Large-current-carrying high-power relay

Abstract

The utility model relates to the technical field of relays, and discloses a large-current-carrying high-power relay, which comprises a shell and further comprises a base arranged in the shell; the framework is arranged in the shell, a yoke is fixedly installed in the framework, and magnetic steel is symmetrically arranged in the framework; and the iron core is arranged in the framework, a push piece is fixedly installed at the bottom of the iron core, and a movable piece is installed in the push piece. According to the utility model, through the arrangement of the auxiliary contact assembly, the on-off state of the contacts between the main contact assemblies can be effectively monitored, through the arrangement of the heat dissipation assembly, the temperature between the contacts can be effectively reduced, so that the service life of the contacts and the whole relay can be effectively prolonged, and in addition, the service life of the relay is prolonged. The device has high power and large current-carrying capacity, can deal with a high-current-carrying charging scene, and effectively improves the overall practicability of the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay technology field, concretely relates to a big current carrying big power relay. BACKGROUND

[0002] Relay as the switching element of main circuit, can bear greater current and voltage, ensure when electric automobile connects to the charging pile in the charging process, can stably switch on power and start charging, after charging, can reliably cut off power and stop charging, in daily life, need to use a kind of big current carrying big power relay.

[0003] The existing relay has high failure coefficient in the use process of charging pile, and the instantaneous current delivered by the charging pile is too large, which can cause the relay to burn out, and the current carrying capacity is low, which is insufficient to cope with the high current charging scene.

[0004] Therefore, the skilled in the art provides a kind of big current carrying big power relay to solve the problems raised in the above background art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of big current carrying big power relay, including shell, still including:

[0006] Base, be set up in the inside of the shell;

[0007] Framework, be set up in the inside of the shell, the inside fixed mounting of yoke iron of the framework, the inside symmetry of the framework is equipped with magnetic steel;

[0008] Iron core, be set up in the inside of the framework, the bottom fixed mounting of the iron core has push piece, the inside installation of the push piece has moving piece;

[0009] Static sheet, symmetry is set up in the inside of the shell;

[0010] Auxiliary contact point assembly, be set up in the inside of the shell;

[0011] Main contact point assembly, respectively in the inside of the moving piece and static sheet;

[0012] Heat dissipation assembly, symmetry is set up in the inside of the shell.

[0013] As the further improvement of the technical scheme, the main contact point assembly includes moving contact and static contact respectively arranged in the inside of the moving piece and the static sheet.

[0014] As the further improvement of the technical scheme, the heat dissipation assembly includes heat absorption plate symmetrically arranged in the inside of the shell.

[0015] As a further improvement to this technical solution, the bottom of the moving plate is symmetrically provided with overtravel springs, and the other ends of the two overtravel springs are fixedly connected to the inside of the push plate.

[0016] As a further improvement to this technical solution, a return spring is sleeved on the outside of the iron core, and the return spring abuts against the iron core and the yoke.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In this high-current-carrying, high-power relay, the auxiliary contact assembly and heat dissipation assembly effectively monitor the opening and closing of contacts between the main contact assembly, thereby effectively monitoring the overall operating status of the relay. The heat dissipation assembly effectively reduces the temperature between the contacts, thus extending the life of the contacts and consequently the overall lifespan of the relay. Furthermore, this device has modular replacement capabilities, allowing for both magnetic and non-magnetic latching by changing the frame structure. This facilitates replacement while accommodating different pin positions. The device achieves a 6mm electrical clearance between contacts and an 8mm electrical clearance between coil contacts. It also boasts high current-carrying and high-power capabilities. Compared to relays of the same specifications, this device has a smaller circuit board area, effectively improving its overall practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the outer shell and base after disassembly in this utility model;

[0022] Figure 4 for Figure 3 A magnified structural diagram of region A in the middle.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Outer shell; 2. Frame; 3. Yoke; 4. Magnet; 5. Base; 6. Heat absorber plate; 7. Auxiliary contact assembly; 8. Iron core; 9. Return spring; 10. Push plate; 11. Moving plate; 12. Moving contact; 13. Stationary plate; 14. Stationary contact; 15. Overtravel spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 4 As shown, this embodiment provides a high current-carrying, high-power relay, including a housing 1, and further comprising:

[0027] Base 5 is located inside the outer casing 1;

[0028] The frame 2 is located inside the outer shell 1. A yoke 3 is fixedly installed inside the frame 2, and magnets 4 are symmetrically arranged inside the frame 2.

[0029] The iron core 8 is set inside the frame 2. A push plate 10 is fixedly installed at the bottom of the iron core 8, and a moving plate 11 is installed inside the push plate 10.

[0030] Static plates 13 are symmetrically arranged inside the outer casing 1;

[0031] Auxiliary contact assembly 7 is disposed inside housing 1;

[0032] The main contact assemblies are respectively located inside the moving piece 11 and the stationary piece 13;

[0033] The heat dissipation components are symmetrically arranged inside the housing 1.

[0034] The working principle described above is as follows: The auxiliary contact assembly 7 can effectively monitor the opening and closing of contacts between the main contact assemblies, thereby effectively monitoring the overall operating status of the relay. The heat dissipation assembly effectively reduces the temperature between the contacts, thus extending the lifespan of the contacts and consequently the overall lifespan of the relay. Furthermore, this device has modular replacement capabilities; magnetic and non-magnetic holding capabilities can be achieved by changing the structure of the frame 2, facilitating easy replacement while adapting to different pin positions. Moreover, this device achieves a 6mm electrical clearance between contacts and an 8mm electrical clearance between coil contacts. It also possesses high current carrying capacity and high power capability. Compared to relays of the same specifications, this device has a smaller circuit board area, effectively improving the overall practicality of the device.

[0035] In order for the relay to operate normally as a whole, the main contact assembly includes a moving contact 12 disposed inside the moving piece 11 and a stationary contact 14 disposed inside the stationary piece 13. The arrangement of the moving contact 12 and the stationary contact 14 enables the relay to operate normally as a whole.

[0036] Considering that high temperatures will be generated between the contacts during the overall operation of the relay, the heat dissipation component includes heat-absorbing plates 6 symmetrically arranged inside the housing 1. By setting the heat-absorbing plates 6, the temperature between the contacts can be effectively reduced, thereby effectively extending the service life of the contacts and thus effectively extending the overall service life of the relay.

[0037] To further improve the closing effect between the moving contact 12 and the stationary contact 14, overtravel springs 15 are symmetrically provided at the bottom of the moving plate 11. The other ends of the two overtravel springs 15 are fixedly connected to the inside of the push plate 10. By setting the overtravel springs 15, the closing between the moving contact 12 and the stationary contact 14 can be made tighter, increasing the pressure between the contacts, reducing the contact resistance, reducing heat generation, and effectively improving the overall lifespan of the relay.

[0038] In order for the iron core 8 to drive the push plate 10 and the moving plate 11 to perform the reset process, a reset spring 9 is sleeved on the outside of the iron core 8. The reset spring 9 abuts between the iron core 8 and the yoke 3. When the iron core 8 moves upward, it will squeeze the reset spring 9. When the iron core 8 moves downward, the reset spring 9 will reset, driving the iron core 8 and the push plate 10 to move synchronously. At this time, the iron core 8, the push plate 10 and the moving plate 11 can be reset and moved, so that the relay can be used normally.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-current-carrying, high-power relay, comprising a housing (1), characterized in that, Also includes: The base (5) is disposed inside the outer casing (1); A frame (2) is disposed inside the outer shell (1), and a yoke (3) is fixedly installed inside the frame (2). Magnets (4) are symmetrically arranged inside the frame (2). An iron core (8) is disposed inside the frame (2). A push plate (10) is fixedly installed at the bottom of the iron core (8). A moving plate (11) is installed inside the push plate (10). Static plates (13) are symmetrically arranged inside the outer casing (1); An auxiliary contact assembly (7) is disposed inside the housing (1); The main contact assemblies are respectively disposed inside the moving piece (11) and the stationary piece (13); The heat dissipation components are symmetrically arranged inside the outer casing (1).

2. A high-current-carrying, high-power relay according to claim 1, characterized in that: The main contact assembly includes a moving contact (12) disposed inside the moving plate (11) and a stationary contact (14) disposed inside the stationary plate (13).

3. A high-current-carrying, high-power relay according to claim 1, characterized in that: The heat dissipation assembly includes heat-absorbing plates (6) symmetrically arranged inside the outer casing (1).

4. A high-current-carrying, high-power relay according to claim 1, characterized in that: The bottom of the moving plate (11) is symmetrically provided with overtravel springs (15), and the other ends of the two overtravel springs (15) are fixedly connected to the inside of the push plate (10).

5. A high-current-carrying, high-power relay according to claim 1, characterized in that: A return spring (9) is sleeved on the outside of the iron core (8), and the return spring (9) abuts against the iron core (8) and the yoke (3).

Images