GB2091007A - Voltage regulators - Google Patents
Voltage regulators Download PDFInfo
- Publication number
- GB2091007A GB2091007A GB8200446A GB8200446A GB2091007A GB 2091007 A GB2091007 A GB 2091007A GB 8200446 A GB8200446 A GB 8200446A GB 8200446 A GB8200446 A GB 8200446A GB 2091007 A GB2091007 A GB 2091007A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage regulator
- case
- alternator
- noise suppression
- surge absorbing
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 27
- 230000001629 suppression Effects 0.000 claims abstract description 21
- 239000004065 semiconductor Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
- H02K19/365—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches with a voltage regulator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
- H02K11/026—Suppressors associated with brushes, brush holders or their supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Synchronous Machinery (AREA)
Abstract
A semiconductor voltage regulator 1 for an alternator for use in a vehicle comprises a box-shaped or recess-shaped housing portion A formed on an outer surface of a portion of a case 3 of the voltage regulator 1, and surge absorbing means such as a noise suppression capacitor 2 housed in the housing portion A. <IMAGE>
Description
SPECIFICATION
Voltage regulators
This invention relates to voltage regulators.
Embodiments of the invention are suitable, for example, for an alternator for use in a vehicle.
According to the present invention there is provided a semiconductor type voltage regulator suitable for an alternator for use in a vehicle, the voltage regulator comprising: a case having a housing portion in the shape of a box or recess and on an outer surface of a portion of said case; and a surge absorbing element housed in said housing portion of said case.
The invention will now be described by way of example with reference to the accompanying drawings, in which:
Figure 1 is an external view showing a conventional mounting position for a noise suppression capacitor of a voltage regulator;
Figure 2 is a front view of an embodiment of voltage regulator according to the invention;
Figure 3 is a sectional side view of the voltage regulator of Figure 2;
Figures 4 and 5 are respectively a front view and a side view of another embodiment of voltage regulator according to the invention; and
Figure 6 is a general sectional view of an alternator equipped with a voltage regulator according to the invention.
As shown in Figure 1, in the conventional structure, a surge absorbing element such as a noise suppression capacitor 14 is generally mounted on a rear end frame 11 of an alternator, with its positive electrode fastened by a nut 12 to an alternator output terminal 20 insulated with an insulating bushing 1 3. The negative electrode is fastened to the alternator end frame 11 with another nut 12, thereby establishing the electrical connections of the noise suppression capacitor 14.
In such a voltage regulator, the noise suppression capacitor is directly mounted on a part of the alternator, and it functions directly as a component of the alternator. As a result, it is necessary for the noise suppression capacitor itself to be able to withstand adverse environmental conditions, such as vibration, moisture and oil deposition. This inevitably increases the cost and size of the noise suppression capacitor. Moreover, as the size of the noise suppression capacitor is increased, then when it is mounted on the outside of the alternator as shown in Figure 1, the noise suppression capacitor tends to interfere with other components installed in the engine space. On the other hand, if the noise suppression capacitor is mounted inside the alternator, it becomes more difficult to reduce the size of the alternator.A further problem is that there is no effective method other than screwing for mounting the noise suppression capacitor on a large part such as an alternator, and this is a hindrance to automatic assembly. The efficiency of the operation is also reduced by the screwing operation.
The embodiment of Figures 2 and 3 will now be described.
A noise suppression capacitor 2 forms a component element of a voltage regulator 1, and it is contained in a box-shaped portion A formed on a portion of a cover 4 which is a part of a case 3 of the voltage regulator 1. The capacitor 2 has its respective electrodes 2-a and 2-b connected electrically to functional terminals 3-a and 3-b of the voltage regulator 1. The terminal 3-a is connected to a rectifier output potential terminal of an alternator, and the terminal 3-b is connected to a rectifier output grounded terminal of the alternator. A synthetic resin material 10 such as an epoxy resin fills the box-shaped portion A and surrounds the noise suppression capacitor 2 as a protective material against adverse environmental conditions.The case 3 includes a resin moulded terminal support having the functional terminals 3-a, 3-b, 3-c, etc. moulded therein for leading the internal electrodes to the outside, and the case 3 is connected with the cover 4 at portions B with an adhesive or by ultrasonic bonding. The case 3 is further bonded to a radiating plate 1 5 at portions C with a silicone rubber or an epoxy resin.
A thick-film substrate 6 carrying functional elements thereon is bonded to the inner wall of the radiating plate 1 5 with a silicone rubber 5. A nickel wire 7 is connected by welding to a terminal 8 and to the case electrode 3-a electrically to connect the internal electrodes to the external electrodes. A filler material 9 including silica gel or the like protects the functional elements.
Mounting holes 16 are provided at two portions of the case 3 for mounting the voltage regulator 1 on the alternator.
Figures 4 and 5 show another embodiment of this invention. A capacitor 2 is a component element of a voltage regulator 1. External connection terminals 3-a and 3-b of the voltage regulator 1 are disposed on a terminal support which is formed by insert resin moulding or formed as a printed wiring board and forms a part of a case 3. In this embodiment, the capacitor 2 is contained in a recess which is enclosed by side walls D of the case 3, and its lead wires 2-a and 2-b are respectively connected to the external connection termiriai 3-a connected to a rectifier output potential terminal of the alternator, and the external connection terminal 3-b connected to a rectifier output grounded terminal of the alternator.The internal connection lead wires of the voltage regulator 1 are connected in accordance with their functions, to the external connection terminals 3-a, 3-b, 3-c, 3-d, 3-e, 3-f, 3-9 and 3-h which are arranged on the terminal support of the case 3, and the capacitor 2 as well as the terminals 3-a, 3-b, 3-c, 3-d, 3-e, 3-f, 3-9 and 3-h are encapsulated within the recess of the case 3 with a synthetic resin moulding material 10 filling the recess. Mounting holes 1 6 are provided for mounting the voltage regulator 1 on the alternator.
Figure 6 shows an embodiment of voltage regulator according to the invention mounted on an alternator which is used in a vehicle or the like.
The alternator shown in Figure 6 has a rear end frame 11, a front end frame 63, a stator 64, and a rotor 65. A brush holder 67 and a rear cover 66 are fixed to the rear end frame 1 The voltage regulator 1 is fixed to a part of the rear end frame 1 1 and is enclosed by the rear cover 66. The connections of the voltage regulator 1 to external electric circuits are made by way of a connection terminal 3-c.
While the above embodiments have been described with respect to the use of a noise suppression capacitor as a surge absorbing element, the invention is not limited to the use of a capacitor. It is possible to use any electronic element having a surge absorbing or noise suppression function such as p-n junction varistors and diodes, and those having non-linear characteristics such as varistors which are made mainly of ZnO, and further to use an electronic component which comprises the composite use of such electronic elements.
The embodiments described can have the following advantages: (1) The noise suppression capacitor forms a component element of the voltage regulator and thus the noise suppression capacitor does not itself require any provision against such environmental factors as vibration, moisture and oil deposition. This has the effect of reducing the size and cost of the capacitor.
(2) It is only necessary for the capacitor to make provision against adverse environmental conditions in the same way as required in conventional voltage regulators, but no consideration further than that is required. Thus, the noise suppression capacitor may be a simpie electrical component element such as is in common use.
(3) It is easy to effect electrical connection of the noise suppression capacitor by a method such as soldering or welding, which method has high operating efficiency.
(4) The noise suppression capacitor is connected electrically inside the semiconductor voltage regulator, so that the semiconductor voltage regulator can be effectively protected from noise.
Claims (7)
1. A semiconductor type voltage regulator suitable for an alternator for use in a vehicle, the voltage regulator comprising: a case having a housing portion in the shape of a box or recess and on an outer surface of a portion of said case; and a surge absorbing element housed in said housing portion of said case.
2. A voltage regulator according to claim 1 wherein said portion of said case is a cover closing an opening of said case.
3. A voltage regulator according to claim 1 or claim 2 wherein said surge absorbing element has respective terminals thereof connected electrically to input terminals of said voltage regulator, said input terminals of said voltage regulator being connected to a rectifier output potential terminal and a rectifier output grounded terminal of said alternator, respectively.
4. A voltage regulator according to claim 1, claim 2 or claim 3 wherein said surge absorbing element is encapsulated with a synthetic resin material filling said housing portion of said case.
5. A voltage regulator according to any one of the preceding claims wherein said surge absorbing element is a noise suppression capacitor.
6. A voltage regulator substantially as hereinbefore described with reference to Figures 2 and 3 of the accompanying drawings.
7. A voltage regulator substantially as hereinbefore described with reference to Figures 4 and 5 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56001515A JPS57116569A (en) | 1981-01-08 | 1981-01-08 | Voltage regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2091007A true GB2091007A (en) | 1982-07-21 |
| GB2091007B GB2091007B (en) | 1984-08-01 |
Family
ID=11503615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8200446A Expired GB2091007B (en) | 1981-01-08 | 1982-01-07 | Voltage regulators |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS57116569A (en) |
| DE (1) | DE8200310U1 (en) |
| GB (1) | GB2091007B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6081054A (en) * | 1998-09-04 | 2000-06-27 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator |
| FR2795880A1 (en) * | 1999-06-29 | 2001-01-05 | Mitsubishi Electric Corp | AUTOMOTIVE ALTERNATOR |
| US6426575B1 (en) * | 1997-09-25 | 2002-07-30 | Denso Corporation | AC generator for an automotive vehicle with enhanced cooling of internal elements |
| EP1808950A1 (en) * | 2004-11-04 | 2007-07-18 | Mitsubishi Denki Kabushiki Kaisha | Voltage controller of ac generator for vehicle |
| WO2007106201A2 (en) * | 2006-03-01 | 2007-09-20 | Wetherill Associates, Inc. | Voltage regulator with welded lead frame connectors and method of making |
| FR2954614A1 (en) * | 2009-12-18 | 2011-06-24 | Valeo Equip Electr Moteur | MOTOR VEHICLE ALTERNATOR REGULATOR BRUSH HOLDER, MANUFACTURING METHOD AND ALTERNATOR |
| WO2017107101A1 (en) * | 2015-12-23 | 2017-06-29 | 捷和电机制品(深圳)有限公司 | Motor circuit board and direct current motor using same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2544581B1 (en) * | 1983-04-14 | 1985-07-19 | Paris & Du Rhone | RECTIFIER BRIDGE FOR A MOTOR VEHICLE ALTERNATOR, WITH ANTI-INTERFERENCE CAPACITOR |
| JP2804108B2 (en) * | 1989-08-28 | 1998-09-24 | アスモ株式会社 | Motor noise prevention structure |
| CN101589535B (en) * | 2007-03-28 | 2012-05-30 | 三菱电机株式会社 | Ac generator for vehicle |
| JP6395894B1 (en) * | 2017-04-24 | 2018-09-26 | 三菱電機株式会社 | Controller-integrated rotating electrical machine |
| CN110429766B (en) * | 2019-08-23 | 2020-12-29 | 珠海格力电器股份有限公司 | Motor grounding structure and motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS605725Y2 (en) * | 1978-05-10 | 1985-02-22 | 澤藤電機株式会社 | Brushed engine generator |
-
1981
- 1981-01-08 JP JP56001515A patent/JPS57116569A/en active Granted
-
1982
- 1982-01-07 GB GB8200446A patent/GB2091007B/en not_active Expired
- 1982-01-08 DE DE19828200310U patent/DE8200310U1/en not_active Expired
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6426575B1 (en) * | 1997-09-25 | 2002-07-30 | Denso Corporation | AC generator for an automotive vehicle with enhanced cooling of internal elements |
| US6081054A (en) * | 1998-09-04 | 2000-06-27 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator |
| FR2795880A1 (en) * | 1999-06-29 | 2001-01-05 | Mitsubishi Electric Corp | AUTOMOTIVE ALTERNATOR |
| GB2352565A (en) * | 1999-06-29 | 2001-01-31 | Mitsubishi Electric Corp | Surge capacitor mounting in an alternator |
| US6291913B1 (en) | 1999-06-29 | 2001-09-18 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator |
| GB2352565B (en) * | 1999-06-29 | 2001-11-14 | Mitsubishi Electric Corp | Automotive alternator |
| EP1808950A4 (en) * | 2004-11-04 | 2009-10-21 | Mitsubishi Electric Corp | Voltage controller of ac generator for vehicle |
| EP1808950A1 (en) * | 2004-11-04 | 2007-07-18 | Mitsubishi Denki Kabushiki Kaisha | Voltage controller of ac generator for vehicle |
| EP2773027A1 (en) * | 2004-11-04 | 2014-09-03 | Mitsubishi Denki Kabushiki Kaisha | Automotive alternator voltage control apparatus |
| WO2007106201A3 (en) * | 2006-03-01 | 2008-01-10 | Wetherill Associates Inc | Voltage regulator with welded lead frame connectors and method of making |
| WO2007106201A2 (en) * | 2006-03-01 | 2007-09-20 | Wetherill Associates, Inc. | Voltage regulator with welded lead frame connectors and method of making |
| FR2954614A1 (en) * | 2009-12-18 | 2011-06-24 | Valeo Equip Electr Moteur | MOTOR VEHICLE ALTERNATOR REGULATOR BRUSH HOLDER, MANUFACTURING METHOD AND ALTERNATOR |
| WO2011073562A3 (en) * | 2009-12-18 | 2012-02-02 | Valeo Equipements Electriques Moteur | Regulator/brush-holder assembly for a motor-vehicle alternator, manufacturing process and corresponding alternator |
| CN102656783A (en) * | 2009-12-18 | 2012-09-05 | 法雷奥电机设备公司 | Regulator/brush-holder assembly for a motor-vehicle alternator, manufacturing process and corresponding alternator |
| US8994302B2 (en) | 2009-12-18 | 2015-03-31 | Valeo Equipements Electriques Moteur | Regulator/brush-holder assembly for a motor-vehicle alternator, manufacturing process and corresponding alternator |
| CN102656783B (en) * | 2009-12-18 | 2016-05-11 | 法雷奥电机设备公司 | Adjuster/brush holder assembly, manufacture method and the corresponding alternating current generator of automotive alternator |
| WO2017107101A1 (en) * | 2015-12-23 | 2017-06-29 | 捷和电机制品(深圳)有限公司 | Motor circuit board and direct current motor using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57116569A (en) | 1982-07-20 |
| DE8200310U1 (en) | 1982-07-29 |
| JPH0124025B2 (en) | 1989-05-09 |
| GB2091007B (en) | 1984-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 20020106 |