TW201941238A - Electromagnetic contactor - Google Patents
Electromagnetic contactor Download PDFInfo
- Publication number
- TW201941238A TW201941238A TW108104625A TW108104625A TW201941238A TW 201941238 A TW201941238 A TW 201941238A TW 108104625 A TW108104625 A TW 108104625A TW 108104625 A TW108104625 A TW 108104625A TW 201941238 A TW201941238 A TW 201941238A
- Authority
- TW
- Taiwan
- Prior art keywords
- contact
- arc
- hot gas
- movable contact
- fixed contact
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Description
本發明係關於一種具備將可動接點與固定接點之接點斷開時產生之熱氣體予以冷卻並排氣至裝置外之排氣路的電磁接觸器。 The present invention relates to an electromagnetic contactor provided with a hot gas generated when a movable contact is disconnected from a fixed contact and cooled to an exhaust path outside the device.
以往，就該種裝置而言，已知有一種專利文獻1所記載之電磁接觸器。該裝置係具備：固定接觸件，係在消弧室之內部設置有固定接點；可動接觸件，係設置有可動接點，且該可動接點可與固定接點接觸及非接觸；及消弧柵極群，係彼此隔開地朝水平方向排列有複數個消弧柵極；且更具備配置在固定接觸件及可動接觸件之上方朝水平方向延伸之排氣路。更詳細而言，排氣路係具備下述構件而構成：第1導引壁，係在比固定接觸件及可動接觸件之消弧柵極群更上方之處，配置於接近該等兩接觸件之下側且朝水平方向延伸；第2導引壁，係在比固定接觸件及可動接觸件之消弧柵極群更上方之處，配置在遠離該等兩接觸件之上側且朝水平方向延伸；第1開口，係設置在第1導引壁之固定接觸件側的端部；及第2開口，係設置在第2導引壁之可動接觸件側的端部。 Conventionally, an electromagnetic contactor described in Patent Document 1 has been known for such a device. The device is provided with: a fixed contact, which is provided with a fixed contact inside the arc extinguishing chamber; a movable contact, which is provided with a movable contact, and the movable contact can be contacted and non-contacted with the fixed contact; and The arc grid group includes a plurality of arc-extinguishing grids arranged in a horizontal direction spaced apart from each other, and further includes an exhaust path arranged in a horizontal direction above the fixed contact and the movable contact. In more detail, the exhaust path is configured with the following members: the first guide wall is located above the arc-extinguishing grid group of the fixed contactor and the movable contactor, and is disposed close to the two contacts. The second guide wall is located above the arc extinguishing grid group of the fixed contact and the movable contact, and is arranged on the side far from the upper side of the two contacts and faces horizontally. It extends in the direction; the first opening is provided at the end portion on the fixed contact side of the first guide wall; and the second opening is provided at the end portion on the movable contact side of the second guide wall.
在如上方式構成之裝置中，當在可動接點與固定接點之接點斷開時若在兩接點間產生熱氣體，所產生之熱氣體係通過構成消弧柵極群 之複數個消弧柵極間，並從設置在第1導引壁之固定接點側之端部的第1開口導入至排氣路，並通過該排氣路，從設置在第2導引壁之可動接點側之端部的第2開口排氣至該裝置外。熱氣體係由於在通過排氣路之際被冷卻而溫度會變低，因此體積會變小，而可減少熱氣體排出至該裝置外之排氣量。 In the device structured as above, when the movable contact and the fixed contact are disconnected, if hot gas is generated between the two contacts, the generated hot gas system passes through the arc suppression grid group. Between the plurality of arc-extinguishing grids, and is introduced into the exhaust passage from the first opening provided at the end of the fixed contact side of the first guide wall, and passes through the exhaust passage from the second guide provided The second opening on the end of the movable contact side of the wall is exhausted to the outside of the device. Since the hot gas system is cooled while passing through the exhaust path, the temperature will be lowered, so the volume will be smaller, and the amount of exhaust gas to be discharged to the outside of the device will be reduced.
專利文獻1：日本特開平02-090422號公報 Patent Document 1: Japanese Patent Application Laid-Open No. 02-090422
然而，在上述習知技術中，如前所述，於第1導引壁之固定接觸件側的端部設置有第1開口，該第1開口係成為接近在接點斷開時產生之熱氣體的產生位置之構造。因此，從屬於熱氣體之產生部位的固定接點至第1開口為止，該熱氣體會經過之消弧室之內部的排氣路徑之長度會變短，而無法充分地對熱氣體進行冷卻，而且會有無法充分地抑制熱氣體排出至該裝置外之排氣量的可能性。 However, in the conventional technique described above, as described above, a first opening is provided at an end of the fixed contact side of the first guide wall, and the first opening is close to the heat generated when the contact is opened. The structure of the gas generating position. Therefore, the length of the exhaust path inside the arc extinguishing chamber through which the hot gas passes from the fixed contact of the hot gas generating portion to the first opening becomes short, and the hot gas cannot be sufficiently cooled, and There is a possibility that the amount of exhaust gas discharged from the outside of the device cannot be sufficiently suppressed.
本發明係鑑於上述課題而研創者，其目的在於提供一種可更進一步抑制熱氣體排出至裝置外之排氣量的電磁接觸器。 The present invention was made in view of the above-mentioned problems, and an object thereof is to provide an electromagnetic contactor capable of further suppressing the amount of exhaust gas discharged from the outside of a hot gas.
為了要解決上述課題並達成目的，申請專利範圍第1項所述之電磁接觸器係具備：固定接觸件，係設置有固定接點；可動接觸件，係 設置有可動接點，且可使該可動接點與固定接點接觸及非接觸；以及殼體，係具有將在可動接點與固定接點之接點斷開時產生之熱氣體排出至外部的排氣路；殼體係在可動接點與固定接點為接觸及非接觸之方向的接觸方向，於可動接點側具有將熱氣體導入至排氣路之導入口。 In order to solve the above-mentioned problems and achieve the purpose, the electromagnetic contactor described in the first patent application scope includes: a fixed contact, which is provided with a fixed contact; a movable contact, which is A movable contact is provided, and the movable contact can be in contact or non-contact with a fixed contact; and a housing having a hot gas generated when the movable contact is disconnected from the fixed contact is discharged to the outside The housing is in the contact direction where the movable contact and the fixed contact are in contact and non-contact directions. The movable contact has an inlet for introducing hot gas into the exhaust path.
本發明之電磁接觸器係藉由在可動接點側具有將熱氣體導入至排氣路之導入口，熱氣體之排氣路徑會變長，且可提升熱氣體被排出為止之冷卻效果，因此可抑制熱氣體排出至裝置外的排出量。 The electromagnetic contactor of the present invention has an inlet for introducing hot gas into the exhaust path on the movable contact side, the exhaust path of the hot gas becomes longer, and the cooling effect until the hot gas is discharged can be improved. The amount of hot gas discharged to the outside of the device can be suppressed.
1‧‧‧電磁接觸器 1‧‧‧ electromagnetic contactor
10‧‧‧接點部 10‧‧‧Contact Department
11‧‧‧電弧罩 11‧‧‧arc
12‧‧‧端子 12‧‧‧Terminal
13‧‧‧排氣口 13‧‧‧ exhaust port
20‧‧‧驅動部 20‧‧‧Driver
30‧‧‧可動接觸件 30‧‧‧ movable contact
30a‧‧‧可動接點 30a‧‧‧movable contact
31‧‧‧下表面 31‧‧‧ lower surface
40‧‧‧固定接觸件 40‧‧‧Fixed contacts
40a‧‧‧固定接點 40a‧‧‧Fixed contact
41‧‧‧連接部 41‧‧‧Connection Department
42‧‧‧支持部 42‧‧‧Support Department
43‧‧‧上表面 43‧‧‧ top surface
50‧‧‧電弧流道 50‧‧‧arc runner
51‧‧‧下底部 51‧‧‧ bottom
52‧‧‧立起部 52‧‧‧Stand up
53‧‧‧前端部 53‧‧‧Front end
53a‧‧‧上表面 53a‧‧‧upper surface
60‧‧‧電弧角材 60‧‧‧ Arc Angle
61‧‧‧包圍部 61‧‧‧ Surrounding Department
61a‧‧‧板部 61a‧‧‧ Board
61b‧‧‧臂部 61b‧‧‧arm
61c‧‧‧臂部 61c‧‧‧arm
62‧‧‧對向部 62‧‧‧ Opposing Department
63‧‧‧前端部 63‧‧‧ front end
63a‧‧‧下表面 63a‧‧‧lower surface
70‧‧‧消弧柵極群 70‧‧‧ Arc suppression grid group
70a至70f‧‧‧消弧柵極 70a to 70f
70ad‧‧‧下表面 70ad‧‧‧lower surface
70fa‧‧‧上表面 70fa‧‧‧ Top surface
80、80A‧‧‧柵極機殼 80, 80A‧‧‧ Grid Case
81‧‧‧底壁部 81‧‧‧ bottom wall
81a‧‧‧開縫 81a‧‧‧Slit
81b至81d‧‧‧導入口 81b to 81d‧‧‧Inlet
81e‧‧‧凹部 81e‧‧‧Concave
81f‧‧‧上端部 81f‧‧‧ upper end
81g‧‧‧下端部 81g‧‧‧ lower end
81h‧‧‧側端部 81h‧‧‧side end
81i至81j‧‧‧進路變更部(路徑延長構件) 81i to 81j‧‧‧ route change section (path extension member)
82‧‧‧側壁部 82‧‧‧ sidewall
82a至82f‧‧‧收容溝 82a to 82f‧‧‧ Containment Ditch
83‧‧‧上壁部 83‧‧‧ Upper wall
83a‧‧‧***孔 83a‧‧‧Insertion hole
Arc1‧‧‧電弧 Arc1‧‧‧arc
B-B‧‧‧對稱軸 B-B‧‧‧Symmetry axis
P‧‧‧排氣路 P‧‧‧Exhaust
第1圖係顯示本發明之電磁接觸器之實施形態1之整體之外觀構造的立體圖。 FIG. 1 is a perspective view showing the overall external appearance structure of Embodiment 1 of the electromagnetic contactor of the present invention.
第2圖係顯示構成本發明之電磁接觸器之實施形態1的接點部之立體構造的立體圖。 Fig. 2 is a perspective view showing a three-dimensional structure of a contact portion constituting the first embodiment of the electromagnetic contactor of the present invention.
第3圖係顯示構成本發明之電磁接觸器之實施形態1的消弧室之內部構造的立體圖。 Fig. 3 is a perspective view showing the internal structure of the arc extinguishing chamber constituting the first embodiment of the electromagnetic contactor of the present invention.
第4圖係顯示構成本發明之電磁接觸器之實施形態1的消弧室之內部構造的剖面圖。 Fig. 4 is a sectional view showing the internal structure of an arc extinguishing chamber constituting the first embodiment of the electromagnetic contactor of the present invention.
第5圖係顯示構成本發明之電磁接觸器之實施形態1的柵極之構造的立體圖。 Fig. 5 is a perspective view showing a structure of a grid constituting the first embodiment of the electromagnetic contactor of the present invention.
第6圖係用以說明本發明之電磁接觸器之實施形態1之動作的剖視圖。 Fig. 6 is a sectional view for explaining the operation of the first embodiment of the electromagnetic contactor of the present invention.
第7圖係顯示構成本發明之電磁接觸器之實施形態2之柵極機殼之構造的立體圖。 Fig. 7 is a perspective view showing the structure of a grid case constituting the second embodiment of the electromagnetic contactor of the present invention.
以下，利用第1圖至第7圖詳細地說明本發明之電磁接觸器之各實施形態。此外，本發明並非藉由下述實施形態所限定者。 Hereinafter, each embodiment of the electromagnetic contactor of the present invention will be described in detail with reference to FIGS. 1 to 7. The present invention is not limited by the following embodiments.
實施形態1 Embodiment 1
第1圖係顯示實施形態1之電磁接觸器整體之外觀構造的立體圖。第2圖係顯示構成實施形態1之電磁接觸器之接點部之斜視構造的立體圖。第3圖及第4圖係構成實施形態1之電磁接觸器之消弧室之內部構造的立體圖及剖面圖。第5圖係顯示構成實施形態1之電磁接觸器的柵極之構造的立體圖。第6圖係用以說明實施形態1之電磁接觸器之動作的剖視圖。此外，如第1圖至第6圖所示，將上下方向、深度方向及寬度方向定義為彼此正交之方向。亦即，分別將後述之可動接點與固定接點為接觸及非接觸之方向定義為上下方向，將橫越上下方向之方向且為沿著可動接觸件之長邊方向的方向定義為寬度方向，將橫越上下方向之方向且為可動接觸件之短邊方向的方向定義為深度方向。 Fig. 1 is a perspective view showing the overall external appearance structure of the electromagnetic contactor of the first embodiment. Fig. 2 is a perspective view showing a perspective structure of a contact portion constituting the electromagnetic contactor of the first embodiment. 3 and 4 are a perspective view and a cross-sectional view of the internal structure of the arc-extinguishing chamber of the electromagnetic contactor of the first embodiment. Fig. 5 is a perspective view showing a structure of a grid constituting the electromagnetic contactor of the first embodiment. Fig. 6 is a sectional view for explaining the operation of the electromagnetic contactor of the first embodiment. In addition, as shown in FIGS. 1 to 6, the vertical direction, the depth direction, and the width direction are defined as directions orthogonal to each other. That is, the directions in which the movable contact and the fixed contact described below are in contact and non-contact are defined as the up-down direction, and the direction crossing the up-down direction and the direction along the long side direction of the movable contact are defined as the width direction. , The direction that traverses the up-down direction and the short-side direction of the movable contact is defined as the depth direction.
針對電磁接觸器1之構成及功能加以說明。如第1圖所示，電磁接觸器1係基本上具備下述構件而構成：複數個接點部10，係構成收容後述之可動接觸件30及固定接觸件40等(在第1圖中省略圖示)的消弧室；以及驅動部20，係收容藉由電磁力將該等接點部10所收容之可動接觸件30朝上下方向驅動之未圖示之電磁鐵等。此外，本實施形態之電磁接 觸器1雖具備三個接點部10，但個數係可適當地變更。並且，由於該等複數個接點部10係相同之構成，因此以下不區別地進行說明。 The structure and function of the electromagnetic contactor 1 will be described. As shown in FIG. 1, the electromagnetic contactor 1 basically includes the following components: a plurality of contact portions 10 configured to accommodate a movable contact 30 and a fixed contact 40 described later (omitted in FIG. 1). The arc extinguishing chamber shown in the figure) and the driving unit 20 are electromagnets (not shown) which drive the movable contact pieces 30 accommodated in the contact portions 10 in the vertical direction by electromagnetic force. In addition, the electromagnetic connection of this embodiment Although the contactor 1 includes three contact portions 10, the number of contacts 1 can be appropriately changed. In addition, since the plurality of contact portions 10 have the same configuration, the following description will be made without distinction.
如第2圖所示，接點部10係具有長方體形狀之電弧罩11，及在電弧罩11之上下方向下端朝外部突出之板狀的端子12。端子12係在使電流流通至未圖示之接觸器的主斷開之際供使用者進行配線者，且例如銅系金屬所構成，在電弧罩11內，固定接觸件40(在第2圖中省略圖示)係載置在該端子12上且電性連接。在電弧罩11中，形成有複數個排氣口13，該等排氣口13係用以將在可動接點30a與固定接點40a(在第2圖中皆省略圖示)之接點斷開時產生的熱氣體排出至該電弧罩11之外，亦即排出至該裝置1之外。此外，在本實施形態中，排氣口13係分別在與寬度方向相對向之面各形成五個，惟形成之個數係可適當地變更。並且，電弧罩11及後述之柵極機殼80係相當於申請專利範圍所述之殼體。 As shown in FIG. 2, the contact portion 10 is an arc shield 11 having a rectangular parallelepiped shape, and a plate-shaped terminal 12 protruding downward from above and below the arc shield 11 toward the outside. The terminal 12 is provided by a user for wiring when a current is passed to a main disconnector of a contactor (not shown), and is made of, for example, a copper-based metal. A contact 40 is fixed in the arc cover 11 (see FIG. 2). (Not shown) is placed on the terminal 12 and is electrically connected. In the arc cover 11, a plurality of exhaust ports 13 are formed. These exhaust ports 13 are used to break the contacts between the movable contact 30a and the fixed contact 40a (both are not shown in the second figure). The hot gas generated during the opening is discharged outside the arc cover 11, that is, outside the device 1. In addition, in the present embodiment, the exhaust ports 13 are each formed with five on each of the surfaces facing the width direction, but the number of the exhaust ports 13 may be changed as appropriate. The arc shield 11 and a later-described grid case 80 are equivalent to the cases described in the scope of the patent application.
如第3圖及第4圖所示，在構成於接點部10之電弧罩11之內部的消弧室，皆收容有後述之可動接觸件30、固定接觸件40、電弧流道50、電弧角材60及支持消弧柵極群70之柵極機殼80。在本實施形態中，除了可動接觸件30及電弧角材60之外，第4圖係以一點鏈線所示之對稱軸A-A為中心，分別在寬度方向對稱地配置有一組固定接觸件40、一組電弧流道50、一組消弧柵極群60及一組柵極機殼70。以下，將在寬度方向朝向對稱軸A-A的方向稱為寬度方向內側，將在寬度方向遠離對稱軸A-A之方向稱為寬度方向外側。 As shown in FIGS. 3 and 4, in the arc extinguishing chamber formed inside the arc cover 11 of the contact portion 10, a movable contact 30, a fixed contact 40, an arc runner 50, and an arc described later are all housed. Angle 60 and grid housing 80 supporting arc suppression grid group 70. In the present embodiment, in addition to the movable contact 30 and the arc angle 60, the fourth figure is a group of fixed contacts 40, one symmetrically arranged in the width direction around the axis of symmetry AA shown by a one-dot chain line. A group of arc runners 50, a group of arc suppression grids 60, and a group of grid housings 70. Hereinafter, a direction toward the axis of symmetry A-A in the width direction is referred to as the widthwise inner side, and a direction away from the axis of symmetry A-A in the width direction is referred to as the widthwise outer side.
可動接觸件30係如第3圖及第4圖所示形成為例如板狀，在屬於上下方向下方側之面的下表面31中之長邊方向(亦即寬度方向)的兩端部，分別設置有以例如銅系之金屬材料形成為板狀的可動接點30a。可動接觸件30係構成為：藉由利用驅動部20所產生之電磁力所驅動，且可 相對於固定接觸件40之固定接點40a在上下方向接觸或非接觸。並且，固定接觸件40係構成為具有：載置在板狀之端子12上的平板狀之連接部41；及從連接部41之寬度方向內側之端部朝上下方向上方延伸且支持固定接點40a的支持部42。在構成固定接觸件40之屬於支持部42之上下方向上方之面的上表面43，設置有以例如銅系之金屬材料形成為板狀之固定接點40a。此外，可動接觸件30及固定接觸件40之形狀並不限定於本實施形態之形狀，且可適當地變更。 The movable contact 30 is formed in a plate shape, for example, as shown in FIGS. 3 and 4, and has two ends in the longitudinal direction (that is, in the width direction) of the lower surface 31 that belongs to the surface on the lower side in the vertical direction. A movable contact 30a formed in a plate shape using, for example, a copper-based metal material is provided. The movable contact 30 is configured to be driven by using the electromagnetic force generated by the driving section 20 and can be The fixed contact 40 a with respect to the fixed contact 40 is in contact or non-contact in the vertical direction. In addition, the fixed contact 40 is configured to include: a flat plate-shaped connection portion 41 placed on the plate-shaped terminal 12; and an upside-down direction extending from an end portion on the inner side in the width direction of the connection portion 41 to support a fixed contact. 40a 的 保护 部 42。 40a of the support section 42. On the upper surface 43 constituting the fixed contact 40, which is a surface above and below the support portion 42, a fixed contact 40 a formed of a copper-based metal material in a plate shape is provided. In addition, the shapes of the movable contact 30 and the fixed contact 40 are not limited to the shapes of this embodiment, and can be appropriately changed.
電弧流道50係構成為具有：載置在屬於固定接觸件40之連接部41之上下方向上方之面的上表面之板狀的下底部51；從該下底部51之寬度方向內側的端部朝上下方向上方延伸之立起部52；以及屬於該立起部52之上下方向上方之端部，且從接近於固定接點40a之位置朝寬度方向外側延伸之前端部53。藉由如此方式構成，電弧流道50係形成為從深度方向觀看之剖面ㄇ字形。再者，一對之前端部53係以使深度方向之距離縮短之方式，從接近與固定接點40a之深度方向相對向之對邊的位置朝向寬度方向外側延伸而形成。藉由如上方式形成，電弧流道50係形成為從上下方向上方觀看呈俯面視大致U字狀。此外，針對於動作係如後述，電弧流道50係當在可動接點30a與固定接點40a之接點斷開時電弧產生時，使所產生之電弧朝寬度方向外側驅動並使之延伸，到達後述之消弧柵極群70(特別是配置在上下方向下方之消弧柵極70a至70c)為止，以冷卻電弧。此外，電弧流道50之形狀並不限於本實施形態之形狀，而可適當地變更。 The arc runner 50 is configured to have a plate-shaped lower bottom portion 51 placed on the upper surface of the upper and lower direction of the connection portion 41 belonging to the fixed contact 40, and an end portion inward from the width direction of the lower bottom portion 51. A rising portion 52 extending upward in the up-down direction; and a front end portion 53 extending from the position close to the fixed contact 40a toward the outer side in the width direction and belonging to an end portion of the rising portion 52 in the upward-downward direction. With such a configuration, the arc runner 50 is formed in a cross-sectional cross-sectional shape when viewed from the depth direction. In addition, the pair of front end portions 53 is formed so as to shorten the distance in the depth direction from a position close to the opposite side to the depth direction of the fixed contact 40a toward the outside in the width direction. Formed as described above, the arc runner 50 is formed in a substantially U-shape when viewed from above in an upward direction. In addition, as for the operation system, as described later, when the arc is generated when the movable contact 30a is disconnected from the fixed contact 40a, the generated arc is driven to extend outward in the width direction. The arc extinguishing grid group 70 (in particular, the arc extinguishing grids 70a to 70c arranged below and in the up-down direction) is reached to cool the arc. In addition, the shape of the arc flow path 50 is not limited to the shape of this embodiment, and can be appropriately changed.
電弧角材60係如第3圖及第4圖所示，構成為具有：包圍可動接觸件30之包圍部61；相對於電弧流道50之前端部53於上下方向相對向之對向部62；朝寬度方向外側延伸，並且相對於消弧柵極群70(詳細而言為消弧柵極70f)於上下方向相對向之前端部63。其中，包圍部61 係構成為具有：形成為板狀之板部61a；從於板部61a之寬度方向相對向之2邊朝上下方向延伸，且連接在對向部62之臂部61b；及從於板部61a之深度方向相對向之2邊朝上下方向下方延伸且彼此地連接之臂部61c。電弧角材60係由於包圍部61具有板部61a、臂部61b及臂部61c，因而以包含以符號U所示之大致U字形狀的方式形成。並且，雖如後述針對動作加以說明，但電弧角材60係當在可動接點30a與固定接點40a之接點斷開時電弧產生時，使所產生之電弧朝上下方向上方驅動並使之延伸，到達後述之消弧柵極群70(特別是配置在上下方向上方之消弧柵極70d至70f)為止，以冷卻電弧。此外，電弧角材60之形狀並不限於本實施形態之形狀，而可適當地變更。 As shown in FIGS. 3 and 4, the arc angle bar 60 is configured to include a surrounding portion 61 surrounding the movable contact 30, and an opposite portion 62 opposed to the front end portion 53 of the arc runner 50 in the up-down direction; It extends outward in the width direction and faces the front end portion 63 in the up-down direction with respect to the arc-extinguishing grid group 70 (more specifically, the arc-extinguishing grid 70f). Among them, the surrounding portion 61 The system is composed of a plate portion 61a formed in a plate shape, two arm portions 61b extending from the opposite sides of the width direction of the plate portion 61a toward the up and down direction, and connected to the arm portion 61b of the facing portion 62, and a plate portion 61a. The arm portions 61 c extending in the depth direction with respect to the two sides opposite to each other are extended downward and connected to each other. The arc angle material 60 is formed so as to include a substantially U-shape as shown by the symbol U because the surrounding portion 61 includes a plate portion 61a, an arm portion 61b, and an arm portion 61c. In addition, although the operation will be described as described later, when the arc angle 60 is generated when the movable contact 30a and the fixed contact 40a are disconnected, the generated arc is driven upward and extended upward and downward. To reach the arc-extinguishing grid group 70 described later (especially the arc-extinguishing grids 70d to 70f arranged above and below the vertical direction) to cool the arc. In addition, the shape of the arc angle 60 is not limited to the shape of this embodiment, and can be appropriately changed.
消弧柵極群70係以由複數個(例如6個)之磁性體所構成之相同之板狀的消弧柵極70a至70f分別在上下方向從下方依序往上方彼此隔開達預定間隔L1而重疊的方式排列，且藉由柵極機殼80所支持，並且配置在比可動接点30a及固定接点40a更靠近寬度方向外側之處。詳細而言，消弧柵極群70中之配置在上下方向之最下方處的消弧柵極70a，係以使屬於該消弧柵極70a之上下方向下方之面的下表面70ad及屬於電弧流道50之前端部53之上下方向上方之面的上表面53a隔開與上述預定間隔L1相同之間隔而相對向之方式，藉由柵極機殼80所支持。並且，消弧柵極群70中之配置在上下方向之最上方的消弧柵極70f，係以使屬於該消弧柵極70f之上下方向上方之面的上表面70fa及屬於電弧角材60之前端部63的上下方向之下方的面之下表面63a隔開與上述預定間隔L1相同之間隔而相對向之方式，藉由柵極機殼80所支持。 The arc extinguishing grid group 70 is formed by a plurality of (for example, six) magnetic bodies of the same plate-shaped arc extinguishing grids 70a to 70f, which are spaced apart from each other in a vertical direction from the bottom to the top in a predetermined interval. L1 is arranged in an overlapping manner, is supported by the gate case 80, and is arranged closer to the outer side in the width direction than the movable contact 30a and the fixed contact 40a. In detail, the arc-extinguishing grid 70a in the arc-extinguishing grid group 70 arranged at the lowermost position in the up-down direction is such that the lower surface 70ad belonging to the surface above and below the arc-extinguishing grid 70a and the arc The upper surface 53a of the upper surface in the up-down direction of the front end portion 53 of the flow channel 50 is opposed by the same interval as the above-mentioned predetermined interval L1, and is supported by the gate case 80. The arc-extinguishing grid 70f in the arc-extinguishing grid group 70 disposed at the uppermost position in the up-down direction is such that the upper surface 70fa belonging to the surface above and below the arc-extinguishing grid 70f and the arc angle 60 The lower surface 63 a of the front end portion 63 in the up-down direction is opposed to each other by the same interval as the predetermined interval L1 described above, and is supported by the gate case 80.
如第5圖所示，在屬於柵極機殼80之側壁部82之內側之表面的內表面，複數(例如6組)之收容溝82a至82f係分別在上下方向從下 方依序往上方彼此隔開達預定間隔L2而形成，藉由使消弧柵極70a至70f收容在該等收容溝82a至82f，消弧柵極70a至70f係如上方式被支持。此外，預定間隔L2係與構成上述消弧柵極群70之消弧柵極70a至70f的厚度大致相同。在屬於柵極機殼80之上壁部83之內側之表面的內表面，形成有***孔83a，且藉由將電弧角材60之前端部63***至該***孔83a，電弧角材60係如上述方式被支持。 As shown in FIG. 5, a plurality of (for example, 6 sets) of receiving grooves 82 a to 82 f on the inner surface of the inner surface belonging to the inner side of the side wall portion 82 of the gate housing 80 are from up to down, respectively. The squares are formed to be spaced apart from each other by a predetermined interval L2 in order. The arc-extinguishing grids 70a to 70f are accommodated in the receiving grooves 82a to 82f, and the arc-extinguishing grids 70a to 70f are supported as described above. The predetermined interval L2 is substantially the same as the thickness of the arc-extinguishing grids 70a to 70f constituting the arc-extinguishing grid group 70 described above. An insertion hole 83a is formed on the inner surface of the surface which is the inner side of the upper wall portion 83 of the gate housing 80, and the arc angle material 60 is as described above by inserting the front end portion 63 of the arc angle material 60 into the insertion hole 83a. The way is supported.
此外，針對動作如後述，消弧柵極群70係當在可動接點30a與固定接點40a之接點斷開時產生之電弧藉由上述電弧流道50及電弧角材60等而被驅動且被拉伸而接觸於該消弧柵極群70時，將該接觸之電弧予以分斷而消弧。 The operation of the arc-extinguishing grid group 70 is described below. The arc generated when the movable contact 30a is disconnected from the fixed contact 40a is driven by the arc runner 50 and the arc angle 60, and When stretched to contact the arc-extinguishing grid group 70, the contacted arc is interrupted and arc-extinguished.
並且，在屬於柵極機殼80之底壁部81的內側表面之內表面，於彼此在寬度方向隔開達預定間隔之位置形成有朝上下方向延伸之預定深度的複數個(例如4個)開縫81a。即使消弧柵極70a至70f被收容於收容溝82a至82f，開縫81a亦不會藉由該等消弧柵極70a至70f而被閉塞，而可供後述之熱氣體通過。 In addition, a plurality of (for example, four) predetermined depths extending in the up-down direction are formed on the inner surface of the inner surface of the bottom wall portion 81 of the gate housing 80 at positions spaced apart from each other in the width direction by a predetermined interval. Slit 81a. Even if the arc-extinguishing grids 70a to 70f are contained in the receiving grooves 82a to 82f, the slit 81a will not be blocked by the arc-extinguishing grids 70a to 70f, and can be passed by the hot gas described later.
並且，在開縫81a之上下方向上方亦即接觸方向於可動接點30a側之預定位置，形成有連通內表面與外表面之導入口81b至81d。其中，導入口81b係形成在相對於消弧柵極70d與消弧柵極70e之上下方向的間隙於寬度方向相對向之位置，導入口81c係形成在相對於消弧柵極70e與消弧柵極70f之上下方向的間隙於寬度方向相對向之位置，導入口81d係形成在相對於消弧柵極70f與電弧角材80之前端部63之間的間隙於寬度方向相對向之位置。 In addition, introduction openings 81b to 81d that communicate the inner surface and the outer surface are formed at predetermined positions above and below the slit 81a, that is, in a contact direction on the movable contact 30a side. Among them, the introduction port 81b is formed at a position opposite to the width direction with respect to the gap between the arc suppression grid 70d and the arc suppression grid 70e, and the introduction port 81c is formed between the arc suppression grid 70e and the arc suppression grid. The gap in the up-down direction of the grid 70f is opposite to the width direction, and the introduction port 81d is formed at a position facing the width in the gap between the arc-extinguishing grid 70f and the front end portion 63 of the arc angle 80.
並且，如第3圖所示，在柵極機殼80之底壁部81的外表面形成有凹部81e。當柵極機殼80收容在電弧機殼11時，如第4圖所示， 藉由設置在電弧機殼11之內表面及柵極機殼80之底壁部81之外表面的凹部81e，來構成間隙亦即排氣路P。由於如上述方式構成，因此成為朝上下方向延伸之通路。 Further, as shown in FIG. 3, a concave portion 81 e is formed on the outer surface of the bottom wall portion 81 of the gate case 80. When the grid case 80 is housed in the arc case 11, as shown in FIG. 4, The recess 81 e provided on the inner surface of the arc housing 11 and the outer surface of the bottom wall portion 81 of the gate housing 80 constitutes a gap, that is, an exhaust passage P. Since it is comprised as mentioned above, it becomes a path | route which extends to an up-down direction.
並且，如第4圖所示，凹部81e之上端部81f係形成為位在比相對於電弧角材60之前端部63與消弧柵極70f之上下方向的間隙於寬度方向相對向之位置更靠近上下方向上方之處。換言之，導入口81b至81d係位在比屬於排氣路P之可動接點30a側之前端的上端部81f更靠近固定接點40a側之處。此外，針對動作如後述，藉由如上方式形成，在可動接點30a及固定接點40a之接點斷開時產生且從導入口81b至81d導入至排氣路P的熱氣體係在比導入口81d更靠近上下方向上方之處滯留。於是，藉由先被導入而滯留之熱氣體與後來被導入之熱氣體相碰撞，熱氣體之能量會減少，結果熱氣體排出至該裝置外的排氣量會減少。 In addition, as shown in FIG. 4, the upper end portion 81f of the recessed portion 81e is formed closer to the width direction than the gap between the front end portion 63 of the arc angle 60 and the arc extinguishing grid 70f. Up and down. In other words, the introduction ports 81b to 81d are located closer to the fixed contact 40a side than the upper end portion 81f of the front end of the movable contact 30a side of the exhaust path P. In addition, as described later, the operation is formed as described above, and the hot gas system generated when the contacts of the movable contact 30a and the fixed contact 40a are disconnected and introduced into the exhaust passage P from the inlets 81b to 81d is more efficient than the inlet 81d stayed closer to the up and down direction. As a result, by retaining the hot gas that is introduced first and the hot gas that is introduced later colliding, the energy of the hot gas is reduced, and as a result, the amount of exhaust gas discharged to the outside of the device is reduced.
同樣地，凹部81e之下端部81g係以位在形成於電弧罩11之排氣口13之上下方向下方的方式形成。換言之，排氣口13係位在比屬於排氣路P之固定接點40a側之前端的下端部81g更靠近可動接點30a側之處。此外，針對動作如後述，藉由如上方式形成，在可動接點30a及固定接點40a之接點斷開時產生且從導入口81b至81d導入至排氣路P的熱氣體係在比排氣口13更靠近上下方向下方之處滯留。於是，藉由先被導入而滯留之熱氣體與後來被導入之熱氣體相碰撞，熱氣體之能量會減少，結果熱氣體排出至該裝置外之排氣量會減少。 Similarly, the lower end part 81g of the recessed part 81e is formed so that it may be located in the downward direction of the exhaust port 13 formed in the arc cover 11. As shown in FIG. In other words, the exhaust port 13 is located closer to the movable contact 30a side than the lower end portion 81g of the front end of the fixed contact 40a side of the exhaust path P. In addition, as described below, the operation is formed as described above, and the hot gas system generated when the contacts of the movable contact 30a and the fixed contact 40a are disconnected and introduced into the exhaust passage P from the inlets 81b to 81d is more exhaust than the exhaust gas. The mouth 13 stays closer to the lower direction. Thus, by retaining the hot gas that is introduced first and the hot gas that is introduced later colliding, the energy of the hot gas is reduced, and as a result, the amount of exhaust gas that is discharged outside the device is reduced.
此外，針對動作如後述，『構成消弧柵極群70之複數個消弧柵極70a至70f間→形成在柵極機殼80之上述開縫81a→形成在柵極機殼80之上述導入口81b及81c→藉由電弧罩11及柵極機殼80所構成之上述排氣路P→形成在電弧罩11之上述排氣口13』，及『構成消弧柵極群70 之複數個消弧柵極70f與電弧角材60之前端部63之間→形成在柵極機殼80之上述導入口81d→藉由電弧罩11及柵極機殼80所構成之上述排氣路P→形成在電弧罩11之上述排氣口13』係成為在可動接點30a與固定接點40a之接點斷開時所產生之熱氣體的排氣路徑。在本實施形態中，雖以電弧罩11及柵極機殼80之複數個構件來構成殼體，但並不限於該構成，亦能以單一之構件來做成電弧罩11及柵極機殼80而構成殼體。 In addition, the operation will be described later, "between the plurality of arc-extinguishing grids 70a to 70f constituting the arc-extinguishing grid group 70 → the above-mentioned slit 81a formed in the gate case 80 → the aforementioned introduction formed in the gate case 80 Ports 81b and 81c → The above-mentioned exhaust path P formed by the arc cover 11 and the grid casing 80 → The above-mentioned exhaust port 13 formed in the arc cover 11 ", and" the arc-extinguishing grid group 70 " Between the plurality of arc-extinguishing grids 70f and the front end 63 of the arc angle 60 → the above-mentioned inlet 81d formed in the grid case 80 → the above-mentioned exhaust path formed by the arc cover 11 and the grid case 80 P → The exhaust port 13 ′ formed in the arc cover 11 is an exhaust path for hot gas generated when the movable contact 30 a is disconnected from the fixed contact 40 a. In the present embodiment, although the housing is constituted by a plurality of members of the arc shield 11 and the gate housing 80, the structure is not limited to this structure, and the arc shield 11 and the grid housing can also be formed by a single member. 80 and constitute the shell.
針對如以上方式構成之電磁接觸器1的動作及效果，利用第6圖來進行說明。在可動接點30a及固定接點40a接觸且通電之狀態下，當可動接點30a與固定接點40a相隔開時(接點斷開時)，在該等可動接點30a及固定接點40a間會產生電弧Arc1。詳細而言，在可動接點30a從固定接點40a分離之際，由於接觸面積會變小，因此電阻值會變大。由於電阻值會變大，因此在接點會產生熱，起因於所產生之熱，接點之一部分會熔解，而產生金屬蒸氣(亦即熱氣體)。並且，該熱氣體被冷卻之一部分會成為電弧。如此，在接點斷開時，會產生電弧及熱氣體。 The operation and effect of the electromagnetic contactor 1 configured as described above will be described with reference to FIG. 6. When the movable contact 30a and the fixed contact 40a are in contact and energized, when the movable contact 30a is separated from the fixed contact 40a (when the contact is disconnected), the movable contact 30a and the fixed contact 40a An arc Arc1 will occur in between. Specifically, when the movable contact 30a is separated from the fixed contact 40a, the contact area becomes smaller, and therefore the resistance value becomes larger. Because the resistance value will increase, heat will be generated at the contact. Due to the heat generated, a part of the contact will melt, and metal vapor (that is, hot gas) will be generated. In addition, a part of the hot gas being cooled becomes an arc. In this way, when the contact is disconnected, an arc and hot gas are generated.
如上所述，在本實施形態中，電磁接觸器1係具備電弧流道50，該電弧流道50係如上所述形成為俯視大致U字形，因此依據公知之去離子之原理使往寬度方向外側之驅動力產生。藉由該驅動力，所產生之電弧Arc1係如電弧Arc2，朝寬度方向外側被驅動且被拉伸，並到達消弧柵極群70(特別是配置在上下方向下方之消弧柵極70a至70c)而被分斷、消弧。 As described above, in the present embodiment, the electromagnetic contactor 1 is provided with the arc flow path 50. As described above, the arc flow path 50 is formed in a generally U-shape in plan view. The driving force is generated. By this driving force, the generated arc Arc1 is like the arc Arc2, is driven and stretched outward in the width direction, and reaches the arc suppression grid group 70 (especially the arc suppression grids 70a to 60 70c) while being cut off and extinguished.
再者，如上所述，在本實施形態中，電磁接觸器1係具備電弧角材60，該電弧角材60係形成為包含有如上所述以第3圖中符號U所示大致U字形的形狀，因此依據公知之去離子的原理而使朝上下方向上方之驅動力產生。藉由該驅動力，所產生之電弧Arc1係朝上下方向上方被驅 動且被拉伸，並到達消弧柵極群70(特別是配置在上下方向上方之消弧柵極70d至70f)而被分斷、消弧。 In addition, as described above, in this embodiment, the electromagnetic contactor 1 is provided with the arc angle 60, and the arc angle 60 is formed to include a substantially U-shape as indicated by the symbol U in FIG. 3 as described above. Therefore, a driving force in an upward and downward direction is generated in accordance with a known principle of deionization. With this driving force, the generated arc Arc1 is driven upward and downward. It moves and is stretched, and reaches the arc-extinguishing grid group 70 (especially, the arc-extinguishing grids 70d to 70f arranged above and below) to be cut off and arc-extinguished.
所產生之熱氣體係金屬蒸氣，因此係具有導電性之高溫氣體。持續滯留在固定接點40a周邊時，電弧會變得難以冷卻而使消弧延遲，因而需要有用以使所產生之熱氣體遠離接點周邊之排氣路。在習知技術中，往將熱氣體排出至裝置外之排氣路的導入口係接近熱氣體之產生位置(固定接點)的構造。因此，至熱氣體排氣至裝置外為止的排氣路徑之長度會變短，而無法充分地將熱氣體予以冷卻，甚至有無法充分地抑制熱氣體排出至該裝置外之排氣量(體積)的可能性。並且，如第1圖所示，該裝置係大多與相同之裝置相鄰接而配置複數個。在無法充分地抑制熱氣體之排氣量(體積)的習知裝置中，當大量地排出至裝置外時，可能會發生從該裝置排出且擴展之熱氣體和從與該裝置相鄰接而配置之裝置排出而擴展之熱氣體相接觸，且經由該等接觸之熱氣體導致該裝置之接點與該裝置相鄰接而配置之裝置的接點導通之事態(亦即相間短路)。以往，藉由使消弧室大型化，或使相鄰接之裝置彼此相隔開而設置等充分地保有空間之措施，即使無法充分地抑制熱氣體之排氣量(體積)，亦不會發生裝置彼此導通之事態。因此，無法使組裝有該裝置之機械裝置或控制盤等小型化。 The generated hot gas system is metal vapor, so it is a high-temperature gas with conductivity. When staying around the fixed contact 40a, the arc becomes difficult to cool and delays the arc extinguishing. Therefore, it is necessary to keep the generated hot gas away from the exhaust path around the contact. In the conventional technology, the introduction port to the exhaust path that discharges the hot gas to the outside of the device has a structure close to the hot gas generation position (fixed contact). Therefore, the length of the exhaust path until the hot gas is exhausted to the outside of the device becomes shorter, and the hot gas cannot be sufficiently cooled, and even the exhaust gas volume (volume, which is not sufficient to prevent the hot gas from being discharged outside the device) can be sufficiently suppressed. ). In addition, as shown in FIG. 1, many of the devices are arranged adjacent to the same device. In a conventional device in which the exhaust gas volume (volume) of the hot gas cannot be sufficiently suppressed, when a large amount is discharged to the outside of the device, the hot gas discharged from the device and expanded may occur from the adjacent device. The hot gas released and extended by the configured device is in contact with each other, and the hot gas passing through the contact causes the contact between the device and the device adjacent to the device to be connected (ie, a short circuit between phases). In the past, measures such as enlarging the arc-extinguishing chamber, or installing adjacent devices separated from each other to sufficiently maintain the space, did not occur even if the exhaust gas volume (volume) of the hot gas could not be sufficiently suppressed. The situation where the devices are connected to each other. Therefore, it is impossible to miniaturize a mechanical device, a control panel, and the like in which the device is incorporated.
此點，在本實施形態中，並非於柵極機殼80之上下方向在固定接點40a側設置導入口81b至81d(相當於習知技術)，而是在柵極機殼80之上下方向於可動接點30a側設置導入口81b至81d。藉此，由於可使熱氣體排氣至裝置外為止之在消弧室內經過的排氣路徑之長度比習知技術更長，因此可促進因摩擦損失所造成之熱氣體的能量消耗，且可充分地冷卻熱氣體，甚至可更進一步抑制熱氣體排出至該裝置外之排氣量(體積)。並且，由於可抑制熱氣體往該裝置外之排氣量，因此即使從該裝置排 出之熱氣體擴展，亦不容易與從相鄰接配置之裝置排出的熱氣體接觸，而可使該裝置之接點與和該裝置相鄰接配置之裝置的接點導通之事態不容易發生。亦即，可抑制相間短路之發生。因此，可使組裝有該裝置之機械裝置或控制盤等小型化。 At this point, in the present embodiment, the introduction ports 81b to 81d (corresponding to the conventional technology) are not provided on the fixed contact 40a side in the upper and lower directions of the gate case 80, but in the upper and lower directions of the gate case 80. Inlet ports 81b to 81d are provided on the movable contact 30a side. Therefore, since the length of the exhaust path passing through the arc suppression chamber until the hot gas is exhausted to the outside of the device is longer than the conventional technology, the energy consumption of the hot gas due to friction loss can be promoted, and the Sufficient cooling of the hot gas can even further suppress the exhaust gas volume (volume) from the hot gas being discharged outside the device. In addition, since the amount of hot gas exhausted outside the device can be suppressed, The expanded hot gas is not easy to contact with the hot gas exhausted from the device disposed adjacently, and it is not easy for the state of the device to be connected to the contact between the device and the device disposed adjacent to the device. . That is, it is possible to suppress the occurrence of an interphase short circuit. Therefore, it is possible to miniaturize a mechanical device or a control panel in which the device is incorporated.
具體而言，所產生之熱氣體的大部分係如第6圖之箭頭D1所示，通過電弧流道50之前端53與消弧柵極70a之上下方向的間隙、消弧柵極70a與消弧柵極70b之上下方向的間隙及消弧柵極70b與消弧柵極70c之上下方向的間隙，且與柵極機殼80之內表面碰撞。此時，供所產生之熱氣體的大部分通過之消弧柵極70a至70c側的壓力係會變高，同時僅供所產生之熱氣體的一部分通過之消弧柵極70d至70f側的壓力係會變低，且氣體係具有從壓力高之處流通至壓力低之處的性質，因此熱氣體係以朝壓力低之處擴散的方式擴展，熱氣體亦通過消弧柵極70d至70f側。如此，由於熱氣體往消弧柵極70d至70f之流路被確保，因此電弧Arc1係容易地被電弧角材60及上述流路驅動，且可使大多之消弧柵極驅動電弧，因此電流遮斷性能會提升。 Specifically, as shown by the arrow D1 in FIG. 6, most of the generated hot gas passes through the gap between the front end 53 of the arc runner 50 and the arc extinguishing grid 70a, and the arc extinguishing grid 70a and the The gap in the up-down direction of the arc grid 70b and the gap in the up-down direction of the arc-extinguishing grid 70b and the arc-extinguishing grid 70c collide with the inner surface of the gate case 80. At this time, the pressure on the sides of the arc-extinguishing grids 70a to 70c through which most of the generated hot gas passes will become high, and only a part of the generated hot gas will pass through the arc-extinguishing grids 70d to 70f. The pressure system will become low, and the gas system has the property of flowing from the high pressure to the low pressure. Therefore, the hot gas system spreads to the low pressure, and the hot gas also passes through the arc suppression grid 70d to 70f side. . In this way, since the flow path of the hot gas to the arc-extinguishing grids 70d to 70f is ensured, the arc Arc1 is easily driven by the arc angle 60 and the above-mentioned flow path, and most of the arc-extinguishing grids can drive the arc, so the current is shielded. The breaking performance will be improved.
通過電弧流道50及消弧柵極70a至70c且與柵極機殼80之內表面碰撞之熱氣體，係如第6圖箭頭D2所示改變行進方向，沿著形成在柵極機殼80之開縫81a移動。沿著開縫81a而移動之熱氣體係當到達導入口81b及82c時，如第6圖箭頭D3所示改變行進方向，並導入至藉由電弧罩11及柵極機殼80而構成之排氣路P。同樣地，通過消弧柵極70d至70f及電弧角材60之前端部63的熱氣體係從導入口81d導入至排氣路P。導入口81b至81d係位在比屬於排氣路P之可動接點30a側之前端的上端部81f更靠近固定接點40a側之處。因此，導入至排氣路P之熱氣體的一部分係如第6圖箭頭D31所示，朝向比導入口81b至81d更靠近上下 方向上方之處流動且與上端部81f碰撞而滯留。於是，先被導入而如上述方式滯留之熱氣體與後來被導入之熱氣體相碰撞，藉此熱氣體之能量會減少，結果熱氣體排氣至該裝置外的排氣量會減少。 The hot gas that passes through the arc runner 50 and the arc-extinguishing grids 70a to 70c and collides with the inner surface of the grid case 80 is changed in the direction of travel as shown by arrow D2 in FIG. 6 and is formed along the grid case 80 The slit 81a moves. When the hot gas system moving along the slit 81a reaches the inlets 81b and 82c, the direction of travel is changed as shown by arrow D3 in FIG. 6 and is introduced to the exhaust gas constituted by the arc cover 11 and the grid casing 80. Road P. Similarly, the hot gas system passing through the arc-extinguishing grids 70d to 70f and the front end portion 63 of the arc angle 60 is introduced into the exhaust passage P from the introduction port 81d. The introduction ports 81b to 81d are located closer to the fixed contact 40a side than the upper end portion 81f of the front end on the movable contact 30a side of the exhaust path P. Therefore, a part of the hot gas introduced into the exhaust path P is directed closer to the upper and lower sides than the introduction ports 81b to 81d as shown by an arrow D31 in FIG. 6. It flows upward and collides with the upper end portion 81f and stays. As a result, the hot gas introduced first and retained as described above collides with the hot gas introduced later, whereby the energy of the hot gas is reduced, and as a result, the amount of hot gas exhausted outside the device is reduced.
導入至排氣路P之熱氣體係整體如第6圖中以箭頭D4所示改變行進方向，沿著排氣路P而移動。排氣口13係位於比屬於排氣路P之固定接點40a側之前端的下端部81g更靠近可動接點30a側之處。因此，導入至排氣路P之熱氣體的一部分係如第6圖箭頭D51所示，朝向比排氣口13更靠近上下方向下方之處流動且與下端部81g碰撞而滯留。於是，先被導入而如上述方式滯留之熱氣體與後來被導入之熱氣體相碰撞，藉此熱氣體之能量會減少，結果熱氣體排氣至該裝置外的排氣量會減少。 The entire hot gas system introduced into the exhaust path P is changed along the exhaust path P as shown by arrow D4 in FIG. 6. The exhaust port 13 is located closer to the movable contact 30a side than the lower end portion 81g of the front end of the fixed contact 40a side of the exhaust path P. Therefore, a part of the hot gas introduced into the exhaust passage P flows toward the lower portion in the up-down direction than the exhaust port 13 as shown by an arrow D51 in FIG. 6 and collides with the lower end portion 81g to stay. As a result, the hot gas introduced first and retained as described above collides with the hot gas introduced later, whereby the energy of the hot gas is reduced, and as a result, the amount of hot gas exhausted outside the device is reduced.
並且，沿著排氣路P移動之熱氣體係當到達排出口13時，如第6圖箭頭D5所示改變行進方向，並從排氣路P排出。 When the hot gas system moving along the exhaust path P reaches the exhaust port 13, the traveling direction is changed as shown by arrow D5 in FIG. 6, and the exhaust gas is discharged from the exhaust path P.
實施形態2 Embodiment 2
本發明之電磁接觸器並非限定在實施形態1之構成者。第7圖係顯示構成本發明之電磁接觸器之實施形態2的柵極機殼之構成。柵極機殼80A之不同點在於，其具有與構成第1圖至第6圖所示之電磁接觸器的柵極機殼80類似之構成，且在柵極機殼80A之導入口81b至81d的上下方向下方具有進路變更部81i及81j。以下，主要針對與第1實施形態之構成的差異加以說明，對於相同之構成係標記相同之符號。並且，在本實施形態中，除了導入口81d及底壁部81之外，以第7圖中一點鏈線所示之對稱軸B-B為中心，各構成元件係分別朝深度方向對稱地配置。以後，將在深度方向朝向對稱軸B-B之方向稱為深度方向內側，將在深度方向從對稱軸B-B分離之方向稱為深度方向外側。 The electromagnetic contactor of the present invention is not limited to the constitution of the first embodiment. Fig. 7 shows the structure of a grid case constituting the second embodiment of the electromagnetic contactor of the present invention. The gate housing 80A differs in that it has a structure similar to that of the gate housing 80 constituting the electromagnetic contactor shown in FIGS. 1 to 6, and is provided at the inlets 81 b to 81 d of the gate housing 80A. In the up-down direction, there are path changing sections 81i and 81j. Hereinafter, the differences from the configuration of the first embodiment will be mainly described, and the same components are denoted by the same symbols. In addition, in this embodiment, with the exception of the introduction port 81d and the bottom wall portion 81, the constituent elements are symmetrically arranged in the depth direction around the axis of symmetry B-B shown by a one-dot chain line in FIG. 7. Hereinafter, the direction toward the symmetry axis B-B in the depth direction will be referred to as the depth direction inner side, and the direction separated from the symmetry axis B-B in the depth direction will be referred to as the depth direction outer side.
如第7圖所示，在柵極機殼80A之底壁部81的外表面形成有凹部81e，在該凹部81e形成有進路變更部81i及81j。詳細而言，進路變更部81i係形成為朝深度方向延伸之長方體形狀，且配置在從導入口81b與上下方向下方隔開達預定距離，從側端部81h與深度方向內方隔開達預定距離之位置。並且，二個進路變更部81j係配置在從進路變更部81i與上下方向下方隔開達預定距離之位置，且以前端彼此相對向之方式，形成為從側端部81h朝向深度方向內側延伸之長方體形狀。 As shown in FIG. 7, a recessed portion 81 e is formed on the outer surface of the bottom wall portion 81 of the gate housing 80A, and path changing portions 81 i and 81 j are formed in the recessed portion 81 e. In detail, the path changing portion 81i is formed in a rectangular parallelepiped shape extending in the depth direction, and is arranged at a predetermined distance from the introduction port 81b from below and up and down, and at a predetermined distance from the side end portion 81h from the depth direction. The location of the distance. In addition, the two route changing sections 81j are arranged at a predetermined distance from the route changing section 81i from the up and down direction, and are formed such that the front ends thereof face each other and extend from the side end portion 81h toward the inner side in the depth direction. Cuboid shape.
具備如以上方式構成之柵極機殼80A的電磁接觸器中，產生在可動接點30a與固定接點40a之接點斷開時的熱氣體係當如上方式從導入口81b至81d導入至排氣路P時，被導入之熱氣體係如第7圖箭頭D5所示，與屬於進路變更部81i之上下方向上方之面的上表面碰撞並在深度方向外側改變行進方向，改變行進方向後之熱氣體係與側端部81e碰撞且在上下方向下方改變行進方向。在上下方向下方改變行進方向之熱氣體係如第7圖箭頭D6所示，與屬於進路變更部81j之上下方向上方之面的上表面碰撞，且在深度方向內側改變行進方向而匯流，匯流之熱氣體係在二個進路變更部81j之相對向的前端之間朝上下方向下方行進。並且，從未圖示之排氣口13往裝置外排出。如此，藉由在柵極機殼80A之凹部80e內設置進路變更部81i及81j，而可使排氣路徑延長，而可藉由冷卻效果更減少排出至裝置外之熱氣體排氣量。此外，進路變更部81i及81j並不限定於長方體形狀等之形狀，亦可形成為例如突起狀。其精神在於，進路變更部81i及81j係只要為在排氣路P之內部可使熱氣體之排氣路徑的形狀，則可為任意形狀，相當於申請專利範圍之路徑延長構件。 In the electromagnetic contactor provided with the gate case 80A configured as described above, the hot gas system generated when the contact between the movable contact 30a and the fixed contact 40a is disconnected is introduced from the inlets 81b to 81d to the exhaust gas as described above. At the time of route P, the introduced hot gas system is as shown by arrow D5 in FIG. 7. The hot gas system collides with the upper surface belonging to the upper and lower direction of the route changing portion 81i and changes the direction of travel outside the depth direction. It collides with the side end portion 81e and changes the traveling direction downward and upward. As shown by arrow D6 in FIG. 7, the hot gas system that changes the traveling direction in the up and down direction collides with the upper surface of the surface that belongs to the upper and lower directions of the route changing section 81j, and changes the traveling direction inside the depth direction to converge. The system travels up and down between the opposite front ends of the two route changing sections 81j. In addition, the exhaust port 13 is exhausted from the outside of the apparatus. In this way, by providing the path changing portions 81i and 81j in the recessed portion 80e of the gate housing 80A, the exhaust path can be extended, and the amount of hot gas exhausted to the outside of the device can be further reduced by the cooling effect. In addition, the path changing portions 81i and 81j are not limited to a shape such as a rectangular parallelepiped shape, and may be formed into a protrusion shape, for example. The spirit is that the path changing sections 81i and 81j may have any shape as long as the shape allows the exhaust path of the hot gas inside the exhaust path P, and is equivalent to a path extension member in the scope of patent application.
此外，在上述各實施形態(包含變形例)中，如第4圖所示，導入口81b至81d雖係形成在比可動接點30a更靠近上下方向上方之處， 但形成位置並不限於此。此外，例如亦可將導入口81b至81d形成在可動接點30a與固定接點40a相隔最遠之狀態下之比中央之位置更靠近可動接點30a側之處。其精神在於，只要在接觸方向將導入口81b至81d形成於可動接點30a側，就可發揮相同之作用效果。 In addition, in each of the above-mentioned embodiments (including modifications), as shown in FIG. 4, although the introduction ports 81 b to 81 d are formed closer to the vertical direction than the movable contact 30 a, However, the formation position is not limited to this. In addition, for example, the introduction ports 81b to 81d may be formed closer to the movable contact 30a side than the central position in a state where the movable contact 30a and the fixed contact 40a are farthest apart. The spirit is that if the introduction ports 81b to 81d are formed on the movable contact 30a side in the contact direction, the same effect can be exhibited.
依據本發明之電磁接觸器，藉由使接點斷開時之電弧遮斷性能提升，而可減少可動接點30a及固定接點40a之損傷，且可減少使用於接點之金屬的使用量。並且，由於可抑制在接點斷開時產生之熱氣體的排氣量，因此可縮小與該電磁接觸器相鄰接之接地金屬的電弧空間，而可實現組裝有製品之機械裝置或控制盤的小型化。 According to the electromagnetic contactor of the present invention, the damage of the movable contact 30a and the fixed contact 40a can be reduced by improving the arc blocking performance when the contact is disconnected, and the amount of metal used for the contact can be reduced. . In addition, since the exhaust gas volume of the hot gas generated when the contact is opened can be suppressed, the arc space of the grounded metal adjacent to the electromagnetic contactor can be reduced, and a mechanical device or a control panel in which the product is assembled can be realized Miniaturization.
Claims (10)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/011795 WO2019180931A1 (en) | 2018-03-23 | 2018-03-23 | Electromagnetic contactor |
| ??PCT/JP2018/011795 | 2018-03-23 | ||
| WOPCT/JP2018/011795 | 2018-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201941238A true TW201941238A (en) | 2019-10-16 |
| TWI691993B TWI691993B (en) | 2020-04-21 |
Family
ID=65037000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW108104625A TWI691993B (en) | 2018-03-23 | 2019-02-12 | Electromagnetic contactor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6455652B1 (en) |
| KR (1) | KR102194812B1 (en) |
| CN (1) | CN111868869B (en) |
| TW (1) | TWI691993B (en) |
| WO (1) | WO2019180931A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649153A (en) * | 2020-12-21 | 2022-06-21 | 天津首瑞智能电气有限公司 | Switch |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61193312A (en) * | 1985-02-20 | 1986-08-27 | 三菱電機株式会社 | Switch |
| JPH0290422A (en) | 1988-09-26 | 1990-03-29 | Mitsubishi Electric Corp | Circuit breaker |
| JPH0290424A (en) * | 1988-09-26 | 1990-03-29 | Mitsubishi Electric Corp | Circuit breaker |
| JP2898491B2 (en) * | 1992-11-24 | 1999-06-02 | 三菱電機株式会社 | Switch |
| CN104810222B (en) * | 2015-05-06 | 2017-01-04 | 北京人民电器厂有限公司 | The arc-chutes of a kind of fast arc extinction and apply the miniaturization chopper of these arc-chutes |
| JP2017103005A (en) * | 2015-11-30 | 2017-06-08 | 富士電機株式会社 | Circuit breaker |
| CN105609387B (en) * | 2016-03-09 | 2018-07-27 | 苏州未来电器股份有限公司 | A kind of miniature circuit breaker and its arc-control device |
| CN210607025U (en) * | 2019-06-17 | 2020-05-22 | 浙江正泰电器股份有限公司 | Arc extinguishing chamber |
| CN111180230A (en) * | 2020-01-15 | 2020-05-19 | 上海电器科学研究所（集团）有限公司 | Arc extinguishing system of direct current contactor |
-
2018
- 2018-03-23 CN CN201880005454.4A patent/CN111868869B/en active Active
- 2018-03-23 JP JP2018554793A patent/JP6455652B1/en active Active
- 2018-03-23 WO PCT/JP2018/011795 patent/WO2019180931A1/en active Application Filing
- 2018-03-23 KR KR1020197017958A patent/KR102194812B1/en active IP Right Grant
-
2019
- 2019-02-12 TW TW108104625A patent/TWI691993B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111868869B (en) | 2021-09-10 |
| KR20200032027A (en) | 2020-03-25 |
| WO2019180931A1 (en) | 2019-09-26 |
| JP6455652B1 (en) | 2019-01-23 |
| TWI691993B (en) | 2020-04-21 |
| CN111868869A (en) | 2020-10-30 |
| JPWO2019180931A1 (en) | 2020-04-30 |
| KR102194812B1 (en) | 2020-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100944173B1 (en) | Circuit breaker | |
| CN109904045B (en) | Contact arc extinguishing system of circuit breaker | |
| CA2870117C (en) | Electric current switching apparatus | |
| CN105122409A (en) | Electric switch housing | |
| KR101800312B1 (en) | Arrangement for an electrical switch element and switch element | |
| US20230128751A1 (en) | Air circuit breaker | |
| CA2870122C (en) | Electric current switching apparatus | |
| JP4309066B2 (en) | Low-voltage circuit breaker gas damper | |
| TWI691993B (en) | Electromagnetic contactor | |
| RU2702341C1 (en) | Automatic circuit breaker and pumping device for it | |
| CN103366989A (en) | Arc extinguishing device and installation switch device equipped with same | |
| ES2300964T3 (en) | ELECTRIC CUTTING DEVICE WITH ARC EXTINGUISHING CAMERA WITH DEIONIZATION FINS. | |
| JP7432760B2 (en) | Arc extinguishing section and air circuit breaker including it | |
| CN103871794A (en) | Switch | |
| KR20220147380A (en) | Arc extinguish part and air circuit breaker include the same | |
| JP2809652B2 (en) | Circuit breaker | |
| CN104517789A (en) | Circuit breaker | |
| EP2278599A2 (en) | Electrical switching apparatus and arc chute assembly therefor | |
| US20230115892A1 (en) | Air circuit breaker | |
| JPWO2019150613A1 (en) | Circuit breaker and circuit breaking method | |
| JP2008226632A (en) | Circuit breaker | |
| JP6713309B2 (en) | Circuit breaker | |
| US20230110171A1 (en) | Arc extinguishing unit and air circuit breaker comprising same | |
| KR102303549B1 (en) | Insulation component and magnetic contactor include the same | |
| KR102303548B1 (en) | Cover frame and magnetic contactor include the same |