CN220420419U - Automatic voltage switching structure - Google Patents
Automatic voltage switching structure Download PDFInfo
- Publication number
- CN220420419U CN220420419U CN202321838900.4U CN202321838900U CN220420419U CN 220420419 U CN220420419 U CN 220420419U CN 202321838900 U CN202321838900 U CN 202321838900U CN 220420419 U CN220420419 U CN 220420419U
- Authority
- CN
- China
- Prior art keywords
- dry powder
- voltage
- protection casing
- storage box
- protective cover
- 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.)
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- 239000000843 powder Substances 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Patch Boards (AREA)
Abstract
The utility model discloses a voltage automatic switching structure which comprises an insulating protective cover and a voltage identifier, wherein the voltage identifier is integrally arranged in the insulating protective cover, mounting hole sites are formed in the middle of the top end of the insulating protective cover, open grooves are formed in the middle of two sides of the insulating protective cover, crystal ends are arranged in the two open grooves, protective covers are arranged at one ends of the two open grooves, conical sleeves are arranged at round holes in the middle of the two protective covers, and rubber rings are arranged at one ends of the two conical sleeves. According to the utility model, the mounting hole site is formed at the top end of the insulating protective cover, so that the voltage identifier is conveniently mounted, and the dry powder storage box is mounted at the top end of the mounting hole site, so that the fire extinguishing effect is achieved, and the use safety can be improved.
Description
Technical Field
The utility model relates to the technical field of automatic voltage switching, in particular to an automatic voltage switching structure.
Background
There are various voltage levels downhole in a coal mine. Such as AC660V, 1140V, etc., the control transformers in the switches are provided with corresponding plugs to accommodate the different voltage inputs. When different voltages are connected, corresponding plugs of the control transformer are to be adjusted; the existing automatic voltage conversion device adopts resin encapsulation, but can improve reliability and stability, and has the defects that the follow-up disassembly is very troublesome, the shell is directly damaged, the internal voltage identifier cannot be reused, and the interface is not provided with corresponding protective measures, so that the connection of the contact is poor easily.
Disclosure of Invention
The present utility model is directed to an automatic voltage switching structure, which solves the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a voltage automatic switch-over structure, includes insulating protection casing and voltage recognizer, the integrated inside of installing at insulating protection casing of voltage recognizer, the installation hole site has been seted up at the middle part on insulating protection casing top, the open slot has all been seted up at the middle part of insulating protection casing both sides, two the inside of open slot all installs quartzy end, two the protection casing is all installed to the one end of open slot, two the toper cover is all installed to the round hole department at protection casing middle part, two the rubber ring is all installed to the one end of toper cover.
Preferably, the top of the installation hole site is provided with a dry powder storage box, an upper film is arranged in the dry powder storage box, and the volume of dry powder stored in the dry powder storage box is half of that of the dry powder storage box.
Preferably, a plurality of heat dissipation discs are arranged on the front surface and the back surface of the insulating protective cover, and a lower film is arranged in the mounting hole.
The utility model has the technical effects and advantages that:
(1) According to the voltage automatic switching structure, the installation hole site is formed in the top end of the insulating protective cover, so that the voltage identifier is conveniently installed, and meanwhile, the dry powder storage box is installed at the top end of the installation hole site, so that the voltage automatic switching structure has a fire extinguishing effect and can improve the use safety; the protective cover, the conical sleeve and the rubber ring are arranged, and corresponding protective measures are arranged at the interface, so that the contact part is in a good contact state, and the effective operation of the automatic pressure switching device is ensured.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
FIG. 2 is a schematic diagram of the structure of the upper film of the present utility model.
Fig. 3 is a schematic structural view of an insulation shield according to the present utility model.
In the figure, 1, an insulating protective cover; 2. an open slot; 3. a crystal end; 4. a protective cover; 5. a conical sleeve; 6. a rubber ring; 7. a dry powder storage box; 8. a heat dissipation disc; 9. coating a film; 10. a lower film; 11. and (5) installing the hole site.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a voltage automatic switching structure as shown in figures 1-3, which comprises an insulating protective cover 1 and a voltage identifier, wherein the voltage identifier is integrally arranged in the insulating protective cover 1, a mounting hole site 11 is formed in the middle of the top end of the insulating protective cover 1, open grooves 2 are formed in the middle of two sides of the insulating protective cover 1, crystal ends 3 are arranged in the two open grooves 2, protective covers 4 are arranged at one ends of the two open grooves 2, conical sleeves 5 are arranged at round holes in the middle of the two protective covers 4, and rubber rings 6 are arranged at one ends of the two conical sleeves 5.
The top of the installation hole site 11 is provided with a dry powder storage box 7, the inside of the dry powder storage box 7 is provided with an upper film 9, and the volume of the dry powder stored in the dry powder storage box 7 is half of the volume of the dry powder storage box 7.
The front and the back of the insulating protective cover 1 are provided with a plurality of heat dissipation discs 8, and the inside of the installation hole site 11 is provided with a lower film 10.
The working principle of the utility model is as follows: the voltage recognizer comprises silicon controlled rectifier and executor, and voltage recognizer identifiable's voltage is 0V, 660V and 1440V, through seting up installation hole site 11 on the top of insulating protection casing 1, the installation of voltage recognizer of being convenient for, and the open slot 2 department of insulating protection casing 1 both sides installs quartzy end 3 for connect the voltage line, installs dry powder storing box 7 on the top of installation hole site, sets up upper film 9 and lower film 10 as blocking, has the effect of putting out a fire, can improve the security of using, specifically: when the upper film 9 and the lower film 10 are blown by the flame, the dry powder in the flame naturally falls under the gravity to extinguish the fire, so that the flame is prevented from becoming large; the protective cover 4, the conical sleeve 5 and the rubber ring 6 are arranged, and corresponding protective measures are arranged at the interface, so that the contact part is in a good contact state, and the effective operation of the automatic pressure switching device is ensured.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (3)
1. The utility model provides a voltage automatic switch-over structure, includes insulating protection casing (1) and voltage recognizer, its characterized in that, voltage recognizer integrated mounting is in the inside of insulating protection casing (1), installation hole site (11) have been seted up at the middle part on insulating protection casing (1) top, open slot (2) have all been seted up at the middle part of insulating protection casing (1) both sides, two the inside of open slot (2) is all installed quartzy end (3), two protection casing (4) are all installed to the one end of open slot (2), two conical sleeve (5) are all installed in the round hole department at protection casing (4) middle part, two rubber ring (6) are all installed to the one end of conical sleeve (5).
2. The automatic voltage switching structure according to claim 1, wherein a dry powder storage box (7) is mounted at the top end of the mounting hole (11), an upper film (9) is mounted inside the dry powder storage box (7), and the volume of dry powder stored inside the dry powder storage box (7) is half of the volume of the dry powder storage box (7).
3. The automatic voltage switching structure according to claim 1, wherein a plurality of heat dissipation disks (8) are mounted on both the front and back sides of the insulating shield (1), and a lower film (10) is mounted inside the mounting hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321838900.4U CN220420419U (en) | 2023-07-13 | 2023-07-13 | Automatic voltage switching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321838900.4U CN220420419U (en) | 2023-07-13 | 2023-07-13 | Automatic voltage switching structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220420419U true CN220420419U (en) | 2024-01-30 |
Family
ID=89642267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321838900.4U Active CN220420419U (en) | 2023-07-13 | 2023-07-13 | Automatic voltage switching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220420419U (en) |
-
2023
- 2023-07-13 CN CN202321838900.4U patent/CN220420419U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |