CN217444275U - Isolating switch and contact finger thereof - Google Patents
Isolating switch and contact finger thereof Download PDFInfo
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- CN217444275U CN217444275U CN202122697766.8U CN202122697766U CN217444275U CN 217444275 U CN217444275 U CN 217444275U CN 202122697766 U CN202122697766 U CN 202122697766U CN 217444275 U CN217444275 U CN 217444275U
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Abstract
The utility model belongs to the technical field of the electric switch, especially, relate to arc extinguishing or arc prevention device between current-carrying parts, concretely relates to isolator and touch and indicate, isolator's touch indicates including the mainboard body, the wherein one end of mainboard body is equipped with the guide section, when touching to indicate that the interval is installed at isolator's conductive arm tip in pairs, two guide sections enclose into the flaring structure, so that guide isolator's contact with touch and indicate to close a floodgate and separating brake, the mainboard body is heart-shaped or gradually open the line at the contour line that is close to the medial surface of the position of guide section, divide, when closing a floodgate, the mainboard body contacts with the contact of adaptation through its medial surface profile line of its heart-shaped or gradually open the line medial surface profile line position each other, and take place relative slip. Compared with the sliding friction between the contact and the contact finger in the prior isolating switch, the isolating switch has smaller friction, and the service life of the contact finger is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the electric switch, especially, relate to arc extinguishing or arc prevention device between current-carrying parts, concretely relates to isolator and touch and indicate thereof.
Background
The open-type isolating switch is used as a traditional high-voltage switch product and plays a vital role in a power system for a long time; in recent years, quality problems such as heating of a contact, serious abrasion of contact fingers of the contact and the like frequently occur in operation equipment, and serious influence is brought to safe and reliable operation of a power grid. Therefore, the quality of the isolating switch product is improved, the operation reliability of the isolating switch product is improved, and the isolating switch is a current urgent matter for improving the reliability of a power grid system and ensuring the safe and stable operation of a power system.
For example, in the prior art, patent document No. CN105590769B discloses a disconnecting switch, which includes a left conductive arm and a right conductive arm, a contact finger is disposed at an end of the left conductive arm close to the right conductive arm, a contact is disposed at an end of the right conductive arm close to the left conductive arm, when the two conductive arms swing in opposite directions to approach each other, the contact gradually slides into the contact finger to close the disconnecting switch, and when the two conductive arms swing in opposite directions to keep away from each other, the contact gradually slides out of the contact finger to open the disconnecting switch. In the process of opening and closing the isolating switch, the contact is forced to slide into and out of the contact finger in a friction manner, and the friction and the abrasion between the contact and the contact finger are serious, so that the service life of the contact finger is shortened.
Therefore, a new type of isolating switch is needed to be designed to reduce the friction between the contact fingers and the contact.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an isolator's touching indicates to when isolator combined floodgate and separating brake among the solution prior art, touch the technical problem that wearing and tearing are serious, the life-span shortens between indicating and the contact. The utility model also provides an isolator to when isolator combined floodgate and separating brake among the solution prior art, touch the technical problem that wearing and tearing are serious, the life-span shortens between finger and the contact.
In order to achieve the above object, the utility model provides a technical scheme that isolator's touch indicates is: the utility model provides an isolator's contact finger, including the mainboard body, wherein one end of mainboard body is equipped with the guide section, when touching the electrically conductive arm tip that indicates to install at isolator's interval in pairs, two guide sections enclose into flaring structure, so that guide isolator's contact and touch the finger and close a floodgate and break off the floodgate, the mainboard body is heart-shaped or involute for the profile line of the medial surface near the position of guide section, when separating, closing a floodgate, the mainboard body contacts with the contact of adaptation each other through its medial surface profile line of its heart-shaped threadiness or the medial surface profile line position of involute, and take place relative slip.
The beneficial effects are that: the utility model provides a contact finger of an isolating switch, the end part of a main board body is provided with a guide section, which is convenient for guiding the switching-on and switching-off of a contact of the isolating switch, avoiding the jamming between the contact and the contact finger, and setting the contour line of the inner side surface of the main board body close to the guide section as a heart-shaped line, because the heart-shaped line is a track formed by rolling a point on a circle around a circumference tangent to the heart-shaped line and having the same radius; the involute is a track formed by a certain point on a straight line in the process of rolling along a fixed circle. The degree of agreeing with of these two kinds of orbit and isolator's contact and the orbit of the relative motion between the contact finger is higher, when opening and shutting, is equivalent to the contact and rolls along the medial surface of contact finger, compares in the sliding friction between original isolator contact and the contact finger, and the friction is less, has improved the life who touches the finger.
As a further improvement, the contour line of the inner side surface of the main plate body at the position close to the guide section is a heart-shaped line, one end of the heart-shaped line of the inner side surface contour line is connected with the guide section, and the other end of the heart-shaped line of the inner side surface contour line extends back to the guide section.
The beneficial effects are that: one end of the heart-shaped linear inner side surface contour line is connected with the guide section, so that the heart-shaped linear inner side surface contour line is prevented from being disconnected with the guide section, and the contact head rolls relative to the inner side surface of the contact finger when entering the interval between the two contact fingers and being contacted with the contact finger.
In a further improvement, the contour line of the inner side surface of the cardioid shape of the main plate body is a partial line segment of the shoulder position on the side of the symmetric center line of the cardioid shape.
The beneficial effects are that: the fitness of the heart-shaped line and the track of the relative motion between the contact and the contact finger of the isolating switch is highest, and the effect of reducing friction is best.
As a further improvement, a groove is formed in the inner side face of the main plate body, the shape of the groove is matched with the shape of the profile of the side face, used for being in contact with the contact finger, of the contact, and the middle position of the bottom of the groove is opposite to the highest point of the shoulder of the heart-shaped line.
The beneficial effects are that: the shape of the groove is matched with the shape of the side profile of the contact for contacting with the contact finger, so that the contact area between the contact and the contact finger is increased, and the through-current capacity of the isolating switch is improved; the middle position of the groove bottom corresponds to the highest point of the shoulder of the heart-shaped line, so that the contact can directly slide into the groove along the heart-shaped linear inner side contour line of the main board body during closing, and directly slide out of the groove along the heart-shaped linear inner side contour line of the main board body during opening, and friction between the contact and the contact finger during opening and closing is reduced.
As a further improvement, the inner side surface of the main plate body is provided with a groove, and the groove is positioned on the side of the heart-shaped linear inner side surface contour line of the main plate body, which is back to the end part of the guide section.
The beneficial effects are that: the groove is positioned at the side of the end part of the heart-shaped line back to the guide section, and is convenient to manufacture.
As a further improvement, the guide section is of an arc structure which is smoothly connected with the contour line of the inner side surface of the heart-shaped line.
The beneficial effects are that: the guide section of the arc-shaped structure enables the contact fingers to be uniform integrally, the generation of tips is reduced, and the electric field is uniform.
The utility model provides a isolator's technical scheme is: an isolating switch comprises a bracket, wherein an operating mechanism and insulators arranged in pairs are arranged on the bracket, one of the insulators arranged in pairs is horizontally provided with a contact finger side conductive pipe assembly, the other insulator is horizontally provided with a contact side conductive pipe assembly, the operating mechanism is in transmission connection with the contact finger side conductive pipe assembly and the contact side conductive pipe assembly so that the contact finger side conductive pipe assembly and the contact side conductive pipe assembly respectively rotate around the corresponding insulators to realize the opening and closing of the isolating switch, a contact is arranged at the end part of the contact finger side conductive pipe assembly, two contact fingers arranged in pairs are arranged at the end part of the contact finger side conductive pipe assembly, a space for the contact to enter during the closing is formed between the two contact fingers, at least one of the two contact fingers at the front side of the rotation direction of the contact during the closing comprises a main plate body, and one end of the main plate body is provided with a guide section, when the contact fingers are installed at the end parts of the conductive arms of the isolating switch at intervals in pairs, the two guide sections are enclosed into a flaring structure so as to guide the contact and the contact fingers to switch on and switch off, the inner side surface contour line of the main plate body at the position close to the guide sections is a heart-shaped line or an involute, and when the main plate body is switched on and switched off, the main plate body is mutually contacted with the matched contact through the inner side surface contour line of the heart-shaped line or the involute inner side surface contour line and slides relatively.
The beneficial effects are that: the utility model provides an isolator, through the operating device drive contact finger side electric conduction pipe subassembly and contact side electric conduction pipe subassembly installed on the support respectively dorsad respectively corresponding insulator relative rotation, realize isolator's divide-shut brake, and set up the guide section at the tip of the mainboard body that touches the finger, guide isolator's the combined floodgate and the separating brake of contact, avoid contact and touch to hinder between the finger, set up the outline line that the mainboard body is close to the medial surface of guide section as the heart line, because the heart line is by the orbit that a point on the circle rolled the orbit that forms round the circumference tangent and the same radius rather than; the involute is a track formed by a certain point on a straight line in the process of rolling along a fixed circle. The degree of agreeing with of these two kinds of orbit and isolator's contact and the orbit of the relative motion between the contact finger is higher, when opening and shutting, is equivalent to the contact and rolls along the medial surface of contact finger, compares in the sliding friction between original isolator contact and the contact finger, and the friction is less, has improved the life who touches the finger.
As a further improvement, the contour line of the inner side surface of the main plate body at the position close to the guide section is a heart-shaped line, one end of the heart-shaped line of the inner side surface contour line is connected with the guide section, and the other end of the heart-shaped line of the inner side surface contour line extends back to the guide section.
The beneficial effects are that: one end of the heart-shaped linear inner side surface contour line is connected with the guide section, so that the heart-shaped linear inner side surface contour line is prevented from being disconnected with the guide section, and the contact head rolls relative to the inner side surface of the contact finger when entering the interval between the two contact fingers and being contacted with the contact finger.
In a further improvement, the contour line of the inner side surface of the cardioid shape of the main plate body is a partial line segment of the shoulder position on the side of the symmetric center line of the cardioid shape.
The beneficial effects are that: the fitness of the heart-shaped line and the track of the relative motion between the contact head and the contact finger of the isolating switch is highest, and the effect of reducing friction is best.
As a further improvement, a groove is formed in the inner side face of the main plate body, the shape of the groove is matched with the shape of the profile of the side face, used for being in contact with the contact finger, of the contact, and the middle position of the bottom of the groove is opposite to the highest point of the shoulder of the heart-shaped line.
The beneficial effects are that: the shape of the groove is matched with the shape of the side profile of the contact for contacting with the contact finger, so that the contact area between the contact and the contact finger is increased, and the through-current capacity of the isolating switch is improved; the middle position of the groove bottom corresponds to the highest point of the shoulder of the heart-shaped line, so that the contact can directly slide into the groove along the heart-shaped linear inner side contour line of the main board body during closing, and directly slide out of the groove along the heart-shaped linear inner side contour line of the main board body during opening, and friction between the contact and the contact finger during opening and closing is reduced.
As a further improvement, the inner side surface of the main plate body is provided with a groove, and the groove is positioned on the side of the heart-shaped linear inner side surface contour line of the main plate body, which is back to the end part of the guide section.
The beneficial effects are that: the groove is positioned at the side of the end part of the heart-shaped line back to the guide section, and is convenient to manufacture.
As a further improvement, the guide section is of an arc structure which is smoothly connected with the contour line of the inner side surface of the heart-shaped line.
The beneficial effects are that: the guide section of the arc-shaped structure enables the contact fingers to be uniform integrally, the generation of tips is reduced, and the electric field is uniform.
As a further improvement, the two fingers arranged in pairs are identical in structure.
The beneficial effects are that: the two contact fingers are consistent in structure, so that when one contact finger is seriously abraded, the other contact finger can be exchanged to be installed, the maintenance cost of the isolating switch is reduced, the two contact fingers are consistent in structure and can be uniformly processed, the two contact fingers do not need to be distinguished during installation, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an isolating switch provided by the present invention;
FIG. 2 is a schematic view of the assembly of the conductive pipe assembly and the insulator of FIG. 1;
FIG. 3 is a schematic structural view of the finger-side conductive pipe assembly of FIG. 1;
FIG. 4 is a schematic structural diagram of the finger of FIG. 3;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic diagram of the outline of the inner side surface of the cardioid shape of the finger
FIG. 7 is an enlarged view taken at A in FIG. 6;
FIG. 8 is a schematic view of the contact side conductive tube assembly of FIG. 1;
FIG. 9 is a schematic view of the contact of FIG. 8;
FIG. 10 is a top view of FIG. 9;
FIG. 11 is a diagram of the movement traces of the contact and the contact finger during switching on and switching off;
fig. 12 is a schematic diagram of the contact and the contact finger when closing is completed.
Description of reference numerals: 1. a support; 2. an operating mechanism; 3. an insulator; 31. a base; 32. a connecting rod; 4. a contact finger side conductive tube assembly; 41. a finger-side conductive arm; 42. a finger-side support base; 43. a contact finger side connection board; 44. pressing a plate; 45. a finger movement trajectory; 5. a contact side conductive pipe assembly; 51. a contact-side conductive arm; 52. a contact side support base; 53. a contact-side terminal plate; 54. a contact block; 55. the motion track of the contact; 6. a contact finger; 61. a main board body; 62. a guide section; 63. a heart-shaped linear inner side contour line; 64. a groove; 7. a contact; 8. a heart-shaped line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that such actual relationships or sequences between the entities or operations exist. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or apparatus that comprises the same elements.
In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model discloses in isolator's that provides embodiment 1:
as shown in fig. 1 and fig. 2, the disconnecting switch includes a bracket 1, an operating mechanism 2 and a plurality of insulators 3 are installed on the bracket 1, each insulator 3 is installed on the bracket 1 through a base 31, the insulators 3 are in transmission connection through a connecting rod 32, the insulators 3 are arranged in pairs, one of the insulators 3 arranged in pairs is horizontally provided with a contact finger side conductive pipe assembly 4, the other insulator is horizontally provided with a contact side conductive pipe assembly 5, the operating mechanism 2 is in transmission connection with the insulators 3 through a transmission rod, so as to drive the contact finger side conductive pipe assembly 4 and the contact side conductive pipe assembly 5 to respectively rotate oppositely to the corresponding insulator 3, so as to implement switching on and off of the disconnecting switch. The bracket 1, the operating mechanism 2 and the insulator 3 are all in the prior art, and are not described herein again.
As shown in fig. 3, the contact finger side conductive pipe assembly 4 includes a contact finger side conductive arm 41, one end of the contact finger side conductive arm 41 is provided with a contact finger side supporting seat 52, the contact finger side conductive arm 41 is mounted on the corresponding insulator 3 through the contact finger side supporting seat 42, and the contact finger side connecting plate 43 is connected to the contact finger side supporting seat 42 for connecting with the high voltage transmission line; the other end of the contact finger side conductive arm 41 is provided with two contact fingers 6 which are oppositely arranged, and the two contact fingers 6 enclose a space for the contact 7 to be inserted when the switch is switched on; and the outer side of each contact finger 6 is provided with a pressing plate 44, the pressing plate 44 comprises arc plate sections, two sides of each arc plate section are respectively connected with a flat plate section, one flat plate section is used for pressing the corresponding contact finger 6 on the conductive arm 41 at the contact finger side, the other flat plate section is arranged in an overhanging way, the corresponding contact finger 6 applies pressing force towards the other contact finger 6, the two pressing plates 44 respectively and correspondingly press the two contact fingers 6, when the switch is switched on, the two contact fingers 6 can be tightly contacted with the contact 7, and the virtual connection between the contact 7 and the contact finger 6 is avoided.
The two contact fingers 6 have the same structure, as shown in fig. 4 and 5, each contact finger 6 includes a main plate body 61, each main plate body 61 is of a flat plate structure, one end of each main plate body 61 is used for being connected with a conductive arm 41 on the side of the contact finger, the other end of each main plate body 61 is provided with a guide section 62, each guide section 62 is an arc-shaped plate, and the guide sections 62 on the two oppositely arranged contact fingers 6 form a flaring structure, so that the contact 7 can enter a space surrounded by the two contact fingers 6 from the flaring to be electrically connected with the contact fingers 6 when the switch is switched on;
as shown in fig. 6 and 7, the main plate body 61 is provided with a heart-shaped inner side surface contour line 63, and the heart-shaped inner side surface contour line 63 is a partial line segment of a shoulder position on one side of the symmetric center line of the heart-shaped line 8, and for the whole heart-shaped line 8, the selected part has the highest degree of fit with the contact motion trajectory 45 and the contact finger motion trajectory 55 of the disconnecting switch during switching on and off, so that the contact 7 rolls along the inner side surface of the contact finger 6 during switching on and off, and the friction is smaller than the sliding friction between the contact 7 and the contact finger 6 in the conventional disconnecting switch. The end of the contour line of the inner side surface close to the guide section 62 is smoothly connected with the guide section 62, so that the contact 7 rolls relative to the inner side surface of the contact finger 6 when entering the interval between the two contact fingers 6 and contacting with the contact finger 6.
A groove 64 is further formed in the inner side face of the main plate body 61, the shape of the groove 64 is matched with the position, used for being in contact with the contact finger 6, of the contact 7, the contact area between the contact 7 and the contact finger 6 is increased, and the current capacity of the isolating switch is improved; the middle position of the groove bottom of the groove 64 is over against the highest point of the shoulder part of the heart-shaped line 8, so that the contact 7 directly slides into the groove 64 along the heart-shaped linear inner side contour line 63 of the main board body 61 during closing, the contact 7 directly slides out of the groove 64 along the heart-shaped linear inner side contour line 63 of the main board body 61 during opening, and friction between the contact 7 and the contact finger 6 during opening and closing is reduced.
As shown in fig. 8, in the contact-side bushing assembly 5, a contact-side support seat 52 is provided at one end of a contact-side arm 51, the contact-side arm 51 is mounted on the corresponding insulator 3 via the contact-side support seat 52, and a contact-side terminal plate 53 is also connected to the contact-side support seat 52 for connection with the high-voltage power line; the other end of the contact side conductive arm 51 is provided with a contact block 54, and the end of the contact block 54 away from the contact side conductive arm 51 is provided with a contact 7, as shown in fig. 9 and 10, the contact 7 is integrally of a plate-shaped structure, and the side surface of the contact for contacting with the contact finger 6 is arc-shaped to be matched with the groove 64 on the contact finger 6.
As shown in fig. 11, when the disconnecting switch is closed, the operating mechanism 2 drives each insulator 3 to rotate, each rotating insulator 3 drives the corresponding conductive arm to swing, the finger-side conductive arm 41 and the contact-side conductive arm 51 on the insulators 3 arranged in pairs swing around the respective corresponding insulator 3, the contact 7 mounted at the end of the contact-side conductive arm 51 gradually rotates and approaches the contact finger 6 mounted at the end of the finger-side conductive arm 41, so that the contact 7 enters the space surrounded by the two contact fingers 6 through the flared opening surrounded by the guide sections 62 of the two contact fingers 6, and as the finger-side conductive arm 41 and the contact-side conductive arm 51 continuously swing, the contact finger 6 and the contact 7 are closed in a meshing manner, specifically, the lower side of the contact 7 gradually rolls into the groove 64 of the main plate body 61 along the heart-shaped inner side contour line 63 of the main plate body 61 of the contact finger 6, as shown in fig. 12, until the two sides of the contact 7 respectively slide into the grooves 64 of the two contact fingers 6, the closing of the isolating switch can be completed.
When the disconnecting switch is opened, the operating mechanism 2 drives each insulator 3 to rotate in the reverse direction, each rotating insulator 3 drives the corresponding conductive arm to swing, and when the finger-side conductive arm 41 and the contact-side conductive arm 51 on the insulators 3 arranged in pairs swing around the respective corresponding insulator 3, the contact 7 slides out of the groove 64 of the main plate body 61 of the contact finger 6 and gradually exits from the space surrounded by the two contact fingers 6 along the heart-shaped linear inner side surface contour line 63 of the main plate body 61, so that the opening operation can be completed.
The utility model provides an isolator, through the operating device 2 drive of installing on support 1 touch finger side electric conduction pipe assembly 4 and contact side electric conduction pipe assembly 5 respectively dorsad respectively corresponding insulator 3 relative rotation, realize isolator's divide-shut brake, and set up guide section 62 at the tip of the mainboard body 61 that touches finger 6, guide isolator's contact 7's closing and separating brake, avoid contact 7 and touch between the finger 6 block, set up the outline line that the mainboard body 61 is close to the medial surface of guide section 62 to heart-shaped line 8, because heart-shaped line 8 is by the orbit that one point on the circle rolled round the circumference tangent and the radius the same with it, it is higher with the degree of agreeing with of the orbit of relative motion between isolator's contact 7 and the touch finger 6, when dividing-shut brake, contact 7 rolls along the medial surface that touches finger 6, compare in original isolator 7 with touch the sliding friction between the finger 6, the friction is small, and the service life of the contact finger 6 is prolonged.
The utility model discloses in isolator's that provides embodiment 2:
the present embodiment is different from embodiment 1 in that: in embodiment 1, the two fingers 6 mounted on the finger-side conductive arms 41 and arranged to face each other are identical in structure, and the main plate body 61 is provided with a heart-shaped linear inner side surface contour line 63. In this embodiment, the contact device is installed in two contact fingers in which the conductive arms on the contact finger sides are arranged oppositely, a heart-shaped inner side surface contour line is arranged on the main plate body of the contact finger positioned on the front side in the closing rotation direction of the contact, the main plate body of the other contact finger is not provided with the heart-shaped inner side surface contour line, the inner side surface contour lines are entirely linear, and the contact is separated from and contacts the contact finger only in a mutual rolling manner with the contact finger provided with the heart-shaped inner side surface contour line during opening and closing.
The utility model discloses in isolator's that provides embodiment 3:
the present embodiment is different from embodiment 1 in that: in embodiment 1, the inner side surface of the main plate body 61 is provided with a groove 64, and the middle position of the groove bottom of the groove 64 corresponds to the highest point of the shoulder of the heart-shaped line 8. In this embodiment, the inner side surface of the main plate body is also provided with a groove, but the groove is specifically arranged on the side of the heart-shaped inner side surface contour line of the main plate body, which is opposite to the end part of the guide section.
The utility model discloses in isolator's that provides embodiment 4:
the present embodiment is different from embodiment 1 in that: in example 1, the guide segment 62 at the end of the main plate body 61 of the finger 6 is an arc-shaped plate smoothly contacting the inner side contour 63 of the heart-shaped wire. In this embodiment, the guiding section of the end of the main board body of the contact finger is a straight board, and an included angle exists at the joint of the guiding section and the main board body.
The utility model discloses in isolator's that provides embodiment 5:
the present embodiment is different from embodiment 1 in that: in example 1, the heart-shaped inner side contour line 63 of the main plate body 61 of the finger 6 is in contact with the guide segment 62. In this embodiment, the outline of the inner side surface of the heart-shaped line of the contact finger main plate body is arranged at intervals with the guide section.
The utility model discloses in isolator's that provides embodiment 6:
the present embodiment is different from embodiment 1 in that: in example 1, the heart-shaped linear inner side surface contour line 63 of the main plate body 61 is a partial line segment of the shoulder portion position on the side of the center line of symmetry of the heart-shaped line 8. In this embodiment, the contour line of the inner side surface of the heart-shaped line of the main board body may also be a line segment at another position of the heart-shaped line.
The utility model discloses in isolator's that provides embodiment 7:
the present embodiment is different from embodiment 1 in that: in embodiment 1, the contour line of the inner surface of the main plate body 61 at a position close to the guide piece 62 is a heart line. In the embodiment, the inner side surface contour line of the main plate body at the position close to the guide section is an involute, the involute-shaped inner side surface contour line is connected with the guide section, and the middle position of the groove bottom of the groove is just opposite to the highest point of the involute.
The utility model discloses still provide isolator's the embodiment that indicates of touching:
the structure of the contact finger of the isolating switch in this embodiment is the same as that of the isolating switch in embodiment 1 of the isolating switch, and is not described herein again.
Certainly, in other embodiments, the contact finger of the isolating switch in any embodiment of the isolating switch embodiments 2 to 7 may also be used as the contact finger of the isolating switch, and details are not described herein again.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The contact finger of the isolating switch is characterized by comprising a main plate body (61), wherein one end of the main plate body (61) is provided with guide sections (62), when the contact finger (6) is installed at the end part of a conductive arm of the isolating switch at intervals in pairs, the two guide sections (62) enclose into a flaring structure so as to guide a contact (7) of the isolating switch to be switched on and switched off with the contact finger (6), the inner side profile line of the main plate body (61) at the position close to the guide sections (62) is a heart-shaped line (8) or an involute, and when the isolating switch is switched on and switched off, the inner side profile line of the main plate body (61) at the position close to the guide sections (62) is in contact with the contact (7) matched with the contact through the heart-shaped inner side profile line (63) or the involute-shaped inner side profile line, and relative sliding occurs.
2. The contact finger of a disconnector according to claim 1, characterized in that the inner side contour of the main plate body (61) at a location close to the guide section (62) is a heart-shaped line (8), one end of the heart-shaped inner side contour (63) being connected to the guide section (62) and the other end extending away from the guide section (62).
3. The contact finger of the isolating switch according to claim 2, characterized in that the inner side contour line (63) of the cardioid shape of the main plate body (61) is a partial line segment of the shoulder position on the side of the symmetrical center line of the cardioid shape (8).
4. The contact finger of the isolating switch according to claim 3, characterized in that a groove (64) is formed in the inner side face of the main plate body (61), the shape of the groove (64) is matched with the shape of the side profile of the contact (7) for contacting with the contact finger (6), and the middle position of the groove bottom of the groove (64) is opposite to the highest point of the shoulder of the cardioid (8).
5. Contact finger of a disconnector according to claim 1, characterised in that the main plate body (61) is provided with a groove (64) on its inner side, which groove (64) is connected to a cardioid inner side contour (63).
6. Contact finger of a disconnector according to claim 1 or 2, characterized in that the guide section (62) is of an arc-like configuration smoothly adjoining the inner side contour (63) of the cardioid shape.
7. An isolating switch is characterized by comprising a support (1), wherein an operating mechanism (2) and insulators (3) which are arranged in pairs are installed on the support (1), one of the insulators (3) which are arranged in pairs is provided with a contact finger side conductive pipe assembly (4) in an upper horizontal mode, the other insulator is provided with a contact side conductive pipe assembly (5) in an upper horizontal mode, the operating mechanism (2) is in transmission connection with the contact finger side conductive pipe assembly (4) and the contact side conductive pipe assembly (5), so that the contact finger side conductive pipe assembly (4) and the contact finger side conductive pipe assembly (5) respectively rotate around the corresponding insulators (3) relatively to realize switching-on and switching-off of the isolating switch, a contact (7) is installed at the end part of the contact finger side conductive pipe assembly (5), two contact fingers (6) which are arranged in pairs are installed at the end part of the contact finger side conductive pipe assembly (4), a space for the contact fingers (7) to enter during switching-on is formed between the two contact fingers (6), at least one contact finger (6) of the two contact fingers (6) which is located at the front side of the rotation direction of the contact (7) during switching-on is the contact finger as claimed in any one of claims 1 to 6.
8. A disconnector according to claim 7, characterized in that the two fingers (6) arranged in pairs are of identical construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122697766.8U CN217444275U (en) | 2021-11-05 | 2021-11-05 | Isolating switch and contact finger thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122697766.8U CN217444275U (en) | 2021-11-05 | 2021-11-05 | Isolating switch and contact finger thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217444275U true CN217444275U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122697766.8U Active CN217444275U (en) | 2021-11-05 | 2021-11-05 | Isolating switch and contact finger thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217444275U (en) |
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- 2021-11-05 CN CN202122697766.8U patent/CN217444275U/en active Active
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