CN202651020U - Overcurrent and overheating electrical protector - Google Patents
Overcurrent and overheating electrical protector Download PDFInfo
- Publication number
- CN202651020U CN202651020U CN 201220281174 CN201220281174U CN202651020U CN 202651020 U CN202651020 U CN 202651020U CN 201220281174 CN201220281174 CN 201220281174 CN 201220281174 U CN201220281174 U CN 201220281174U CN 202651020 U CN202651020 U CN 202651020U
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- China
- Prior art keywords
- insulator
- metal base
- base plate
- heat
- sensitive sheet
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Abstract
The utility model discloses an overcurrent and overheating electrical protector including a casing, and a metal bottom plate, an insulator, a moving contact, a pressing plate which are enclosely arranged in the casing, and a heat-sensitive sheet counter-rotating while reaching the setting temperature and resetting while being lower than the setting temperature. holes are arranged in the metal bottom plate, the insulator, the moving contact, the pressing plate, and the heat-sensitive sheet, the moving contact and the heat-sensitive sheet are compressed on the insulator in an up-down overlapping manner through the pressing plate and a rivet penetrated through the holes, the metal bottom plate is inserted in the insulator, and the plate body is enclosed in the inside of the insulator; the rivet is a hollow one, and a plurality of through holes are arranged in the plate body of the metal bottom plate. The combination of the metal bottom plate and the insulator is reliable, and the metal bottom plate and the insulator are unseparated when in use, thereby ensuring the reliable working of the electrical protector. Therefore, the electrical protector provided is long in service lifetime, and is suitable to be widely applied to the field of electrical protectors.
Description
Technical field
The utility model relates to a kind of non-electricity protector, particularly relate to a kind of can automatic cut-off power when the electric equipment overcurrent overheats such as three phase electric machine, compressor, prevent the non-electricity protector that it burns.
Background technology
Existing overcurrent overheat non-electricity protector, such as Chinese invention patent, the patent No. is 02107937.4, and name is called the disclosed a kind of structure of protective device, and it comprises shell and is installed in hermetically described shell interior metal base plate, insulator, movable contact spring, pressing plate and thermosensitive bimetal; On the described metal base plate fixed contact is installed, on the described movable contact spring moving contact is installed, the plate body of described metal base plate is fitted on the bottom surface of described insulator, offer respectively through hole on described metal base plate, insulator, movable contact spring, pressing plate and the thermosensitive bimetal, described movable contact spring and heat-sensitive sheet are pressed on the described insulator by described pressing plate and the tubular rivet that passes described through hole in stacked up and down mode.
There is following shortcoming in the non-electricity protector of this structure when work; namely the plate body owing to metal base plate is fitted on the bottom surface of insulator; so often causing in use, metal base plate and insulator are separated; especially very easily be separated with metal base plate in the bottom surface of the first end of the contiguous movable contact of insulator; thereby cause movable contact spring normally to connect with metal base plate; so that therefore the protector cisco unity malfunction has shortened its useful life greatly.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of metal base plate and can combine reliably with insulator in use, and both can not separate, thereby guarantees the overcurrent overheat non-electricity protector that non-electricity protector can be worked reliably.
For solving the problems of the technologies described above, the utility model adopts a kind of like this overcurrent overheat non-electricity protector, comprises shell and is installed in hermetically metal base plate, insulator, movable contact spring, pressing plate and the counter-rotating when reaching design temperature in the described shell, the heat-sensitive sheet that resets when being lower than design temperature; On described metal base plate, insulator, movable contact spring, pressing plate and heat-sensitive sheet, offer respectively porose section, described movable contact spring and heat-sensitive sheet are pressed on the described insulator by described pressing plate and the rivet that passes described hole section in stacked up and down mode, described metal base plate inserts in the described insulator, and its plate body is wrapped in the inside of this insulator.
In the utility model, described heat-sensitive sheet is bimetal leaf or three sheet metals, is filled with inert gas in the confined space of described shell.
After adopting such structure; because metal base plate of the present utility model inserts in the insulator; its plate body is wrapped in the inside of this insulator; in other words; the plate body of metal base plate is contained in the inside of insulator fully, thereby in use metal base plate combines reliably with the insulation physical efficiency, and both can not separate; can guarantee well the normal connection of movable contact spring and metal base plate, thereby non-electricity protector can be worked reliably.
As a kind of improvement of the present utility model, described rivet is tubular rivet, also offers several through holes with it at the plate of described metal base plate.Adopt such structure, can make the plate body of metal base plate more reliable on the one hand, firmly be positioned at insulator inside, also can alleviate on the other hand the weight of non-electricity protector.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a kind of structural representation of the utility model overcurrent overheat non-electricity protector.
Fig. 2 is the schematic top plan view of Fig. 1, shell not shown in the figures.
Fig. 3 is that the master of movable contact spring in the utility model looks schematic diagram.
Fig. 4 is the schematic top plan view of movable contact spring in the utility model.
Fig. 5 is a kind of structural representation of metal base plate in the utility model.
Fig. 6 be among Fig. 5 along the A-A line cross-sectional schematic.
Fig. 7 is that the master of insulator in the utility model looks schematic diagram.
Fig. 8 is that schematic diagram is looked on the left side of insulator in the utility model.
Fig. 9 is the elevational schematic view of insulator in the utility model.
Figure 10 is the schematic top plan view of insulator in the utility model.
Figure 11 is along the cross-sectional schematic of B-B line among Figure 10.
Figure 12 is a kind of bonding state schematic diagram that the plate body of metal base plate is wrapped in insulator inside.
Figure 13 is that schematic diagram is looked on the left side of Figure 12.
Figure 14 is the schematic top plan view of Figure 12.
Figure 15 be among Figure 14 along the C-C line cross-sectional schematic.
Embodiment
, comprise shell 1 and be installed in hermetically metal base plate 2, insulator 3, movable contact spring 4, pressing plate 5 and the counter-rotating when reaching design temperature in the described shell 1, the heat-sensitive sheet 6 that resets when being lower than design temperature by fluid sealants such as epoxy glues 10 to a kind of overcurrent overheat non-electricity protector shown in Figure 15 referring to Fig. 1; On described metal base plate 2, insulator 3, movable contact spring 4, pressing plate 5 and heat-sensitive sheet 6, offer respectively porose 2-1,3-1,4-1,5-1,6-1, described movable contact spring 4 is pressed on the described insulator 3 by described pressing plate 5 and the rivet 7 that passes the described hole 2-1 of section, 3-1,4-1,5-1,6-1 in stacked up and down mode with heat-sensitive sheet 6, described metal base plate 2 inserts in the described insulator 3, and its plate body 2-2 is wrapped in the inside of this insulator 3.In the utility model, described rivet 7 is preferably tubular rivet.
In the utility model, as shown in Figure 1, movable end at described movable contact spring 4 is equipped with a moving contact 4-2, at described metal base plate 2 a fixed contact 2-3 with the corresponding setting of described moving contact 4-2 is installed, this metal base plate 2, movable contact spring 4 are electrically connected with electric equipment such as motor, compressors by wire 8,9 respectively.Described pressing plate 5 is tabular components that are cuboid, and the 5-1 of hole section that offers on it is a conehead through hole.Extremely shown in Figure 15 such as Fig. 7, offer the through hole 3-1 that a described rivet 7 of confession penetrates on the described insulator 3, this through hole 3-1 is a counter sink, described countersunk head can be cylindrical countersunk head or taper countersunk head, the utility model is preferably cylindrical countersunk head, be provided with one in the upper surface of this insulator 3 and be used for holding described movable contact spring 4, the gathering sill 3-2 of pressing plate 5 and heat-sensitive sheet 6, described cylindrical counter sink 3-1 preferably is arranged on the longitudinal middle part of gathering sill 3-2, when mounted, with heat-sensitive sheet 6, movable contact spring 4 and pressing plate 5 are placed in the gathering sill 3-2 from the bottom to top, then tubular rivet 7 is penetrated metal base plate 2, insulator 3, movable contact spring 4, the 2-1 of hole section that offers on pressing plate 5 and the heat-sensitive sheet 6,3-1,4-1,5-1,6-1, the annular protrusion of tubular rivet 7 lower ends is embedded in the cylindrical countersunk head place of the through hole 3-1 of insulator 3, the annular wall of tubular rivet 7 upper ends is pressed in the conehead of the 5-1 of hole section that offers on the pressing plate 5 by compression tool, thereby described movable contact spring 4 and heat-sensitive sheet 6 are pressed on the described insulator 3.
In the utility model, described heat-sensitive sheet 6 is bimetal leaf or three sheet metals, in addition, is arc extinguishing better, and the utility model is filled with the hybrid protection inert gas that is comprised of helium, nitrogen etc. in the confined space of described shell 1.
For the plate body 2-2 that makes metal base plate 2 can more reliable, stably be fixed on insulator 3 inside, the utility model is preferably offered several through holes 2-2-1 at the plate body 2-2 of described metal base plate 2, like this when the plate body 2-2 of metal base plate 2 is wrapped in insulator 3 inside, all be full of insulator 3 in each through hole 2-2-1 on the plate body 2-2, shown in Fig. 1,5,6.
The utility model non-electricity protector can be arranged on the inside of the electric equipment such as motor, and its space that takies is little, simple in structure, and dependable performance plays a good protection to electric equipment such as motors.
Through on probation, metal base plate of the present utility model is combined reliably with insulator, and both do not separate in use, has guaranteed that non-electricity protector can work reliably, and long service life has obtained good effect.
Claims (3)
1. an overcurrent overheat non-electricity protector comprises shell (1) and is installed in hermetically metal base plate (2), insulator (3), movable contact spring (4), pressing plate (5) and the counter-rotating when reaching design temperature in the described shell (1), the heat-sensitive sheet (6) that resets when being lower than design temperature; In described metal base plate (2), insulator (3), movable contact spring (4), offer respectively porose (2-1 on pressing plate (5) and the heat-sensitive sheet (6), 3-1,4-1,5-1,6-1), described movable contact spring (4) and heat-sensitive sheet (6) in stacked up and down mode by described pressing plate (5) with pass the described hole (2-1 of section, 3-1,4-1,5-1, rivet 6-1) (7) is pressed on the described insulator (3), it is characterized in that: described metal base plate (2) inserts in the described insulator (3), and its plate body (2-2) is wrapped in the inside of this insulator (3).
2. overcurrent overheat non-electricity protector according to claim 1, it is characterized in that: described rivet (7) is tubular rivet, also offers several through holes (2-2-1) on the plate body (2-2) of described metal base plate (2).
3. overcurrent overheat non-electricity protector according to claim 1 and 2, it is characterized in that: described heat-sensitive sheet (6) is bimetal leaf or three sheet metals, is filled with inert gas in the confined space of described shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281174 CN202651020U (en) | 2012-06-15 | 2012-06-15 | Overcurrent and overheating electrical protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281174 CN202651020U (en) | 2012-06-15 | 2012-06-15 | Overcurrent and overheating electrical protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651020U true CN202651020U (en) | 2013-01-02 |
Family
ID=47420085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220281174 Expired - Lifetime CN202651020U (en) | 2012-06-15 | 2012-06-15 | Overcurrent and overheating electrical protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217896A (en) * | 2014-09-15 | 2014-12-17 | 匡成效 | Built-in over-current overheating protector |
-
2012
- 2012-06-15 CN CN 201220281174 patent/CN202651020U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217896A (en) * | 2014-09-15 | 2014-12-17 | 匡成效 | Built-in over-current overheating protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou evergreen Electric Appliance Co., Ltd. Assignor: Kuang Farong Contract record no.: 2013320000815 Denomination of utility model: Overcurrent and overheating electrical protector Granted publication date: 20130102 License type: Exclusive License Record date: 20131213 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201102 Address after: No.2, information Avenue, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Changrong Electric Appliance Co., Ltd Address before: 213127, Jiangsu Province, Changzhou new town, North District, new town villa No. Patentee before: Kuang Farong |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |