CN212257281U - Magnetic control reed pipe mechanism with magnetic shielding - Google Patents
Magnetic control reed pipe mechanism with magnetic shielding Download PDFInfo
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- CN212257281U CN212257281U CN202020839984.3U CN202020839984U CN212257281U CN 212257281 U CN212257281 U CN 212257281U CN 202020839984 U CN202020839984 U CN 202020839984U CN 212257281 U CN212257281 U CN 212257281U
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Abstract
The utility model provides a magnetic control dry reed pipe mechanism with magnetic shielding, which comprises a magnetic control dry reed pipe switch and a magnetic shielding sheet; the magnetic control reed switch comprises a reed switch and a magnet, wherein the magnetic shielding sheet is a magnetic conductive material sheet with the thickness of more than or equal to 0.5 mm. The utility model discloses a set up the magnetic screen piece, select the magnetic screen piece size thickness to make to have weak magnetic shielding effect controllable, so utilize the magnetic screen piece to weaken magnetic field intensity of self of magnetic control tongue tube switch in the bottom direction, and then reduce magnetic field intensity and to the external influence, reduce the requirement of magnetic control tongue tube switch to former device material parameter discreteness such as its base material and its mounting base, the product manufacturing cost and the installation cost of indirectness reduction; the requirements on the installation conditions of the device are reduced, and the device can be used and popularized in various environments.
Description
Technical Field
The utility model relates to a magnetic control subassembly especially relates to a take magnetic screen magnetic control tongue tube mechanism.
Background
The reed switch is often used as a sensor and widely applied to elevator doors, sliding safety doors, places with severe electromagnetic environment, flammable and explosive places and the like. The principle of the magnetic field switch is that a static magnetic field acts on a reed switch and is matched with a movable execution block (magnet) to realize the opening and closing of the switch, and the magnetic field switch is simple and easy to operate, small in size, free of power supply and zero in power consumption. The switch has the advantages of resistance to external high-frequency electromagnetic field interference, no high-frequency electromagnetic field interference to the outside and good EMC electromagnetic compatibility.
The inventor finds that the magnetic control reed switch in the prior art has the following problems through research:
(1) the requirement on the discreteness of the parameters of the base material of the magnetic control reed switch and the original devices such as the mounting base of the magnetic control reed switch is high, and the product cost and the mounting cost are increased indirectly.
(2) In order to avoid mutual interference caused by the magnetic field attached to the product and the external magnetic field, the product mounting base needs to be made of specific materials, so that the product has certain mounting conditions, and the product is not beneficial to use and popularization under various different environments.
Therefore, the inventor provides a novel magnetic control reed switch through research and development, and the requirements of products on the installation conditions of the magnetic control reed switch can be further reduced through the structural improvement of the magnetic control reed switch.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a take magnetic screen magnetic control tongue tube mechanism to magnetic control tongue tube switch structure improved design, realizes weakening the peripheral magnetic field intensity of magnet.
The technical scheme content of the utility model is as follows:
a magnetic control dry reed pipe mechanism with magnetic shielding comprises a magnetic control dry reed pipe switch and a magnetic shielding sheet; the magnetic control reed switch comprises a reed switch and a magnet, wherein the magnetic shielding sheet is a magnetic conductive material sheet with the thickness of more than or equal to 0.5 mm.
The magnetic control reed switch mechanism with the magnetic shield further comprises a shell and a base; the casing is a rectangular groove, fixing holes are formed in two sides of the groove in the width direction, wiring holes are formed in one side of the groove, a mounting hole is formed in the bottom of the groove, and the groove opening of the casing is fixed to the base through the fixing holes.
Furthermore, the magnetic control reed switch is arranged at the bottom of the groove; the reed switch comprises a magnetic control reed switch, a magnet and a reed strip, wherein the reed switch is arranged in the groove, the magnetic control reed switch is arranged in the groove, the position of the reed switch is arranged in the groove, the distance between the magnet and the reed strip is larger than or equal to 0.1mm, and the magnet is fixed in the middle of the groove in the length direction.
Furthermore, a magnetic shielding sheet is arranged between the magnetic control reed switch and the base, the magnetic shielding sheets are respectively parallel to the magnetic control reed switch and the base, and the magnetic shielding sheets are arranged at the middle point of the groove in the length direction.
Furthermore, the edge of the magnetic shielding sheet is fixed on the inner wall at the midpoint of the groove between the reed pipe and the base in the length direction.
Furthermore, the magnetic shield is fixed on one side of the magnet close to the base, and the magnetic shield piece is connected across the edges of the two polar polarization surfaces of the magnet.
Furthermore, the magnetic control reed switch mechanism with the magnetic shielding also comprises an indicator light device; the indicating lamp device comprises an indicating lamp, a control reed pipe and a lead.
Furthermore, the indicator light is fixed through the mounting hole, the control reed switch is positioned between the reed switch of the magnetic control reed switch and the base and is parallel to the reed switch, and the control reed switch and the reed switch are both connected to an external power supply loop through leads.
Further, the magnetic conductive material sheet is selected from any one of an electrical pure iron sheet, a low-carbon steel sheet, an iron-aluminum alloy sheet, an iron-silicon alloy sheet, an iron-nickel alloy sheet and an iron-cobalt alloy sheet.
The utility model discloses has following technological effect:
1. the utility model discloses the utilization is to the institutional advancement of magnetic control tongue tube switch, increases the magnetic screen piece, utilizes the magnetic screen piece to weaken magnetic control tongue tube switch's self magnetic field intensity, and then reduces magnetic field intensity to external influence, reduces the requirement of magnetic control tongue tube switch to former device material parameter discreteness such as its base material and its mounting base, the reduction product manufacturing cost and the installation cost of indirectness.
2. The utility model discloses an increase the magnetism shielding piece, reduce the requirement to its installation condition, can make the product use under various different environment and promote.
3. The utility model discloses the magnetic shielding piece of utilization has that the volume is small, characteristics such as thickness is thin for the product realizes easily in the equipment production process, can realize that mass production and cost are lower.
Drawings
FIG. 1 is a schematic diagram of the external structure of the product of the present invention;
FIG. 2 is a view showing the structure of the inner part of the casing of the present invention;
FIG. 3 is a schematic view of an embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of the present invention;
FIG. 5 is a schematic diagram of an indicator light control circuit of the present invention;
fig. 6 is a schematic circuit diagram of the present invention.
Reference numerals:
1-magnetic control reed switch; 2-magnetic shield pieces; 3-a reed pipe; 4-a magnet; 5-a shell; 6-a base; 7-a groove; 8-a fixation hole;
9-wiring holes; 10-mounting holes; 11-housing slot; 12-corner groove; 13-an indicator light; 14-control reed pipe; 15-conducting wire.
Detailed Description
To further explain the technical solution of the present invention, the following description will be made with reference to the accompanying drawings. Meanwhile, it should be noted that the technical contents and technical features of the present invention can be used in combination without conflict.
The reed switch is also called a reed switch in the invention, and the control reed switch and the reed switch are called the reed switch for distinguishing the product of the invention.
In an embodiment of the present invention, as shown in fig. 2 and fig. 3, a magnetically controlled dry reed switch mechanism with magnetic shielding comprises a magnetically controlled dry reed switch 1 and a magnetic shielding sheet 2; the magnetic control reed switch 1 comprises a reed switch 3 and a magnet 4, and the magnetic shielding sheet 2 is a magnetic conductive material sheet with the thickness of more than or equal to 0.5 mm. In the embodiment, the magnetic shielding piece is additionally arranged, and the size and the thickness of the magnetic shielding piece are selected to enable the weak magnetic shielding effect to be controllable, so that the magnetic shielding piece is utilized to weaken the magnetic field intensity of the magnetic control reed switch in the bottom direction, the influence of the magnetic field intensity on the outside is further reduced, the requirement of the magnetic control reed switch on the discreteness of the parameters of the original devices such as the base material and the mounting base of the magnetic control reed switch is reduced, and the production cost and the mounting cost of the product are indirectly reduced; the requirements on the installation conditions of the product are reduced, and the product can be used and popularized in various environments; meanwhile, the magnetic shielding sheet has the characteristics of small volume, thin thickness and the like, so that the product is easy to realize in the assembly production process, the mass production can be realized, and the cost is lower.
In an embodiment of the present invention, as shown in fig. 1, the magnetically controlled reed switch mechanism with magnetic shielding further includes a housing 5 and a base 6; the casing 5 is provided with a rectangular groove 7, fixing holes 8 are formed in two sides of the groove in the width direction, wiring holes 9 are formed in one side of the groove, a mounting hole 10 is formed in the bottom of the groove 7, and the casing notch 11 is fixed on the base 6 through the fixing holes 8. In this embodiment, through the setting of casing and base, can protect the utility model discloses the inner member of product, the design of fixed orifices, mounting hole and connecting hole can make the product fast convenient in equipment and installation, provides efficiency.
In an embodiment of the present invention, as shown in fig. 2, the magnetically controlled reed switch 1 is installed at the bottom of the groove 7; the reed switch 1 is characterized in that a reed switch 3 of the magnetic control reed switch 1 is fixed at the position of an angle groove 12 on one side of a groove 7 in the length direction and is positioned at the midpoint of the position of the angle groove 12, a magnet 4 and the reed switch 3 are installed at a distance of more than or equal to 0.1mm, and the magnet 4 is fixed at the midpoint of the groove 7 in the length direction. In the embodiment, the safety performance of the product is improved by installing the magnetic control reed switch, and the reed switch and the magnet are installed at a certain distance, so that the reed switch is prevented from being tightly attached to the reed switch without gaps, and the installation, the change, the adjustment and the like of equipment elements are not facilitated; the magnet and the reed switch are arranged in a clearance way, so that the product is more stable, reliable and safe in application; the reed switch and the magnet are installed by selecting the middle point in the length direction, so that the product is made, the switching point of the product in matching with other equipment (execution block magnet) of a system to switch the state is kept at the middle point in the length direction of the product, and the product is convenient to produce and operate in the mass production process and has controllability in product inspection.
In an embodiment of the present invention, as shown in fig. 1, fig. 3 and fig. 4, the magnetic control reed switch 1 and the base 6 are provided with the magnetic shielding sheet 2 therebetween, the magnetic shielding sheet 2 is parallel to both, and the magnetic shielding sheet 2 is installed at the midpoint of the length direction of the groove 7. In the embodiment, by designing the installation position of the magnetic shielding sheet, the magnetic shielding sheet has a shielding effect to a certain degree on the magnetic field intensity in the direction of the base; the magnetic field intensity in the direction is weakened, so that the requirement of a product on a mounting base is reduced.
In an embodiment of the present invention, as shown in fig. 1 and 4, the edge of the magnetic shielding plate 2 is fixed to the inner wall of the middle point of the length direction of the groove 7 between the reed pipe 3 and the base 6. In the present embodiment, by disposing the magnetic shielding sheet between the reed pipe and the base, the magnetic field strength is partially weakened; thereby reducing the requirement of the product on the discreteness of the material parameters of the original device.
In an embodiment of the present invention, as shown in fig. 1 and 3, the magnetic shielding sheet 2 is fixed on one side of the base 6 near the magnet 4, and the magnetic shielding sheet 2 is bridged over the edge of the two polar polarization surfaces of the magnet 4. In the embodiment, the magnetic shielding piece is directly bridged above one side of the magnet close to the base, so that a certain isolation effect is achieved between the magnet and the base, and particularly, the shielding effect is weakened on the magnetic field intensity of the magnet on one side of the base; and then reduce the product and to base material parameter discreteness requirement, also greatly reduce the requirement to mounting base or installation environment simultaneously.
In an embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 3, the magnetically controlled reed switch mechanism with magnetic shielding further includes an indicator light device; the indicator light device comprises an indicator light 13, a control reed pipe 14 and a lead 15. In the embodiment, the indication can be given when the state of the magnetic control reed switch is switched by the arrangement of the indicator light device; the device utilizes the action of magnetic field force in the same direction with the magnetic control reed switch to further promote the consistent state switching and the switching time point of the magnetic control reed switch and the control reed switch.
In an embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the indicator light 13 is fixed through the mounting hole 10, the control reed switch 14 is located between the reed switch 3 of the magnetic control reed switch 1 and the base 6, and is parallel to the reed switch 3, and the control reed switch 14 and the reed switch 3 are connected to an external power supply loop through a wire 15. In the embodiment, the indicator light device, the magnetic control reed switch and the external power supply are connected to cause the product to form a current loop after the switch is closed, and the circuit diagram is shown in fig. 5 and fig. 6.
In an embodiment of the present invention, the magnetic conductive material sheet is selected from any one of an electrical pure iron sheet, a low carbon steel sheet, an iron-aluminum alloy sheet, an iron-silicon alloy sheet, an iron-nickel alloy sheet, and an iron-cobalt alloy sheet. In this embodiment, the magnetic shielding sheet can be used by using any of the above magnetic conductive material sheets; for example, the electrician pure iron sheet in the above materials also has the advantage of not generating remanence.
In order to explain the technical solution of the present invention in more detail, the following further explains the technical solution in combination with the implementation and application.
Example 1
With reference to the attached drawings, fig. 2 and fig. 4, a magnetic control reed switch mechanism with magnetic shielding comprises a magnetic control reed switch 1 and a magnetic shielding sheet 2; the magnetic control reed switch 1 comprises a reed switch 3 and a magnet 4, and the magnetic shielding sheet 2 is a magnetic conductive material sheet with the thickness of 1 mm.
A magnetic control reed switch mechanism with magnetic shielding further comprises a shell 5 and a base 6; wherein, casing 5 takes rectangle recess 7, and cell body width direction both sides have fixed orifices 8, and cell body one side has wiring hole 9, and recess 7 bottom is equipped with a mounting hole 10 to fix casing notch 11 in base 6 through fixed orifices 8. The magnetic control reed switch 1 is arranged at the bottom of the groove 7; the reed switch 1 is characterized in that a reed switch 3 of the magnetic control reed switch 1 is fixed at the position of an angle groove 12 on one side of a groove 7 in the length direction and is positioned at the midpoint of the position of the angle groove 12, a magnet 4 and the reed switch 3 are arranged at a distance of more than or equal to 0.1mm, and the magnet 4 is fixed at the midpoint of the groove 7 in the length direction.
A magnetic shielding sheet 2 is arranged between the magnetic control reed switch 1 and the base 6, the magnetic shielding sheets 2 are respectively parallel to the magnetic control reed switch 1 and the base, and the magnetic shielding sheets 2 are arranged at the middle points of the length directions of the installation grooves 7.
The edge of the magnetic shielding sheet 2 is fixed on the inner wall of the middle point of the groove 7 between the reed pipe 3 and the base 6 in the length direction.
The magnetic control reed switch mechanism with the magnetic shielding function further comprises an indicator light device; the indicator light device comprises an indicator light 13, a control reed pipe 14 and a lead 15. The indicator light 13 is fixed through the mounting hole 10, the control reed pipe 14 is positioned between the reed pipe 3 and the base 6 of the magnetic control reed pipe switch 1 and is parallel to the reed pipe 3, the control reed pipe 14 and the reed pipe 3 are both connected to an external power supply loop through a lead 15, and the specific circuit schematic diagram is shown in attached figures 5 and 6.
The magnetic conductive material sheet is a circular sheet made of iron-nickel alloy sheets.
The product A is assembled by the product components, the magnetic field intensity is provided for the reed pipe 3 and the control reed pipe 14 by the magnet 4, and when the magnet is matched with external equipment (execution block magnet) to slide, the magnetic field is generated to enable the reed pipe 3 and the control reed pipe 14 to be attracted or disconnected in a consistent manner. When the reed switch 3 and the control reed switch 14 are attracted, the product A is connected with an external power supply through a lead at the moment to form a current loop, and meanwhile, the indicator light 13 is lightened; when the reed switch 14 is controlled to be turned off, the indicator lamp 13 is turned off.
Example 2
With reference to the attached drawings, fig. 2 and fig. 3, a magnetic control reed switch mechanism with magnetic shielding comprises a magnetic control reed switch 1 and a magnetic shielding sheet 2; the magnetic control reed switch 1 comprises a reed switch 3 and a magnet 4, and the magnetic shielding sheet 2 is a magnetic conductive material sheet with the thickness of 0.5 mm.
A magnetic control reed switch mechanism with magnetic shielding further comprises a shell 5 and a base 6; wherein, casing 5 takes rectangle recess 7, and cell body width direction both sides have fixed orifices 8, and cell body one side has wiring hole 9, and recess 7 bottom is equipped with a mounting hole 10 to fix casing notch 11 in base 6 through fixed orifices 8.
The magnetic control reed switch 1 is arranged at the bottom of the groove 7; the reed switch 1 is characterized in that a reed switch 3 of the magnetic control reed switch 1 is fixed at the position of an angle groove 12 on one side of the groove 7 in the length direction and is positioned at the midpoint of the position of the angle groove 12, a magnet 4 of the magnetic control reed switch 1 is arranged at a distance of not less than 0.1mm from the reed switch 3, and the magnet 4 is fixed at the midpoint of the groove 7 in the length direction.
A magnetic shielding sheet 2 is arranged between the magnetic control reed switch 1 and the base 6, the magnetic shielding sheets 2 are respectively parallel to the magnetic control reed switch 1 and the base, and the magnetic shielding sheets 2 are arranged at the middle points of the length directions of the installation grooves 7.
The magnetic shield piece 2 is fixed on the side of the magnet 4 close to the base 6, and the magnetic shield piece 2 bridges the edges of the two polar planes of the magnet 4.
The magnetic control reed switch mechanism with the magnetic shielding function further comprises an indicator light device; the indicator light device comprises an indicator light 13, a control reed pipe 14 and a lead 15. The indicator light 13 is fixed through the mounting hole 10, the control reed pipe 14 is positioned between the reed pipe 3 and the base 6 of the magnetic control reed pipe switch 1 and is parallel to the reed pipe 3, the control reed pipe 14 and the reed pipe 3 are both connected to an external power supply loop through a lead 15, and the specific circuit schematic diagram is shown in attached figures 5 and 6.
The magnetic conductive material sheet adopts a square electrician pure iron sheet which has the characteristic of no remanence generation as a magnetic shielding sheet and can better shield the magnetic field of a product.
And assembling the product B through the product components, and removing the electrician pure iron sheet from the product B to obtain a product C. Product B and product C were measured using TD8620 tesla with the following parameters:
| name of item | Test conditions | Magnetic field intensity near the same position on one side of the base |
| Product B (with magnetic shielding sheet) | At a distance of 2mm from the magnet | -77.4 Gauss |
| Product C | At a distance of 2mm from the magnet | 123.7 Gauss |
According to the test data in the table, can know, the design of magnetism shielding piece can shield magnetic field intensity under the condition that does not change the magnetic field direction, weakens the magnetic field intensity that is close to base one side, and then reduces magnetic field intensity to the base, mounting base's influence even, reduces and requires former device material parameter discreteness.
Claims (9)
1. The utility model provides a take magnetic shield magnetic control tongue tube mechanism which characterized in that: comprises a magnetic control reed switch and a magnetic shielding sheet; the magnetic control reed switch comprises a reed switch and a magnet, wherein the magnetic shielding sheet is a magnetic conductive material sheet with the thickness of more than or equal to 0.5 mm.
2. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 1, wherein: the magnetic control reed switch mechanism with the magnetic shield further comprises a shell and a base; the casing is a rectangular groove, fixing holes are formed in two sides of the groove in the width direction, wiring holes are formed in one side of the groove, a mounting hole is formed in the bottom of the groove, and the groove opening of the casing is fixed to the base through the fixing holes.
3. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 2, wherein: the magnetic control reed switch is arranged at the bottom of the groove; the reed switch comprises a magnetic control reed switch, a magnet and a reed strip, wherein the reed switch is arranged in the groove, the magnetic control reed switch is arranged in the groove, the position of the reed switch is arranged in the groove, the distance between the magnet and the reed strip is larger than or equal to 0.1mm, and the magnet is fixed in the middle of the groove in the length direction.
4. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 3, wherein: and a magnetic shielding sheet is arranged between the magnetic control reed switch and the base, the magnetic shielding sheets are respectively parallel to the magnetic control reed switch and the base, and the magnetic shielding sheets are arranged at the middle point of the groove in the length direction.
5. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 4, wherein: the edge of the magnetic shielding sheet is fixed on the inner wall at the midpoint of the groove between the reed pipe and the base in the length direction.
6. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 4, wherein: the magnetic shielding piece is fixed on one side of the magnet close to the base, and the magnetic shielding piece is connected with the edges of two polar polarization surfaces of the magnet in a bridging mode.
7. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 5 or 6, wherein: the magnetic control reed switch mechanism with the magnetic shielding also comprises an indicator light device; the indicating lamp device comprises an indicating lamp, a control reed pipe and a lead.
8. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 7, wherein: the indicating lamp is fixed through the mounting hole, the control reed switch is positioned between the reed switch of the magnetic control reed switch and the base and is parallel to the reed switch, and the control reed switch and the reed switch are both connected to an external power supply loop through leads.
9. The magnetically-controlled reed switch mechanism with magnetic shielding according to claim 1, wherein: the magnetic conductive material sheet is selected from any one of an electrical pure iron sheet, a low-carbon steel sheet, an iron-aluminum alloy sheet, an iron-silicon alloy sheet, an iron-nickel alloy sheet and an iron-cobalt alloy sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020839984.3U CN212257281U (en) | 2020-05-19 | 2020-05-19 | Magnetic control reed pipe mechanism with magnetic shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020839984.3U CN212257281U (en) | 2020-05-19 | 2020-05-19 | Magnetic control reed pipe mechanism with magnetic shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212257281U true CN212257281U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020839984.3U Active CN212257281U (en) | 2020-05-19 | 2020-05-19 | Magnetic control reed pipe mechanism with magnetic shielding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212257281U (en) |
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2020
- 2020-05-19 CN CN202020839984.3U patent/CN212257281U/en active Active
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