CN207426181U - Elastic contact type earth protective device - Google Patents
Elastic contact type earth protective device Download PDFInfo
- Publication number
- CN207426181U CN207426181U CN201720618768.4U CN201720618768U CN207426181U CN 207426181 U CN207426181 U CN 207426181U CN 201720618768 U CN201720618768 U CN 201720618768U CN 207426181 U CN207426181 U CN 207426181U
- Authority
- CN
- China
- Prior art keywords
- elastic part
- grounding elastic
- stent
- earthing bar
- screw
- Prior art date
- 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
Links
Abstract
The utility model discloses a kind of elastic contact type earth protective devices; including earthing bar and stent; the earth protective device further includes grounding elastic part; grounding elastic part, earthing bar and stent are in turn connected to form one by screw group; grounding elastic part includes fixed part and the contact site for being arranged on fixed part both sides; gap has been respectively formed on per side joint contact portion, has been split per side joint contact portion by gap and forms multiple contact jaws.The utility model has the advantages that efficient, reliable, and ground protection is carried out convenient for enclosure interior protected device, by controlling the fit-up gap of grounding elastic part and protected device, ensures grounding elastic part and protected device is good contacts, occupy little space.Grounding elastic part can be deformed in the reasonable scope, realize protected device, grounding elastic part, earthing bar, the quiet earth protecting effect of ground lead.
Description
Technical field
The utility model belongs to the technical field of circuit protection device, more particularly, to a kind of elastic contact type ground protection
Device.
Background technology
Conventional ground protection mode is to contact to process threaded securing bores on surface in protected device at present, passes through ground connection
Line line ear or with switching copper bar, protected device and it is main be grounded busbar unicom.With IGBT (Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor) it is to process threaded securing bores on IGBT radiators exemplified by power module, lead to
Cross the line ear of ground wire or with switching copper bar, radiator and the main earthing bar unicom of cabinet, realization is grounded with being greatly connected
Protection.
But there are following shortcomings for existing this ground structure：First, need protected device and extraneous earthing bar
There is screw fixed structure, this connection mode is inconvenient to carry out assembly or disassembly；If second is that at protected device mounting surface
In metal plate enclosure interior, it can not realize that the screw of protected device and ground lead ear or copper bar of transferring is fixed；3rd, for operation
The region of narrow space, it has not been convenient to assembly and disassembly earthing screw.
The content of the invention
The utility model provides a kind of easy disassembly, ground connection property stabilization to solve the technical issues of prior art, just
In the elastic contact type earth protective device of enclosure interior ground connection.
The utility model is adopted the technical scheme that by solution technical problem in the prior art：
The elastic contact type earth protective device of the utility model, including earthing bar and stent, ground protection dress
It puts and further includes grounding elastic part, grounding elastic part, earthing bar and stent are in turn connected to form one by screw group, and grounding elastic part includes
Fixed part and the contact site for being arranged on fixed part both sides have been respectively formed on gap, per side joint contact portion by gap point per side joint contact portion
It cuts to form multiple contact jaws.
The contact jaw of the grounding elastic part is the contact connectio in face and face with protected device, and contact jaw is with being protected
After device connection, grounding elastic part has the decrement of 1/4-1/2.
Multiple screw holes being connected with screw group are formed on the fixed part of the grounding elastic part.
The grounding elastic part is made of sprung copper or stainless steel 301.
First screw of the screw group including connection grounding elastic part screw hole and earthing bar, connection earthing bar and stent
Second screw.
With stent in strip, the first screw and the second screw relative dislocation are arranged on earthing bar the earthing bar,
Stent both ends are both provided with baffle, pass through the 3rd screw connection ground wire on the stent in an end-stopping plate.
The earthing bar accords with shape, the rectangular bending of stent in knuckle joint, and grounding elastic part is arranged on earthing bar one
On the bending part at end, stent is arranged on the bending part of the earthing bar other end.
The earthing bar is made of the conductive material of copper, aluminium or steel.
The utility model has the advantages and positive effects of：
The utility model have the advantages that it is efficient, reliable, convenient for enclosure interior protected device carry out ground protection, pass through
The fit-up gap of grounding elastic part and protected device is controlled, ensures grounding elastic part and protected device is good contacts, occupy sky
Between it is small.Grounding elastic part can be deformed in the reasonable scope, realize protected device, grounding elastic part, earthing bar, ground lead
Quiet earth protecting effect.
Description of the drawings
Fig. 1 is the structure diagram of the utility model grounding elastic part；
Fig. 2 is the structure diagram of the utility model first embodiment；
Fig. 3 is the use structure diagram of the utility model first embodiment；
Fig. 4 is the use top view of the utility model first embodiment；
Fig. 5 is the structure diagram of the utility model second embodiment；
Fig. 6 is the use structure diagram of the utility model second embodiment.
Wherein：
1：Grounding elastic part 2：Earthing bar
3：Stent 4：Ground wire
5：Fixed part 6：Contact site
7：Gap 8：Contact jaw
9：Screw hole 10：First screw
11：Second screw 12：Baffle
13：IGBT power module 14：Radiator
15：Door-plate.
Specific embodiment
Referring to the drawings and the utility model is described in detail in embodiment.
As shown in figures 1 to 6, the elastic contact type earth protective device of the utility model, it is described including earthing bar and stent
Earth protective device further include grounding elastic part, grounding elastic part 1, earthing bar 2 and stent 3 are in turn connected to form one by screw group
Body, grounding elastic part include fixed part 5 and the contact site 6 for being arranged on fixed part both sides, and gap 7 has been respectively formed on per side joint contact portion,
Split per side joint contact portion by gap and form multiple contact jaws 8.Every side joint contact portion of the grounding elastic part is respectively provided with 1-5 gap
And 2-6 contact jaw.
The contact jaw of the grounding elastic part is the contact connectio in face and face with protected device, and contact jaw is with being protected
After device connection, grounding elastic part has the decrement of 1/4-1/2.
Multiple screw holes 9 being connected with screw group are formed on the fixed part of the grounding elastic part.
The grounding elastic part is made of sprung copper or stainless steel 301.
The screw group includes the first screw 10 of connection grounding elastic part screw hole and earthing bar, connects earthing bar and stent
The second screw 11.
With stent in strip, the first screw and the second screw relative dislocation are arranged on earthing bar the earthing bar,
Stent both ends are both provided with baffle 12, pass through the 3rd screw connection ground wire 4 on the stent in an end-stopping plate.
The earthing bar accords with shape, the rectangular bending of stent in knuckle joint, and grounding elastic part is arranged on earthing bar one
On the bending part at end, stent is arranged on the bending part of the earthing bar other end.
The earthing bar is made of the conductive material of copper, aluminium or steel.
As in Figure 2-4, in the first embodiment of the utility model, elastic contact type earth protective device is applied to
IGBT radiators, IGBT power module 13 are mounted on radiator 14, grounding elastic part and strip earthing bar, strip earthing bar and item
Shape stent is formed a whole respectively by the first screw and the connection of the second screw, and the first screw and the second screw shift to install
Ground wire is provided on strip earthing bar, while in strip-shaped bracket.IGBT radiators are assembled to a suitable position, are realized
The contact jaw good contact of IGBT radiators and grounding elastic part, i.e. IGBT radiators compress 1/2-3/4 between contact jaw and fixed part
Space, ensure that grounding elastic part contact site still has the decrement of 1/4-1/2, grounding elastic part has certain decrement and rebound
Property, realize reliable and stable ground protection.Simultaneously, it is necessary to ensure that every side joint contact portion has 2 or more contact jaws, both sides contact site
In 4 or more contact jaws.
As seen in figs. 5-6, in the second embodiment of the utility model, elastic contact type earth protective device is applied to door
Plate 14, grounding elastic part pass through respectively with knuckle joint symbol shape earthing bar, knuckle joint symbol shape earthing bar and right angle bending stent
First screw and the connection of the second screw form a whole.Be in since knuckle joint accords with shape earthing bar "", grounding elastic part is set
On the bending part of knuckle joint symbol shape earthing bar one end, it is another that right angle bending stent is arranged on knuckle joint symbol shape earthing bar
On the bending part at end.Door-plate and right angle bending stent are assembled to a suitable position, realize connecing for door-plate and grounding elastic part
Contravention good contact, i.e. door-plate compress the space of 1/2-3/4 between contact jaw and fixed part, ensure that grounding elastic part contact site still has
The decrement of 1/4-1/2, grounding elastic part have certain decrement and resilience, realize reliable and stable ground protection, and
The contact surface of door-plate and grounding elastic part needs broken paint to ensure that conductive effect is good.Simultaneously, it is necessary to ensure that every side joint contact portion has 2
More than contact jaw, both sides contact site are in 4 or more contact jaws.
The utility model have the advantages that it is efficient, reliable, convenient for enclosure interior protected device carry out ground protection, pass through
The fit-up gap of grounding elastic part and protected device is controlled, ensures grounding elastic part and protected device is good contacts, occupy sky
Between it is small.Grounding elastic part can be deformed in the reasonable scope, realize protected device, grounding elastic part, earthing bar, ground lead
Quiet earth protecting effect.
The embodiment of the utility model is described in detail above, but the content is only the preferable of the utility model
Embodiment, it is impossible to be construed as limiting the scope of the utility model.It is made according to the scope of application of this utility model equal
Deng variation and improvement etc., should all still belong within the patent covering scope of the utility model.
Claims (8)
1. a kind of elastic contact type earth protective device, including earthing bar and stent, it is characterised in that：The ground protection dress
It puts and further includes grounding elastic part, grounding elastic part, earthing bar and stent are in turn connected to form one by screw group, and grounding elastic part includes
Fixed part and the contact site for being arranged on fixed part both sides have been respectively formed on gap, per side joint contact portion by gap point per side joint contact portion
It cuts to form multiple contact jaws.
2. elastic contact type earth protective device according to claim 1, it is characterised in that：The grounding elastic part connects
After contravention is the contact connectio in face and face with protected device, and contact jaw is connected with protected device, grounding elastic part has 1/
The decrement of 4-1/2.
3. elastic contact type earth protective device according to claim 1, it is characterised in that：The grounding elastic part is consolidated
Determine to be formed with multiple screw holes being connected with screw group in portion.
4. elastic contact type earth protective device according to claim 1, it is characterised in that：The grounding elastic part uses
Sprung copper or stainless steel 301 are made.
5. elastic contact type earth protective device according to claim 1, it is characterised in that：The screw group includes connecting
The first screw of grounding elastic part screw hole and earthing bar is connect, connects the second screw of earthing bar and stent.
6. elastic contact type earth protective device according to claim 1, it is characterised in that：The earthing bar and stent
In strip, the first screw and the second screw relative dislocation are arranged on earthing bar, and stent both ends are both provided with baffle, a terminal block
It is connected and is grounded by the 3rd screw on stent in plate.
7. elastic contact type earth protective device according to claim 6, it is characterised in that：The earthing bar is in elbow
Connector shape, the rectangular bending of stent, grounding elastic part are arranged on the bending part of earthing bar one end, and stent is arranged on ground connection
On the bending part for arranging the other end.
8. the elastic contact type earth protective device according to claim 6 or 7, it is characterised in that：The earthing bar is equal
It is made of the conductive material of copper, aluminium or steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720618768.4U CN207426181U (en) | 2017-05-31 | 2017-05-31 | Elastic contact type earth protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720618768.4U CN207426181U (en) | 2017-05-31 | 2017-05-31 | Elastic contact type earth protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426181U true CN207426181U (en) | 2018-05-29 |
Family
ID=62398964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720618768.4U Expired - Fee Related CN207426181U (en) | 2017-05-31 | 2017-05-31 | Elastic contact type earth protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359432A (en) * | 2017-05-31 | 2017-11-17 | 天津瑞能电气有限公司 | Elastic contact type earth protective device |
-
2017
- 2017-05-31 CN CN201720618768.4U patent/CN207426181U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359432A (en) * | 2017-05-31 | 2017-11-17 | 天津瑞能电气有限公司 | Elastic contact type earth protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180529 |