CN215771790U - Safety plug device needing manual reset - Google Patents
Safety plug device needing manual reset Download PDFInfo
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- CN215771790U CN215771790U CN202121393171.7U CN202121393171U CN215771790U CN 215771790 U CN215771790 U CN 215771790U CN 202121393171 U CN202121393171 U CN 202121393171U CN 215771790 U CN215771790 U CN 215771790U
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- temperature controller
- inner cavity
- ptc temperature
- plug device
- manual reset
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Abstract
The utility model relates to a safety plug device needing manual reset, which is characterized by comprising a PTC temperature controller and a plug body, wherein the PTC temperature controller is provided with an electrode plate, the plug body comprises an insulating shell and an electric plug pin, the insulating shell is provided with an installation inner cavity, the electric plug pin is welded on the electrode plate or the electric plug pin and the electrode plate are in a structure together, the PTC temperature controller is arranged in the installation inner cavity, and the end part of the electric plug pin penetrates outside the insulating shell. The safety plug device is provided with the PTC temperature controller, and high temperature generated between the plug and the socket can be more quickly transmitted to the PTC temperature controller, so that the PTC temperature controller can quickly and accurately act, a circuit can be quickly disconnected, the temperature is prevented from continuously rising, a fire disaster is avoided, potential safety hazards can be greatly reduced, and the safety plug device has the advantages of high reliability, long service life, strong applicability and the like.
Description
Technical Field
The utility model relates to the field of electric appliances, in particular to a plug device.
Background
At present, most of plugs and sockets for electric connection are not provided with overheating devices. When the plug and the socket are overheated due to the circuit, the circuit cannot be automatically and timely disconnected, so that the circuit is easy to continuously heat up and fire is caused, and great potential safety hazards are easily caused. For example: after the plug and the socket are aged and deformed, electric arcs are often generated between the plug and the socket, so that the situation that the plug and the socket are heated and fire disasters are caused is easily caused. Therefore, it is necessary to redesign the structure of the plug.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and the defects and provides a safety plug device needing manual reset, wherein a PTC temperature controller is arranged on the safety plug device, and high temperature generated between a plug and a socket can be more quickly transmitted to the PTC temperature controller, so that the PTC temperature controller can quickly and accurately act, a circuit can be quickly disconnected, the temperature is prevented from continuously rising, a fire disaster is avoided, and potential safety hazards can be greatly reduced.
The technical scheme of the utility model is realized as follows:
the safety plug device needing manual reset is characterized by comprising a PTC temperature controller and a plug body, wherein an electrode plate is arranged on the PTC temperature controller, the plug body comprises an insulating shell and an electric plug pin, an installation inner cavity is formed in the insulating shell, the electric plug pin is welded on the electrode plate, or the electric plug pin and the electrode plate are in a structure, the PTC temperature controller is arranged in the installation inner cavity, and the end part of the electric plug pin penetrates the insulating shell.
Preferably, the insulating shell comprises a bottom shell, a shielding cover and a plurality of screws, the mounting inner cavity is formed in the bottom shell, the shielding cover is arranged on a cavity opening of the mounting inner cavity, the end part of the electric pin penetrates through the insulating shell, and the screws penetrate through the shielding cover and then are screwed on the bottom shell.
Preferably, the wall of the installation cavity is provided with a first embedded groove, the PTC temperature controller is embedded in the first embedded groove, and the shielding cover is pressed on the PTC temperature controller.
Preferably, a reinforcing convex part is arranged on the wall of the mounting inner cavity, and the first embedded groove is formed in the reinforcing convex part.
Preferably, the inner wall of the shielding cover is provided with at least one first jacking convex strip, and the first jacking convex strip is jacked on the PTC temperature controller.
Preferably, a blocking convex part is arranged at the bottom of the installation inner cavity, a second embedded groove is formed in the blocking convex part, a limiting groove is reserved between the blocking convex part and the installation inner cavity, a third embedded groove is formed in the bottom shell, the third embedded groove and the installation inner cavity are located on the same surface of the bottom shell, two ends of the third embedded groove penetrate through the cavity wall of the installation inner cavity and the side wall of the bottom shell respectively, a limiting convex part is arranged on the side wall of the electric plug pin, one end of the electric plug pin is embedded in the second embedded groove, the limiting groove and the third embedded groove respectively, the limiting convex part is embedded in the limiting groove, and the limiting convex part is pressed against the cavity wall of the installation inner cavity and the side wall of the blocking convex part respectively.
Preferably, a second pressing convex strip is arranged on the inner wall of the shielding cover, and the second pressing convex strip is tightly pressed on the electric pins.
Preferably, a first reinforcing convex column is arranged at the bottom of the mounting inner cavity, a threaded hole is formed in the first reinforcing convex column, a second reinforcing convex column is arranged on the inner surface of the shielding cover, a sleeve hole is formed in the outer surface of the shielding cover and penetrates through the second reinforcing convex column, and the screw penetrates through the sleeve hole and then is screwed to the threaded hole.
Preferably, a limiting clamping groove is formed in the bottom shell, the limiting clamping groove and the installation inner cavity are located on the same surface of the bottom shell, and two ends of the limiting clamping groove respectively extend to the cavity wall of the installation inner cavity and the side wall of the bottom shell.
Preferably, the inner surface of the shielding cover is provided with a plurality of jacking convex points, and each jacking convex point faces to the limiting clamping groove.
The utility model has the beneficial effects that: the safety plug device comprises a PTC temperature controller and a plug body, wherein the plug body comprises an insulating shell and an electric pin, and the electric pin is welded on an electrode plate of the PTC temperature controller or is in a structure together with the electrode plate of the PTC temperature controller. Through making electric mortiser foot and electrode slice adopt the welding mode to be connected or make an organic whole, this just can be when high temperature appears between plug and socket, transmit the PTC temperature controller with high temperature fast through electric mortiser foot, electrode slice to enable the PTC temperature controller fast, accurately move, and then can reach quick break circuit, avoid the temperature to continue rising and avoid the conflagration to take place, this potential safety hazard that can greatly reduced, this safety plug device's reliability and suitability are very good. And through making the electric mortiser foot welded on the electrode plate of PTC temperature controller, perhaps make the electric mortiser foot be structure together with the electrode plate of PTC temperature controller, can reach the purpose of outage, cooling before the insulating casing is heated and damaged like this to can avoid the insulating casing to appear damaging, and then help prolonging this safety plug device's life. By adopting the PTC temperature controller with the PTC, the plug must be manually pulled off, and the PTC temperature controller can be communicated again after being cooled to a certain temperature. Therefore, after the PTC temperature controller acts at high temperature, the PTC temperature controller can always keep an off state, and the PTC temperature controller can be prevented from being repeatedly switched on and off, so that the potential safety hazard can be further reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the safety plug device of the present invention.
Fig. 2 is a schematic view of a part of the safety plug device according to the present invention.
Fig. 3 is a second partial schematic structural diagram of the safety plug device of the present invention.
Fig. 4 is a schematic structural view of the bottom case of the present invention.
Fig. 5 is a schematic structural view of the shielding cover of the present invention.
Fig. 6 is a schematic structural view of the PTC thermostat of the present invention.
Detailed Description
As shown in fig. 1 to 3, the safety plug device requiring manual reset according to the present invention includes a PTC temperature controller 1 and a plug body 2, wherein the PTC temperature controller 1 is provided with an electrode plate 11, the plug body 2 includes an insulating shell 21 and an electrical plug 22, the insulating shell 21 is provided with an installation inner cavity 211, the electrical plug 22 is welded on the electrode plate 11, or the electrical plug 22 and the electrode plate 11 are in a structure, the PTC temperature controller 1 is disposed in the installation inner cavity 211, and an end of the electrical plug 22 is inserted outside the insulating shell 21.
The safety plug device comprises a PTC temperature controller 1 and a plug body 2, wherein the plug body 2 comprises an insulating shell 21 and an electric plug pin 22, and the electric plug pin 22 is welded on an electrode plate 11 of the PTC temperature controller 1 or the electric plug pin 22 and the electrode plate 11 of the PTC temperature controller 1 are of a structure together. Through making electric mortiser foot 22 and electrode slice 11 adopt the welding mode to be connected or make an organic whole, this just can be when high temperature appears between plug and socket, through electric mortiser foot 22, electrode slice 11 transmits high temperature to PTC temperature controller 1 fast to enable PTC temperature controller 1 to move fast, accurately, and then can reach quick disconnect circuit, avoid the temperature to continue rising and avoid the conflagration to take place, this potential safety hazard that can greatly reduced, this safety plug device's reliability and suitability are very good.
And through making electric plug 22 welded on electrode slice 11 of PTC temperature controller 1, or make electric plug 22 and electrode slice 11 of PTC temperature controller 1 be structure together, can reach the purpose of outage, cooling before insulating casing 21 is heated and damages like this to can avoid insulating casing 21 to appear damaging, and then help prolonging the life of this safety plug device.
By adopting the PTC temperature controller 1 with the PTC, the plug must be manually pulled off, and the PTC temperature controller 1 can be re-connected after being cooled to a certain temperature. Therefore, after the PTC temperature controller 1 acts due to high temperature, the PTC temperature controller 1 can always keep an off state, which can prevent the PTC temperature controller 1 from being repeatedly switched on and off, thereby further reducing the potential safety hazard.
For example, when the plug and the socket generate electric arc due to poor contact, the temperature between the plug and the socket rises, and at the moment, heat can be quickly transferred to the PTC temperature controller 1 through the electric pins 22 and the electrode plates 11, so that the PTC temperature controller 1 can quickly and accurately act, a circuit can be quickly disconnected, the temperature is prevented from continuously rising, a fire disaster is prevented, potential safety hazards can be greatly reduced, and the safety plug device is very good in reliability and applicability.
The PTC block in the PTC temperature controller 1 can continuously generate heat after the movable contact piece is separated from the static contact piece, so that the bimetallic strip is always in a state of pushing open the movable contact piece through the heat. Thus, the PTC temperature controller 1 is always in an off state, and the movable contact piece can be reset only after the power supply is cut off and the PTC block is cooled. This enables the PTC temperature controller 1 to be kept in the off state all the time, which can prevent the PTC temperature controller 1 from being repeatedly turned on and off, thereby further reducing the potential safety hazard.
When the electric pins 22 and the electrode sheet 11 are of an integral structure, the thickness of the electric pins 22 is made larger than that of the electrode sheet 11. Therefore, the repeated insertion requirements of the electric plug pins 22 can be well met, the use of raw materials can be well controlled, and the manufacturing cost can be well controlled.
As shown in fig. 2, 3 and 6, the PTC temperature controller 1 is a conventional PTC temperature controller with a PTC block. For example, a PTC thermostat of the applicant's own application is used.
As shown in fig. 1 to 5, the insulating housing 21 includes a bottom shell 23, a shielding cover 24, and a plurality of screws 25, the mounting cavity 211 is opened on the bottom shell 23, the shielding cover 24 is covered on an opening of the mounting cavity 211, the ends of the electrical pins 22 are inserted outside the insulating housing 21, and the screws 25 are screwed on the bottom shell 23 after passing through the shielding cover 24. The structure of the insulating shell 21 is very simple and reliable, which not only can satisfy the installation of the PTC temperature controller 1 and the electric plug 22, but also can facilitate the maintenance of the PTC temperature controller 1 and the electric plug 22, which helps to improve the convenience of the maintenance of the safety plug device.
As shown in fig. 1 to 4, a first embedded groove 212 is formed on a wall of the mounting cavity 211, the PTC temperature controller 1 is embedded in the first embedded groove 212, and the shielding cover 24 is pressed on the PTC temperature controller 1. This contributes to improving the stability and reliability of the installation positioning of the PTC temperature controller 1, thereby contributing to further improving the reliability of the safety plug device.
As shown in fig. 4, a reinforcing protrusion 213 is provided on a wall of the mounting cavity 211, and the first fitting groove 212 is provided on the reinforcing protrusion 213. Therefore, the structural strength of the opening of the first embedding groove 212 can be improved, and the mounting inner cavity 211 can be prevented from being too large, so that the overall volume of the insulating shell 21 can be well controlled, and the application range of the safety plug device can be further widened.
As shown in fig. 5, at least one first pressing protrusion 241 is disposed on the inner wall of the shielding cover 24, and the first pressing protrusion 241 presses against the PTC temperature controller 1. Therefore, a more stable and reliable limiting effect can be formed on the PTC temperature controller 1, so that the stability and the reliability of the installation and the positioning of the PTC temperature controller 1 are further improved, and the reliability of the safety plug device is further improved.
As shown in fig. 2 to 4, a stopping convex portion 214 is provided at the bottom of the installation inner cavity 211, a second embedded groove 215 is provided on the stopping convex portion 214, a limiting groove 216 is reserved between the stopping convex portion 214 and the installation inner cavity 211, a third embedded groove 231 is provided on the bottom shell 23, the third embedded groove 231 and the installation inner cavity 211 are located on the same surface of the bottom shell 23, two ends of the third embedded groove 231 respectively penetrate through the cavity wall of the installation inner cavity 211 and the side wall of the bottom shell 23, a limiting convex portion 221 is provided on the side wall of the electrical plug 22, one end of the electrical plug 22 is respectively embedded in the second embedded groove 215, the limiting groove 216 and the third embedded groove 231, the limiting convex portion 221 is embedded in the limiting groove 216, and the limiting convex portion 221 is respectively pressed against the cavity wall of the installation inner cavity 211 and the side wall of the stopping convex portion 214. Therefore, a more stable and reliable limiting effect can be formed on the electric plug pins 22, the stability of installation and positioning of the electric plug pins 22 can be improved, the impact resistance of the electric plug pins 22 can also be improved, the stability and the reliability of the plug-in process of the safety plug device can be improved, and the service life of the safety plug device can be prolonged.
As shown in fig. 1 to fig. 3 and fig. 5, a second pressing rib 242 is disposed on the inner wall of the shielding cover 24, and the second pressing rib 242 presses against the electrical plug 22. This can provide a more reliable limit for the electrical pins 22, which further improves the stability and reliability of the installation and positioning of the electrical pins 22, and thus further improves the reliability of the safety plug device.
As shown in fig. 1 to 5, a first reinforcing protrusion 217 is disposed at a bottom of the mounting cavity 211, a threaded hole 218 is formed in the first reinforcing protrusion 217, a second reinforcing protrusion 243 is disposed on an inner surface of the shielding cover 24, a sleeve hole 244 is formed in an outer surface of the shielding cover 24, the sleeve hole 244 penetrates through the second reinforcing protrusion 243, and the screw 25 is screwed to the threaded hole 218 after penetrating through the sleeve hole 244. This contributes to an increase in the structural strength of the place where the screw 25 is inserted and screwed, thereby contributing to a further increase in the reliability and service life of the safety plug device.
As shown in fig. 2 to 4, the bottom shell 23 is provided with a limiting slot 232, the limiting slot 232 and the installation inner cavity 211 are located on the same surface of the bottom shell 23, and two ends of the limiting slot 232 respectively extend to the cavity wall of the installation inner cavity 211 and the side wall of the bottom shell 23. The limiting clamping groove 232 can be used for arranging and limiting the wires, and therefore the applicability of the safety plug device is further improved.
As shown in fig. 1, 4 and 5, a plurality of pressing protrusions 245 are disposed on the inner surface of the shielding cover 24, and each pressing protrusion 245 faces the limiting slot 232. The pressing bumps 245 can press the wires in the limiting clamping grooves 232, so that the reliability of assembling the wires with the safety plug device is improved.
As shown in fig. 2, 3 and 5, in the actual manufacturing process, two electrode pads 11 are provided on the PTC temperature controller 1, two electrical pins 22 are provided on the insulating housing 21, and one of the electrical pins 22 is welded with one of the electrode pads 11 of the PTC temperature controller 1 or directly integrated with the same. As shown in fig. 2 and 3, the two electrical pins 22 are mounted on the insulating housing 21 using the same assembly structure. This allows both electrical pins 22 to be mounted on the insulating housing 21 very stably and reliably. As shown in fig. 2 and 3, in the actual use process, two wires 20 included in the same insulating glue 10 are needed, the insulating glue 10 is embedded in the limiting clamping groove 232, one of the wires 20 is welded to the other electrode tab 11 of the PTC temperature controller 1, and the other wire 20 is welded to the other electrical pin 22. Thus, a plug structure satisfying the electrical connection can be constructed.
Claims (10)
1. A safety plug device needing manual reset is characterized in that: the plug comprises a PTC temperature controller (1) and a plug body (2), wherein an electrode plate (11) is arranged on the PTC temperature controller (1), the plug body (2) comprises an insulating shell (21) and an electric plug pin (22), an installation inner cavity (211) is formed in the insulating shell (21), the electric plug pin (22) is welded on the electrode plate (11) or the electric plug pin (22) and the electrode plate (11) are of a structure, the PTC temperature controller (1) is arranged in the installation inner cavity (211), and the end part of the electric plug pin (22) is arranged outside the insulating shell (21) in a penetrating mode.
2. A safety plug device requiring manual reset according to claim 1, wherein: the insulating shell (21) comprises a bottom shell (23), a shielding cover (24) and a plurality of screws (25), the mounting inner cavity (211) is formed in the bottom shell (23), the shielding cover (24) is arranged on a cavity opening of the mounting inner cavity (211) in a covering mode, the end portion of the electric plug pin (22) penetrates through the insulating shell (21), and each screw (25) penetrates through the shielding cover (24) and then is screwed on the bottom shell (23).
3. A safety plug device requiring manual reset according to claim 2, wherein: the wall of the installation inner cavity (211) is provided with a first embedded groove (212), the PTC temperature controller (1) is embedded in the first embedded groove (212), and the shielding cover (24) is pressed on the PTC temperature controller (1).
4. A safety plug device requiring manual reset according to claim 3, wherein: the wall of the installation inner cavity (211) is provided with a reinforcing convex part (213), and the first embedded groove (212) is arranged on the reinforcing convex part (213).
5. A safety plug device requiring manual reset according to claim 2, wherein: at least one first jacking convex strip (241) is arranged on the inner wall of the shielding cover (24), and the first jacking convex strip (241) is jacked on the PTC temperature controller (1).
6. A safety plug device requiring manual reset according to claim 2, wherein: a resisting convex part (214) is arranged at the bottom of the installation inner cavity (211), a second embedded groove (215) is formed in the resisting convex part (214), a limiting groove (216) is reserved between the resisting convex part (214) and the installation inner cavity (211), a third embedded groove (231) is formed in the bottom shell (23), the third embedded groove (231) and the installation inner cavity (211) are located on the same surface of the bottom shell (23), two ends of the third embedded groove (231) respectively penetrate through the cavity wall of the installation inner cavity (211) and the side wall of the bottom shell (23), a limiting convex part (221) is arranged on the side wall of the electric plug pin (22), one end of the electric plug pin (22) is respectively embedded in the second embedded groove (215), the limiting groove (216) and the third embedded groove (231), the limiting convex part (221) is embedded in the limiting groove (216), and the limiting convex part (221) respectively pushes against the cavity wall of the installation inner cavity (211) and presses against the limiting convex part (221), Resists the side wall of the convex part (214).
7. The safety plug device requiring manual reset of claim 6, wherein: and a second jacking convex strip (242) is arranged on the inner wall of the shielding cover (24), and the second jacking convex strip (242) is tightly pressed on the electric pins (22).
8. A safety plug device requiring manual reset according to claim 2, wherein: the mounting structure is characterized in that a first reinforcing convex column (217) is arranged at the bottom of the mounting inner cavity (211), a threaded hole (218) is formed in the first reinforcing convex column (217), a second reinforcing convex column (243) is arranged on the inner surface of the shielding cover (24), a sleeve penetrating hole (244) is formed in the outer surface of the shielding cover (24), the sleeve penetrating hole (244) penetrates through the second reinforcing convex column (243), and the screw (25) penetrates through the sleeve penetrating hole (244) and then is screwed to the threaded hole (218).
9. A safety plug device requiring manual reset according to claim 2, wherein: and the bottom shell (23) is provided with a limiting clamping groove (232), the limiting clamping groove (232) and the installation inner cavity (211) are positioned on the same surface of the bottom shell (23), and two ends of the limiting clamping groove (232) respectively extend to the cavity wall of the installation inner cavity (211) and the side wall of the bottom shell (23).
10. A safety plug device requiring manual reset according to claim 9, wherein: the inner surface of the shielding cover (24) is provided with a plurality of jacking convex points (245), and each jacking convex point (245) faces to the limiting clamping groove (232).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393171.7U CN215771790U (en) | 2021-06-22 | 2021-06-22 | Safety plug device needing manual reset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393171.7U CN215771790U (en) | 2021-06-22 | 2021-06-22 | Safety plug device needing manual reset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215771790U true CN215771790U (en) | 2022-02-08 |
Family
ID=80101694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121393171.7U Active CN215771790U (en) | 2021-06-22 | 2021-06-22 | Safety plug device needing manual reset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215771790U (en) |
-
2021
- 2021-06-22 CN CN202121393171.7U patent/CN215771790U/en active Active
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