Single-breakpoint mechanism convenient for micro-motion installation and measuring switch

Abstract

A single-breakpoint mechanism convenient to install and micro-move and a measuring switch are disclosed, the single-breakpoint mechanism comprises a first shell and a second shell which are matched with each other, an installation space is formed between the first shell and the second shell, the outer surface of the first shell or the second shell is provided with an installation groove, and one side of the installation groove is provided with a notch communicated with the installation space; the breaking unit is arranged in the mounting space and comprises a moving contact assembly rotatably arranged in the mounting space and a static contact matched with the moving contact assembly, one end of the moving contact assembly is provided with a trigger piece, a microswitch is arranged in the mounting groove, and the other end of the moving contact assembly is provided with a switch. And a driving rod of the microswitch partially or completely enters the mounting space through the notch and is positioned on a moving path of the triggering piece. By optimizing the installation position and the contact gap, the microswitch is accurately positioned, it is ensured that the microswitch can achieve accurate and sensitive signal triggering under the action of the moving contact assembly, and the problem that triggering is unstable in a traditional design is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus technical field, concretely relates to a single break point mechanism and measurement switch convenient to install micro motion. BACKGROUND

[0002] The intelligent measurement switch is the wisdom "controller" of energy information flow and service flow, and is the key part of low-voltage area, which is directly related to the safe, intelligent and economic power utilization of the general power users, and has important social significance and economic value.

[0003] It is generally provided with a measurement module, and generally uses micro motion to detect the position of the moving contact. However, in the existing measurement switch, the cooperation between the micro switch and the moving contact often has the problem of too large or too small gap, which leads to inaccurate contact and unstable triggering time. The unstable and inaccurate triggering will lead to the feedback signal not timely enough during the closing and opening process of the micro switch, and will bring uncertainty risk to the intelligent measurement system. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a single break point mechanism and measurement switch convenient to install micro motion.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A single break point mechanism convenient to install micro motion, comprising:

[0007] A first housing and a second housing cooperated with each other, and an installation space is formed between the first housing and the second housing, and an installation groove is arranged in any direction of the first housing or the second housing, and a notch communicating with the installation space is arranged on one side of the installation groove;

[0008] A breaking unit arranged in the installation space, comprising a moving contact assembly rotatably arranged in the installation space and a static contact cooperated with the moving contact assembly, and a trigger arranged at one end of the moving contact assembly,

[0009] A micro switch arranged in the installation groove, and a driving rod of the micro switch partially or wholly enters the installation space through the notch, and the position conversion of the micro switch can be realized by the driving rod driven by the trigger.

[0010] At least two positioning pins are arranged in the installation groove.

[0011] A bearing surface is arranged on one side of the notch, and the driving rod of the micro switch is partially arranged on the bearing surface.

[0012] The moving contact assembly comprises a rotating shaft and a moving contact arranged on the rotating shaft, and the rotating shaft extends to the side away from the moving contact to form the trigger.

[0013] The trigger is arranged as an inclined surface towards the driving rod side.

[0014] The installation space is further provided with an arc extinguishing chamber corresponding to the static contact.

[0015] A measuring switch comprises a base, a plurality of phase wire channels are arranged in the base, and each phase wire channel is provided with the single-break point mechanism facilitating micro-motion installation and the operating mechanism linked with the single-break point mechanism facilitating micro-motion installation.

[0016] The micro-motion switch is accurately positioned by optimizing the installation position and the contact gap, so that the micro-motion switch can realize accurate and sensitive signal triggering under the action of the moving contact assembly, and the problem of unstable triggering in the traditional design is overcome. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the utility model.

[0018] Figure 2 It is a three-dimensional schematic view of the utility model.

[0019] Figure 3 It is Figure 2 It is an enlarged schematic view of A in the utility model.

[0020] Figure 4 It is an internal schematic view of the utility model.

[0021] Figure 5 It is a structural schematic view of the utility model (without the micro-motion switch).

[0022] Figure 6 It is a structural schematic view of the utility model applied to a measuring switch. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] It should be noted that all directionality indications such as up, down, left, right, front, back, etc. in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture such as shown in the drawings, and if the specific posture changes, the directionality indications also change accordingly.

[0025] AsFigure 1 and Figure 2 The utility model discloses a single break point mechanism convenient to install micro motion, the single break point mechanism is a complete module, and subsequent assembly is convenient, and it includes the casing 100 that is formed by first casing 300 and second casing 400 split, and the casing 100 is equipped with the installation space, and the installation space is equipped with the breaking unit, in order to make micro switch can directly link with breaking unit, in this embodiment, the installation slot is directly set up on first casing or second casing, is used to install micro switch, and makes the drive rod of micro switch enter the installation space, and is directly triggered by moving contact assembly.

[0026] The installation slot can be arranged on the side of the casing, or an opening can be arranged on the top or bottom, and the micro switch can be pressed downward or upward in a slidable manner by the support and can be driven by the internal moving contact assembly to change state, or the micro switch can enter the casing from an opening on one end of the casing.

[0027] The micro switch and the moving contact move synchronously, and the opening / closing state (such as closing or opening) of the contact can be immediately detected to provide accurate real-time signals for the control system.

[0028] In this embodiment, the moving contact assembly is linked with the micro switch by the trigger piece integrally formed on the rotating shaft.

[0029] In another embodiment, the moving contact assembly can be linked with the micro switch by a driving rod or a connecting rod.

[0030] The first casing 300 and the second casing 400 cooperate with each other, and the installation space is formed between the first casing 300 and the second casing 400, the outer surface of the first casing 300 or the second casing 400 is provided with the installation slot 320, one side of the installation slot 320 is provided with the notch 340 communicating with the installation space, and the notch can meet the relative movement of the drive rod of the micro switch 200, that is, meet the stroke of reset and triggering.

[0031] The breaking unit is arranged in the installation space and includes the moving contact assembly 600 rotatably arranged in the installation space and the static contact 500 cooperating with the moving contact assembly 600, one end of the moving contact assembly 600 is provided with the trigger piece 610,

[0032] The micro switch 200 is arranged in the installation slot 320, and the drive rod 210 of the micro switch 200 partially or entirely enters the installation space through the notch 340 and is located on the movement path of the trigger piece 610.

[0033] Meanwhile, the micro switch 200 is arranged in an inverted manner, so that the other end of the moving contact assembly moves upward when the moving contact assembly is in the closed state and presses the micro switch.

[0034] Micro switch includes a drive rod, the drive rod is a hinged reed at one end, which is arranged on the switch button, when one end is stressed, it can press the switch button, and then trigger, and when the stress is removed, it can reset due to the reset force of the switch button itself. That is, the micro switch realizes fast response and reset during closing and opening, greatly reducing signal delay.

[0035] The moving contact is physically connected with the micro switch, and the action delay tends to be zero. At the same time, compared with the linkage mode through connecting rods or indicators in the past, direct linkage reduces the number of mechanical parts, and reduces the risk of jamming, wear or assembly error.

[0036] The mounting groove 320 is provided with at least two positioning pins 330, and the position of the positioning pin 350 is matched with the type of the selected micro switch, that is, the position is aligned with the positioning hole of the micro switch itself, so that the position reliability of the micro switch mounted in the mounting groove can be ensured, and position deviation can be avoided.

[0037] Initial state: the micro switch is in a natural bounce state, in a non-contact state, and no signal output.

[0038] Closing process: when the circuit breaker is closed, the moving contact assembly moves along the predetermined trajectory and accurately presses the micro switch, so that the contact is closed, and the closing signal is transmitted to the control system in real time.

[0039] Opening process: when the circuit breaker is opened, the moving contact assembly resets, and the micro switch quickly returns to the original position with the help of the built-in spring, the contact is disconnected, and the opening state is fed back in time

[0040] The spring force of the micro switch is adjusted to ensure the action sensitivity and avoid false triggering. The micro switch shell adopts a protective design (such as an IP rated shell) to adapt to harsh environments such as high temperature and humidity.

[0041] At the same time, the micro switch is built-in, which can avoid the influence of harsh environment on the micro switch.

[0042] As shown in Figure 3 and Figure 5 , one side of the notch 340 is provided with a bearing surface 310, and the drive rod part of the micro switch 200 is arranged on the bearing surface 310. The bearing surface 310 plays a limiting role on the drive rod, ensures that it does not deviate from the movement path of the trigger, and ensures that it can always be driven by the trigger.

[0043] As shown in Figure 4As shown, the moving contact assembly 600 comprises a rotatable rotating shaft and a moving contact mounted on the rotating shaft, the rotating shaft extends to the side away from the moving contact to form a trigger 610, the trigger is directly formed with the rotating shaft, and the rotation of the trigger and the moving contact is synchronous, that is, when the moving contact and the static contact are closed, the trigger triggers the micro switch, and when the moving contact and the static contact are opened, the trigger releases the trigger of the micro switch.

[0044] The trigger 610 is provided as an inclined surface towards the side of the driving rod 210, so that the contact between the trigger and the driving rod is more stable, the driving rod is driven to move synchronously along the direction of the inclined surface, and the micro switch is triggered, and the force when the moving contact is opened is larger, if directly hitting the driving rod of the micro switch, it may cause damage to the driving rod, therefore, the design of the inclined surface can avoid direct damage to the driving rod when the moving contact hits the driving rod.

[0045] The mounting space is also provided with an arc extinguishing chamber 700, and the arc extinguishing chamber 700 is arranged corresponding to the static contact, the arc extinguishing chamber is a conventional arc extinguishing chamber, which is arranged on one side of the cooperation position of the moving contact and the static contact, and the arc generated when the moving contact and the static contact are repelled by the arc plate is introduced into the arc extinguishing chamber.

[0046] As Figure 6 As shown, the utility model discloses a kind of measurement switches, it includes base 10, the base 10 is equipped with several phase line passages, and each phase line passage is equipped with the single-break point mechanism 20 of above-mentioned easy-to-install micro-motion and the operating mechanism 30 of easy-to-install micro-motion single-break point mechanism 20 linkage setting.

[0047] Each phase line passage is separated by partition, so that each phase line passage does not interfere with each other, single-break point mechanism 20 is installed and arranged in the phase line passage, and in order to control single-break point mechanism, operating mechanism is arranged on each single-break point mechanism and is linked with internal moving contact assembly, and the operating mechanism is the conventional structure in molded case circuit breaker, so it is not described in the embodiment.

[0048] The embodiment should not be regarded as the limitation of the utility model, but any improvement based on the spirit of the utility model should be within the protection scope of the utility model.

Claims

1. A single-break mechanism facilitating micro-motion installation, characterized in that: It includes: The first shell (300) and the second shell (400) are matched, and the mounting space is formed between the first shell (300) and the second shell (400). Any direction of the first shell (300) or the second shell (400) is provided with a mounting groove (320), and one side of the mounting groove (320) is provided with a notch (340) communicating with the mounting space; The breaking unit is arranged in the mounting space and includes a movable contact assembly (600) rotatably arranged in the mounting space and a static contact (500) matched with the movable contact assembly (600). One end of the movable contact assembly (600) is provided with a trigger (610), The micro switch (200) is arranged in the mounting groove (320), and the driving rod (210) of the micro switch (200) partially or entirely enters the mounting space through the notch (340) and can be driven by the trigger to realize position conversion.

2. A single-break mechanism for facilitating micro-movement installation according to claim 1, characterized in that: At least two positioning pins (330) are arranged in the mounting groove (320).

3. A single-break mechanism for facilitating micro-motion installation according to claim 1, characterized in that: One side of the notch (340) is provided with a bearing surface (310), and the driving rod of the micro switch (200) is partially arranged on the bearing surface (310).

4. A single-break mechanism for facilitating micro-motion installation according to claim 1, characterized in that: The movable contact assembly (600) includes a rotating shaft and a movable contact arranged on the rotating shaft, and the rotating shaft extends to the side away from the movable contact to form the trigger (610).

5. A single-break mechanism for facilitating micro-motion installation according to claim 4, characterized in that: The trigger (610) is arranged as an inclined surface towards the side of the driving rod (210).

6. A single-break mechanism for facilitating micro-motion installation according to claim 1, characterized in that: The mounting space is further provided with an arc extinguishing chamber (700), and the arc extinguishing chamber (700) is arranged corresponding to the static contact.

7. A metrology switch, characterized by: It includes a base (10), and the base (10) is provided with a plurality of phase line channels, and each phase line channel is provided with the single-break-point mechanism (20) for facilitating micro-motion installation and the operating mechanism (30) linked with the single-break-point mechanism (20) for facilitating micro-motion installation according to any one of claims 1 to 6.

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