CN201772945U - Wire holder and shockproof thermal resistor using same - Google Patents
Wire holder and shockproof thermal resistor using same Download PDFInfo
- Publication number
- CN201772945U CN201772945U CN2010205168612U CN201020516861U CN201772945U CN 201772945 U CN201772945 U CN 201772945U CN 2010205168612 U CN2010205168612 U CN 2010205168612U CN 201020516861 U CN201020516861 U CN 201020516861U CN 201772945 U CN201772945 U CN 201772945U
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- shell
- thermal resistance
- lead
- binding post
- opening
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Abstract
The utility model relates to a wire holder, comprising a shell, and a metal dishing spring and a metal wiring post contained and buckled in the shell, wherein the wiring post has a fixing end extending out of the shell downwardly and a terminal extending to press against the inner wall of the shell upwardly; the dishing spring has a push part buckled with the terminal of the wiring post and a shrapnel part extending from the push part and along the inner wall of the shell; a first opening and a second opening respectively exposed from the shrapnel part and push part of the dishing spring and the are disposed on the shell. The utility model further relates to a thermal resistor using the wire holder, wherein a wiring board in a terminal box is provided with at least one wire holder; lead wires of a thermometric element and leads introduced from external part can be inserted into the shell from the first opening of the wire holder and clamped between the shrapnel part and the inner wall of the shell to realize electric connection. The elastic force of the dishing spring shrapnel can buffer the external vibration, so the wiring of the utility model is not separated by vibration, fast wiring and stable and reliable connection are realized.
Description
Technical field
The utility model relates to thermal resistance, more particularly, relates to a kind of quick connection thermal resistance.
Background technology
In industrial thermometric environment, because the high rotating speed of commercial unit, vibrations have caused very big influence to reliable contact of thermal resistance to the high frequency short arc that high flow rate produced of equipment medium with the low frequency high amplitude.Of this sort environmental working condition is abominable, and vibration is frequent, and the connection type of conventional thermal resistance is difficult to satisfy on-the-spot requirement.Because the on-the-spot conventional mode of connection mostly is screw crimping or soldering welding greatly, adopt the thermal resistance of this mode of connection not do aseismatic design at site environment, can there be phenomenons such as screw gets loose, solder joint collapse in operation a period of time, and these all are to cause the insecure factor of thermometric.Therefore good thermal resistance is applied in this operating mode to be badly in need of a kind of shockproof effect.
The utility model content
The technical problems to be solved in the utility model is that the above-mentioned defective at the existing thermal resistance mode of connection provides a kind of shockproof thermal resistance and junction block thereof.
The technical scheme that its technical matters that solves the utility model adopts is: propose a kind of thermal resistance; comprise terminal box; set bolt; protection tube; and the temperature element that is encapsulated in described protection tube head; be provided with terminal block in the described terminal box and be electrically connected the lead-in wire of temperature element and the lead of introducing from the outside; described terminal block comprises the fixed head and the insulating base of connection fixed to one another; described fixed head is provided with at least one junction block; described junction block comprises shell; and ccontaining and metal disk spring and the metal connection post of spiral-lock in described shell; described binding post has the stiff end that extends shell downwards and weld with fixed head; with extend upward the terminals that prop up outer casing inner wall; described disk spring has pushing portion that the terminals with binding post are interlockingly connected and from described pushing portion along shell fragment portion that described outer casing inner wall extends; be formed with the shell fragment portion of exposing described butterfly spring respectively and first opening and second opening of pushing portion on the described shell, the lead-in wire of temperature element and the lead of introducing from the outside insert described shell and are clamped in from described first opening to be realized between described shell fragment portion and the described outer casing inner wall being electrically connected.
In the above-mentioned thermal resistance, the stiff end of described binding post is fixing to lower surface and welding from the upper surface break-through of fixed head.
In the specific embodiment, the stiff end that extends shell downwards of described binding post is two.
In the above-mentioned thermal resistance, described fixed head is connected by screw retention with described insulcrete.
In the above-mentioned thermal resistance, described fixed head is provided with a plurality of junction blocks, and its quantity is corresponding to the radical of temperature element lead-in wire.
In the above-mentioned thermal resistance, described shell is a plastic shell.
In the above-mentioned thermal resistance, the lead leading-in end of described terminal box is provided with cable jacket.
Another technical scheme that its technical matters that solves the utility model adopts is: propose a kind of junction block, be used for the electrical connection of lead, described junction block comprises shell, and ccontaining and metal disk spring and the metal connection post of spiral-lock in described shell, described binding post has the stiff end that extends shell downwards and extends upward the terminals that prop up outer casing inner wall, described disk spring have pushing portion that the terminals with binding post are interlockingly connected and from described pushing portion along the shell fragment portion that described outer casing inner wall extends, be formed with the shell fragment portion of exposing described butterfly spring respectively and first opening and second opening of pushing portion on the described shell.
In the above-mentioned junction block, the stiff end that extends shell downwards of described binding post is two.
In the above-mentioned junction block, described shell is a plastic shell.
The thermal resistance of the shockproof junction block of employing of the present utility model has following beneficial effect:
1, this thermal resistance adopts disk spring, utilizes the elastic force clamping lead of shell fragment portion, can realize the fast insert-pull of temperature element lead-in wire and outer lead, and wiring speeds up, and connects reliable.
2, disk spring has that rigidity is big, the strong characteristics of buffering vibration absorption ability, can bear big load with small deformation and little space, thereby cushions vibrations in the bad working environments environment by disk spring, can prolong the serviceable life of thermal resistance, increases economic efficiency.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the one-piece construction synoptic diagram according to the thermal resistance of an embodiment of the utility model;
Fig. 2 is the structure cut-open view of terminal block among Fig. 1;
Fig. 3 is the side view of junction block among Fig. 2.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, mainly form according to the thermal resistance of an embodiment of the utility model by terminal box 40, set bolt 20, protection tube 10 and the temperature element protection tube 10 that is encapsulated in described protection tube head.Be provided with terminal block 30 in the terminal box 10, be used to realize the lead-in wire of temperature element and the electrical connection of the lead introduced from the outside.About the concrete structure of terminal block 30 will provide more detailed introduction in conjunction with Fig. 2 and Fig. 3 follow-up.Terminal box 10 is fixedlyed connected with set bolt 20 in the horizontal direction, and the outer lead leading-in end of in the vertical direction also is provided with cable jacket 50.This cable jacket 50 can be the metallic cable chuck, has cable and compresses O-ring seal, realizes the IP67 sealing of thermal resistance.When the lead disturbance of rear end, but the vibration transfer of avoiding of cable jacket 50 maximum possible arrives the back panel wiring of thermal resistance 10.
Set bolt 20 is a thermal resistance process type of attachment, and its placed-depth according to thermal resistance is welded on the protection tube 10, and effect is that thermal resistance is installed on the equipment according to certain placed-depth.
Fig. 2 is the structural representation according to the terminal block in the thermal resistance of the utility model embodiment 30.As shown in Figure 2, terminal block 30 comprises insulating base 31 and fixed head 32, and the two can be fixedly connected by existing variety of ways such as for example screws.And correspondence is provided with through hole 37 on insulating base 31 and the fixed head 32, so that the temperature element lead-in wire is drawn from through hole 37 from the bottom to top, is plugged in the junction block 33 that is provided with on the fixed head 32.
As shown in Figure 2, the radical corresponding to the temperature element lead-in wire can be provided with at least one junction block 33 on the fixed head 32.For example, the temperature element lead-in wire is three usually, thereby on the fixed head 32 three junction blocks 33 can be set symmetrically, to realize the electrical connection of lead-in wire.Specifically as shown in Figure 2, each junction block 33 is formed by shell 34 encapsulation, metal disk spring 35 and metal connection post 36 by ccontaining and spiral-lock in shell 34.Binding post 36 has two stiff ends 361 that extend shell 34 downwards, also has to extend upward the terminals 362 that prop up shell 34 inwalls.After the stiff end 361 of binding post 36 stretched out shell 34, the corresponding mounting hole that is provided with extended to the lower surface of fixed head 32 on fixed head 32, welded with fixed head 32 lower surfaces by modes such as soldering or wave-solderings then and fixed.It is close-shaped that disk spring 35 roughly becomes, and has terminals 362 snappings of a pushing portion 351 and binding post 36, and tightly extend a shell fragment portion 352 along the inwalls of shell 34 from described pushing portion 351.When external force acted on the pushing portion 351 of disk spring 35, disk spring 35 was to lower compression, made to form interface between the shell fragment portion 352 of disk spring 35 and shell 34 inwalls, so that lead inserts.
Further as shown in Figure 3, shell 34 offers on the adjacent side 341 of the pushing portion 351 of itself and disk spring 35 and shell fragment portion 352 and connects shell 34 inside and outside first opening 39 (being connection jaws) and second opening 38 (being that spring is pressed mouth).Wherein, first opening 39 corresponding to the position of disk spring shell fragment portion 352 with expose shell fragment portion 352, the second openings 38 corresponding to the position of disk spring pushing portion 351 to expose pushing portion 352.
This thermal resistance is when carrying out wiring, releases cable chuck 50, outer lead is pierced into terminal box 30, use instrument (for example straight screwdriver) to go deep in the shell then along second opening 38 on the shell 34 of junction block 33, the disk spring pushing portion 351 of pushing correspondence position, make disk spring 35 to lower compression, between shell fragment portion 352 and outer casing inner wall, just form connection jaws, at this moment lead is inserted in the connection jaws that forms from first opening 39 on the shell 34, then straight screwdriver is extracted, promptly unclamped pushing force, 352 resiliences of shell fragment portion disk spring pushing portion 351, lead just is clamped between shell fragment portion 352 and the outer casing inner wall, realizes reliably connecting.Because the elastic force of shell fragment portion 352 can cushion external shock, thereby this mode of connection can not realize fast-wiring and connect reliable and stable because of vibrations break away from.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. thermal resistance; comprise terminal box; set bolt; protection tube; and the temperature element that is encapsulated in described protection tube head; be provided with terminal block in the described terminal box and be electrically connected the lead-in wire of temperature element and the lead of introducing from the outside; it is characterized in that; described terminal block comprises the fixed head and the insulating base of connection fixed to one another; described fixed head is provided with at least one junction block; described junction block comprises shell; and ccontaining and metal disk spring and the metal connection post of spiral-lock in described shell; described binding post has the stiff end that extends shell downwards and weld with fixed head; with extend upward the terminals that prop up outer casing inner wall; described disk spring has pushing portion that the terminals with binding post are interlockingly connected and from described pushing portion along shell fragment portion that described outer casing inner wall extends; be formed with the shell fragment portion of exposing described butterfly spring respectively and first opening and second opening of pushing portion on the described shell, the lead-in wire of temperature element and the lead of introducing from the outside insert described shell and are clamped in from described first opening to be realized between described shell fragment portion and the described outer casing inner wall being electrically connected.
2. thermal resistance according to claim 1 is characterized in that, the stiff end of described binding post is fixing to lower surface and welding from the upper surface break-through of fixed head.
3. thermal resistance according to claim 2 is characterized in that, the stiff end that extends shell downwards of described binding post is two.
4. thermal resistance according to claim 1 is characterized in that, described fixed head is connected by screw retention with described insulcrete.
5. thermal resistance according to claim 1 is characterized in that described fixed head is provided with a plurality of junction blocks, and its quantity is corresponding to the radical of temperature element lead-in wire.
6. thermal resistance according to claim 1 is characterized in that, described shell is a plastic shell.
7. thermal resistance according to claim 1 is characterized in that, the lead leading-in end of described terminal box is provided with cable jacket.
8. junction block, be used for the electrical connection of lead, it is characterized in that, described junction block comprises shell and ccontaining and metal disk spring and the metal connection post of spiral-lock in described shell, described binding post has the stiff end that extends shell downwards and extends upward the terminals that prop up outer casing inner wall, described disk spring have pushing portion that the terminals with binding post are interlockingly connected and from described pushing portion along the shell fragment portion that described outer casing inner wall extends, be formed with the shell fragment portion of exposing described butterfly spring respectively and first opening and second opening of pushing portion on the described shell.
9. junction block according to claim 8 is characterized in that, the stiff end that extends shell downwards of described binding post is two.
10. junction block according to claim 8 is characterized in that, described shell is a plastic shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205168612U CN201772945U (en) | 2010-09-03 | 2010-09-03 | Wire holder and shockproof thermal resistor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205168612U CN201772945U (en) | 2010-09-03 | 2010-09-03 | Wire holder and shockproof thermal resistor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772945U true CN201772945U (en) | 2011-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205168612U Expired - Fee Related CN201772945U (en) | 2010-09-03 | 2010-09-03 | Wire holder and shockproof thermal resistor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974869A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of metal outer wall temperature measurement device |
-
2010
- 2010-09-03 CN CN2010205168612U patent/CN201772945U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974869A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of metal outer wall temperature measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130903 |