CN108010808B - Base for miniature circuit breaker - Google Patents
Base for miniature circuit breaker Download PDFInfo
- Publication number
- CN108010808B CN108010808B CN201711465085.0A CN201711465085A CN108010808B CN 108010808 B CN108010808 B CN 108010808B CN 201711465085 A CN201711465085 A CN 201711465085A CN 108010808 B CN108010808 B CN 108010808B
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- power receiving
- plate part
- metal frame
- guide rail
- base
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- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 68
- 229910052751 metal Inorganic materials 0.000 claims description 68
- 238000003825 pressing Methods 0.000 claims description 38
- 230000005611 electricity Effects 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 13
- 230000003014 reinforcing effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention discloses a base for a miniature circuit breaker, which comprises two power receiving seats and two mounting guide rail assemblies, wherein the two power receiving seats are respectively fixedly arranged on a corresponding mounting guide rail assembly; each power receiving seat is provided with a wiring terminal assembly with a power receiving slot; each mounting guide rail component comprises a fixing piece, a top plate and a jacking screw; the fixing piece comprises a fixing base plate part, support plate parts which are formed by extending upwards and vertically from two side ends of the fixing base plate part, and slide plate parts which are formed by bending and extending from the top end of each support plate part towards the direction approaching to the other support plate part, wherein a gap is reserved between the two slide plate parts in each installation guide rail assembly; the roof is located between two extension board parts of the installation guide rail assembly, and is located between the fixed base board part and the bottom wall of the power receiving seat, and the roof is provided with screw holes matched with the jacking screws. The invention has higher installation strength and is not easy to shift or fall off.
Description
Technical Field
The invention belongs to the technical field of power circuit breakers, and particularly relates to a base for a miniature circuit breaker.
Background
In the prior art, a C45 clamping rail mounting mode is generally adopted for the miniature circuit breaker, and specifically, the bottom of the miniature circuit breaker is clamped on a C45 standard clamping rail. The upper and lower parts of the circuit breaker are respectively provided with a wire frame which is tightly pressed with the power supply side and the load side through wire connecting screws. When the product has a fault and needs to be maintained or replaced, the power supply is firstly disconnected, then the lead is removed, the product is detached from the clamping rail, a new product is installed, wiring is carried out, and the power supply is connected to supply power. The clamping mode is simple and easy to implement, has been widely used, and is the current mainstream. However, in the installation process, the line power supply is discontinuous, the power-off time is long, and the installation method is not suitable for the industries requiring power supply continuity, such as a data center, a communication power supply and the like, for installation, dismantling and maintenance. In addition, the clamping is adopted, so that the stability is better, but the clamping is easy to shift or fall off under the environment with severe vibration.
Disclosure of Invention
The invention aims to provide a base for a miniature circuit breaker, which has good installation strength and is not easy to shift or fall off.
The technical scheme for realizing the aim of the invention is as follows: the base for the miniature circuit breaker comprises two power receiving seats and two mounting guide rail assemblies, wherein the two power receiving seats are respectively fixedly arranged on a corresponding one of the mounting guide rail assemblies; each power receiving seat is provided with a wiring terminal assembly with a power receiving slot; each mounting guide rail component comprises a fixing piece, a top plate and a jacking screw; the fixing piece comprises a fixing base plate part, support plate parts which are formed by extending upwards and vertically from two side ends of the fixing base plate part, and slide plate parts which are formed by bending and extending from the top end of each support plate part towards the direction approaching to the other support plate part, wherein a gap is reserved between the two slide plate parts in each installation guide rail assembly; the roof is located between two extension board parts of the installation guide rail assembly and is located between the fixed base board part and the bottom wall of the power receiving seat, and the roof is provided with screw holes matched with the jacking screws.
In the scheme, each power receiving seat comprises a plastic shell and a wiring terminal assembly; each wiring terminal assembly comprises a metal frame, a wire pressing bolt, a conductive terminal and a metal clamp spring; the conductive terminal comprises a line pressing plate part and a power receiving plate part; two electricity receiving clamping pieces with gaps are arranged on the electricity receiving plate part, and the two electricity receiving clamping pieces are clamped to form an electricity receiving slot; a bearing boss is arranged on each power receiving clamping piece; and the two ends of the metal snap spring are respectively provided with a trepanning, and each bearing boss is inserted into a corresponding trepanning.
In the scheme, the conductive terminal is embedded and fixed on the inner wall of the plastic shell of the power receiving seat, and the metal frame is movably arranged in the plastic shell; the metal frame is made of steel plates into a rectangular shape, and screw holes are formed in the top of the metal frame; the line ball screw includes fastening head and screw rod, screw rod and the screw adaptation on the metal frame.
In the scheme, the wire pressing plate part of the conductive terminal penetrates through the metal frame and is arranged in parallel with the bottom wall of the metal frame; the wire pressing plate part is clamped with the bottom wall of the metal frame to form a wire clamping hole; the bottom of the screw rod of the line ball bolt is pressed and connected on the line ball board part.
In the scheme, the shape of the metal clamp spring is an arc shape larger than a semicircle; the distance between the two bearing bosses is larger than the distance between the two trepanning.
In the scheme, the electric connection plate part of the conductive terminal is perpendicular to the line pressing plate part, and the conductive terminal is integrally made of copper plates; the metal snap spring is made of steel.
The invention has the following positive effects: because the bolt drives the top plate to clamp the wiring seat on the installation guide rail assembly, the traditional clamping installation is replaced, and the installation structure has higher installation strength and is not easy to shift or fall off.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded view of the base of FIG. 1;
Fig. 3 is a schematic perspective view of a miniature circuit breaker using the base of fig. 1;
fig. 4 is a schematic view of an internal structure of the miniature circuit breaker of fig. 3 when viewed from a front perspective;
fig. 5 is an exploded view of the miniature circuit breaker of fig. 3;
Fig. 6 is a schematic perspective view of a power strip and terminal assembly of the miniature circuit breaker of fig. 3;
FIG. 7 is an exploded view of the electrical panel and terminal assembly of FIG. 6;
FIG. 8 is an exploded view of the electrical panel and terminal assembly of FIG. 6 from another angle;
fig. 9 is an exploded view of the miniature circuit breaker of fig. 3 with the terminal assembly removed from the snap spring.
The reference numerals are as follows: the plug-in type switch module comprises a base 1, a power receiving seat 11, a sliding chute 111, a plastic housing 112, a drop-out prevention slot 1121, a sliding rail component 12, a fixing piece 121, a fixing base plate portion 1211, a supporting plate portion 1212, a sliding plate portion 1213, a notch 1214, a top plate 122, a push-on screw 123, a plug-in type switch module 2, an insulating housing 21, a drop-out prevention panel 211, a power feeding plug 22, a welding portion 221, a power feeding plug 23, a wire terminal assembly 3, a metal frame 31, a top portion 311 of the metal frame, a screw hole 312, a bottom wall 313 of the metal frame, a wire pressing bolt 32, a fastening head 321, a screw 322, a conductive terminal 33, a wire pressing plate portion 331, a guide portion 3311, a power receiving plate portion 332, a power receiving clip 3321, a power receiving slot 3322, a bearing boss 3323, a reinforcing plate portion 3324, a metal clip 34, a sleeve hole 341, a switch-on operating mechanism 4, a fixed contact 41, a movable contact 42, a movable contact lever 421, a connecting rod 422, a movable contact 423, a trip 43, a switch-off handle 44, a latch 45, a torsion spring 46, a tape casting tripping mechanism 47, a bimetallic strip 471, a transient tripping mechanism, a screw-in-out mechanism 48, a transient-tripping mechanism, a winding mechanism 481, a winding assembly 48.
Detailed Description
Example 1, base
The present embodiment is a base for a miniature circuit breaker, as shown in fig. 1 to 9, the base 1 includes two power receiving seats 11 and two slide rail assemblies 12, each of the two power receiving seats being fixedly disposed on a corresponding one of the slide rail assemblies; the two slide rail assemblies are arranged in parallel, and each slide rail assembly comprises a fixing piece 121, a top plate 122 and a jacking screw 123; the fixing piece comprises a fixing base plate 1211, support plate parts 1212 which are formed by extending upwards and vertically from two side ends of the fixing base plate, and slide plate parts 1213 which are formed by bending and extending from the top end of each support plate part towards the direction approaching to the other support plate part, wherein a gap 1214 is reserved between the two slide plate parts in each slide rail assembly; two sides of each power receiving seat are respectively provided with a sliding groove 111 matched with the sliding plate parts, and each sliding plate part extends into a corresponding sliding groove; the fixed base plate part is provided with a mounting hole (not shown in the figure), and the fixed base plate part is fixed at a required position by the mounting hole and an external mounting screw; the top plate is positioned between the two support plate parts of the sliding rail assembly and between the fixed substrate part and the bottom wall of the power receiving seat, and is provided with screw holes matched with the jacking screws; when the jacking screw rotates along the preset direction, the bottom wall of the jacking screw is jacked on the fixed base plate part, and as the top plate is limited by the two support plate parts and cannot rotate, the top plate moves towards the direction away from the fixed base plate part until being jacked on the bottom wall of the power receiving seat; under the clamping action of the top plate and the sliding plate, the power receiving seat is fixed on the corresponding sliding rail component; the power receiving seat can move along the sliding plate by loosening the jacking screw.
Each socket comprises a plastic housing 112 and a terminal assembly 3 disposed in the plastic housing; the wiring terminal assembly comprises a metal frame 31, a wire pressing bolt 32, a conductive terminal 33 and a metal clamp spring 34; the metal frame is made of steel plates and is rectangular, and screw holes 312 are formed in the top 311 of the metal frame; the line pressing bolt comprises a fastening head 321 and a screw 322, and the screw is matched with a screw hole on the metal frame; the conductive terminal includes a wire pressing plate portion 331 and a wire receiving plate portion 332; the conductive terminal is embedded and fixed on the inner wall of the plastic shell of the power receiving seat, and the metal frame is movably arranged in the plastic shell; the wire pressing plate part of the conductive terminal passes through the metal frame and is arranged in parallel with the bottom wall 313 of the metal frame; the wire pressing plate part is clamped with the bottom wall of the metal frame to form a cable clamping hole; the bottom end of the screw rod of the line pressing bolt is pressed and connected to the line pressing plate part; when the wire pressing bolt rotates reciprocally in the screw hole of the metal frame, the bottom end of the screw rod of the wire pressing bolt is pressed on the wire pressing plate part, and the metal frame cannot rotate under the limit of the plastic shell, so that the metal frame moves reciprocally along the direction of the screw rod, and the wire in the wire clamping hole is clamped by the wire pressing part and the bottom wall of the metal frame, so that the electric connection between the conductive terminal and the external power supply is realized.
The electric connection plate part of the conductive terminal is perpendicular to the line pressing plate part, and the conductive terminal is integrally made of copper plates; two electricity receiving clamping pieces 3321 with gaps are arranged on the electricity receiving plate part, and the two electricity receiving clamping pieces are clamped to form an electricity receiving slot 3322; a bearing boss 3323 made by stamping process is arranged on each power receiving clamping piece; the metal snap spring is made of steel, the shape of the metal snap spring is an arc shape larger than a semicircle, two ends of the metal snap spring are provided with a sleeve hole 341, and each bearing boss is inserted into a corresponding sleeve hole. In specific practice, the distance between the two bearing bosses is preferably greater than the distance between the two trepanning, typically greater than 0.05 to 0.3 mm; therefore, when the metal clamp spring is assembled, the metal clamp spring needs to be slightly unfolded to enable the two sleeve holes to be sleeved on the two bearing bosses, so that an internal stress is formed, and a good clamping effect is achieved by utilizing the internal stress. The two sides of the two electric connection clamping pieces are respectively provided with a reinforcing plate part 3324, and a gap is reserved between each reinforcing plate part and the adjacent electric connection clamping piece 3321 so as not to prevent the elastic deformation of the wire clamping plate part. The reinforcing plate portion serves to increase the strength of the connection between the power board portion and the voltage board portion, and also to insert and fix the two reinforcing plate portions in the plastic housing 112, if necessary.
In this embodiment, the outer end of the pressing plate 331 extends out of the metal frame and is curled upward in an arc shape as the guiding portion 3311, so that the external connection wire is more easily inserted into the cable clamping hole.
The adoption of the structure has the following advantages: the conductive terminal is made of copper materials with good conductivity, but the strength of the copper materials is poor, and the copper materials are easy to deform, so that the electrical contact performance of the power receiving slot is poor; the invention provides clamping elasticity for the copper material by adding the metal clamping spring, effectively overcomes the technical defects, simplifies the structure and ensures the long-term service life.
In this embodiment, an anti-disengaging slot 1121 is formed on the outer wall of the plastic housing 112 of the power receiving seat 11, and the anti-disengaging slot is T-shaped.
(Application example 1, miniature Circuit breaker)
The application example is a miniature circuit breaker manufactured by adopting the embodiment 1, and is shown in fig. 3 to 9, and comprises a base 1 and a plug-in type switch module 2; the base is provided with two power receiving seats 11 and two slide rail assemblies 12, and the two power receiving seats are respectively fixedly arranged on a corresponding slide rail assembly; the two slide rail assemblies are arranged in parallel, and each slide rail assembly comprises a fixing piece 121, a top plate 122 and a jacking screw 123; the fixing piece comprises a fixing base plate 1211, support plate parts 1212 which are formed by extending upwards and vertically from two side ends of the fixing base plate, and slide plate parts 1213 which are formed by bending and extending from the top end of each support plate part towards the direction approaching to the other support plate part, wherein a gap 1214 is reserved between the two slide plate parts in each slide rail assembly; two sides of each power receiving seat are respectively provided with a sliding groove 111 matched with the sliding plate parts, and each sliding plate part extends into a corresponding sliding groove; the fixed base plate part is provided with a mounting hole (not shown in the figure), and the fixed base plate part is fixed at a required position by the mounting hole and an external mounting screw; the top plate is positioned between the two support plate parts of the sliding rail assembly and between the fixed base plate part and the bottom wall of the power receiving seat, and is provided with screw holes matched with the jacking screws; when the jacking screw rotates along the preset direction, the bottom wall of the jacking screw is jacked on the fixed base plate part, and the top plate moves in the direction away from the fixed base plate part until being jacked on the bottom wall of the power receiving seat as the top plate is limited by the two support plate parts and cannot rotate; under the clamping action of the top plate and the sliding plate, the power receiving seat is fixed on the corresponding sliding rail component; the power receiving seat can move along the sliding plate by loosening the jacking screw.
The pluggable switch module comprises an insulating shell 21, an electric inlet plugboard 22, an electric outlet plugboard 23 and a switching-on and switching-off operating mechanism 4 for switching on and off a circuit between the electric inlet plugboard and the electric outlet plugboard. The inner side ends of the power-in plugboard and the power-out plugboard are fixedly arranged in the insulating shell, and the outer side ends of the power-in plugboard and the power-out plugboard extend out of the insulating shell and are positioned on two side wall bodies of the insulating shell; in this application example, the power in plugboard and the power out plugboard are perpendicular to the plug-in direction of the plug-in switch module, specifically, in this application example, the power in plugboard and the power out plugboard vertically extend out of two lateral walls of the insulating housing.
The lateral direction of the insulating housing as used herein refers to the direction from one socket to another.
The opening and closing operation mechanism comprises a fixed contact 41, a fixed contact 411, a movable contact 42, a movable contact lever 421, a connecting rod 422, a movable contact 423, a trip 43, an opening and closing handle 44, a lock catch 45, a torsion spring 46, an overcurrent time-delay tripping mechanism 47, a short-circuit instantaneous tripping mechanism 48 and an arc extinguishing chamber 49; the static contact is electrically connected with the power-in plugboard 22, the arc extinguishing chamber is arranged below the short-circuit instantaneous tripping mechanism, and the short-circuit instantaneous tripping mechanism comprises a coil assembly 481; the coil assembly comprises a coil and a brake release rod positioned in a central hole of the coil; the arc extinguishing chamber is positioned right below the coil assembly; the overcurrent time-delay tripping mechanism comprises a bimetallic strip 471 and an adjusting screw 472, and the adjusting screw is positioned above the power receiving seat, so that the adjustment is easy; the movable contact, the coil, the bimetallic strip and the electric outlet plugboard are electrically connected in sequence; in this application example, the stationary contact 41 also serves as an arc striking plate.
In the application example, the electric inlet plugboard 22 and the electric outlet plugboard 23 are integrally made of copper plates; the power feeding plugboard 22 comprises a double-layer plugboard part 222 and a welding tail board part 221, wherein the double-layer plugboard part 222 and the welding tail board part 221 are overlapped together and are welded and fixed on an external conductor, and the tail ends of the double-layer plugboard part are vertically bent and extended towards the direction of being away from each other to form the welding tail board part; the structure of the power-out plugboard is the same as that of the power-in plugboard. The electric inlet plugboard with the structure has better electric conduction performance and temperature rise control performance, and meanwhile, the welding area is effectively increased due to the two welding tail plate parts, so that the welding performance is improved.
Each socket comprises a plastic housing 112 and a terminal assembly 3 disposed in the plastic housing; the wiring terminal assembly comprises a metal frame 31, a wire pressing bolt 32, a conductive terminal 33 and a metal clamp spring 34; the metal frame is made of steel plates and is rectangular, and screw holes 312 are formed in the top 311 of the metal frame; the line pressing bolt comprises a fastening head 321 and a screw 322, and the screw is matched with a screw hole on the metal frame; the conductive terminal includes a wire pressing plate portion 331 and a wire receiving plate portion 332; the conductive terminal is embedded and fixed on the inner wall of the plastic shell of the power receiving seat, and the metal frame is movably arranged in the plastic shell; the wire pressing plate part of the conductive terminal passes through the metal frame and is arranged in parallel with the bottom wall 313 of the metal frame; the wire pressing plate part is clamped with the bottom wall of the metal frame to form a cable clamping hole; the bottom end of the screw rod of the line pressing bolt is pressed and connected to the line pressing plate part; when the wire pressing bolt rotates reciprocally in the screw hole of the metal frame, the bottom end of the screw rod of the wire pressing bolt is pressed on the wire pressing plate part, and the metal frame cannot rotate under the limit of the plastic shell, so that the metal frame moves reciprocally along the direction of the screw rod, and the wire in the wire clamping hole is clamped by the wire pressing part and the bottom wall of the metal frame, so that the electric connection between the conductive terminal and the external power supply is realized.
The electric connection plate part of the conductive terminal is perpendicular to the line pressing plate part, and the conductive terminal is integrally made of copper plates; two electricity receiving clamping pieces 3321 with gaps are arranged on the electricity receiving plate part, and the two electricity receiving clamping pieces are clamped to form an electricity receiving slot 3322; a bearing boss 3323 made by stamping process is arranged on each power receiving clamping piece; the metal snap spring is made of steel, the shape of the metal snap spring is an arc shape larger than a semicircle, two ends of the metal snap spring are provided with a sleeve hole 341, and each bearing boss is inserted into a corresponding sleeve hole. In specific practice, the distance between the two bearing bosses is preferably greater than the distance between the two trepanning, typically greater than 0.05 to 0.3 mm; therefore, when the metal clamp spring is assembled, the metal clamp spring needs to be slightly unfolded to enable the two sleeve holes to be sleeved on the two bearing bosses, so that an internal stress is formed, and a good clamping effect is achieved by utilizing the internal stress. The two sides of the two electric connection clamping pieces are respectively provided with a reinforcing plate part 3324, and a gap is reserved between each reinforcing plate part and the adjacent electric connection clamping piece 3321 so as not to prevent the elastic deformation of the wire clamping plate part. The reinforcing plate portion serves to increase the strength of the connection between the power board portion and the voltage board portion, and also to insert and fix the two reinforcing plate portions in the plastic housing 112, if necessary.
The power-in plugboard and the power-out plugboard are respectively inserted into or pulled out of the power-on slot of a corresponding power-on seat in the plugging process of the plug-in switch module, so that the electrical connection between the plug-in switch module and the two power-on seats is realized.
In this embodiment, the outer end of the pressing plate 331 extends out of the metal frame and is curled upwards in an arc shape as the guiding portion 3311, so that the external connection wire is easier to be inserted into the cable clamping hole.
The adoption of the structure has the following advantages: the conductive terminal is made of copper materials with good conductivity, but the strength of the copper materials is poor, and the copper materials are easy to deform, so that the electrical contact performance of the power receiving slot is poor; the invention provides clamping elasticity for the copper material by adding the metal clamping spring, effectively overcomes the technical defects, simplifies the structure and ensures the long-term service life.
In the application example, an anti-drop embedding groove 1121 is arranged on the outer wall of the plastic shell 112 of the power receiving seat 11, and the shape of the anti-drop embedding groove is T-shaped; the insulation shell 21 of the plug-in type switch module 2 is provided with an anti-falling panel 211 which is in a T shape matched with the anti-falling embedding groove; after the pluggable switch module is inserted into a preset station of the base, the anti-falling panel is embedded in the anti-falling embedding groove; the plug-in direction of the plug-in switch module is the longitudinal direction of the plug-in switch module, and the anti-falling panel extends along the transverse direction of the plug-in switch module, namely, the anti-falling panel is perpendicular to the plug-in direction of the plug-in switch module, so that the plug-in switch module and the two power receiving seats are fixed in the transverse direction along the plug-in switch module.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the invention remain within the scope of the invention.
Claims (6)
1. A base for a miniature circuit breaker, characterized by: the device comprises two power receiving seats and two mounting guide rail assemblies, wherein the two power receiving seats are respectively fixedly arranged on a corresponding one of the mounting guide rail assemblies; each power receiving seat is provided with a wiring terminal assembly with a power receiving slot;
Each mounting guide rail component comprises a fixing piece, a top plate and a jacking screw; the fixing piece comprises a fixing base plate part, support plate parts which are formed by extending upwards and vertically from two side ends of the fixing base plate part, and slide plate parts which are formed by bending and extending from the top end of each support plate part towards the direction approaching to the other support plate part, wherein a gap is reserved between the two slide plate parts in each installation guide rail assembly; the roof is located between two extension board parts of the installation guide rail assembly, and is located between the fixed base board part and the bottom wall of the power receiving seat, and the roof is provided with screw holes matched with the jacking screws.
2. The base for a miniature circuit breaker of claim 1, wherein: each power receiving seat comprises a plastic shell and a wiring terminal assembly; each wiring terminal assembly comprises a metal frame, a wire pressing bolt, a conductive terminal and a metal clamp spring; the conductive terminal comprises a line pressing plate part and a power receiving plate part; two electricity receiving clamping pieces with gaps are arranged on the electricity receiving plate part, and the two electricity receiving clamping pieces are clamped to form an electricity receiving slot; a bearing boss is arranged on each power receiving clamping piece; and the two ends of the metal snap spring are respectively provided with a trepanning, and each bearing boss is inserted into a corresponding trepanning.
3. The base for a miniature circuit breaker of claim 2, wherein: the conductive terminal is embedded and fixed on the inner wall of the plastic shell of the power receiving seat, and the metal frame is movably arranged in the plastic shell; the metal frame is made of steel plates into a rectangular shape, and screw holes are formed in the top of the metal frame; the line ball bolt includes fastening head and screw rod, screw hole adaptation on screw rod and the metal frame.
4. A base for a miniature circuit breaker according to claim 3, characterized in that: the wire pressing plate part of the conductive terminal passes through the metal frame and is arranged in parallel with the bottom wall of the metal frame; the wire pressing plate part is clamped with the bottom wall of the metal frame to form a wire clamping hole; the bottom of the screw rod of the line ball bolt is pressed and connected on the line ball board part.
5. The base for a miniature circuit breaker of claim 4, wherein: the shape of the metal clamp spring is an arc shape larger than a semicircle; the distance between the two bearing bosses is larger than the distance between the two trepanning.
6. The base for a miniature circuit breaker of claim 5, wherein: the electric connection plate part of the conductive terminal is perpendicular to the line pressing plate part, and the conductive terminal is integrally made of copper plates; the metal snap spring is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465085.0A CN108010808B (en) | 2017-12-28 | 2017-12-28 | Base for miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465085.0A CN108010808B (en) | 2017-12-28 | 2017-12-28 | Base for miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108010808A CN108010808A (en) | 2018-05-08 |
| CN108010808B true CN108010808B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711465085.0A Active CN108010808B (en) | 2017-12-28 | 2017-12-28 | Base for miniature circuit breaker |
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| CN (1) | CN108010808B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671587A (en) * | 2018-05-09 | 2019-04-23 | 德力西集团有限公司 | Electrical terminals and fuse disconnecting switch with the electrical terminals |
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| CN104252999A (en) * | 2013-06-25 | 2014-12-31 | 施耐德电器工业公司 | Pluggable terminal distribution product |
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| JPH07312235A (en) * | 1994-05-17 | 1995-11-28 | Kawamura Denki Sangyo Kk | Terminal structure for circuit breaker |
| CN2337661Y (en) * | 1998-07-06 | 1999-09-08 | 严炳元 | Main circuit switch |
| KR200243895Y1 (en) * | 2001-05-22 | 2001-10-29 | 서일전자 주식회사 | Structure for grounding a terminal block module |
| KR100512888B1 (en) * | 2003-04-17 | 2005-09-07 | 주식회사 오스템 | seat-track for vehicles |
| CN201725750U (en) * | 2010-07-30 | 2011-01-26 | 大江控股集团有限公司 | Miniature circuit breaker |
| CN203481157U (en) * | 2013-05-16 | 2014-03-12 | 梁刚 | Plug-in single-phase breaker |
| CN104851638A (en) * | 2015-04-27 | 2015-08-19 | 苏州君丰辰电子科技有限公司 | Novel power distribution switch |
| CN205984828U (en) * | 2016-08-30 | 2017-02-22 | 无锡市锡山湖光电器有限公司 | Outdoor breaker is with solid utmost point post equipment frock of sealing |
| CN107204261A (en) * | 2017-06-27 | 2017-09-26 | 浙江美格尔电气科技有限公司 | A kind of cage modle clam member termination for breaker of plastic casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103730300A (en) * | 2012-10-13 | 2014-04-16 | 温州市方为熔断器有限公司 | Fuse support piece (base) with DIN mobile guide rails |
| CN104252999A (en) * | 2013-06-25 | 2014-12-31 | 施耐德电器工业公司 | Pluggable terminal distribution product |
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