CN103247875B - Terminal block data transmission bus structure and terminal block using same - Google Patents
Terminal block data transmission bus structure and terminal block using same Download PDFInfo
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- CN103247875B CN103247875B CN201210030593.7A CN201210030593A CN103247875B CN 103247875 B CN103247875 B CN 103247875B CN 201210030593 A CN201210030593 A CN 201210030593A CN 103247875 B CN103247875 B CN 103247875B
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- terminal board
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- splicing ear
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Abstract
The invention discloses a terminal block data transmission bus structure. The bus structure comprises a main body and at least two conductive bars, wherein the main body can be embedded in the fixed track of a terminal block; a plurality of grooves are formed in the main body; the conductive bars can be embedded in the grooves of the main body to form guide rails. The terminal block data transmission bus structure adopts the conductive bars as a bus line, not only provides a power supply and signal transmission for a bus, but also provides solid sliding supports for a plurality of terminal blocks to enable the terminal blocks to be arranged side by side and share the terminal block data transmission bus structure.
Description
Technical field
The present invention relates to a kind of terminal board data transmission bus structure of novelty, and use the terminal board of this data transmission bus structure, particularly relate to a kind of data transmission bus structure coupled for multiple terminal board, and use the terminal board of this data transmission bus structure.
Background technology
Terminal board is a kind of part being widely used in various Work machine, is used for the power line of link two groups or more, control line and or data line.Typically, on a Work machine, need use tens of to hundreds of terminal boards, to provide power supply and control or data-signal.The Work machine of complexity operation and control, usually need to make the terminal board of 2 groups or more to do horizontal coupling, with shared power supply, data or control signal.
Prior art, coupling in the practice of terminal board, mainly comprises two kinds.The first provides a connector at terminal board, and this connector provides the insulating body of one group of multiple T-shaped splicing ear and coated the plurality of T-shaped splicing ear.This insulating body provides 3 groups of docking sections, wherein, forms the coupling structure of a male mother in 2 groups of docking sections of T-shaped horizontal direction, and for the most connector of series winding, and docking section in the vertical direction, be then used for being connected to the circuit of terminal board inside.This design can United States Patent (USP) case 7,704,079 (denomination of invention: T-Shaped Shielded Bus Connector) representatively.The structure of this T-shaped splicing ear and method for making, then can with reference to United States Patent (USP) 6, the disclosure of 033, No. 264 (denominations of invention: Electrical or Electronic Device for Seating on a Mounting Rail and Process for Producing Same).
The another kind of practice can be described as the design of " bus-type ".Representational structure can see United States Patent (USP) 5, the disclosure of 716, No. 241 (denominations of invention: I/O Device for Data Bus).Describing according to this patent, is provide a total trajectory, is used for the dismountable slip of terminal board is fixed thereon.This total trajectory provides bus structures, provides a connector at this terminal board, in order to couple this bus-structured wire simultaneously.The multiple conducting wires that these bus structures comprise a circuit board and formed on the board, parallel to each other between wire, distance is approximately identical.This connector comprises the insulating body of multiple splicing ear and coated the plurality of splicing ear.Insulating body provides 2 groups of docking sections.Wherein one group is connected to the internal wiring of this terminal board, and another group is used for making the splicing ear in it to contact wire in these bus structures.For making the wire in splicing ear and bus structures form good connection, the contact jaw of this splicing ear need arrange shell fragment, protrudes from this docking section, and crimps the wire in these bus structures.
The application that above-mentioned two kinds of practices can provide multiple terminal board to be laterally connected in series.But, use the practice of T-shaped splicing ear, structure is comparatively complicated.The making of its splicing ear has to pass through multiple step, sometimes must use multiple terminal part, and the insulating body of its connector usually cannot be one-body molded, causes material cost and assembling to improve man-hour.Relative to the practice using T-shaped splicing ear, the design of bus-type has advantage.This is because industrially there is the application that use one standard type guide rail carrys out mounting terminal platform already, the design of bus-type is bus structures be arranged in this guide rail.Again because using bus structures, the structure of the splicing ear of its connector can comparatively simplify.But, under the design of this bus-type, the wire in splicing ear and bus structures, not easily maintains stable contact.And because using shell fragment to improve contact effect, making again connecting terminal structure become complicated, increasing assembly, and raise the cost.
Therefore, the terminal board data transmission bus structure that a kind of novelty is provided is necessary, to reach object in electrical contact firm between splicing ear and bus structures wire in fact at present.
Also need a kind of terminal board data transmission bus structure of novelty, material that can be cheap, simple making is implemented simultaneously.
Also need a kind of terminal board data transmission bus structure of novelty simultaneously, the connector of designs simplification and splicing ear can be utilized to make.
Summary of the invention
The object of the present invention is to provide a kind of terminal board data transmission bus structure of novelty, to reach object in electrical contact firm between splicing ear and bus structures wire.
Object of the present invention is also the terminal board data transmission bus structure providing a kind of novelty, can with the material of cheapness, and simple making is implemented.
Object of the present invention is also the terminal board data transmission bus structure providing a kind of novelty, and the connector of designs simplification and splicing ear can be utilized to make.
According to terminal board data transmission bus structure of the present invention, comprising:
One body, in order to embed in a terminal board trapped orbit, this body forms multiple groove; And
At least 2 buss, it is formed as embedding in the groove on this body, forms guide rail.
This terminal board data transmission bus structure also can comprise the connecting piece be arranged on body, is fixed in this terminal board trapped orbit in order to be fixed by this body or to slide.This connecting piece can be fastener, and can with this this body by integral forming.This terminal board data transmission bus structure also can comprise at least 1 non-conductive strip, and it is formed as embedding in the groove on this body, jointly forms guide rail with these at least 2 buss.
Terminal board data transmission bus structure of the present invention separately can comprise a connector, and this connector has:
Multiple splicing ear, the first end of each splicing ear can this bus in electrical contact and/or this non-conductive strip; And
Insulating body, coated the plurality of splicing ear, and multiple groove is provided, this bus and/or this non-conductive strip can be embedded in this groove.
In some examples of the present invention, the cell wall of the plurality of splicing ear and the plurality of groove can clamp this bus and/or this non-conductive strip jointly.In other example of the present invention, the plurality of splicing ear can clamp this bus and/or this non-conductive strip.
In example of the present invention, the second extreme direction of this splicing ear is formed orthogonal with this first end.
The present invention also provides the terminal board that can use above-mentioned terminal board data transmission bus structure.This terminal board comprises:
One circuit board, it can form necessary circuit, in order to connect at least 2 terminals; And
A connector, comprising: multiple splicing ear, and each splicing ear at least has first end and the second end, and this first end can a bus in electrical contact, and the second end is electrically connected the circuit on this circuit board; And insulating body, coated the plurality of splicing ear, and multiple groove is provided, this bus can be embedded in this groove.
Terminal board of the present invention also can comprise the housing of this circuit board coated.This housing can separately this connector coated be at least partially.This connector also can comprise fixed part, in order to fix on the board.
According to design of the present invention, this terminal board data transmission bus structure uses bus as bus line, except the power supply be provided as needed for bus and Signal transmissions, also can provide the sliding support that multiple terminal board is firm, multiple terminal board can be arranged side by side, and share these bus structures.In addition, this terminal board data transmission bus structure can embed on existing terminal board fixed rack, can utilize existing equipment and can not increase system space.This terminal board data transmission bus structure can improve the contact effect with splicing ear, and maintains stability in electrical contact.In addition, use bus/non-conductive strip and groove structure, more shape is free can to make bus-structured design, does not need to be limited to any ad hoc structure.
Accompanying drawing explanation
Fig. 1 shows terminal board data transmission bus structure of the present invention and uses the application schematic diagram of terminal board of this data transmission bus structure.
Fig. 2 shows the bus-structured end view of the present invention.
Fig. 3 shows the bus-structured cross-sectional view of the present invention.
Fig. 4 display application is in the present invention's bus-structured terminal board connector schematic appearance.
Fig. 4 A represents the splicing ear schematic shapes of this connector.
Fig. 5 shows the cross-sectional view of another Example bus structure of the present invention.
Primary clustering symbol description
10 terminal boards
11 circuit boards
12 housings
13,14 connecting holes
15,16 connecting portions
17,18 securing electric lines
20 connectors
21,22 splicing ears
21a, 21a bus end
21b, 21b terminal you
22,22 grooves
23 insulating bodies
30 bus structures
31 terminal board trapped orbits
31a, 31a alar part
32 bus structures bodies
33,33 multi-conducting bars
34,34 grooves
35,35 fixed parts
Embodiment
With example, terminal board data transmission bus structure of the present invention be described below and use the terminal board of this data transmission bus structure.Fig. 1 shows terminal board data transmission bus structure of the present invention and uses the application schematic diagram of terminal board of this data transmission bus structure.In figure, 10 represent terminal board, comprise circuit board 11 and housing 12.Housing 12 is established connecting hole 13,14; Circuit board 11 is established connecting portion 15,16, in order to connect and securing electric lines 17,18.Circuit board 11 is formed necessary circuit.
This connecting hole 13,14 can be formed with the integrated mode of this housing 12, possesses the suitable degree of depth, is firmly fixed on circuit board 11 to make this electric wire 17,18.This connecting portion 15,16 provides a conductor, is formed in electrical contact with electric wire 17,18.The modes such as this electric wire 17,18 can weld, are fixed on connecting portion 15,16.In addition, application also can utilize strangulation component (not shown), and be arranged at this connecting portion 15,16, to make electric wire 17,18 when linking with connecting portion 15,16, available hand-lifting removes, and removes its link.The structure of this kind of terminal board, is common in known technology, and can do necessary amendment in response to various needs.Its detailed materials, shape, structure, and even assembly additional in addition, all do not need to repeat at this.
Terminal board 10 is provided with connector 20 in the below of figure.Multiple splicing ear 21,22 is provided with, outward with insulating body 23 coated (separately seeing Fig. 4) in connector 20.One end of splicing ear 21,22 is connected to the circuit (not shown) on circuit board 11.This connector 20 one end connects this circuit board 11, outside connecting, also can utilize fixed part, as chimeric projection (non-icon) etc., further link, to strengthen connection relationship with the hole (not shown) on circuit board divided by connection line.
The bottom of Fig. 1 is bus structures 30, comprises the multi-conducting bar 33,33 on terminal board trapped orbit 31, bus structures body 32 and body.Wherein, this terminal board trapped orbit 31 is equipped with for the standard in terminal board application, is used for fixing multiple terminal board.The shape of this body 32 and size are preferably designed to and can be contained in this track 31, therefore the original space of utilisation system, and do not take additional space.This bus 33,33 is long strip type metal, can be embedded in groove 34,34 that body 32 is formed, and protrudes quite height, forms guide rail.According to design of the present invention, the groove 23,23 of approximately identical, the shape complementarity of quantity of formation on the insulating body 23 of this connector 20, can embed for this bus 33,33.Bus end 21a, 21a of this splicing ear 21,21 can form clamping components, to clamp this bus 33,33, on connector 20 is slidably fixed on guide rail that this bus 33,33 formed.
Under the another kind of practice, the groove cell wall on this insulating body 23 can clamp this bus 33,33 jointly with this splicing ear 21,21, on connector 20 is slidably fixed on guide rail that this bus 33,33 formed.Firm but the fixed form that can slide of formation like this.
The detailed configuration of bus structures 30 of the present invention and connector 20 is below described.
Fig. 2 shows the end view of bus structures 30 of the present invention, and Fig. 3 is its cross-sectional view.As shown in the figure, bus structures 30 comprise a body 32 and multiple bus 33,33.Bus 33,33 is the flat metal bars made with conducting metal, is embedded in multiple grooves 34,34 that body 32 is formed.The quantity of this bus 33,33 is not limited to them, if but these bus structures except signal transmission, also need to provide power supply, then the number needs of bus 33,33 will more than 2.The material of this bus 33,33 is not limited to them, as long as can provide the function of electrical conductivity, and provides suitable support to this terminal board 10.Typically, the material of this bus 33,33 is the metal or alloy with suitable rigidity.Make bar with other material, and at its outer cladding or metallizing or alloy, be also feasible.Other nonmetallic electric conducting material, is also applicable to the present invention.In other embodiments of the invention, and all place bus 33,33 in the groove 34,34 of not all.Particular groove 34,34 can be left a blank.In a further embodiment, part or all of bus 33,33 makes with nonconducting strip material, and in such an embodiment, non electrically conductive material bar is mainly used to provide support effect.If use partially conductive bar, part is non-conductive strip, then can utilize the function that non electrically conductive material bar provides support and recognizes.Upper all or part of of bus 33,33 (containing electrically non-conductive material bar) can impose color, to provide identification effect.In addition, if necessary, the bus 33,33 of wherein 2 or more also can be made to form short circuit, needed for application-specific.
Also the profile design showing this body 32 in figure becomes can embed in this terminal board trapped orbit 31.As previously mentioned, this terminal board trapped orbit 31 is the standard outfit in terminal board application.Its shape is generally the U-shaped of bottom flat.Its inside provides the mesa-shaped space of an inverted trapezoidal.According to embodiments of the invention, the shape of this body 32 and size are preferably set as and can embed in this mesa-shaped space, and body 32 can hold 8-10 bar bus.Divided by outside wherein 2 supply power supplys, also can provide 6-8 signal conductor, foot is for most application.The metal that the material of this terminal board trapped orbit 31 is normally cheap, the alloy of such as aluminium or aluminium.With other material, such as plastics, rubber, resin, timber, paper or other composite material make, and are also feasible.Certainly, this terminal board trapped orbit 31 is not limited to shape and the size of standard specification.If just identical with standard specification, then by bus structures body 32 on-line equipment of the present invention in this terminal board trapped orbit 31, can not need other making.Get its facility, not any technical restriction.
This body 32 is formed multiple groove 34,34.The practical practice be make the plurality of groove 34,34 and this body 32 one-body molded.But make the assembly comprising the plurality of groove 34,34 in addition, be fixed on by any way on this body 32, also belong to feasible.The material of this body 32 is preferably non electrically conductive material, such as plastics, rubber, resin, timber, paper or other composite material.Utilize electric conducting material to make, then with electrically non-conductive material its surface coated, also belong to feasible.The quantity of this groove 34,34 is not limited to them, but need provide enough bracing forces, to support the weight of this terminal board 10.But, multiple terminal board is normally fixed by application side by side, supports the strength of the plurality of terminal board, do not need all from this body 32.In addition, preferably reserve suitable distance between each groove, in order to avoid cause the bus in it to form mutually non-required short circuit, affect its performance.The number of recesses that can arrange in this body 32, depends on above condition, and the thickness of this bonding jumper and limitation in height.Can by designer from Row sum-equal matrix in application.
This bus structures body 32 can arrange fixed part 35,35, forms wing, across alar part 31a, 31a of hanging over this terminal board trapped orbit 31, and in the groove making this alar part 31a, 31a be embedded in be formed below this fixed part 35,35.Utilize the elasticity of this body 32 material, body 32 is fixed on this terminal board trapped orbit 31.But in another example of the present invention, this body 32 does not arrange fixed part 35,35, but is directly embedded in the mesa-shaped space in this terminal board trapped orbit 31, make the both sides of body 32 withstand two madial walls of this terminal board trapped orbit 31, fixed.Its mode as shown in Figure 5.(in Fig. 5 with the 2nd, assembly that 3 figure are identical, all compile with identical numbering.) certainly, in the 5 embodiment of figure 5, the both sides of this body 32 are not limited to withstand this terminal board trapped orbit 31 two madial walls.Make to leave clearance between the two, this body 32 can slide in terminal board trapped orbit 31, also belongs to feasible.
This terminal board data transmission bus structure also can comprise the connecting piece be arranged on body, is fixed in this terminal board trapped orbit in order to be fixed by this body or to slide.This connecting piece can be fastener, and can with this this body by integral forming.This terminal board data transmission bus structure also can comprise at least 1 non-conductive strip, and it is formed as embedding in the groove on this body, jointly forms guide rail with these at least 2 buss.
The plurality of bus 33,33 is embedded in the plurality of groove 34,34 respectively, namely forms bus structures 30 of the present invention.These bus structures 30 can separately comprise terminal board trapped orbit 31.
Fig. 4 display application is in the schematic appearance of the bus-structured terminal board connector 20 of the present invention.Fig. 4 A represents splicing ear 21,21 schematic shapes of this connector 20.As shown in the figure, this connector 20 comprises insulating body 23 and the multiple splicing ears in it 21,21.This splicing ear 21,21 has bus end 21a, 21a respectively, is used for being formed with the bus 33,33 of these bus structures 30 being electrically connected, and has terminal you 21b, 21b, is used for the wire (non-icon) linked in this terminal board 10.Splicing ear 21,21 can be planted in the interior set groove 22,22 of this insulating body 23, utilizes the elasticity of splicing ear 21,21 itself, is fixed in this groove 22,22.In other embodiments of the present invention, the plurality of splicing ear 21,21 is produced in this insulating body 23 with molding mode, to make both combinations more tight.The different practice respectively has its pros and cons, not any technical restriction.
The material normally conducting metal of this splicing ear 21,21, such as copper.But other metal, alloy or nonmetallic electric conducting material, also applicable in the present invention.This insulating body 23 normally non electrically conductive material is made.Such as plastics, rubber, resin, timber, paper or other composite material etc.This insulating body 23 also can arrange necessary fixing or supporting component, link closely to be formed with this terminal board 10 or its circuit board 11.Such as with multiple projection (not shown), embed the modes such as the groove (not shown) be arranged on this circuit board 11.Both fix by modes such as utilizing rivet, screw, weld, paste, also belong to feasible.
Insulating body 23 provides multiple groove 22,22, and this bus 33,33 (containing non-conductive strip) can be embedded in this groove 22,22.In some examples of the present invention, the cell wall of the plurality of splicing ear 21,21 and the plurality of groove 22,22 can clamp this bus 33,33 (containing non-conductive strip) jointly.In other example of the present invention, bus end 21a, 21a of the plurality of splicing ear 21,21 can clamp this bus 33,33 (containing non-conductive strip).When applying, this terminal board 10 first can be combined with this connector 20, form the terminal board with connector.Afterwards, the bus 33,33 of bus structures 30 is embedded in the groove 22,22 of connector 20, make the cell wall of splicing ear 21,21 or splicing ear 21,21 and groove 22,22 tightly clamp this bus 33,33, namely complete the assembling of this terminal board and data transmission bus structure.
The terminal you 21b direction showing this splicing ear 21 in Fig. 4 A is formed orthogonal with this bus end 21a.But in other applications, both directions can form 180 degree.Both angles can adjust as required, are not limited to them.The profile design of this kind of splicing ear and manufacture method, because belonging to known technology, do not need additionally to repeat at this.
Under above-mentioned design, bus structures 30 can be fixed on this terminal board trapped orbit 31 simply, and multiple terminal board 10 with this connector 20 is installed side by side in these bus structures 30, the plurality of terminal board 10 can use the bus 33,33 in these bus structures 30, as the bus shared, very and shared power line may be comprised.The application of terminal board is made to have more efficiency.
Compared to the prior art, terminal board bus structures of the present invention can provide the support of multiple terminal board, and the connector of each terminal board and bus-structured electric connection more certain, do not need again to use extra shell fragment.Be enough to the structure of reduced data transfer bus, save material and cost of manufacture, and promote service efficiency.
In addition, this terminal board data transmission bus structure can embed on existing terminal board fixed rack, can utilize existing equipment and can not increase system space.Use bus/non-conductive strip and groove structure, more shape is free can to make bus-structured design, does not need to be limited to any ad hoc structure.
It is more than the explanation to the preferred embodiment of the present invention.Those skilled in the art are not difficult from above explanation, understand content of the present invention and spirit, and according to disclosed technology, make various amplification and change.But be no matter the system of embodiment, framework or method, and its derivative and change, all belong to scope of the present invention.
Claims (13)
1. a terminal board data transmission bus structure, comprising:
One body, in order to be embedded into one for fixing in the terminal board trapped orbit of multiple terminal board side by side, this body is formed multiple groove extended to described multiple terminal board orientation; And
At least 2 buss, it is formed as embedding in groove on the body, forms guide rail.
2. terminal board data transmission bus structure as claimed in claim 1, also comprises setting connecting piece on the body, is fixed in described terminal board trapped orbit in order to be fixed by described body or to slide.
3. terminal board data transmission bus structure as claimed in claim 2, wherein, described connecting piece is fastener.
4. terminal board data transmission bus structure as claimed in claim 2, wherein, described connecting piece and described body by integral forming.
5. terminal board data transmission bus structure as claimed in claim 1 or 2, wherein, described terminal board data transmission bus structure also comprises at least 1 non-conductive strip, and this non-conductive strip is formed as embedding in groove on the body, jointly forms guide rail with described at least 2 buss.
6. terminal board data transmission bus structure as claimed in claim 1 or 2, also comprise a connector, this connector has:
Multiple splicing ear, the first end of each splicing ear can described bus in electrical contact; And
Insulating body, coated described multiple splicing ear, and multiple groove is provided, described bus is embedded in described groove.
7. terminal board data transmission bus structure as claimed in claim 6, wherein, the cell wall of described multiple splicing ear and described multiple groove clamps described bus jointly.
8. terminal board data transmission bus structure as claimed in claim 6, wherein, described multiple splicing ear clamps described bus.
9. terminal board data transmission bus structure as claimed in claim 6, wherein, described splicing ear also has the second end, and this second extreme direction is formed orthogonal with this one end.
10. terminal board data transmission bus structure as claimed in claim 5, also comprise a connector, this connector has:
Multiple splicing ear, the first end of each in the plurality of splicing ear can described bus in electrical contact and/or described non-conductive strip; And
Insulating body, the coated described multiple splicing ear of this insulating body, and multiple groove is provided, described bus and/or described non-conductive strip are embedded in described groove.
11. terminal board data transmission bus structures as claimed in claim 10, wherein, the cell wall of described multiple splicing ear and described multiple groove clamps described bus jointly.
12. terminal board data transmission bus structures as claimed in claim 10, wherein, described multiple splicing ear clamps described bus.
13. terminal board data transmission bus structures as claimed in claim 10, wherein, described splicing ear also has the second end, and this second extreme direction is formed orthogonal with this one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030593.7A CN103247875B (en) | 2012-02-10 | 2012-02-10 | Terminal block data transmission bus structure and terminal block using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030593.7A CN103247875B (en) | 2012-02-10 | 2012-02-10 | Terminal block data transmission bus structure and terminal block using same |
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| CN103247875A CN103247875A (en) | 2013-08-14 |
| CN103247875B true CN103247875B (en) | 2015-03-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106469876B (en) * | 2015-08-17 | 2018-11-23 | 町洋企业股份有限公司 | Connector modules |
| TWI711225B (en) * | 2019-07-01 | 2020-11-21 | 唐虞企業股份有限公司 | Connector assembly |
| CN111799577A (en) * | 2020-07-30 | 2020-10-20 | 济南泰景电力技术有限公司 | Industrial guide rail terminal bus structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101399413A (en) * | 2007-09-28 | 2009-04-01 | 百容电子股份有限公司 | Micro plug for USB |
| CN201327933Y (en) * | 2008-10-27 | 2009-10-14 | 太康精密股份有限公司 | Connector and circuit board suitable for transmission interface |
| CN101635422A (en) * | 2008-07-22 | 2010-01-27 | 吴上财 | Terminal stand structure |
| CN201435459Y (en) * | 2009-06-09 | 2010-03-31 | 乐利精密工业(深圳)有限公司 | Molding terminal block |
| CN102185190A (en) * | 2010-01-15 | 2011-09-14 | 欧姆龙株式会社 | Terminal block |
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2012
- 2012-02-10 CN CN201210030593.7A patent/CN103247875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399413A (en) * | 2007-09-28 | 2009-04-01 | 百容电子股份有限公司 | Micro plug for USB |
| CN101635422A (en) * | 2008-07-22 | 2010-01-27 | 吴上财 | Terminal stand structure |
| CN201327933Y (en) * | 2008-10-27 | 2009-10-14 | 太康精密股份有限公司 | Connector and circuit board suitable for transmission interface |
| CN201435459Y (en) * | 2009-06-09 | 2010-03-31 | 乐利精密工业(深圳)有限公司 | Molding terminal block |
| CN102185190A (en) * | 2010-01-15 | 2011-09-14 | 欧姆龙株式会社 | Terminal block |
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