A temperature transmitter with dust-proof function

Abstract

The present invention discloses a temperature transmitter with a dust-proof function, which includes a temperature transmitter housing, a main board, a temperature-current transmitter, a receiver, and a jack. The main board is built inside the temperature transmitter housing, the temperature-current transmitter is built below the main board, the receiver is arranged on the upper surface of the temperature transmitter housing, and the jack is arranged on the side surface of the temperature transmitter housing. It also includes a dust-proof buffer net, which is arranged around the temperature transmitter housing. Beneficial effects: By setting up the dust-proof buffer net, the harm of damage to the temperature transmitter caused by a large number of solid floating objects in the working environment is avoided, and the work efficiency is improved; setting up a protective cover and a grid-shaped film further prevents dust from entering the inside of the temperature transmitter; setting up an electric fan solves the heat dissipation problem during work.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature transmitters, and more particularly to a temperature transmitter with a dust-proof function. Background Art

[0002] A temperature transmitter, also known as a thermocouple (or thermal resistor), is a temperature sensor. Its core components include a temperature-sensing element (i.e., a thermocouple), a junction box fixedly installed in the measured medium, and a temperature-current transmitter. When the temperature of the measured medium changes, a signal is output from the terminal block installed in the junction box. The temperature-current transmitter converts the thermal resistor signal into an instrument that can transmit a standardized output signal, enabling the indication value on the instrument panel to directly represent the temperature of the measured object. It usually has high measurement accuracy, and this device is widely used in fields such as industrial automation, environmental protection, medical treatment, and construction.

[0003] The temperature-current transmitter converts the signal of the temperature sensor into a current signal and connects it to a secondary instrument to display the corresponding temperature.

[0004] Chinese Patent CN220398734U discloses a temperature transmitter with a dust-proof function. Its technical solution includes a transmitter housing and a main board. The top of the transmitter housing is connected with a cover plate through a thread. The bottom inner wall of the cover plate is fixedly connected with a rotating motor. The output shaft of the rotating motor is fixedly connected with a rotating shaft. When the rotating motor is started, the output shaft of the rotating motor rotates, which can make the rotating shaft rotate. The rotation of the rotating shaft can make the rotating plate rotate. When the rotating plate rotates, a cyclone can be formed on the top of the main board, which can prevent dust from falling steadily on the main board and causing coverage. When the rotating plate rotates, it can drive the brush strip to rotate. The soft brush strip can clean the dust on the main board. When the exhaust fan is started, the exhaust fan can extract the dust in the transmitter housing through the dust discharge port. Therefore, the dust in the transmitter housing can be prevented from covering the main board, achieving the effect of protecting the main board.

[0005] The main application scenarios of temperature transmitters are outdoors where the industrial environment is complex. The outdoor environment contains large solid floating objects, dust particles, etc. A large number of solid floating objects strike the surface of the temperature transmitter, and even small dust particles can enter the device through the heat dissipation holes, causing short-circuit damage to the internal electronic components. The harsh working environment affects the normal operation and measurement accuracy of the temperature transmitter. In severe cases, it may even cause equipment damage. Although the above patents deal with the dust inside the temperature transmitter to ensure the safety of electronic components, they only remove the dust and do not perform preventive dust treatment on the temperature transmitter, nor do they consider the impact of solid floating objects on the temperature transmitter itself. Summary of the Invention

[0006] Objective of the Invention: Aiming at the deficiencies existing in the prior art, the present invention provides a temperature transmitter with a dust-proof function. By providing a dust-proof buffer net, the present invention avoids damage to the temperature transmitter caused by a large number of solid floating objects in the working environment, thereby affecting the working efficiency.

[0007] Technical Solution: A temperature transmitter with a dust-proof function includes a temperature transmitter housing, a main board, a temperature-current transmitter, a receiver, and a jack guiding part. The main board is built inside the temperature transmitter housing. The temperature-current transmitter is built below the main board. The receiver is arranged on the upper surface of the temperature transmitter housing. The jack guiding part is arranged on the side surface of the temperature transmitter housing. It further includes a dust-proof buffer net, which is arranged around the temperature transmitter housing.

[0008] By providing the dust-proof buffer net, it can effectively avoid the impact on the temperature transmitter housing caused by a large number of relatively large solid floating objects in the working environment, filter a large number of solid floating objects, and has a buffering effect.

[0009] Preferred Option: In order to prevent dust from entering the interior of the temperature transmitter housing and damaging the internal electronic components, a protective cover is installed between the dust-proof buffer net and the temperature transmitter housing. At least one ventilation hole is provided at the upper end of the protective cover.

[0010] By providing the protective cover, the structural strength of the temperature transmitter housing is enhanced. When applied to harsh outdoor scenarios, it can effectively avoid damage to the housing caused by the collision of relatively hard solid floating objects, and at the same time can well isolate dust from entering, avoiding damage to the internal electronic components of the temperature transmitter housing by dust. The setting of the ventilation hole can effectively discharge the high-temperature gas generated inside the device, realize the heat dissipation inside the device, and ensure the stability of the device operation.

[0011] Preferred Option: In order to enable the main board to have good heat dissipation, an electric fan is arranged inside the temperature transmitter housing. The electric fan includes a fan motor fixedly set on the inner top of the temperature transmitter housing. At least three fan blades evenly distributed along the axis of the fan motor are arranged at the output end of the fan motor.

[0012] By providing the electric fan, the high-temperature gas generated by the internal operation can be quickly discharged through the ventilation hole, which can avoid the influence on electronic devices caused by the high-temperature environment and ensure the working efficiency. At the same time, it can blow the dust particles attached to the dust-proof buffer net away, avoiding blockage of the dust-proof net caused by long-term accumulation and affecting heat dissipation.

[0013] Preferred Option: In order to remove the dust that has accidentally entered the interior of the temperature transmitter housing, at least one ribbon is provided on each fan blade of the electric fan. The length of the ribbon is greater than the height from the fan blade to the lower edge of the main board.

[0014] By setting up streamers, the dust on the main board is wiped off during the rotation of the streamers.

[0015] Preferred option. In order to control the temperature transmitter to work and ensure good dust-proof effect when the temperature transmitter is not working, a blocking structure is provided on the jack guiding part. The blocking structure includes a baffle. Any side of the baffle is hinged to the orifice side edge of the jack guiding part. A baffle groove is provided inside the jack guiding part on the side hinged to the baffle. A torsion spring is provided at the hinged part of the baffle and the jack guiding part. Both ends of the torsion spring are fixedly connected to the baffle and the baffle groove respectively. A self-resetting travel switch is provided at the bottom of the baffle groove. The self-resetting travel switch is electrically connected to the fan motor through a wire.

[0016] A blocking structure is provided at the jack. During operation, the plug can push the orifice plate on the blocking structure inward. The orifice plate inclines inward, thereby squeezing the reset travel switch and driving the rest of the dust-proof components to operate, so as to achieve dust-proofing during the operation of the temperature transmitter, effectively preventing dust from entering the equipment interior, ensuring the normal operation and measurement accuracy of the temperature transmitter, and blocking and dust-proofing the jack when not working. The travel switch and the orifice plate can be reset through the torsion spring to achieve the blocking effect; the reliability and service life of the equipment are improved.

[0017] Preferred option. In order to continuously maintain working and monitor the temperature under the condition of power failure, a reserve power source is fixedly provided on the outer side of the temperature transmitter housing. The reserve power source is respectively connected to the fan motor and the main board through wires.

[0018] By setting up a reserve capacitor, the circuit can be continuously maintained stable during the operation of the equipment; and in the case of emergency power failure of the equipment, it can provide stable power for the equipment to make the equipment work uninterruptedly.

[0019] Preferred option. In order to clean the dust remaining on the surface of the main board, dust-absorbing materials are attached to the surface of the streamers.

[0020] By attaching dust-absorbing materials to the surface of the streamers, and using the dust-absorbing performance of the dust-absorbing materials, the dust on the main board is removed during the rotation of the streamers.

[0021] Preferred option. In order to ensure the strength of the protective cover while having good weather resistance and lightness, the protective cover is made of plastic material.

[0022] By setting the material of the protective cover as plastic material, it has strong impact and vibration resistance capabilities, avoiding the harm to the temperature transmitter housing caused by the impact of solid floating objects.

[0023] Beneficial effects: By providing a dust-proof buffer net, the present invention avoids the damage to the temperature transmitter caused by a large amount of solid floating substances in the working environment, improving the work efficiency; the provision of a protective cover and a grid-shaped film further prevents dust from entering the interior of the temperature transmitter; the provision of an electric fan solves the heat dissipation problem during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0025] Figure 1 The following shows the overall schematic diagram of the present invention;

[0026] Figure 2 The following shows the front view of the present invention;

[0027] Figure 3 The following shows the bottom view of the present invention

[0028] Figure 4 The following shows the partial enlarged left view of the baffle of the present invention;

[0029] Figure 5 The following shows the perspective view of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly under and obliquely under the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0033] As Figures 1-3 shown, a temperature transmitter with a dust-proof function includes a temperature transmitter housing 1, a main board 2, a temperature-current transmitter 3, a receiver 4, and a jack guiding part 5. The main board 2 is built inside the temperature transmitter housing 1. The temperature-current transmitter 3 is built below the main board 2. The receiver 4 is arranged on the upper surface of the temperature transmitter housing 1. The jack guiding part 5 is arranged on the side surface of the temperature transmitter housing 1. It further includes a dust-proof buffer net 6, and the dust-proof buffer net 6 is arranged around the temperature transmitter housing 1.

[0034] By arranging the dust-proof buffer net 6, it can effectively avoid the impact on the temperature transmitter housing 1 caused by a large number of relatively large solid floating objects in the working environment, filter a large number of solid floating objects, and has a buffering effect.

[0035] A protective cover 7 is installed between the dust-proof buffer net 6 and the temperature transmitter housing 1, and at least one ventilation hole 701 is arranged at the upper end of the protective cover.

[0036] By setting up the protective cover 7, the structural strength of the temperature transmitter housing 1 is enhanced. When applied to harsh outdoor scenarios, it can effectively avoid damage to the housing caused by the collision of relatively hard solid floating objects, and at the same time can well isolate dust from entering, avoiding damage to the internal electronic components of the temperature transmitter housing 1 by dust. The setting of the ventilation hole 701 can effectively discharge the high-temperature gas generated inside the device, realize the heat dissipation inside the device, and ensure the stability of the device operation.

[0037] An electric fan 8 is arranged inside the temperature transmitter housing 1. The electric fan 8 includes a fan motor 801 fixedly set at the inner top of the temperature transmitter housing 1, and at least three fan blades evenly distributed along the axis of the fan motor are arranged at the output end of the fan motor 801.

[0038] By setting up an electric fan 8, the high-temperature gas generated by the internal operation can be quickly discharged through the ventilation holes 701, which can avoid the impact on electronic devices caused by the high-temperature environment and ensure the working efficiency; at the same time, the dust particles attached to the dust-proof buffer net 6 can be blown away to prevent the blockage of the dust-proof buffer net 6 caused by long-term accumulation and affect heat dissipation.

[0039] At least one ribbon 9 is provided on each blade of the electric fan 8, and the length of the ribbon 9 is greater than the height from the blade to the lower edge of the main board.

[0040] By setting up the ribbon 9, the dust on the main board 2 is wiped off during the rotation of the ribbon 9.

[0041] As Figures 4-5 shown, a blocking structure 10 is provided on the jack guiding part 5. The blocking structure 10 includes a baffle 11. One side of the baffle 11 is hinged to the orifice side edge of the jack guiding part 5. A baffle groove 113 is provided inside the jack guiding part 5 on the side hinged to the baffle 11. A torsion spring 112 is provided at the hinge of the baffle 11 and the jack guiding part 5, and both ends of the torsion spring 112 are fixedly connected to the baffle 11 and the baffle groove 113 respectively.

[0042] A self-resetting travel switch 111 is provided at the bottom of the baffle groove 113, and the self-resetting travel switch 111 is electrically connected to the fan motor 801 through a wire.

[0043] By setting a blocking structure at the jack guiding part 5, during operation, the plug can push the orifice plate 113 on the blocking structure 10 inward, and the orifice plate 113 inclines inward, thereby squeezing the reset travel switch 111 to drive the operation of the rest of the dust-proof components, so as to achieve dust-proofing during the operation of the temperature transmitter, effectively prevent dust from entering the equipment interior, ensure the normal operation and measurement accuracy of the temperature transmitter, and block and dust-proof the jack guiding part 5 when not working. The travel switch 111 and the orifice plate 113 can be reset through the torsion spring 112 to achieve the blocking effect; the reliability and service life of the equipment are improved.

[0044] As Figures 1-3 shown, a reserve power supply 12 is fixedly provided on the outside of the temperature transmitter housing 1, and the reserve power supply 12 is respectively connected to the fan motor 801 and the main board 2 through wires.

[0045] By setting up the reserve capacitor 12, during the operation of the equipment, the circuit can be continuously kept stable; and in the case of an emergency power failure of the equipment, it can provide a stable power supply for the equipment to make the equipment work uninterruptedly.

[0046] The surface of the ribbon 9 is attached with dust-absorbing material.

[0047] By attaching dust-absorbing material to the surface of the streamer 9 and utilizing the dust-absorbing performance of the dust-absorbing material, dust on the main board 2 is removed during the rotation of the streamer 9. The dust-absorbing material is preferably a dust cleaner, which can be applied to the surface of the streamer 9 to adsorb and remove internal dust.

[0048] The material of the protective cover 7 is a plastic material.

[0049] By setting the material of the protective cover 7 as a plastic material, it has strong anti-impact and anti-vibration capabilities, avoiding the harm caused by the impact of solid floating objects on the temperature transmitter housing 1. The plastic material is preferably plastic.

[0050] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature transmitter with dustproof function, comprising a temperature transmitter housing (1), a main board (2), a temperature current transmitter (3), a receiver (4), and a jack guide portion (5), wherein the main board (2) is built inside the temperature transmitter housing (1), the temperature current transmitter (3) is built below the main board (2), the receiver (4) is arranged on the upper surface of the temperature transmitter housing (1), and the jack guide portion (5) is arranged on the side surface of the temperature transmitter housing (1), characterized in that: The temperature transmitter housing (1) further comprises a dustproof buffer net (6), the dustproof buffer net (6) being arranged on the periphery of the temperature transmitter housing (1); a protective cover (7) being installed between the dustproof buffer net (6) and the temperature transmitter housing (1), the upper end of the protective cover being provided with at least one ventilation hole (701); an electric fan (8) being arranged inside the temperature transmitter housing (1), the electric fan (8) comprising a fan motor (801) fixedly set at the top of the temperature transmitter housing (1), the output end of the fan motor (801) being provided with at least three blades evenly distributed along the axis of the fan motor, each blade of the electric fan (8) being provided with at least one streamer (9), the length of the streamer (9) being greater than the height from the blade to the lower edge of the main board, and the surface of the streamer (9) being provided with dust absorbing material; a reserve power supply (12) being fixedly arranged outside the temperature transmitter housing (1), the reserve power supply (12) being connected to the fan motor (801) and the main board (2) respectively through wires; the material of the protective cover (7) is a plastic material.

2. The temperature transmitter with dustproof function according to claim 1, characterized in that: A blocking structure (10) is provided on the jack guide portion (5), the blocking structure (10) comprising a baffle (11), any one side of the baffle (11) being hinged to the side edge of the hole opening of the jack guide portion (5), a baffle groove (113) being provided inside the jack guide portion (5) on the side hinged to the baffle (11), a torsion spring (112) being provided at the hinged portion between the baffle (11) and the jack guide portion (5), the two ends of the torsion spring (112) being fixedly connected to the baffle (11) and the baffle groove (113) respectively.

3. The temperature transmitter with dustproof function according to claim 2, characterized in that: A self-resetting travel switch (111) is provided at the bottom of the baffle groove (113); the self-resetting travel switch (111) is electrically connected to the fan motor (801) via a wire.

4. The temperature transmitter with dustproof function according to claim 1, characterized in that: The material of the protective cover (7) is plastic material.

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