Surge backup protector with remote signaling function

Abstract

The utility model discloses a surge back-up protector with a remote signaling function, which comprises an arc extinguish chamber and further comprises a surge back-up protector body, a surge back-up protector main body, a surge back-up protector main body and a surge back-up protector main body, the microswitch is arranged at an arc extinguishing inlet of the arc extinguishing chamber; the static contact frame is arranged on the opposite surface of the microswitch, and the static contact frame is provided with an arc striking part and is arranged below the inlet of the arc extinguish chamber; the movable contact frame is arranged between the microswitches and the static contact frame and abuts against any one of the microswitches or the static contact frame; and the electromagnetic release is arranged above the arc extinguish chamber. According to the utility model, the microswitch is arranged at the inlet of the arc extinguish chamber, the distance between the microswitch and the static contact frame is reduced, and the microswitch is located in the moving range of the moving contact frame, so that the space utilization rate in the shell is improved, sufficient space is provided for installing the arc extinguish chamber in the shell, and convenience is provided for assembly of other parts; therefore, the product has the advantages of reducing the manufacturing cost and improving the assembly efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of backup protectors, in particular to a surge backup protector with a remote signaling function. Background Art

[0002] The backup protector is a protection device used to cut off the fault when the main protection or circuit breaker fails to operate. When a circuit fails, the protection on the circuit will instantly send a signal to disconnect the circuit's breaking element (such as a circuit breaker). This immediately acting protection is the main protection. When the main protection fails to operate for various reasons, after a short delay (the delay time depends on the requirements of each circuit), another protection will start and operate to trip the fault circuit. This protection is the backup protection.

[0003] According to the utility model authorization announcement number "CN215834429U", "a backup protector with remote signaling function" includes a housing, an operating mechanism, a contact system, and an arc extinguishing chamber. The contact system includes a moving contact that cooperates with the operating mechanism and a static contact that cooperates with the moving contact. A push rod is movably arranged at the corresponding moving contact in the housing. One end of the push rod abuts against the moving contact and forms a linkage cooperation between the push rod and the moving contact. A micro switch is arranged at the other end of the corresponding push rod in the housing. The push rod moves with the moving contact and can trigger the micro switch, which can realize the connection or disconnection of the micro switch. A signal terminal is arranged on the housing, and a wire is connected between the signal terminal and the micro switch. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly, and remote signaling function.

[0004] The above technical solution has the following defects; since the above technical solution needs to push the top rod and trigger the micro switch through the moving contact, in order to provide a guiding effect for the top rod, the bottom shell and the upper shell are respectively provided with an arc-shaped slide groove, which will increase the design modification amount of the bottom shell and the upper shell, increase the production cost, and also compress the volume of the arc extinguishing chamber, which will reduce the arc extinguishing ability of the arc extinguishing chamber. The above technical solution makes the components in the backup protector more compact, which is not conducive to assembly. Therefore, the applicant has made a beneficial design and found a solution to the above problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0005] The purpose of the utility model is to overcome the shortcomings of the above technical solutions and provide a product with reduced manufacturing costs and improved assembly efficiency.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A surge backup protector with a remote signaling function comprises an arc extinguishing chamber, and also comprises: a micro switch arranged at the arc extinguishing entrance of the arc extinguishing chamber; a static contact frame arranged on the opposite side of the micro switch, the static contact frame is provided with an arc striking portion, and is arranged below the entrance of the arc extinguishing chamber; a moving contact frame arranged between the micro switch and the static contact frame, and abuts against any one of the micro switch or the static contact frame; an electromagnetic release arranged above the arc extinguishing chamber, and the electromagnetic release is electrically connected to the moving contact frame through a flexible connecting line.

[0008] Preferably, it comprises a shell, with a first terminal and a second terminal at both ends of the shell, the first terminal being electrically connected to the other end of the electromagnetic release, the second terminal being electrically connected to a stationary contact frame, and the stationary contact frame being provided with a stationary contact.

[0009] Preferably, a signal terminal is provided in the housing and is electrically connected to the lead-out end of the micro switch, and the signal terminal is arranged below the second wiring terminal.

[0010] Preferably, an operating mechanism is provided in the shell, the movable contact frame is linked to the operating mechanism, the movable contact frame is provided with a resisting portion, and a movable contact is provided on the back of the resisting portion.

[0011] Preferably, the housing is provided with a limit portion, and is arranged above the micro switch to limit the swing angle of the moving contact frame. The housing is also provided with a supporting portion, and is arranged between the electromagnetic release and the arc extinguishing chamber.

[0012] Beneficial effects:

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model improves the space utilization rate in the shell by arranging the micro switch at the entrance of the arc extinguishing chamber, reducing the distance between the micro switch and the static contact frame, and placing it within the movable range of the moving contact frame, so that there is sufficient space in the shell to install the arc extinguishing chamber and provide convenience for the assembly of other components, thereby improving the arc extinguishing ability of the arc extinguishing chamber, and guiding the arc at the moment of separation of the moving contact frame and the static contact frame to the arc extinguishing chamber through the arc striking part, so as to achieve the arc extinguishing effect. Through the above-mentioned structural design and optimization of the interior of the shell, there is no need for the top rod required by the technical solution in the background technology. While achieving the same effect and function, this product also has the advantages of reducing manufacturing costs and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a surge backup protector with remote signaling function when it is closed;

[0016] Figure 2It is a schematic structural diagram of a surge backup protector with remote signaling function in the utility model when it is opened;

[0017] Figure 3 It is a schematic diagram of the side cross-section structure of a surge backup protector with remote signaling function of the utility model;

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] Figure numerals: 1. arc extinguishing chamber; 2. micro switch; 3. static contact frame; 4. moving contact frame; 5. electromagnetic release; 6. housing; 7. operating mechanism; 8. flexible connecting wire; 31. arc striking part; 32. static contact; 41. resistance part; 42. moving contact; 61. first terminal; 62. second terminal; 63. signal terminal; 64. limit part; 65. supporting part. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] Reference example Figures 1 to 3A surge backup protector with remote signaling function, comprising an arc extinguishing chamber 1, and also comprising: a micro switch 2, which is arranged at the arc extinguishing entrance of the arc extinguishing chamber 1; a static contact frame 3, which is arranged on the opposite side of the micro switch 2, and the static contact frame 3 is provided with an arc striking portion 31, and is arranged below the entrance of the arc extinguishing chamber 1; a dynamic contact frame 4, which is arranged between the micro switch 2 and the static contact frame 3, and abuts against any one of the micro switches 2 or the static contact frame 3; an electromagnetic release 5, which is arranged above the arc extinguishing chamber 1, and the electromagnetic release 5 is connected to the arc extinguishing chamber 1 by a soft connection The wiring 8 is electrically connected to the moving contact frame 4. By arranging the micro switch 2 at the entrance of the arc extinguishing chamber 1, the distance between the micro switch 2 and the static contact frame 3 is shortened and the micro switch 2 is within the range of movement of the moving contact frame 4, thereby improving the space utilization rate in the housing 6, so that there is sufficient space in the housing 6 to install the arc extinguishing chamber 1 and provide convenience for assembling other parts, thereby improving the arc extinguishing ability of the arc extinguishing chamber 1, and guiding the arc at the moment when the moving contact frame 4 and the static contact frame 3 are separated to the arc extinguishing chamber 1 through the arc striking portion 31, thereby achieving the arc extinguishing effect;

[0024] It is worth mentioning that the housing 6 includes a first terminal 61 and a second terminal 62 at both ends of the housing 6. The first terminal 61 is electrically connected to the other end of the electromagnetic release 5, and the second terminal 62 is electrically connected to the static contact frame 3. The static contact frame 3 is provided with a static contact 32. The first terminal 61 and the second terminal 62 are electrically connected to the circuit. The electromagnetic release 5 monitors the current in the circuit. When the current exceeds the allowable limit, the electromagnetic release 5 acts and pushes the release member of the operating mechanism 7 to separate the moving contact frame 4 from the static contact frame 3, thereby cutting off the current supply of the circuit to prevent damage to the electrical appliance.

[0025] It is worth mentioning that a signal terminal 63 is provided in the housing 6 and is electrically connected to the lead-out end of the micro switch 2. The signal terminal 63 is arranged below the second wiring terminal 62. When the moving contact frame 4 is separated from the static contact frame 3 and the abutment portion 41 triggers the micro switch 2, a disconnection signal is sent to the backstage through the signal terminal 63, thereby realizing the remote signaling function of the backup protector.

[0026] It is worth mentioning that an operating mechanism 7 is provided in the housing 6, and the moving contact frame 4 is linked to the operating mechanism 7. The moving contact frame 4 is provided with a contact portion 41, and a moving contact 42 is provided on the back of the contact portion 41. The opening and closing operations of the backup protector are completed by the operating mechanism 7. The contact portion 41 is used to trigger the micro switch 2, and the moving contact 42 abuts against the static contact 32, and the contact is used for transmitting current.

[0027] It is worth mentioning that the shell 6 is provided with a limit portion 64, and is arranged above the micro switch 2, for limiting the swing angle of the moving contact frame 4. The shell 6 is also provided with a supporting portion 65, and is arranged between the electromagnetic release 5 and the arc extinguishing chamber 1. When the line is short-circuited, the elastic force released by the torsion spring in the operating mechanism 7 drives the moving contact frame 4 to move rapidly. At this time, the limit portion 64 not only limits the swing angle of the moving contact frame 4, but also reduces the kinetic energy impact force of the moving contact frame 4 on the micro switch 2. The supporting portion 65 provides a support point for the electromagnetic release.

[0028] The above design scheme can enable the product to achieve the advantages of reducing manufacturing costs and improving assembly efficiency.

[0029] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A surge backup protector with remote signaling function, comprising an arc extinguishing chamber (1), characterized in that: Also includes; A micro switch (2) is arranged at the arc extinguishing entrance of the arc extinguishing chamber (1); A stationary contact frame (3) is arranged on the opposite side of the micro switch (2), the stationary contact frame (3) is provided with an arc striking portion (31) and is arranged below the entrance of the arc extinguishing chamber (1); The movable contact frame (4) is arranged between the micro switch (2) and the stationary contact frame (3), and abuts against any one of the micro switch (2) or the stationary contact frame (3); An electromagnetic release (5) is arranged above the arc extinguishing chamber (1), and the electromagnetic release (5) is electrically connected to the moving contact frame (4) via a flexible connecting line (8).

2. The surge backup protector with remote signaling function according to claim 1, characterized in that: The invention comprises a shell (6), wherein two ends of the shell (6) are provided with a first wiring terminal (61) and a second wiring terminal (62), wherein the first wiring terminal (61) is electrically connected to the other end of the electromagnetic release (5), and the second wiring terminal (62) is electrically connected to a stationary contact frame (3), and the stationary contact frame (3) is provided with a stationary contact (32).

3. The surge backup protector with remote signaling function according to claim 2 is characterized in that: A signal terminal (63) is provided in the housing (6) and is electrically connected to the lead-out end of the micro switch (2); the signal terminal (63) is arranged below the second wiring terminal (62).

4. The surge backup protector with remote signaling function according to claim 2 or 3, characterized in that: An operating mechanism (7) is arranged in the housing (6), the movable contact frame (4) is linked to the operating mechanism (7), the movable contact frame (4) is provided with a contact portion (41), and a movable contact (42) is arranged on the back of the contact portion (41).

5. The surge backup protector with remote signaling function according to claim 4 is characterized in that: The housing (6) is provided with a limiting portion (64) and is arranged above the micro switch (2) for limiting the swing angle of the moving contact frame (4). The housing (6) is also provided with a supporting portion (65) and is arranged between the electromagnetic release (5) and the arc extinguishing chamber (1).

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