Temperature sensor with anti-corrosion effect

Abstract

The utility model discloses a temperature sensor with an anti-corrosion effect, which comprises an anti-corrosion shell, one end of the anti-corrosion shell is fixedly connected with a heat conduction sealing cap, a thermistor is arranged in the heat conduction sealing cap, two ends of the thermistor are electrically connected with wires, the wires are arranged in the anti-corrosion shell, and the thermistor is arranged in the anti-corrosion shell. The side, away from the heat conduction sealing cap, of the anti-corrosion shell is sleeved with a sheath. The utility model relates to the technical field of temperature sensors, in particular to a temperature sensor with an anti-corrosion effect, which can effectively protect internal structures such as a lead, a plug and a thermistor through matching among an anti-corrosion shell, a sheath, a lead and a plug and adopting the anti-corrosion shell and the sheath which are made of anti-corrosion, high-temperature-resistant and difficult-to-heat-conduction materials. Oxidation caused by high temperature, oxidation and corrosive materials is avoided, the integrity of the whole shell part is protected, the plug part can be replaced, maintenance is easy, and recycling is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature sensor technical field, concretely is a temperature sensor with anticorrosive effect. BACKGROUND

[0002] Temperature sensor is the sensor that can feel temperature and convert into available output signal, and temperature sensor is the core part of temperature measuring instrument, and there are many kinds, and can be divided into two big categories of contact type and non -contact type according to measurement mode, and is divided into two categories of thermal resistance and thermocouple according to sensor material and electronic component characteristics.

[0003] Traditional temperature sensor is poor in corrosion resistance, is easy to cause internal structure damage due to the corrosion of shell, and plug portion is more easily damaged due to plug, contact with the outside world and other reasons, once damaged, the whole temperature sensor cannot be used. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a temperature sensor with anticorrosive effect, solves the problems that traditional temperature sensor is poor in corrosion resistance, is easy to cause internal structure damage due to the corrosion of shell, and plug portion is more easily damaged due to plug, contact with the outside world and other reasons, once damaged, the whole temperature sensor cannot be used.

[0005] To realize the above-mentioned purpose, the utility model passes through the following technical scheme to realize: a temperature sensor with anticorrosive effect, including anticorrosive shell, one end of anticorrosive shell is fixedly connected with heat conduction closed cap, the inside installation of heat conduction closed cap has thermistor, both ends of thermistor are electrically connected with wire, wire is arranged in the inside of anticorrosive shell, the side of anticorrosive shell away from heat conduction closed cap is sleeved with sheath, the inside installation of sheath has two plugs, two plugs are electrically connected to the end of two wires respectively.

[0006] Preferably, one end of the plug is fixedly connected to the end of the wire by a screw.

[0007] Preferably, the end of the sheath sleeve is fixedly connected to the anticorrosive shell and a plurality of limiting cards are arranged thereon, and a first matching part is arranged at the joint of the limiting card and the anticorrosive shell.

[0008] Preferably, a cavity is formed in the inside of the sheath, one end of the plug is located in the inside of the cavity, the other end penetrates through the side wall of the cavity, a sealing plug is arranged on the inner wall of the cavity and inserted into the inner wall of the anticorrosive shell, a drying net is inserted into the inside of the anticorrosive shell, a reserved hole is formed on the side of the cavity close to the plug, and the inside of the cavity is filled with insulating glue.

[0009] Preferably, a second joint is arranged between the sealing plug and the inner wall of the corrosion-proof shell.

[0010] Preferably, a fixing rod is embedded in the insulating glue, and one end of the fixing rod is fixed to the end face of the corrosion-proof shell.

[0011] Preferably, a sealing gasket is attached to the side of the insulating glue away from the reserved hole, and the sealing gasket is sleeved on the outer wall of the plug and inserted into the side reserved insertion hole of the sheath.

[0012] Advantages

[0013] The temperature sensor with corrosion-proof effect has the following advantages: the temperature sensor with corrosion-proof effect is cooperated by the corrosion-proof shell, the sheath, the wire and the plug, the corrosion-proof shell and the sheath made of corrosion-proof and high-temperature-resistant materials which are not easy to conduct heat can effectively protect the internal structure such as the wire, the plug and the thermistor, avoid oxidation due to high temperature, oxidation and corrosive materials, protect the integrity of the overall shell part, and the plug part can be replaced, so that the maintenance is simple and the recycling is facilitated.

[0014] The cavity, the drying net, the reserved hole and the insulating glue are arranged, the overall sealing effect and the corrosion-proof effect of the temperature sensor with corrosion-proof effect are further improved, the plug and the wire are effectively fixed, when the plug is replaced, the sheath and the corrosion-proof shell can be disassembled by simple heating and separation of the limiting clamps, and the maintenance is convenient. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is Figure 1 a sectional view;

[0017] Figure 3 It is Figure 2 a structural schematic view of the plug in the utility model.

[0018] In the figure: 1, corrosion-proof shell; 11, heat-conducting closed cap; 2, thermistor; 3, wire; 4, plug; 41, screw; 5, sheath; 51, limiting clamp; 511, first joint; 52, cavity; 53, sealing plug; 531, second joint; 532, drying net; 54, fixing rod; 55, reserved hole; 56, insulating glue; 57, sealing gasket. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0020] By the person skilled in the art, the components in the case are sequentially connected, and the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is the known technology in the art, and the following mainly introduces the working principle and process.

[0021] The conventional temperature sensor has poor corrosion resistance, is easy to be damaged due to corrosion of the shell, and the plug part is more likely to be damaged due to plug-in, contact with the outside world and other reasons, and once damaged, the whole temperature sensor cannot be used.

[0022] Therefore, the present application provides a temperature sensor with corrosion resistance, which is made of a corrosion-resistant shell and a sheath made of a corrosion-resistant, high-temperature-resistant and non-conductive material, which can effectively protect the internal structure such as the wire, plug and thermistor, avoid oxidation due to high temperature, oxidation and corrosive materials, protect the integrity of the overall shell part, and the plug part can be replaced, which is simple to maintain and conducive to recycling.

[0023] By Figures 1-3 It can be seen that the temperature sensor with corrosion resistance in the case comprises a corrosion-resistant shell 1, one end of the corrosion-resistant shell 1 is fixedly connected with a heat-conducting closed cap 11, the heat-conducting closed cap 11 is internally provided with a thermistor 2, both ends of the thermistor 2 are electrically connected with wires 3, the wires 3 are arranged in the corrosion-resistant shell 1, a sheath 5 is sleeved on the side of the corrosion-resistant shell 1 away from the heat-conducting closed cap 11, the sheath 5 is internally provided with two plugs 4, and the two plugs 4 are respectively electrically connected with the ends of the two wires 3.

[0024] In the specific implementation process, it is particularly worth pointing out that the corrosion-resistant shell 1 is made of a material such as polyimide, has the characteristics of insulation, high temperature resistance, and corrosion resistance, the heat-conducting closed cap 11 is made of aluminum oxide ceramic, has the characteristics of corrosion resistance, good heat conduction effect, and insulation, is wrapped around the outer wall of the thermistor 2, is conducive to heat conduction while effectively protecting the heat-conducting closed cap 11 and the corrosion-resistant shell 1 can be produced by injection molding, for example, after the heat-conducting closed cap 11 is produced, the corrosion-resistant shell 1 is produced by injection molding and fixed on the outer wall of the heat-conducting closed cap 11. Of course, it can also be produced independently and then assembled. Of course, the processing precision requirement is relatively high to meet the sealing requirement. The thermistor 2 can be made of metal oxides such as zinc oxide, tin oxide, and iron oxide. The resistance value decreases with the increase of temperature, which belongs to the negative temperature coefficient thermistor. It can also be made of metal materials such as copper, nickel, iron, and chromium. The resistance value increases with the increase of temperature, which belongs to the positive temperature coefficient thermistor. The specific selection can be made according to the actual demand. In this embodiment, it is not limited, and it can meet the use demand. The lead wire 3 can be made of copper, aluminum, etc. It can be selected as required without special requirements. The sheath 5 is used to fix the plug 4 and close the open end of the corrosion-resistant shell 1. The sheath 5 should be made of insulating and corrosion-resistant materials, such as the same material as the corrosion-resistant shell 1.

[0025] In an implementable manner, one end of the plug 4 is fixedly connected with the end of the lead wire 3 through the screw 41.

[0026] In the specific implementation process, it is particularly worth pointing out that the purpose of such arrangement is to facilitate the disassembly of the plug 4 and the lead wire 3. Since the plug 4 is the only conductor in the temperature sensor with corrosion protection effect, it is relatively easy to be corroded and needs to be connected with the external interface, which is easy to be damaged. It is designed as a replaceable structure for easy disassembly.

[0027] In an implementable manner, the sheath 5 is sleeved on one end of the corrosion-resistant shell 1 and fixedly connected with a plurality of limiting cards 51. The limiting card 51 and the corrosion-resistant shell 1 are provided with a first matching part 511.

[0028] In the implementation process, it is worth pointing out that the design of the limiting card 51 and the first fitting part 511 facilitates the fixing of the sheath 5 and the corrosion-resistant shell 1, wherein the first fitting part 511 can be a protrusion processed on the limiting card 51 and a clamping groove opened on the surface of the corrosion-resistant shell 1, and the two cooperate to realize the fixing of the limiting card 51 and the corrosion-resistant shell 1. The sheath 5 and the corrosion-resistant shell 1 can be sealed by a sealing ring, which needs to meet the corrosion-resistant effect, for example, neoprene. Of course, when the sheath 5 and the corrosion-resistant shell 1 are sealed by neoprene, the temperature sensor with corrosion-resistant effect should be used within the range of -30-140 degrees Celsius to ensure sufficient sealing effect. If the temperature of the use scene exceeds this range, the sheath 5 and the corrosion-resistant shell 1 can be sealed by selecting suitable materials according to the actual situation, and the specific material is not limited.

[0029] In an implementable manner, the inside of the sheath 5 is provided with a cavity 52, one end of the plug 4 is located inside the cavity 52, and the other end penetrates through the side wall of the cavity 52. The inner wall of the cavity 52 is provided with a sealing plug 53 inserted into the inner wall of the corrosion-resistant shell 1, the inside of the sealing plug 53 is inserted with a drying net 532 located inside the corrosion-resistant shell 1, a reserved hole 55 is opened on one side of the cavity 52 close to the plug 4, and the inside of the cavity 52 is filled with insulating glue 56.

[0030] In the implementation process, it is worth pointing out that the purpose of the cavity 52 is to facilitate the installation of the wire 3, the plug 4 and other structures. The design of the sealing plug 53 forms a relatively independent space in the inside of the corrosion-resistant shell 1 to prevent the insulating glue 56 from entering the inside, and by putting drying agent in the inside of the drying net 532, a small amount of moisture in the inside of the corrosion-resistant shell 1 can be absorbed to avoid corrosion of the wire 3 and the thermistor 2. The design of the reserved hole 55 facilitates the injection of the insulating glue 56 into the inside of the cavity 52 after assembly, and through the solidification of the insulating glue 56, the bent part of the wire 3 and the plug 4 can be fixed, and water vapor can be prevented from entering to improve the corrosion-resistant effect. The insulating glue 56 can be made of hot melt adhesive. In this case, the temperature sensor with corrosion-resistant effect is only suitable for use in low-temperature scenes, and the specific temperature range is determined by the melting point of the selected hot melt adhesive. In this way, on the one hand, the insulating glue 56 can provide fixing and sealing effect during normal use, and on the other hand, during disassembly, the part can be heated to melt the insulating glue 56, so as to facilitate the disassembly of the sheath 5 and the corrosion-resistant shell 1. In this way, the plug 4 can be detached from the wire 3 for replacement.

[0031] In an implementable manner, a second fitting part 531 is arranged between the sealing plug 53 and the inner wall of the corrosion-resistant shell 1.

[0032] In the embodiment, it is worth pointing out that the second fitting part 531 can be a groove on the sealing plug 53 and a protrusion on the inner wall of the corrosion-proof shell 1, which can improve the sealing and fixing effects of the corrosion-proof shell 1 and the sealing plug 53.

[0033] In an embodiment, the fixing rod 54 is embedded in the insulating glue 56, and one end of the fixing rod 54 is fixed to the end face of the corrosion-proof shell 1.

[0034] In the embodiment, it is worth pointing out that the fixing rod 54 can improve the connection strength between the corrosion-proof shell 1 and the sheath 5 and assist the fixing effect of the limiting clamp 51.

[0035] In an embodiment, the sealing gasket 57 is attached to the side of the reserved hole 55 away from the insulating glue 56, and the sealing gasket 57 is sleeved on the outer wall of the plug 4 and inserted into the side reserved insertion hole of the sheath 5.

[0036] In the embodiment, it is worth pointing out that the sealing gasket 57 should cover the surface of the reserved hole 55 after complete assembly and be inserted into the side reserved insertion hole of the sheath 5, which aims to seal the reserved hole 55 and seal the sheath 5 and the external insertion hole after the sheath 5 is connected to the external insertion hole, thereby protecting the plug 4.

[0037] It should be noted that the relational terms herein such as first and second are used only to differentiate one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. In addition, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the statement "including a limited element" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0038] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0039] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature sensor with a corrosion protection effect, comprising a corrosion-protected housing (1), characterized in that: One end of the anticorrosion shell (1) is fixedly connected with a heat-conducting closed cap (11), the inside of the heat-conducting closed cap (11) is mounted with a thermistor (2), both ends of the thermistor (2) are electrically connected with wires (3), the wires (3) are arranged in the inside of the anticorrosion shell (1), the side of the anticorrosion shell (1) away from the heat-conducting closed cap (11) is sleeved with a sheath (5), the inside of the sheath (5) is mounted with two plugs (4), and the two plugs (4) are respectively electrically connected with the ends of the two wires (3).

2. A temperature sensor with a corrosion protection effect according to claim 1, characterized in that: One end of the plug (4) is fixedly connected with the end of the wire (3) through a screw (41).

3. A temperature sensor with a corrosion protection effect according to claim 2, characterized in that: The sheath (5) sleeved on one end of the anticorrosion shell (1) is fixedly connected with a plurality of limiting clamps (51), and the limiting clamps (51) and the anticorrosion shell (1) are provided with first matching parts (511) at the abutting positions.

4. A temperature sensor with a corrosion protection effect according to claim 3, characterized in that: The inside of the sheath (5) is provided with a cavity (52), one end of the plug (4) is located in the inside of the cavity (52), the other end penetrates through the side wall of the cavity (52), the inner wall of the cavity (52) is provided with a sealing plug (53) inserted into the inner wall of the anticorrosion shell (1), the inside of the sealing plug (53) is inserted with a drying net (532) located in the inside of the anticorrosion shell (1), one side of the cavity (52) close to the plug (4) is provided with a reserved hole (55), and the inside of the cavity (52) is filled with insulating glue (56).

5. A temperature sensor with a corrosion protection effect according to claim 4, characterized in that: The second matching parts (531) are arranged between the sealing plug (53) and the inner wall of the anticorrosion shell (1).

6. A temperature sensor with a corrosion protection effect according to claim 5, characterized in that: The inside of the insulating glue (56) is embedded with a fixing rod (54), one end of the fixing rod (54) is fixedly connected with the end face of the anticorrosion shell (1).

7. A temperature sensor with a corrosion protection effect according to claim 6, characterized in that: The surface of the reserved hole (55) away from the insulating glue (56) is attached with a sealing gasket (57), the sealing gasket (57) is sleeved on the outer wall of the plug (4) and is inserted into the side reserved insertion hole of the sheath (5).

Images