CN102468064B - Protective cover of electrical device - Google Patents
Protective cover of electrical device Download PDFInfo
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- CN102468064B CN102468064B CN201110206183.9A CN201110206183A CN102468064B CN 102468064 B CN102468064 B CN 102468064B CN 201110206183 A CN201110206183 A CN 201110206183A CN 102468064 B CN102468064 B CN 102468064B
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- protective cover
- stop plate
- electric equipment
- elastic stop
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention provides a protective cover of an electrical device. Elastic stopping sheets extend from a surface to the electrified side of an electromagnetic contactor and the electrified side of a switch. The elastic stopping sheets are clamped with grooves arranged on the electromagnetic contactor, the switch or the like for the purpose of fixing. Since the bending degree of the elastic stopping sheets needs to be guaranteed, the protective cover can not be used for a small electromagnetic contactor, a small switch or the like that are restricted in depth. In addition, during the dismounting, the elastic stopping sheets extend along the direction of depth and can not be bent freely, such that the sheets have to be pulled out forcibly and the clamping portions are likely to be damaged. The pair of elastic stopping sheets are disposed to extend in a parallel manner along the flowing direction of the current of a main circuit, are not resctricted by the depth and are clamped with the groove arranged on the electromagnetic contactor, such that the protective cover can be easily mounted and dismounted, and can be stably fixed without shedding due to the shock of the electromagnetic contactor and the switch.
Description
Technical field
The present invention relates to the protective cover of realizing protection that contacts of the electro-mechanical part such as portion of terminal that such as electric equipment such as electromagnetic contactor, switch has.
Background technology
Protective cover is installed in the mode that is exposed to outside electro-mechanical part that covers the electric equipments such as electromagnetic contactor, switch, by electro-mechanical part cannot directly be contacted, for preventing electric shock etc., to improve fail safe.
As the structure that this protective cover can be loaded and unloaded on electromagnetic contactor, generally adopt the structure shown in Japanese patent laid-open 11-284362, or use elastic stop plate.
Patent documentation 1: Japanese patent laid-open 11-284362
Summary of the invention
Protective cover in the past outside the structure of the contact of surface (above, front surface), side, also exists and utilizes slab construction only to prevent the mode from Surface Contact except above-mentioned preventing.In structure in the past as above, make elastic stop plate extend to the electro-mechanical part side of electromagnetic contactor, switch from surface protection wall, by engaging to be fixed with the groove that is arranged at electromagnetic contactor, switch etc.
But; there is small-sized electromagnetic contactor, the switch etc. of restriction for the depth from surface protection wall to terminal surface etc.; be difficult to the depth of the deflection (amount of bow) that obtains the elastic stop plate while guaranteeing to load and unload; in the situation that this elastic stop plate does not have deflection, cannot use this structure.
In addition,, in the time of dismounting, because elastic stop plate extends on depth direction, so cannot freely make its deflection, result can only be dismantled or pull-out by force by use instrument, has the possibility of holding section breakage.
In order to address the above problem; electric equipment protective cover of the present invention; the mode of extending by the direction with along parallel with the flow direction of the electric current of main circuit configures a pair of elastic stop plate; can be not by depth size restrictions elastic stop plate is set, by engaging with the groove being arranged on electric equipment, can load and unload simply; in addition; for the electric equipment such as electromagnetic contactor, switch, can realize the good installation of above-mentioned protective cover, the impact while making it be not easy because of switch etc. comes off.
With other manifestation mode, the present invention will be described below.
Electric equipment protective cover of the present invention; protection has the portion of terminal of the electric equipment of the portion of terminal being connected with main circuit; wherein; above-mentioned protective cover has a pair of elastic stop plate extending along the direction parallel with the flow direction of the electric current of above-mentioned main circuit; at elastic stop plate; in the position being fixed from above-mentioned elastic stop plate to bearing of trend away from position be provided with jut; engage with the notch part that is arranged at above-mentioned electric equipment by above-mentioned jut, above-mentioned protective cover is supported by above-mentioned electric equipment.
In electric equipment protective cover of the present invention; on vertical with above-mentioned bearing of trend and vertical with the depth direction going to set installation surface from the surface element of above-mentioned electric equipment direction; make leading section deflection centered by the fixed position of above-mentioned elastic stop plate of above-mentioned elastic stop plate; thus; above-mentioned jut becomes from the state engaging with the notch part that is arranged at above-mentioned electric equipment the state not engaging, and above-mentioned protective cover does not become and supported by above-mentioned electric equipment.
In electric equipment protective cover of the present invention, the leading section of a pair of above-mentioned elastic stop plate is in close direction deflection mutually.
In electric equipment protective cover of the present invention, the leading section of above-mentioned elastic stop plate has the elastic strength that can be used by operator finger deflection.
In electric equipment protective cover of the present invention, by by operator with finger by the leading section of a pair of above-mentioned elastic stop plate in close direction deflection, above-mentioned protective cover does not become and is supported by above-mentioned electric equipment.
In electric equipment protective cover of the present invention, be provided with the limiting wall of the size of the deflection of the leading section of the above-mentioned elastic stop plate of restriction.
In electric equipment protective cover of the present invention, above-mentioned limiting wall has the face parallel with above-mentioned elastic stop plate.
Describe for " elastic stop plate " at this." elasticity " is to remove restorable character after external force because of the object that deformation occurs external force.For this elasticity, can comprise the elasticity that the parts self of the structure division such as raw material, material of constituting parts have, or rubber, spring, metal, plastics, synthetic resin of having used auxiliary increase etc. have the parts of elastic property and the elasticity that obtains.
In addition, " engagement " represent the relatively relation of supporting mutually of two positions being associated.By becoming this relation, two portion's bit positions that are at least associated are determined, or are fixed.Or for one of them position is not moved, another position is stopped.
Thus, " elastic stop plate ", has the object that deformation occurs because of external force removing restorable character after external force, at least relevant to object, for two positions of mutually supporting one of them sheet, partly, position, parts.
In addition, " engaging " refer to that at least two positions that are associated are in keeping the relation of relative position.By forming such relation, two portion's bit positions that are associated are determined, or are fixed.In addition, two positions that are at least associated become one, move together, and action together, or along with one of them movement, action, motion, another also moves.
In addition, above-mentioned elastic stop plate above also can be called elastic card stop, elasticity latch for printed circuit.They can comprise above-mentioned jut, also can have separately jut, for above-mentioned elastic stop plate, above-mentioned jut, can be accompanied by based on above-mentioned action, function etc. the title of the action, the function etc. that represent them.Above-mentioned notch part, gap slot etc. are also the same.
As mentioned above, by the present invention, can make elastic stop plate deflection from the surperficial direction of protective cover, without use instrument and without pull-out by force, can safely, easily unload protective cover thus.
In addition,, due to the less-restrictive of depth, the position that therefore freely design engages with the electric equipment such as electromagnetic contactor, switch, further, can maintain and easily unload and be difficult to the installment state coming off because of the switching surge of electromagnetic contactor, switch.
The flexural loads of the elastic stop plate that in addition, protective cover has also can freely design.
Brief description of the drawings
Fig. 1 is the front view of the protective cover of one embodiment of the present of invention.
Fig. 2 is the inner side stereogram of the protective cover of one embodiment of the present of invention.
Fig. 3 is the stereogram that the protective cover shown in presentation graphs 1 is installed to electromagnetic contactor state before.
Fig. 4 is the stereogram that the protective cover shown in presentation graphs 1 is installed to the state after electromagnetic contactor.
Fig. 5 is the figure of the state that engages with the notch part being arranged on electric equipment of the jut of the elastic stop plate of the protective cover shown in presentation graphs 1.
Fig. 6 is the figure of the state that do not engage with the notch part being arranged on electric equipment of the jut of the elastic stop plate of the protective cover shown in presentation graphs 1.
Description of reference numerals:
1: protective cover
2: main body cover
11: elastic stop plate
12: from the concave surface of protective cover surface protection wall depression
13: be arranged on the pawl on elastic stop plate
14: surface protection wall
15: gap slot
16: stop, limiting section
21: gap slot
22: gap slot
23: separating part
Embodiment
Use accompanying drawing to describe for embodiments of the invention below.In addition, in the following description, as electric equipment, describe as an example of electromagnetic contactor example.
In addition, in following figure, taking the flow direction of the electric current of main circuit as Y direction, the depth direction going taking the surface element from above-mentioned electric equipment (front face) to set installation surface is as Z-direction, taking the direction vertical with Z-direction with above-mentioned Y direction as X-direction.
Fig. 1 is the front view that represents the protective cover of embodiments of the invention, and Fig. 2 is inner side stereogram, and Fig. 3 is the figure before protective cover 1 engages with electromagnetic contactor.
In these figure; 11 be arranged on protective cover 1 not from the outstanding elastic stop plate of surface protection wall 14; the 12nd, from the cave in recess of single order of surface protection wall 14; 13 are arranged on conduct on elastic stop plate 11 pawl for the jut that engages with electromagnetic contactor; 15 are arranged on the gap slot as notch part on the medial surface of protective cover 1, the 16th, the stop as limiting wall being limited in order not make elastic stop plate excessive deflection be damaged in the time unloading protective cover.
In addition, the 21st, gap slot, be arranged on above-mentioned elastic stop plate 11 on engage as the pawl 13 of jut.
In addition, as shown in Figure 3, described gap slot 21 is arranged on separating part 23, and this separating part 23 is arranged between the portion of terminal of electric equipment.Described separating part 23 is separated, and with in the time that wire rod, the distribution etc. of such as circulating current are bearing in the portion of terminal of main circuit etc. by screw etc., avoids occurring contact or the short circuit of wire rod, distribution between adjacent terminal.
Forming in a manner described protective cover 1, and attaching it in the situation of electromagnetic contactor, can protective cover 1 is being inserted into shell 2 and be installed from electromagnetic contactor front.
In the time inserting, the elastic stop plate 11 of protective cover 1 is advanced forward in deflection, final, is arranged on the gap slot 21 that pawl 13 on elastic stop plate 11 falls into main body cover 2 and engages, and becomes no longer deflection, is fixed thus in the Z direction of Fig. 4.
In addition, engage with the gap slot 21 of main body cover 2 by gap slot 15, also just carried out fixing on the X, Y-direction of Fig. 4, protective cover is stably fixed.
By adopting said structure, for installing, only by protective cover 1 being inserted shell 2 and just can be installed from front.And, owing to can seeing from front the pawl 13 being arranged on elastic stop plate 11 and the holding section that is arranged on the gap slot 21 on shell 2 after installing, so the confirmation that can easily install.
Utilize Fig. 5, Fig. 6 to describe this point.
Fig. 5 is the figure of the state that engages with the gap slot 21 as notch part being arranged on electric equipment of the pawl 13 as jut of the elastic stop plate 11 of the protective cover 1 shown in presentation graphs 1.
On the other hand, Fig. 6 be the protective cover 1 shown in presentation graphs 1 elastic stop plate 11 the pawl 13 as jut not be arranged on electric equipment on the figure of the state that engages as the gap slot 21 of notch part.
In Fig. 5, represent the state that the pawl 13 as jut of elastic stop plate 11 engages with the gap slot 21 as notch part being arranged on electric equipment.Namely so-called good engaging, the above-mentioned pawl 13 as jut is embedded into above-mentioned as the state in the gap slot 21 of notch part.
Its result, the no longer deflection but along the straight extension of Y direction, its state is as shown in Figure 5 of above-mentioned elastic stop plate.
Relatively, in Fig. 6, the pawl 13 as jut that has represented elastic stop plate not be arranged on electric equipment on the state that engages as the gap slot 21 of notch part.Namely so-called non-good engaging, the above-mentioned pawl 13 as jut is not embedded in the above-mentioned gap slot 21 as notch part, but takes state thereon.
Its result, above-mentioned elastic stop plate is failed along the straight extension of Y direction, but becomes deflection, and its state is as shown in Figure 6.
For the difference of these states, by relatively this Fig. 5 and Fig. 6 can easily understand.Specifically, be straight extension or deflection occurs by the state of visualization elastic stop plate, just can differentiate simply the fastening state of the gap slot as the pawl of jut and the notch part of above-mentioned electric equipment of above-mentioned elastic stop plate.
Why can be as described above judging fastening state by visual, is to make above-mentioned elastic stop plate extend the structure arranging along Y direction because adopted.
In employing, above-mentioned elastic stop plate is extended the structure arranging along Z-direction, can expect, even if for example, in the time there is no engaging, above-mentioned elastic stop plate generation deflection, with extend situation about arranging along Y direction compared with, be also difficult to by this deflected of Visual Confirmation.
In addition, in the time of dismounting, for the recess 12 of protective cover 1, can as shown in the arrow of Fig. 4, pinch a pair of elastic stop plate 11 with finger, by making its deflection, can remove the holding section of above-mentioned pawl 13 and above-mentioned gap slot 21, protective cover is unloaded simply.
As shown in Figure 1, above-mentioned recess 12 is the structure of the depression single order from surface protection wall 14 to Z-direction, has by the inwall 120 forming with the parallel plane plane of XY.But, be the state that there is no wall in above-mentioned elastic stop plate 11 1 sides, can pinch above-mentioned elastic stop plate 11 with finger.
At this, the position relationship of above-mentioned recess 12 and the above-mentioned wall 120 by forming with the parallel plane plane of XY is described simply.
The cave in part of single order of specific surface protective bulkhead 14 shown in Fig. 3, Fig. 4 is recess 12.Relatively, as shown in Figure 1, from surface protection wall 14 inwall of the end of the single order inwall 120 forming with the parallel plane plane of XY of serving as reasons that caves in.
Because the existence of above-mentioned inwall 120 has stoped entering of finger, make finger cannot contact the upper electro-mechanical parts that arrange such as electromagnetic contactor.Therefore,, in the time of dismounting protective cover 1, even pinch a pair of elastic stop plate 11 with finger as shown in the arrow of Fig. 4, finger can not contact above-mentioned electro-mechanical part yet, can carry out safe operation.
For other position of above-mentioned protective cover 1, its function, effect etc. are described below.
In Fig. 1, connect hole 100a, hole 110a, hole 130a that surface protection wall 14 arranges, in the situation that portion of terminal is made up of screw, can inserts the instruments such as screwdriver and rotate above-mentioned screw, so that above-mentioned screw is unclamped or to be tightened.
Above-mentioned hole 100a, hole 110a, the corresponding screw of hole 130a represent with screw 100b, screw 110b, screw 130b respectively in Fig. 3.
By above-mentioned hole 100a, hole 110a, hole 130a are set, even under the state that above-mentioned protective cover 1 is installed on the electric equipments such as electromagnetic contactor, also can see above-mentioned screw 100b, screw 110b, the screw 130b of portion of terminal.Therefore,, by above-mentioned screw 100b, screw 110b, screw 130b, can easily confirm whether connecting line has been fixed rightly.Its result, makes the detection of the portion of terminal of electric equipment, attended operation easier than in the past, can be expected to the improvement of implementation efficiency.
In addition, as shown in Figure 1, on surface protection wall 14, be provided with the extension 140 of extension.As shown in Figure 4, can make above-mentioned extension 140 clip displacement transmission (displacement-transmitting) portion 400, above-mentioned protective cover 1 is installed.Therefore, by engaging of above-mentioned extension 140 and displacement transfer part 400, be expected to reduce protective cover 1 disengaging in X-direction, Y direction or vibration with respect to above-mentioned electric equipment, reduce rotation or vibration around Z axis.
In addition,, by making the shape of shell 2 symmetrical in Y direction (with respect to the shape of X-axis turnover) of electric equipment, above-mentioned protective cover 1 can be as shown in Figure 4 to install from the mode of clamping up and down displacement transfer part 400.
At this, above-mentioned displacement transfer part 400 is to be connected with other selectable unit (SU) on the top of electric equipment, the part of moving when the displacement that this selectable unit (SU) is produced is delivered to above-mentioned electric equipment.
When above-mentioned protective cover 1 is when installing from the mode of clamping up and down displacement transfer part 400, even if the different electric equipment of the length of extending in Y direction for displacement transfer part 400 also can be installed above-mentioned protective cover 1.
Now, no matter the design of above-mentioned protective cover 1, structure, preferably install or be installed to electric equipment from downside from upside, from visually, coordinates.For example, can enumerating trade mark (logo), word, numeral, not to be located at the surface of surface protection wall 14 upper with parallel plane of XY, and be provided in a side of side with parallel plane of ZY on.In addition the groove 21 being located on shell 2, is located at upside and downside as shown in Figure 3 symmetrically.
In addition, as shown in Figure 2, Figure 3, Figure 4, on protective cover 1, be provided as the sidewall 200 with parallel plane of YZ.In the time there is this sidewall 200, can avoid finger to wait from electro-mechanical parts such as X-direction contact terminal portions, can improve fail safe.
Further, as shown in Figure 4, by adopting sidewall 200 to be fastened on the engaging shape on shell 2, protective cover 1 also can be by shell 2 and by suitably fixing and supporting of electric equipment on side.
In addition, as shown in Figure 4, the X-direction of protective cover 1 and shell 2 is of a size of same size., owing to being same widths, mutually outstanding on both faces, also no problem while therefore miscellaneous equipment being set on control panel etc., outward appearance is also attractive in appearance.
For example, in the situation that above-mentioned width is different, will produce jump, and can be contemplated to operator's hand while operation and collide the danger of this jump, or adhere to the problems such as dust in this jump part.But, by being as shown in Figure 4 same widths, be difficult to produce the problems referred to above.
In addition,, for secure context, owing to adopting the structure that elastic stop plate 11 is outstanding from surface protection wall 14 and must make a pair of elastic stop plate 11 deflections just can take off simultaneously, be therefore difficult to occur by mistake coming off of the protective cover 1 that causes because of the power of unexpected outside.
Claims (3)
1. an electric equipment protective cover, protection has the portion of terminal of the electric equipment of the portion of terminal being connected with main circuit, it is characterized in that:
Described protective cover has a pair of elastic stop plate extending along the direction parallel with the flow direction of the electric current of described main circuit,
At elastic stop plate, in the position being fixed from described elastic stop plate to bearing of trend away from position be provided with jut,
Engage with the notch part that is arranged at described electric equipment by described jut, described protective cover is supported by described electric equipment,
On vertical with described bearing of trend and vertical with the depth direction going to set installation surface from the surface element of described electric equipment direction; make leading section deflection centered by the fixed position of described elastic stop plate of described elastic stop plate; thus; described jut becomes from the state engaging with the notch part that is arranged at described electric equipment the state not engaging; described protective cover does not become and is supported by described electric equipment
By by operator with finger by the leading section of a pair of described elastic stop plate in close direction deflection, described protective cover does not become and is supported by described electric equipment.
2. electric equipment protective cover as claimed in claim 1, is characterized in that:
Be provided with the limiting wall of the size of the deflection of the leading section of the described elastic stop plate of restriction.
3. electric equipment protective cover as claimed in claim 2, is characterized in that:
Described limiting wall has the face parallel with described elastic stop plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010254377A JP5557706B2 (en) | 2010-11-15 | 2010-11-15 | Protective cover for electrical equipment |
| JP2010-254377 | 2010-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102468064A CN102468064A (en) | 2012-05-23 |
| CN102468064B true CN102468064B (en) | 2014-07-30 |
Family
ID=46071567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110206183.9A Active CN102468064B (en) | 2010-11-15 | 2011-07-15 | Protective cover of electrical device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5557706B2 (en) |
| CN (1) | CN102468064B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745887B (en) * | 2014-01-14 | 2015-11-25 | 德力西电气有限公司 | A kind of protective cover rotates assembly structure and has the contactor of this structure |
| CN113763789B (en) * | 2021-09-03 | 2023-04-21 | 宁波群芯微电子股份有限公司 | Wavelength detection reaction terminal for photoelectric conversion of nonlinear photoelectric coupler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645204Y (en) * | 2003-07-30 | 2004-09-29 | 李富雄 | Switch and switch box embedding arrangement |
| CN101662092A (en) * | 2008-08-26 | 2010-03-03 | 松下电工株式会社 | Wiring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2570384Y2 (en) * | 1991-01-19 | 1998-05-06 | 河村電器産業株式会社 | Terminal block cover structure of circuit breaker |
| JP3618544B2 (en) * | 1998-03-30 | 2005-02-09 | 三菱電機株式会社 | Terminal cover for electrical equipment |
-
2010
- 2010-11-15 JP JP2010254377A patent/JP5557706B2/en active Active
-
2011
- 2011-07-15 CN CN201110206183.9A patent/CN102468064B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645204Y (en) * | 2003-07-30 | 2004-09-29 | 李富雄 | Switch and switch box embedding arrangement |
| CN101662092A (en) * | 2008-08-26 | 2010-03-03 | 松下电工株式会社 | Wiring device |
Non-Patent Citations (1)
| Title |
|---|
| JP实开平4-98240U 1992.08.25 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102468064A (en) | 2012-05-23 |
| JP2012104768A (en) | 2012-05-31 |
| JP5557706B2 (en) | 2014-07-23 |
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