current assignee: Anhui Zhuocheng Technology Co., Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-12-18
Anticipated expiration: 2039-09-05
Also published as: CN110519568A

Abstract

The invention belongs to the field of monitoring equipment, and particularly relates to a magnetic-type self-switching infrared monitor which comprises a cylindrical shell, wherein a monitoring head is installed at the upper half part of the shell, arc-shaped blocks are arranged on two sides of the monitoring head, a vertical slide way is formed between the two arc-shaped blocks, an infrared cut-off plate is connected in the slide way in a sliding mode, a frame of the infrared cut-off plate is made of magnetic materials, an electromagnet is embedded in the upper part of the shell, the infrared cut-off plate can be attracted to the uppermost side of the slide way in the power-on state of the electromagnet, so that external infrared rays can be blocked outside the monitoring head by the infrared cut-off plate, a temperature control switch is arranged on the shell, and the temperature control switch, the electromagnet and an external power supply are coupled. The infrared cut-off board is controlled to switch by arranging the temperature control switch, so that the flexibility is higher, the infrared cut-off board can be automatically adjusted according to weather conditions, the influence of infrared rays on the monitor is reduced to the greatest extent, and the enough light inlet quantity of the monitor can be ensured.

Description

Magnetic-dynamic self-switching infrared monitor

Technical Field

The invention belongs to the field of monitoring equipment, and particularly relates to a magnetic-driven self-switching infrared monitor.

Background

With the increasing popularity of closed circuit monitoring in civil and commercial applications, surveillance cameras are widely used in various fields, and play a role in protecting driving and navigation for enterprise management and social security. The monitor is widely applied to residential houses, building villas, shopping malls and financial rooms.

In addition, in the using process, the optical filter switcher is generally used for switching the optical filters, and the infrared cut-off optical filters are used for reducing the colors in the daytime; the full-transmission optical filter works at night, so that the light inlet quantity is increased, and the night vision effect is improved.

However, in rainy days or other days where light is dark, the cut-off filter may interfere with normal shooting of the monitor.

Therefore, a magnetic-driven self-switching infrared monitor is provided to solve the above problems.

Disclosure of Invention

The invention aims to provide a magnetic-drive self-switching infrared monitor capable of automatically adjusting according to temperature, aiming at the problem that the existing monitor has poor shooting effect due to fixed infrared switching time and possibly insufficient light.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a magnetomotive type is from switching over infrared monitor, includes cylindric casing, the first half of casing installs the monitoring head, the both sides of monitoring head all are equipped with the arc piece, two form the slide of a vertical direction between the arc piece, sliding connection has infrared cut-off plate in the slide, the frame of infrared cut-off plate adopts the magnetism material, the upper portion of casing inlays and is equipped with the electro-magnet, can attract infrared cut-off plate to the top of slide under the electro-magnet on state, make infrared cut-off plate can be outside the monitoring head with outside infrared ray separation, be equipped with temperature detect switch on the casing, temperature detect switch, electro-magnet and external power source series coupling.

In foretell magnetism dynamic type auto-switch over infrared monitor, temperature detect switch is including setting up the stock solution chamber in the casing lower part, the stock solution intracavity has held mercury, the both sides in stock solution chamber all are equipped with the extension pore that upwards extends, the upper end that extends the pore is inlayed and is equipped with conductive contact, stock solution chamber, the airtight space evacuation processing that extends the pore and form.

In foretell magnetism dynamic type auto-switch over infrared monitor, temperature detect switch is including setting up the fluting on casing upper portion, fixedly connected with transparent piece in the fluting, the border of transparent piece matches with the outer border of casing, forms a complete barrel, form an kickup, curved, flat vacuum chamber between transparent piece and the fluting, the vacuum chamber splendid attire has mercury, the terminal surface inlays and is equipped with conductive contact on the vacuum chamber both sides.

Compared with the prior art, the magnetic-motion type self-switching infrared monitor has the advantages that:

1. according to the invention, by arranging the electromagnet, the temperature control switch and the infrared cut-off plate, when sunlight strongly irradiates the monitor, mercury in the temperature control switch can be rapidly expanded, so that a circuit of the electromagnet is switched on, the electromagnet is electrified and generates magnetic force, the infrared cut-off plate is attracted, the infrared cut-off plate can move to the front of the monitoring head, and strong infrared rays outside are filtered, so that the effect of improving shooting definition is achieved.

2. By arranging the transparent block and the vacuum cavity, when the mercury expands to conduct the circuit, the mercury-free optical fiber.

Drawings

FIG. 1 is a schematic diagram of a transmission state of an embodiment 1 of a magnetic-type self-switching infrared monitor provided by the present invention;

FIG. 2 is a schematic view of a magnetic-type self-switching infrared monitor according to an embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of an external structure of an embodiment 1 of a magnetic-type self-switching infrared monitor provided by the present invention;

FIG. 4 is a schematic structural diagram of an embodiment 2 of a magnetic-type self-switching infrared monitor provided by the present invention.

In the figure, a shell 1, a monitoring head 2, an arc block 3, an infrared stop plate 4, an electromagnet 5, a temperature control switch 6, a liquid storage cavity 61, an extending pore passage 62, a transparent block 63 and a vacuum cavity 64 are arranged.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1-3, a magnetic-type self-switching infrared monitor comprises a cylindrical housing 1, a monitoring head 2 is mounted on the upper half portion of the housing 1, i.e. the monitoring head 2 is disposed on the portion above the axis of the cylindrical housing 1, arc-shaped blocks 3 are disposed on both sides of the monitoring head 2, a vertical slideway is formed between the two arc-shaped blocks 3, an infrared cut-off plate 4 is slidably connected in the slideway, the frame of the infrared cut-off plate 4 is made of magnetic material, in an initial state, under the action of gravity of the infrared cut-off plate 4, the infrared cut-off plate 4 is located at the lowest side of the slideway (as shown in fig. 1), at this time, the monitoring head 2 is directly exposed to the outside, and can satisfy that the monitoring head 2 has enough light intake at night or in cloudy days, an electromagnet 5 is embedded on the upper portion of the housing 1, and the electromagnet 5 can attract the infrared cut-off plate 4 to the highest side of, the suction that 5 circular telegrams down produced infrared interception board 4 of electro-magnet is greater than the gravity of infrared interception board 4 self, make infrared interception board 4 can move to the top side of slide (as shown in fig. 2), make infrared interception board 4 can be outside monitoring head 2 with the separation of outside infrared ray, reduce the interference that outside infrared ray caused to monitoring head 2 formation of image, be equipped with temperature detect switch 6 on the casing 1, temperature detect switch 6, electro-magnet 5 and external power source series coupling, it needs to explain, external power source can adopt the same way power supply with the power supply line of monitoring head 2, reduce the wasting of resources on the one hand, reduce the construction degree of difficulty, on the other hand, also conveniently overhaul the power supply condition of monitoring head 2.

In this embodiment, the temperature control switch 6 includes a liquid storage cavity 61 disposed at a lower portion of the housing 1, mercury is contained in the liquid storage cavity 61, extending holes 62 extending upward are disposed on two sides of the liquid storage cavity 61, a conductive contact is embedded at an upper end of the extending hole 62, the two conductive contacts are respectively connected in series in a loop, and a closed loop can be formed when the two conductive contacts are conducted, a sealed space formed by the liquid storage cavity 61 and the extending hole 62 is vacuumized, and it should be noted that a transparent window (as shown in fig. 3) corresponding to the liquid storage cavity 61 is disposed on a panel of the housing 1, and can receive light in the same direction as the monitoring head 2.

In this embodiment, in the initial state, all mercury is collected in the liquid storage cavity 61 under the action of gravity, and at this time, the infrared cut-off plate 4 is also located at the lowest side of the slide way, so that the monitoring head 2 above the infrared cut-off plate is not affected; along with the gradual strong and gradual temperature rise of sunlight, on one hand, the influence of infrared rays on the monitoring head 2 is gradually increased, on the other hand, the sunlight directly irradiates mercury, so that the temperature of the mercury rises, the mercury climbs upwards along the extending pore 62 after expanding, when mercury columns at two ends are respectively contacted with the conductive contacts at two sides, the circuit of the electromagnet 5 is conducted, so that the electromagnet 5 generates magnetic force, the infrared cut-off plate 4 is attracted to move upwards to the state shown in the figure 2, the infrared cut-off plate 4 is used for cutting off external infrared rays, the influence of the infrared rays on the monitoring head 2 is reduced, and the imaging definition is improved; when the sunlight gradually disappears, the mercury temperature decreases, the loop of the electromagnet 5 is disconnected, the attraction to the infrared cut-off plate 4 is lost, and the infrared cut-off plate 4 is reset to the state shown in fig. 1 under the action of gravity.

Example 2

As shown in fig. 4, the present embodiment is different from embodiment 1 in that: the temperature control switch 6 comprises a groove arranged on the upper part of the shell 1, a transparent block 63 is fixedly connected in the groove, the edge of the transparent block 63 is matched with the outer edge of the shell 1 to form a complete cylinder, the section of the transparent block 63 is in a shuttle shape with two outward arc-shaped bulges and two sharp ends, an upward bent, arc-shaped and flat vacuum cavity 64 is formed between the transparent block 63 and the groove, mercury is contained in the vacuum cavity 64, and conductive contacts are embedded on the upper end faces of two sides of the vacuum cavity 64.

In this embodiment, when outside highlight passes transparent 63 and shines on mercury, makes its temperature rise, mercury is heated the inflation and can be spread vacuum cavity 64 and form a concave mirror, and the concave mirror has astigmatic effect on the one hand, and on the other hand, mercury itself can reflect the light, can play fine reflection of light, thermal-insulated effect, reduces outside strong sunshine and produces the influence to monitor 2 in the casing 1 to make monitor 2 can move more steadily.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a magnetomotive type auto-switch infrared monitor, includes cylindric casing (1), first portion of casing (1) installs monitoring head (2), its characterized in that, the both sides of monitoring head (2) all are equipped with arc piece (3), two form the slide of a vertical direction between arc piece (3), sliding connection has infrared cut-off board (4) in the slide, the frame of infrared cut-off board (4) adopts the magnetism material, the upper portion of casing (1) is inlayed and is equipped with electro-magnet (5), can attract infrared cut-off board (4) to the top of slide under electro-magnet (5) the on-state, make infrared cut-off board (4) can be outside monitoring head (2) with outside infrared ray separation, be equipped with temperature detect switch (6) on casing (1), temperature detect switch (6), electro-magnet (5) and external power source series coupling, temperature detect switch (6) is including setting up the fluting on casing (1) upper portion, fixedly connected with transparent piece (63) in the fluting, the border of transparent piece (63) matches with the outer border of casing (1), forms a complete barrel, form one kickup, curved, flat vacuum chamber (64) between transparent piece (63) and the fluting, contain mercury in vacuum chamber (64), vacuum chamber (64) both sides up end inlays and is equipped with conductive contact.