Two-way sensor

Abstract

The utility model relates to a double-path magnetoelectric sensor, which comprises a sensor main body, the sensor main body comprises a packaging body shell internally provided with a thermal insulation cavity, the lower end of the packaging body shell is provided with a bottom plate, the bottom plate is detachably assembled at the lower end of the packaging body shell through a locking piece, the packaging body shell is internally provided with a magnetic steel assembly, and the magnetic steel assembly is detachably assembled at the lower end of the packaging body shell through a locking piece. The magnetic steel assembly is arranged in the cavity, and the inner cavity layer and the bottom layer are respectively arranged on the inner wall of the cavity and the upper end of the bottom plate, so that when the bottom plate is assembled on the packaging body shell, the inner cavity layer and the bottom layer are arranged on the inner wall of the cavity and the upper end of the bottom plate; the external temperature can be effectively isolated, so that the situation that the magnetic field of the magnetic steel assembly is affected or even demagnetized when the magnetic steel assembly works at high temperature due to the fact that the external temperature is too high is avoided, and the working stability of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sensors, in particular to a double-path sensor. BACKGROUND

[0002] The magneto-electric sensor is a kind of sensor that converts the input motion speed into an induced electromotive force in a coil by using the principle of electromagnetic induction, and directly converts the mechanical energy of a measured object into an electrical signal output.

[0003] The magnetic steel generally refers to an aluminum-nickel-cobalt alloy, and the magnetic steel is composed of several hard strong metals, such as iron, aluminum, nickel, cobalt and the like, and sometimes copper, niobium and tantalum, and is used for manufacturing super-hard permanent magnetic alloy.

[0004] The existing magneto-electric sensor generally contains a magnetic steel, and the sensitivity of the sensor itself is greatly dependent on the magnetic field change generated by the magnetic steel. The placement angle of the magnetic steel and the working environment temperature of the magnetic steel can all affect the strength and distribution of the magnetic field. The working temperature required by the magnetic steel is different due to the difference in the material of the magnetic steel. The working temperature of the magnetic steel on the market is generally between 80 DEG and 150 DEG. In some special working environments (such as a steelmaking production line), the magnetic field of the magneto-electric sensor is easily affected by the temperature, so that the sensor detection is not sensitive or even fails. SUMMARY

[0005] The application provides a double-path sensor, which can solve the problem that the existing magneto-electric sensor is greatly affected by the magnetic field in a high-temperature environment.

[0006] The technical scheme of the application is as follows: a double-path sensor, comprising:

[0007] A sensor main body, wherein the sensor main body comprises:

[0008] A packaging body shell provided with a temperature insulation cavity, wherein the lower end of the packaging body shell is provided with a bottom plate, the bottom plate is detachably assembled to the lower end of the packaging body shell through a locking piece, and the packaging body shell (11) is internally provided with a magnetic steel assembly;

[0009] A temperature insulation layer, wherein the temperature insulation layer comprises an inner cavity layer and a bottom layer, the inner cavity layer is assembled to the inner wall of the packaging body shell and is matched with the shape of the inner wall of the packaging body shell, and the bottom layer is assembled to the upper end of the bottom plate, and the inner cavity layer and the bottom layer form the temperature insulation cavity and are used for insulating the outside temperature;

[0010] A monitoring assembly, wherein the monitoring assembly is arranged in the temperature insulation cavity and is used for monitoring the temperature in the temperature insulation cavity in real time.

[0011] By adopting the above scheme, the magnetic steel assembly is arranged in the temperature insulation cavity, and the inner cavity layer and the bottom layer are arranged on the inner wall and the upper end of the bottom plate of the temperature insulation cavity, so that when the bottom plate is assembled on the packaging body shell, the external temperature can be effectively insulated, thereby avoiding the situation that the magnetic field of the magnetic steel assembly is affected or demagnetized due to high external temperature under high-temperature working, and the working stability of the device is improved.

[0012] In an embodiment of the present application, a connecting plate is fixedly arranged below the bottom plate, the projection area of the lower end of the packaging body shell on the connecting plate is equal to the surface area of the connecting plate itself, and the connecting strips extending in the front-rear direction are arranged on the left and right sides of the upper end of the connecting plate.

[0013] In an embodiment of the present application, the locking member comprises:

[0014] The clamping block is arranged in the strip-shaped sliding groove on the rear wall of the packaging body shell, and the clamping groove for clamping the lower end of the clamping block is arranged on the upper surface of the bottom plate.

[0015] The elastic member is arranged between the upper end of the clamping block and the inner wall of the upper end of the strip-shaped sliding groove.

[0016] In an embodiment of the present application, the elastic member is a spring or a spring piece, and the two ends of the elastic member are respectively connected and fixed with the upper end of the clamping block and the inner wall of the upper end of the strip-shaped sliding groove.

[0017] By adopting the above scheme, the connecting plate capable of sliding in the front-rear direction is arranged, so that when the device needs to be disassembled and recycled, the inconvenience of screw fixation in the conventional design is avoided, and the device bottom plate and the connecting plate can be quickly disassembled by using the convenient locking member, thereby improving the convenience of disassembly, recycling or later maintenance of the device.

[0018] In an embodiment of the present application, a gasket is further arranged on the lower end of the connecting plate.

[0019] By adopting the above scheme, the gasket is arranged on the lower end of the connecting plate, so that when the device is assembled and works, the gasket on the lower end of the connecting plate can be deformed according to the concave-convex condition of the mounting surface, thereby avoiding the situation that the angle of the internal magnetic steel is not accurate enough due to the uneven mounting surface and the inclined placement angle of the device, and further affecting the magnetic field distribution.

[0020] In an embodiment of the present application, the temperature insulation layer and the gasket are both silica gel members.

[0021] By adopting the above scheme, the temperature insulation layer adopting the silica gel material can effectively insulate the influence of external temperature on the magnetic steel assembly itself without affecting the magnetic field distribution of the internal magnetic steel assembly, and meanwhile, the gasket adopting the silica gel material can further insulate the heat conduction between the mounting surface and the connecting plate while stably mounting the device.

[0022] In one embodiment of the present application, the monitoring assembly comprises a temperature sensing probe and an LED lamp, the temperature sensing probe is arranged in the inner wall of the temperature insulation cavity, the LED lamp is embedded on the packaging body shell, and the temperature sensing probe is electrically connected with the LED lamp.

[0023] By adopting the temperature sensing probe and the LED lamp, when the temperature inside the device exceeds the working threshold, the temperature sensing probe senses the temperature inside the temperature insulation cavity and converts the temperature signal into an electric signal to make the LED lamp flicker to remind the staff to disassemble and maintain.

[0024] In one embodiment of the present application, the magnetic steel assembly comprises two magnetic steels, and the two magnetic steels are arranged in the inside of the temperature insulation cavity in the left-right direction and are fixedly connected with the inner wall of the temperature insulation cavity.

[0025] By arranging two magnetic steel assemblies inside the device, the two magnetic steel assemblies are mutually inducted and matched to enable the device to determine the running direction and speed of the detected object.

[0026] In one embodiment of the present application, mounting holes are formed in the left and right sides of the packaging body shell, the gasket and the connecting plate.

[0027] In one embodiment of the present application, an external power supply is further included, and the temperature sensing probe and the LED lamp are electrically connected with the external power supply.

[0028] By adopting the above technical scheme, the external power supply is arranged outside the packaging body shell to avoid the temperature rise of the external power supply itself affecting the temperature inside the temperature insulation cavity.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. By adopting the temperature insulation layer to insulate the temperature insulation cavity with the external temperature, the influence of high temperature on the distribution and strength of the magnetic field inside the device in a special working environment is avoided, the stable insulation effect of the device is improved, and the working stability is improved.

[0031] 2. By adopting the connecting plate capable of sliding below the temperature insulation cavity, the locking member capable of simply disassembling the device is used to make the device more convenient to disassemble, recycle or disassemble and maintain.

[0032] 3. By adopting the gasket, the gasket can be deformed according to the concave-convex condition of the installation surface when the device is installed, so that the whole device is more stable during installation, and the gasket also adopts a component of silica gel material, which can help the device to further isolate the external temperature.

[0033] 4. By adopting the LED lamp and the temperature sensing probe, the device can detect the working temperature inside the temperature insulation cavity in real time when working, and the LED lamp flashes when the working temperature exceeds the threshold value, reminding the staff to maintain, so that the working state of the device can be effectively monitored.

[0034] 5. By adopting the magnetic steel assembly composed of two magnetic steels, the advancing direction of the object to be detected can be determined by the front and rear sequence of the magnetic steel induction trigger, and the moving speed of the object to be detected can be determined by calculating the time interval of the two magnetic steel induction triggers, thereby improving the use effect of the device. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a front view of a dual-path sensor provided in the embodiments of the present application;

[0036] Figure 2 is a cross-sectional view of a dual-path sensor provided in the embodiments of the present application;

[0037] Figure 3 is a front view of a connecting plate of a dual-path sensor provided in the embodiments of the present application;

[0038] Figure 4 is a front view of a magnetic steel of a dual-path sensor provided in the embodiments of the present application.

[0039] Explanation of reference signs: 1, sensor main body; 11, encapsulation shell; 110, locking piece; 111, strip-shaped sliding groove; 112, clamping block; 113, elastic piece; 12, magnetic steel assembly; 121, magnetic steel; 13, bottom plate; 2, temperature insulation layer; 21, inner cavity layer; 22, bottom layer; 31, connecting plate; 32, connecting strip; 4, monitoring assembly; 41, LED lamp; 42, temperature sensing probe; 5, gasket; 6, mounting hole. DETAILED DESCRIPTION

[0040] The following will be described in detail in combination with the accompanying Figures 1-3 The dual-path sensor provided by the present application is further described in detail.

[0041] Please refer to Figures 1-3 A dual-path sensor provided by the first embodiment of the present application comprises: a sensor main body 1, an encapsulation shell 11 with a temperature insulation cavity inside, a temperature insulation layer 2, and a monitoring assembly 4.

[0042] The sensor body 1 comprises:

[0043] The packaging shell 11 is internally provided with a temperature insulation cavity, and the lower end of the packaging shell 11 is provided with a bottom plate 13 which is detachably assembled to the lower end of the packaging shell 11 through a locking piece 110.

[0044] The temperature insulation layer 2 comprises an inner cavity layer 21 and a bottom layer 22, the inner cavity layer 21 is assembled to the inner wall of the temperature insulation cavity and is consistent with the shape of the inner wall of the temperature insulation cavity, and the bottom layer 22 is assembled to the upper end of the bottom plate 13.

[0045] The monitoring assembly 4 is arranged inside the temperature insulation cavity and is used for monitoring the temperature inside the temperature insulation cavity in real time.

[0046] In the embodiment, a control module and a power supply module are further included, and the control module and the power supply module are electrically connected with the monitoring assembly 4, and the specific connection mode is the same as the conventional connection mode of the existing magneto-electric sensor, and thus will not be described herein.

[0047] The bottom plate 13 is fixedly assembled with a connecting plate 31, the projection area of the lower end of the packaging shell 11 on the connecting plate 31 is equal to the surface area of the connecting plate 31 itself, the upper end of the connecting plate 31 is provided with connecting strips 32 extending in the front-rear direction on the left and right sides, and the connecting strips 32 are slidingly assembled to the left and right sides of the lower end of the packaging shell 11.

[0048] In the embodiment, when the connecting plate 31 is assembled below the packaging shell, the bottom layer 22 above the bottom plate 13 can be in interference fit with the lower end surface of the inner cavity layer 21 to press each other, so as to improve the sealing performance and heat insulation performance of the temperature insulation cavity.

[0049] The locking piece 110 comprises:

[0050] A clamping block 112 is arranged on the rear wall of the packaging shell 11 and extends along the up-down direction, the clamping block 112 is slidably arranged in the strip-shaped sliding groove 111, and a clamping groove is arranged on the upper surface of the bottom plate 13 and used for clamping the lower end of the clamping block 112.

[0051] An elastic member 113 is arranged between the upper end of the clamping block 112 and the inner wall of the upper end of the strip-shaped sliding groove 111, when the connecting plate 31 needs to be fixed by the locking member 110, the connecting plate 31 can only move along the front-rear direction of the device under the limiting action of the connecting strip 32, when the locking is performed, the clamping block 112 is inserted into the clamping groove on the connecting plate 31, thereby limiting the movement of the connecting plate 31 in the front-rear direction, and the assembly stability of the connecting plate 31 is improved.

[0052] The elastic member 113 is a spring or a spring piece, and the two ends of the elastic member 113 are respectively connected and fixed to the upper end of the clamping block 112 and the inner wall of the upper end of the strip-shaped sliding groove 111, wherein the elastic member 113 is always in a compressed state, and the elastic member 113 always generates a downward pressure on the clamping block 112 during the process that the clamping block 112 is inserted into the clamping groove and clamped, thereby improving the clamping stability of the clamping block 112 assembled in the clamping groove.

[0053] In the embodiment, a rubber layer that is attached to the inner wall of the clamping groove can also be arranged on the inner wall of the clamping groove, so as to increase the stability when the clamping block 112 and the clamping groove are clamped.

[0054] The device also comprises a gasket 5, and the gasket 5 is arranged at the lower end of the connecting plate 31.

[0055] The temperature insulation layer 2 and the gasket 5 are both silica gel members, the gasket 5 made of silica gel material can be deformed according to the concave-convex condition of the installation surface when the device is installed on the installation surface, thereby improving the installation stability.

[0056] In the embodiment, the gasket 5 can also be a member made of rubber material, which has good heat resistance and can be deformed according to the concave-convex condition of the installation surface.

[0057] The monitoring assembly 4 comprises a temperature sensing probe 42 and an LED lamp 41, the temperature sensing probe 42 is arranged in the inner wall of the temperature insulation cavity, the LED lamp 41 is embedded on the packaging shell 11, and the temperature sensing probe 42 is electrically connected with the LED lamp 41, when the temperature inside the temperature insulation cavity exceeds a threshold value (i.e. the upper limit of the normal working temperature of the magnet steel assembly 12), the temperature sensing probe 42 senses the working temperature inside the temperature insulation cavity and transmits a signal to the LED lamp 41, and the LED lamp 41 flashes to remind the staff to work.

[0058] In the embodiment, the temperature sensing probe 42 can be a temperature sensing probe of model HX-RS.

[0059] The magnetic steel assembly 12 comprises two magnetic steels 121, which are arranged in the left-right direction at intervals in the interior of the temperature insulation cavity and are fixedly connected with the inner wall of the temperature insulation cavity. By arranging the two magnetic steels 121 at intervals, the magnetic steels 121 can respectively induct the object to be measured, so that the running direction and the running speed of the object can be measured.

[0060] The temperature sensing probe 42 and the LED lamp 41 are electrically connected with the external power supply. The external power supply, the power supply module and the processing module are arranged in the control bin, which is arranged outside the packaging body shell 11. The external power supply, the power supply module and the processing module are electrically connected with the temperature sensing probe 42 and the LED lamp 41 through wires.

[0061] In the embodiment, the magnetic steel 121 can be a permanent magnet or an electromagnet according to actual industrial control requirements. When the magnetic steel assembly 12 is a permanent magnet, the magnetic steel assembly 12 is not electrically connected with the power supply module and the control module. When the magnetic steel assembly 12 is an electromagnet, the magnetic steel assembly 12 is electrically connected with the power supply module and the control module.

[0062] The left and right sides of the packaging body shell 11, the gasket 5 and the connecting plate 31 are provided with mounting holes 6. By inserting bolts or screws into the mounting holes 6, the device can be fixed on the preset equipment

[0063] The temperature sensing probe 42 and the LED lamp 41 are electrically connected with the external power supply. The controller is electrically connected with the external power supply, and is used for controlling the working operation of the temperature sensing probe 42 and the LED lamp 41. The specific electrical connection mode between the external power supply and the controller, the temperature sensing probe 42 and the LED lamp 41 is an existing conventional technical means, so it is not repeated here.

[0064] The above are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A two-path sensor, characterized by, The utility model relates to a temperature monitoring sensor, including: Sensor body (1), the sensor body (1) includes: The encapsulation shell (11) is internally provided with temperature insulation cavity, the lower end of encapsulation shell (11) is provided with bottom plate (13), bottom plate (13) is detachably assembled in the lower end of encapsulation shell (11) through locking piece (110), and the inside of encapsulation shell (11) is provided with magnetic steel assembly (12); Temperature insulation layer (2), the temperature insulation layer (2) includes inner cavity layer (21) and bottom layer (22), the inner cavity layer (21) is assembled on the inner wall of encapsulation shell (11) and is consistent with the shape of the inner wall of encapsulation shell (11), and the bottom layer (22) is assembled on the upper end of bottom plate (13), and the inner cavity layer (21) and bottom layer (22) are enclosed to form the temperature insulation cavity for isolating external temperature; Monitoring assembly (4), the monitoring assembly (4) is arranged in the inside of temperature insulation cavity, is used for real-time monitoring temperature inside temperature insulation cavity.

2. A two-way sensor according to claim 1, characterized in that: The lower end of bottom plate (13) is fixedly assembled with connecting plate (31), the projection area of the lower end of encapsulation shell (11) on connecting plate (31) is equal to the surface area of connecting plate (31) itself, the upper end of connecting plate (31) is provided with the connecting strip (32) of extending along front and back direction on the left and right sides, and the connecting strip (32) is slidably assembled on the left and right sides of the lower end of encapsulation shell (11).

3. A two-way sensor according to claim 2, wherein: The locking piece (110) includes: The rear wall of encapsulation shell (11) is provided with the strip-shaped sliding slot (111) extending along the up and down direction, the card block (112) is slidably assembled in the strip-shaped sliding slot (111), and the upper surface of bottom plate (13) is provided with the card slot for the lower end of card block (112) to be clamped into; Elastic member (113), the upper end of card block (112) and the inner wall of the upper end of strip-shaped sliding slot (111) are provided with elastic member (113).

4. A two-way sensor according to claim 3, wherein: The elastic member (113) is spring or elastic sheet, and the two ends of the elastic member (113) are respectively connected and fixed with the upper end of the card block (112) and the inner wall of the upper end of the strip-shaped sliding slot (111).

5. A two-way sensor according to claim 2, wherein: It further includes a gasket (5) assembled on the lower end of the connecting plate (31).

6. A two-way sensor according to claim 5, wherein: The temperature insulation layer (2) and the gasket (5) are both silica gel components.

7. A two-way sensor according to claim 1, wherein: The monitoring assembly (4) includes a temperature sensing probe (42) and an LED lamp (41), the temperature sensing probe (42) is arranged in the inner wall of the temperature insulation cavity, the LED lamp (41) is embedded on the encapsulation shell (11), and the temperature sensing probe (42) is electrically connected with the LED lamp (41).

8. The dual-path sensor of claim 1, wherein: The magnetic steel assembly (12) includes two magnetic steels (121), and the two magnetic steels (121) are arranged in the inside of the temperature insulation cavity in the left and right directions and are connected and fixed with the inner wall of the temperature insulation cavity.

9. A two-way sensor according to claim 5, wherein: The left and right sides of the encapsulation shell (11), the gasket (5) and the connecting plate (31) are all provided with mounting holes (6).

10. A two-way sensor according to claim 7, wherein: It further includes an external power supply, and the temperature sensing probe (42) and the LED lamp (41) are both electrically connected with the external power supply.

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