CN211556240U - Power line plug capable of preventing fire - Google Patents
Power line plug capable of preventing fire Download PDFInfo
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- CN211556240U CN211556240U CN202020577767.1U CN202020577767U CN211556240U CN 211556240 U CN211556240 U CN 211556240U CN 202020577767 U CN202020577767 U CN 202020577767U CN 211556240 U CN211556240 U CN 211556240U
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Abstract
The utility model provides a prevent power cord plug on fire, include: live wire inserted sheet, zero line inserted sheet, ground wire inserted sheet and connecting wire on plug body, the plug body, including live wire connecting wire, zero line connecting wire and ground wire connecting wire in the connecting wire, its characteristics are: a temperature switch is arranged in the plug body, and the contact of the temperature switch is connected in series between the live wire insertion piece and the connecting wire or/and between the zero wire insertion piece and the connecting wire. The plug body includes the bottom plate, live wire inserted sheet, zero line inserted sheet and ground wire inserted sheet are fixed on the bottom plate of plug body, and temperature switch, live wire connecting wire, zero line connecting wire and ground wire connecting wire's wiring end all encapsulates inside the plug body. The temperature switch is externally provided with a shell. The protection device has the overheat power-off protection function, and has the advantages of simple and compact structure, convenient processing and manufacturing and low cost.
Description
Technical Field
The utility model belongs to the technical field of general electrical apparatus, a improve of power cord is related to, a prevent power cord plug on fire specifically says so.
Background
The existing power line plug comprises a plug and a connecting line, wherein three inserting pieces of a live wire, a zero line and a ground wire are arranged on the plug, one end of the connecting line is connected with the plug, the other end of the connecting line is used for connecting a load (such as an electric appliance like an electric water heater), the power line plug only plays a role in connecting the load and a power supply, and no technical measures are provided in the plug and the connecting line to guarantee whether the plug is matched with the load carried at the back or not. In the actual use process, because the overload and overheat protection function is not provided, when the load is overlarge, the plug can generate heat, when the load is serious, the plug and the connected load electrical appliance can be burnt out, even personal safety accidents or fire disasters can be caused, and the consequences are very serious. Therefore, the fireproof power line is suitable for operation.
In the existing fireproof power line plug, a temperature sensor is implanted in the plug, an execution device is arranged at the joint of the plug and a connecting line, when the temperature sensor detects that the plug is high in temperature, a signal is sent to the following execution device, and the execution device disconnects the power line. Although the scheme can realize the fireproof function, the manufacturing cost of the power line plug is increased, and the size of the executing device is larger, so that the using effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve the above-mentioned problem that prior art exists, provide a prevent power cord plug on fire, have overheated outage protect function, and its simple structure, compactness, processing preparation is convenient, and is with low costs.
The utility model aims at realizing through the following technical scheme:
a fire resistant power cord plug comprising: live wire inserted sheet, zero line inserted sheet, ground wire inserted sheet and connecting wire on plug body, the connecting wire is interior including live wire connecting wire, zero line connecting wire and ground wire connecting wire, its characterized in that the inside temperature switch that sets up of plug body, temperature switch's contact is established ties between live wire inserted sheet and the connecting wire or/and between zero line inserted sheet and the connecting wire.
The improvement of the technical scheme is as follows: the plug body includes the bottom plate, live wire inserted sheet, zero line inserted sheet and ground wire inserted sheet are fixed on the bottom plate of plug body, temperature switch, live wire connecting wire, zero line connecting wire and ground wire connecting wire's wiring end all encapsulate inside the plug body.
The technical scheme is further improved as follows: the temperature switch is externally provided with a shell.
The first improvement of the technical scheme is as follows: the temperature switch is a normally closed single-contact temperature switch, and a normally closed contact of the temperature switch is connected between the live wire insertion piece and the live wire connecting line or between the zero line insertion piece and the zero line connecting line in series.
The second improvement of the technical scheme is as follows: the temperature switch be two contact temperature switch of normal close formula, a normally closed contact establishes ties between live wire inserted sheet and live wire connecting wire, another normally closed contact establishes ties between zero line inserted sheet and zero line connecting wire.
Compared with the prior art, the utility model the advantage be with positive effect:
1. the utility model arranges the temperature switch in the plug body, when the plug generates heat due to overlarge load, the temperature switch directly cuts off the connecting line, thereby cutting off the load, so that the plug does not have current to pass through any more, and the plug is prevented from burning out or causing fire;
2. the utility model is provided with the outer shell outside the temperature switch, thus not only protecting the temperature switch itself and preventing deformation during packaging, but also avoiding the temperature switch from touching the adjacent wiring end to avoid failure;
3. the structure is simple and compact, and the temperature detection and disconnection can be realized by only one component; the plug is simple to process and manufacture, the production process of the existing plug is basically not changed, and the manufacturing cost is low. The commonality is good, convenient to use, directly uses the utility model discloses a power cord plug replace current power cord can, need not change other parts basically.
Drawings
Fig. 1 is a schematic view of the overall structure of a fire-proof power cord plug of the present invention;
FIG. 2 is a schematic view of the connection structure in the interior of a fire-proof power cord plug of the present invention;
FIG. 3 is a schematic view of the present invention showing a temperature switch with an outer housing inside a fire-resistant power cord plug;
FIG. 4 is an electrical schematic diagram of a single contact temperature switch embodiment of a fire resistant power cord plug of the present invention;
fig. 5 is an electrical schematic diagram of an embodiment of a dual-contact temperature switch of a fire resistant power cord plug of the present invention.
The reference numbers in the figures are: 1-plug body, 2-ground wire plug, 3-live wire plug, 4-zero line plug, 5-power lead, 5.1-zero line, 5.2-ground wire, 5.3-live wire, 6-temperature control switch and 7-shell.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, an embodiment of the utility model relates to a power cord plug for preventing fire, including: the plug comprises a plug body 1, and a live wire inserting sheet 2, a zero line inserting sheet 3, a ground wire inserting sheet 4 and a connecting wire 5 which are arranged on the plug body 1, wherein the connecting wire 5 comprises a live wire connecting wire 5.3, a zero line connecting wire 5.1 and a ground wire connecting wire 5.2, a temperature switch 6 is arranged inside the plug body 1, and a contact of the temperature switch 6 is connected in series between the live wire inserting sheet 2 and the connecting wire 5 or/and between the zero line inserting sheet 3 and the connecting wire 5.
Specifically, the method comprises the following steps: plug body 1 includes the bottom plate, and live wire inserted sheet 2, zero line inserted sheet 3 and ground wire inserted sheet 4 are fixed on plug body 1's bottom plate, and temperature switch 6, live wire connecting wire L5.3, zero line connecting wire N5.1 and ground wire connecting wire 5.2's wiring end all encapsulates inside plug body 1.
Referring to fig. 3, in order to protect the temperature switch 6, a housing 7 is provided outside the temperature switch 6, so that the temperature switch 6 itself can be protected from deformation during packaging, and the temperature switch 6 can be prevented from touching an adjacent terminal to prevent malfunction.
Referring to fig. 2 and 4, the temperature switch 6 is a normally closed single-contact temperature switch, a normally closed contact of the temperature switch is connected in series between the live wire inserting piece 2 and the live wire connecting line L5.3, when the temperature of the plug is too high, the normally closed contact of the temperature switch 6 is disconnected, the live wire connecting line L5.3 is cut off, and the load loses power. The normally closed contact of the temperature switch 6 can also be connected in series between the zero line insert 3 and the zero line connecting wire N5.1.
Referring to fig. 2 and 5, the temperature switch 6 is a normally closed type double-contact temperature switch, one normally closed contact is connected in series between the live wire insertion piece 2 and the live wire connecting line L5.3, and the other normally closed contact is connected in series between the zero line insertion piece 3 and the zero line connecting line N5.1. When the temperature of the plug is too high, the two normally closed contacts of the temperature switch 6 are disconnected, the live wire connecting wire L5.3 and the zero wire connecting wire N5.1 are simultaneously cut off, and the load loses power. The dual-contact temperature switch described above may also be replaced with two single-contact temperature switches.
The disconnection temperature of a temperature switch on the market is usually between 40 ℃ and 180 ℃, the current is 10A, 16A and the like, and the matched temperature switch 6 and the connecting wire 5 with the suitable wire core sectional area can be selected according to the load specification to manufacture fireproof power wires with different specifications.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can make changes, modifications, additions or substitutions within the scope of the present invention, which also falls into the protection scope of the present invention.
Claims (7)
1. A fire resistant power cord plug comprising: live wire inserted sheet, zero line inserted sheet, ground wire inserted sheet and connecting wire on plug body, the connecting wire is interior including live wire connecting wire, zero line connecting wire and ground wire connecting wire, its characterized in that the inside temperature switch that sets up of plug body, temperature switch's contact is established ties between live wire inserted sheet and the connecting wire or/and between zero line inserted sheet and the connecting wire.
2. The fire-resistant power cord plug as claimed in claim 1, wherein the plug body includes a bottom plate, the live wire insertion piece, the neutral wire insertion piece and the ground wire insertion piece are fixed on the bottom plate of the plug body, and the terminals of the temperature switch, the live wire connecting wire, the neutral wire connecting wire and the ground wire connecting wire are all encapsulated inside the plug body.
3. The fireproofed power cord plug as claimed in claim 1 or 2, wherein a housing is provided outside said temperature switch.
4. The fire-resistant power cord plug as claimed in claim 1 or 2, wherein said temperature switch is a normally closed single contact temperature switch, and its normally closed contact is connected in series between the live wire plug and the live wire connection line or between the neutral wire plug and the neutral wire connection line.
5. The fire-resistant power cord plug as claimed in claim 3, wherein said temperature switch is a normally closed single contact temperature switch, and said normally closed contact is connected in series between said live wire plug and said live wire connection line or between said neutral wire plug and said neutral wire connection line.
6. The fire-resistant power cord plug as claimed in claim 1 or 2, wherein the temperature switch is a normally closed type double-contact temperature switch, one normally closed contact is connected in series between the live wire plug and the live wire connecting wire, and the other normally closed contact is connected in series between the neutral wire plug and the neutral wire connecting wire.
7. The fire-resistant power cord plug as claimed in claim 3, wherein said temperature switch is a normally closed dual contact temperature switch, one normally closed contact being connected in series between the live wire blade and the live wire connecting wire, the other normally closed contact being connected in series between the neutral wire blade and the neutral wire connecting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020577767.1U CN211556240U (en) | 2020-04-17 | 2020-04-17 | Power line plug capable of preventing fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020577767.1U CN211556240U (en) | 2020-04-17 | 2020-04-17 | Power line plug capable of preventing fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211556240U true CN211556240U (en) | 2020-09-22 |
Family
ID=72495667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020577767.1U Active CN211556240U (en) | 2020-04-17 | 2020-04-17 | Power line plug capable of preventing fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211556240U (en) |
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2020
- 2020-04-17 CN CN202020577767.1U patent/CN211556240U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fire proof power cord plug Effective date of registration: 20220124 Granted publication date: 20200922 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: PCE TECHNOLOGY (QINGDAO) CO.,LTD. Registration number: Y2022370010015 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221128 Granted publication date: 20200922 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: PCE TECHNOLOGY (QINGDAO) CO.,LTD. Registration number: Y2022370010015 |