Magnetic switch

Abstract

The utility model belongs to the technical field of magnetic switches, and particularly relates to a magnetic switch which comprises a switch body, a heat insulation cover is arranged outside the switch body, a sealing cover is arranged at the top of the heat insulation cover, the switch body is provided with a data line, the extending end of the data line penetrates through the sealing cover, an air inlet is formed in one side of the heat insulation cover, and an air outlet is formed in the other side of the heat insulation cover. One side of the data line is provided with an air inlet, the other side of the data line is provided with an air outlet, the air inlet is connected with an air inlet pipe, the air outlet is connected with an exhaust pipe, and a wire bunching piece is arranged between the data line and the air inlet pipe and comprises a first clamping plate and a second clamping plate; the heat insulation cover can perform physical heat insulation on the magnetic switch and provide better heat insulation protection for the magnetic switch, the air inlet and the air outlet are formed in the two sides of the heat insulation cover, air is ventilated to the air inlet through the external heat dissipation fan, heat in the heat insulation cover is taken away by air, and continuous heat dissipation on the switch body is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnetic switch technical field, especially a kind of magnetic switch. BACKGROUND

[0002] Magnetic switch is a kind of switch device using the change of magnetic field to control circuit on-off, and it is mainly composed of magnetic induction element, contact, magnet and shell etc.When magnet is close to magnetic induction element, the magnetic field in magnetic induction element changes, thereby triggering switch action, and magnetic switch is widely used in industrial automation.

[0003] The existing magnetic switch plays an important role in the silk-making process of cigarette factory, especially in drying production line.In the material conveying link of drying production line, magnetic switch can be used to detect the existence and position of material.When tobacco or other materials pass through a specific position, the magnetic marker or magnetic sensor on the material interacts with the switch, and the magnetic switch generates a signal to inform the control system that the material has reached the designated position, so as to carry out the next drying or other processing operation.However, the magnetic switch is in high-temperature environment for a long time, and the magnetic property is affected, resulting in increased magnetic loss, so the magnetic switch will gradually lose its function, thereby affecting the operation of the equipment. SUMMARY

[0004] The utility model provides a kind of magnetic switch, to solve the problem that existing magnetic switch lacks temperature-resistant structure, and magnetic switch will gradually lose its function in high-temperature environment.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of magnetic switch, including switch body, the outside of the switch body is provided with heat shield, the top of the heat shield is provided with sealing cover, the switch body is provided with data line, the extension end of the data line penetrates sealing cover, one side of the heat shield is provided with air inlet, the other side is provided with air outlet, the air inlet is connected with air inlet pipe, and the air outlet is connected with exhaust pipe.

[0007] Preferably, a wire bundling element is provided between the data line and the air inlet pipe, the wire bundling element includes a first clamping plate and a second clamping plate, a latch is fixed to one side of the first clamping plate close to the second clamping plate, and a pin hole is formed in the side wall of the second clamping plate to cooperate with the latch.

[0008] Preferably, the extension end of the air inlet pipe is provided with a pipe joint.

[0009] Preferably, a support assembly is provided on the outer wall of the heat shield, the support assembly includes a limiting ring fixed to the outer wall of the heat shield, a support pipe is penetratingly arranged in the limiting ring, a limiting plate is fixed to the outer wall of the support pipe, and support plates are arranged at both ends of the support pipe.

[0010] Preferably, the bottom of the support plate is fixed with a suction cup.

[0011] Preferably, the inside of the heat shield is provided with a heat absorption plate, the top of the heat absorption plate is fixed with a heat dissipation fin, the switch body is placed on the top of the heat absorption plate, and the top of the switch body is provided with a pressing plate.

[0012] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0013] The heat shield is arranged, the magnetic switch is physically heat-insulated, better heat-insulating protection is provided for the magnetic switch, the heat shield is provided with an air inlet and an air outlet on two sides, the air inlet is ventilated by the external heat dissipation fan, the air carries away the heat inside the heat shield, the switch body is continuously heat-dissipated, the switch body is prevented from being in a high-temperature environment, and the normal operation of the magnetic switch is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a perspective view of the heat shield and the sealing cover of the utility model;

[0017] Figure 3 It is an internal structure schematic diagram of the heat shield of the utility model;

[0018] Figure 4 It is an exploded view of the heat absorption plate, the switch body and the pressing plate of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the support assembly of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the support plate of the utility model;

[0021] Figure 7 It is an exploded view of the utility model wire binding part;

[0022] In the diagram: 1. Heat insulation cover; 2. Sealing cover; 3. Data cable; 4. Air inlet; 5. Air inlet pipe; 6. Air outlet; 7. Exhaust pipe; 8. Limiting ring; 81. Support pipe; 9. Limiting plate; 10. Support plate; 101. Suction cup; 11. Pipe joint; 12. Cable harness; 121. Clamping plate one; 122. Clamping plate two; 123. Pin; 13. Switch body; 14. Heat absorption plate; 15. Heat sink; 16. Pressure plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-3 As shown, a magnetic switch includes a switch body 13, a heat insulation cover 1 is provided on the outside of the switch body 13, a sealing cover 2 is provided on the top of the heat insulation cover 1, a data cable 3 is provided on the switch body 13, the extension end of the data cable 3 passes through the sealing cover 2, an air inlet 4 is provided on one side of the heat insulation cover 1, an air outlet 6 is provided on the other side, an air inlet 4 is connected to an air inlet pipe 5, and an air outlet 6 is connected to an exhaust pipe 7.

[0025] In this embodiment, the switch body 13 is located inside the heat insulation cover 1, which isolates the external hot air. The extension end of the air inlet pipe 5 is provided with a pipe joint 11, which is connected to the pipe of the external pipe cooling fan. The external cooling fan blows air into the air inlet pipe 5, then into the heat insulation cover 1, and then blows directly onto the switch body 13, blowing the heat emitted by the switch body 13 out through the exhaust pipe 7, thus ensuring the continuous heat dissipation of the switch body 13.

[0026] like Figures 1-7 As shown, a cable tie 12 is provided between the data cable 3 and the air intake pipe 5. The cable tie 12 includes a first clamping plate 121 and a second clamping plate 122. A pin 123 is fixed on the side of the first clamping plate 121 near the second clamping plate 122. A pin hole that mates with the pin 123 is opened on the side wall of the second clamping plate 122. The first clamping plate 121 and the second clamping plate 122 are used to limit the data cable 3 and the air intake pipe 5, thereby avoiding the problem of the data cable 3 and the air intake pipe 5 being scattered. This makes it easier to straighten the data cable 3 and the air intake pipe 5 in the working environment and makes it easier to manage the magnetic switch.

[0027] like Figures 1-5As shown, the outer wall of the heat shield 1 is provided with a support assembly, which comprises a limiting ring 8 fixed to the outer wall of the heat shield 1, the limiting ring 8 is provided with a support pipe 81, the outer wall of the support pipe 81 is fixed with a limiting plate 9, the limiting plate 9 can limit two support pipes 81 together, ensure the stable connection of the support pipe 81, the both ends of the support pipe 81 are provided with a support plate 10; the bottom of the support plate 10 is fixed with a suction cup 101, which is adsorbed on the external mounting structure through the suction cup 101, usually the external mounting structure is the support of the cigarette processing equipment, which will not be described here, the support pipe 81 connects the limiting ring 8, the limiting plate 9 and the support plate 10 together, to ensure that the heat shield 1 is stably arranged on the external support.

[0028] As shown in the drawings, Figures 1-4 As shown, the inside of the heat shield 1 is provided with a heat absorbing plate 14, the top of the heat absorbing plate 14 is fixed with a heat sink 15, the switch body 13 is placed on the top of the heat absorbing plate 14, the top of the switch body 13 is provided with a pressing plate 16; during installation, the opening at the top of the heat shield 1 is in an open state, then the heat absorbing plate 14 is placed in the heat shield 1, the bottom of the heat absorbing plate 14 is provided with a positioning pin (not shown in the figure), and a positioning pin insertion hole (not shown in the figure) is opened in the bottom of the heat shield 1, this positioning mode is prior art, which will not be described here, the heat absorbing plate 14 is stably arranged in the heat shield 1, at the same time, the switch body 13 is placed on the top of the heat absorbing plate 14, the top of the heat absorbing plate 14 is provided with a hole, the bottom of the pressing plate 16 is fixed with an insertion shaft, the switch body 13 is fixed on the top of the heat absorbing plate 14 by the pressing plate 16, to ensure the stability of the switch body 13 and the more stable work.

[0029] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A magnetic switch comprising a switch body (13), characterised in that: The switch body (13) is externally provided with a heat shield (1), the top of the heat shield (1) is provided with a sealing cover (2), the switch body (13) is provided with a data line (3), the extending end of the data line (3) penetrates the sealing cover (2), one side of the heat shield (1) is provided with an air inlet (4), the other side is provided with an air outlet (6), the air inlet (4) is connected with an air inlet pipe (5), and the air outlet (6) is connected with an air outlet pipe (7).

2. A magnetic switch according to claim 1, characterized in that: The data line (3) and the air inlet pipe (5) are provided with a wire binding part (12), the wire binding part (12) comprises a clamping plate one (121) and a clamping plate two (122), the clamping plate one (121) is fixed with a bolt (123) on the side close to the clamping plate two (122), and the sidewall of the clamping plate two (122) is provided with a pin hole matched with the bolt (123).

3. A magnetic switch according to claim 1, wherein: The extending end of the air inlet pipe (5) is provided with a pipe joint (11).

4. The magnetic switch of claim 1, wherein: The outer wall of the heat shield (1) is provided with a supporting assembly, the supporting assembly comprises a limiting ring (8) fixed on the outer wall of the heat shield (1), the limiting ring (8) is provided with a supporting pipe (81) penetratingly, the outer wall of the supporting pipe (81) is fixed with a limiting plate (9), and the both ends of the supporting pipe (81) are provided with supporting plates (10).

5. A magnetic switch according to claim 4, wherein: The bottom of the supporting plate (10) is fixed with a suction disc (101).

6. A magnetic switch according to claim 1, wherein: The inside of the heat shield (1) is provided with a heat absorbing plate (14), the top of the heat absorbing plate (14) is fixed with a heat dissipation fin (15), the switch body (13) is placed on the top of the heat absorbing plate (14), and the top of the switch body (13) is provided with a pressing plate (16).

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