阅读说明：本技术 一种左轮式具有自动修复功能的熔断器 (Left-wheel fuse with automatic repair function ) 是由 吴风桂 于 2021-09-06 设计创作，主要内容包括：本发明公开了一种左轮式具有自动修复功能的熔断器,属于熔断器领域,一种左轮式具有自动修复功能的熔断器,本方案中,在弹性卷轴的作用下,始终会有一个热熔丝与两个接线端上的球形槽匹配接触,实现电性连接,由于预制槽的开凿,使得热熔丝在预制槽处的电阻瞬间提高,在电流通过时,会产生更多的热量,当电路电流升高后,极易在预制槽处熔断,此时在弹性卷轴的作用下,熔断的热熔丝主体会快速脱离接线端和球形槽的锁定,并将下一个热熔丝主体移动至接线端和球形槽上重新完成连接,可以实现在熔断器熔断后,熔断器不易直接失效,而是通过左轮转动装置将新的熔丝替换至工作位,无需手动操作,增加熔断器使用的安全性。(The invention discloses a left-wheel fuse with automatic repair function, belonging to the fuse field, wherein under the action of an elastic reel, a thermal fuse is always in matching contact with spherical grooves on two terminals to realize electrical connection, because of the cutting of the preformed groove, the resistance of the thermal fuse at the preformed groove is instantly improved, when current passes through, more heat is generated, after the current of a circuit is increased, the fuse is easily fused at the preformed groove, at the moment, under the action of the elastic reel, a fused thermal fuse main body can be quickly separated from the locking of the terminals and the spherical grooves, and the next thermal fuse main body is moved to the terminals and the spherical grooves to be reconnected, so that the fuse is not easy to directly lose efficacy after the fuse is fused, but a new fuse wire is replaced to a working position through a left-wheel rotating device, manual operation is not needed, and the use safety of the fuse is improved.)

1. The utility model provides a left-hand wheel formula has automatic repair function's fuse, includes body (1), vice sealed lid (2) and the sealed lid of main (3) that match each other, fixed connection is respectively at the both ends opening part of body (1) to vice sealed lid (2) and the sealed lid of main (3), its characterized in that: the sealing device is characterized in that the auxiliary sealing cover (2) and the main sealing cover (3) are fixedly connected with wiring ends (4), one ends of the wiring ends (4) close to the tube body (1) respectively penetrate through the auxiliary sealing cover (2) and the main sealing cover (3) and extend into the tube body (1), a spherical groove (5) is formed in one end of the wiring ends (4) located in the tube body (1), a left wheel device (6) is connected between the auxiliary sealing cover (2) and the main sealing cover (3), the left wheel device (6) comprises a central shaft (601), one end of the central shaft (601) is fixedly connected with the auxiliary sealing cover (2), the other end of the central shaft (601) is in contact with the auxiliary sealing cover (2), the central shaft (601) is rotatably connected with a pair of elastic scroll shafts (602), a plurality of limiting sleeves (603) are arranged on the outer sides of the two elastic scroll shafts (602), and connecting columns (604) are fixedly connected between the limiting sleeves (603) and the elastic scroll shafts (602), the outside of center pin (601) is equipped with a plurality of hot melt (7), and is a plurality of hot melt (7) all include hot melt main part (701), and is a plurality of the both ends of hot melt main part (701) are inserted respectively and are established in stop collar (603), the both ends fixedly connected with of hot melt main part (701) and spherical groove (5) assorted ball head (702), it has prefabricated groove (704) to open on hot melt main part (701), the degree of depth of prefabricated groove (704) is less than the third of hot melt main part (701).

2. A left-wheel fuse with automatic repair function according to claim 1, wherein: the tube body (1) is made of high-transparency acrylic glass.

3. A left-wheel fuse with automatic repair function according to claim 1, wherein: the diameters of the thermal fuses (7) are different, and the diameters of the thermal fuses (7) are gradually reduced according to the sequence of moving the thermal fuses (7) to the terminals (4).

4. A left-wheel fuse with automatic repair function according to claim 1, wherein: the thermal fuse body (701) is fixedly connected with a pair of limiting wing edges (703), and the two limiting wing edges (703) are located on the inner sides of the two limiting sleeves (603).

5. The left-wheel fuse with the automatic repair function according to claim 4, wherein: an extension spring is fixedly connected between the two limiting wing edges (703).

6. A left-wheel fuse with automatic repair function according to claim 1, wherein: the outer side of the thermal fuse main body (701) is coated with an insulating coating layer having high thermal conductivity.

7. A left-wheel fuse with automatic repair function according to claim 1, wherein: cut arc wall (9) on main sealed lid (3), arc wall (9) run through main sealed lid (3) and communicate body (1) and external, spliced pole (604) fixedly connected with handle (8) that left wheel device (6) are close to main sealed lid (3) one end, handle (8) include connecting rod (801), the one end that spliced pole (604) were kept away from in connecting rod (801) runs through arc wall (9) and extends to the outside of body (1), the one end fixedly connected with protruding portion (802) of spliced pole (604) are kept away from in connecting rod (801).

8. A left-wheel fuse with automatic repair function according to claim 7, wherein: the opening of the arc-shaped groove (9) far away from one end of the tube body (1) is fixedly connected with a sealing cluster (10) matched with the arc-shaped groove.

9. A left-wheel fuse with automatic repair function according to claim 8, wherein: the sealing cluster (10) comprises a plurality of elastic fibers (1001), the elastic fibers (1001) are in a three-dimensional spiral shape, and adjacent elastic fibers (1001) are wound together.

10. A left-wheel fuse with automatic repair function according to claim 9, wherein: the elastic fibers (1001) are made of high-thermal-conductivity rubber.

Technical Field

The invention relates to the field of fuses, in particular to a left-wheel fuse with an automatic repair function.

Background

The fuse is an electric appliance which fuses a melt by heat generated by itself to open a circuit when a current exceeds a predetermined value. The fuse melts the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so as to cut off the circuit; a current protector is made by applying the principle. The fuse is widely applied to high and low voltage distribution systems, control systems and electric equipment, and is one of the most commonly applied protection devices as a short circuit and overcurrent protector.

The fuse is composed of an insulating base (or a supporting part), a contact, a fuse body and the like, the fuse body is a main working part of the fuse, the fuse body is equivalent to a section of special lead wire connected in series in a circuit, when the circuit is short-circuited or overloaded, the current is overlarge, and the fuse body is melted due to overheating, so that the circuit is cut off. The melt is often made into a filament, a grid or a sheet. The melt material has the characteristics of low relative melting point, stable characteristics and easy fusing. Generally, metals such as lead-tin alloy, silver-plated copper sheet, zinc, silver and the like are adopted. The fuse body is generally arranged in a fuse shell in order to safely and effectively extinguish the electric arc, measures are taken to quickly extinguish the electric arc

The existing fuse is mostly disposable, the fuse is very easy to fail once triggered, people with certain electrician experience need to replace the existing fuse, the overall safety of a circuit can be guaranteed only by the fuse matched with models, the operation difficulty is high, and the influence on normal electricity utilization of users is easily caused.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a left-wheel fuse with an automatic repair function, which can realize that the fuse is not easy to directly lose efficacy after the fuse is fused, and a new fuse wire is replaced to a working position through a left-wheel rotating device without manual operation, thereby reducing the operation difficulty and increasing the safety of the fuse in use.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A left-wheel fuse with an automatic repair function comprises a pipe body, an auxiliary sealing cover and a main sealing cover which are matched with each other, wherein the auxiliary sealing cover and the main sealing cover are respectively and fixedly connected to openings at two ends of the pipe body, wiring ends are respectively and fixedly connected to the auxiliary sealing cover and the main sealing cover, one ends of the two wiring ends, which are close to the pipe body, respectively penetrate through the auxiliary sealing cover and the main sealing cover and extend into the pipe body, a spherical groove is formed in one end, which is located in the pipe body, of each wiring end, a left-wheel device is connected between the auxiliary sealing cover and the main sealing cover and comprises a central shaft, one end of the central shaft is fixedly connected with the auxiliary sealing cover, the other end of the central shaft is contacted with the auxiliary sealing cover, a pair of elastic reels are rotatably connected to the central shaft, a plurality of limiting sleeves are arranged on the outer sides of the two elastic reels, connecting columns are respectively and fixedly connected between the plurality of limiting sleeves and the elastic reels, and a plurality of hot melt wires are arranged on the outer sides of the central shaft, a plurality of hot fuses all include the hot fuse main part, the both ends of a plurality of hot fuse main parts are inserted respectively and are established in the stop collar, the both ends fixedly connected with and the spherical groove assorted spherical head of hot fuse main part, it has the prefabricated groove to cut in the hot fuse main part, the degree of depth of prefabricated groove is less than the third of hot fuse main part, can realize after the fuse melts, the difficult direct inefficacy of fuse, but replace new fuse to the work position through left-hand wheel rotating device, need not manual operation, reduce the operation degree of difficulty, the security that increases the fuse and use.

Further, the body chooses the acrylic glass of high transparency for use to make, and the user can directly observe inside concrete operating condition through the body.

Furthermore, the diameters of the thermal fuses are different, the diameters of the thermal fuses are gradually reduced according to the sequence that the thermal fuses are moved to the wiring ends, the resistance of the thermal fuses is increased, the current received by the thermal fuses is reduced, the current borne by the fuse in the using process is gradually reduced, the sensitivity of the thermal fuses is increased along with the fusing of the thermal fuses, and the possibility that a circuit where a follow-up fuse is located is short-circuited or even ignited is reduced.

Furthermore, a pair of limiting wing edges are fixedly connected to the thermal fuse main body and are located on the inner sides of the two limiting sleeves, so that the thermal fuse can be effectively prevented from sliding and is not easy to slide down from the left wheel device.

Furthermore, an extension spring is fixedly connected between the two limiting wing edges, when the prefabricated groove is softened due to overheating, the extension spring can integrally compress the thermal fuse main body, the connection between the thermal fuse main body and the wiring terminal is timely released, and the circuit is disconnected to form protection.

Furthermore, the outer side of the thermal fuse main body is coated with the high-heat-conduction insulating coating, so that electric sparks are not easy to generate between the thermal fuse main body and the extension spring due to contact, and the safety of the fuse is improved.

Further, it has the arc wall to open the chisel on the main sealed lid, the arc wall runs through main sealed lid and communicates body and external, the spliced pole fixedly connected with handle that the left wheel device is close to main sealed lid one end, the handle includes the connecting rod, the one end that the spliced pole was kept away from to the connecting rod runs through the arc wall and extends to the outside of body, the one end fixedly connected with protruding portion of spliced pole is kept away from to the connecting rod, when the elasticity spool became invalid, the user can realize the switching of hot melt silk through the manual rotation left wheel device.

Further, the opening part fixedly connected with that body one end was kept away from to the arc wall seals the cluster with self assorted, increases the sealed effect of arc wall on the one hand for in external debris were difficult for getting into the body, protect structures such as wiring end, left-hand wheel device and hot melt silk in the tube body, on the other hand, sealed cluster can increase the frictional force between connecting rod and the arc wall, makes the handle easily fixed after rotating, and is difficult for skidding, is difficult for causing wiring end and hot melt silk disconnection.

Furthermore, the sealing cluster comprises a plurality of elastic fibers which are in a three-dimensional spiral shape, and the adjacent elastic fibers are wound together to increase the sealing effect of the elastic fibers.

Furthermore, the elastic fiber is made of high-heat-conductivity rubber, so that heat generated by the work of the thermal fuse can be timely discharged, and the fatigue loss generated by the work of the thermal fuse is reduced.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

in the scheme, under the action of the elastic reel, one thermal fuse is always in matching contact with the spherical grooves on the two wiring terminals to realize electrical connection, the resistance of the thermal fuse at the prefabricated groove is instantly improved due to the cutting of the prefabricated groove, more heat can be generated when current passes through the thermal fuse, when the current of a circuit where the fuse is located rises, the thermal fuse main body is very easy to fuse at the prefabricated groove, at the moment, under the action of the elastic reel, the fused thermal fuse main body can be quickly separated from the locking of the wiring terminals and the spherical grooves, and the next thermal fuse main body is moved to the wiring terminals and the spherical grooves to be connected again, the process of replacing the thermal fuse is completely controlled by the elastic reel, manual operation of workers is not needed, the fuse is not easy to directly lose efficacy after the fuse is fused, but a new fuse is replaced to a working position through the left wheel rotating device, manual operation is not needed, operation difficulty is reduced, and safety of fuse usage is improved.

The handle has been set up on the spliced pole in addition, after the elasticity spool became invalid, can change the hot melt fuse through manual, increases the reliability of this scheme fuse.

Drawings

FIG. 1 is an exploded view of the principal structure of the fuse of the present invention;

FIG. 2 is a schematic structural diagram of a fuse of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a top cross-sectional view of a fuse of the present invention;

FIG. 5 is a schematic view of the structure at B in FIG. 4;

FIG. 6 is a side cross-sectional view of a fuse of the present invention;

FIG. 7 is a schematic view of the structure at C in FIG. 6;

FIG. 8 is a schematic view of the construction of the thermal fuse of the present invention;

FIG. 9 is a schematic structural view of the left wheel assembly of the present invention;

FIG. 10 is a schematic view of the structure of the elastic fiber of the present invention.

The reference numbers in the figures illustrate:

the sealing device comprises a pipe body 1, a secondary sealing cover 2, a primary sealing cover 3, a terminal 4, a spherical groove 5, a left wheel device 6, a central shaft 601, an elastic reel 602, a limiting sleeve 603, a connecting column 604, a thermal fuse 7, a thermal fuse main body 701, a spherical head 702, a limiting wing edge 703, a prefabricated groove 704, a handle 8, a connecting rod 801, an extension 802, an arc groove 9, a sealing cluster 10 and elastic fibers 1001.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate medium, and can be communication inside the model adapting element. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2 and 4-9, a left-wheel fuse with an automatic repair function includes a pipe body 1, a secondary sealing cover 2 and a primary sealing cover 3, which are matched with each other, the secondary sealing cover 2 and the primary sealing cover 3 are respectively and fixedly connected to openings at two ends of the pipe body 1, terminals 4 are respectively and fixedly connected to the secondary sealing cover 2 and the primary sealing cover 3, one ends of the two terminals 4, which are close to the pipe body 1, respectively penetrate the secondary sealing cover 2 and the primary sealing cover 3 and extend into the pipe body 1, a spherical groove 5 is chiseled at one end of the terminal 4, which is located in the pipe body 1, a left wheel device 6 is connected between the secondary sealing cover 2 and the primary sealing cover 3, the left wheel device 6 includes a central shaft 601, one end of the central shaft 601 is fixedly connected to the secondary sealing cover 2, the other end of the central shaft 601 is in contact with the secondary sealing cover 2, a pair of elastic reels 602 is rotatably connected to the central shaft 601, in fig. 2, the elastic winding shaft 602 always has a clockwise rotation trend, the outer sides of the two elastic winding shafts 602 are provided with a plurality of position limiting sleeves 603, connecting columns 604 are fixedly connected between the position limiting sleeves 603 and the elastic winding shaft 602, the outer side of the central shaft 601 is provided with a plurality of thermal fuses 7, the thermal fuses 7 respectively comprise thermal fuse main bodies 701, the two ends of the thermal fuse main bodies 701 are respectively inserted into the position limiting sleeves 603, the two ends of the thermal fuse main bodies 701 are fixedly connected with spherical heads 702 matched with the spherical grooves 5, pre-grooves 704 are drilled on the thermal fuse main bodies 701, and the depth of the pre-grooves 704 is less than one third of that of the thermal fuse main bodies 701.

In the scheme, under the action of the elastic reel 602, one thermal fuse 7 is always in matching contact with the spherical grooves 5 on the two terminals 4, so that the electrical connection is realized, due to the cutting of the preformed groove 704, the resistance of the thermal fuse 7 at the preformed groove 704 is instantly improved, when current passes through, more heat can be generated, after the current of a circuit where the fuse is located rises, the thermal fuse main body 701 is extremely easy to fuse at the preformed groove 704, at the moment, under the action of the elastic reel 602, the fused thermal fuse main body 701 can be quickly separated from the locking of the terminals 4 and the spherical grooves 5, and the next thermal fuse main body 701 is moved to the terminals 4 and the spherical grooves 5 to be connected again, the process that the thermal fuse 7 is more slippery is completely performed under the control of the elastic reel 602, and manual operation of workers is not needed.

It is worth noting that in the scheme, the rotation speed of the elastic scroll 602 is controlled by the elastic scroll 602, and the elastic scroll 602 exceeding 1r/min is selected, so that the fusing of the thermal fuse 7 in the working state has an effect, and a user is reminded to detect the use condition of the electric appliance in time.

Can realize after the fuse fuses, the difficult direct inefficacy of fuse, but replace new fuse to the work position through left-hand wheel rotating device, need not manual operation, reduce the operation degree of difficulty, increase the security that the fuse used.

The tube body 1 is made of high-transparency acrylic glass, and a user can directly observe the specific working state inside the tube body 1.

The diameters of the thermal fuses 7 are different, the diameters of the thermal fuses 7 are gradually reduced according to the sequence that the thermal fuses 7 move to the terminals 4, the resistance of the thermal fuses 7 is increased, the current which can be received by the thermal fuses 7 is reduced, the current which can be borne by the fuses in the use process is gradually reduced, the sensitivity of the thermal fuses 7 is increased along with the fusing of the thermal fuses 7, the possibility that a circuit where a subsequent fuse is located is short-circuited or even ignited is reduced, a pair of limiting wing edges 703 is fixedly connected to the thermal fuse main body 701, the two limiting wing edges 703 are both located on the inner sides of the two limiting sleeves 603, the thermal fuses 7 can be effectively prevented from sliding and are not easy to slide down from the left wheel device 6, a tension spring is fixedly connected between the two limiting wing edges 703, when the prefabricated grooves 704 are softened due to overheating, the tension spring can integrally compress the thermal fuse main body 701 and timely release the connection with the terminals 4, the circuit is disconnected to form protection, and the outer side of the thermal fuse main body 701 is coated with a high-thermal-conductivity insulating coating, so that electric sparks are not easy to generate between the thermal fuse main body 701 and the extension spring due to contact, and the safety of the fuse is improved.

Referring to fig. 3, 5 and 10, an arc-shaped groove 9 is cut on the main sealing cover 3, the arc-shaped groove 9 penetrates through the main sealing cover 3 and communicates the tube body 1 with the outside, a handle 8 is fixedly connected to a connecting column 604 of the left wheel device 6 near one end of the main sealing cover 3, the handle 8 comprises a connecting rod 801, one end of the connecting rod 801 far from the connecting column 604 penetrates through the arc-shaped groove 9 and extends to the outside of the tube body 1, a protrusion 802 is fixedly connected to one end of the connecting rod 801 far from the connecting column 604, when the elastic reel 602 fails, a user can realize switching of the thermal fuse 7 by manually rotating the left wheel device 6, a sealing cluster 10 matched with the opening at one end of the arc-shaped groove 9 far from the tube body 1 is fixedly connected to the opening, on one hand, the sealing effect of the arc-shaped groove 9 is increased, so that external sundries are not easy to enter the tube body 1, and the structures such as the terminal 4, the left wheel device 6 and the thermal fuse 7 in the tube body 1 are protected, on the other hand, sealed 10 cluster can increase the frictional force between connecting rod 801 and the arc wall 9, make handle 8 easily fixed after rotating, be difficult for skidding, be difficult for causing wiring end 4 and the disconnection of hot melt silk 7, sealed cluster 10 includes a plurality of elastic fiber 1001, a plurality of elastic fiber 1001 all are three-dimensional heliciform, the winding is in the same place between the adjacent elastic fiber 1001, increase elastic fiber 1001's sealed effect, elastic fiber 1001 chooses for use high heat conduction rubber to make, the heat that 7 work of hot melt silk that can in time discharge produced, reduce the fatigue loss that 7 work of hot melt silk produced.

In the scheme, under the action of the elastic reel 602, one thermal fuse 7 is always in matching contact with the spherical grooves 5 on the two terminals 4 to realize electrical connection, because the pre-groove 704 is cut, the resistance of the thermal fuse 7 at the pre-groove 704 is instantly improved, when current passes through the thermal fuse, more heat is generated, when the current of a circuit where the thermal fuse is located rises, the thermal fuse main body 701 is very easy to fuse at the pre-groove 704, at the moment, under the action of the elastic reel 602, the fused thermal fuse main body 701 can be quickly separated from the locking of the terminals 4 and the spherical grooves 5, and the next thermal fuse main body 701 is moved to the terminals 4 and the spherical grooves 5 to be connected again, the process that the thermal fuse 7 is more slippery is completely controlled by the elastic reel 602, manual operation of workers is not needed, the fuse is not easy to directly lose efficacy after the fuse is fused, but replace new fuse to the work position through left-hand wheel rotating device, need not manual operation, reduce the operation degree of difficulty, increase the security that the fuse used.

In addition, a handle 8 is erected on the connecting column 604, and after the elastic winding shaft 602 fails, the thermal fuse 7 can be replaced manually, so that the reliability of the fuse in the scheme is improved.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.