CN212413496U - High-voltage generating device and dental X-ray machine - Google Patents
High-voltage generating device and dental X-ray machine Download PDFInfo
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- CN212413496U CN212413496U CN202021590358.1U CN202021590358U CN212413496U CN 212413496 U CN212413496 U CN 212413496U CN 202021590358 U CN202021590358 U CN 202021590358U CN 212413496 U CN212413496 U CN 212413496U
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Abstract
The utility model discloses a high pressure generating device and dental X-ray machine, high pressure generating device include circuit board, bulb, high-pressure cover and withstand voltage casting glue, the bulb with circuit board electric connection, high-pressure cover are located the part or whole of circuit board, withstand voltage casting glue seal in the circuit board the bulb with the outside of high-pressure cover. The pressure-resistant pouring sealant has a pressure-resistant insulating effect, can prevent the circuit board and the bulb tube from being ignited by discharge, and encapsulates the circuit board and the bulb tube through the pressure-resistant pouring sealant, so that the traditional oil tank and transformer insulating oil can be saved, thereby saving processing links such as vacuum oil injection and vacuum defoaming, improving the production efficiency and reducing the production cost.
Description
Technical Field
The utility model relates to a dental technology field, in particular to high pressure generating device and dental X-ray machine.
Background
The dental X-ray machine is a device for acquiring an image of teeth in a human oral cavity by using X-rays, and is one of imaging detection devices widely applied to oral treatment. Portable dental X-ray machine includes control circuit, inverter circuit and is used for producing the high voltage generator of X ray, and high voltage generator includes boost circuit, voltage doubling circuit, bulb and feedback circuit, and wherein, control circuit, inverter circuit, boost circuit, voltage doubling circuit and bulb be electric connection in proper order, and feedback circuit's input and bulb are connected, and feedback circuit's output and control circuit are connected.
In traditional high voltage generator, boost circuit, voltage doubling circuit and feedback circuit all integrate on the PCB board, in order to prevent that the PCB board from taking place the phenomenon of striking sparks at the during operation, need arrange the PCB board in an oil tank to inject transformer insulating oil in the oil tank. The conventional high voltage generator has the following disadvantages:
1) the machining of the oil tank comprises a plurality of procedures of welding an oil tank shell, vacuum oil injection, vacuum defoaming and the like, the oil tank is high in assembly difficulty and low in assembly efficiency, and the problems of oil leakage, discharge, bubbles and the like are easy to occur in the machining process;
2) the booster circuit, the voltage doubling circuit and the feedback circuit are all integrated on the PCB, so that the PCB is large in size, single in structure and not beneficial to miniaturization design.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a high pressure generating device and dentistry X-ray machine can save oil tank and transformer insulating oil to save processing links such as vacuum oiling and vacuum deaeration, improve production efficiency and reduction in production cost.
In a first aspect, a high voltage generator according to an embodiment of the present invention includes a circuit board; the bulb tube is electrically connected with the circuit board; the high-voltage cover is covered on part or all of the circuit board; and the pressure-resistant pouring sealant is encapsulated at the outer sides of the circuit board, the bulb tube and the high-voltage cover.
According to the utility model discloses high pressure generating device has following beneficial effect at least:
the pressure-resistant pouring sealant has a pressure-resistant insulating effect, can prevent the circuit board and the bulb tube from being ignited by discharge, and encapsulates the circuit board and the bulb tube through the pressure-resistant pouring sealant, so that the traditional oil tank and transformer insulating oil can be saved, thereby saving processing links such as vacuum oil injection and vacuum defoaming, improving the production efficiency and reducing the production cost.
According to the utility model discloses a some embodiments, be provided with boost circuit, voltage doubling circuit and feedback circuit on the circuit board, boost circuit's output with voltage doubling circuit electric connection, voltage doubling circuit's output with the positive pole electric connection of bulb, feedback circuit's input with the negative pole electric connection of bulb, boost circuit's input with feedback circuit's output all extends withstand voltage casting glue.
According to the utility model discloses a some embodiments, be provided with boost circuit and voltage doubling circuit on the circuit board, boost circuit's output with voltage doubling circuit electric connection, voltage doubling circuit's output with the positive pole electric connection of bulb, boost circuit's input extends withstand voltage casting glue.
According to some embodiments of the utility model, still encapsulate in the withstand voltage casting glue and have fed back circuit, fed back circuit's input with the negative pole electric connection of bulb, fed back circuit's output extends withstand voltage casting glue, fed back circuit includes a plurality of plug-in components resistance and a plurality of plug-in components electric capacity, plug-in components resistance with plug-in components electric capacity is chain form welding.
According to some embodiments of the present invention, the outside cover of the feedback circuit is provided with an insulating sleeve.
According to some embodiments of the present invention, the circuit board is dip-coated with a voltage-resistant insulating layer.
According to some embodiments of the present invention, the pressure-resistant insulating layer is an epoxy resin insulating layer.
According to some embodiments of the utility model, the high-voltage cover adopts DMD insulated paper to fold and form.
In a second aspect, a dental X-ray machine according to an embodiment of the present invention comprises the above-mentioned high voltage generating device.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a high voltage generator according to an embodiment of the present invention;
fig. 2 is a schematic block circuit diagram of a high voltage generator according to an embodiment of the present invention;
FIG. 3 is a circuit schematic of a feedback circuit of the high voltage generating device shown in FIG. 2;
fig. 4 is a schematic diagram of a welding structure of the feedback circuit shown in fig. 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, the present embodiment discloses a high voltage generating apparatus, which includes a circuit board 100, a bulb 200, a high voltage cover 300 and a pressure-resistant potting adhesive 400, wherein the bulb 200 is electrically connected to the circuit board 100, the high voltage cover 300 covers a part or all of the circuit board 100, and the pressure-resistant potting adhesive 400 is encapsulated outside the circuit board 100, the bulb 200 and the high voltage cover 300. The high-voltage cover 300 of this embodiment adopts DMD insulated paper (polyester film polyester fiber non-woven soft combined material), folds DMD insulated paper into box-like to the high-pressure side at circuit board 100 is established to the cover, can play high-pressure shielding effect to the high-pressure side of circuit board 100, and the high-voltage cover 300 of this embodiment simple structure, processing convenience, with low costs are favorable to improving production efficiency and reduction in production cost. It should be noted that the circuit board 100 may be partially or entirely a high voltage side according to different circuit structures integrated on the circuit board 100.
The pressure-resistant pouring sealant 400 of the embodiment is a fluid coagulant in a normal state, the pressure-resistant pouring sealant 400 can be a coagulant of type 6104 or 650 (supplier is quanzhou jinguo new material science and technology limited), the pressure-resistant pouring sealant 400 has good pressure-resistant insulation and heat conduction effects, can prevent the circuit board 100 and the ball tube 200 from being ignited by electric discharge during operation, the pressure-resistant pouring sealant 400 has good fluidity before being cured, and can penetrate into small gaps, the circuit board 100 and the ball tube 200 are encapsulated by the pressure-resistant pouring sealant 400, the pressure-resistant pouring sealant 400 is solid after being cured, and a traditional oil tank and transformer insulating oil can be omitted, so that processing links such as vacuum oil injection and vacuum defoaming are omitted, the production efficiency is improved, the production cost is reduced, for example, the material and the processing and maintenance costs of the oil tank, and the miniaturization design of the product is realized.
In some embodiments, referring to fig. 1 and fig. 2, the circuit board 100 is provided with a voltage boosting circuit 110, a voltage doubling circuit 120 and a feedback circuit 130, an output end of the voltage boosting circuit 110 is electrically connected to the voltage doubling circuit 120, an output end of the voltage doubling circuit 120 is electrically connected to an anode of the bulb 200, an input end of the feedback circuit 130 is electrically connected to a cathode of the bulb 200, and the input end of the voltage boosting circuit 110 and the output end of the feedback circuit 130 both extend out of the pressure-resistant potting adhesive 400. For a high-voltage generating device with low volume requirement, the circuit board 100 can integrate the booster circuit 110, the voltage doubling circuit 120 and the feedback circuit 130 according to the traditional structure, and the processing mode is mature and convenient.
In other embodiments, referring to fig. 1, 3 and 4, in order to realize a miniaturized design, the area of the circuit board 100 needs to be reduced, and therefore, the feedback circuit 130 can be separated from the boost circuit 110 and the voltage doubling circuit 120 according to the structural features of the feedback circuit 130. The circuit board 100 is provided with a booster circuit 110 and a voltage doubling circuit 120, an output end of the booster circuit 110 is electrically connected with the voltage doubling circuit 120, an output end of the voltage doubling circuit 120 is electrically connected with an anode of the bulb tube 200, and an input end of the booster circuit 110 extends out of the pressure-resistant pouring sealant 400. Since the feedback circuit 130 is omitted from the circuit board 100, the area of the circuit board 100 can be further reduced, which is advantageous for a miniaturized design.
Referring to fig. 3 and 4, the pressure-resistant potting adhesive 400 further encloses a feedback circuit 130, an input end of the feedback circuit 130 is electrically connected to a cathode of the bulb 200, an output end of the feedback circuit 130 extends out of the pressure-resistant potting adhesive 400, the feedback circuit 130 includes a plurality of resistors and a plurality of capacitors, and according to structural characteristics of the feedback circuit 130, the resistors and the capacitors of the feedback circuit 130 are all plug-in components, that is, plug-in resistors and plug-in capacitors are adopted. Referring to fig. 4, during production, the pins of the plug-in resistor and the plug-in capacitor are connected end to end after being crimped, that is, the plug-in resistor and the plug-in capacitor are welded in a chain shape, so that a conventional PCB (printed circuit board) can be omitted, the feedback circuit 130 is not limited by a conventional plane structure any more, and can be bent into various shapes, thereby more effectively utilizing a narrow space and being beneficial to the miniaturization design of a high-voltage generating device.
Referring to fig. 4, in order to avoid short circuit between the solder joint of the feedback circuit 130 and the boost circuit 110 or the voltage doubling circuit 120 due to exposure, an insulating sleeve 131 is sleeved outside the feedback circuit 130, and the pins at the first end and the last end of the feedback circuit 130 extend out of the insulating sleeve 131 so as to be connected with the bulb 200 and an external control circuit.
In order to improve the voltage withstanding property of the circuit board 100, a voltage withstanding insulating layer is dip-coated on the circuit board 100, and the voltage withstanding insulating layer is an epoxy resin insulating layer, which can protect the solder joints on the circuit board 100.
The embodiment of the utility model provides a still disclose a dental X-ray machine, including foretell high pressure generating device, the high pressure generating device of this embodiment can save traditional oil tank and transformer insulating oil, and the processing mode is simple, and is small, is favorable to realizing miniaturized design, can avoid the risk of oil tank oil leak, is favorable to improving the reliability of product.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A high voltage generating device, comprising:
a circuit board (100);
the bulb tube (200) is electrically connected with the circuit board (100);
a high voltage cover (300) covering part or all of the circuit board (100);
and the pressure-resistant pouring sealant (400) is encapsulated at the outer sides of the circuit board (100), the ball tube (200) and the high-voltage cover (300).
2. The high voltage generation device according to claim 1, wherein a voltage boost circuit (110), a voltage doubler circuit (120) and a feedback circuit (130) are disposed on the circuit board (100), an output end of the voltage boost circuit (110) is electrically connected to the voltage doubler circuit (120), an output end of the voltage doubler circuit (120) is electrically connected to an anode of the bulb (200), an input end of the feedback circuit (130) is electrically connected to a cathode of the bulb (200), and an input end of the voltage boost circuit (110) and an output end of the feedback circuit (130) both extend out of the pressure-resistant potting adhesive (400).
3. The high voltage generation device according to claim 1, wherein a voltage boost circuit (110) and a voltage doubler circuit (120) are disposed on the circuit board (100), an output end of the voltage boost circuit (110) is electrically connected to the voltage doubler circuit (120), an output end of the voltage doubler circuit (120) is electrically connected to an anode of the bulb (200), and an input end of the voltage boost circuit (110) extends out of the pressure-resistant potting adhesive (400).
4. The high voltage generation device according to claim 1 or 3, wherein a feedback circuit (130) is further encapsulated in the pressure-resistant pouring sealant (400), an input end of the feedback circuit (130) is electrically connected with a cathode of the bulb tube (200), an output end of the feedback circuit (130) extends out of the pressure-resistant pouring sealant (400), the feedback circuit (130) comprises a plurality of plug-in resistors and a plurality of plug-in capacitors, and the plug-in resistors and the plug-in capacitors are welded in a chain shape.
5. A high voltage generating device according to claim 4, characterized in that the feedback circuit (130) is externally sheathed with an insulating sleeve (131).
6. The high voltage generating device according to claim 1, wherein said circuit board (100) is dip coated with a voltage-resistant insulating layer.
7. The high voltage generator according to claim 6, wherein said voltage-resistant insulating layer is an epoxy resin insulating layer.
8. The high voltage generating device according to claim 1, wherein the high voltage cover (300) is folded using DMD insulation paper.
9. A dental X-ray machine comprising a high voltage generating device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590358.1U CN212413496U (en) | 2020-08-04 | 2020-08-04 | High-voltage generating device and dental X-ray machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590358.1U CN212413496U (en) | 2020-08-04 | 2020-08-04 | High-voltage generating device and dental X-ray machine |
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| Publication Number | Publication Date |
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| CN212413496U true CN212413496U (en) | 2021-01-26 |
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| CN202021590358.1U Active CN212413496U (en) | 2020-08-04 | 2020-08-04 | High-voltage generating device and dental X-ray machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315346A (en) * | 2021-06-29 | 2021-08-27 | 成都锐明合升科技有限责任公司 | Miniature high-voltage power supply with high insulating property |
-
2020
- 2020-08-04 CN CN202021590358.1U patent/CN212413496U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315346A (en) * | 2021-06-29 | 2021-08-27 | 成都锐明合升科技有限责任公司 | Miniature high-voltage power supply with high insulating property |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211013 Address after: 2 / F, building a, R & D and production building, No. 18, science and technology fifth road, innovation coast, Tangjiawan Town, high tech Zone, Zhuhai, Guangdong 519000 Patentee after: ZHUHAI RUIYING TECHNOLOGY CO.,LTD. Address before: 2 / F, building B, No.18, science and technology fifth road, innovation coast, Tangjiawan Town, high tech Zone, Zhuhai, Guangdong 519000 Patentee before: Mingfeng Technology (Zhuhai) Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hengqin Financial Investment International Finance Leasing Co.,Ltd. Assignor: ZHUHAI RUIYING TECHNOLOGY CO.,LTD. Contract record no.: X2023980034955 Denomination of utility model: High pressure generator and dental X-ray machine Granted publication date: 20210126 License type: Exclusive License Record date: 20230421 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High pressure generator and dental X-ray machine Effective date of registration: 20230424 Granted publication date: 20210126 Pledgee: Hengqin Financial Investment International Finance Leasing Co.,Ltd. Pledgor: ZHUHAI RUIYING TECHNOLOGY CO.,LTD. Registration number: Y2023980038990 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |