Explosion-proof temperature sensor

Abstract

The utility model discloses an explosion-proof temperature sensor, and belongs to the technical field of temperature sensors. The explosion-proof type temperature sensor comprises an explosion-proof mechanism, the explosion-proof mechanism comprises an explosion-proof shell, the explosion-proof shell is composed of an outer cylinder and an inner cylinder, a heat dissipation cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, four sets of first explosion-proof ribs and four sets of second explosion-proof ribs are installed in the outer cylinder and the inner cylinder respectively, and four pressing blocks are slidably arranged in the heat dissipation cavity. The opposite ends of the four pressing blocks penetrate through the inner cylinder and extend to the outside, a temperature sensor body is arranged between the opposite ends of the four pressing blocks and comprises a sensor shell, the outer wall of the sensor shell is attached to one ends of the pressing blocks, and the ends, away from the sensor shell, of the four pressing blocks are each connected with a pair of springs; according to the explosion-proof and explosion-proof temperature sensor, explosion-proof and explosion-proof can be effectively carried out on the temperature sensor, the temperature sensor is prevented from being damaged, and the explosion-proof and explosion-proof temperature sensor has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, in particular to an explosion-proof temperature sensor. Background Art

[0002] A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety. They can be categorized by measurement method: contact and non-contact. They can also be divided into RTDs and thermocouples based on the sensor material and electronic component characteristics.

[0003] Based on the above, the inventors have found the following problems: the current temperature sensor is directly exposed to the external environment, and the temperature sensor does not have explosion-proof and flame-proof effects. When the temperature sensor is subjected to fragments and impacts generated by an explosion in the external environment, it is easy to cause the temperature sensor housing to burst and be damaged.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an explosion-proof temperature sensor is provided to achieve the purpose of having greater practical value. Utility Model Content

[0005] The purpose of the present invention is to provide an explosion-proof temperature sensor to solve the problems raised in the above background technology.

[0006] In view of the above problems, the technical solution proposed by the present invention is:

[0007] A kind of explosion-proof temperature sensor, including an explosion-proof mechanism, which includes an explosion-proof shell, which is composed of an outer tube and an inner tube, a heat dissipation cavity is formed between the inner wall of the outer tube and the outer wall of the inner tube, and four groups of first explosion-proof ribs and four groups of second explosion-proof ribs are respectively installed inside the outer tube and the inner tube, four pressure blocks are slidingly provided inside the heat dissipation cavity, the opposite ends of the four pressure blocks all pass through the inner tube and extend to the outside, and a temperature sensor body is provided between the opposite ends of the four pressure blocks, the temperature sensor body includes a sensor housing, the outer wall of the sensor housing is in contact with one end of the pressure block, and the bottom end of the sensor housing is connected to the detection end, the four pressure blocks are connected to a pair of springs at the ends away from the sensor housing, and the ends of the pair of springs away from the pressure blocks are connected to the inner wall of the outer tube.

[0008] Furthermore, the ends of the four pressing blocks close to the sensor housing are all arc-shaped, and the ends of the four pressing blocks close to the sensor housing are all embedded with first heat dissipation fins.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that by setting one end of the four pressure blocks into an arc shape, the pressure blocks can better fit with the sensor housing under the elastic force of the spring, thereby preventing the temperature sensor body from shaking in the explosion-proof shell. At the same time, by embedding and installing the first heat dissipation fin inside the arc-shaped end of the four pressure blocks, the first heat dissipation fin dissipates heat from the sensor housing, thereby preventing heat accumulation inside the temperature sensor body from causing explosion.

[0010] Furthermore, a cavity is provided inside each of the four pressing blocks, and a plurality of second heat sink fins are provided inside the cavity. One end of each of the second heat sink fins is connected to a side of the first heat sink fin away from the sensor housing, and one end of each of the second heat sink fins away from the first heat sink fin passes through the pressing block and extends to the outside.

[0011] The beneficial effect of adopting the above further solution is that by opening a cavity inside the pressing block, it is convenient to install the second heat sink fin. By installing the second heat sink fin, it is convenient to dissipate heat from the first heat sink fin, thereby improving the heat dissipation efficiency of the first heat sink fin to the sensor housing.

[0012] Furthermore, a heat dissipation mechanism is provided at the bottom end of the explosion-proof shell, and the heat dissipation mechanism includes a sealing plate, the upper end of the sealing plate is in contact with the bottom end of the explosion-proof shell, and the top surface of the sealing plate is connected to the bottom end of the sensor housing, the bottom end of the detection end passes through the sealing plate and extends to the outside, and four mounting holes are provided on the upper end surface of the sealing plate, and four cooling fans are installed inside the four mounting holes.

[0013] The beneficial effect of adopting the above further scheme is that by setting a sealing plate, the upper end of the sealing plate is connected to the bottom end of the sensor housing. When the upper end of the sealing plate is fitted with the bottom end of the explosion-proof shell, the temperature sensor body enters the inner tube of the explosion-proof shell. By opening four mounting holes on the sealing plate and installing cooling fans inside the four mounting holes, it is convenient to dissipate heat for the second cooling fins extending from one end of the heat dissipation cavity to the outside of the pressing block, thereby improving the heat dissipation efficiency of the second cooling fins to the first cooling fins.

[0014] Furthermore, the upper end of the explosion-proof shell is provided with four first ventilation holes, and the bottom end of the explosion-proof shell is provided with four second ventilation holes, and the first ventilation holes, the second ventilation holes and the mounting hole are located on the same axis.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that, through the coordinated use of the first ventilation hole, the second ventilation hole and the mounting hole, when the cooling fan in the mounting hole is started, it is convenient to let the external air enter the interior of the heat dissipation cavity through the cooling fan, the mounting hole and the first ventilation hole, so that the air takes away the heat on the second heat dissipation fin and is then discharged through the second ventilation hole.

[0016] Furthermore, a sealing groove is provided on the bottom surface of the explosion-proof shell, a sealing ring is provided inside the sealing groove, the bottom end of the sealing ring is connected to the upper end of the sealing plate, and the outer wall of the sealing ring is in contact with the inner wall of the sealing groove.

[0017] The beneficial effect of adopting the above further solution is that, through the coordinated use of the sealing groove and the sealing ring, the sealing performance between the explosion-proof shell and the sealing plate is improved, and external media is prevented from entering the interior of the explosion-proof shell inner tube and contacting the sensor housing.

[0018] Furthermore, a first flange ring is mounted on the outside of the explosion-proof shell near the bottom end, and a second flange ring is mounted on the outside of the sealing plate. The bottom end of the first flange ring fits with the upper end of the second flange ring, and the first flange ring and the second flange ring are connected by a plurality of bolts.

[0019] The beneficial effect of adopting the above further solution is that the first flange ring and the second flange ring are connected by a plurality of bolts, thereby facilitating the connection and fixation between the explosion-proof shell and the sealing plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the explosion-proof temperature sensor, by providing an explosion-proof shell, prevents external explosions from impacting the temperature sensor body inside the explosion-proof shell, and at the same time provides explosion-proof protection for the temperature sensor body. The explosion-proof shell is composed of an outer tube and an inner tube, which facilitates the double-layer explosion-proof and explosion-proof protection of the temperature sensor body through the explosion-proof shell, thereby preventing the sensor shell from being exposed to the outside and being damaged by the impact of the explosion. By arranging four groups of first explosion-proof ribs inside the outer tube of the explosion-proof shell and four groups of second explosion-proof ribs inside the inner tube of the explosion-proof shell, the first explosion-proof ribs and the second explosion-proof ribs can effectively disperse and transmit the pressure exerted on the explosion-proof shell, thereby preventing the explosion-proof shell from rupturing prematurely when subjected to excessive pressure. By setting one end of the four pressing blocks into an arc shape, the pressing blocks can better fit with the sensor shell under the elastic force of the spring, thereby preventing the temperature sensor body from shaking in the explosion-proof shell. At the same time, by embedding and installing the first heat dissipation fins inside the arc-shaped ends of the four pressing blocks, the first heat dissipation fins dissipate heat for the sensor shell, thereby preventing the heat accumulation inside the temperature sensor body from causing explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an explosion-proof temperature sensor provided by the utility model;

[0022] Figure 2 A schematic diagram of the explosion-proof three-dimensional structure of an explosion-proof temperature sensor provided by the utility model;

[0023] Figure 3 A schematic diagram of the cross-sectional structure of an explosion-proof shell of an explosion-proof temperature sensor provided by the utility model Figure 1 ;

[0024] Figure 4 A schematic diagram of the cross-sectional structure of an explosion-proof shell of an explosion-proof temperature sensor provided by the present invention Figure 2 ;

[0025] Figure 5 The present invention provides a schematic diagram of the top cross-sectional structure of an explosion-proof shell of an explosion-proof temperature sensor.

[0026] In the figure: 100, temperature sensor body; 1001, sensor housing; 1002, detection end; 200, explosion-proof mechanism; 2001, explosion-proof shell; 2002, heat dissipation cavity; 2003, first explosion-proof rib; 2004, second explosion-proof rib; 2005, pressure block; 2006, first heat dissipation fin; 2007, second heat dissipation fin; 2008, spring; 2009, first flange ring; 2010, sealing groove; 300, heat dissipation mechanism; 3001, sealing plate; 3002, sealing ring; 3003, cooling fan; 3004, second flange ring; 400, first ventilation hole; 500, second ventilation hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5The utility model provides a technical solution: an explosion-proof temperature sensor, including an explosion-proof mechanism 200, the explosion-proof mechanism 200 includes an explosion-proof shell 2001, the explosion-proof shell 2001 is composed of an outer tube and an inner tube, a heat dissipation cavity 2002 is formed between the inner wall of the outer tube and the outer wall of the inner tube, and four groups of first explosion-proof ribs 2003 and four groups of second explosion-proof ribs 2004 are respectively installed inside the outer tube and the inner tube, four pressing blocks 2005 are slidingly provided inside the heat dissipation cavity 2002, and the opposite ends of the four pressing blocks 2005 all penetrate the inner tube The temperature sensor body 100 extends to the outside, and is provided between opposite ends of the four pressing blocks 2005. The temperature sensor body 100 includes a sensor housing 1001. The outer wall of the sensor housing 1001 fits with one end of the pressing block 2005, and the bottom end of the sensor housing 1001 is connected to the detection end 1002. The ends of the four pressing blocks 2005 away from the sensor housing 1001 are connected to a pair of springs 2008, and the ends of the pair of springs 2008 away from the pressing blocks 2005 are connected to the inner wall of the outer cylinder. By setting up the explosion-proof shell 2001, the external explosion is prevented from impacting the temperature sensor body 100 in the explosion-proof shell 2001, and the temperature sensor body 100 is explosion-proofed. The explosion-proof shell 2001 is composed of an outer tube and an inner tube, which is convenient for performing double-layer explosion-proof and explosion-proof protection on the temperature sensor body 100 through the explosion-proof shell 2001, and avoiding the sensor housing 1001 being exposed to the outside and damaged by the impact of the explosion. By setting four groups of first explosion-proof ribs 2003 inside the outer tube of the explosion-proof shell 2001, Four groups of second explosion-proof ribs 2004 are arranged inside the inner tube of the shell 2001. The first explosion-proof ribs 2003 and the second explosion-proof ribs 2004 can effectively disperse and transmit the pressure on the explosion-proof shell 2001, preventing the explosion-proof shell 2001 from rupturing prematurely when subjected to excessive pressure. By setting one end of the four pressing blocks 2005 into an arc shape, the pressing blocks 2005 can better fit with the sensor housing 1001 under the elastic force of the spring 2008, thereby preventing the temperature sensor body 100 from shaking in the explosion-proof shell 2001.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5The present invention provides a technical solution: the ends of the four pressing blocks 2005 close to the sensor housing 1001 are all arc-shaped, and the four pressing blocks 2005 are embedded with first heat dissipation fins 2006 at the ends close to the sensor housing 1001. The four pressing blocks 2005 are each provided with a cavity inside, and a plurality of second heat dissipation fins 2007 are provided inside the cavity. One end of the plurality of second heat dissipation fins 2007 is connected to the side of the first heat dissipation fin 2006 away from the sensor housing 1001, and the ends of the plurality of second heat dissipation fins 2007 away from the first heat dissipation fin 2006 pass through the pressing blocks 2005 and extend to the outside. The bottom end of the explosion-proof housing 2001 is provided with a heat dissipation mechanism 300. The heat dissipation mechanism 300 includes a sealing plate 3001, the upper end of the sealing plate 3001 is fitted with the bottom end of the explosion-proof shell 2001, and the top surface of the sealing plate 3001 is connected to the bottom end of the sensor housing 1001, the bottom end of the detection end 1002 extends to the outside through the sealing plate 3001, the upper end surface of the sealing plate 3001 is provided with four mounting holes, and four cooling fans 3003 are installed inside the four mounting holes. The upper end of the explosion-proof shell 2001 is provided with four first ventilation holes 400, and the bottom end of the explosion-proof shell 2001 is provided with four second ventilation holes 500. The relative first ventilation holes 400, the second ventilation holes 500 and the mounting holes are located on the same axis. By means of the four pressing blocks 20 05. A first heat dissipation fin 2006 is embedded in one end of the arc, so that the first heat dissipation fin 2006 dissipates heat to the sensor housing 1001, thereby preventing the heat accumulation inside the temperature sensor body 100 from causing explosion. A cavity is opened inside the pressing block 2005, thereby facilitating the installation of the second heat dissipation fin 2007. By installing the second heat dissipation fin 2007, it is convenient to dissipate heat to the first heat dissipation fin 2006, thereby improving the heat dissipation efficiency of the first heat dissipation fin 2006 to the sensor housing 1001. A sealing plate 3001 is provided, and the upper end of the sealing plate 3001 is connected to the bottom end of the sensor housing 1001. When the upper end of the sealing plate 3001 is connected to the explosion-proof shell 2001, the sealing plate 3001 is connected to the explosion-proof shell 2001. After the bottom ends of the temperature sensor body 100 are fitted, the temperature sensor body 100 enters the inner tube of the explosion-proof shell 2001. Through the cooperation of the first ventilation hole 400, the second ventilation hole 500 and the mounting hole, when the cooling fan 3003 in the mounting hole is started, it is convenient to let the external air enter the interior of the heat dissipation cavity 2002 through the cooling fan 3003, the mounting hole and the first ventilation hole 400, so that the air takes away the heat on the second heat dissipation fins 2007 and is then discharged through the second ventilation hole 500, thereby dissipating the heat of the second heat dissipation fins 2007 extending from one end in the heat dissipation cavity 2002 to the outside of the pressing block 2005, thereby improving the heat dissipation efficiency of the second heat dissipation fins 2007 to the first heat dissipation fins 2006.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 5 The utility model provides a technical solution: a sealing groove 2010 is provided on the bottom surface of the explosion-proof shell 2001, a sealing ring 3002 is provided inside the sealing groove 2010, the bottom end of the sealing ring 3002 is connected to the upper end of the sealing plate 3001, and the outer wall of the sealing ring 3002 is in contact with the inner wall of the sealing groove 2010, a first flange ring 2009 is provided on the outside of the explosion-proof shell 2001 near the bottom end, a second flange ring 3004 is provided on the outside of the sealing plate 3001, and the bottom end of the first flange ring 2009 is in contact with the second flange ring 3004. 004, and the upper ends of the first flange ring 2009 and the second flange ring 3004 are fitted together, and the first flange ring 2009 and the second flange ring 3004 are connected by a number of bolts. The sealing groove 2010 and the sealing ring 3002 are used in conjunction with each other to improve the sealing performance between the explosion-proof shell 2001 and the sealing plate 3001, and prevent the external medium from entering the interior of the inner cylinder of the explosion-proof shell 2001 and contacting the sensor housing 1001. The first flange ring 2009 and the second flange ring 3004 are connected by a number of bolts, which facilitates the connection and fixation between the explosion-proof shell 2001 and the sealing plate 3001.

[0033] Specifically, the working principle of this explosion-proof temperature sensor is as follows: when in use, an explosion-proof shell 2001 is set to prevent external explosions from impacting the temperature sensor body 100 inside the explosion-proof shell 2001, and at the same time, the temperature sensor body 100 is explosion-proof protected. The explosion-proof shell 2001 is composed of an outer tube and an inner tube, which is convenient for performing double-layer explosion-proof and explosion-proof protection on the temperature sensor body 100 through the explosion-proof shell 2001, avoiding the sensor housing 1001 from being exposed to the outside and being damaged by the impact of the explosion. Four groups of first explosion-proof Explosion rib 2003, four groups of second explosion-proof ribs 2004 are set inside the inner tube of the explosion-proof shell 2001, the first explosion-proof rib 2003 and the second explosion-proof rib 2004 can effectively disperse and transmit the pressure on the explosion-proof shell 2001, and prevent the explosion-proof shell 2001 from rupturing prematurely when it is subjected to excessive pressure. By setting one end of the four pressing blocks 2005 into an arc shape, the pressing blocks 2005 can better fit with the sensor housing 1001 under the elastic force of the spring 2008, thereby preventing the temperature sensor body 100 from shaking in the explosion-proof shell 2001. The first heat dissipation fin 2006 is embedded in one end of the arc of the pressing block 2005, so that the first heat dissipation fin 2006 dissipates heat to the sensor housing 1001, thereby preventing the temperature sensor body 100 from exploding due to heat accumulation. By opening a cavity inside the pressing block 2005, it is convenient to install the second heat dissipation fin 2007. By installing the second heat dissipation fin 2007, it is convenient to dissipate heat to the first heat dissipation fin 2006, thereby improving the heat dissipation efficiency of the first heat dissipation fin 2006 to the sensor housing 1001. 00. The second ventilation hole 500 and the mounting hole are used in conjunction. When the cooling fan 3003 in the mounting hole is started, it is convenient for external air to enter the interior of the heat dissipation cavity 2002 through the cooling fan 3003, the mounting hole and the first ventilation hole 400, so that the air takes away the heat on the second heat dissipation fin 2007 and is then discharged through the second ventilation hole 500, thereby dissipating the heat of the second heat dissipation fin 2007, one end of which extends from the inside of the heat dissipation cavity 2002 to the outside of the pressing block 2005, thereby improving the heat dissipation efficiency of the second heat dissipation fin 2007 to the first heat dissipation fin 2006.

Claims

1. An explosion-proof temperature sensor, characterized in that: The invention comprises an explosion-proof mechanism (200), wherein the explosion-proof mechanism (200) comprises an explosion-proof shell (2001), wherein the explosion-proof shell (2001) is composed of an outer cylinder and an inner cylinder, wherein a heat dissipation cavity (2002) is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and wherein four groups of first explosion-proof ribs (2003) and four groups of second explosion-proof ribs (2004) are respectively installed inside the outer cylinder and the inner cylinder, and wherein four pressing blocks (2005) are slidingly provided inside the heat dissipation cavity (2002), wherein opposite ends of the four pressing blocks (2005) extend through the inner cylinder to the outside, and wherein the four pressing blocks (2005) are slidingly provided inside the heat dissipation cavity (2002). 05) is provided between the two opposite ends of the temperature sensor body (100), the temperature sensor body (100) includes a sensor housing (1001), the outer wall of the sensor housing (1001) is in contact with one end of the pressure block (2005), and the bottom end of the sensor housing (1001) is connected to the detection end (1002), and the ends of the four pressure blocks (2005) away from the sensor housing (1001) are connected to a pair of springs (2008), and the ends of the pair of springs (2008) away from the pressure blocks (2005) are connected to the inner wall of the outer cylinder.

2. An explosion-proof temperature sensor according to claim 1, characterized in that: The four pressing blocks (2005) are all arc-shaped at one end close to the sensor housing (1001), and the four pressing blocks (2005) are all embedded with first heat dissipation fins (2006) at one end close to the sensor housing (1001).

3. An explosion-proof temperature sensor according to claim 2, characterized in that: A cavity is provided inside each of the four pressing blocks (2005), and a plurality of second heat dissipation fins (2007) are provided inside the cavity. One end of each of the plurality of second heat dissipation fins (2007) is connected to a side of the first heat dissipation fin (2006) away from the sensor housing (1001), and one end of each of the plurality of second heat dissipation fins (2007) away from the first heat dissipation fin (2006) passes through the pressing block (2005) and extends to the outside.

4. The explosion-proof temperature sensor according to claim 3, characterized in that: The bottom end of the explosion-proof shell (2001) is provided with a heat dissipation mechanism (300), and the heat dissipation mechanism (300) includes a sealing plate (3001), the upper end of the sealing plate (3001) is in contact with the bottom end of the explosion-proof shell (2001), and the top surface of the sealing plate (3001) is connected to the bottom end of the sensor housing (1001), the bottom end of the detection end (1002) passes through the sealing plate (3001) and extends to the outside, and the upper end surface of the sealing plate (3001) is provided with four mounting holes, and four cooling fans (3003) are installed inside the four mounting holes.

5. The explosion-proof temperature sensor according to claim 4, characterized in that: The upper end of the explosion-proof shell (2001) is provided with four first ventilation holes (400), and the lower end of the explosion-proof shell (2001) is provided with four second ventilation holes (500), and the first ventilation holes (400), the second ventilation holes (500) and the mounting hole are located on the same axis.

6. The explosion-proof temperature sensor according to claim 5, characterized in that: A sealing groove (2010) is provided on the bottom surface of the explosion-proof shell (2001), a sealing ring (3002) is provided inside the sealing groove (2010), the bottom end of the sealing ring (3002) is connected to the upper end of the sealing plate (3001), and the outer wall of the sealing ring (3002) is in contact with the inner wall of the sealing groove (2010).

7. The explosion-proof temperature sensor according to claim 6, characterized in that: A first flange ring (2009) is mounted on the outside of the explosion-proof shell (2001) near the bottom end, and a second flange ring (3004) is mounted on the outside of the sealing plate (3001). The bottom end of the first flange ring (2009) fits in contact with the upper end of the second flange ring (3004), and the first flange ring (2009) and the second flange ring (3004) are connected by a plurality of bolts.

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