Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of traditional on-off value linear temperature sensing element
Fig. 2 is the sectional drawing of traditional on-off value linear temperature sensing element
Fig. 3 is the structural representation of the utility model embodiment one
Fig. 4 is the cross sectional representation (the A-A cross section of Fig. 3) of the utility model embodiment one
Fig. 5 is an initialization view of the present utility model
Fig. 6 is an alarm condition synoptic diagram of the present utility model
Fig. 7 is the synoptic diagram that returns to form of the present utility model
Fig. 8 is the structural representation of the utility model embodiment two
Fig. 9 is the cross sectional representation of the utility model embodiment two
Figure 10 is the structural representation of the utility model embodiment three
Figure 11 is the cross sectional representation of the utility model embodiment three
Figure 12 is the structural representation of the utility model embodiment four
Figure 13 is the cross sectional representation of the utility model embodiment four
Figure 14 is the structural representation of the utility model embodiment five
Figure 15 is the cross sectional representation of the utility model embodiment five
Figure 16 is the structural representation of the utility model embodiment six
Figure 17 is the cross sectional representation of the utility model embodiment six
Figure 18 is the structural representation of the utility model embodiment seven
Figure 19 is the cross sectional representation of the utility model embodiment seven
Figure 20 is the structural representation of the utility model embodiment eight
Figure 21 is the schematic cross-section (the B-B cross section of Figure 20) of the utility model embodiment eight
Figure 22 is the structural representation of the utility model embodiment nine
Figure 23 is the schematic cross-section (the C-C cross section of Figure 22) of the utility model embodiment nine
Figure 24 is the structural representation of the utility model embodiment ten
Figure 25 is the schematic cross-section (the D-D cross section of Figure 24) of the utility model embodiment ten
Figure 26 is the structural representation of the utility model embodiment 11
Figure 27 is the schematic cross-section (the E-E cross section of Figure 26) of the utility model embodiment 11
Figure 28 is the structural representation of the utility model embodiment 12
Figure 29 is the schematic cross-section (the F-F cross section of Figure 28) of the utility model embodiment 12
Figure 30 is the structural representation of the utility model embodiment 13
Figure 31 is the schematic cross-section (the G-G cross section of Figure 30) of the utility model embodiment 13
Figure 32 is the structural representation of the utility model embodiment 14
Figure 33 is the schematic cross-section (the H-H cross section of Figure 32) of the utility model embodiment 14
Figure 34 is the structural representation of the utility model embodiment 15
Figure 35 is the schematic cross-section (the I-I cross section of Figure 34) of the utility model embodiment 15
Figure 36 is the structural representation of the utility model embodiment 16
Figure 37 is the schematic cross-section (the J-J cross section of Figure 36) of the utility model embodiment 16
Figure 38 is the structural representation of the utility model embodiment 17
Figure 39 is the schematic cross-section (the K-K cross section of Figure 38) of the utility model embodiment 17
Embodiment
Embodiment one:
Referring to Fig. 3 and Fig. 4, temperature sensing element of the present utility model, comprise two detecting conductors, described two detecting conductors become parallel stranded setting, article two, having one in the detecting conductor at least is memory alloy wire, detecting conductor 7 is a memory alloy wire in the present embodiment, and detecting conductor 6 is conventional tinsel.Article two, have at least one to coat elastic insulating layer 8 in the detecting conductor, at least one radial elastic window 9 is set on this elastic insulating layer, described elasticity window is arranged between the compressive plane of two detecting conductors.In the present embodiment, detecting conductor 6 coats elastic insulating layer 8, and the thickness of this elastic insulating layer is 1 millimeter, and the whole piece temperature sensing element can be provided with a plurality of elasticity windows, and the distribution density of elasticity window can be a 1-100/rice; The shape of elasticity window can be circle or rectangle, and the diameter of circular elasticity window is the 0.5-1 millimeter.The width of rectangular elasticity window is the 0.2-1 millimeter, and length can be the 1-10 millimeter.In the present embodiment, two detecting conductors are equidistant spiral way and twist together, and its twisting pitch is less than or equal to 1500 millimeters.
The stranded mode of two detecting conductors in the utility model can be two strands mutually, also can be that a detecting conductor is wrapped on another detecting conductor, can also adopt conventional stranded mode.
In the utility model, memory alloy wire flexibility under conventional temperature range is fine, in case surpass this phase transition temperature, it is very big that the intensity of memory alloy wire and rigidity will become.Conventional temperature range of the present utility model refers to memory alloy wire martensitic phase temperature range, its martensite reverse transformation finishing temperature Af design load can be selected to set in 5 ℃~100 ℃ scopes, the conventional temperature range of present embodiment design is-40 ℃~40 ℃, when detecting conductor is heated, its temperature rises thereupon, when temperature reaches memory alloy wire martensite reverse transformation finishing temperature Af, memory alloy wire generation martensite reverse transformation, the elastic force that intensity increases and generation is very big, and return to initial high temperature design shape, the high temperature design shape adopts rectilinear form usually.
The principle of work of temperature sensing element of the present utility model is as follows:
Referring to Fig. 5 (only showing xsect of the present utility model), the utility model is in (under the Normal Environmental Temperature) under the initialization state, and elastic insulating layer has certain elasticity; memory alloy wire 7 does not undergo phase transition; better softness, two detecting conductors are in state of insulation, can not be short-circuited.
Referring to Fig. 6 (only showing xsect of the present utility model), the utility model is in the fire hazard environment, when temperature reaches memory alloy wire martensite reverse transformation finishing temperature Af, and memory alloy wire generation martensite reverse transformation, rigidity improves, elastic force is undergone mutation, and returns to initial high temperature design shape, under the elastic force effect of memory alloy wire 7, article two, detecting conductor mutual extrusion, the radial elastic window is out of shape expansion thereupon, and two detecting conductors are realized electrically contacting, and promptly are short-circuited and report to the police.
Referring to Fig. 7 (only showing xsect of the present utility model), when fire extinguishing finishes, when the utility model environment recovery of living in arrives normal temperature, memory alloy wire undergoes phase transition, revert to martensite, under the elastic force effect of radial elastic window 9, memory alloy wire 7 recovers to the original position, and the state between two detecting conductors becomes state of insulation.
Memory alloy wire in the utility model can be a kind of in Ultimum Ti, NiTi copper memorial alloy, iron-based memorial alloy, the copper-based memory alloy material.(austenite end of a period phase transition temperature Af is 5 ℃-100 ℃).
Elastic insulating layer in the utility model can be a thermoplastic elastic material, also can be elastomeric material, also can be other macromolecular material of rubber-like.Elastomeric coating thickness is 0.1 millimeter~3 millimeters.
Embodiment two:
Referring to Fig. 8, Fig. 9, present embodiment is the improvement on the basis of enforcement one, and detecting conductor 11 is a memory alloy wire in the present embodiment, and detecting conductor 10 is conventional tinsel.Coat elastic insulating layer 12 on the detecting conductor, the thickness of this elastic insulating layer is 0.5 millimeter, and the width of elasticity window 13 is 1 millimeter.In order to improve the temperature sensing element reliability, outside described two detecting conductors, coat insulating sheath layer 14.This insulating sheath layer uses conventional material.
Embodiment three:
Referring to Figure 10, Figure 11, present embodiment is the improvement on embodiment one basis, comprise two detecting conductors, described two detecting conductors become parallel stranded setting, article two, having one in the detecting conductor at least is memory alloy wire, article two, have at least one to coat elastic insulating layer in the detecting conductor, at least one radial elastic window is set on this elastic insulating layer, described elasticity window is arranged between the stranded compressive plane of two detecting conductors, between described elastic insulating layer and described detecting conductor the NTC characteristic barrier layer is set.In the present embodiment, detecting conductor 19 is a memory alloy wire, and detecting conductor 15 is conventional tinsel, and detecting conductor 15 outsides coat NTC characteristic barrier layer 18, coat elastic insulating layer 16 in NTC characteristic barrier layer outside, offer a plurality of radial elastic windows 17 on the elastic insulating layer.Described NTC characteristic barrier layer is meant the plastic layer with negative temperature coefficient feature, belongs to conventional material, does not describe in detail.
In the present embodiment, elastic insulating layer and NTC characteristic barrier layer conversion one upper/lower positions promptly can also be coated the NTC characteristic barrier layer outside described elastic insulating layer.
The principle of work of present embodiment and embodiment one are similar, difference is: after memory alloy wire undergoes phase transition during breaking out of fire, detecting conductor 15 outer NTC characteristic barrier layer and detecting conductors 19 (being memory alloy wire) come in contact, article two, the electric signal parameter between the detecting conductor can raise with the temperature continuation and change, size according to electric signal parameter is carried out fire alarm, its alarm principle is referring to the Chinese patent instructions, and its patent No. is 200520119064.X.
Embodiment four:
Referring to Figure 12, Figure 13, present embodiment is the improvement on embodiment three bases, detecting conductor 19 is a memory alloy wire in the present embodiment, detecting conductor 15 is conventional tinsel, detecting conductor 15 outsides coat NTC characteristic barrier layer 18, coat elastic insulating layer 16 in NTC characteristic barrier layer outside, offer a plurality of radial elastic windows 17 on the elastic insulating layer.In order to improve the temperature sensing element reliability, outside described two detecting conductors, coat insulating sheath layer 20.
Embodiment five:
Referring to Figure 14, Figure 15, present embodiment is the improvement on embodiment one basis, comprise two detecting conductors, described two detecting conductors become parallel stranded setting, article two, having one in the detecting conductor at least is memory alloy wire, article two, have at least one to coat elastic insulating layer in the detecting conductor, at least one radial elastic window is set on this elastic insulating layer, described elasticity window is arranged between the stranded compressive plane of two detecting conductors, coats the NTC characteristic barrier layer on a described other detecting conductor.Detecting conductor 22 is a memory alloy wire in the present embodiment, and detecting conductor 21 is conventional tinsel.Coat elastic insulating layer 23 on the detecting conductor 22, a plurality of radial elastic windows 24 are set on this elastic insulating layer, coat NTC characteristic barrier layer 25 on the detecting conductor 21.The principle of work of present embodiment and embodiment one are similar, difference is: after memory alloy wire undergoes phase transition during breaking out of fire, detecting conductor 21 outer NTC characteristic barrier layer and detecting conductors 22 (being memory alloy wire) come in contact, article two, the electric signal parameter between the detecting conductor can raise with the temperature continuation and change, and carries out fire alarm according to the size of electric signal parameter.
Embodiment six:
Referring to Figure 16, Figure 17, present embodiment is the improvement on embodiment five bases, and in the present embodiment, detecting conductor 22 is a memory alloy wire, and detecting conductor 21 is conventional tinsel.Coat elastic insulating layer 23 on the detecting conductor 22, a plurality of radial elastic windows 24 are set on this elastic insulating layer, coat NTC characteristic barrier layer 25 on the detecting conductor 21.In order to improve the temperature sensing element reliability, outside described two detecting conductors, coat insulating sheath layer 26.
Embodiment seven:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 18 and Figure 19, structure for the ease of expression elasticity window, this figure has only shown the structure of a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, an elasticity window 29 is set on this elastic insulating layer, described elasticity window is long and narrow strip window, this long and narrow strip window and the isometric setting of detecting conductor.The width of described window is that perhaps the width of window is 0.2 millimeter between 0~1.5 times of the detecting conductor diameter.(width of so-called elasticity window can be 0, because when using very thin instrument after the elastic insulating layer upper shed, because the elasticity of elastic insulating layer makes opening closure substantially), the long and narrow strip window of present embodiment also can be applied among the embodiment one to embodiment six.
Embodiment eight: present embodiment is the improvement on embodiment seven bases, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 20 and Figure 21, this figure has only shown the structure of a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, an elasticity window 30 is set on this elastic insulating layer, described elasticity window is long and narrow strip window, and this long and narrow strip window is looped around on the detecting conductor in the equidistant helix mode.The width of described window is 0.2 millimeter.
Embodiment nine:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 22 and Figure 23, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 31 are set on this elastic insulating layer, and described elasticity window is long and narrow strip window, and the width of window is the 0.2-3 millimeter, the longitudinal length of window is the 1-500 millimeter, and a plurality of long and narrow strip windows are provided with along detecting conductor is vertically equidistant.In the present embodiment, the density that a plurality of long and narrow strip windows vertically are provided with along detecting conductor can be every meter 1-500, and the long and narrow strip window of present embodiment also can be applied among the embodiment one to embodiment six.
Embodiment ten:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 24 and Figure 25, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 32 are set on this elastic insulating layer, this elasticity window is a rectangular window, the width of window is the 0.2-3 millimeter, the longitudinal length of window is the 1-3 millimeter, the density that a plurality of windows vertically are provided with along detecting conductor can be every meter 1-500, and the rectangular window of present embodiment also can be applied among the embodiment one to embodiment six.
Embodiment 11:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 26 and Figure 27, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 33 are set on this elastic insulating layer, this elasticity window is a circular window, and the diameter of window is the 0.2-3 millimeter, and the density that a plurality of windows vertically are provided with along detecting conductor can be every meter 1-500.
Embodiment 12:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 28 and Figure 29, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 34 are set on this elastic insulating layer, and this elasticity window is a circular window, and the diameter of window is the 0.2-1 millimeter, a plurality of windows constitute a row, arrange window more and are provided with along detecting conductor is vertically equidistant.
Embodiment 13:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 30 and Figure 31, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 35 are set on this elastic insulating layer, this elasticity window is a circular window, and the diameter of window is the 0.2-1 millimeter, and a plurality of windows vertically are the setting of equidistant spiral chain along detecting conductor.
Embodiment 14:
Present embodiment is the improvement on embodiment one basis, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 32 and Figure 33, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 36 are set on this elastic insulating layer, this elasticity window is the annular window, and the width of window is the 0.2-1 millimeter, and a plurality of annular windows are provided with along detecting conductor is vertically equidistant.The density that is provided with can be every meter 1-500.
Embodiment 15:
Present embodiment is the improvement on embodiment tetradecyl plinth, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 34 and Figure 35, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 37 are set on this elastic insulating layer, this elasticity window is that open loop shape window is (referring to Figure 35, this window is not a complete ring-type, the lateral plan of window is c-shaped), the width of window is the 0.2-1 millimeter, a plurality of open loop shape windows are provided with along detecting conductor is vertically equidistant.The density that is provided with can be every meter 1-500.
Embodiment 16:
Present embodiment is the improvement on embodiment tetradecyl plinth, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 36 and Figure 37, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 38 are set on this elastic insulating layer, and this elasticity window is the annular window, and the axis oblique of this annular window and detecting conductor is provided with, the width of window is the 0.2-1 millimeter, and a plurality of annular windows are provided with along detecting conductor is vertically equidistant.The density that is provided with can be every meter 1-500.
Embodiment 17:
Present embodiment is the improvement on embodiment hexadecyl plinth, and in the present embodiment, a detecting conductor is a memory alloy wire, and another detecting conductor is conventional tinsel.Referring to Figure 38 and Figure 39, structure for the ease of expression elasticity window, this figure has only shown a detecting conductor 27, coat elastic insulating layer 28 on this detecting conductor, a plurality of elasticity windows 39 are set on this elastic insulating layer, and this elasticity window is an open loop shape window, and the axis oblique of this open loop shape window and detecting conductor is provided with, the width of window is the 0.2-1 millimeter, and a plurality of annular windows are provided with along detecting conductor is vertically equidistant.The density that is provided with can be every meter 1-500.
Elasticity window on the elastic insulating layer in the utility model can obtain with the following method:
Mechanical system: earlier elastic insulating layer is coated on the detecting conductor, by mechanical means opening thereon;
High temperature open: under the austenite end of a period phase transition temperature of memory alloy wire, utilize the strain of memory alloy wire, on the elastic insulating layer that softens or melt, melt opening;
Mould openings: when elastic insulating layer coats detecting conductor, utilize coating mould in advance in the elastic insulating layer upper shed.In addition, can also adopt multiple opening mode, not be described in detail.