Circuit protection device for CPCI power supply

Abstract

The utility model relates to the technical field of power supply equipment, in particular to a circuit protection device for a CPCI power supply. The circuit breaker comprises a circuit breaker body, a first connecting base is arranged on the circuit breaker body, a first conducting strip is arranged on the first connecting base and used for connecting the circuit breaker body with an external circuit, a cover plate is arranged on the circuit breaker body, a first through opening is formed in the cover plate, and the first connecting base and the first conducting strip are both arranged below the cover plate and used for protecting the first conducting strip; the cover plate is provided with a pressurizing assembly, the pressurizing assembly adopts an adjusting screw rod and an adjusting screw cylinder as power elements, a second connecting seat is pushed to move, so that the second connecting seat and a first connecting seat form clamping, and fixation of an external circuit and a circuit breaker is completed. According to the utility model, the dial and the pointer are arranged, so that the moving distance of the connecting seat II can be intuitively known, the connection strength between the circuit breaker and an external circuit can be accurately guaranteed, and the connection stability between the circuit breaker and the external circuit is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply equipment technical field especially relates to a circuit protection device for CPCI power supply. BACKGROUND

[0002] CPCI power supply is specially used for CPCI case, and its circuit design aims at meeting the specific requirements and specifications of CPCI system, and the CPCI power supply circuit is usually composed of the following parts: input filter circuit: used for filtering the input power supply to eliminate high-frequency noise and interference in the power supply; rectifier circuit: converts the input AC power supply into DC power supply to provide stable DC voltage for subsequent power conversion; power conversion circuit: converts the input DC voltage into the DC voltage and current required by the system, which is usually realized through switching power supply or linear power supply circuit; output filter circuit: filters the output of the power conversion circuit to eliminate ripple noise in the output voltage and current; protection circuit: including overcurrent protection, overvoltage protection, short-circuit protection and other circuits, used for protecting the power supply and system safety under abnormal conditions.

[0003] During the use of CPCI power supply, the protection circuit is particularly important, and today, the devices used for overcurrent protection, overvoltage protection and short-circuit protection in the circuit include fuses, circuit breakers, leakage protectors and overvoltage protectors, etc., and during the use of these electrical appliances, it is necessary to be connected with the circuit of the power supply, and during the connection process, bolts are generally used for locking, but since the bolt is generally rotated by the operator, the locking force is different, and over-loose will cause the connection to be loose, which will increase the contact resistance and cause the current transmission in the circuit to be not smooth, and the loose connection is easy to produce arc or spark under the action of current, thereby increasing the risk of circuit short circuit, and the connection is too tight, and the bolt under the action of mechanical force and electromagnetic force for a long time may produce metal fatigue, shear or thread slipping, and may cause the wiring to be clamped off or damaged, thereby causing circuit failure. UTILITY MODEL CONTENTS

[0004] In view of the problems in the background art, a circuit protection device for CPCI power supply is provided.

[0005] The utility model provides a kind of circuit protection device for CPCI power supply, including circuit breaker, connection seat one is provided on circuit breaker, and conducting sheet one is provided on connection seat one, for the circuit connection of circuit breaker and outside, cover plate is provided on circuit breaker, and throughport one is provided on cover plate, and connection seat one and conducting sheet one are all arranged below cover plate, for the protection of conducting sheet one;Pressure assembly is provided on cover plate, and pressure assembly uses adjusting screw and adjusting cylinder as power element, by pushing connection seat two moves, so that connection seat two and connection seat one form clamping, complete the fixing of external circuit and circuit breaker.

[0006] Preferably, the cover plate is provided with an adjusting groove, the pressurizing assembly is composed of an adjusting cylinder, an adjusting screw, a cross screw head and a connecting seat two, the adjusting cylinder is arranged in the adjusting groove, the adjusting screw is rotatably arranged on the cover plate, one end of the adjusting screw extends into the adjusting cylinder and is threadedly connected with the adjusting cylinder, the cross screw head is arranged on the adjusting screw, the cross screw head is driven to rotate by the cross screw driver, the connecting seat two is slidably arranged on the circuit breaker, and the connecting seat two is connected with the adjusting cylinder.

[0007] Preferably, the cover plate is provided with a rotating rod rotatably arranged thereon, the adjusting groove is provided with an adjusting gear one and an adjusting gear two, the adjusting gear one is sleeved on the rotating rod, the adjusting gear two is sleeved on the adjusting screw, and the adjusting gear one and the adjusting gear two are meshedly connected, the cover plate is provided with a dial plate, the dial plate is provided with a pointer, and the pointer is connected with the rotating rod.

[0008] Preferably, the cover plate is provided with a sliding cavity, the sliding cavity is communicated with the through port one, a blocking plate is slidably arranged in the sliding cavity, the blocking plate is provided with a through port two, the through port two is matched with the through port one, a connecting through groove is formed in the inner wall of the sliding cavity, and a connecting block is slidably arranged in the connecting through groove, the connecting block is used for connecting the connecting seat two and the blocking plate, so that the connecting seat two drives the blocking plate to move.

[0009] Preferably, the blocking plate is provided with a cleaning strip, the cleaning strip is arranged above the blocking plate, and is used for shielding dust and impurities on the top of the blocking plate when the blocking plate moves.

[0010] Preferably, when the connecting seat two is driven to move, the adjusting screw drives the rotating rod and the pointer to rotate through the adjusting gear one and the adjusting gear two, the pointer rotates three circles when the adjusting screw rotates one circle, the moving distance of the connecting seat two can be directly understood through the rotating circles of the pointer on the dial plate, and the clamping force of the connecting seat one and the connecting seat two on the external circuit can be judged.

[0011] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0012] Through the arrangement of the cover plate and the blocking plate, the upper part of the connecting seat one and the conductive sheet one can be wrapped, so that the circuit breaker is not damaged or attached with dust from the external environment before use, the connection between the circuit breaker and the external circuit is not poor, and the use effect of the circuit breaker is guaranteed.

[0013] Through the arrangement of the dial plate and the pointer, the moving distance of the connecting seat two can be directly understood, so that the connection force of the circuit breaker and the external circuit can be accurately guaranteed, and then the connection stability of the circuit breaker and the external circuit is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model discloses a structure schematic view;

[0015] Figure 2 It is the structural schematic view of the circuit breaker in the utility model;

[0016] Figure 3 It is the partial sectional view structural schematic view of the utility model;

[0017] Figure 4 It is the sectional view structural schematic view of the cover plate in the utility model.

[0018] Reference signs: 1, circuit breaker;2, connecting seat one;3, cover plate;4, through port one;5, connecting seat two;6, adjusting screw;7, adjusting screw cylinder;8, plugging plate;9, cross screw head;10, adjusting gear one;11, adjusting gear two;12, pointer. DETAILED DESCRIPTION

[0019] As Figures 1-4 shown, the utility model provides a kind of circuit protection device for CPCI power supply, including: circuit breaker 1, connecting seat one 2 is provided on circuit breaker 1, connecting seat one 2 is provided with electrically conductive sheet one, for the circuit connection of circuit breaker 1 with outside, cover plate 3 is provided on circuit breaker 1, through port one 4 is provided on cover plate 3, connecting seat one 2 and electrically conductive sheet one are all arranged below cover plate 3, for the protection of electrically conductive sheet one;Cover plate 3 is provided with pressurizing assembly, pressurizing assembly adopts adjusting screw 6 and adjusting screw cylinder 7 as power element, by pushing connecting seat two 5 to move, make connecting seat two 5 and connecting seat one 2 form clamping, complete the fixing of external circuit and circuit breaker 1, the side of connecting seat two 5 towards connecting seat one 2 is provided with insulating sheet, for when extruding external circuit, avoid causing power leakage.

[0020] The adjusting groove is formed on the cover plate 3, the pressing assembly is composed of an adjusting cylinder 7, an adjusting screw 6, a cross screw head 9 and a connecting seat two 5, the adjusting cylinder 7 is arranged in the adjusting groove, the adjusting screw 6 is rotatably arranged on the cover plate 3, one end of the adjusting screw 6 extends into the adjusting cylinder 7 and is threadedly connected with the adjusting cylinder 7, the cross screw head 9 is arranged on the adjusting screw 6, the cross screw head 9 is rotated by the cross driver, the connecting seat two 5 is slidably arranged on the circuit breaker 1, the connecting seat two 5 is connected with the adjusting cylinder 7, a rotating rod is rotatably arranged on the cover plate 3, adjusting gears one 10 and two 11 are arranged in the adjusting groove, the adjusting gear one 10 is sleeved on the rotating rod, the adjusting gear two 11 is sleeved on the adjusting screw 6, the adjusting gears one 10 and two 11 are meshedly connected, a dial plate is arranged on the cover plate 3, a pointer 12 is arranged on the dial plate, the pointer 12 is connected with the rotating rod, a sliding cavity is formed on the cover plate 3, the sliding cavity is communicated with the through port one 4, a blocking plate 8 is slidably arranged in the sliding cavity, a through port two is formed on the blocking plate 8, the through port two is matched with the through port one 4, a connecting channel is formed on the inner wall of the sliding cavity, a connecting block is slidably arranged in the connecting channel, the connecting block is used for connecting the connecting seat two 5 and the blocking plate 8, so that the connecting seat two 5 drives the blocking plate 8 to move, a cleaning strip is arranged on the blocking plate 8 and located above the blocking plate 8, so as to shield the dust on the top of the blocking plate 8 when the blocking plate 8 moves.

[0021] When the connecting seat two 5 is pushed to move, the adjusting screw 6 drives the rotating rod and the pointer 12 to rotate through the adjusting gears one 10 and two 11, the adjusting screw 6 rotates one circle, and the pointer 12 rotates three circles, so that the moving distance of the connecting seat two 5 can be directly known through the rotating circles of the pointer 12 on the dial plate, and the clamping force of the connecting seat one 2 and the connecting seat two 5 on the external circuit can be judged.

[0022] In the embodiment, when the cross screw head 9 is rotated to drive the adjusting screw 6 to rotate, the connecting seat two 5 is pushed to move by the adjusting cylinder 7, the blocking plate 8 is driven to move, and the through port two on the blocking plate 8 is located on the same axis as the through port one 4, so that the external circuit can extend to the lower side of the cover plate 3 through the through port one 4 and the through port two and be connected with the conductive sheet one on the connecting seat one 2, then the pointer 12 and the dial plate can be observed, the cross screw head 9 is continuously rotated, the connecting seat two 5 is continuously pushed to move by the adjusting screw 6 and the adjusting cylinder 7, and the external circuit is clamped by the connecting seat two 5 and the connecting seat one 2, and the moving distance of the connecting seat two 5 can be determined through the rotating circles of the pointer 12, so as to guarantee the clamping force of the external circuit.

[0023] The embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to this, within the knowledge range of the technical personnel in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. A circuit protection device for CPCI power supplies, comprising: The application relates to a circuit breaker (1), characterized in that, The circuit breaker (1) is provided with a connecting seat one (2), the connecting seat one (2) is provided with a conductive sheet one, the conductive sheet one is used for connecting the circuit breaker (1) with an external circuit, the circuit breaker (1) is provided with a cover plate (3), the cover plate (3) is provided with a through opening one (4), the connecting seat one (2) and the conductive sheet one are arranged below the cover plate (3) and are used for protecting the conductive sheet one. The cover plate (3) is provided with a pressing assembly, the pressing assembly adopts an adjusting screw rod (6) and an adjusting screw cylinder (7) as power elements, the connecting seat two (5) is moved by being pushed, the connecting seat two (5) and the connecting seat one (2) form clamping, and the external circuit and the circuit breaker (1) are fixed.

2. A circuit protection device for CPCI power supply as defined in claim 1, wherein, The cover plate (3) is provided with an adjusting groove, the pressing assembly is composed of the adjusting screw cylinder (7), the adjusting screw rod (6), a cross screw head (9) and the connecting seat two (5), the adjusting screw cylinder (7) is arranged in the adjusting groove, the adjusting screw rod (6) is rotatably arranged on the cover plate (3), one end of the adjusting screw rod (6) extends into the adjusting screw cylinder (7) and is in threaded connection with the adjusting screw cylinder (7), the cross screw head (9) is arranged on the adjusting screw rod (6), an operator can conveniently drive the cross screw head (9) to rotate through a cross screwdriver, and the connecting seat two (5) is slidably arranged on the circuit breaker (1) and is connected with the adjusting screw cylinder (7).

3. A circuit protection device for a CPCI power supply according to claim 2, wherein, The cover plate (3) is rotatably provided with a rotating rod, the adjusting groove is provided with an adjusting gear one (10) and an adjusting gear two (11), the adjusting gear one (10) is sleeved on the rotating rod, the adjusting gear two (11) is sleeved on the adjusting screw rod (6), the adjusting gear one (10) and the adjusting gear two (11) are in meshing connection, the cover plate (3) is provided with a dial plate, the dial plate is provided with a pointer (12), and the pointer (12) is connected with the rotating rod.

4. A circuit protection device for a CPCI power supply according to claim 3, wherein The cover plate (3) is provided with a sliding cavity, the sliding cavity is communicated with the through opening one (4), a blocking plate (8) is slidably arranged in the sliding cavity, the blocking plate (8) is provided with a through opening two, the through opening two is matched with the through opening one (4), a connecting groove is formed in the inner wall of the sliding cavity, a connecting block is slidably arranged in the connecting groove, the connecting block is used for connecting the connecting seat two (5) and the blocking plate (8) and enabling the connecting seat two (5) to drive the blocking plate (8) to move.

5. A circuit protection device for a CPCI power supply according to claim 4, wherein The blocking plate (8) is provided with a cleaning strip, the cleaning strip is arranged above the blocking plate (8) and is used for shielding dust and impurities on the top of the blocking plate (8) when the blocking plate (8) moves.

6. A circuit protection device for a CPCI power supply according to claim 5, wherein, When the connecting seat two (5) is pushed to move, the adjusting screw rod (6) drives the rotating rod and the pointer (12) to rotate through the adjusting gear one (10) and the adjusting gear two (11), the adjusting screw rod (6) rotates one circle, the pointer (12) rotates three circles, the moving distance of the connecting seat two (5) can be directly known through the rotating circle number of the pointer (12) on the dial plate, and the clamping force of the connecting seat one (2) and the connecting seat two (5) on the external circuit can be judged.

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