Integrated accessory module convenient to refit

Abstract

The utility model discloses an integrated accessory module convenient to refit, which comprises a shell, a shunt tripping unit, a first auxiliary microswitch and an alarm microswitch, the shunt tripping unit, the first auxiliary microswitch and the alarm microswitch are mounted in the shell, and the shunt tripping unit triggers the first auxiliary microswitch and performs shunt tripping after receiving a power signal. The bottom end of the shell is provided with an open mounting cavity, and the first auxiliary microswitch and the alarm microswitch are arranged in the mounting cavity. According to the utility model, a plurality of accessories are integrated, the structure is compact, the hollow structure is adopted at the bottom end of the shell, and the auxiliary microswitch and the alarm microswitch can be directly mounted in the mounting cavity from the lower part under the condition that the mounting plate seals and covers the accommodating space in the shell, namely, the disassembly and assembly of the auxiliary microswitch and the alarm microswitch are realized through the hollow structure; a cover plate of the shell does not need to be disassembled, disassembly and assembly are easy and convenient, modification is convenient, disassembly and assembly time can be shortened, disassembly and assembly efficiency can be improved, and the damage probability can be reduced.

Description

Technical Field

[0001] This utility model relates to an integrated accessory module, and more particularly to an integrated accessory module that is easy to modify. Background Technology

[0002] Existing integrated accessory modules for low-voltage intelligent switches in power distribution IoT include a housing, a shunt trip unit, an auxiliary micro switch, and an alarm micro switch. Since the auxiliary micro switch and the alarm micro switch are both installed inside the housing, and the shunt trip unit is connected to the mounting plate by thin wire welding, the thin wire is prone to breakage when disassembling the auxiliary micro switch and the alarm micro switch. Furthermore, because the connection between the cover plate and the housing body is a snap-fit ​​structure, the snap-fit ​​is also prone to breakage when opening the cover plate for disassembly. Therefore, the auxiliary micro switch and alarm micro switch of the existing integrated accessory module are relatively troublesome to install and disassemble, and are easily damaged. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated accessory module that is simple and compact in structure, low in cost, easy to disassemble and assemble with auxiliary microswitches and alarm microswitches, improves disassembly and assembly efficiency, and is not prone to damage.

[0004] The purpose of this utility model is achieved through the following technical measures: an integrated accessory module that is easy to modify, including a housing, a shunt trip unit installed in the housing, a first auxiliary micro switch and an alarm micro switch, wherein the shunt trip unit triggers the first auxiliary micro switch and performs shunt trip after receiving a power signal, characterized in that the bottom end of the housing has an open mounting cavity, and the first auxiliary micro switch and the alarm micro switch are disposed in the mounting cavity.

[0005] This utility model integrates multiple accessories, has a compact structure, and adopts a hollow structure (i.e., an open mounting cavity) at the bottom of the outer shell. With the mounting plate covering the internal space of the outer shell, the auxiliary micro switch and the alarm micro switch can be directly installed into the mounting cavity from below. That is, the hollow structure enables the installation and removal of the auxiliary micro switch and the alarm micro switch without removing the cover plate of the outer shell. The installation and removal are relatively simple, which facilitates modification, reduces installation and removal time, improves installation and removal efficiency, and reduces the probability of damage.

[0006] The shunt trip unit of this utility model includes a tripping mechanism, a lever having a raised state and a pressed state, a push rod having a limited state and an active state, and a reset spring for resetting the lever and push rod after tripping. The lever, push rod, and reset spring are all mounted on the tripping mechanism. When the lever is pressed down, the contact of the first auxiliary micro switch can be pressed down by the lever, and the push rod is pressed down and is in a limited state. Alternatively, when the lever is raised, the contact can be released from the lever, and the push rod can move freely. After receiving a power signal, the tripping mechanism pushes out the push rod to achieve tripping.

[0007] The outer casing of this utility model includes a casing body and a mounting plate covering the opening at the upper end of the casing body. A second auxiliary micro switch is provided on the lower surface of the mounting plate, which can be triggered by the shunt trip unit at the same time as the first auxiliary micro switch.

[0008] The shunt trip unit of this utility model includes a protective micro switch for cutting off the power signal to protect the trip mechanism. The protective micro switch is installed on the lower surface of the mounting plate. When the lever is in the pressed state, the contact of the protective micro switch is pressed down by the lever.

[0009] The lever of this invention rotates along a vertical plane. A first protrusion is provided on the upper part of the lever and above the hinge point, and a second protrusion is provided at the upper end of the lever. When the lever is in a downward state, the first protrusion presses down the contact of the first auxiliary micro switch, and at the same time, the second protrusion presses down the contact of the second auxiliary micro switch and the contact of the protective micro switch.

[0010] Compared with the prior art, the present invention has the following significant advantages:

[0011] (1) This utility model adopts a hollow structure (i.e., an open mounting cavity) at the bottom of the outer shell. With the mounting plate covering the internal space of the outer shell, the auxiliary micro switch and the alarm micro switch can be directly installed into the mounting cavity from below. That is, the hollow structure enables the installation and removal of the auxiliary micro switch and the alarm micro switch without removing the cover plate of the outer shell. The installation and removal are relatively simple, easy to modify, can reduce the installation and removal time, improve the installation and removal efficiency, and reduce the probability of damage.

[0012] (2) Because the outer shell, auxiliary micro switch, alarm micro switch, shunt trip unit and other accessories of this utility model are all integrated into the integrated accessory module, and the auxiliary micro switch and alarm micro switch are installed in the mounting cavity with an open bottom of the outer shell, the integrated accessory module has a high degree of integration and a relatively compact structure.

[0013] (3) This utility model has a simple structure, low cost, and strong practicality, and is suitable for widespread promotion and use. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is an exploded view of part of the structure of this utility model;

[0018] Figure 4 This is one of the structural schematic diagrams of the shunt trip unit and the micro switch of this utility model;

[0019] Figure 5 This is the second schematic diagram of the structure of the shunt trip unit and the micro switch of this utility model.

[0020] In the diagram: 1-outer shell, 11-mounting plate, 111-first mounting position, 112-second mounting position, 12-shell body, 121-accommodating space, 2a-first auxiliary micro switch, 2b-second auxiliary micro switch, 3-alarm micro switch, 4-shunt trip unit, 41-tripping mechanism, 42-lever, 421a-first protrusion, 421b-second protrusion, 43-push rod, 44-reset spring, 45-protection micro switch, 5-hinge point. Detailed Implementation

[0021] 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.

[0022] like Figures 1-5As shown, this utility model discloses an integrated accessory module that is easy to modify. It includes a housing 1, a shunt trip unit 4 installed inside the housing 1, a first auxiliary micro switch 2a, a second auxiliary micro switch 2b, and an alarm micro switch 3 (the actuating device for linking the alarm micro switch is not shown in the figure). The contacts of the first auxiliary micro switch 2a and the second auxiliary micro switch 2b are both located in the active position of the shunt trip unit 4 and can be triggered by the shunt trip unit 4. The shunt trip unit 4 performs shunt tripping after receiving a power signal. The bottom of the housing 1 has an open mounting cavity. The first auxiliary micro switch 2a and the alarm micro switch 3 are set in the mounting cavity. That is, the first auxiliary micro switch 2a is installed in the first mounting position 111, and the alarm micro switch 3 is installed in the second mounting position 112. Therefore, the first auxiliary micro switch 2a and the alarm micro switch 3 can be directly disassembled and installed from the bottom of the housing 1, which is relatively simple and not easy to cause damage.

[0023] The housing 1 includes a housing body 12 and a mounting plate 11 covering the opening at the upper end of the housing body 12. A second auxiliary micro switch 2b is mounted on the lower surface of the mounting plate 11. The second auxiliary micro switch 2b can be triggered simultaneously by the shunt trip unit along with the first auxiliary micro switch 2a. The interior of the housing body 12 is a receiving space 121, which is covered by the mounting plate 11. The shunt trip unit 4 is located within the receiving space 121.

[0024] The shunt trip unit 4 includes a tripping mechanism 41, a protective microswitch 45 for cutting off the power signal to protect the tripping mechanism 41, a lever 42 having a raised state and a depressed state, a push rod 43 having a limited state and an active state, and a return spring 44 for resetting the lever 42 and push rod 43 after tripping. The tripping mechanism 41 has a position for mounting the lever 42 and push rod 43. The return spring 44 is mounted on the tripping mechanism 41. The protective microswitch 45 is mounted on the lower surface of the mounting plate 11. The contacts of the first auxiliary microswitch 2a... When the lever 42 is pressed down, the contacts of the second auxiliary micro switch 2b and the protective micro switch 45 can be pressed down by the lever 42, and the push rod 43 is pressed down and is in a limited state (at this time, the push rod 43 cannot move). Alternatively, when the lever 42 is lifted, the push rod 43 can move freely (in this way, the lever 42 can not only limit the movement of the push rod 43 to prevent accidental contact, but also control the triggering state of the contacts of the two auxiliary micro switches through different states). After receiving the power signal, the tripping mechanism 41 pushes out the push rod 43 to achieve the tripping.

[0025] The lever 42 is rotatable along a vertical plane (hinge point 5). A first protrusion 421a is located on the upper part of the lever 42 above the hinge point 5, and a second protrusion 421b is located at the upper end of the lever 42. When the lever 42 is in a depressed state, the first protrusion 421a presses down the contact of the first auxiliary microswitch 2a, while the second protrusion 421b presses down the contact of the second auxiliary microswitch 2b and the contact of the protective microswitch 45. The first protrusion 421a and the second protrusion 421b of the lever 42 can simultaneously trigger the contacts of the two auxiliary microswitches and the protective microswitch, controlling the triggering state of the contacts of the auxiliary and protective microswitches.

[0026] A return spring 44 is mounted on the tripping mechanism 4 and presses against the lever 42. When the lever 42 is in the raised state, after the push rod 43 is pushed out, the return spring 44 will press against the lever 42, and the lever 42 will then press against the push rod 43, causing the push rod 43 to return to its original position. When the lever 42 is in the raised state, after the tripping mechanism 41 receives a power signal, the push rod 43 will be pushed out, realizing the tripping of the circuit breaker.

[0027] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. An easily retrofittable integrated accessory module, comprising a housing, a shunt trip unit installed within the housing, a first auxiliary micro switch, and an alarm micro switch, wherein the shunt trip unit triggers the first auxiliary micro switch and performs shunt tripping upon receiving a power signal, characterized in that: The bottom of the housing has an open mounting cavity, in which the first auxiliary micro switch and the alarm micro switch are disposed.

2. The easily retrofittable integrated accessory module according to claim 1, characterized in that: The shunt trip unit includes a tripping mechanism, a lever having a raised state and a pressed state, a push rod having a limited state and an active state, and a reset spring for resetting the lever and push rod after tripping. The lever, push rod, and reset spring are all mounted on the tripping mechanism. When the lever is pressed down, the contact of the first auxiliary micro switch can be pressed down by the lever while the push rod is pressed down and is in a limited state, or when the lever is raised, it can disengage from the lever while the push rod can move freely. After receiving a power signal, the tripping mechanism pushes out the push rod to achieve tripping.

3. The easily retrofittable integrated accessory module according to claim 2, characterized in that: The housing includes a housing body and a mounting plate covering the opening at the upper end of the housing body. A second auxiliary micro switch is provided on the lower surface of the mounting plate, which can be triggered by the shunt trip unit at the same time as the first auxiliary micro switch.

4. The easily retrofittable integrated accessory module according to claim 3, characterized in that: The shunt trip unit includes a protective micro switch for cutting off the power signal to protect the trip mechanism. The protective micro switch is mounted on the lower surface of the mounting plate, and the contacts of the protective micro switch are pressed down by the lever when the lever is in the depressed state.

5. The easily retrofittable integrated accessory module according to claim 4, characterized in that: The lever rotates along a vertical plane. A first protrusion is provided on the upper part of the lever and above the hinge point, and a second protrusion is provided at the upper end of the lever. When the lever is in a depressed state, the first protrusion presses down the contact of the first auxiliary micro switch, and at the same time, the second protrusion presses down the contact of the second auxiliary micro switch and the contact of the protective micro switch.

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