CN202120821U - Anti-explosion protector for refrigeration equipment - Google Patents
Anti-explosion protector for refrigeration equipment Download PDFInfo
- Publication number
- CN202120821U CN202120821U CN2011202293403U CN201120229340U CN202120821U CN 202120821 U CN202120821 U CN 202120821U CN 2011202293403 U CN2011202293403 U CN 2011202293403U CN 201120229340 U CN201120229340 U CN 201120229340U CN 202120821 U CN202120821 U CN 202120821U
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- China
- Prior art keywords
- plastic casing
- temperature sensing
- sensing metal
- contact
- terminal assemblies
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Abstract
The utility model discloses an anti-explosion protector for refrigeration equipment, which is capable of isolating inflammable and explosive gases outside the protector from possible electric sparks inside the protector so that hidden safety dangers are removed. The connecting portion between two or three terminal assemblies embedded on the end face of a plastic shell body of the protector and the outer surface of the plastic shell body, the connecting portion between a screw and nut assembly and the outer surface of the plastic outer shell and the connecting portion between a temperature sensing metal seal cover and an opening of the plastic shell body are all connected through a sealant in sealing mode.
Description
Technical field
The utility model relates to explosive-proof protector device technical field, the explosive-proof protector device that particularly a kind of refrigeration plant is used.
Background technology
At present, along with the popularization and the Montreal Agreement of the various environmental policies in the world are implemented the arriving in time limit, the former freon working medium that is used for refrigeration plant will be replaced by floride-free gas working medium comprehensively; Though these no fluorine gas have environmental protection characteristic; But belong to flammable explosive gas, when adopting the new working medium of this kind, occur leaking like refrigerating system; Make when gas concentration reaches certain value in the refrigeration plant, will produce blast by slight electric spark.And be used for the contact in the protector of refrigeration plant at present, and in the moment that switches on and off, may produce electric spark, be prone to produce blast, the safety of refrigeration plant has just been constituted hidden danger.
Summary of the invention
The purpose of the utility model is the explosive-proof protector device that provides a kind of refrigeration plant to use, and it can make the flammable explosive gas of protector outside and the inner issuable electric spark of protector completely cut off, thereby has eliminated potential safety hazard.
The technical solution that the utility model proposed is such:
The explosive-proof protector device that a kind of refrigeration plant is used; Comprise plastic casing (2); Be embedded with 2 or 3 terminal assemblies at plastic casing (2) end face; This terminal assemblies is made up of the contact (3) that outward extending terminal (1) is connected with conducting with it; Be provided with the bimetal leaf (7) of band contact (8) in said plastic casing (2) inner chamber; And fix by the screw nut assembly that is contained in plastic casing (2) central authorities; Bimetal leaf (7) two ends contacts (8) contact with the contact of two terminal assemblies (3) wherein respectively, and the opening of plastic casing (2) is by temperature sensing metal capping (6) sealing, and said 2 or 3 terminal assemblies and plastic casing (2) appearance junction, said screw nut assembly and plastic casing (2) appearance junction and said temperature sensing metal capping (6) and plastic casing (2) opening junction are equipped with fluid sealant and are tightly connected.
The horizontal circle annular step outside of said plastic casing (2) opening part has toroidal cavity (2-1); The 90 ° of angles of the outer Edge Bend of temperature sensing metal capping (6) that match, and be pressed into the annular step that falls level at the edge of temperature sensing metal capping (6).
Compared with prior art, the utlity model has following beneficial effect:
Since the plastic casing appearance respectively with each metalwork; All use fluid sealant like terminal assemblies, screw nut assembly and temperature sensing metal capping junction; For example epoxy resin is connected and sealed; This just makes in peripheral flammable explosive gas of protector and the protector inner chamber issuable electric spark isolated fully reliably, thereby avoids blasting.Simultaneously; Because the plastic casing opening part has toroidal cavity; The outer Edge Bend of temperature sensing metal capping also is pressed with the annular step that falls level on the edge of; Both are tightly connected with fluid sealant after mating interlocking, because of the metal cover edge falls grade existence of annular step, thereby can stop the center flow of fluid sealant toward the temperature sensing metal closure surface.
The explosive-proof protector device of the utility model is mainly used on the refrigerant compressor and other refrigeration plants that uses floride-free refrigeration working medium, makes the usefulness of thermal overload protection.
Description of drawings
Fig. 1 is the explosive-proof protector device structural representation that a kind of refrigeration plant of an embodiment of the utility model is used.
Fig. 2 is the structural representation after explosive-proof protector device shown in Figure 1 coupling part seals with fluid sealant.
Fig. 3 is the I part enlarged drawing of Fig. 2.
Embodiment
Through following embodiment the utility model is done further to set forth in detail.
Referring to Fig. 1, Fig. 2, shown in Figure 3, the explosive-proof protector device that a kind of refrigeration plant is used is made up of contact 8, contact 3, terminal 1, plastic casing 2, embedded nut 9, screw rod 4, nut 10, packing ring 5, bimetal leaf 7, temperature sensing metal capping 6.Terminal 1,1-1 constitutes the 1st, 2 terminal assemblies with contact 3,3-3 respectively, and screw rod 4, nut 10, embedded nut 9, packing ring 5 are formed screw nut assembly.On plastic casing 2 tops temperature sensing metal capping 6 is set; The toroidal cavity 2-1 of dark about 0.1 ~ 2mm of the ring-shaped step arranged outside at plastic casing 2 open upper end places, wide about 0.1 ~ 1mm; Temperature sensing metal capping 6 all Edge Bends cooperate in this groove 2-1 of insertion for 90 °; And with fluid sealant 11 entire contact surface is sealed when mounted; Groove 2-1 stops fluid sealant 11 to flow into plastic casing 2 inner chambers, and temperature sensing metal capping 6 peripheries are an annular boss simultaneously, flows to metal cover 6 surface central authorities in order to stop fluid sealant.
Claims (2)
1. explosive-proof protector device that refrigeration plant is used; Comprise plastic casing (2); Be embedded with 2 or 3 terminal assemblies at plastic casing (2) end face; This terminal assemblies by outward extending terminal (1) with it the contact (3) that connects of conducting form; Be provided with the bimetal leaf (7) of band contact (8) in said plastic casing (2) inner chamber; And fix by the screw nut assembly that is contained in plastic casing (2) central authorities; Bimetal leaf (7) two ends contacts (8) contact with the contact of two terminal assemblies (3) wherein respectively, and the opening of plastic casing (2) is characterized in that by temperature sensing metal capping (6) sealing: said 2 or 3 terminal assemblies and plastic casing (2) appearance junction, said screw nut assembly and plastic casing (2) appearance junction and said temperature sensing metal capping (6) and plastic casing (2) opening junction are equipped with fluid sealant close (11) and seal and be connected.
2. the explosive-proof protector device that refrigeration plant according to claim 1 is used; It is characterized in that: the horizontal circle annular step outside of said plastic casing (2) opening part has toroidal cavity (2-1); The 90 ° of angles of the outer Edge Bend of temperature sensing metal capping (6) that match, and be pressed into the annular step that falls level at the edge of temperature sensing metal capping (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202293403U CN202120821U (en) | 2011-07-01 | 2011-07-01 | Anti-explosion protector for refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202293403U CN202120821U (en) | 2011-07-01 | 2011-07-01 | Anti-explosion protector for refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120821U true CN202120821U (en) | 2012-01-18 |
Family
ID=45461863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202293403U Expired - Fee Related CN202120821U (en) | 2011-07-01 | 2011-07-01 | Anti-explosion protector for refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536771A (en) * | 2012-02-20 | 2012-07-04 | 上海航天科工电器研究院有限公司 | External type compressor protector |
-
2011
- 2011-07-01 CN CN2011202293403U patent/CN202120821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536771A (en) * | 2012-02-20 | 2012-07-04 | 上海航天科工电器研究院有限公司 | External type compressor protector |
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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: 20120118 Termination date: 20190701 |