CN204189717U - A kind of pedestal of miniature electro-magnetic relay - Google Patents
A kind of pedestal of miniature electro-magnetic relay Download PDFInfo
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- CN204189717U CN204189717U CN201420562195.4U CN201420562195U CN204189717U CN 204189717 U CN204189717 U CN 204189717U CN 201420562195 U CN201420562195 U CN 201420562195U CN 204189717 U CN204189717 U CN 204189717U
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Abstract
A kind of pedestal of miniature electro-magnetic relay, which is provided with the first through hole that a row installs the first static contact spring piece, second through hole of one row's installation second static contact spring piece, the central through hole be arranged on the center line A-A of pedestal of an installation yoke, one row installs the third through-hole of coil terminal pin and the fourth hole of row's installation movable contact spring terminal pin, the first described through hole second through hole, third through-hole, the parallel mutually and spaced apart setting of fourth hole, each third through-hole, each fourth hole is symmetricly set on the both sides of central through hole, described pedestal also comprises multiple hollow slotted eye being symmetrical in base central line A-A and arranging, they transversely or are longitudinally evenly distributed on pedestal, for preventing the transverse direction of pedestal or longitudinal injection molding deformation.Adopt pedestal of the present utility model, while guarantee pedestal intensity, improve rate of finished products, saved raw material.
Description
Technical field
The utility model belongs to relay system technology for making field, relates to a kind of electromagnetic relay, particularly a kind of pedestal of miniature electro-magnetic relay.
Background technology
Electromagnetic relay is a kind of electronic control device, it has control system (also known as input circuit) and by control system (also known as output loop), usually be applied in automatic control circuit, it is actually goes to control larger current with less electric current.Miniature electro-magnetic relay comprises the parts such as pedestal, coil block, yoke, iron core, armature, insulation spacer, movable contact spring, static contact spring piece and multiple pin for inside and outside electrical connection, and these parts are generally all arranged on the pedestal of relay.Because being fixedly connected with of pedestal and correlated parts is all realize locating by the installing hole be set in advance on pedestal and fixing, therefore the site error between relevant installing hole directly can affect the matching property between each action piece of miniature electro-magnetic relay, and these matching properties are the keys of the Performance and quality determining miniature electro-magnetic relay, in view of miniature electro-magnetic relay is smaller and accurate, so need during fabrication strictly to control the site error of the installing hole on pedestal.
In mass automatic production process, the shaping of pedestal adopts injection molding process usually, due to contraction distortion easy after original base construction injection moulding, and large, the very difficult control of this contraction distortion randomness, so when being assembled into relay finished product on the pedestal be out of shape, large on the impact of the site error between described installing hole, the spacing dimension needed for the fixed contact between two static contact spring pieces is usually made to reduce, affecting the electrical endurance of product, is also cause that base part scrappage is high, Product Assembly reprocesses one of high principal element.In order to save injected plastics material and alleviate pedestal weight, market has the technology application of offering groove or step on pedestal, but this application is only limitted to the requirement of mechanical strength meeting pedestal at present, not yet further investigate the impact for the structure precision of pedestal of groove or step, in fact this research is very difficult, because the groove on certain concrete object (pedestal as miniature electro-magnetic relay) or step can affect which performance of mechanism's (actuating mechanism as miniature electro-magnetic relay), again how to affect the problems such as these performances, it is more complicated.Just based on this complexity, the existing very possible formed precision with improving pedestal of scheme based on saving groove that material and weight reduction offer or step runs in the opposite direction, and is disadvantageous in other words for solution injected plastics material problem on deformation.
Utility model content
Overcome the defect of prior art, the purpose of this utility model is the pedestal providing a kind of miniature electro-magnetic relay, it is provided with the slotted hole structure that can reduce vertical or horizontal contraction distortion, significantly can reduce the distortion of pedestal post molding shrinkage, improve life of product, and decrease raw material usage, while enhancing productivity, can also save production cost.
For achieving the above object, the utility model have employed following technical scheme.
A kind of pedestal of miniature electro-magnetic relay, which is provided with the first through hole 12 that a row installs the first static contact spring piece 2, second through hole 13 of one row's installation second static contact spring piece 3, the central through hole 11 be arranged on the center line A-A of pedestal of an installation yoke, one row installs the third through-hole 14 of coil terminal pin 4 and the fourth hole 15 of row's installation movable contact spring terminal pin, the first described through hole 12 second through hole 13, third through-hole 14, the parallel mutually and spaced apart setting of fourth hole 15, each third through-hole 14, each fourth hole 15 is symmetricly set on the both sides of described central through hole 11, it is characterized in that: described pedestal also comprises multiple hollow slotted eye being symmetrical in base central line A-A and arranging, they transversely or are longitudinally evenly distributed on pedestal, for preventing the transverse direction of pedestal or longitudinal injection molding deformation.
According to a kind of execution mode: described hollow slotted eye comprises the first slotted eye Y1 being arranged on the reduced longitudinal contraction between the first through hole 12 and the second through hole 13 and being out of shape, each first slotted eye Y1 transversely X arrangement, and extend to or extend the external boundary B-B that outermost first through hole 12 or the second through hole 13 limit, and/or the second slotted eye Y2 that the reduced longitudinal contraction be arranged between the second through hole 13 and central through hole 11 is out of shape, each second slotted eye Y2 transversely X arrangement, and extend to or extend the external boundary B-B that outermost first through hole 12 or the second through hole 13 limit.
According to another execution mode: described hollow slotted eye also comprises the 3rd slotted eye X1 that a row is symmetricly set on the reduced cross-direction shrinkage distortion of the both sides of central through hole 11.
According to another execution mode: described hollow slotted eye also comprises the 4th slotted eye Y3 that a row is arranged on the reduced longitudinal contraction distortion in the longitudinally outside of the first described through hole 12, each 4th slotted eye Y3 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole 12 or the second through hole 13 limit.
According to another kind of execution mode: described hollow slotted eye also comprises the 5th slotted eye X3 that a row is symmetricly set on the both sides of central through hole 11, each 5th slotted eye X3 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole 12 or the second through hole 13 limit.
According to a kind of preferred implementation: be symmetrical in base central line A-A in the longitudinal direction outside of described central through hole 11 and be also provided with the location notch hole 10 that a row installs yoke, the transversely X arrangement of each location notch hole 10.
According to another kind of preferred implementation: in the bilateral symmetry of described central through hole 11, base central line A-A is provided with L shape convex tendon X2, the rectangular direction of L shape convex tendon X2 is symmetrical in central through hole 11 and longitudinally stretches, the billet direction all transversely X stretching, extension of L shape convex tendon X2.
Preferred: described each first slotted eye Y1 is symmetrical in base central line A-A.
Preferred: described each second slotted eye Y2 is symmetrical in base central line A-A.
Preferred further: the fourth hole 15 of described installation movable contact spring terminal pin is arranged between the second slotted eye Y2 and the 3rd slotted eye X1, the transversely X arrangement of each fourth hole 15.
The pedestal of miniature electro-magnetic relay of the present utility model, the setting of its hollow-core construction is the ingenious improvement of structure based on miniature electro-magnetic relay and action feature, greatly reduce the scrappage of pedestal, repair rate and the impact for the relay product life-span, thus assembling finished product efficiency is high, practical and convenient, while ensureing that product has enough mechanical strengths, also avoid the wasting of resources, for reducing the site error of the relevant installing hole that the contraction distortion of pedestal causes and they all have good technique effect to the impact of the performance of miniature electro-magnetic relay.
Accompanying drawing explanation
More clearly advantages and features of the invention can be found out from the description of accompanying drawing illustrated embodiment, wherein:
Fig. 1 is the assembly perspective view of the pedestal of miniature electro-magnetic relay of the present utility model.
Fig. 2 is the floor map of the pedestal of miniature electro-magnetic relay of the present utility model.
Embodiment
Below in conjunction with the embodiment that Fig. 1 to Fig. 2 provides, further illustrate the embodiment of the pedestal of miniature electro-magnetic relay of the present utility model.The pedestal of miniature electro-magnetic relay of the present utility model is not limited to the description of following examples.
First static contact spring piece, the second static contact spring piece and the mounting structure of coil lead pin on pedestal have been shown in the assembly perspective view of Fig. 1, illustrated in the floor map of Fig. 2 for install the first static contact spring piece, the second static contact spring piece, yoke, coil lead pin, movable contact spring terminal pin various through hole and for reduce contraction distortion various slotted eyes between position relationship.See Fig. 1,2, the pedestal 1 of miniature electro-magnetic relay of the present utility model is provided with a row and installs the third through-hole 14 being arranged on central through hole 11, the row installation coil terminal pin 4 on the center line A-A of pedestal of the second through hole 13, installation yoke of the first through hole 12, row installation second static contact spring piece 3 of the first static contact spring piece 2 and the fourth hole 15 of row's installation movable contact spring terminal pin, and each parts of miniature electro-magnetic relay are installed on pedestal 1 by these through holes.The parallel mutually and spaced apart setting of the first described through hole 12 second through hole 13, third through-hole 14, fourth hole 15, each third through-hole 14, each fourth hole 15 are symmetricly set on the both sides of described central through hole 11, described pedestal also comprises multiple hollow slotted eye being symmetrical in base central line A-A and arranging, they transversely or are longitudinally evenly distributed on pedestal, for preventing the transverse direction of pedestal or longitudinal injection molding deformation.Specifically see Fig. 2, in order to reduce the range error between the first through hole 12 of being caused by contraction distortion and the second through hole 13, the utility model is provided with a row between the first through hole 12 and the second through hole 13 can reduce the first slotted eye Y1 that longitudinal contraction is out of shape, each first slotted eye Y1 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole 12 or the second through hole 13 limit.One quantity that ranked first slotted eye Y1 is not defined as 2 shown in Fig. 2, each first slotted eye Y1 transversely X arrangement, refer to the orientation along being parallel to the first through hole 12 and the second through hole 13, in other words, the orientation of described horizontal X is exactly the orientation of the first through hole 12 and the second through hole 13.Shown in Fig. 2 two the first slotted eye Y1 extends the external boundary B-B that outermost first through hole 12 or the second through hole 13 limit respectively, obviously this is also from the effect reducing contraction distortion, to make consistent as far as possible with centre of outermost first through hole 12 and the degree that the contraction distortion of the second through hole 13 reduces, this structure is particularly more necessary when the quantity of the first slotted eye Y1 is greater than 2.Certainly, the first slotted eye Y1 is also allowed to extend to external boundary B-B (figure China and foreign countries illustrate).In like manner, in order to reduce the range error between the second through hole 13 of being caused by contraction distortion and central through hole 11, the utility model is provided with a row between the second through hole 13 and central through hole 11 can reduce the second slotted eye Y2 that longitudinal contraction is out of shape, each second slotted eye Y2 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole 12 or the second through hole 13 limit.Relational term involved by this is identical with the definition of above-mentioned explanation.Should understand, the quantity of the first through hole 12 is that the number of poles controlled according to electromagnetic relay is correlated with, and the quantity that ranked second the second through hole 13 in through hole 13 is mated with the quantity of the first through hole 12, as shown in the embodiment of fig. 1, the quantity of the first through hole 12 is 2, but can be more (not shown).
Applicant thinks after researching and analysing in conjunction with the structure of miniature electro-magnetic relay and action feature: the site error between each through hole mainly comprises following factor for the impact of the operating characteristics of miniature electro-magnetic relay.One of factor is, range error between first through hole 12 and the second through hole 13, direct affect movable contact spring (not shown) with the journey error close/be separated between the first static contact spring piece 2 with the second static contact spring piece 3, this error directly affects the reliability of contact between movable contact spring with the first static contact spring piece 2, second static contact spring piece 3/be separated, and also affects the synchronism that each pole movable contact spring contacts with the first respective static contact spring piece 2, second static contact spring piece 3/is separated simultaneously.Described contact reliability inefficacy main manifestations is loose contact, and the lighter causes temperature rise and load-carrying ability to decline, and the potential safety hazard of sparking appears in severe one; Described separation reliability failures main manifestations is that separating distance diminishes to being less than safe insulation distance, makes contact lose breaking capacity, also there is potential safety hazard simultaneously; The control performance of described synchronism major effect electromagnetic relay, in some use occasion, the bad normal work that can affect electromagnetic relay of the change of synchronism.Two of factor is, range error between second through hole 13 and central through hole 11, also movable contact spring and the first static contact spring piece 2 can directly be affected, the reliability of the contact/separation between the second static contact spring piece 3 and synchronism, because movable contact spring supports in turnover mode and is arranged in yoke, and yoke is achieved a fixed connection by central through hole 11 and pedestal 1 and is located, therefore, range error between second through hole 13 and central through hole 11 directly affects the positional precision of movable contact spring between the first static contact spring piece 2 and the second static contact spring piece 3, obviously this precision directly affects reliability and the synchronism of described contact/separation.Three of factor is, the site error of the horizontal X-direction of central through hole 11 shown in Fig. 1, it is not parallel that this error can cause between the movable contact spring of in a row assembling and the first static contact spring piece 2, second static contact spring piece 3 in a row installed, obvious this parallelism error also directly can affect reliability and the synchronism of described contact/separation, particularly adopt in the yoke mounting structure of multipoint positioning, the impact of this factor is more obvious.In order to overcome the problems referred to above of existing product, the utility model on pedestal 1 except be provided with install yoke central through hole 11 except, also be provided with in the longitudinal direction outside of described central through hole 11 location notch hole 10 that a row installs yoke, the transversely X arrangement of each location notch hole 10, central through hole 11 is arranged on the center line A-A of pedestal, and each location notch hole 10 is symmetrical in base central line A-A.Obviously, because location notch hole 10 is all fixedly connected with yoke with central through hole 11, therefore, the site error between this some holes can cause two influencing factors, wherein: one is the assembly properties between yoke and pedestal, this factor solves by coordinating tolerance; Another is the installation accuracy between yoke and pedestal, and if yoke is around the offset error of the axis of central through hole 11, it is not parallel that this error also can cause between movable contact spring in a row and the first static contact spring piece 2, second static contact spring piece 3 in a row.And the utility model have selected three-point fix structure as shown in Figure 2, strengthen and be fixedly connected with intensity and positioning precision between yoke with pedestal 1.
In order to reduce the central through hole 11 that caused by the contraction distortion site error in horizontal X-direction further, the utility model also can be respectively equipped with the 3rd slotted eye X1 that can reduce cross-direction shrinkage distortion in the both sides of central through hole 11, the 3rd slotted eye X1 of both sides is symmetrical in central through hole 11.Obviously, two the 3rd slotted eye X1 are separately positioned on the both sides of central through hole 11, the i.e. structure of transversely X-direction spread configuration, the contraction distortion of the transversely X-direction of central through hole 11 both sides can be reduced, the deformation displacement of the central through hole 11 caused with the contraction distortion reduced due to this horizontal X-direction transversely X-direction.In addition, the 3rd slotted eye X1 of both sides is symmetrical in central through hole 11, and the contraction distortion of the remnants of the transversely X-direction of central through hole 11 both sides can be made to balance, and this balance can play the effect preventing central through hole 11 from offseting to one side.
In order to reduce the range error between the first through hole 12 of being caused by contraction distortion and the second through hole 13 further, a kind of scheme adopted of selecting is, in (the i.e. outside of longitudinally Y-direction, longitudinally outside of the first described through hole 12, longitudinal Y is perpendicular to horizontal X) be also provided with the 4th slotted eye Y3 that a row can reduce longitudinal contraction distortion, each 4th slotted eye Y3 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole 12 or the second through hole 13 limit.Should understand: the effect of the first slotted eye Y1 is mainly the contraction distortion between reduction first through hole 12 and the second through hole 13, range error between the first through hole 12 that this contraction distortion causes and the second through hole 13 is negative error, namely causes the error that the distance between the first through hole 12 and the second through hole 13 reduces.The effect of the second slotted eye Y2 is mainly the contraction distortion between reduction second through hole 13 and central through hole 11, range error between the second through hole 13 that this contraction distortion causes and central through hole 11 is also negative error, namely the error that the distance between the second through hole 13 and central through hole 11 reduces is caused, but, because the second through hole 13 is between the first through hole 12 and central through hole 11, therefore, second slotted eye Y2 is for reducing the function of the negative range error between the second through hole 13 and central through hole 11, also be the function of the positive range error between reduction first through hole 12 and the second through hole 13 in fact, namely the error that the distance between the first through hole 12 and the second through hole 13 is amplified is caused.The effect of the 4th slotted eye Y3 is mainly the contraction distortion in the longitudinal outside of reduction first through hole 12, range error between the first through hole 12 that this contraction distortion causes and the second through hole 13 is also positive error, namely causes the error that the distance between the first through hole 12 and the second through hole 13 is amplified.Preferred scheme comprises further: described hollow slotted eye also comprises the 5th slotted eye X3 that a row is symmetricly set on the both sides of central through hole 11, each 5th slotted eye X3 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole 12 or the second through hole 13 limit.
In order to not reduce the mechanical strength of pedestal while reducing to cause the site error on pedestal between parts by contraction distortion, a kind of scheme shown in Fig. 2 adopted of selecting is, the L shape convex tendon X2 strengthened is provided with in base central line A-A in the bilateral symmetry of described central through hole 11, the rectangular direction of L shape convex tendon X2 is symmetrical in central through hole 11 and longitudinally stretches, the billet direction all transversely X stretching, extension of L shape convex tendon X2.The billet direction that the 5th described slotted eye X3 is close to described L shape convex tendon X2 is arranged.
The feature of design of the present utility model is to offer the specific hollow recess of the contraction distortion impact that can improve pedestal on specific pedestal 1 position, is also to avoid or reduce the impact of the contraction distortion factor caused by other slotted eye on pedestal 1 for relay performance simultaneously.In fact, the slotted eye design on the pedestal of existing miniature electro-magnetic relay not only can not play the effect improving electric property, on the contrary, may play for the disadvantageous effect of electric property.For this reason, the utility model additionally provides the following structure selecting to adopt, with prevent the various slotted eyes on pedestal because of position unreasonable caused for electric property adverse influence.
A kind of available scheme is, the third through-hole 14 installing coil terminal pin 4 is arranged on the both sides of central through hole 11, and each third through-hole 14 is symmetrical in central through hole 11.Obviously, this structure not only facilitates the wiring of coil lead pin 4 and coil (not shown), and the contraction distortion factor caused by third through-hole 14 can also be made to obtain autobalance.
Another kind of available scheme is that the fourth hole 15 installing movable contact spring terminal pin is arranged between the second slotted eye Y2 and the 3rd slotted eye X1, the transversely X arrangement of each fourth hole 15.Obviously, this structure not only facilitates the wiring of movable contact spring terminal pin and movable contact spring (not shown), and the contraction distortion factor caused by fourth hole 15 can also be made to obtain autobalance.
Some available schemes are again: each first through hole 12, each second through hole 13 and central through hole 11 are symmetrical in base central line A-A separately respectively; Each first slotted eye Y1 is symmetrical in base central line A-A, and each second slotted eye Y2; Be symmetrical in base central line A-A; Each third through-hole 14 claims in base central line A-A; Each fourth hole 15 is symmetrical in base central line A-A.Obviously, various slotted eye, through hole are symmetrical in base central line A-A and arrange, its effect is that the contraction distortion amount in horizontal X-direction that they produce is symmetrical in center line A-A, balance in other words conj.or perhaps, therefore, the contraction distortion factor caused by various slotted eye, through hole can be narrowed down to minimum degree for the adverse effect of electric property by this symmetrical structure.Certainly, above-mentioned symmetrical structure, comprises even number type symmetry and odd number type symmetry: in even number type symmetry, the slotted eye number on center line A-A both sides is equal, and center line A-A does not establish slotted eye; In odd number type symmetry, the slotted eye number on center line A-A both sides is equal, but center line A-A establishes slotted eye.
The foregoing is only preferred embodiment of the present utility model, all technical equivalences made according to the utility model claim change and amendment, all should be considered as within covering scope of the present utility model.
Claims (10)
1. the pedestal of a miniature electro-magnetic relay, which is provided with the first through hole (12) that a row installs the first static contact spring piece (2), second through hole (13) of one row's installation second static contact spring piece (3), the central through hole (11) be arranged on the center line A-A of pedestal of an installation yoke, one row installs the third through-hole (14) of coil terminal pin (4) and the fourth hole (15) of row's installation movable contact spring terminal pin, the first described through hole (12) second through hole (13), third through-hole (14), the parallel mutually and spaced apart setting of fourth hole (15), each third through-hole (14), each fourth hole (15) is symmetricly set on the both sides of described central through hole (11), it is characterized in that: described pedestal also comprises multiple hollow slotted eye being symmetrical in base central line A-A and arranging, they transversely or are longitudinally evenly distributed on pedestal, for preventing the transverse direction of pedestal or longitudinal injection molding deformation.
2. the pedestal of miniature electro-magnetic relay according to claim 1, it is characterized in that: described hollow slotted eye comprises the first slotted eye Y1 that the reduced longitudinal contraction be arranged between the first through hole (12) and the second through hole (13) is out of shape, each first slotted eye Y1 transversely X arrangement, and extend to or extend the external boundary B-B that outermost first through hole (12) or the second through hole (13) limit, and/or the second slotted eye Y2 that the reduced longitudinal contraction be arranged between the second through hole (13) and central through hole (11) is out of shape, each second slotted eye Y2 transversely X arrangement, and extend to or extend the external boundary B-B that outermost first through hole (12) or the second through hole (13) limit.
3. the pedestal of miniature electro-magnetic relay according to claim 1 and 2, is characterized in that: described hollow slotted eye also comprises the 3rd slotted eye X1 that a row is symmetricly set on the reduced cross-direction shrinkage distortion of the both sides of central through hole (11).
4. the pedestal of miniature electro-magnetic relay according to claim 1 and 2, it is characterized in that: described hollow slotted eye also comprises the 4th slotted eye Y3 that a row is arranged on the reduced longitudinal contraction distortion in the longitudinally outside of described the first through hole (12), each 4th slotted eye Y3 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole (12) or the second through hole (13) limit.
5. the pedestal of miniature electro-magnetic relay according to claim 1 and 2, it is characterized in that: described hollow slotted eye also comprises the 5th slotted eye X3 that a row is symmetricly set on the both sides of central through hole (11), each 5th slotted eye X3 transversely X arrangement, and the external boundary B-B extending to or extend that outermost first through hole (12) or the second through hole (13) limit.
6. the pedestal of miniature electro-magnetic relay according to claim 1, it is characterized in that: be symmetrical in base central line A-A in the longitudinal direction outside of described central through hole (11) and be also provided with the location notch hole (10) that a row installs yoke, each location notch hole (10) transversely X arrangement.
7. the pedestal of miniature electro-magnetic relay according to claim 1, it is characterized in that: in the bilateral symmetry of described central through hole (11), base central line A-A is provided with L shape convex tendon X2, the rectangular direction of L shape convex tendon X2 is symmetrical in central through hole (11) and longitudinally stretches, the billet direction all transversely X stretching, extension of L shape convex tendon X2.
8. the pedestal of miniature electro-magnetic relay according to claim 2, is characterized in that: described each first slotted eye Y1 is symmetrical in base central line A-A.
9. the pedestal of miniature electro-magnetic relay according to claim 2, is characterized in that: described each second slotted eye Y2 is symmetrical in base central line A-A.
10. the pedestal of miniature electro-magnetic relay according to claim 3, it is characterized in that: the fourth hole (15) of described installation movable contact spring terminal pin is arranged between the second slotted eye Y2 and the 3rd slotted eye X1, each fourth hole (15) transversely X arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562195.4U CN204189717U (en) | 2014-09-26 | 2014-09-26 | A kind of pedestal of miniature electro-magnetic relay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562195.4U CN204189717U (en) | 2014-09-26 | 2014-09-26 | A kind of pedestal of miniature electro-magnetic relay |
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| CN204189717U true CN204189717U (en) | 2015-03-04 |
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| CN201420562195.4U Active CN204189717U (en) | 2014-09-26 | 2014-09-26 | A kind of pedestal of miniature electro-magnetic relay |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914102A (en) * | 2016-06-21 | 2016-08-31 | 西安宏发电器有限公司 | Relay pedestal |
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2014
- 2014-09-26 CN CN201420562195.4U patent/CN204189717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914102A (en) * | 2016-06-21 | 2016-08-31 | 西安宏发电器有限公司 | Relay pedestal |
| CN105914102B (en) * | 2016-06-21 | 2018-05-15 | 西安宏发电器有限公司 | A kind of relay base |
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