CN110379688A - For DC source output short circuit protective device - Google Patents
For DC source output short circuit protective device Download PDFInfo
- Publication number
- CN110379688A CN110379688A CN201910572810.7A CN201910572810A CN110379688A CN 110379688 A CN110379688 A CN 110379688A CN 201910572810 A CN201910572810 A CN 201910572810A CN 110379688 A CN110379688 A CN 110379688A
- Authority
- CN
- China
- Prior art keywords
- porcelain
- fixed
- fuse
- output short
- protective device
- Prior art date
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/22—Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/47—Means for cooling
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses be used for DC source output short circuit protective device; including porcelain seat, porcelain lid and manual handle; the left and right sides is adhesively fixed with insulative pipe sleeve inside the porcelain seat; and runs through inside insulative pipe sleeve and be enclosed with connection conductor; elastic connecting component is provided on the inside of the connection conductor; the porcelain seat inner wall, which connects, is fixed with fixed pedestal; and preformed groove is offered inside fixed pedestal; the porcelain lid is placed in fixed pedestal upper end; and porcelain outer side of lid is adhesively fixed with rubber pad, the manual control handle is bonded and fixed to porcelain and covers end.This is used for DC source output short circuit protective device; the connection that fuse passes through metal spring; elastic telescopic can be carried out in a certain range; it avoids due to temperature; fuse expand with heat and contract with cold autonomous fracture the phenomenon that appearance; ensure that fuse failure is that lead body temperature due to connection excessively high and fuse, circuit is protected in DC power supply output short-circuit, improves the reliability that the device uses.
Description
Technical field
The present invention relates to DC power supply output protecting device technical fields, particularly for DC power supply output short circuit protection
Device.
Background technique
The main reason for short trouble is caused by leading to insulation damages because of overheat, aging, overvoltage, mechanical damage, directly
Power source short-circuit protection apparatus is flowed, first is that avoiding power circuit that short trouble occurs, second is that protective device opens when short circuit current occurs
It is dynamic, and with the selectivity of time limit safety action, make circuit breaker trip or provide alarm signal, DC power supply there are positive and negative two electricity
Pole, positive current potential is high, and the current potential of cathode is low, after two electrodes and circuit communication, can make to remain permanent between circuit both ends
Fixed potential difference, to be formed in external circuit by the electric current of anode to cathode, DC power supply is a kind of energy conversion device, it
The energy of other forms is converted to electric energy supply circuit, to maintain the steady of electric current to flow, there are many type of DC power supply, no
In the DC power supply of same type, the property of non-electrostatic force is different, and the process of energy conversion is also different, (such as dry in chemical cell
Battery, battery etc.) in, non-electrostatic force is dissolution with ion and the chemical action that deposition process is associated, and chemical cell is put
When electric, chemical energy is converted into electric energy and Joule heat in temperature difference power supply (such as metal couple, semiconductor thermocouple), non-
Electrostatic force is the diffusion being associated with the concentration difference of temperature difference and electronics, when the outside circuit with power of temperature difference power supply, heat
It can be partially converted into electric energy, in dc generator, non-electrostatic force is electromagnetic induction effect, when dc generator is powered, machine
Tool can be converted into electric energy and Joule heat, and in photocell, non-electrostatic force is the effect of photovoltaic effect, when photocell is powered,
Luminous energy is converted into electric energy and Joule heat, and the water flow of steady cannot be maintained by depending merely on water level difference between high and low, and constantly by means of water pump
Water is sent to the water flow that eminence can maintain certain water-head and form steady by lower, it is similar, it depends merely on charge and is produced
Raw electrostatic field cannot maintain the electric current of steady, and by means of DC power supply, so that it may it is (referred to as " non-using non-electrostatic effect
Electrostatic force ") return to positive charge at the higher anode of current potential through power source internal by the lower cathode of current potential, to maintain two
Potential difference between electrode, to form the electric current of steady, the non-electrostatic force in DC power supply is to be directed toward anode by cathode, when
After DC power supply and external circuit are connected, outside power supply (external circuit), due to the promotion of electric field force, formed by anode to cathode
Electric current, and at power source internal (interior circuit), the effect of non-electrostatic force then makes electric current flow to anode by cathode, to make the stream of charge
The dynamic circulation for forming closure.
DC power supply output protecting device in the market, in fuse of the replacement due to circuit fusing, operating procedure is more
Complexity, when replacement, are more time-consuming and laborious, and during fuse is used for a long time, easily due to temperature change is excessive or device in temperature it is excessively high,
There is a phenomenon where expand with heat and contract with cold or independently fuse occur it is unexpected be broken, influence the DC power supply output protecting device use ask
Topic, for this purpose, it is proposed that being used for DC source output short circuit protective device.
Summary of the invention
The purpose of the present invention is to provide DC source output short circuit protective device is used for, to solve in above-mentioned background technique
The DC power supply output protecting device in the market proposed, in fuse of the replacement due to circuit fusing, operating procedure is more multiple
Miscellaneous, when replacement, is more time-consuming and laborious, and during fuse is used for a long time, easily due to temperature change is excessive or device in temperature it is excessively high, hair
It is raw expand with heat and contract with cold or independently fuse there is unexpected the phenomenon that being broken, influence the DC power supply output protecting device use ask
Topic.
To achieve the above object, the invention provides the following technical scheme: being used for DC source output short circuit protective device, packet
Porcelain seat, porcelain lid and manual handle are included, the left and right sides is adhesively fixed with insulative pipe sleeve inside the porcelain seat, and passes through inside insulative pipe sleeve
It wears and is enclosed with connection conductor, be provided with elastic connecting component on the inside of the connection conductor, the porcelain seat inner wall, which connects, is fixed with fixation
Pedestal, and preformed groove is offered inside fixed pedestal, the porcelain lid is placed in fixed pedestal upper end, and porcelain outer side of lid is adhesively fixed
There is rubber pad, the manual control handle is bonded and fixed to porcelain and covers end, and fixed screw is provided through inside porcelain lid, the porcelain seat
Internal rear and front end is provided with radiating subassembly.
Preferably, the elastic connecting component includes metal spring and fuse, and metal spring side be intertwined and connected have it is molten
Silk.
Preferably, the fuse constitutes elastic construction with conductor is connect by metal spring, and connects conductor and pass through welding
With metal spring being integrally formed structure.
Preferably, the porcelain lid constitutes detaching structure by fixed screw and fixed pedestal, and between fixed pedestal about
The cross central line of porcelain seat is symmetric, and insulative pipe sleeve and connection conductor is distributed in porcelain seat internal symmetry.
Preferably, the radiating subassembly includes heat sink, heat release hole and strainer, and heat dissipation is offered inside the heat sink
Hole, and strainer is adhesively fixed on the inside of heat sink.
Preferably, the heat release hole is in laterally uniform about the inside of heat sink, and heat sink passes through bonding and porcelain
Seat is connected.
Compared with prior art, beneficial effects of the present invention are as follows:
1, fuse of the present invention can be carried out elastic telescopic in a certain range, be avoided due to gas by the connection of metal spring
Warm reason, fuse expand with heat and contract with cold autonomous fracture the phenomenon that appearance, it is ensured that fuse failure be due to connection lead body temperature it is excessively high and
Fusing, protects circuit in DC power supply output short-circuit, improves the reliability that the device uses.
2, the present invention takes out fixed screw in porcelain lid and fixed pedestal, then holds manual handle, can be placed on porcelain
It is taken out on the inside of fixed pedestal, i.e., the fuse of replaceable metal spring wrapped inside is very convenient, improves using the flexible of the device
Property and convenience.
3, porcelain seat of the present invention can be radiated by the heat release hole opened up in heat sink, avoid the excessively high fuse of temperature in porcelain seat
The phenomenon that unexpected fusing, occurs, and improves the reliability for using the device, and the strainer that is adhesively fixed on the inside of heat sink, can ensure
It under the premise of porcelain seat passes through heat release hole, avoids dust is water stain from entering in porcelain seat, reduces the period for cleaning the device and raising should
The practicability of device.
Detailed description of the invention
Fig. 1 is overlooking structure diagram of the present invention；
Fig. 2 is to overlook anatomy structural schematic diagram after the present invention removes porcelain lid；
Fig. 3 is partial side structural schematic diagram of the present invention；
Fig. 4 is enlarged structure schematic diagram at A in Fig. 2 of the present invention.
In figure: 1, porcelain seat；2, insulative pipe sleeve；3, conductor is connected；4, elastic connecting component；401, metal spring；402, it melts
Silk；5, fixed pedestal；6, preformed groove；7, porcelain lid；8, rubber pad；9, manual handle；10, fixed screw；11, radiating subassembly；
1101, heat sink；1102, heat release hole；1103, strainer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: for DC source output short circuit protective device, including
Porcelain seat 1, insulative pipe sleeve 2, connection conductor 3, elastic connecting component 4, metal spring 401, fuse 402, fixed pedestal 5, preformed groove
6, porcelain lid 7, rubber pad 8, manual handle 9, fixed screw 10, radiating subassembly 11, heat sink 1101, heat release hole 1102 and strainer
1103, the 1 inside left and right sides of porcelain seat is adhesively fixed with insulative pipe sleeve 2, and runs through inside insulative pipe sleeve 2 and be enclosed with connection conductor 3,
Elastic connecting component 4 is provided on the inside of connection conductor 3, elastic connecting component 4 includes metal spring 401 and fuse 402, and metal
401 side of spring, which is intertwined and connected, fuse 402, and fuse 402 constitutes elastic construction with conductor 3 is connect by metal spring 401, and
Conductor 3 is connected by welding and 401 being integrally formed structure of metal spring, fuse 402 passes through the connection of metal spring 401, can
Carry out elastic telescopic in a certain range, avoid due to temperature, fuse 402 expand with heat and contract with cold autonomous fracture the phenomenon that appearance,
Ensure that the fusing of fuse 402 is since temperature is excessively high and fuse in connection conductor 3, in DC power supply output short-circuit to circuit progress
Protection, improves the reliability that the device uses；
1 inner wall of porcelain seat, which connects, is fixed with fixed pedestal 5, and preformed groove 6 is offered inside fixed pedestal 5, and porcelain lid 7 is placed in solid
Determine 5 upper end of pedestal, and be adhesively fixed with rubber pad 8 on the outside of porcelain lid 7, porcelain lid 7 is torn open by fixed screw 10 and the composition of fixed pedestal 5
Structure is unloaded, and the cross central line between fixed pedestal 5 about porcelain seat 1 is symmetric, and 1 internal symmetry of porcelain seat is distributed with
Insulative pipe sleeve 2 and connection conductor 3, fixed screw 10 is taken out in porcelain lid 7 and fixed pedestal 5, then holds manual handle 9,
Porcelain lid 7 can be taken out on the inside of fixed pedestal 5, i.e., the fuse 402 of replaceable 401 wrapped inside of metal spring is very convenient, mentions
Height uses the flexibility and convenience of the device；
Manual handle 9 is bonded and fixed to 7 upper end of porcelain lid, and fixed screw 10 is provided through inside porcelain lid 7, in porcelain seat 1
Portion rear and front end is provided with radiating subassembly 11, and radiating subassembly 11 includes heat sink 1101, heat release hole 1102 and strainer 1103, heat dissipation
Offer heat release hole 1102 inside plate 1101, and be adhesively fixed with strainer 1103 on the inside of heat sink 1101, heat release hole 1102 about
The inside of heat sink 1101 is in laterally uniform, and heat sink 1101 is connected by bonding with porcelain seat 1, is glued on the inside of porcelain seat 1
Fixed heat sink 1101 is connect, porcelain seat 1 can be radiated by the heat release hole 1102 opened up in heat sink 1101, be avoided in porcelain seat 1
The phenomenon that excessively high fuse 402 of temperature surprisingly fuses occurs, and improves the reliability for using the device, and glue on the inside of heat sink 1101
Fixed strainer 1103 is connect, can avoid dust is water stain to enter in porcelain seat 1 under the premise of ensuring porcelain seat 1 by heat release hole 1102, subtract
The period of the device is cleaned less and improves the practicability of the device.
Working principle: this is connected on the inside of conductor 3 first for DC source output short circuit protective device and is provided with bullet
Property connection component 4, fuse 402 can carry out elastic telescopic by the connection of metal spring 401 in a certain range, avoid due to
Temperature reason, fuse 402 expand with heat and contract with cold autonomous fracture the phenomenon that appearance, it is ensured that fuse 402 fusing be due to connection conductor 3 in temperature
It spends high and fuses, circuit is protected in DC power supply output short-circuit, and insulative pipe sleeve is distributed in 1 internal symmetry of porcelain seat
Fixed screw 10 is taken out in the preformed groove 6 opened up in porcelain lid 7 and fixed pedestal 5, is then held with connection conductor 3 by 2
Outside can be adhesively fixed with the porcelain lid 7 of rubber pad 8, taken out on the inside of fixed pedestal 5 by manual handle 9, i.e., replaceable metal elastic
The fuse 402 of 401 wrapped inside of spring, and 1 inside rear and front end of porcelain seat is provided with radiating subassembly 11, porcelain seat 1 can pass through heat sink
The heat release hole 1102 opened up in 1101 radiates, and avoids unexpected the phenomenon that the fusing appearance of the excessively high fuse 402 of temperature in porcelain seat 1,
The reliability for using the device, and the strainer 1103 that is adhesively fixed on the inside of heat sink 1101 are improved, porcelain seat 1 can ensured by dissipating
It under the premise of hot hole 1102, avoids dust is water stain from entering in porcelain seat 1, reduces the period for cleaning the device and improve the device
It is practical, the use process for being entirely used for DC source output short circuit protective device is completed like this.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. being used for DC source output short circuit protective device, including porcelain seat (1), porcelain lid (7) and manual handle (9), feature exists
In: the internal left and right sides of the porcelain seat (1) is adhesively fixed with insulative pipe sleeve (2), and runs through the company of being enclosed with inside insulative pipe sleeve (2)
It connects conductor (3), is provided with elastic connecting component (4) on the inside of the connection conductor (3), porcelain seat (1) inner wall, which connects, to be fixed with
To determine pedestal (5), and is offered preformed groove (6) inside fixed pedestal (5), the porcelain lid (7) is placed in fixed pedestal (5) upper end,
And be adhesively fixed with rubber pad (8) on the outside of porcelain lid (7), the manual control handle (9) is bonded and fixed to porcelain lid (7) upper end, and porcelain lid
(7) internal to be provided through fixed screw (10), the internal rear and front end of the porcelain seat (1) is provided with radiating subassembly (11).
2. according to claim 1 be used for DC source output short circuit protective device, it is characterised in that: the elastic connection
Component (4) includes metal spring (401) and fuse (402), and metal spring (401) side is intertwined and connected fuse (402).
3. according to claim 2 be used for DC source output short circuit protective device, it is characterised in that: the fuse
(402) elastic construction is constituted with conductor (3) are connect by metal spring (401), and connects conductor (3) and passes through welding and metal elastic
Spring (401) being integrally formed structure.
4. according to claim 1 be used for DC source output short circuit protective device, it is characterised in that: the porcelain lid (7)
Detaching structure, and the transverse direction between fixed pedestal (5) about porcelain seat (1) are constituted by fixed screw (10) and fixed pedestal (5)
Center line is symmetric, and insulative pipe sleeve (2) and connection conductor (3) is distributed in porcelain seat (1) internal symmetry.
5. according to claim 1 be used for DC source output short circuit protective device, it is characterised in that: the radiating subassembly
(11) include heat sink (1101), heat release hole (1102) and strainer (1103), offer heat dissipation inside the heat sink (1101)
Hole (1102), and strainer (1103) are adhesively fixed on the inside of heat sink (1101).
6. according to claim 5 be used for DC source output short circuit protective device, it is characterised in that: the heat release hole
It (1102) is in laterally uniform about the inside of heat sink (1101), and heat sink (1101) passes through bonding and porcelain seat (1) phase
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572810.7A CN110379688B (en) | 2019-06-27 | 2019-06-27 | Short-circuit protection device for output of direct-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572810.7A CN110379688B (en) | 2019-06-27 | 2019-06-27 | Short-circuit protection device for output of direct-current power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110379688A true CN110379688A (en) | 2019-10-25 |
| CN110379688B CN110379688B (en) | 2023-01-24 |
Family
ID=68251111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910572810.7A Active CN110379688B (en) | 2019-06-27 | 2019-06-27 | Short-circuit protection device for output of direct-current power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110379688B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489943A (en) * | 2020-04-07 | 2020-08-04 | 江苏开放大学（江苏城市职业学院） | Plug-in fuse and installation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713626Y (en) * | 2003-07-06 | 2005-07-27 | 沈俊国 | Elastic compensating tension resistant drop insurance |
| CN208422821U (en) * | 2018-06-29 | 2019-01-22 | 浙江正泰机电电气有限公司 | A kind of disconnecting switch fuse group with shield |
| CN208538792U (en) * | 2018-05-14 | 2019-02-22 | 宏川达电子（深圳）有限公司 | A kind of push-in fuse base |
-
2019
- 2019-06-27 CN CN201910572810.7A patent/CN110379688B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713626Y (en) * | 2003-07-06 | 2005-07-27 | 沈俊国 | Elastic compensating tension resistant drop insurance |
| CN208538792U (en) * | 2018-05-14 | 2019-02-22 | 宏川达电子（深圳）有限公司 | A kind of push-in fuse base |
| CN208422821U (en) * | 2018-06-29 | 2019-01-22 | 浙江正泰机电电气有限公司 | A kind of disconnecting switch fuse group with shield |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489943A (en) * | 2020-04-07 | 2020-08-04 | 江苏开放大学（江苏城市职业学院） | Plug-in fuse and installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110379688B (en) | 2023-01-24 |
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