CN210245745U - Current terminal structure with grounding function - Google Patents
Current terminal structure with grounding function Download PDFInfo
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- CN210245745U CN210245745U CN201921101775.2U CN201921101775U CN210245745U CN 210245745 U CN210245745 U CN 210245745U CN 201921101775 U CN201921101775 U CN 201921101775U CN 210245745 U CN210245745 U CN 210245745U
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Abstract
The utility model discloses a current terminal structure with grounding function in the technical field of electric power, which comprises an insulating bottom plate and a conductive assembly arranged on the insulating bottom plate, wherein the conductive assembly comprises a left current terminal and a right current terminal, the insulating bottom plate is provided with an upper supporting part and a lower supporting part below the upper supporting part, a grounding terminal is arranged between the upper supporting part and the lower supporting part, the left current terminal and the right current terminal are respectively provided with a testing grounding hole, the left current terminal and the right current terminal are respectively provided with an upper grounding threaded hole, the grounding terminal is provided with two lower grounding threaded holes, one grounding screw is used for sequentially passing through one testing grounding hole, the upper grounding threaded hole and the lower grounding threaded hole are respectively connected with the left current terminal and the grounding terminal, and the other grounding screw is used for sequentially passing through the other testing grounding hole, the upper grounding threaded hole and the lower grounding threaded hole are respectively connected with the right current terminal and the grounding terminal; this structure can realize quick ground connection.
Description
Technical Field
The utility model belongs to the technical field of electric power, in particular to take current terminal structure of ground connection function.
Background
With the popularization of the electric connector technology, in the traditional electric connector current terminal, the traditional electric connector current terminal comprises an insulating bottom plate and a conductive component arranged on the insulating bottom plate, the conductive component comprises a left current terminal and a right current terminal, an input wiring screw hole is formed in the left current terminal, an output wiring screw hole is formed in the right current terminal, the input wiring screw is detachably connected with the left current terminal through the input wiring screw hole, the output wiring screw is detachably connected with the right current terminal through the output wiring screw hole, wiring screw holes are respectively formed in the left current terminal and the right current terminal, the left current terminal and the right current terminal are connected together through a connecting sheet, a current loop is formed between the left current terminal and the right current terminal, when the left current terminal or the right current terminal needs to be grounded, a separate short wiring line is needed to be used for grounding the current loop, the connection is unsafe, and, Unreliable and inconvenient.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model discloses an overcome the weak point among the above-mentioned prior art, provide a take current terminal structure of ground connection function, solved among the prior art ground connection insecure unreliable inconvenient technical problem, quick ground connection, safe and reliable more are realized to this structure.
The purpose of the utility model is realized like this: the utility model provides a take current terminal structure of ground connection function, includes insulating bottom plate and installs the conductive component on insulating bottom plate, conductive component includes left current terminal and right current terminal, and it has input wiring screw to open on the left current terminal, and it has output wiring screw to open on the right current terminal, uses input wiring terminal screw to be connected with left current terminal detachably through input wiring screw, uses output wiring terminal screw to be connected its characterized in that through output wiring screw and right current terminal detachably: the utility model discloses an insulation base plate, including insulation bottom plate, upper supporting part and lower supporting part, lower supporting part is equipped with supporting part and lower supporting part on the insulation bottom plate, and left current terminal and right current terminal are at the upper supporting part upside, and ground terminal sets up between upper supporting part and lower supporting part, it has the test ground hole to open respectively on left side current terminal and the right current terminal, respectively opens on left side current terminal and the right current terminal has ground connection screw hole, and it has two ground connection screw holes down to open on the ground terminal, uses a ground screw to pass a test ground hole in proper order, goes up ground connection screw hole and ground connection screw hole down and is connected with left current terminal and ground terminal respectively, uses another ground screw to pass another test ground hole in proper order, goes up ground connection screw hole and ground connection screw hole.
In the utility model, when the current transformer is in operation, the grounding terminal is in a grounding state, and when the current terminal power supply side exits from a secondary load (the left current terminal is the power supply side, namely the input side), the left current terminal needs to be grounded, the grounding screw is firstly used for being inserted from the test grounding hole, and one grounding screw is used for screwing into the upper grounding threaded hole of the left current terminal and the lower grounding threaded hole of the grounding terminal in sequence; when the secondary load needs to be withdrawn from the load side of the current terminal (the right current terminal is the load side, namely the output side), a grounding screw is inserted into the test grounding hole of the right current terminal, and the grounding screw is screwed into the upper grounding threaded hole of the right current terminal and the lower grounding threaded hole of the grounding terminal in sequence; the utility model realizes rapid short circuit grounding of the current loop, which is more convenient and rapid; the method can be applied to the short circuit grounding work of the current loop.
In order to facilitate the switching on or off of the current between the left and right current terminals, the conductive assembly further comprises a ground terminal, the left current terminal is provided with a left limiting groove at one side opposite to the right current terminal, the right current terminal is provided with a right limiting groove at one side opposite to the left current terminal, a first fixing screw hole is formed in the left current terminal at the lower side of the left limiting groove, a second fixing screw hole is formed in the right current terminal at the lower side of the right limiting groove at intervals in the length direction, the distance between the first fixing screw hole and the second fixing screw hole close to the first fixing screw hole is d1, the center distance between the two fixing screw holes is d2, d1 is the same as d2, current connecting sheet terminals are placed on the left current terminal and the right current terminal, the current connecting sheet can slide along the left limiting groove and the right limiting groove, and two fixing holes with the center distance of d2 are formed in the current connecting sheet.
In order to realize the grounding of the wiring terminal, the conductive assembly further comprises a grounding terminal short splicing piece, the grounding terminal short splicing piece comprises an insulating base, a conductive piece is connected onto the insulating base, a grounding groove used for placing a grounding wire is formed in the conductive piece, a grounding short splicing hole is formed in the side portion of the grounding terminal, the conductive piece is connected with the grounding terminal through the grounding short splicing hole, a grounding screw hole is formed in the grounding terminal, and a grounding wire connecting screw is screwed into the grounding screw hole to tightly press the conductive piece and the grounding wire.
In order to conveniently screw the grounding connecting screw in the grounding screw hole, a connecting hole coaxial with the grounding screw hole is formed in the left current terminal, and the connecting hole is communicated with the grounding short-circuit hole; in this design, a screwdriver used to tighten the ground connection screw extends into the connection hole, causing the ground connection screw to tighten into the ground screw hole and press against the ground wire.
In order to facilitate the positioning of the left current terminal, the upper supporting part is provided with two upper positioning grooves I, one side of the left current terminal facing downwards is provided with two left positioning bulges extending downwards, and the left current terminal is respectively arranged in the two upper positioning grooves I through the two left positioning bulges.
In order to facilitate the positioning of the right current terminal, an upper positioning groove II is further formed in the upper supporting part, two right positioning protrusions extending downwards are arranged on one side, facing downwards, of the right current terminal, and the right current terminal is arranged in the two upper positioning grooves II through the two right positioning protrusions respectively.
In order to facilitate the positioning of the grounding terminal, at least two lower positioning bulges extending downwards are arranged on one downward side of the grounding terminal, lower positioning grooves corresponding to the lower positioning bulges are formed in the lower supporting part, and the lower positioning bulges can be arranged in the lower positioning grooves.
In order to conveniently take and place the current terminal connecting sheet, an insulating handle is arranged on one upward side of the current terminal connecting sheet.
Drawings
Fig. 1 is a structural diagram of the present invention.
Fig. 2 is an explosion structure diagram of the conductive assembly of the present invention.
Fig. 3 is a structural diagram of the middle insulation floor of the present invention.
Fig. 4 is a structural diagram of the ground terminal shorting tab of the present invention.
Fig. 5 is a partially enlarged view of a portion a in fig. 1.
Fig. 6 is a top view of the current terminal connecting piece of the present invention.
Fig. 7 is a top view of the middle left current terminal of the present invention.
Fig. 8 is a partial enlarged view of fig. 1 at B.
Fig. 9 is a partial enlarged view at C in fig. 1.
Fig. 10 is a front view of the current terminal connecting piece of the present invention.
Wherein, 1 is an insulated bottom plate, 101 is a lower support part, 102 is an upper support part, 103 is a first positioning groove, 104 is a lower positioning groove, 105 is a second positioning groove, 2 is a conductive component, 201 is an input wiring screw hole, 202 is an input wiring terminal screw, 203 is a left current terminal, 204 is a fixed screw hole, 205 is a current input connection screw, 206 is a current output connection screw, 207 is a grounding screw, 208 is an output wiring terminal screw hole, 209 is an output wiring screw hole, 210 is a right current terminal, 211 is a fixed screw hole, 212 is a grounding terminal, 213 is a lower grounding screw hole, 214 is a grounding screw hole, 215 is a grounding wire connection screw, 216 is a connecting hole, 217 is an insulated handle, 218 is an upper grounding screw hole, 219 is a current terminal connecting sheet, 220 is a lower positioning bulge, 221 is a grounding terminal short connecting sheet, 221a conductive sheet, 221b is an insulated base, 221c is a grounding, 227 left positioning projection and 228 right positioning projection.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 10, a current terminal structure with a grounding function comprises an insulating base plate 1 and a conductive assembly 2 mounted on the insulating base plate 1, wherein the conductive assembly 2 comprises a left current terminal 203 and a right current terminal 210, the left current terminal 203 is provided with an input wiring screw hole 201, the right current terminal 210 is provided with an output wiring screw hole 209, the input wiring terminal screw 202 is detachably connected with the left current terminal 203 through the input wiring screw hole 201, the output wiring terminal screw 208 is detachably connected with the right current terminal 210 through the output wiring screw hole 209, the insulating base plate 1 is provided with an upper supporting part 102 and a lower supporting part 101, the lower supporting part 101 is arranged below the upper supporting part 102, the left current terminal 203 and the right current terminal 210 are arranged above the upper supporting part 102, a grounding terminal 212 is arranged between the upper supporting part 102 and the lower supporting part 101, the left current terminal 203 and the right current terminal 210 are respectively provided with a grounding hole 224, the left current terminal 203 and the right current terminal 210 are respectively provided with an upper grounding threaded hole 218, the grounding terminal 212 is provided with two lower grounding threaded holes 213, one grounding screw 207 is used for sequentially passing through one test grounding hole 224, the upper grounding threaded hole 218 and the lower grounding threaded hole 213 to be connected with the left current terminal 203 and the grounding terminal 212, and the other grounding screw 207 is used for sequentially passing through the other test grounding hole 224, the upper grounding threaded hole 218 and the lower grounding threaded hole 213 to be connected with the right current terminal 210 and the grounding terminal 212.
In order to facilitate the connection or disconnection of the current between the left current terminal 203 and the right current terminal 210, the conductive assembly 2 further includes a ground terminal 212, a left limiting groove 225 is formed on the side of the left current terminal 203 opposite to the right current terminal 210, a right limiting groove 226 is formed on the side of the right current terminal 210 opposite to the left current terminal 203, a first fixing screw hole 204 is formed on the left current terminal 203 under the left limiting groove 225, a second fixing screw hole which is formed at an interval in the length direction is formed on the right current terminal 210 under the right limiting groove 226, the interval between the first fixing screw hole 204 and the second fixing screw hole 211 which is close to the first fixing screw hole 204 is d1, the center distance between the two fixing screw holes 211 is d2, the d connecting piece 1 is the same as d2, the current terminal connecting piece 219 is placed on the left current terminal 203 and the right current terminal 210, an insulating handle 217 is arranged on the upward side of the current terminal 219, and the current terminal connecting piece 219 can slide along the left limiting groove, the current terminal connecting piece 219 is provided with two fixing holes 223 with a center distance d 2.
In order to realize the grounding of the wire connecting terminal, the conductive assembly 2 further comprises a grounding terminal short connecting piece 221, the grounding terminal short connecting piece 221 comprises an insulating base 221b, a conductive piece 221a is connected to the insulating base 221b, a grounding groove 221c for placing a grounding wire is formed in the conductive piece 221a, a grounding short connecting hole 222 is formed in the side portion of the grounding terminal 212, the conductive piece 221a is connected with the grounding terminal 212 through the grounding short connecting hole 222, a grounding screw hole 214 is formed in the grounding terminal 212, and a grounding wire connecting screw 215 is screwed into the grounding screw hole 214 to tightly press the conductive piece 221a and the grounding wire; the left current terminal 203 is provided with a connection hole 216 coaxial with the ground screw hole 214, and the connection hole 216 communicates with the ground short hole 222.
In order to facilitate the positioning of the conductive component 2 and the insulating floor, two upper positioning grooves one 103 are formed in the upper supporting part 102, two left positioning protrusions 227 extending downwards are arranged on the downward side of the left current terminal 203, and the left current terminal 203 is respectively arranged in the two upper positioning grooves one 103 through the two left positioning protrusions 227; the upper supporting part 102 is also provided with a second upper positioning groove 105, the downward side of the right current terminal 210 is provided with two right positioning bulges 228 extending downwards, and the right current terminal 210 is respectively arranged in the two second upper positioning grooves 105 through the two right positioning bulges 228; at least two lower positioning protrusions 220 extending downwards are disposed on the downward side of the ground terminal 212, the lower positioning groove 104 corresponding to the lower positioning protrusions 220 is disposed on the lower supporting portion 101, and the lower positioning protrusions 220 can be disposed in the lower positioning grooves 104.
In the utility model, the current input line is screwed into the input wiring screw hole 201 through the input wiring terminal screw 202 to be connected with the left current terminal 203, and the current output line is screwed into the output wiring screw hole 209 through the output wiring terminal screw 208 to be connected with the right current terminal 210; in the practical application of the current loop, the four current terminals of the present invention are set into a group of four terminals, which are respectively used for current transformer secondary A, B, C and N phase, the four ground terminals 212 are respectively short-circuited at the four short-circuit holes 222 by using the ground terminal short-circuit piece 221 shown in fig. 4, and are inserted into the ground line of the current transformer secondary loop in any short-circuit hole 222 of A, B, C and N phase, an insulating screwdriver is used to respectively pass through A, B, C and the current terminal connection hole 216 on the left side of N phase, the ground terminal short-circuit piece 221 and the ground line are screwed down at the bottom of the ground screw hole 214 by using the ground screw 207, so as to ensure the reliability of grounding; when the current loop is normally used, one end of a current terminal connecting piece 219 is placed on a left current terminal 203 corresponding to a first limiting groove, the other end of the current terminal connecting piece 219 is placed on a right current terminal 210 corresponding to a second limiting groove, two fixing holes 223 are coaxial with a first fixing screw hole 204 and a second fixing screw hole 211 respectively, a current input connecting screw 205 penetrates through the fixing hole 223 and is screwed into the first fixing screw hole 204, the current input connecting screw 205 is screwed, a current output connecting screw 206 penetrates through the fixing hole 223 and is screwed into the second fixing screw hole 211, and the current output connecting screw 206 is screwed to enable current to pass through; A. b, C and the N-phase grounding terminal 212 are normally in a grounding state, an insulating screwdriver is used to extend into the left current terminal connecting hole 216, the screwdriver passes through the connecting hole 216 to screw the grounding terminal short connecting piece 221 and the grounding wire at the bottom of the grounding screw hole 214 by the grounding screw 207, when the current terminal input side (the left current terminal 203 is the power supply side, namely the input side) withdraws from the secondary load, in order to prevent the secondary open circuit of the current loop from generating high voltage, the left current terminal 203 needs to be grounded, the grounding screw 207 is firstly inserted from the test grounding hole 224, the grounding screw 207 is screwed into the upper grounding screw hole 218 of the left current terminal 203 and the lower grounding screw hole 213 of the grounding terminal 212 in turn, after the left current terminal 203 is grounded, the current terminal connecting piece 219 is opened, the current terminal connecting piece 219 is moved to the right current terminal 210 corresponding to the two limiting grooves, the two fixing holes 223 are respectively coaxial with the two fixing screw holes, current breaking is achieved by screwing current terminal connection tab 219 to right current terminal 210 using current input connection screw 205 and current output connection screw 206; when the current terminal is withdrawn from the secondary load at the load side (the right current terminal 210 is the load side, i.e., the output side), in order to prevent the secondary open circuit of the current loop from generating high voltage, another grounding screw 207 is inserted into the test grounding hole 224 of the right current terminal 210, the grounding screw 207 passes through the test grounding hole 224 and then is screwed into the upper grounding threaded hole 218 of the right current terminal 210 and the lower grounding threaded hole 213 of the grounding terminal 212 in sequence, the right current terminal 210 and the grounding terminal 212 are connected and screwed, and then the right current terminal 210 is removed to output a secondary current line; when the current transformer stops running, the current terminal connecting sheet 219 is opened, the left testing grounding hole 224 can be used for testing wiring of the current transformer, the right testing grounding hole 224 can be used for testing wiring of load equipment, a load secondary wire does not need to be detached, equipment misoperation caused by wiring errors is avoided, a current element can be temporarily added between the two testing grounding holes 224 during running of the current transformer, a current loop secondary wire does not need to be detached (the current element is connected in series and then is pulled out of the current terminal connecting sheet 219), and safety is improved; the utility model has convenient current on-off realization, and can realize rapid short circuit grounding of the current loop, which is more convenient and rapid; the grounding device can be applied to the work of switching on and off the current loop grounding.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (8)
1. The utility model provides a take current terminal structure of ground connection function, includes insulating bottom plate and installs the conductive component on insulating bottom plate, conductive component includes left current terminal and right current terminal, and it has input wiring screw to open on the left current terminal, and it has output wiring screw to open on the right current terminal, uses input wiring terminal screw to be connected with left current terminal detachably through input wiring screw, uses output wiring terminal screw to be connected its characterized in that through output wiring screw and right current terminal detachably: the utility model discloses an insulation base plate, including insulation bottom plate, upper supporting part and lower supporting part, lower supporting part is equipped with supporting part and lower supporting part on the insulation bottom plate, and left current terminal and right current terminal are at the upper supporting part upside, and ground terminal sets up between upper supporting part and lower supporting part, it has the test ground hole to open respectively on left side current terminal and the right current terminal, respectively opens on left side current terminal and the right current terminal has ground connection screw hole, and it has two ground connection screw holes down to open on the ground terminal, uses a ground screw to pass a test ground hole in proper order, goes up ground connection screw hole and ground connection screw hole down and is connected with left current terminal and ground terminal respectively, uses another ground screw to pass another test ground hole in proper order, goes up ground connection screw hole and ground connection screw hole.
2. The current terminal structure with grounding function as claimed in claim 1, wherein: the conductive assembly further comprises a grounding terminal, a left limiting groove is formed in one side, provided with a left current terminal, of the left current terminal, a right limiting groove is formed in one side, provided with a right current terminal, of the right current terminal, a first fixing screw hole is formed in the left current terminal on the lower side of the left limiting groove, a second fixing screw hole is formed in the right current terminal on the lower side of the right limiting groove at intervals in the length direction, the distance between the first fixing screw hole and the second fixing screw hole close to the first fixing screw hole is d1, the center distance between the two fixing screw holes is d2, d1 is identical to d2, current terminal connecting pieces are placed on the left current terminal and the right current terminal, the current terminal connecting pieces can slide along the left limiting groove and the right limiting groove, and two fixing holes with the center distance of d2 are formed in the current terminal connecting pieces.
3. The current terminal structure with grounding function as claimed in claim 1, wherein: the conductive assembly further comprises a ground terminal short connecting piece which comprises an insulating base, a conductive piece is connected onto the insulating base, a ground groove used for placing a ground wire is formed in the conductive piece, a ground short connecting hole is formed in the side portion of the ground terminal, the conductive piece is connected with the ground terminal through the ground short connecting hole, a ground screw hole is formed in the ground terminal, and a ground wire connecting screw is screwed into the ground screw hole to tightly press the conductive piece and the ground wire.
4. The current terminal structure with grounding function as claimed in claim 3, wherein: and a connecting hole coaxial with the grounding screw hole is formed in the left current terminal and is communicated with the grounding short-circuit hole.
5. The current terminal structure with grounding function as claimed in claim 1, wherein: the upper supporting part is provided with two upper positioning grooves I, one side of the left current terminal facing downwards is provided with two left positioning bulges extending downwards, and the left current terminal is arranged in the two upper positioning grooves I through the two left positioning bulges respectively.
6. The current terminal structure with grounding function as claimed in claim 1, wherein: the upper supporting part is further provided with a second upper positioning groove, one side of the right current terminal facing downwards is provided with two right positioning bulges extending downwards, and the right current terminal is respectively arranged in the second upper positioning grooves through the two right positioning bulges.
7. The current terminal structure with a grounding function according to any one of claims 1 to 6, wherein: the downward side of the grounding terminal is provided with at least two downward extending lower positioning bulges, the lower supporting part is provided with a lower positioning groove corresponding to the lower positioning bulges, and the lower positioning bulges can be arranged in the lower positioning groove.
8. The current terminal structure with grounding function as claimed in claim 2, wherein: and an insulating handle is arranged on one upward side of the current terminal connecting sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101775.2U CN210245745U (en) | 2019-07-15 | 2019-07-15 | Current terminal structure with grounding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101775.2U CN210245745U (en) | 2019-07-15 | 2019-07-15 | Current terminal structure with grounding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245745U true CN210245745U (en) | 2020-04-03 |
Family
ID=69991227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921101775.2U Active CN210245745U (en) | 2019-07-15 | 2019-07-15 | Current terminal structure with grounding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245745U (en) |
-
2019
- 2019-07-15 CN CN201921101775.2U patent/CN210245745U/en active Active
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