CN213815997U - Static contact for power electronic component - Google Patents

Abstract

The utility model discloses a static contact used by power electronic components, which comprises a shell, wherein electronic components are arranged in the shell; electronic component includes armature, reset spring, moves iron sheet, movable contact, stationary contact subassembly, mounting panel, iron core, encircles coil and wiring end, and reset spring is connected to the armature rear, and reset spring upper end is connected with moves iron sheet one end, moves the iron sheet and installs the movable contact, and the side of armature sets up the mounting panel, installs stationary contact subassembly on the mounting panel, sets up the iron core in the middle of the armature, and the winding cup joints around the coil on the iron core. The utility model discloses the static contact that power electronic component used prevents to appear not hard up after long-time and the movable contact, improves the stability in use and increases life, and the gusset plate is consolidated first stationary contact and second stationary contact, prevents to warp, increases the practicality, and oblique heat dissipation aluminum sheet increases heat radiating area, and aluminum sheet heat conduction is fast, and inside dispels the heat with higher speed, effectively improves the radiating effect, avoids high temperature to damage inside device.

Description

Static contact for power electronic component

Technical Field

The utility model relates to a power electronic component technical field specifically is a static contact that power electronic component used.

Background

The theory of operation of relay is that the electric current that flows into the thermal element by the electricity produces the heat, make the bimetallic strip that has different expansion coefficients take place deformation, when deformation reaches the certain distance, just promote the connecting rod action, make the control circuit disconnection, thereby make the contactor lose electricity, the main circuit disconnection, realize the overload protection of motor, current thermal element produces the heat when using, bimetallic strip radiating rate is slow, lead to the high temperature to influence the device and use, the inside stationary contact of relay, after long-time the use, the stationary contact installation department appears becoming flexible easily, lead to movable contact and the unable laminating of stationary contact, lead to breaking down, and the service life is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a static contact that power electronic component used prevents to appear not hard up after long-time and the movable contact, improves the stability in use and increases life, and the gusset plate is consolidated first stationary contact and second stationary contact, prevents to warp, increases the practicality, and the heat dissipation aluminum sheet increases heat radiating area, and the aluminum sheet heat conduction is fast, and inside dispels the heat with higher speed, effectively improves the radiating effect, avoids high temperature to damage inside device, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a static contact used by a power electronic component comprises a shell, wherein an electronic component is arranged in the shell;

the electronic element comprises an armature, a reset spring, a movable iron sheet, a movable contact, a static contact assembly, a support plate, an iron core, a surrounding coil and a wiring end, wherein the reset spring is connected behind the armature;

the static contact assembly comprises a first static contact, a second static contact, an extrusion spring part and a reinforcing plate, the second static contact is arranged below the first static contact, the first static contact and the second static contact are both installed on the support plate, the reinforcing plate is fixed on the plate surface of the first static contact and the second static contact, the extrusion spring part is installed between the two ends of the first static contact and the second static contact, and the heat dissipation assembly is arranged in the electronic element.

Preferably, one end of the moving iron sheet is provided with a hinge, and one end of the moving iron sheet is movably connected with the armature through the hinge.

Preferably, the rear end wiring board of the movable contact is mounted on the movable iron sheet through a fixing block, and the movable iron sheet drives the movable contact to be in contact connection with the fixed contact component.

Preferably, the first fixed contact and the second fixed contact are fixed at the upper end and the lower end of the movable contact, and the first fixed contact and the second fixed contact are in contact connection with the movable contact.

Preferably, the upper end and the lower end of the extrusion spring part are connected with the sleeve rings, and the upper end and the lower end of the extrusion spring part are connected with the first stationary contact and the second stationary contact through the sleeve rings.

Preferably, the radiating component comprises radiating holes, an inclined radiating aluminum sheet and a heat conducting plate, the radiating holes are formed in the armature and the support plate, and the inclined radiating aluminum sheet is arranged on the heat conducting plate.

Preferably, the heat-conducting plates are fixed at two side ends of the iron core, the heat-conducting plates are provided with two groups, and at least five groups of oblique heat-radiating aluminum sheets are arranged on the heat-conducting plates.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses the static contact that power electronic component used, first stationary contact and second stationary contact are connected with the movable contact, the equal adapter sleeve of lower extreme connects the ring on the extrusion spring part, the lower extreme connects on first stationary contact and second stationary contact face through cup jointing the ring cover on the extrusion spring part, the extrusion spring part extrudees between with first stationary contact and the second stationary contact, firmly fix on the mounting panel through two-way extrusion between first stationary contact and the second stationary contact, it is not hard up to appear after preventing for a long time and the movable contact, improve the stability in use and increase life, the gusset plate consolidates first stationary contact and second stationary contact, prevent to warp, increase the practicality.

2. The utility model discloses the static contact that power electronic component used, the louvre is seted up on armature and mounting panel, and the heat dissipation aluminum sheet that appears to one side sets up on the heat-conducting plate, and the heat-conducting plate is fixed at the iron core both sides end, and the heat-conducting plate sets up two sets ofly, and five groups's oblique heat dissipation aluminum sheets are no less than in the installation on the heat-conducting plate, and oblique heat dissipation aluminum sheet increases heat radiating area, and aluminum sheet heat conduction is fast, dispels the heat with higher speed inside, effectively improves the radiating effect, avoids high temperature to damage inside device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view of the point A of FIG. 2 according to the present invention;

fig. 4 is a schematic structural view of the stationary contact assembly of the present invention;

fig. 5 is a schematic structural view of the heat dissipation assembly of the present invention.

In the figure: 1. a housing; 2. an electronic component; 21. an armature; 22. a return spring; 23. a moving iron sheet; 231. a hinge; 24. a movable contact; 241. a fixed block; 25. a stationary contact assembly; 251. a first stationary contact; 252. a second stationary contact; 253. compressing the spring element; 254. a reinforcing plate; 26. a mounting plate; 27. an iron core; 28. a surrounding coil; 29. a terminal; 3. a heat dissipating component; 31. heat dissipation holes; 32. oblique radiating aluminum sheets; 33. a heat conducting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a static contact for power electronic components includes a housing 1, an electronic component 2 is disposed inside the housing 1, the electronic component 2 includes an armature 21, a return spring 22, a moving iron piece 23, a moving contact 24, a static contact assembly 25, a support plate 26, an iron core 27, a surrounding coil 28 and a terminal 29, the return spring 22 is connected to the rear of the armature 21, the upper end of the return spring 22 is connected to one end of the moving iron piece 23, the moving contact 24 is mounted on the moving iron piece 23, the support plate 26 is disposed at the side end of the armature 21, the static contact assembly 25 is mounted on the support plate 26, the iron core 27 is disposed in the middle of the armature 21, the surrounding coil 28 is wound on the iron core 27, the terminal 29 is connected to both ends below the surrounding coil 28, the static contact assembly 25 includes a first static contact 251, a second static contact 252, an extruding spring 253 and a reinforcing plate 254, the second static contact 252 is disposed below the first static contact 251, the first fixed contact 251 and the second fixed contact 252 are both arranged on the support plate 26, a reinforcing plate 254 is fixed on the plate surfaces of the first fixed contact 251 and the second fixed contact 252, an extrusion spring piece 253 is arranged between the two ends of the first fixed contact 251 and the second fixed contact 252, one end of the moving iron piece 23 is provided with a hinge 231, one end of the moving iron piece 23 is movably connected with the armature 21 through the hinge 231, a wiring board at the rear end of the moving contact 24 is arranged on the moving iron piece 23 through a fixing block 241, the moving iron piece 23 drives the moving contact 24 to be in contact connection with the fixed contact assembly 25, the first fixed contact 251 and the second fixed contact 252 are fixed on the upper end and the lower end of the moving contact 24, the first fixed contact 251 and the second fixed contact 252 are in contact connection with the moving contact 24, the upper end and the lower end of the extrusion spring piece 253 are both connected with a connecting ring through the connecting ring, the upper end and the lower end of the extrusion spring piece 253 are connected on the plate surfaces of the first fixed contact 251 and the second fixed contact 252 through the connecting ring, the extrusion spring piece 253 extrudes the first fixed contact 251 and the second fixed contact 252, first stationary contact 251 and second stationary contact 252 are firmly fixed on mounting plate 26 through two-way extrusion between, and it is not hard up to prevent to appear after long-time and movable contact 24 contact, improves stability in use and increase life, and gusset plate 254 consolidates first stationary contact 251 and second stationary contact 252, prevents to warp, increases the practicality.

Referring to fig. 5, a heat dissipation assembly 3 is disposed in an electronic component 2, the heat dissipation assembly 3 includes heat dissipation holes 31, oblique heat dissipation aluminum sheets 32 and heat conduction plates 33, the heat dissipation holes 31 are disposed on an armature 21 and a support plate 26, the oblique heat dissipation aluminum sheets 32 are disposed on the heat conduction plates 33, the heat conduction plates 33 are fixed at two sides of an iron core 27, the heat conduction plates 33 are disposed in two sets, at least five sets of oblique heat dissipation aluminum sheets 32 are mounted on the heat conduction plates 33, the oblique heat dissipation aluminum sheets 32 increase the heat dissipation area, the heat conduction of the aluminum sheets is fast, heat dissipation inside the electronic component is accelerated, the heat dissipation effect is effectively improved, and internal devices are prevented from being damaged by high temperature.

In summary, the following steps: the utility model discloses the static contact that power electronic component used, first stationary contact 251 and second stationary contact 252 contact with movable contact 24 and connect, the equal adapter ring of upper and lower end of extrusion spring part 253, the upper and lower end of extrusion spring part 253 connects on first stationary contact 251 and second stationary contact 252 face through the adapter ring cup, extrusion spring part 253 extrudes between first stationary contact 251 and the second stationary contact 252, firmly fix on mounting panel 26 through two-way extrusion between first stationary contact 251 and the second stationary contact 252, prevent to appear becoming flexible after long-time contact with movable contact 24, improve stability in use and increase life, gusset plate 254 consolidates first stationary contact 251 and second stationary contact 252, prevent to warp, increase the practicality, louvre 31 is seted up on armature 21 and mounting panel 26, oblique shape heat dissipation 32 sets up on heat-conducting plate 33, heat-conducting plate 33 fixes at two side aluminum sheets of iron core 27, the heat-conducting plate 33 sets up two sets ofly, and five oblique shape heat dissipation aluminum sheets 32 of group are no less than in the installation on the heat-conducting plate 33, and oblique shape heat dissipation aluminum sheet 32 increases heat radiating area, and the aluminum sheet heat conduction is fast, dispels the heat with higher speed inside, effectively improves the radiating effect, avoids high temperature to damage inside device.

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.

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.

Claims (7)

1. A static contact used by power electronic components comprises a shell (1), and is characterized in that: an electronic component (2) is arranged in the shell (1);

the electronic element (2) comprises an armature (21), a reset spring (22), a moving iron sheet (23), a moving contact (24), a static contact component (25), a support plate (26), an iron core (27), a surrounding coil (28) and a terminal (29), wherein the reset spring (22) is connected to the rear of the armature (21), the upper end of the reset spring (22) is connected with one end of the moving iron sheet (23), the moving contact (24) is installed on the moving iron sheet (23), the support plate (26) is arranged at the side end of the armature (21), the static contact component (25) is installed on the support plate (26), the iron core (27) is arranged in the middle of the armature (21), the surrounding coil (28) is wound and sleeved on the iron core (27), and the terminals (29) are connected to two ends below the surrounding coil (28);

the fixed contact assembly (25) comprises a first fixed contact (251), a second fixed contact (252), an extrusion spring part (253) and a reinforcing plate (254), the second fixed contact (252) is arranged below the first fixed contact (251), the first fixed contact (251) and the second fixed contact (252) are both installed on the support plate (26), the reinforcing plate (254) is fixed on the plate surfaces of the first fixed contact (251) and the second fixed contact (252), the extrusion spring part (253) is installed between two end heads of the first fixed contact (251) and the second fixed contact (252), and the heat dissipation assembly (3) is arranged in the electronic element (2).

2. A static contact for a power electronic component according to claim 1, wherein: one end of the moving iron sheet (23) is provided with a hinge (231), and one end of the moving iron sheet (23) is movably connected with the armature iron (21) through the hinge (231).

3. A static contact for a power electronic component according to claim 1, wherein: the rear end wiring board of the movable contact (24) is arranged on the movable iron sheet (23) through the fixing block (241), and the movable iron sheet (23) drives the movable contact (24) to be in point contact connection with the static contact component (25).

4. A static contact for a power electronic component according to claim 1, wherein: the first fixed contact (251) and the second fixed contact (252) are fixed on the upper end and the lower end of the movable contact (24), and the first fixed contact (251) and the second fixed contact (252) are in contact connection with the movable contact (24).

5. A static contact for a power electronic component according to claim 4, wherein: the upper end and the lower end of the extrusion spring part (253) are connected with the connecting rings in a connecting mode, and the upper end and the lower end of the extrusion spring part (253) are connected with the surfaces of the first static contact (251) and the second static contact (252) in a connecting mode through the connecting rings in a connecting mode.

6. A static contact for a power electronic component according to claim 1, wherein: the radiating component (3) comprises radiating holes (31), inclined radiating aluminum sheets (32) and a heat conducting plate (33), the radiating holes (31) are formed in the armature (21) and the support plate (26), and the inclined radiating aluminum sheets (32) are arranged on the heat conducting plate (33).

7. The static contact for power electronic components as claimed in claim 6, wherein: the heat-conducting plate (33) is fixed at two side ends of the iron core (27), the heat-conducting plate (33) is provided with two groups, and at least five groups of oblique heat-radiating aluminum sheets (32) are arranged on the heat-conducting plate (33).

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