CN111710558B - Apparatus and method for protecting low voltage circuit - Google Patents
Apparatus and method for protecting low voltage circuit Download PDFInfo
- Publication number
- CN111710558B CN111710558B CN202010553309.9A CN202010553309A CN111710558B CN 111710558 B CN111710558 B CN 111710558B CN 202010553309 A CN202010553309 A CN 202010553309A CN 111710558 B CN111710558 B CN 111710558B
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- China
- Prior art keywords
- recess
- circuit protection
- screw rod
- groove
- activity joint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/002—Thermally-actuated switches combined with protective means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/04—Bases; Housings; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
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- Casings For Electric Apparatus (AREA)
- Fuses (AREA)
Abstract
The equipment and the method for protecting the low-voltage circuit comprise a circuit protection shell, wherein a groove is formed in the circuit protection shell, a fixed conducting strip is fixedly installed in the groove, a movable joint is arranged at the opening of the groove in a sliding mode, a groove baffle is arranged on the circuit protection shell in a sliding mode, the groove baffle is connected with the movable joint in a transmission mode, a temperature sensing switch is installed in the groove, a screw rod is installed on the circuit protection shell in a rotating mode, the screw rod is connected with the groove baffle in a threaded mode, when the circuit protection shell breaks down inside to cause temperature shock, a rotating shaft of a motor drives the screw rod to rotate, the screw rod drives the groove baffle to slide and block the opening of the groove when rotating, the groove baffle is used for isolating the circuit protection shell from the outside and preventing fire from spreading and diffusing, and the groove baffle can drive a connecting rod to upwards push the movable joint when sliding, so that the conducting strip is separated from the fixed conducting strip and the circuit is disconnected.
Description
Technical Field
The present invention relates to the field of circuit protection technology, and more particularly, to an apparatus and method for protecting low voltage circuits.
Background
Circuit protection is a cost-effective analogue of insurance and is rarely appreciated as the situation progresses, and when problems arise, it is expected to provide full protection for the expected or even unforeseen events, and the meter personnel need to provide circuit protection that matches the requirements of the application to prevent any internal or external events that might adversely affect the reliability of the system or even lead to complete failure. In the prior art, most of protection devices of low-voltage circuits are trip structures, when the circuit is damaged, automatic brake can be switched off, but in many cases, when the circuit breaks down, fire disasters are accompanied, and the circuit cannot be blocked by tripping, so that equipment and a method for protecting the low-voltage circuit are provided to solve the problems.
Disclosure of Invention
In view of the above, to overcome the drawbacks of the prior art, the present invention provides an apparatus and method for protecting a low voltage circuit to solve the above problems.
In order to achieve the purpose, the equipment for protecting the low-voltage circuit comprises a circuit protection shell, wherein a groove is formed in the circuit protection shell, a fixed conducting strip is fixedly installed in the groove, a movable joint is arranged at the opening of the groove in a sliding mode, a groove baffle is arranged on the circuit protection shell in a sliding mode, the groove baffle is connected with the movable joint in a transmission mode, a temperature sensing switch is installed in the groove, a screw rod is installed on the circuit protection shell in a rotating mode, the screw rod is connected with the groove baffle in a threaded mode, a motor is fixedly installed on the circuit protection shell, the motor is connected with the temperature sensing switch, a rotating shaft of the motor is connected with the screw rod in a transmission mode, a mounting frame is fixedly arranged on the circuit protection shell, the movable joint vertically slides on the mounting frame, a reset spring is connected between the movable joint and the mounting frame, the movable joint is connected with one end of a connecting rod in a hinged mode, the other end of the connecting rod is connected with the groove baffle in a hinged mode, the movable joint comprises a movable ring and a conducting strip, the mounting frame is fixed on the lower surface of the movable ring, the connecting rod is connected with the movable ring in a hinged mode, and the movable ring in a sliding mode.
The mounting bracket is of a font structure, a guide post is fixedly arranged on the mounting bracket, the movable joint is connected to the guide post in a sliding mode, and the reset spring is sleeved on the guide post.
The invention also provides a method for protecting a low-voltage circuit, which is used for the equipment for protecting the low-voltage circuit and comprises
Setting a trigger value of a temperature sensing switch;
connecting the output end of the temperature sensing switch with the input end of the motor;
the temperature of fixed conducting strip of temperature-sensing switch response and activity joint junction, when the temperature reaches the settlement when triggering the value, the pivot of motor begins to rotate and drives the screw rod and rotate, the screw rod rotates and drives the mouth part that the groove baffle slided and blocks the recess, keeps apart the recess, drive the connecting rod upwards to promote the activity joint when the groove baffle slides, time activity joint and fixed conducting strip separation.
Has the advantages that:
when the circuit protection casing is broken down inside and the temperature rises suddenly, the rotating shaft of the motor drives the screw rod to rotate, the screw rod drives the groove baffle plate to slide and block at the opening of the groove when rotating, the groove baffle plate is used for isolating the circuit protection casing from the outside and preventing the fire from spreading and diffusing, and the groove baffle plate can drive the connecting rod to upwards push the movable joint when sliding, so that the conducting strips are separated from the fixed conducting strips, and the circuit is disconnected.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the present invention.
In the figure: the circuit protection device comprises a circuit protection shell 1, a fixed conducting strip 2, a movable joint 3, a groove baffle 4, a temperature sensing switch 5, a screw 6, a motor 7, an installation rack 8, a reset spring 9, a connecting rod 10, a guide post 11, a movable ring 12 and a conducting strip 13.
Detailed Description
The following describes the present invention in further detail with reference to fig. 1.
As shown in figure 1, the equipment for protecting the low-voltage circuit comprises a circuit protection shell 1, wherein a groove is arranged on the circuit protection shell 1, a fixed conducting strip 2 is fixedly arranged in the groove, the fixed conducting strip 2 is used for being connected into the circuit protection shell 1 and is connected with a circuit component in the circuit protection shell 1, a movable joint 3 is arranged at the opening part of the groove in a sliding mode, the movable joint 3 is used for being connected with an external circuit, a groove baffle 4 is arranged on the circuit protection shell 1 in a sliding mode, the groove baffle 4 is in transmission connection with the movable joint 3, a temperature sensing switch 5 is arranged in the groove, a screw rod 6 is rotatably arranged on the circuit protection shell 1, the screw rod 6 is in threaded connection with the groove baffle 4, a motor 7 is fixedly arranged on the circuit protection shell 1, and the motor 7 is connected with the temperature sensing switch 5, and the pivot of motor 7 and the transmission of screw rod 6 are connected, the fixed mounting bracket 8 that is equipped with on the circuit protection casing 1, the activity connects 3 vertical slip on mounting bracket 8, and be connected with reset spring 9 between activity connects 3 and the mounting bracket 8, the activity connects 3 and the articulated connection of one end of connecting rod 10, the other end and the articulated connection of recess baffle 4 of connecting rod 10, when circuit protection casing 1 is inside to break down and lead to the temperature surge, the pivot of motor 7 drives screw rod 6 and rotates, drive recess baffle 4 when screw rod 6 rotates and slide and keep off the oral area at the recess, be used for keeping apart circuit protection casing 1 with the external world, prevent the intensity of a fire spreading diffusion, recess baffle 4 can drive connecting rod 10 upwards to promote activity and connect 3 when gliding, make conducting strip 12 and fixed conducting strip 2 separation, make the circuit disconnection.
The movable joint 3 comprises a movable ring 12 and a conducting strip 13, the conducting strip 13 is fixed on the lower surface of the movable ring 12, the connecting rod 10 is hinged with the movable ring 12, and the movable ring 12 is connected with the mounting frame 8 in a sliding manner.
A method for protecting a low voltage circuit comprising
Setting a trigger value of the temperature sensing switch 5;
connecting the output end of the temperature sensing switch 5 with the input end of the motor 7;
the temperature of fixed conducting strip 2 and the 3 junctions of activity of temperature-sensing switch 5 response, when the temperature reached the trigger value of settlement, the pivot of motor 7 began to rotate and drives screw rod 6 and rotate, and screw rod 6 rotates and drives the oral area that recess baffle 4 slided and block the recess, keeps apart the recess, drives connecting rod 10 when recess baffle 4 slides and upwards promotes activity joint 3, makes activity joint 3 and fixed conducting strip 2 separation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A equipment for protecting low voltage circuit, its characterized in that, including circuit protection casing (1), be equipped with the recess on circuit protection casing (1), fixed mounting has fixed conducting strip (2) in the recess, and the oral area slip of recess is equipped with activity joint (3), it is equipped with recess baffle (4) to slide on circuit protection casing (1), recess baffle (4) and activity joint (3) transmission are connected, install temperature-sensing switch (5) in the recess, it installs screw rod (6) to rotate on circuit protection casing (1), screw rod (6) and recess baffle (4) threaded connection, fixed mounting has motor (7) on circuit protection casing (1), motor (7) and temperature-sensing switch (5) are connected, and the pivot and screw rod (6) transmission of motor (7) are connected, fixed mounting bracket (8) that are equipped with on circuit protection casing (1), activity joint (3) are vertical slip on mounting bracket (8), and be connected with reset spring (9) between activity joint (3) and mounting bracket (8), the one end of activity joint (3) and connecting rod (10), the activity joint (10) and the articulated connection of recess (12) including activity joint (13) articulated connection groove (13), activity joint (13) and activity joint (13) are connected Conducting strip (13) are fixed at the lower surface of activity ring (12), connecting rod (10) and activity ring (12) are articulated to be connected, activity ring (12) and mounting bracket (8) sliding connection.
2. The apparatus for protecting low-voltage circuits according to claim 1, characterized in that said mounting frame (8) is of 7-shaped structure, a guide post (11) is fixedly arranged on said mounting frame (8), said movable joint (3) is slidably connected to said guide post (11), and said return spring (9) is sleeved on said guide post (11).
3. Method for protecting low-voltage circuits, for an apparatus for protecting low-voltage circuits according to any one of claims 1 to 2, characterized in that it comprises
Setting a trigger value of the temperature sensing switch (5);
the output end of the temperature sensing switch (5) is connected with the input end of the motor (7);
temperature-sensing switch (5) response the temperature of fixed conducting strip (2) and activity joint (3) junction, reach the settlement when the temperature when the trigger value, the pivot of motor (7) begins to rotate and drives screw rod (6) and rotate, screw rod (6) rotate and drive the oral area that recess baffle (4) slided and blocked the recess, keep apart the recess, drive connecting rod (10) upwards promote activity joint (3) when recess baffle (4) slide, make activity joint (3) and fixed conducting strip (2) separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010553309.9A CN111710558B (en) | 2020-06-17 | 2020-06-17 | Apparatus and method for protecting low voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010553309.9A CN111710558B (en) | 2020-06-17 | 2020-06-17 | Apparatus and method for protecting low voltage circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111710558A CN111710558A (en) | 2020-09-25 |
| CN111710558B true CN111710558B (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010553309.9A Active CN111710558B (en) | 2020-06-17 | 2020-06-17 | Apparatus and method for protecting low voltage circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN111710558B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903911A (en) * | 2014-02-21 | 2014-07-02 | 佛山市川东磁电股份有限公司 | Temperature-sensitive rotary movement structure |
| CN107768188A (en) * | 2017-12-01 | 2018-03-06 | 成都华西天然药物有限公司 | A kind of over-temperature protection device of pulse power amplifier |
| CN209200394U (en) * | 2018-12-17 | 2019-08-02 | 大庆市华禹石油机械制造有限公司 | A kind of dedicated explosion-proof electrical distribution box in oil field |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09213182A (en) * | 1996-02-05 | 1997-08-15 | Texas Instr Japan Ltd | Motor protector |
| CN105720744B (en) * | 2014-12-05 | 2020-06-09 | 法雷奥电机设备公司 | Motor vehicle starter provided with a thermal protection system |
| CN107731607A (en) * | 2017-11-03 | 2018-02-23 | 许昌商通实业有限公司 | A kind of high-voltage switch gear automatic open/closing device |
| CN208889571U (en) * | 2018-12-04 | 2019-05-21 | 宝应电器厂 | A kind of temperature controller for domestic circuit equipment |
| CN209562150U (en) * | 2019-02-22 | 2019-10-29 | 恒大智慧充电科技有限公司 | Line protective structure and charging equipment |
| CN210223894U (en) * | 2019-08-15 | 2020-03-31 | 宝应安的电子技术有限公司 | Novel temperature controller with overheat protection function |
| CN111064091A (en) * | 2020-01-06 | 2020-04-24 | 义乌市婉聚电子有限公司 | Block terminal with function is reminded in excess temperature protection |
-
2020
- 2020-06-17 CN CN202010553309.9A patent/CN111710558B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903911A (en) * | 2014-02-21 | 2014-07-02 | 佛山市川东磁电股份有限公司 | Temperature-sensitive rotary movement structure |
| CN107768188A (en) * | 2017-12-01 | 2018-03-06 | 成都华西天然药物有限公司 | A kind of over-temperature protection device of pulse power amplifier |
| CN209200394U (en) * | 2018-12-17 | 2019-08-02 | 大庆市华禹石油机械制造有限公司 | A kind of dedicated explosion-proof electrical distribution box in oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111710558A (en) | 2020-09-25 |
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