CN108917969A - A kind of temperature element and its assemble method with more resistive elements - Google Patents
A kind of temperature element and its assemble method with more resistive elements Download PDFInfo
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- CN108917969A CN108917969A CN201810830318.0A CN201810830318A CN108917969A CN 108917969 A CN108917969 A CN 108917969A CN 201810830318 A CN201810830318 A CN 201810830318A CN 108917969 A CN108917969 A CN 108917969A
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- resistive element
- casing
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- tube body
- platinum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses temperature elements and its assemble method that a kind has more resistive elements, temperature element includes terminal box, terminal plate is fixed in terminal box, terminal plate one end is parallel with several platinum resistive elements, platinum resistive element is distributed along connecting tube and casing, on the inner wall for the casing that part of each platinum resistive element in casing is attached to casing, assemble method is S1, selection resistive element and casing；S2, resistive element is inserted into casing respectively；S3, fixed sleeving.The present invention can accurately detect the temperature of local environment, improve the accuracy of temperature detection, and ensure that temperature element has the continuity of longer work.
Description
Technical field
The present invention relates to a kind of temperature detection technology, in particular to a kind of temperature element and its group with more resistive elements
Dress method.
Background technique
Thermal resistance is widely used in temperature detection field as temperature-sensitive element.Under normal conditions, a temperature sensing
Device only includes a resistive element.Thermal resistance sensor in use, thermal resistance usually all be load a casing inside, by
It is all greater than resistance thermometer clement under normal conditions in the internal diameter of casing, thus between will generating between resistive element and casing
Gap causes detection accuracy relatively low, to influence heat to influence the heat transfer efficiency of external environment and thermal resistance sensor
The use of electric resistance sensor, and in subsequent maintenance, the thermal resistance sensor more renewed needs to expend the more time, no
Conducive to lasting detection.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of temperature element with more resistive elements and its assemblings
Method, which can accurately detect the temperature of local environment, improve the accuracy of temperature detection, and ensure that
Temperature element has the continuity of longer work.
To achieve the goals above, the present invention provides following technical scheme：A kind of temperature element with more resistive elements,
Including terminal box, the terminal plate for connecting resistance unit, the bottom of terminal box are fixedly installed in the box body of the terminal box
It is fixedly installed with a connecting tube by cheese head screw, the connecting tube has set by flanged joint far from one end of cheese head screw
Pipe, the side of the terminal box are connected with electric conversion connector, the electric conversion connector and are located on the terminal box periphery
Wire barrel connection, the electric conversion connector connect by passing through wire barrel with one end of the terminal plate, terminal plate it is another
One end is parallel with several platinum resistive elements, and the platinum resistive element is distributed along connecting tube and casing, and described sleeve pipe is close to even
One end of adapter tube is equipped with the channel for platinum resistive element insertion, and the other end of casing is equipped with the end cap for sealing casing, institute
The end thread for stating end cap and casing connects, and part of each platinum resistive element in casing is attached to the casing of casing
On inner wall.
Preferably, casing includes tube body and lock pin, and the top of the lock pin is equipped with a circle clinch, sets at the top of tube body
There is the step with clinch cooperation, the side wall of the step is equipped with circumferentially arranged with several first grooves, the axis of the first groove
The axis of tube body is parallel, and if the clinch be equipped with dry passage, the axis in the channel is overlapped with the axis of the first groove, institute
It states and is equipped with the second groove that platinum resistive element interts between lock pin and the inner wall of tube body, the second groove is distributed along the axial direction of lock pin,
Second groove, the first groove, the quantity in channel are consistent with the quantity of platinum resistive element.
Preferably, the second groove is evenly distributed on lock pin, and the first groove is evenly distributed on the circumference of step, is led to
Road is evenly distributed on clinch.
Preferably, several shallow slots also are provided on the inner wall of tube body, the shallow slot and the second groove correspond, shallow slot and phase
The the second groove fitting answered constitutes a complete circumference, and the diameter phase of the diameter of the circumference and the platinum resistive element
Together.
Preferably, flange includes first flange and second flange, and the bottom of the first flange and connecting tube is linked as one
It is linked together at the top of body, second flange and tube body.
Preferably, it is flushed at the top of the top of clinch and second flange.
Preferably, the center on the inner face of end cap is equipped with the collection beam hole being distributed along axis, collects beam hole and pipe
Body is arranged concentrically, and the internal diameter for collecting beam hole is less than the internal diameter of tube body.
Preferably, lock pin and end cap are that heat-insulating material is made.
The invention also discloses a kind of assemble methods of thermal resistance sensor with more resistive elements, including following step
Suddenly：
S1, according to actual needs, determines the quantity of required platinum resistive element, and take corresponding casing；
S2, platinum resistive element is sequentially passed through to the channel on clinch；
S3, the end that platinum resistive element is caught hold of from the bottom of tube body, the platinum resistive element tension for passing through clinch is exceptionally straight, and
Against each platinum resistive element with the shallow slot on inboard wall of tube body；
S4, lock pin is injected in tube body, and forms the second groove of lock pin and corresponding shallow slot and cooperates, so that platinum resistive element quilt
It is coated in the second groove and shallow slot；
S5, it first flange is connect with second flange tightens up；
If the length of S6, tube body is less than the length of platinum resistive element, the end of each platinum resistive element is put into collection beam hole
It is interior, then tighten end cap；If the length of platinum resistive element is less than or equal to the length of tube body, end cap is directly tightened.
By adopting the above technical scheme, the present invention is connected in parallel to several platinum resistive elements on connecting plate, when wherein one
When root platinum resistive element damages, remaining platinum resistive element still is able to normal use, no replacement is required hot temperature element, to make
Temperature element in the Acceptable life of platinum resistive element can continual work, improve the continuous of temperature detection
Property.Meanwhile the present invention increases each platinum resistive element by the way that each platinum resistive element is attached to the mode on the inner wall of casing
With the contact area of internal surface of sleeve pipe, being effectively prevented between resistive element and internal surface of sleeve pipe has the problem of gap, improves
Detection accuracy.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of tube body of the invention；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the portion the B enlarged drawing of Fig. 2；
Fig. 5 is the structural schematic diagram of lock pin of the invention；
Fig. 6 is the C-C cross-sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of collection column of the invention；
Fig. 8 is the structural schematic diagram of locating ring of the invention.
Specific embodiment
With reference to the accompanying drawing, by the description of the embodiment, the present invention will be further described.
As shown in Figure 1, the invention discloses a kind of temperature element with more resistive elements, including terminal box 1, terminal box
The terminal plate for connecting resistance unit is fixedly installed in 1 box body, the bottom of terminal box 1 passes through the fixed peace of cheese head screw 2
Equipped with a connecting tube 3, the one end of connecting tube 3 far from cheese head screw 2 is connected with casing 5, the side of terminal box 1 by flange 4
It is connected with electric conversion connector 6, electric conversion connector 6 is connect with the wire barrel being located on 1 periphery of terminal box, electric conversion connector
6 are connected by passing through one end of wire barrel and terminal plate, and the other end of terminal plate is parallel with 3 platinum resistive elements 7, platinum resistance member
The quantity of part 7 is at least two, but its quantity is also unsuitable excessive, should be depending on the specific size of terminal plate, usually not
More than 5.Platinum resistive element 7 is distributed along connecting tube 3 and casing 5, and casing 5 is equipped with close to one end of connecting tube 3 for platinum electricity
The channel 506 that resistance element 7 is inserted into, the other end of casing 5 are equipped with the end cap 8 for sealing casing 5, the end of end cap 8 and casing 5
It is threadedly coupled, each platinum resistive element 7 is on the inner wall of casing 5 that the part in casing 5 is attached to casing 5.Lock pin 502 and
End cap 8 is that heat-insulating material is made.
As shown in Fig. 2 ~ 6, casing 5 of the invention includes tube body 501 and lock pin 502, and the top of lock pin 502 is equipped with a circle
Clinch 503, with the round block of through-hole centered on clinch 503, clinch 503 and the top of lock pin 502 are linked together
Setting, the top of tube body 501 are equipped with the step 504 cooperated with clinch 503, and the side wall of step 504 is equipped with circumferentially arranged with 3
The axis of first groove 505, the axis tube body 501 of the first groove 505 is parallel, and the first groove 505 is uniform along the side wall of step 504
It is distributed, i.e., the angle between two adjacent the first grooves 505 is 120 °.Channel 506 is located on clinch 503, channel 506
Axis is overlapped with the axis of the first groove 505, i.e. the bottom in channel 506 and the top of the first groove 505 is docking together, the two
Cooperation, enables platinum resistive element 7 to be smoothly inserted into the inside of casing 5.It is equipped between lock pin 502 and the inner wall of tube body 501
The second interspersed groove 507 of platinum resistive element 7, the second groove 507 is distributed along the axial direction of lock pin 502, and the second groove 507 is also equal
Even is distributed on the core of lock pin 502, i.e., the angle between every two adjacent the second grooves 507 is 120 °.
The inner wall of tube body 501 is equipped with 3 shallow slots 508, and shallow slot 508 and the second groove 505 correspond, shallow slot 508 and
The corresponding fitting of second groove 505 constitutes a complete circumference, and the diameter phase of the diameter of the circumference and platinum resistive element 7
Together, the top of shallow slot 508 is docked with the bottom of the first groove 505, and the taking by lock pin 502 in order to avoid platinum resistive element 7
Socket part 503 is pushed down, and the first groove 505 is distributed in arc-shaped from the top down, and its circular arc is 1/4 circular arc.
The present invention, can be uniform in the bottom of lock pin 502 in order to guarantee that lock pin 502 is accurately inserted into tube body 501
Fixed upper 3 positioning steel discs 509, positioning steel disc 509 is exactly two 507 positions in the middle of the second groove, correspondingly, tube body
501 inner wall opens up 3 locating slots 510 cooperated with positioning steel disc 509 along axial direction, and locating slot 510, positioning steel disc 509 are distinguished
It is formed and is misplaced with shallow slot 508, the second groove 505, is independent of each other.When being inserted into lock pin 502, first positioning steel disc 509 is injected and is determined
The top position of position slot 510, then pressing down on can be such that lock pin 502 is accurately inserted into tube body 501.
Flange 4 of the invention includes first flange 401 and second flange 402, the bottom of first flange 401 and connecting tube 3
Portion is linked together, and second flange 402 and the top of tube body 501 are linked together, after assembling, first flange 401 and the second method
It is tightened together between orchid 402 by bolt and nut component.And the phenomenon that lock pin 502 shakes along axial direction in order to prevent,
Flush the top of clinch 503 and the top of second flange 402.It is of course also possible in the top fastening anti-slip of clinch 503
Pad, causes to wear to prevent the top of clinch 503 from directly contacting with the end of first flange 401.
As shown in Fig. 2, the center on the inner face of end cap 8 is equipped with the collection beam hole 801 being distributed along axis, beam is collected
Hole 801 is arranged concentrically with tube body 501, and the internal diameter for collecting beam hole 801 is less than the internal diameter of tube body 801.In order to guarantee platinum resistive element 7
End collect beam hole 801 in the uniformity, prevent the end of each platinum resistive element 7 from interfering with each other, can collect beam hole
Setting collects the mode of column 802 to collect the end of platinum resistive element 7 in 801.Specifically, at the center of the bottom of lock pin 502
Position opens up a blind hole 803, collects in one end insertion blind hole 803 of column 802, as shown in fig. 7, collecting column 802 exposes blind hole
The outer wall of 803 part is equipped with third groove 804, and in assembled formation, third groove 804 should be right with the second groove 507
Together, then the end of platinum resistive element 7 is being pressed in third groove 804 by a locating ring 805, third groove 804
The diameter of depth and platinum resistive element 7 is adapted, to prevent locating ring 805 from causing to oppress to platinum resistive element 7.As shown in figure 8,
There are three the steel ball 806 that can be freely rotated, steel balls 806 to be uniformly along the circumferential direction distributed for the innermost insert of locating ring 805, steel
Pearl 806 is squeezed in inlaid hole by spring 807, and the location hole 808 cooperated with steel ball 806, positioning are equipped on collecting column 802
Circle 805 passes through the cooperation of steel ball 806 and location hole 808, realizes positioning.
The present invention, can be by fixed round end for the ease of selecting the angle between terminal box 1 and casing 5 according to actual needs
The connector 201 of nut 2 is hinged on the end of terminal box 1, and by the end of all platinum resistive elements 7 in connector 201
After parallel connection is good, then passes through another section lead and connect with terminal plate, the length of the section lead should meet connector 201 and carry out back rotation
Demand.Specifically, as shown in Figure 1, the articulating head of connector 201 protrudes into the inner end portion of terminal box 1, and pass through a hinge
Spindle 202 is rotatablely connected, and connector 201 protrudes into the part inside terminal box 1 in semicircle shape, and protrudes into and connect in connector 201
The monosymmetric of part inside wire box 1 is fixed with a pair of of fastening pin shaft 203, and the side wall of terminal box 1 is equipped with for fastening
Pin shaft 203 is pierced by the binding groove 204 of terminal box 1, and fastening pin shaft 203 is pierced by binding groove 204, and fastens pin shaft 203 and be pierced by tightly
Gu the end of slot 204 is compressed by clamp nut and is fastened.Meanwhile personnel operate for ease of operation, it can be in the slot of binding groove 204
While the scale of angle is engraved, in order to intuitively observe the angle between casing 5 and terminal box 1.
It is between other Connecting quantities and connecting plate and platinum resistive element 7 between steel ball 806 and locating ring 805 and
Join circuit, is all the conventional design of this field, details are not described herein.
Temperature element with more resistive elements of the invention during installation, first has to assemble sensor, group
Dress method includes the following steps：
S1, according to actual needs, determines the quantity of required platinum resistive element 7, and take corresponding casing 5；
S2, platinum resistive element 7 is sequentially passed through to the channel 506 on clinch 503；
S3, the end that platinum resistive element 7 is caught hold of from the bottom of tube body 501, the platinum resistive element 7 for passing through clinch 503 are drawn
It is tight straight, and against each platinum resistive element 7 with the shallow slot 508 on 501 inner wall of tube body；
S4, the top that will position the insertion locating slot 510 of steel disc 509 prepare for be inserted into tube body 501 lock pin 502；
S5, lock pin 502 is injected in tube body 501, and forms the second groove 505 of lock pin 502 with corresponding shallow slot 508 and cooperates,
So that platinum resistive element 7 is covered by the second groove 505 and shallow slot 508；
S6, it first flange 401 is connect with second flange 402 tightens up；
If the length of S7, tube body 501 is less than the length of platinum resistive element 7, the end of each platinum resistive element 7 is put into collection
In beam hole 801, end cap 8 is then tightened；If the length of platinum resistive element 7 is less than or equal to the length of tube body 501, directly tighten
End cap 8.
When collecting the end of platinum resistive element 7, column 802 will be collected first and will be inserted into blind hole 803, then by each platinum electricity
The end of resistance element 7 is individually placed in corresponding third groove 804, then puts on locating ring 805 on collection column 802, fixed
End cap 8, is finally screwed in the screw top of tube body 501 by the firmly end of each platinum resistive element 7.It should be pointed out that collecting
The length that column 802 exposes the part of blind hole 803 should be less than or equal to the depth for collecting beam hole 801, and locating ring 805 is outer
Diameter and the internal diameter for collecting beam hole 801 are adapted.
The present invention is connected in parallel to 3 platinum resistive elements 7 on connecting plate, when wherein a platinum resistive element 7 damages,
Remaining platinum resistive element 7 still is able to normal use, no replacement is required temperature element, so that temperature element is in platinum resistance member
In the Acceptable life of part 7 can continual work, improve the continuity of temperature detection.Meanwhile the present invention passes through
Each platinum resistive element 7 is attached to the mode on the inner wall of casing 5, increases connecing for each platinum resistive element 7 and 5 inner wall of casing
Contacting surface product, being effectively prevented between 5 inner wall of resistive element and casing has the problem of gap, improves detection accuracy.This hair
Bright assemble method, it is convenient and efficient, and all parts can be removed after assembling, it is conveniently replaceable maintenance.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (9)
1. a kind of temperature element with more resistive elements, including terminal box（1）, the terminal box（1）Box body in fixed peace
Equipped with the terminal plate for connecting resistance unit, terminal box（1）Bottom pass through cheese head screw（2）It is fixedly installed with a connection
Pipe（3）, the connecting tube（3）Far from cheese head screw（2）One end pass through flange（4）It is connected with casing（5）, the terminal box
（1）Side be connected with electric conversion connector（6）, the electric conversion connector（6）Be located at the terminal box（1）On periphery
Wire barrel connection, the electric conversion connector（6）Connect by passing through wire barrel with one end of the terminal plate, terminal plate it is another
One end is parallel with several platinum resistive elements（7）, the platinum resistive element（7）Along connecting tube（3）And casing（5）Distribution,
It is characterized in that：Described sleeve pipe（5）Close to connecting tube（3）One end be equipped be used for platinum resistive element（7）The channel of insertion（506）,
Casing（5）The other end be equipped with for sealing casing（5）End cap（8）, the end cap（8）With casing（5）End thread connect
It connects, each platinum resistive element（7）In casing（5）Interior part is attached to casing（5）Casing（5）Inner wall on.
2. the temperature element according to claim 1 with more resistive elements, it is characterised in that：Described sleeve pipe（5）Including
Tube body（501）And lock pin（502）, the lock pin（502）Top be equipped with one circle clinch（503）, tube body（501）Top
It is equipped with and clinch（503）The step of cooperation（504）, the step（504）Side wall be equipped with circumferentially arranged with several first it is recessed
Slot（505）, the first groove（505）Axis tube body（501）Axis it is parallel, and the clinch（503）If equipped with dry passage
（506）, the channel（506）Axis and the first groove（505）Axis be overlapped, the lock pin（502）With tube body（501）'s
Platinum resistive element is equipped between inner wall（7）The second interspersed groove（507）, the second groove（507）Along lock pin（502）Axial direction point
Cloth, second groove（507）, the first groove（505）, channel（506）Quantity and platinum resistive element（7）Quantity one
It causes.
3. the temperature element according to claim 2 with more resistive elements, it is characterised in that：Second groove
（507）It is evenly distributed in lock pin（502）On, the first groove（505）It is evenly distributed in step（504）Circumference on, channel
（506）It is evenly distributed in clinch（503）On.
4. the temperature element according to claim 3 with more resistive elements, it is characterised in that：The tube body（501）'s
Several shallow slots also are provided on inner wall（508）, the shallow slot（508）With the second groove（505）It corresponds, shallow slot（508）With phase
The second groove answered（505）Fitting constitutes a complete circumference, and the diameter of the circumference and the platinum resistive element（7）'s
Diameter is identical.
5. the temperature element according to claim 4 with more resistive elements, it is characterised in that：The flange（4）Including
First flange（401）And second flange（402）, the first flange（401）With connecting tube（3）Bottom be linked together,
Two flanges（402）With tube body（501）Top be linked together.
6. the temperature element according to claim 5 with more resistive elements, it is characterised in that：The clinch（503）
Top and second flange（402）Top flush.
7. the temperature element according to claim 6 with more resistive elements, it is characterised in that：The end cap（8）It is interior
Center on end face is equipped with the collection beam hole being distributed along axis（801）, collect beam hole（801）With tube body（501）It sets with one heart
It sets, the collection beam hole（801）Internal diameter be less than tube body（801）Internal diameter.
8. the temperature element according to claim 7 with more resistive elements, it is characterised in that：The lock pin（502）With
And end cap（8）It is that heat-insulating material is made.
9. a kind of assemble method of the temperature element with more resistive elements as claimed in claim 8, which is characterized in that including
Following steps：
S1, according to actual needs, determines required platinum resistive element（7）Quantity, and take corresponding casing（5）；
S2, by platinum resistive element（7）It sequentially passes through and is located at clinch（503）On channel（506）；
S3, from tube body（501）Bottom at catch hold of platinum resistive element（7）End, pass through clinch（503）Platinum resistance member
Part（7）It tenses exceptionally straight, and makes each platinum resistive element（7）With tube body（501）Shallow slot on inner wall（508）It againsts；
S4, by lock pin（502）Inject tube body（501）It is interior, and make lock pin（502）The second groove（505）With corresponding shallow slot（508）
Cooperation is formed, so that platinum resistive element（7）It is covered by the second groove（505）With shallow slot（508）It is interior；
S5, by first flange（401）With second flange（402）Connection tightens up；
If S6, tube body（501）Length be less than platinum resistive element（7）Length, then by each platinum resistive element（7）End put
Enter to collect beam hole（801）It is interior, then tighten end cap（8）；If platinum resistive element（7）Length be less than or equal to tube body（501）'s
Length then directly tightens end cap（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830318.0A CN108917969A (en) | 2018-07-26 | 2018-07-26 | A kind of temperature element and its assemble method with more resistive elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830318.0A CN108917969A (en) | 2018-07-26 | 2018-07-26 | A kind of temperature element and its assemble method with more resistive elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108917969A true CN108917969A (en) | 2018-11-30 |
Family
ID=64416915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810830318.0A Withdrawn CN108917969A (en) | 2018-07-26 | 2018-07-26 | A kind of temperature element and its assemble method with more resistive elements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108917969A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443569A (en) * | 2018-12-18 | 2019-03-08 | 海盐县秦山热工仪表厂 | A kind of magnetic force adsorption type temperature thermocouple |
-
2018
- 2018-07-26 CN CN201810830318.0A patent/CN108917969A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443569A (en) * | 2018-12-18 | 2019-03-08 | 海盐县秦山热工仪表厂 | A kind of magnetic force adsorption type temperature thermocouple |
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Application publication date: 20181130 |