CN202678115U - Capacitor with safety early-warning function - Google Patents
Capacitor with safety early-warning function Download PDFInfo
- Publication number
- CN202678115U CN202678115U CN 201120551695 CN201120551695U CN202678115U CN 202678115 U CN202678115 U CN 202678115U CN 201120551695 CN201120551695 CN 201120551695 CN 201120551695 U CN201120551695 U CN 201120551695U CN 202678115 U CN202678115 U CN 202678115U
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- Prior art keywords
- capacitor
- temperature sensor
- prime
- capacitor element
- safety precaution
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- Expired - Lifetime
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Abstract
The utility model provides a capacitor with a safety early-warning function, comprising an outer shell and a capacitor body accommodated in the outer shell, wherein the capacitor body comprises capacitor elements; and the capacitor elements comprise a central element, a flexible temperature sensor wound on the peripheral surface of the central element, and an outer element wound on the peripheral surface of the flexible temperature sensor. According to the capacitor provided by the utility model, the flexible temperature sensor and the capacitor elements are together package in the shell body, and the flexible temperature sensor is arranged between the central element and the outer element, with respect to a temperature sensor arranged on the surface of elements of the capacitor, the temperature of the interior of the capacitor can be monitored timely and directly, the usage status of the capacitor can be truly reflected, and the capacitor can be prevented from being influenced by the changes of external temperature.
Description
Technical field
The utility model belongs to the electric power storing device field, relates in particular to a kind of capacitor with safety precaution function.
Background technology
The working temperature of capacitor has directly determined the life-span of capacitor, can reduce temperature by improving cooling measure on the one hand, can reduce on the other hand the ESR(equivalent series resistance of capacitor), even but have extremely low ESR(1 milliohm) film capacitor, by effective value be hundreds of in addition on during the electric current of kiloampere, still can produce very large heat, these heats are because discharging not enough can gathering at capacitor internal, cause temperature to raise, internal pressure is excessive, deformation of thin membrane, even cause capacitor to damage.Based on existing material and technique, reduce the limited space of ESR, therefore focus on how by improving structure and increasing the exchange that cooling system is accelerated heat.
Common way is to measure the surface temperature of capacitor, thereby estimate the ruuning situation of capacitor, yet, capacitor exists internal-external temperature difference and internal pressure, therefore be necessary to measure more accurately the actual conditions of capacitor internal, with true reflection capacitor behaviour in service, and make corresponding measure according to measurement result, guarantee system's normal operation.
Summary of the invention
The utility model provides a kind of capacitor internal temperature and pressure that can reflect in real time for solving the technical problem that can't learn the capacitor internal actual conditions, has the capacitor of safety precaution function.
For achieving the above object, the utility model provides a kind of capacitor with safety precaution function, comprises shell and is contained in the interior capacitor body of shell, and described capacitor body comprises capacitor element; Described capacitor element comprises the center sub-prime, is wound on the flexibility temperature sensor of center sub-prime outer peripheral face, and is wound on the outer sub-prime of flexibility temperature sensor outer peripheral face.
Preferably, described capacitor body also comprises the transverse pressure transducer that is horizontally set at the capacitor element outer peripheral face, and vertically is arranged at the longitudinal pressure transducer of at least one end face of capacitor element.
Preferably, described capacitor body also comprises the gilding layer that is positioned at the capacitor element both ends of the surface, and described longitudinal pressure transducer is positioned on the gilding layer.
Preferably, the radius of described center sub-prime is half of capacitor element radius.
Preferably, described flexibility temperature sensor is that polyester material is the Metal Membrane Temperature Sensor of substrate.
Preferably, described flexibility temperature sensor coiling center sub-prime one circle.
Preferably, the thickness of described flexibility temperature sensor is 0.001-0.5mm.
Preferably, described flexibility temperature sensor is no more than the end face of capacitor element.
Preferably, be provided with layers of two-sided or be coated with glue in the flexibility temperature sensor inboard between described flexibility temperature sensor and the center sub-prime.
The beneficial effects of the utility model are: flexibility temperature sensor in capacitor element is encapsulated in housing and flexibility temperature sensor between center sub-prime and outer sub-prime, with respect to the temperature sensor that is arranged on the capacitor element surface, can more direct timely monitoring capacitor internal temperature, true reflection capacitor operating position prevents that to greatest extent exterior temperature change is on the impact of capacitor.
Description of drawings
Fig. 1 is the cutaway view of the capacitor with safety precaution function that provides of the utility model.
Fig. 2 is the metalized film schematic diagram of the capacitor element that provides of the utility model.
Fig. 3 is the schematic diagram of the center sub-prime that provides of the utility model.
Fig. 4 is the schematic diagram of the outer coiling flexibility temperature sensor of center sub-prime that provides of the utility model.
Fig. 5 is the schematic diagram of the capacitor element that provides of the utility model.
Fig. 6 is the schematic diagram behind the capacitor element two ends metal spraying that provides of the utility model.
Mark among the figure:
The 1-capacitor,
The 2-shell,
The 3-capacitor body,
4-electrode, 41a/41b-metal connecting terminal, 42-conductive plate, 43 base plates,
The outer sub-prime of 5-capacitor element, 51-center sub-prime, 52-flexibility temperature sensor, 521-lead-in wire, 522-sealing strip, 53-, 54-metalized film, 541-basement membrane, 542-metal level,
Gilding layer under the upper gilding layer of 61-, the 62-,
7-transverse pressure transducer,
8-longitudinal pressure transducer,
9-epoxy resin.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Consult Fig. 1.A kind of capacitor 1 with safety precaution function comprises shell 2 and is contained in capacitor body 3 in the shell 2 that described capacitor body 3 comprises capacitor element 5; Described capacitor element 5 comprises center sub-prime 51, is wound on the flexibility temperature sensor 52 of center sub-prime 51 outer peripheral faces, and is wound on the outer sub-prime 53 of flexibility temperature sensor 52 outer peripheral faces.
Capacitor of the present utility model is metallic film capacitor, the method for winding of center sub-prime 51 and outer sub-prime 53 is well known for the person skilled in the art, such as Fig. 2, it is reeled by two flat metalized films 54 and forms, described metalized film 54 comprises basement membrane 541 and is located at metal level 542 on the basement membrane 541, one end face of metal level 542 is mutually concordant with basement membrane 541 corresponding end faces, the corresponding end-faces of basement membrane 541 is not exposed in the other end, and, the end face that exposes basement membrane 541 of the metal level 542 of described two metalized films 54 protrudes in the opposite direction respectively and arranges, and forms the two poles of the earth of capacitor element 5.Center sub-prime behind the coiling as shown in Figure 3.
The capacitor element 5 by 54 coiling and moldings of two metalized films that is different from prior art, after center of the present utility model sub-prime 51 is reeled and is finished, also need to be at center sub-prime 51 outer peripheral faces coiling one circle flexibility temperature sensor 52, with the temperature of Detection capacitance device inside, such as Fig. 4.According to knowwhy, existing capacitor half place between sub-prime cylindrical and inner circle is the highest zone of temperature, so the radius of preferred center sub-prime 51 is capacitor element 5 radiuses half.
Consult Fig. 6, for convenience of description, the gilding layer that will be positioned at capacitor element both ends of the surface about in the of 5 is called gilding layer 61 and lower gilding layer 62, upper and lower gilding layer by on the upper and lower end face of capacitor element 5 respectively metal spraying form, be used for drawing the two poles of the earth of capacitor element 5.Be understandable that, because upper and lower gilding layer 62 is used for drawing the two poles of the earth of capacitor element 5, use the metal effect that conductance is high, the heat conduction is good better, but based on the consideration of melting point metal, metal-spraying equipment generally adopts zinc silk metal spraying; In addition, the thickness of described upper and lower gilding layer there is not special requirement.
Because flexibility temperature sensor need be connected to external equipment, so flexibility temperature sensor is provided with lead-in wire 521, and lead-in wire is drawn from capacitor element one end face, in order not run on the lead-in wire when the metal spraying, and first sheathed sealing strip 522 on lead-in wire.
Consult Fig. 1, electrode 4 comprises metal connecting terminal 41a and 41b, and the conductive plate 42 that is connected with 41b with metal connecting terminal 41a respectively and draw axle (not shown), wherein metal connecting terminal 41a is electrically connected with upper gilding layer 61 by conductive plate 42, metal connecting terminal 41b is electrically connected with lower gilding layer 62 by drawing axle, and specifically: the axle of drawing that is connected with metal connecting terminal 41b passes capacitor element 5 and is electrically connected with the base plate 43 that is positioned at lower gilding layer 62 bottoms.
The preferred capacitor body also is included in the i.e. transverse pressure transducer 7 of the side horizontally set of outer sub-prime 53 of capacitor element outer peripheral face, so-called horizontally set refers to transverse pressure transducer 7 along the circumferencial direction setting of outer sub-prime 53, the stress that expands and produced diametrically with sense capacitor sub-prime 5.
The type of described transverse pressure transducer 7 is unrestricted, can be flexible also can be rigidity, size is also unrestricted, as long as can put in the shell 2 after being arranged on the outer sub-prime 53, its shape can be band shape.For keeping fixing, also can transverse pressure transducer 7 be bonded in outer sub-prime 53 sides by layers of two-sided or glue.
The stress that expands and produce in the axial direction for Detection capacitance device sub-prime 5, described capacitor body also is included in the longitudinal pressure transducer 8 that arranges at least one end face of capacitor element 5, preferred longitudinal pressure transducer is positioned on the gilding layer, the present embodiment is easy to operate, at upper gilding layer 61 longitudinal pressure transducer 8 is set.Described longitudinal pressure transducer 8 is conventionally known to one of skill in the art.
Be placed in the shell 2 at the above-mentioned capacitor element 5 that is provided with flexibility temperature sensor 52, transverse pressure transducer 7, longitudinal pressure transducer 8, and the gap between infusion epoxy resin 9 sealed capacitor sub-primes 5 and the shell 2 and shell 2 openings.
Capacitor of the present utility model is arranged in the system, and with flexibility temperature sensor 52, transverse pressure transducer 7, the lead-in wire of longitudinal pressure transducer 8 is connected in the controller of system, above three transducers are sent to controller with the signal that detects by lead-in wire, controller with the value of the deformation parameter of the temperature comparison of the capacitor element 5 inner maximum temperatures that detect and setting and capacitor element 5 and setting relatively, if detect temperature, pressure anomaly (namely surpassing the safe temperature value of setting), controller will send instruction and cut off capacitor or start heat abstractor, until the capacitor temperature, pressure value is down in the safe range and is worked on.
The below introduces the manufacture method of the utility model capacitor: the center sub-prime 51 of at first reeling, at center sub-prime 51 outer coiling one circle flexibility temperature sensors 52, then sub-prime 53 outside flexibility temperature sensor 52 outer coilings forms capacitor element 5.At the both ends of the surface metal spraying of capacitor element 5, because flexibility temperature sensor 52 is provided with lead-in wire, lead-in wire is drawn from an end face, needs this moment to coat sealing strip 522 at the lead-in wire of drawing from end face, and then carries out metal spraying.Behind the metal spraying, peel off the gold layer on the sealing strip 522.The lateral surface of capacitor element 5 and on gilding layer 61 transverse pressure transducer 7 and longitudinal pressure transducer 8 are set, and metal connecting terminal 41a is soldered on the conductive plate 42, conductive plate 42 is welded to gilding layer 61, with this metal connecting terminal 41a is electrically connected with upper gilding layer 61; Draw after axle passes capacitor element 5, lower end and base plate 43 welding of being fixed on the lower gilding layer 62, weld with metal connecting terminal 41b the upper end, with this metal connecting terminal b is electrically connected with lower gilding layer 62.Then capacitor element 5 is put into shell 2, there are the lead-in wire of sealing strip 522 and the lead-in wire of transverse pressure transducer 7 and longitudinal pressure transducer 8 to be drawn out to outside the shell 2 in the cover of flexible sensor, carry out embedding, tear the sealing strip on the flexible sensor lead-in wire, expose lead-in wire, and the lead-in wire of above three transducers is connected with system controller respectively.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. the capacitor with safety precaution function comprises shell and is contained in the interior capacitor body of shell, and described capacitor body comprises capacitor element; It is characterized in that: described capacitor element comprises the center sub-prime, is wound on the flexibility temperature sensor of center sub-prime outer peripheral face, and is wound on the outer sub-prime of flexibility temperature sensor outer peripheral face.
2. the capacitor with safety precaution function as claimed in claim 1, it is characterized in that: described capacitor body also comprises the transverse pressure transducer that is horizontally set at the capacitor element outer peripheral face, and vertically is arranged at the longitudinal pressure transducer of at least one end face of capacitor element.
3. the capacitor with safety precaution function as claimed in claim 2, it is characterized in that: described capacitor body also comprises the gilding layer that is positioned at the capacitor element both ends of the surface, described longitudinal pressure transducer is positioned on the gilding layer.
4. the capacitor with safety precaution function as claimed in claim 1, it is characterized in that: the radius of described center sub-prime is half of capacitor element radius.
5. the capacitor with safety precaution function as claimed in claim 1, it is characterized in that: described flexibility temperature sensor is that polyester material is the Metal Membrane Temperature Sensor of substrate.
6. the capacitor with safety precaution function as claimed in claim 1 is characterized in that: described flexibility temperature sensor coiling center sub-prime one circle.
7. the capacitor with safety precaution function as claimed in claim 1, it is characterized in that: the thickness of described flexibility temperature sensor is 0.001-0.5mm.
8. the capacitor with safety precaution function as claimed in claim 1, it is characterized in that: described flexibility temperature sensor is no more than the end face of capacitor element.
9. the capacitor with safety precaution function as claimed in claim 1 is characterized in that: be provided with layers of two-sided between described flexibility temperature sensor and the center sub-prime or be coated with glue in the flexibility temperature sensor inboard.
10. the capacitor with safety precaution function as claimed in claim 2 is characterized in that: described transverse pressure transducer is for banded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120551695 CN202678115U (en) | 2011-12-27 | 2011-12-27 | Capacitor with safety early-warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120551695 CN202678115U (en) | 2011-12-27 | 2011-12-27 | Capacitor with safety early-warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678115U true CN202678115U (en) | 2013-01-16 |
Family
ID=47499001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120551695 Expired - Lifetime CN202678115U (en) | 2011-12-27 | 2011-12-27 | Capacitor with safety early-warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678115U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914044A (en) * | 2016-07-01 | 2016-08-31 | 中南大学 | Capacitor for testing |
| CN105957721A (en) * | 2016-07-01 | 2016-09-21 | 中南大学 | Capacitor for detection |
| CN106128777A (en) * | 2016-07-01 | 2016-11-16 | 中南大学 | A kind of radio detection electricity container |
| CN106128776A (en) * | 2016-07-01 | 2016-11-16 | 中南大学 | A kind of wireless test electricity container |
| CN107403694A (en) * | 2017-08-31 | 2017-11-28 | 池州市容大电气有限公司 | A kind of capacitor with spare capacitor |
| CN111712695A (en) * | 2018-01-31 | 2020-09-25 | Abb电网瑞士股份公司 | Wound electrical component with printed electronic sensor |
-
2011
- 2011-12-27 CN CN 201120551695 patent/CN202678115U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914044A (en) * | 2016-07-01 | 2016-08-31 | 中南大学 | Capacitor for testing |
| CN105957721A (en) * | 2016-07-01 | 2016-09-21 | 中南大学 | Capacitor for detection |
| CN106128777A (en) * | 2016-07-01 | 2016-11-16 | 中南大学 | A kind of radio detection electricity container |
| CN106128776A (en) * | 2016-07-01 | 2016-11-16 | 中南大学 | A kind of wireless test electricity container |
| CN107403694A (en) * | 2017-08-31 | 2017-11-28 | 池州市容大电气有限公司 | A kind of capacitor with spare capacitor |
| CN111712695A (en) * | 2018-01-31 | 2020-09-25 | Abb电网瑞士股份公司 | Wound electrical component with printed electronic sensor |
| US11137293B2 (en) | 2018-01-31 | 2021-10-05 | Abb Power Grids Switzerland Ag | Wound electrical component with printed electronics sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |