DE8807920U1 - Device for generating direct electrical current using solar cells and for storing it - Google Patents

Description

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- Description-

Device for generating direct electrical current using solar cells and for storing it. The invention relates to a device for generating direct electrical current using solar cells and for storing it, which has three output sockets for the simultaneous withdrawal of three different voltages.

Solar panels have been used for years to recharge electrical devices on boats, mountain huts, etc. Devices with built-in accumulators, which ensure operation even in the dark, are also available in stores (see: "Electronics Catalogue E 86", purchase catalogue from Conrari-Electronic, Klaus-Conrad-Str. 1, 84501, page 43).

A major disadvantage of such devices is that they do not allow low voltage devices with different voltage levels to be used at the same time. A further disadvantage is that ^the field of electronic devices which are used in the field of high-frequency transmission is hardly covered by the relevant standards ^.

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In the present case ^, the SuSer ·&eegr; si cht eines ·'i?f ü^ rur ■ ■=· ei sp ie! _s des trfi ^u"q= c-en<?

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&iacgr;) &igr; s &Ggr; er *"if 7 &ugr; r Lrz^ununq &ngr;/&ogr;&eegr; el for direct current with !pl _F :ol irzp] Ipp un- ⁴ to the [jpe i chpri.rc ctesFelbpn contains a single point t &ggr;&pgr;&rgr; i Fchp jnhr-i ] tunn according to drawing 1. Her '/OT -->ufl^n hpuipolic ^u am '.er'i»- ppoph &ggr;-&iacgr; rh t pn "olar-Qeneritni A erzpur'p t-ro ^r wir' ⁴ überpr pinen jchnlter &Ggr; and PiRP &Ggr;&eegr; ^ 1-< rip schu f &zgr;&pgr; i nri &rgr;"\&eegr;,&rgr;&phgr; ( ¹ I &eegr; i_ A ki'u"'ul&pgr; t &ogr; r E zijpp ^r i'hrt .Tipser speir ^u ,pr ^f dip f.nproi e . A P^unruPD" ^r ,r ^J ip nus einem Tr^npi r^or ^r .2,zupi 7ehner-(-)i &eegr;'<gr F . h ur>HF . 5 _f zu■ ;<iu;ir)&rgr; r &Ggr;) * 'in : pn F . 1 and F . r and .&ugr;? piner Leur^f diode f . ' hest eh &diams;■ , üherii.'irt-1 rii e .■>kk unnj 1 -' t &ogr; r en so·'· nni.nr and tr inet hei _be r 1 ^ dun it er-f: >hr des * kk umul &pgr; to r ? E dip L purh tdi ..:rie F.3 to the Lpurhten ''it. '<■·. ilfp des "jrh-ltrrs &Ggr;. is ⁴ " it the user mficlirh, the I. &tgr; dewo r &ogr; ⁿ nr ?u under erh rf-." ^l ien .Ui er a fine &Pgr;, t, ¹ a pwpnt iipHp 7erstörunr"! ^e' accumulator E by a short circuit caused by the p.'ionunrsPe'-iier" ^n &tgr;&pgr; Ou~cannen ^p v/erstoppen the current to the ipu'pilicen I-] tuncen - hzu. I,which the accumulator Tiul^t^T-ensnannunc in ^H ie jeueiliae lusonassninn Li "C &ugr;·&trade;.- ■ &eegr; de '&eegr; . For ^the output of the accumulator E, the voltage is also adjustable. The P=uor uooe H bzc I &bull;ir- ^! "&egr;&idigr;· ^& tgr; ^Ei r · &Ggr; jh ^r &^rgr;&eegr; a= plug contact in the ^usgani? = ^h u-hse ^a .1 bzv. &Bgr;.&Iacgr; t and reduces the voltage ^: nnu ⁿ q sj ^r "*■ 'alt t:zu. increases it tu ¹ " 9 '7olt.The switch H responsible for the 3 iolt output B.1 consists of a transistor H.1, a resistor H.? and a ten-diode H.3.The switch I responsible for the 9 7&ogr;It output consists of a fixed-resistor 1.1 and only a fertio-

'■atjsitz I .?,denken !'eZMnsque 1 1 e ph pn so uie dif important D^t-pn ^{of all} el el-" t mn i rchpn i'aufe.il &rgr; dpr 51- Lick 1 is st e -im [ndp der ''pschreihunn taken uerripn can .The busannnsl^chseri H cehpn by a unii'psent] ir'ip '/er"nderuno from commercially available !vierruol t- !jtec'"&ugr; s-rhinder büchsen with Schnapskontakt·- so ^erunr^R' ¹ f'PLx Fi &eegr;f'ihr&pgr; a 'jteckkont akfe? F!' ¹ itrnm circle pegeschlossen s ·■ &pgr; H unt prhrachen uird.')the working principle of such a nr'"^; pnriprtpn Uisc-inpsbuchse is shown in 'eichnuno sketch in rqpst el 1.1 . In order to achieve the desired effect, the contact pad P.1 serving as the contact never touches other parts of the contact pad R.3. In addition, _{in order to} avoid a temporary short circuit with the contact pad R.3, the contact pad P.1 and the contact pad H.3 were protected with a piece of insulating material ^L _:. The drawings do not represent the open construction of a switch as described above ^, but rather they focus on realizing this ^function in the context ^of the ^switch . The transport of the electrical ^signal to the power supply usually takes place via a cable which is equipped ^with four connectors ^.

.&bull;eni &Pgr;?:'' ¹ ! iece ⁿ three different cables, the Qer ^:4 :E.5eiti" ipueils a plug for a S ^ i ^ t &mdash; diameter rv/n^ 2.1 millimeters i^d ⁿ on the side of the 'er ¹ ^ r &rgr; uc ¹ " ¹ er &egr; a plug for pins ^with a diameter of vz>r- 1.~ ^Y i ^l 'i ^rT ipi-er,/, ¹ 'i:lime ^for hzu·. 2.5 l^illimeter-er ^u ese t zen. ^i chtic is dpfeijd"·^ the '<-ibp] the flow of the electrical current- reverse ^. The plugs must therefore be soldered in opposite directions. The external flow of the device can be seen from the drawings ? > and 3. Drawing ? shows in rough outline the shape of the still unprocessed housing I.

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The figure shows the rear view of the control unit 3.1, on which all the control elements are located. In one position, the device is secured with four non-slip ^feet . The figure also shows the equipment B, the safety shield G, the shield C and the light-emitting diode F, which are shown in the figure. Figure 6 provides a side view of the front panel 3.1, which is used to illustrate the functionality of the control unit. the rest of the housing is sealed. In order to form module A, which consists of three individual modules covered with ^plastic , whose hinges are screwed into the top plate 3.1, a hinge pin K.1 is attached to the right corner of the middle module using a _screw and a hole, and a spacer pin K.2 is attached to this, which is ground onto the module at regular intervals. By means of a small recess in the front plate and the use of a rubber band K.3 which is fastened with screws K.4/K.5 between the end of the cross bolt K.? and the front plate D.1, the user can adjust the position of the solar panel ^L \ . In this way, the inclination of the panel caused by the flat surface of the panel can be increased even further and the solar cells A can be brought into a favorable position in relation to the sun. Of course, ^the above-mentioned recess in the front plate J.1 is dimensioned in such a way that the solar panel A can be positioned almost parallel to the front plate for transporting the device. All external elements that are not attached to the device or can be operated from the outside are mounted inside, on the rods of the housing. It should also be mentioned that the transistor H.1, the fixed voltage regulator 1.1 and an integrated one used in the kit 1.2

Power amplifiers were mounted in isolation on a common heat sink. This was also attached to the separate boards on which the circuits F, N and 1.2 are located, using spacers and screws on the inside of the bottom of the housing.
The embodiment shown and described is only an example to illustrate the invention. The parts list mentioned in the text is shown below in a table.

Parts list:

if applicable / Article name / Reference Source (if article is not available from relevant specialist retailers (if not recognizable from the text) Source)

Housing "TEKO PULT BOX Series 36, Model 363" (Conrad-Electronic, KIaus-Conrad-Str. 1, 8452 Hirschau)

3x solar generators 3V/100 mAh

(Uestfalia Technica,

Postf.42 69,58oo Hagen) Maintenance-free lead-gel accumulator 6W/1.2 Ah "Panasonic LCR-6V1.2P" DC voltage converter "UX2" (Radio-Rim GmbH Munich, Postf.2o 2o 26,
8ooo Munich 2)
Resistance 47 Ohm/o,5 U Resistance 2,7k0hm/o,5 U Resistance 1Bo Ohm/o,25 U

&bull; I* Il I ·· t « I · * # ··

Diode 1N4148 LOU-Current-LED red, 1.6.. .2l/,Ip=2mA (e.g. Order number 1869o2, Conrad-Electronie,Klaus-Conrad-5tr.1,8452 Hirschau) Zener diode ZPD 6.8 Zener diode ZPO 4.7 Zener diode ZPD 3.6 Transistor BC 637 Transistor BD 137 Fixed voltage regulator 1A, Type 78o9

Heat sink type SK 18, length 75 mm

Fusible link 2A slow blow

Uippenschalter Pivot bolt ≤ 3 &khgr; 2o mm Spacer bolt M 3 &khgr; 5o mm 8x Spacer bolt ≤ 3 &khgr; 1o mm

Serves to cool the components 1.1, H.1 and a Λ from 1.2. These three components were mounted electrically insulated=> cn*· ( ! ).

The spacers are used to attach the circuit boards of the F,H, 1.2 group and to attach the heat sink to the bottom of the housing.

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r r r r «rc ccr

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t e * c t c rr rr rr &igr;

-7-

K.4/K.5 Flat head thread screws

galvanized, 3 x 10 mm (with corresponding !"!nuts)

B(1), (2)NV plug/connection socket (3), with switching contact, pin diameter 2.1mm

Screws and nuts of this type were also used for all assembly work. (e.g. spacers on the housing base, ICs on the heat sink, etc.)

4x NU plug 2.1 mm, 1x NU plug 2.5 mm, 1x NV plug 1.3 mm, The six plugs are needed for the three connection cables.

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A device according to the invention, which is robust due to the impact-resistant plastic housing, but is nevertheless inexpensive to manufacture, is particularly suitable for leisure activities, since the three output sockets make it possible to tap three different voltages simultaneously. Socket B(1) is specially designed for operating a portable cassette player. The other two output sockets are suitable, for example, for operating radio receivers, cassette recorders, a handheld radio or other devices with low power consumption. An additional advantage of the device is its relatively low weight (in the example described, only around 750 grams).

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Claims (2)

- Protection claims- 1.Device for generating direct electrical current using solar cells and for storing the same, characterized in that that the housing of the device has three output sockets (B) for the reception of different voltages. 2. Device for generating direct electrical current by means of solar cells and for storing the same according to claim 1, characterized in that that each of the three output sockets (B) closes a contact when a corresponding plug contact is inserted into the respective socket.