CN217280624U - Plastic shell type circuit breaker - Google Patents
Plastic shell type circuit breaker Download PDFInfo
- Publication number
- CN217280624U CN217280624U CN202220294298.1U CN202220294298U CN217280624U CN 217280624 U CN217280624 U CN 217280624U CN 202220294298 U CN202220294298 U CN 202220294298U CN 217280624 U CN217280624 U CN 217280624U
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- Prior art keywords
- temperature measuring
- circuit breaker
- temperature
- plate
- binding post
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides a mould shell type circuit breaker, casing and the binding post of setting in the casing still include the temperature measuring device who is used for detecting binding post temperature, temperature measuring device includes that temperature sensor and cover establish the insulating cover in the temperature sensor outside, is equipped with the insulation board between insulating cover and binding post's connecting plate, when the connecting plate is installed on the casing, can compress tightly the insulation board on the insulating cover, through setting temperature sensor in the insulating cover to set up the insulation board between insulating cover and binding post's connecting plate, not only can guarantee temperature measuring device and binding post reliable contact, make temperature sensor's temperature variation keep unanimous with binding post, but also can guarantee that temperature sensor and binding post are reliably insulated, prevent that temperature measuring device from damaging, have safe and reliable's characteristics.
Description
Technical Field
The utility model relates to a low voltage apparatus field especially relates to a mould shell type circuit breaker.
Background
The traditional intelligent plastic shell type circuit breaker is mainly used for data acquisition, data precision judgment and communication joint debugging. The intelligent switch for the Internet of things is required to have a misalignment analysis function and a high-precision (0.5-level) metering function, provides support for line loss analysis and load analysis, meets the requirement of fine management of power utilization, supports a system, a master meter, a household meter and a measurement switch, can effectively support calculation work of misalignment change operation errors of the intelligent electric energy meter after statistical analysis, enables an information system to be optimized and upgraded, carries out comprehensive management on system data, promotes online monitoring of the state of the intelligent electric energy meter, implements electric energy meter dismantling verification and field inspection, realizes reporting of meter box power failure and recovery, facilitates checking the power failure and recovery condition of the electric energy meter by using a system, can be flexibly configured according to requirements, and can prolong the service life of a product.
However, the temperature monitoring of the terminals of the inlet and outlet lines of the circuit breaker is also an important index for ensuring safe electricity utilization, and for the small-shell-frame forward-inserted circuit breaker, due to the fact that the structure is compact, the appearance size is small, mature solutions are not available in the industry, the requirements of accurate temperature measurement and impact voltage resistance tests are met, and the requirements of the installation process and the efficiency cannot be met. In addition, still need reliably fix temperature measuring device on the leading-out terminal, avoid external force impact and vibrations to lead to temperature measuring device displacement, guarantee to hug closely and carry out accurate temperature measurement on the leading-out terminal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a can safe and reliable detect the mould shell type circuit breaker of binding post temperature.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a mould shell type circuit breaker, casing and the binding post of setting in the casing still include the temperature measuring device who is used for detecting binding post temperature, temperature measuring device includes that temperature sensor and cover establish the insulating cover in the temperature sensor outside, is equipped with the insulation board between insulating cover and binding post's connecting plate, when the connecting plate was installed on the casing, can compress tightly the insulation board on the insulating cover.
Preferably, the temperature measuring device further comprises a circuit board, and the circuit board is connected with the plurality of temperature sensors respectively.
Preferably, the insulation sleeve is reversely buckled on the circuit board, and the insulation plate is arranged at one end, far away from the circuit board, of the insulation sleeve and matched with the connecting plate.
Preferably, a pouring sealant is arranged in the insulating sleeve, and the temperature sensor and the insulating sleeve are arranged at intervals.
Preferably, the circuit board is fixed on the housing by screws.
Preferably, the insulating plate is heat-conducting silica gel.
Preferably, the casing is provided with a temperature measuring hole for accommodating the insulating sleeve and the insulating plate, a reflecting plate matched with the static contact is arranged in the casing, a shielding structure extending towards the temperature measuring hole is arranged on the reflecting plate, and the shielding structure is used for limiting the insulating plate in the temperature measuring hole.
Preferably, the shielding structure comprises a baffle plate in contact with the connecting plate, and the connecting plate and the baffle plate are respectively used for shielding the temperature measuring hole.
Preferably, the bottom plate outside of shown casing is equipped with a plurality of kerfs that correspond respectively with the inboard multiunit circuit breaker looks utmost point of casing, is equipped with the baffle between the adjacent kerfs, is equipped with the chamber of walking that is used for holding the lead wire inboard at the baffle, is equipped with the through wires hole in the one end of walking the chamber, the circuit board spanes a plurality of kerfs are connected with the lead wire, the lead wire passes the through wires hole is connected with the temperature measurement terminal, and the temperature measurement terminal is connected with the control panel.
Preferably, the circuit board is connected with the temperature measuring terminal through one or more lead wires.
The utility model discloses a mould shell type circuit breaker through setting up temperature sensor in insulating cover to set up the insulation board between insulating cover and binding post's connecting plate, not only can guarantee temperature measuring device and binding post reliable contact, make temperature sensor's temperature variation keep unanimous with binding post, but also can guarantee that temperature sensor and binding post are reliable insulating, prevent that temperature measuring device from damaging, have safe and reliable's characteristics.
In addition, set up the circuit board and be connected with temperature sensor, the circuit board not only can be the fixed stay multiunit temperature sensor simultaneously, and the circuit board passes through the lead wire moreover and is connected with the temperature measurement terminal, can reduce the degree of difficulty of walking the line, need not be connected with the lead wire respectively with the temperature sensor who distributes in three looks utmost point. Particularly, the insulating sleeve is insulated and conducts heat with the connecting plate through the heat-conducting silica gel insulating plate, the circuit board supporting insulating sleeve also plays a role in limiting and fixing, and the installation efficiency is greatly improved.
In addition, the circuit board can also be connected with the temperature measurement terminal through a lead wire, can further reduce the degree of difficulty of walking the line.
Drawings
FIG. 1 is a schematic view of the temperature measuring device of the present invention in cooperation with a housing;
figure 2 is a cross-sectional view of the present invention from figure 1;
fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention;
fig. 4 is a schematic structural diagram of the housing of the present invention.
Detailed Description
The following describes the embodiment of the molded case circuit breaker according to the present invention with reference to fig. 1 to 4. The molded case circuit breaker of the present invention is not limited to the description of the following embodiments.
As shown in fig. 1, the utility model discloses a moulded case circuit breaker includes casing 1 and the binding post of setting in casing 1, and casing 1 is still including the temperature measuring device 3 that is used for detecting the binding post temperature, temperature measuring device 3 includes temperature sensor 3034 and cover and establishes the insulating cover 3032 in the temperature sensor 3034 outside, is equipped with insulation board 304 between the connecting plate 103 of insulating cover 3032 and binding post, when connecting plate 103 is installed on casing 1, can compress tightly insulation board 304 on insulating cover 3032.
The utility model discloses a mould shell type circuit breaker, through setting up temperature sensor 3034 in insulating cover 3032 to set up insulation board 304 between insulating cover 3032 and binding post's connecting plate 103, not only can guarantee that temperature measuring device 3 and binding post reliably contact, make temperature sensor 3034's temperature variation and binding post keep unanimous, but also can guarantee that temperature sensor 3034 and binding post are reliably insulating, prevent that temperature measuring device 3 from damaging, have safe and reliable's characteristics.
Further, the temperature sensor 3034 of this embodiment is a thermal transistor, the temperature measuring device 3 further includes a circuit board 3031 connected to the temperature sensor 3034, the circuit board 3031 is connected to the temperature measuring terminal 301 through a lead 302, the temperature measuring terminal 301 is connected to the control board 106, the insulating sleeve 3032 is fastened upside down on the circuit board 3031, a potting adhesive 3033 is disposed in the insulating sleeve 3032, the temperature sensor 3034 and the insulating sleeve 3032 are arranged at an interval, and the insulating plate 304 is disposed at one end of the insulating sleeve 3032, which is far away from the circuit board 3031, and is matched with the connecting plate 103. When the insulation board 304 is pressed on the insulation sleeve 3032 by the wiring terminal, the circuit board 3031 is pressed on the shell 1 by the insulation sleeve 3032, the insulation sleeve 3032 and the circuit board 3031 can be limited, the temperature sensor 3034 is encapsulated in the insulation sleeve 3032 by the pouring sealant 3033, and the pouring sealant 3033 has good thermal conductivity and high temperature resistance.
Further, the circuit board 3031 is connected to a plurality of sets of temperature sensors 3034, in this embodiment, two circuit boards 3031 are provided, the two circuit boards 3031 correspond to a wire inlet end and a wire outlet end respectively, each circuit board 3031 is provided with three sets of temperature sensors 3034, and the three sets of temperature sensors 3034 correspond to three poles respectively. The circuit board 3031 can simultaneously and fixedly support a plurality of groups of temperature sensors 3034, and the circuit board 3031 is connected with the temperature measuring terminal 301 through the lead wires 302, so that the wiring difficulty can be reduced, and the temperature sensors 3034 distributed in three phase poles do not need to be connected with the lead wires 302 respectively.
In addition, the circuit board 301 is connected to the temperature measuring terminal 301 through one or more lead wires 302, and although the circuit board 3031 of the present embodiment is connected to the control board 106 through four lead wires 302, the circuit board 3031 may be connected to the control board 106 through only one lead wire 302, and when the circuit board 3031 is connected to the temperature measuring terminal 301 through one lead wire 302, the difficulty of wiring can be further reduced.
Further, the circuit board 3031 is fixed on the shell 1 through the screw 4, the circuit board 3031 can be fixed in the shell 1 firstly, assembly of other parts is not affected, assembly difficulty can be reduced, and automatic assembly design can be facilitated. Of course, two ends of each of the three phase electrodes may be provided with a circuit board 3031 and a temperature sensor 3034, which all belong to the protection scope of the present invention.
Further, insulation board 304 is heat conduction silica gel, and heat conduction silica gel not only transfer calorific efficiency is high, has better high temperature resistance and insulating nature moreover. Of course, other insulating materials may be used for the insulating plate 304, and all of them fall within the scope of the present invention.
As shown in fig. 4, a plurality of groups of circuit breaker phase poles are arranged on the inner side of the housing 1, each group of circuit breaker phase poles includes a corresponding connection terminal, a corresponding moving contact and a corresponding fixed contact, a bottom plate 21 of the housing 1 is provided with a plurality of bottom grooves 102 corresponding to the plurality of groups of circuit breaker phase poles, a partition is arranged between adjacent bottom grooves 102, a wiring cavity 101 for accommodating a lead wire 302 is arranged on the inner side of the partition, one end of the wiring cavity 101 is provided with a threading hole 107 penetrating through the bottom plate 21 of the housing 1, the lead wire 302 penetrates through the threading hole 107 to be connected with a temperature measuring terminal 301 and then is connected with a control board 106 through the temperature measuring terminal 301, two ends of each of the three groups of circuit breaker phase poles are provided with a connection terminal (not shown in the figure), each connection terminal includes a connection board 103 and a connection screw (not shown in the figure) in threaded fit, the housing 1 is provided with a avoiding hole 108 for avoiding the connection screw, a temperature measuring hole 104 for accommodating the insulating sleeve 3032 and the insulating plate 304 is respectively arranged on one side of the avoidance hole 108, and the insulating sleeve 3032 and the insulating plate 304 are arranged in the temperature measuring hole 104.
Further, a bottom plate 21 is arranged in the bottom groove 102, the bottom plate 21 is arranged between the temperature measuring device 3 and the mounting back plate 22, and the temperature measuring device 3 and the mounting back plate 22 are isolated and insulated by the bottom plate 21. The mounting back plate 22 is a power distribution cabinet plate attached to the back surface of a product during product mounting, and the bottom plate 21 is attached to the groove in the back surface of the product due to the fact that the product has a conductive element, so that the exposed conductive element of the product is isolated from the power distribution cabinet plate.
As shown in fig. 2, a reflection plate matched with the fixed contact is arranged in the housing 1, a shielding structure extending toward the temperature measurement hole 104 is arranged on the reflection plate, the shielding structure is used for limiting the insulation plate 304 in the temperature measurement hole 104, the insulation plate 304 is tightly pressed in the temperature measurement hole 104 through the shielding structure, and particularly when the insulation plate 304 is made of heat-conducting silica gel, the shielding structure can prevent the heat-conducting silica gel from leaking outside, and the heat-conducting silica gel is extruded to be uniformly filled in the temperature measurement hole 104, so that the heat-conducting silica gel has a larger contact area with the insulation sleeve 3032 and the connection plate 103.
The shielding structure of this embodiment includes a baffle 11 contacting with the connecting plate 103, and the connecting plate 103 and the baffle 11 are respectively used for shielding the temperature measuring hole 104.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. The utility model provides a mould shell type circuit breaker, casing (1) and set up the binding post in casing (1), its characterized in that: still including being used for detecting temperature measuring device (3) of binding post temperature, temperature measuring device (3) include temperature sensor (3034) and cover establish insulation cover (3032) in temperature sensor (3034) outside, are equipped with insulation board (304) between insulation cover (3032) and binding post's connecting plate (103), when connecting plate (103) are installed on casing (1), can compress tightly insulation board (304) on insulation cover (3032).
2. A molded case circuit breaker as defined in claim 1, wherein: the temperature measuring device (3) further comprises a circuit board (3031), and the circuit board (3031) is connected with the plurality of temperature sensors (3034) respectively.
3. A molded case circuit breaker as defined in claim 2, wherein: the insulation sleeve (3032) is buckled on the circuit board (3031) in a reversed mode, and the insulation plate (304) is arranged at one end, far away from the circuit board (3031), of the insulation sleeve (3032) and matched with the connecting plate (103).
4. A molded case circuit breaker as defined in claim 1, wherein: a pouring sealant (3033) is arranged in the insulating sleeve (3032), and the temperature sensor (3034) and the insulating sleeve (3032) are arranged at intervals.
5. A molded case circuit breaker as defined in claim 2, wherein: the circuit board (3031) is fixed on the shell (1) through a screw (4).
6. A molded case circuit breaker as defined in claim 1, wherein: the insulating plate (304) is heat-conducting silica gel.
7. A molded case circuit breaker as defined in claim 1, wherein: the temperature measuring device is characterized in that the shell (1) is provided with a temperature measuring hole (104) used for containing the insulating sleeve (3032) and the insulating plate (304), a reflecting plate matched with the static contact is arranged in the shell (1), a shielding structure extending towards the temperature measuring hole (104) is arranged on the reflecting plate, and the shielding structure is used for limiting the insulating plate (304) in the temperature measuring hole (104).
8. A molded case circuit breaker as defined in claim 7, wherein: the shielding structure comprises a baffle (11) contacted with the connecting plate (103), and the connecting plate (103) and the baffle (11) are respectively used for shielding the temperature measuring hole (104).
9. The molded case circuit breaker of claim 2, wherein: the outer side of a bottom plate (21) of the shell (1) is provided with a plurality of bottom grooves (102) corresponding to a plurality of groups of circuit breaker phase poles on the inner side of the shell (1), a partition plate is arranged between every two adjacent bottom grooves (102), a wiring cavity (101) used for containing a lead wire (302) is arranged on the inner side of the partition plate, one end of the wiring cavity (101) is provided with a threading hole (107), the circuit board (3031) stretches across the bottom grooves (102) and is connected with the lead wire (302), the lead wire (302) penetrates through the threading hole (107) and is connected with a temperature measuring terminal (301), and the temperature measuring terminal (301) is connected with a control board (106).
10. A molded case circuit breaker as defined in claim 2, wherein: the circuit board (3031) is connected with the temperature measuring terminal (301) through one or more lead wires (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220294298.1U CN217280624U (en) | 2022-02-14 | 2022-02-14 | Plastic shell type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220294298.1U CN217280624U (en) | 2022-02-14 | 2022-02-14 | Plastic shell type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217280624U true CN217280624U (en) | 2022-08-23 |
Family
ID=82855510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220294298.1U Active CN217280624U (en) | 2022-02-14 | 2022-02-14 | Plastic shell type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217280624U (en) |
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2022
- 2022-02-14 CN CN202220294298.1U patent/CN217280624U/en active Active
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