CN103259121A - Serial communication bus junction device - Google Patents
Serial communication bus junction device Download PDFInfo
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- CN103259121A CN103259121A CN2012100398310A CN201210039831A CN103259121A CN 103259121 A CN103259121 A CN 103259121A CN 2012100398310 A CN2012100398310 A CN 2012100398310A CN 201210039831 A CN201210039831 A CN 201210039831A CN 103259121 A CN103259121 A CN 103259121A
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Abstract
The invention provides a serial communication bus junction device which comprises a shell body, an incoming line conducting plate, an outgoing line conducting plate and a mainboard conducting plate, wherein the shell body is provided with an incoming line wiring port, an outgoing line wiring port and a mainboard line wiring port; the incoming line conducting plate is located in the shell body, and a wiring terminal inserted from the incoming line wiring port is communicated with the incoming line conducting plate; the outgoing line conducting plate is located in the shell body, and a wiring terminal inserted from the outgoing line wiring port is communicated with the outgoing line conducting plate; the mainboard conducting plate is located in the shell body, and a wiring terminal inserted from the mainboard line wiring port is communicated with the mainboard conducting plate; the incoming line wiring port is inserted into the wiring terminal, and the outgoing conducting plate and the mainboard conducting plate are changed to a conducting state from a disconnecting state; the outgoing line wiring port is inserted into the wiring terminal, and the incoming conducting plate and the outgoing conducting line are changed to a conducting state from a disconnecting state. The serial communication bus junction device can ensure the fact that multiple on-line serial communication can fail under the condition that a terminal resistor is not connected, and therefore engineering installation staff are prompted to connect the terminal resistor.
Description
Technical field
The present invention relates to the communications field, more specifically, relate to a kind of serial communication bus termination.
Background technology
In the prior art, what use in the modular air-conditioning system is serial communication, this communication resistance that must be in the end accesses terminal on air conditioner.As shown in Figure 1, form by 485 buses between each air conditioner is carried out communication, the inlet wire 2 of first air conditioner is connected to the inlet wire connection jaws of termination 1 in the modular air-conditioning system, be connected outlet 3 on the outlet connection jaws and be connected to the inlet wire connection jaws of next air conditioner, the rest may be inferred, form the serial communication between each air conditioner, the mainboard outlet connection jaws of the termination 1 of each air conditioner has all connected mainboard outlet 4, resistance 5 wherein needs to access terminal on last loom, otherwise can cause the whole communication of modular air-conditioning system off and on, bad during fashion.But, in the installation process, many times forget installing terminal resistance 5 at the scene, when perhaps terminal resistance 5 damages, make the commissioning staff be difficult to find the problem place.
In order farthest to avoid the generation of this problem, need a special termination at multi-joint unit communication of design, as long as make inlet wire, outlet and connect between the line three of mainboard and have any one lead not insert, then can cause the whole communication can not be smooth and easy, thereby be convenient to debugging.
Summary of the invention
The object of the invention is to provide a kind of and can guarantees under the situation that does not connect terminal resistance, makes the serial communication fault of multi-joint machine, thereby prompting project installation personnel insert or check the serial communication bus termination of terminal resistance.
The invention provides a kind of serial communication bus termination, comprising: housing, described housing have inlet wire connection jaws, outlet connection jaws, main plate line connection jaws; The inlet wire conducting strip is positioned at described enclosure interior, from binding post and the conducting of described inlet wire conducting strip of described inlet wire connection jaws insertion; The outlet conducting strip is positioned at described enclosure interior, from binding post and the conducting of described outlet conducting strip of described outlet connection jaws insertion; The mainboard conducting strip is positioned at described enclosure interior, from binding post and the conducting of described mainboard conducting strip of described main plate line connection jaws insertion; Wherein, described inlet wire connection jaws inserts binding post, and then described outlet conducting strip and described mainboard conducting strip become conducting state by off-state; Described outlet connection jaws inserts binding post, and then described inlet wire conducting strip and described outlet conducting strip become conducting state by off-state.
Further, the described outlet conducting strip of part and the described mainboard conducting strip of part near described inlet wire connection jaws are oppositely arranged, and the part that is oppositely arranged on described outlet conducting strip and described mainboard conducting strip correspondence respectively arranges first contact and second contact, and described inlet wire connection jaws inserts binding post, and then described first contact and second contact become conducting state by off-state.
Further, described first contact and described second contact gap under off-state is 0.5mm.
Further, described serial communication bus termination also comprises: insulated spring is arranged between the described outlet conducting strip and described mainboard conducting strip that is oppositely arranged.
Further, the binding post that inserts described outlet connection jaws respectively with described inlet wire conducting strip and the conducting of described outlet conducting strip.
Further, described serial communication bus termination also comprises: first cord grip, be positioned at described enclosure interior, and be used for and will be pressed to described inlet wire conducting strip from the binding post that described inlet wire connection jaws inserts.
Further, described first cord grip comprises: the first line ball main body, first framework that comprises the rectangle with first front end opening and first open rearward end portion, described first front end opening is relative with described inlet wire connection jaws, described inlet wire conducting strip begins to extend back and passes the described first open rearward end portion from described first front end opening, the below of the described first line ball main body sets gradually the described outlet conducting strip of part and the described mainboard conducting strip of part, described first framework comprises first roof and first diapire, on described first roof first screwed hole is set, the internal face setting of described first diapire is towards the protuberance of described first screwed hole; First line pressing bolt, the head of screw floating ground of described first line pressing bolt is connected in the first head of screw groove of described enclosure interior, screw rod is connected with described first screwed hole with matching, the described first line ball main body along with the rotation of described first line pressing bolt along axis direction moving linearly in described housing of described second line pressing bolt.
Further, the gap of the described binding post insertion of the confession of described first line ball main body reservation is 1.5mm.
Further, described serial communication bus termination also comprises: second cord grip, be positioned at described enclosure interior, and be used for and will be pressed to described outlet conducting strip from the binding post that described outlet connection jaws inserts.
Further, described second cord grip comprises: the second line ball main body, comprise second framework with second front end opening and second open rearward end portion, the described second open rearward end portion is relative with described outlet connection jaws, the inside that described inlet wire conducting strip begins to extend through second front end opening and stretches into the described second line ball main body from described inlet wire connection jaws top, described outlet conducting strip begins to extand rearward to the described second open rearward end portion from described inlet wire connection jaws below, described second framework comprises second roof, the bottom support that is parallel to described second roof, the sidepiece connector that connects described second roof and bottom support arranges second screwed hole on described second roof; Second line pressing bolt, the head of screw floating ground of described second line pressing bolt is connected in the second head of screw groove of described enclosure interior, screw rod is connected with described second screwed hole with matching, the described second line ball main body along with the rotation of described second line pressing bolt along axis direction moving linearly in described housing of described second line pressing bolt.
Further, described serial communication bus termination also comprises: the 3rd cord grip, be positioned at described enclosure interior, and be used for and will be pressed to described outlet conducting strip from the binding post that described main plate line connection jaws inserts.
Further, described the 3rd cord grip comprises: the 3rd line ball main body, the 3rd framework that comprises the rectangle with the 3rd front end opening and the 3rd open rearward end portion, described the 3rd open rearward end portion is relative with described main plate line connection jaws, described mainboard conducting strip begins to extend back by described the 3rd front opening until described the 3rd open rearward end portion from the below of described inlet wire connection jaws, described the 3rd framework has the 3rd roof, on described the 3rd roof the 3rd screwed hole is set; The 3rd line pressing bolt, the head of screw floating ground of described the 3rd line pressing bolt is connected in the 3rd head of screw groove of described enclosure interior, screw rod is connected with described the 3rd screwed hole with matching, described the 3rd line ball main body along with the rotation of described the 3rd line pressing bolt along axis direction moving linearly in described housing of described the 3rd line pressing bolt.
According to serial communication bus termination of the present invention, can guarantee under the situation that does not connect terminal resistance, make the serial communication fault of multi-joint machine, the resistance thereby prompting project installation personnel access terminal.By this termination, not only can realize multi-joint unit serial communication, simultaneously, also can remind the commissioning staff to note the installation of terminal resistance, if terminal resistance is not installed, then the communication between each unit module can't be finished in the whole multi-joint unit.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the serial communication bus wiring schematic diagram of modular air-conditioning system;
Fig. 2 is the decomposition texture schematic diagram of the serial communication bus termination of modular air-conditioning system of the present invention;
Fig. 3 is the sectional structure schematic diagram of the serial communication bus termination of modular air-conditioning system of the present invention;
Fig. 4 is the first line ball agent structure schematic diagram of the serial communication bus termination of modular air-conditioning system of the present invention;
Fig. 5 is the second line ball agent structure schematic diagram of the serial communication bus termination of modular air-conditioning system of the present invention;
Fig. 6 is the 3rd line ball agent structure schematic diagram of the serial communication bus termination of modular air-conditioning system of the present invention; And
Fig. 7 is the first cord grip substrate hold-down function implementation schematic diagram in the serial communication bus termination of modular air-conditioning system of the present invention.
Embodiment
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Serial communication bus termination of the present invention is not limited to use in the modular air-conditioning system, and it can be applicable to the situation of any multi-joint unit serial communication.
As shown in Figure 2 to Figure 3, the serial communication bus termination of present embodiment mainly comprises the housing of being made up of the first half shells 11 and the second half shells 12 and inlet wire copper sheet 16, outlet copper sheet 17, the mainboard copper sheet 18 that is positioned at housing.Housing has inlet wire connection jaws 111, outlet connection jaws 112, main plate line connection jaws 113.Binding post and 16 conductings of inlet wire copper sheet from 111 insertions of inlet wire connection jaws; Binding post and 17 conductings of outlet copper sheet from 112 insertions of outlet connection jaws; Binding post and 18 conductings of mainboard copper sheet from 113 insertions of main plate line connection jaws.And wherein, inlet wire connection jaws 111 inserts binding posts, and then outlet copper sheet 17 and mainboard copper sheet 18 become conducting state by off-state; Outlet connection jaws 112 inserts binding posts, and then outlet copper sheet 17 and outlet copper sheet 17 become conducting state by off-state.
When the binding post of inlet wire inserts from inlet wire connection jaws 111, not only can be with inlet wire and 16 conductings of inlet wire copper sheet, the while can be with outlet copper sheet 17 and 18 conductings of mainboard copper sheet; When outlet connection jaws 112 has the binding post of outlet to insert, not only can be with outlet and 17 conductings of outlet copper sheet, the while can be with inlet wire copper sheet 16 and 17 conductings of outlet copper sheet.Therefore, when inlet wire connection jaws 111 and outlet connection jaws 112 all insert binding post, mutual conduction between inlet wire copper sheet 16, outlet copper sheet 17, mainboard copper sheet 18 threes, namely the unit module mainboard of modular multi-connection group and the turnover line between with whole conductings; Otherwise, will can conducting between the three.This set makes that under the situation that does not connect terminal resistance, the serial communication of multi-joint unit can produce fault, the prompting project installation personnel resistance that accesses terminal, thus avoided when multi-joint unit operation communication off and on, in-and-out phenomenon takes place.
As shown in Figure 3, part outlet copper sheet 17 and mainboard copper sheet 18 near inlet wire connection jaws 111 in the present embodiment are oppositely arranged, and the part that is oppositely arranged on outlet copper sheet 17 and the mainboard copper sheet 18 correspondence respectively is provided with first contact 23 and second contact 24, inlet wire connection jaws 111 does not insert binding post and then first contact 23 and second contact 24 is in off-state, and then first contact 23 and second contact 24 are in conducting state to insert binding post.
In the present embodiment, be provided with first cord grip in enclosure interior, both can have realized compressing between the binding post of inlet wire and the inlet wire copper sheet by this first cord grip, can realize contacting of first contact 23 and second contact 24 again.First cord grip below in conjunction with Fig. 2 to Fig. 4 and the present embodiment of Fig. 7 is elaborated.
As shown in Figure 2 to Figure 3, first cord grip comprises the first line ball main body 13 and first line pressing bolt 20 particularly.The first line ball main body 13 comprises first front end opening of front end and the first open rearward end portion of rear end.In this application, direction " preceding " refers to the direction at inlet wire connection jaws place on the housing, and " back " is relative with " preceding ".First front end opening is relative with inlet wire connection jaws 111, inlet wire copper sheet 16 is from the top of inlet wire connection jaws 111, namely first front end opening begins to extend back and passes the first open rearward end portion, the below of the first line ball main body 13 also is that the below of inlet wire connection jaws 111 sets gradually the part outlet copper sheet 17 that comprises first contact 23 and the part mainboard copper sheet 18 that comprises second contact 24.
Fig. 4 shows a concrete example of the first line ball main body, this first line ball main body 13 comprises first framework 131 of first framework 131 of the rectangle of front-end and back-end opening, have first roof and first diapire, be provided with the internal face setting of first screwed hole, 133, the first diapires on first roof towards the protuberance 132 of first screwed hole 133.The head of screw floating ground of first line pressing bolt 20 is connected in the first head of screw groove 114 of enclosure interior, screw rod is connected with first screwed hole 133 with matching, the first line ball main body 13 along with the rotation of first line pressing bolt 20 along axis direction moving linearly in housing of first line pressing bolt 20.To the operation of first line pressing bolt and second, third line pressing bolt described later, the relevant position is provided with the screwdriver import of stretching into for Luo silk cutter 115 on the housing for convenience.
When inlet wire connection jaws 111 did not insert binding post, there was certain clearance first contact 23 of outlet copper sheet 17 belows with second contact 24 of mainboard copper sheet 18 tops, and the gap in this gap is preferably about 0.5mm.At this moment, first contact 23 and second contact 24 are in off-state.
When inlet wire connection jaws 111 inserts binding post, because the existence of protuberance 132 needs the gap between corresponding adjustment inlet wire copper sheet 16 and the protuberance 132 when inserting the gap deficiency.Regulative mode as shown in Figure 7, rotate first line pressing bolt 20, owing to be subjected to the first head of screw groove 114 and first line ball main body 13 restriction of shell structure on every side, first line pressing bolt, 20 no rectilinear motions and the first line ball main body 13 is moved without spin, thereby can drive the first line ball main body 13 moves downward, gap between inlet wire copper sheet 16 and the protuberance 132 becomes greatly gradually at this moment, inserts in this gap until binding post.When compressing binding post, only need rotate first line pressing bolt 20 a little and the first line ball main body 13 be moved up by the acting in conjunction of first line pressing bolt 20 with protuberance 132 binding post to be compressed.Simultaneously, because the first line ball main body 13 moves downward the part that makes outlet copper sheet 17 be positioned at the first line ball main body 13 and moves downward, and when inlet wire connection jaws 111 inserts the binding post of inlet wire, protuberance 132 is squeezed the diapire of the first line ball main body 13 is slightly descended, the appropriate section that has promoted outlet copper sheet 17 moves downward, first contact 23 of outlet copper sheet 17 belows is contacted with second contact 24 of mainboard copper sheet 18 tops, thus outlet copper sheet 17 and 18 conductings of mainboard copper sheet.
The serial communication bus termination of present embodiment also comprises insulated spring 19, and this insulated spring 19 is arranged between the part outlet copper sheet 17 and mainboard copper sheet 18 that is oppositely arranged.Insulated spring 19 can play the effect of insulation on the one hand, prevents outlet copper sheet 17 and mainboard copper sheet 18 by the spring conducting, can prevent the conducting under the situation that does not have binding post insertion inlet wire connection jaws 111 of outlet copper sheet 17 and mainboard copper sheet 18 on the other hand.
As shown in Figure 3, the second line ball main body 14 has second front end opening and the second open rearward end portion, the second open rearward end portion is relative with outlet connection jaws 112, inlet wire copper sheet 16 passes the inside that the first open rearward end portion continues to extend through second front end opening and stretches into the second line ball main body 14, and outlet copper sheet 17 extands rearward to the second open rearward end portion since the below of the first line ball main body 13.
Fig. 5 shows a concrete example of the second line ball main body.The second line ball main body 14 comprises second framework of front-end and back-end opening, second framework comprises second roof 141, is parallel to the bottom support 143 of second roof 141, connects on sidepiece connector 142, the second roofs 141 of second roof 141 and bottom support 143 second screwed hole 144 is set.The head of screw floating ground of second line pressing bolt 21 is connected in the second head of screw groove 116 of enclosure interior, screw rod is connected with second screwed hole 144 with matching, the second line ball main body 14 along with the rotation of second line pressing bolt 21 along axis direction moving linearly in housing of second line pressing bolt 21.
As shown in Figure 2, outlet copper sheet 17 bends in order to make progress earlier in the 112 1 side settings of outlet connection jaws in the present embodiment, again backward the bending shape, be abutted against mutually with each appropriate section of the second line ball main body 14, and make inlet wire copper sheet 16 and outlet copper sheet 17 and the contact portion of corresponding binding post all be positioned at the top of binding post.The benefit of She Zhiing is like this, can reduce the distortion of outlet copper sheet 17 in housing, and the end and the binding post that simultaneously inlet wire copper sheet 16 and outlet copper sheet 17 are positioned at the outlet connection jaws when screwing second line pressing bolt 21 are pressed together.Certainly, as long as can guarantee outlet copper sheet 17 contacts with the tight of binding post, the shape of outlet copper sheet 17 can be set to other shape as required, for example also an end of the outlet connection jaws of outlet copper sheet 17 can be arranged on the below of binding post, and utilize the elasticity of copper sheet to keep outlet copper sheet 17 to contact with the good of binding post.
The mode that compresses of second cord grip and aforesaid first cord grip are similar, be by rotating second line pressing bolt 21 the second line ball main body 14 to be moved upward, inlet wire copper sheet 16, outlet copper sheet 17 and corresponding binding post are pressed between second line pressing bolt 21 and the bottom support 143.
Shown in Fig. 2 to 3, for binding post and mainboard copper cash 18 with main plate line compress, the serial communication bus termination has also comprised the 3rd cord grip.More specifically, the 3rd cord grip comprises the 3rd line pressing bolt 22 of the 3rd line ball main body 15 and manipulation the 3rd line ball main body 15.The 3rd line ball main body 15 comprises the 3rd front end opening and the 3rd open rearward end portion, the 3rd open rearward end portion is relative with main plate line connection jaws 113, and mainboard copper sheet 18 belows since the first line ball main body 13 extend back by the 3rd front opening until the 3rd open rearward end portion.
As shown in Figure 6, the 3rd line ball main body 15 comprises that the 3rd framework 151, the three frameworks 151 of the rectangle of front-end and back-end opening have the 3rd roof, are provided with the 3rd screwed hole 152 on the 3rd roof; The head of screw floating ground of the 3rd line pressing bolt 22 is connected in the 3rd head of screw groove 117 of enclosure interior, screw rod is connected with the 3rd screwed hole 152 with matching, the 3rd line ball main body 15 along with the rotation of the 3rd line pressing bolt 22 along axis direction moving linearly in housing of the 3rd line pressing bolt 22.The mode that compresses of the 3rd cord grip and aforesaid first cord grip are similar, no longer repeat.
Be adapted to the thickness of binding post, the gap of inserting for binding post that the first line ball main body 13, the second line ball main body 14 and the 3rd line ball main body 15 are reserved may be selected to be about 1.5mm.
Serial communication bus termination for above embodiment, use it to be connected to wiring construction shown in Figure 1, the mainboard of each unit module needs two identical terminations, owing on each three connection jaws are arranged, two are used side by side and can reach set purpose.
Can when the serial communication bus termination dispatches from the factory, just connect with connection between the mainboard with termination and unit module, only leave two connection jaws of project installation personnel for, when connecting, just can tap into outlet arbitrarily like this.And need in the end to connect terminal resistance on a unit module, otherwise whole multi-joint unit can not realize that communication breaks down, thereby play the effect of reminding and helping unit communication debugging.
The serial communication bus termination of present embodiment can be used in each unit module in the multi-joint unit, for example be used in each air conditioner of modular air-conditioning system, realize the communication between unit module and last unit module mainboard and the back unit module, can guarantee normally carrying out of communication, also for the communication device debugging provides foundation, avoided not connecing the situation of terminal resistance to a certain extent.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect: under the situation that does not connect the damage of terminal resistance or terminal resistance, make the serial communication fault of multi-joint machine, thereby prompting project installation personnel insert or check terminal resistance.Not only can realize multi-joint unit serial communication, can remind simultaneously the commissioning staff to note installation and the inspection of terminal resistance, and if terminal resistance is not installed, the communication in the whole multi-joint unit between each unit module can't be finished.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a serial communication bus termination is characterized in that, comprising:
Housing, described housing have inlet wire connection jaws (111), outlet connection jaws (112), main plate line connection jaws (113);
Inlet wire conducting strip (16) is positioned at described enclosure interior, from binding post and described inlet wire conducting strip (16) conducting of described inlet wire connection jaws (111) insertion;
Outlet conducting strip (17) is positioned at described enclosure interior, from binding post and described outlet conducting strip (17) conducting of described outlet connection jaws (112) insertion;
Mainboard conducting strip (18) is positioned at described enclosure interior, from binding post and described mainboard conducting strip (18) conducting of described main plate line connection jaws (113) insertion; Wherein,
Described inlet wire connection jaws (111) inserts binding post, and then described outlet conducting strip (17) and described mainboard conducting strip (18) become conducting state by off-state;
Described outlet connection jaws (112) inserts binding post, and then described inlet wire conducting strip (16) becomes conducting state with described outlet conducting strip (17) by off-state.
2. serial communication bus termination according to claim 1, it is characterized in that, the described outlet conducting strip of part (17) and the described mainboard conducting strip of part (18) near described inlet wire connection jaws (111) are oppositely arranged, and the part that is oppositely arranged on described outlet conducting strip (17) and the described mainboard conducting strip (18) correspondence respectively arranges first contact (23) and second contact (24), and described inlet wire connection jaws (111) inserts binding post, and then described first contact (23) and second contact (24) become conducting state by off-state.
3. serial communication bus termination according to claim 2 is characterized in that, described first contact (23) is 0.5mm with the gap of described second contact (24) under off-state.
4. serial communication bus termination according to claim 2, it is characterized in that, described serial communication bus termination also comprises: insulated spring (19) is arranged between the described outlet conducting strip (17) and described mainboard conducting strip (18) that is oppositely arranged.
5. serial communication bus termination according to claim 1 is characterized in that, the binding post that inserts described outlet connection jaws (112) respectively with described inlet wire conducting strip (16) and described outlet conducting strip (17) conducting.
6. according to each described serial communication bus termination in the claim 1 to 5, it is characterized in that described serial communication bus termination also comprises:
First cord grip is positioned at described enclosure interior, is used for being pressed to described inlet wire conducting strip (16) from the binding post that described inlet wire connection jaws (111) inserts.
7. serial communication bus termination according to claim 6 is characterized in that, described first cord grip comprises:
The first line ball main body (13), first framework (131) that comprises the rectangle with first front end opening and first open rearward end portion, described first front end opening is relative with described inlet wire connection jaws (111), described inlet wire conducting strip (16) begins to extend back and passes the described first open rearward end portion from described first front end opening, the below of the described first line ball main body (13) sets gradually the described outlet conducting strip of part (17) and the described mainboard conducting strip of part (18), described first framework (131) comprises first roof and first diapire, first screwed hole (133) is set on described first roof, and the internal face setting of described first diapire is towards the protuberance (132) of described first screwed hole (133);
First line pressing bolt (20), the head of screw floating ground of described first line pressing bolt (20) is connected in the first head of screw groove (114) of described enclosure interior, screw rod is connected with described first screwed hole (133) with matching, the described first line ball main body (13) along with the rotation of described first line pressing bolt (20) along axis direction moving linearly in described housing of described first line pressing bolt (20).
8. serial communication bus termination according to claim 7 is characterized in that, the gap that the described binding post of the confession that the described first line ball main body (13) is reserved inserts is 1.5mm.
9. according to each described serial communication bus termination in the claim 1 to 5, it is characterized in that described serial communication bus termination also comprises:
Second cord grip is positioned at described enclosure interior, is used for being pressed to described outlet conducting strip (17) from the binding post that described outlet connection jaws (112) inserts.
10. serial communication bus termination according to claim 9 is characterized in that, described second cord grip comprises:
The second line ball main body (14), comprise second framework with second front end opening and second open rearward end portion, the described second open rearward end portion is relative with described outlet connection jaws (112), described inlet wire conducting strip (16) begins the inside that extends through second front end opening and stretch into the described second line ball main body (14) from described inlet wire connection jaws (111) top, described outlet conducting strip (17) begins to extand rearward to the described second open rearward end portion from described inlet wire connection jaws (111) below, described second framework comprises second roof (141), the bottom support (143) that is parallel to described second roof (141), connect the sidepiece connector (142) of described second roof (141) and bottom support (143), second screwed hole (144) is set on described second roof (141);
Second line pressing bolt (21), the head of screw floating ground of described second line pressing bolt (21) is connected in the second head of screw groove (116) of described enclosure interior, screw rod is connected with described second screwed hole (144) with matching, the described second line ball main body (14) along with the rotation of described second line pressing bolt (21) along axis direction moving linearly in described housing of described second line pressing bolt (21).
11. according to each described serial communication bus termination in the claim 1 to 5, it is characterized in that described serial communication bus termination also comprises:
The 3rd cord grip is positioned at described enclosure interior, is used for being pressed to described outlet conducting strip (18) from the binding post that described main plate line connection jaws (113) inserts.
12. serial communication bus termination according to claim 11 is characterized in that, described the 3rd cord grip comprises:
The 3rd line ball main body (15), the 3rd framework (151) that comprises the rectangle with the 3rd front end opening and the 3rd open rearward end portion, described the 3rd open rearward end portion is relative with described main plate line connection jaws (113), described mainboard conducting strip (18) begins to extend back by described the 3rd front opening until described the 3rd open rearward end portion from the below of described inlet wire connection jaws (111), described the 3rd framework (151) has the 3rd roof, and the 3rd screwed hole (152) is set on described the 3rd roof;
The 3rd line pressing bolt (22), the head of screw floating ground of described the 3rd line pressing bolt (22) is connected in the 3rd head of screw groove (117) of described enclosure interior, screw rod is connected with described the 3rd screwed hole (152) with matching, described the 3rd line ball main body (15) along with the rotation of described the 3rd line pressing bolt (22) along axis direction moving linearly in described housing of described the 3rd line pressing bolt (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039831.0A CN103259121B (en) | 2012-02-21 | 2012-02-21 | Serial communication bus junction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039831.0A CN103259121B (en) | 2012-02-21 | 2012-02-21 | Serial communication bus junction device |
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| CN103259121A true CN103259121A (en) | 2013-08-21 |
| CN103259121B CN103259121B (en) | 2015-04-22 |
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| CN201210039831.0A Active CN103259121B (en) | 2012-02-21 | 2012-02-21 | Serial communication bus junction device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444925A (en) * | 2019-07-05 | 2019-11-12 | 宁波公牛电器有限公司 | A kind of fast-assembling connection terminal module and switch |
| CN110993413A (en) * | 2019-12-26 | 2020-04-10 | 江门市保值久机电有限公司 | Mechanical two-stage switch |
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| CN2640083Y (en) * | 2003-07-22 | 2004-09-08 | 宋吉科 | Three-way explosion-proof junction box |
| CN2749152Y (en) * | 2004-11-26 | 2005-12-28 | 孙和泉 | Three-way electrothermal belt junction box |
| US20090059484A1 (en) * | 2007-09-04 | 2009-03-05 | Brent David Allwood | Broadband over power line loom |
| WO2009050592A2 (en) * | 2007-09-04 | 2009-04-23 | Adc Gmbh | Coupling housing over broadband power line communication |
| CN201392894Y (en) * | 2009-04-24 | 2010-01-27 | 上海向开电气有限公司 | Parallelly-connected multifunctional wiring terminal |
| CN202444096U (en) * | 2012-02-21 | 2012-09-19 | 珠海格力电器股份有限公司 | Serial communication bus junction device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444925A (en) * | 2019-07-05 | 2019-11-12 | 宁波公牛电器有限公司 | A kind of fast-assembling connection terminal module and switch |
| CN110444925B (en) * | 2019-07-05 | 2021-04-27 | 宁波公牛电器有限公司 | Fast-assembling wiring terminal module and switch |
| CN110993413A (en) * | 2019-12-26 | 2020-04-10 | 江门市保值久机电有限公司 | Mechanical two-stage switch |
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| CN103259121B (en) | 2015-04-22 |
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