CN201298807Y - Transducer terminal protection structure - Google Patents
Transducer terminal protection structure Download PDFInfo
- Publication number
- CN201298807Y CN201298807Y CNU2008202131498U CN200820213149U CN201298807Y CN 201298807 Y CN201298807 Y CN 201298807Y CN U2008202131498 U CNU2008202131498 U CN U2008202131498U CN 200820213149 U CN200820213149 U CN 200820213149U CN 201298807 Y CN201298807 Y CN 201298807Y
- Authority
- CN
- China
- Prior art keywords
- terminals
- cable
- frequency converter
- protection structure
- transducer
- 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
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Abstract
The utility model relating to the field of electro-technology provides a transducer terminal protection structure. A plurality of wiring holes are opened on a transducer encloser at the positions corresponding to the terminals one by one, therefore, by adopting the pin-to-pin wiring holes, each input cable can be connected with the terminal of the major loop of the transducer one by one, not only the requirements of protection level of IP 20 can be satisfied without plastic seal rings, but also the connection of input cables is simple and reliable. The wiring holes on the encloser are separated by a plastic insulation material to avoid the short circuit caused by wrong process of cable terminals and avoid reduced insulation performance, therefore, even though there are a lot of terminals, error-connection can also be avoided by connecting each cable to a terminal through the corresponding wiring hole, and the reliability of the transducer can be increased.
Description
[technical field]
The utility model relates to electrical technology field, specifically refers to a kind of frequency converter terminals protection structure.
[background technology]
Along with the fast development of industrial automation, need frequency converter to provide increasing function to satisfy the job requirement of motor.From the existing frequency converter that is applied to industrial circle, its case design indicates goes out some safeguard measures; Existing frequency converter is equiped with circuit terminal, through terminals other electrical equipment of cable and electric drilling match is drawn, as shown in Figure 1, frequency converter comprise transducer body 10 ', be installed on the case 11 of transducer body 10 ' outer ' and be contained in the terminals row 20 of case 11 ' interior ', terminals row 20 ' be provided with screen formula terminals 21 ', case 11 ' on connect line end row 20 ' the position offer two to three big circular wiring holes 12 ', major loop input cable 22 ' by wiring hole 12 ' with the major loop screen formula terminals 21 of frequency converter ' be connected.This connected mode needs at a plastic seal ring of wiring hole 12 ' add when requiring to satisfy the degree of protection of IP20.Yet cable 22 ' the input number more for a long time when the major loop input, cable 22 ' pass plastic seal ring is difficult for sealing, import in addition cable 22 ' from same wiring hole 12 ' input be connected to the screen formula terminals 21 of frequency converter ', because the line pine that off normal causes bad connection easily and has, the line that has is tight, easily cause the frequency converter unstable properties, reliability is not strong; On the other hand in the cable 22 ' connection procedure of reality, often occur causing unnecessary loss and trouble for the manufacturing enterprise and the user of frequency converter because of the user causes frequency converter to damage phenomenon to other terminals not corresponding cable 22 ' misconnection because of carelessness.
[utility model content]
The purpose of this utility model is to solve many cable misconnection frequency converter terminals, and causes frequency converter to damage the problem that phenomenon takes place, and proposes a kind of frequency converter terminals protection structure.
The utility model frequency converter terminals protection structure; comprise transducer body, be installed on the outer case of transducer body and be contained in the interior terminals row of case; terminals row is provided with terminals; position corresponding to terminals on case offers a plurality of wiring holes, and wiring hole is corresponding one by one with terminals.
Preferably, pass the cable corresponding with terminals in the wiring hole, cable is connected with terminals.
Preferably, be provided with the grid made from the plastic cement insulating material between each wiring hole on the case.
Preferably, described terminals comprise board plug type terminals, screw type terminals, screen formula terminals, PCB terminals.
The utility model frequency converter terminals protection structure; position corresponding to terminals on the frequency converter case offers a plurality of wiring holes; wiring hole is corresponding one by one with terminals; adopt the fairlead of (PIN-TO-PIN) one to one like this; each input cable is connected one to one with the major loop terminals of frequency converter; can satisfy the degree of protection requirement of IP20 without plastic seal ring, it is simple, reliable that the input cable is connected.Even many again terminals are arranged, as long as each root cable is connected terminals by corresponding wiring hole, the phenomenon of misconnection also can not appear, improve the reliability of frequency converter.
[description of drawings]
Fig. 1 is the perspective view of prior art;
Fig. 2 is the structural representation of the utility model one embodiment.
[embodiment]
Below in conjunction with accompanying drawing, the utility model frequency converter terminals protection structure is elaborated:
As shown in Figure 2, be the utility model one preferred embodiment, terminals row 20, terminals 21, toggle switch and relay (showing on the figure) that frequency converter comprises transducer body 10, frequency converter case 11, is connected with main circuit; Annexation between them is: transducer body 10 is installed in the case 11, and the terminals that are contained in the case 11 arrange 20, terminals row 20 is provided with screen formula terminals 21, certainly, for board plug type terminals, screw type terminals and PCB terminals, be applicable to the structure described in the present embodiment too; A plurality of wiring holes 12 are offered in the line end that connects on case 11 row 20 position, each wiring hole 12 is corresponding one by one with the terminals 21 on the screen formula terminals row 20, pass the cable 22 corresponding in the wiring hole 12 with terminals 21, pass a cable 22 in each wiring hole 12, the termination of cable 22 is connected with terminals 21.The terminals 21 of frequency converter major loop are just generally having dc bus, negative terminal, brake unit PB end, three-phase input R, S, T, three-phase output U, V, W and earth terminal PE, for realizing connecting simply, reliably with the degree of protection requirement of satisfying frequency converter IP20, the cable 22 of external power input is connected (PIN-TO-PIN) one to one with frequency converter major loop screen formula terminals 21, being provided with the grid made from the plastic cement insulating material (not showing on the figure) between each wiring hole 12 on the case 11 separates mutually, can avoid handling the bad short circuit that may cause because of cable 22 terminals, drawbacks such as decreasing insulating, this connected mode is when requiring to satisfy the degree of protection of IP20, do not need to add a plastic seal ring at wiring hole 12, it is simple that input cable 22 is connected, reliably.Owing to can not cause off normal, can not touch internal circuit during terminal block, safe and reliable.
The above only is a better embodiment of the present utility model; protection range of the present utility model does not exceed with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (4)
1, a kind of frequency converter terminals protection structure; comprise transducer body, be installed on the outer case of transducer body and be contained in the interior terminals row of case; terminals row is provided with terminals; it is characterized in that: the position corresponding to terminals on case offers a plurality of wiring holes, and wiring hole is corresponding one by one with terminals.
2, frequency converter terminals protection structure according to claim 1, it is characterized in that: pass the cable corresponding with terminals in the wiring hole, cable is connected with terminals.
3, frequency converter terminals protection structure according to claim 1 is characterized in that: be provided with the grid made from the plastic cement insulating material between each wiring hole on the case.
4, frequency converter terminals protection structure according to claim 1, it is characterized in that: described terminals comprise board plug type terminals, screw type terminals, screen formula terminals, PCB terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202131498U CN201298807Y (en) | 2008-11-04 | 2008-11-04 | Transducer terminal protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202131498U CN201298807Y (en) | 2008-11-04 | 2008-11-04 | Transducer terminal protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298807Y true CN201298807Y (en) | 2009-08-26 |
Family
ID=41044794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202131498U Expired - Fee Related CN201298807Y (en) | 2008-11-04 | 2008-11-04 | Transducer terminal protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298807Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913328A (en) * | 2010-07-29 | 2010-12-15 | 重庆长安汽车股份有限公司 | Wiring box of drive motor controller of pure electric vehicle |
| CN104135201A (en) * | 2014-08-01 | 2014-11-05 | 常州佳盟电子科技有限公司 | Junction device of brushless direct-current motor controller or alternating-current asynchronous motor controller |
-
2008
- 2008-11-04 CN CNU2008202131498U patent/CN201298807Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913328A (en) * | 2010-07-29 | 2010-12-15 | 重庆长安汽车股份有限公司 | Wiring box of drive motor controller of pure electric vehicle |
| CN104135201A (en) * | 2014-08-01 | 2014-11-05 | 常州佳盟电子科技有限公司 | Junction device of brushless direct-current motor controller or alternating-current asynchronous motor controller |
| CN104135201B (en) * | 2014-08-01 | 2017-07-07 | 常州市维益科技有限公司 | The termination of brushless direct current motor controller/AC induction motor controller |
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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: 20090826 Termination date: 20121104 |