阅读说明：本技术 一种抽屉式配电柜用防过载触头烧糊短路的智能化装置 (Intelligent device for preventing overload contact burning-out and short circuit for drawer type power distribution cabinet ) 是由 徐秋菊 于 2021-01-23 设计创作，主要内容包括：本发明涉及配电盘技术领域,且公开了一种抽屉式配电柜用防过载触头烧糊短路的智能化装置,包括抽屉箱,所述抽屉箱表面活动连接有静触头,静触头的另一端固定连接有弹簧,静触头的表面活动连接有动触头,动触头的另一端固定连接有导线,导线的表面活动连接有导热丝,导热丝的另一端固定连接有膨胀片,膨胀片的表面活动连接有连杆,弹性杆的另一端活动连接有分离板,T形杆的表面活动连接有风扇,电流过载时,使得膨胀片吸热膨胀,向外侧推动连杆,使得分离板沿着自身的中点转动,对动触头表面的挤压,使得动触头与静触头分离,通过膨胀片膨胀时向外侧挤压连杆,使得风扇转动,将弹簧表面的热量散出。(The invention relates to the technical field of distribution boards, and discloses an intelligent device for preventing burning and short circuit of an overload contact for a drawer type power distribution cabinet, which comprises a drawer box, wherein the surface of the drawer box is movably connected with a static contact, the other end of the static contact is fixedly connected with a spring, the surface of the static contact is movably connected with a movable contact, the other end of the movable contact is fixedly connected with a conducting wire, the surface of the conducting wire is movably connected with a heat conducting wire, the other end of the heat conducting wire is fixedly connected with an expansion sheet, the surface of the expansion sheet is movably connected with a connecting rod, the other end of an elastic rod is movably connected with a separating plate, the surface of a T-shaped rod is movably connected with a fan, when current is overloaded, the expansion sheet absorbs heat to expand, the connecting rod is pushed outwards to enable the separating plate to rotate, so that the fan rotates to dissipate heat from the surface of the spring.)

1. The utility model provides a drawer type switch board is with intelligent device of overload contact burning out short circuit, includes drawer box (1), its characterized in that: the surface of the drawer box (1) is movably connected with a static contact (2), the other end of the static contact (2) is fixedly connected with a spring (3), the surface of the static contact (2) is movably connected with a moving contact (4), the other end of the moving contact (4) is fixedly connected with a lead (5), the surface of the lead (5) is movably connected with a heat conducting wire (6), the other end of the heat conducting wire (6) is fixedly connected with an expansion sheet (7), the surface of the expansion sheet (7) is movably connected with a connecting rod (8), the surface of the connecting rod (8) is fixedly connected with a chute (9), the surface of the chute (9) is movably connected with a sliding block (10), the side surface of the sliding block (10) is fixedly connected with a spring wire (11), the surface of the sliding block (10) is movably connected with a push rod (12), the other end of the push rod (12, the other end of the elastic rod (14) is movably connected with a separating plate (15), the surface of the push rod (12) is movably connected with a limiting frame (16), the other end of the connecting rod (8) is fixedly connected with a T-shaped rod (17), the surface of the T-shaped rod (17) is movably connected with a fan (18), and the surface of the fan (18) is movably connected with a heat dissipation bin (19).

2. The intelligent device for preventing the burning and short circuit of the overload contact for the drawer type power distribution cabinet according to claim 1, is characterized in that: the number of the static contacts (2) is two, the moving contact (4) is movably connected between the two static contacts (2), and the other end of the spring (3) is fixedly connected with the surface of the drawer box (1).

3. The intelligent device for preventing the burning and short circuit of the overload contact for the drawer type power distribution cabinet according to claim 1, is characterized in that: the heat conducting wires (6) are wound on the surface of the lead (5), and the expansion sheet (7) absorbs heat and expands and deforms towards one end of the connecting rod (8).

4. The intelligent device for preventing the burning and short circuit of the overload contact for the drawer type power distribution cabinet according to claim 1, is characterized in that: and the two side surfaces of the sliding block (10) are fixedly connected to the two ends of the inner wall of the sliding groove (9) through springs.

5. The intelligent device for preventing the burning and short circuit of the overload contact for the drawer type power distribution cabinet according to claim 1, is characterized in that: the other end of the folding plate (13) is movably connected to the surface of the separating plate (15), and the other end of the limiting frame (16) is fixedly connected to the surface of the separating plate (15).

6. The intelligent device for preventing the burning and short circuit of the overload contact for the drawer type power distribution cabinet according to claim 1, is characterized in that: the other end of the elastic rod (14) is movably connected to one end of the separating plate (15), and one end of the separating plate (15) is movably connected to a gap where the static contact (2) and the moving contact (4) are connected.

7. The intelligent device for preventing the burning and short circuit of the overload contact for the drawer type power distribution cabinet according to claim 1, is characterized in that: the through holes are formed in the two ends of the heat dissipation bin (19), and the two ends of the heat dissipation bin (19) are movably connected with the surface of the spring (3) through the air guide tubes.

Technical Field

The invention relates to the technical field of distribution boards, in particular to an intelligent device for preventing burning, burning and short circuit of an overload contact for a drawer type power distribution cabinet.

Background

The distribution board is named as switch board again, is the equipment of concentrating, switching, distribution electric energy, plays and conveniently has a power failure, power transmission, plays the effect and the function of measurement, protection, and the effect that is favorable to the maintenance when circuit fault takes place can divide into the distribution board according to structural feature and usage: fixed panel type power distribution cabinets and closed power distribution cabinets.

The switch type switch cabinet consisting of the moving and static contacts needs to be checked frequently when in use, so that current overload is prevented, and when the current is overloaded, because the moving and static contacts are overheated, a static contact spring is easy to lose elasticity, the moving and static contacts are burnt, and even interphase arc short circuit is caused.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an intelligent device for preventing burning and short circuit of an overload contact for a drawer type power distribution cabinet, which has the advantages of automatically separating a moving contact and a fixed contact to prevent burning and assisting in protecting a static contact spring when the current is overlarge, and preventing the spring from losing elasticity, and solves the problems that the moving contact and the fixed contact are easy to burn and the static contact spring loses elasticity when the current is overloaded.

(II) technical scheme

In order to realize the purposes of automatically separating the moving contact and the static contact to prevent burning, and assisting to protect the static contact spring and prevent the spring from losing elasticity when the current is overlarge, the invention provides the following technical scheme: an intelligent device for preventing overload contact burning and short circuit for a drawer type power distribution cabinet comprises a drawer box, wherein the surface of the drawer box is movably connected with a static contact, the other end of the static contact is fixedly connected with a spring, the surface of the static contact is movably connected with a moving contact, the other end of the moving contact is fixedly connected with a lead, the surface of the lead is movably connected with a heat conducting wire, the other end of the heat conducting wire is fixedly connected with an expansion sheet, the surface of the expansion sheet is movably connected with a connecting rod, the surface of the connecting rod is fixedly connected with a chute, the surface of the chute is movably connected with a slide block, the side surface of the slide block is fixedly connected with the spring wire, the surface of the slide block is movably connected with a push rod, the other end of the push rod is movably connected with a folded plate, an inflection point of the folded, the surface of the T-shaped rod is movably connected with a fan, and the surface of the fan is movably connected with a heat dissipation bin.

Preferably, the number of the static contacts is two, the moving contact is movably connected between the two static contacts, and the other end of the spring is fixedly connected with the surface of the drawer box.

Preferably, the heat conducting wire is wound on the surface of the lead, and the expansion sheet absorbs heat and expands and deforms towards one end of the connecting rod.

Preferably, both sides face of the sliding block is fixedly connected to both ends of the inner wall of the sliding groove through springs.

Preferably, the other end of the folding plate is movably connected to the surface of the separating plate, and the other end of the limiting frame is fixedly connected to the surface of the separating plate.

Preferably, the other end of the elastic rod is movably connected to one end of the separating plate, and one end of the separating plate is movably connected to a gap where the fixed contact is connected with the movable contact.

Preferably, through holes are formed in two ends of the heat dissipation bin, and the two ends of the heat dissipation bin are movably connected with the surface of the spring through the air guide tubes.

(III) advantageous effects

Compared with the prior art, the invention provides an intelligent device for preventing burning, burning and short-circuiting of overload contacts for a drawer type power distribution cabinet, which has the following beneficial effects:

1. the intelligent device for preventing the overload contact from burning out and short circuit for the drawer type power distribution cabinet is characterized in that when the current passing through the lead is overloaded, the surface temperature of the lead is higher than a normal range, the heat conducting wire wound on the surface of the lead conducts heat to the expansion sheet, so that the expansion sheet absorbs heat and expands, the connecting rod is pushed outwards, the connecting rod and the sliding chute simultaneously move towards the upper outer side and the lower outer side to drive the sliding block to slide along the surface of the sliding chute, the spring wire buffers the motion process of the sliding block at the moment and provides subsequent power for resetting the sliding block, when the sliding chute moves towards the upper outer side and the lower outer side, the sliding block is driven to move outwards along the surface horizontal direction of the sliding chute, the push rod stretches outwards along the surface of the limiting frame to push the folded plate to rotate along the connection point of the separation plate, the inflection point of, one end of the separating plate rotates towards the inner side along the gap where the static contact and the moving contact are connected, and the moving contact and the static contact are separated by the extrusion effect on the surface of the moving contact when the separating plate rotates in a matched mode, so that the purpose that when the current is too large, the moving contact and the static contact are automatically separated and burnt is avoided.

2. This drawer type switch board is with intelligent device of overload protection contact burnt out short circuit, through the inflation of inflation piece when outside extrusion connecting rod, the other end of connecting rod drives the vertical outside removal of T shape pole for the fan rotates, makes the inside air flow in heat dissipation storehouse, and the air duct of the through-hole department of deuterogamying heat dissipation storehouse both ends is reciprocal to the spring and is blown off high-speed gas, with the heat effluvium on spring surface, thereby reaches the supplementary protection static contact spring, prevents that the spring from losing elastic purpose.

Drawings

FIG. 1 is a schematic view of a drawer box according to the present invention;

fig. 2 is a schematic view of a static contact structure according to the present invention;

FIG. 3 is a schematic structural diagram of a movable contact according to the present invention;

FIG. 4 is a schematic view of a T-bar configuration of the present invention;

FIG. 5 is a schematic view of a folded plate structure according to the present invention.

In the figure: 1. a drawer box; 2. static contact; 3. a spring; 4. a moving contact; 5. a wire; 6. heat conducting wires; 7. an intumescent sheet; 8. a connecting rod; 9. a chute; 10. a slider; 11. a spring wire; 12. a push rod; 13. a folded plate; 14. an elastic rod; 15. a separation plate; 16. a limiting frame; 17. a T-shaped rod; 18. a fan; 19. a heat dissipation bin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an intelligent device for preventing burning and short circuit of an overload contact for a drawer type power distribution cabinet includes a drawer box 1, a fixed contact 2 is movably connected to the surface of the drawer box 1, a spring 3 is fixedly connected to the other end of the fixed contact 2, a movable contact 4 is movably connected to the surface of the fixed contact 2, the number of the fixed contacts 2 is two, the movable contact 4 is movably connected between the two fixed contacts 2, and the other end of the spring 3 is fixedly connected to the surface of the drawer box 1.

The other end fixedly connected with wire 5 of moving contact 4, the surface swing joint of wire 5 has heat-conducting wire 6, the other end fixedly connected with inflation piece 7 of heat-conducting wire 6, the surface swing joint of inflation piece 7 has connecting rod 8, heat-conducting wire 6 twines on the surface of wire 5, inflation piece 7 heat absorption is to the one end inflation deformation of connecting rod 8, the fixed surface of connecting rod 8 is connected with spout 9, the surface swing joint of spout 9 has slider 10.

When the current passing through the lead 5 is overloaded, the surface temperature of the lead 5 is higher than the normal range, the heat conducting wire 6 wound on the surface of the lead 5 conducts heat to the expansion sheet 7, so that the expansion sheet 7 absorbs heat and expands, the connecting rod 8 is pushed outwards, the connecting rod 8 and the sliding groove 9 move towards the upper and lower outer sides simultaneously, the sliding block 10 is driven to slide along the surface of the sliding groove 9, the spring wire 11 buffers the motion process of the sliding block 10 at the moment and provides subsequent power for resetting the sliding block 10, when the sliding groove 9 moves towards the upper and lower outer sides, the sliding block 10 is driven to move outwards along the surface horizontal direction of the sliding groove 9, the push rod 12 extends outwards along the surface of the limiting frame 16, the folding plate 13 is driven to rotate along the connection point of the separating plate 15, the inflection point of the folding plate 13 drives the elastic rod 14 to press the separating plate 15 inwards, so that the separating plate 15 rotates along the midpoint of the separating plate, one end of the, when the separation plate 15 rotates, the surface of the movable contact 4 is squeezed, so that the movable contact 4 is separated from the fixed contact 2.

Extrude connecting rod 8 to the outside during through inflation piece 7 inflation, the other end of connecting rod 8 drives the vertical outside removal of T shape pole 17 for fan 18 rotates, makes the inside air flow in heat dissipation storehouse 19, and the air duct of the through-hole department of the cooperation heat dissipation storehouse 19 both ends again reciprocates to blow off high-speed gas to spring 3, looses the heat on spring 3 surface.

Both sides face of slider 10 all is at the both ends of spout 9 inner wall through spring fixed connection, the side fixedly connected with spring wire 11 of slider 10, the surperficial swing joint of slider 10 has push rod 12, the other end swing joint of push rod 12 has folded plate 13, the flex point department swing joint of folded plate 13 has elastic rod 14, the other end swing joint of elastic rod 14 has separator plate 15, the other end swing joint of elastic rod 14 is in the one end of separator plate 15, the one end swing joint of separator plate 15 is in the gap department that static contact 2 and moving contact 4 are connected.

The surface swing joint of push rod 12 has spacing 16, the other end swing joint of the folded plate 13 is on the surface of separation plate 15, the other end fixed connection of spacing 16 is on the surface of separation plate 15, the other end fixed connection of connecting rod 8 has T shape pole 17, the surface swing joint of T shape pole 17 has fan 18, the surface swing joint of fan 18 has heat dissipation storehouse 19, the through-hole has all been seted up at the both ends in heat dissipation storehouse 19, the surface swing joint of air duct and spring 3 is passed through at the both ends in heat dissipation storehouse 19.

The working principle is as follows: when the current passing through the lead 5 is overloaded, the surface temperature of the lead 5 is higher than the normal range, the heat conducting wire 6 wound on the surface of the lead 5 conducts heat to the expansion sheet 7, so that the expansion sheet 7 absorbs heat and expands, the connecting rod 8 is pushed outwards, the connecting rod 8 and the sliding groove 9 move towards the upper and lower outer sides simultaneously, the sliding block 10 is driven to slide along the surface of the sliding groove 9, the spring wire 11 buffers the motion process of the sliding block 10 at the moment and provides subsequent power for resetting the sliding block 10, when the sliding groove 9 moves towards the upper and lower outer sides, the sliding block 10 is driven to move outwards along the surface horizontal direction of the sliding groove 9, the push rod 12 extends outwards along the surface of the limiting frame 16, the folding plate 13 is driven to rotate along the connection point of the separating plate 15, the inflection point of the folding plate 13 drives the elastic rod 14 to press the separating plate 15 inwards, so that the separating plate 15 rotates along the midpoint of the separating plate, one end of the, when the separation plate 15 rotates, the surface of the movable contact 4 is squeezed, so that the movable contact 4 is separated from the fixed contact 2.

Extrude connecting rod 8 to the outside during through inflation piece 7 inflation, the other end of connecting rod 8 drives the vertical outside removal of T shape pole 17 for fan 18 rotates, makes the inside air flow in heat dissipation storehouse 19, and the air duct of the through-hole department of the cooperation heat dissipation storehouse 19 both ends again reciprocates to blow off high-speed gas to spring 3, looses the heat on spring 3 surface.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.