CN204332825U - Temperature relay - Google Patents
Temperature relay Download PDFInfo
- Publication number
- CN204332825U CN204332825U CN201420673526.1U CN201420673526U CN204332825U CN 204332825 U CN204332825 U CN 204332825U CN 201420673526 U CN201420673526 U CN 201420673526U CN 204332825 U CN204332825 U CN 204332825U
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- CN
- China
- Prior art keywords
- temperature
- thermal protector
- measuring casing
- cable
- temperature relay
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides temperature relay, for bullet train traction motor over-heat inside temperature detecting.Temperature relay disclosed in the utility model, comprises, and thermal protector also comprises, temperature-measuring casing and conducting strip; Conducting strip is fixedly connected with the inwall of temperature-measuring casing, and thermal protector is arranged in the inner chamber of temperature-measuring casing, in this inner chamber, fill heat-conducting silicone grease.Solve existing temperature relay complex structure, parameter adjustment cannot be realized and reprocess, thus cause cost high, can not the problem of High-efficient Production.It can thus be appreciated that, the utility model have rational in infrastructure, be convenient to the low feature of production and processing, easy disassembly and cost.
Description
Technical field
The utility model relates to temperature and controls and hot electron element protection field, particularly a kind of temperature relay.
Background technology
Motor thermal protector is a kind of switch and the on-insulated temperature relay of shell of bi-metallic laminar kind.In disclosed patent of invention; disclose the temperature relay of the overheated detecting of a kind of bullet train traction motor; thermal protector is installed in the insulating sleeve in probe sleeve by it; and adding the lead-out wire of cable, probe sleeve is the brass sleeve pipe that thermal conductivity is good, intensity is higher.In this technology, there is the problem of thermo-lag in the thermal model figure of temperature relay, and, use brass probe sleeve can further increase the thermo-lag of temperature relay, cause the overheated detecting of temperature relay ineffective.
Above-mentioned patent adopts the method reducing probe sleeve diameter to reduce the thermal resistance of temperature-measuring casing and thermal protector; but because the diagonal of thermal protector exists; make that creepage distance between thermal protector and cylindrical shape diminishes, the heat conductive insulating sleeve pipe of dielectric strength opposite edges works long hours and crossing the requirement being difficult to meet high ferro 3500Vr.m.s. dielectric withstanding voltage under thermal environment; special in surge voltage motor applications environment frequently, add the possibility that temperature relay dielectric withstanding voltage lost efficacy.
Also there is baroque shortcoming in above-mentioned patent, its structural design does not meet production requirement, parameter adjustment cannot be realized and reprocess, and epoxy resin encapsulated is positioned over the link that relay order completes assembling, once complete epoxy resin encapsulated, relay is not reworkable, causes that percent defective is high, production cost is high thus, quality control difficulties in production process, is not suitable with the needs of High-efficient Production.Above-mentioned patent adopts rigidity to install, and particularly the exit of thermal protector is installed for the rigidity of encapsulating, and affect the thermal stress release of thermal protector when gradient of temperature, especially long-time high strength mechanical environment will cause thermal protector parameter and change in quality.
Utility model content
For above-mentioned defect of the prior art, temperature relay of the present utility model in use, solve rational in infrastructure, be convenient to the low feature of production and processing, easy disassembly and cost.
In order to achieve the above object, the utility model discloses temperature relay, comprise, thermal protector, also comprise, temperature-measuring casing and conducting strip; Described conducting strip is fixedly connected with the inwall of described temperature-measuring casing, and described thermal protector is arranged in the inner chamber of described temperature-measuring casing, in this inner chamber, fill heat-conducting silicone grease.
In a preferred embodiment, described temperature relay, also comprise, tail pipe fixed by holder housing and cable, described holder housing offers installation endoporus, the link of this installation endoporus and the opening of described temperature-measuring casing are tightly connected, and the cable of described thermal protector is stretched out from the exit of described installation endoporus, and described cable is fixed tail pipe and is fixedly connected with the opening of described exit;
In a preferred embodiment, the link of described installation endoporus is connected by Screw assembly with the opening of described temperature-measuring casing; The open-top screw thread assembly connection of tail pipe and described exit fixed by described cable;
In a preferred embodiment, sealing resin in the inner chamber of described installation endoporus, makes the cable of described thermal protector be fixed in described inner chamber;
In a preferred embodiment, described cable connects by being connected slotting spring with the exit of described thermal protector;
In a preferred embodiment, the inwall of described temperature-measuring casing offers thinning area groove, fills heat-conducting silicone grease in the groove of described thinning area;
In a preferred embodiment, the link of described installation endoporus is connected by Screw assembly with the opening of described temperature-measuring casing, and envelope screw thread glue is filled out in this junction;
In a preferred embodiment, the material of described holder housing is stainless steel material;
The beneficial effects of the utility model are:
The temperature relay of the utility model design is for bullet train application special requirement, carried out correct thermal design, temperature relay housing selects stainless steel material, there is not the hot matching problem between foreign material, and greatly reduce the heat load of point for measuring temperature, reduce the impact of thermo-lag; Holder housing adopts mutual vertical through-via structure, not only simplify processing, and also create condition for reducing holder housing thermal capacity, holder housing eliminates the spare volume irrelevant with installation strength, reduces setting height(from bottom); At temperature-measuring casing inner wall device insulating heat-conductive sheet, fill insulating heat conductive silicon grease between temperature-measuring casing and thermal protector, not only reduce the thermal resistance between temperature-measuring casing to thermal protector, also improve temperature relay dielectric withstanding voltage ability;
The utility model makes full use of material behavior and reaches hot property needed for temperature relay, need to have carried out rational design to temperature relay structure according to application, manufacture and quality of production process control, thermal protector suspends and installs, the damping action of insulating heat conductive silicon grease reduces the impact of mechanical environment on thermal protector stability, also reduces the possibility that thermal protector parameter is changed in quality; Devise holder housing and temperature-measuring casing screw connection structure; be connected slotting spring with thermal protector with the plug-in type of output cable conveniently to reprocess and parameter adjustment; when needs carry out parameter adjustment to temperature relay or reprocess; temperature-measuring casing can be dismantled from holder housing, parameter adjustment or replacing are implemented to thermal protector.
Accompanying drawing explanation
Fig. 1 is in a kind of execution mode of the utility model, the structural representation of temperature relay;
Fig. 2 is in a kind of execution mode of the utility model, thermal protector be connected slotting spring wire connection diagram;
Fig. 3 is in a kind of execution mode of the utility model, the cross-sectional view of thermal protector.
Embodiment
Below in conjunction with accompanying drawing, specific implementation process of the present utility model is described in detail.
As shown in FIG. 1 to 3, the temperature relay in a kind of execution mode of the present utility model, the thermal protector 4 comprising device in temperature relay housing, temperature relay housing and the cable 10 be connected with thermal protector 4 exit; Temperature relay housing is fixed tail pipe 3 formed by holder housing 1, temperature-measuring casing 2, cable, three is stainless steel, its conductive coefficient λ=16.2W/ (mk), 4% of copper material conductive coefficient λ=401W/ (mk), not only there is not the hot matching problem between foreign material, also greatly reduce the heat load of point for measuring temperature, reduce the impact of thermo-lag; The through installation endoporus of Relative vertical is offered in holder housing 1, the two ends of installation endoporus are also fixed between tail pipe 3 with temperature-measuring casing 2 and cable respectively with internal thread respectively and are threaded, the end of thread of temperature-measuring casing 2 also smears screw thread glue, and be fixed on the bottom of temperature relay housing, the top that tail pipe 3 is fixed on temperature relay housing fixed by corresponding cable, is fixedly connected with holder housing 1.
Conducting strip 7 is fixedly connected with the inwall of temperature-measuring casing 2, and thermal protector 4 is arranged in the inner chamber of temperature-measuring casing 2, fills heat-conducting silicone grease 8 in this inner chamber.Wherein, conductive coefficient λ=0.95 ~ the 6.0W/ (mk) of insulating heat conductive silicon grease 8, it is 41 ~ 260 times of air conduction coefficient lambda=0.023W/ (mk), not only reduce the thermal resistance between temperature-measuring casing cylinder to thermal protector, also improve temperature relay dielectric withstanding voltage ability; Thermal protector 4 is suspended in guide rail silicone grease 8, reduces the impact of mechanical environment on thermal protector 4 stability; For reducing the thermal resistance of temperature-measuring casing 2 further, offering thinning area groove 21 at the inwall of temperature-measuring casing 2, between the inwall of thinning area groove 21 and conducting strip 7, being filled with heat-conducting silicone grease 8.
Cable 10 is placed on cable and draws in handle 6 and fix tail pipe 3 through cable and be electrically connected with thermal protector 4; Cable extraction handle 6 is fixed tail pipe 3 with cable and is fixedly connected with;
Encapsulated epoxy resin 9 in the inner chamber of the installation endoporus of the holder housing 1 in temperature-measuring casing 2 upper end, cable is fixed tail pipe 3 and is closed by this epoxy resin 9 and be fixed cable 10; Cable 10 connects by being connected slotting spring 5 with the exit of thermal protector 4, connects slotting spring 5 and crimps with the end of cable 10, and the exit of thermal protector 4 inserts to connect in slotting spring 5 to be formed with cable 10 and is electrically connected.Adopt to connect and insert spring 5 and realize detachable connection, its be beneficial to the later stage to the parameter adjustment of thermal protector 4, reprocess and replacement operation.
When the utility model uses; when needs carry out parameter adjustment to temperature relay or reprocess; temperature-measuring casing 2 can be disassembled from holder housing 1; parameter adjustment or replacing are implemented to thermal protector 4; thermal protector 4 parameter adjustment or change after; reinsert in the insulating heat conductive silicon grease 8 in temperature-measuring casing 2, the end of thread of temperature-measuring casing 2 smears screw thread glue again, and be threaded with holder housing 1 reparation.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range is see claim, and when without prejudice to spirit of the present utility model, the utility model can do any type of amendment.
Claims (8)
1. temperature relay, comprises, and thermal protector is characterized in that, also comprises, temperature-measuring casing and conducting strip; Described conducting strip is fixedly connected with the inwall of described temperature-measuring casing, and described thermal protector is arranged in the inner chamber of described temperature-measuring casing, in this inner chamber, fill heat-conducting silicone grease.
2. temperature relay according to claim 1; it is characterized in that; also comprise; tail pipe fixed by holder housing and cable; described holder housing offers installation endoporus; the link of this installation endoporus and the opening of described temperature-measuring casing are tightly connected, and the cable of described thermal protector is stretched out from the exit of described installation endoporus, and described cable is fixed tail pipe and is fixedly connected with the opening of described exit.
3. temperature relay according to claim 2, is characterized in that, the link of described installation endoporus is connected by Screw assembly with the opening of described temperature-measuring casing; The open-top screw thread assembly connection of tail pipe and described exit fixed by described cable.
4. temperature relay according to claim 3, is characterized in that, sealing resin in the inner chamber of described installation endoporus, and the cable of described thermal protector is fixed in described inner chamber.
5. the temperature relay according to claim 3 or 4, is characterized in that, described cable connects by being connected slotting spring with the exit of described thermal protector.
6. temperature relay according to claim 1, is characterized in that, the inwall of described temperature-measuring casing offers thinning area groove, fills heat-conducting silicone grease in the groove of described thinning area.
7. temperature relay according to claim 4, is characterized in that: the link of described installation endoporus is connected by Screw assembly with the opening of described temperature-measuring casing, and envelope screw thread glue is filled out in this junction.
8. temperature relay according to claim 2, the material of described holder housing is stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673526.1U CN204332825U (en) | 2014-11-05 | 2014-11-05 | Temperature relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673526.1U CN204332825U (en) | 2014-11-05 | 2014-11-05 | Temperature relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332825U true CN204332825U (en) | 2015-05-13 |
Family
ID=53169151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420673526.1U Expired - Fee Related CN204332825U (en) | 2014-11-05 | 2014-11-05 | Temperature relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204332825U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319174A (en) * | 2014-11-05 | 2015-01-28 | 北京航天金宇电子技术有限公司 | Temperature relay |
| CN107240529A (en) * | 2017-06-30 | 2017-10-10 | 扬州五岳电器有限公司 | A kind of motor Hand-reset thermal protector |
| TWI682416B (en) * | 2019-01-07 | 2020-01-11 | 松川精密股份有限公司 | Relay structure with heat dissipation function |
-
2014
- 2014-11-05 CN CN201420673526.1U patent/CN204332825U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319174A (en) * | 2014-11-05 | 2015-01-28 | 北京航天金宇电子技术有限公司 | Temperature relay |
| CN107240529A (en) * | 2017-06-30 | 2017-10-10 | 扬州五岳电器有限公司 | A kind of motor Hand-reset thermal protector |
| TWI682416B (en) * | 2019-01-07 | 2020-01-11 | 松川精密股份有限公司 | Relay structure with heat dissipation function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161105 |