Magnetic flux release

Abstract

The utility model relates to the technical field of low-voltage electric appliances, in particular to a magnetic flux release, which comprises a pull rod piece, a locking piece and a tripping piece. Wherein an embedding groove is formed in the pull rod piece, the lock catch piece is embedded in the embedding groove, a lock catch part is arranged on the lock catch piece, and the pull rod piece can move so that the lock catch part can be switched between a lock catch position and a release position. The jump fastener is provided with a jump fastener part, and when the jump fastener is not triggered and the lock catch part is arranged at the lock catch position, the jump fastener part can lock the lock catch part. According to the magnetic flux release, the lock catch piece is embedded in the embedding groove of the pull rod piece, so that when the tripping part of the tripping piece locks and limits the locking part of the lock catch piece, the inner wall of the embedding groove can support the lock catch piece in a balanced manner, the phenomenon that the lock catch piece is broken due to overlarge local stress is avoided, and the service life of the magnetic flux release is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a magnetic flux release. Background Art

[0002] The flux release is an important component of the molded case circuit breaker product. The existing flux release includes structures such as a lock, a trip button and an iron core. The lock and the trip button can lock each other to a limit position. When the trip button is released from the locked position under the action of the iron core, the lock can be released, and the lock and the trip button are no longer locked with each other. During the use of the flux release, the lock and the trip button will switch back and forth between the locked state and the released state. The lock in the prior art generally includes a rod-shaped portion and a lock portion. The lock portion is located at one end of the rod-shaped portion. Repeated force on the lock portion will cause the connection between the lock portion and the rod-shaped portion to be at risk of breaking, resulting in a reduced life of the flux release.

[0003] Therefore, a flux release is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a magnetic flux release which can prevent the risk of breakage and prolong the service life.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A magnetic flux release is provided, comprising:

[0007] A pull rod, wherein the pull rod is provided with an inlay groove;

[0008] A locking member, the locking member is embedded in the embedding groove, the locking member is provided with a locking portion, and the pull rod member can move so that the locking portion switches between a locking position and a release position;

[0009] A jump buckle piece, wherein the jump buckle piece has a jump buckle portion, and when the jump buckle piece is not triggered and the locking portion is placed in the locking position, the jump buckle portion can lock the locking portion.

[0010] As a preferred solution of the magnetic flux release, the pull rod is made of non-metallic material, and the locking member is made of metallic material.

[0011] As a preferred solution of the magnetic flux release, it also includes a bracket and a first elastic member, the pull rod member is slidably connected to the bracket, the two ends of the first elastic member are respectively abutted against the bracket and the pull rod member, and the first elastic member has a tendency to move the pull rod member so that the locking part moves from the locking position to the release position.

[0012] As a preferred solution of the magnetic flux release, a guide groove is provided on the bracket, and a guide portion is provided on the pull rod, and the guide portion is slidably disposed in the guide groove.

[0013] As a preferred solution of the flux release, it also includes a bracket and a second elastic member, the jumper is rotatably connected to the bracket, the two ends of the second elastic member are respectively connected to the bracket and the jumper, and the second elastic member has a tendency to rotate the jumper until the jumper part is locked with the locking part.

[0014] As a preferred solution of the magnetic flux release, the second elastic member includes a torsion spring, one end of the torsion spring is connected to the tripping member, and the other end of the torsion spring is connected to the bracket.

[0015] As a preferred solution of the magnetic flux release, a rotating shaft is provided on the bracket, the jumper is rotatably arranged on the rotating shaft, and the torsion spring is sleeved on the rotating shaft and placed between the jumper and the bracket.

[0016] As a preferred solution of the magnetic flux release, it also includes an iron core, and the jumper also has a force-bearing part, and the iron core can push the force-bearing part to make the jumper part break away from the position of locking the locking part.

[0017] As a preferred solution of the flux releaser, the jumping portion includes a jumping protrusion and a jumping groove, the locking portion is located at the tripping position, the jumping protrusion can be pressed against one side of the locking portion to lock the locking portion, and the jumping groove is used to accommodate the locking portion placed in the locking position.

[0018] As a preferred solution of the magnetic flux release, the locking member is riveted or screwed to the pull rod member.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a magnetic flux releaser, which embeds a locking piece in an inlay groove of a pull rod piece. When a jumping portion of the jumping piece locks and limits the locking portion of the locking piece, the inner wall of the inlay groove evenly supports the locking piece to avoid excessive local force on the locking piece, which may cause breakage, thereby extending the service life of the magnetic flux releaser. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first perspective of the magnetic flux release provided by an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the magnetic flux release provided by the embodiment of the utility model from a second viewing angle;

[0023] Figure 3 It is a structural schematic diagram of the flux release provided by the embodiment of the utility model from a third perspective;

[0024] Figure 4 It is a schematic diagram of the structure of the pull rod and the locking member provided in the embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a jump fastener provided in an embodiment of the utility model.

[0026] In the figure:

[0027] 100, pull rod; 101, guide portion; 102, push surface; 103, receiving groove;

[0028] 200, locking member; 201, locking portion;

[0029] 300, jump buckle piece; 301, jump buckle protrusion; 302, jump buckle groove; 303, twisting hole; 304, central axis hole; 305, force-bearing part;

[0030] 400, first elastic member; 500, second elastic member; 600, iron core; 700, rotating shaft;

[0031] 800, bracket; 801, support hole; 802, guide groove. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and implementation methods. It is understood that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings, rather than all.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] like Figure 1-Figure 3 As shown, the magnetic flux release of this embodiment includes a pull rod 100, a lock member 200 and a jumper 300. Among them, the pull rod 100 is provided with an inlay groove, the lock member 200 is embedded in the inlay groove, and the lock member 200 is provided with a lock portion 201. The pull rod 100 can move so that the lock portion 201 switches between the lock position and the release position. The jumper 300 has a jumper portion, and when the jumper 300 is not triggered and the lock portion is placed in the lock position, the jumper portion can lock the lock portion 201.

[0036] By embedding the locking component 200 in the embedding groove of the pull rod component 100, when the locking portion 201 of the locking component 200 is locked and limited by the jumping portion of the jumping component 300, the inner wall of the embedding groove can provide balanced support to the locking component 200, avoiding the locking component 200 from being broken due to excessive local force, thereby extending the service life of the magnetic flux releaser.

[0037] Optionally, the locking member 200 may be connected to the pull rod member 100 by means of riveting, screwing, etc., to further ensure that the locking member 200 and the pull rod member 100 are firmly connected.

[0038] Figure 2 The ab direction is the first direction, the cd direction is the second direction, and the ef direction is the third direction. Preferably, the inlay groove is opened in depth along the first direction, the locking portion 201 protrudes from the pull rod 100 along the first direction, and the jump buckle portion includes a jump buckle protrusion 301 and a jump buckle groove 302. The jump buckle protrusion 301 can abut the locking portion 201 along the second direction to prevent the locking portion 201 from moving rightward, thereby locking the locking portion 201. The jump buckle groove 302 can accommodate the locking portion 201 placed in the locking position. In some embodiments, the bottom of the jump buckle groove 302 can also abut the locking portion 201 along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other. Figure 1 The locking member 200 and the jumping member 300 are in a released state. Figure 2The locking member 200 and the jumping member 300 are in a limited position state. In this embodiment, the locking member 200 can move along a straight line, and the jumping member 300 can rotate around the axis of its own central axis hole 304 in a plane.

[0039] In order to ensure that the locking member 200 is in an insulated state from the circuit breaker and further extend the service life of the magnetic flux release, preferably, in this embodiment, the pull rod 100 is made of non-metallic material and the locking member 200 is made of metal, thereby ensuring the structural strength and wear and impact resistance of the locking member 200. Optionally, the jumper 300 is also made of metal.

[0040] Preferably, the magnetic flux release also includes a first elastic member 400, and the first elastic member 400 is used to push the pull rod member 100 to move so that the locking portion 201 is released and released. Optionally, the first elastic member 400 is a compression spring. The magnetic flux release also includes a bracket 800, and the bracket 800 is used to support various components. The pull rod member 100 is slidably connected to the bracket 800. The spring is arranged in a receiving groove 103 formed by the bracket 800 and the pull rod member 100, one end of the spring abuts the bracket 800, and the other end abuts the pull rod member 100, so that the spring has a tendency to push the pull rod member 100 to move in the second direction, resulting in a tendency for the space of the receiving groove 103 to increase. That is, after the locking portion 201 is released, it can further disengage from the tripping portion, that is, achieve a completely released state. Figure 2 Taking the angle shown as an example, the right end face of the pull rod 100 is the push face 102. By pushing the push face 102 to move the pull rod 100 to the left, the lock part 201 can be driven to move to the left, and at the same time, the lock part 201 abuts against the jump part to move the jump part downward until the lock part 201 moves to the jump groove 302 and the jump protrusion 301 moves upward to complete the locking. In addition, the first elastic member 400 can also be a tension spring or a torsion spring.

[0041] like Figure 3 As shown, preferably, a guide groove 802 is provided on the bracket 800. Figure 4 As shown, the rod 100 is provided with a guide portion 101, which can be slidably inserted in the guide groove 802, and the guide groove 802 extends along the second direction. The above design can ensure that the rod 100 moves along the second direction relative to the bracket 800, thereby ensuring the stable movement of the lock member 200.

[0042] Preferably, the magnetic flux release also includes a second elastic member 500, and the second elastic member 500 has a tendency to drive the jumper 300 to rotate so that the jumper part locks the lock part 201 located in the lock position. Preferably, the second elastic member 500 is a torsion spring, one end of which is connected to the jumper 300, and the other end of which is connected to the bracket 800. Optionally, a torsion hole 303 is provided on the jumper 300, and one end of the torsion spring is inserted into the torsion hole 303. That is, Figure 3 As shown, one end of the torsion spring is connected to the bracket 800, and the other end can drive the jumper 300 to rotate. Figure 2 Taking the angle shown as an example, the torsion spring has a tendency to drive the jumper 300 to rotate counterclockwise along the axis of its own central axis hole 304, so that the jumper groove 302 of the jumper part contacts or abuts the lower end surface of the locking part 201, and the jumper protrusion 301 abuts the locking part 201 located in the locking position to lock the locking part 201.

[0043] Preferably, the magnetic flux release further comprises a rotating shaft 700, the jumper 300 is rotatably arranged on the rotating shaft 700, and the torsion spring is sleeved on the rotating shaft 700 and placed between the jumper 300 and the bracket 800. Optionally, a central axis hole 304 is provided on the jumper 300, and the rotating shaft 700 is arranged through the central axis hole 304. Further preferably, two central axis holes 304 are provided, and the two central axis holes 304 are respectively provided on the first rod and the second rod, and the rotating shaft 700 passes through the two central axis holes 304 in sequence to ensure that the jumper 300 rotates stably in a plane perpendicular to the first direction.

[0044] Preferably, a support hole 801 is provided on the bracket 800, and the rotating shaft 700 is passed through the support hole 801. Support holes 801 are provided on both side walls of the bracket 800 to ensure a stable connection between the rotating shaft 700 and the bracket 800. Figure 3 As shown, the torsion spring is sleeved on the rotating shaft 700 and is located in the accommodating cavity formed by the bracket 800 and the second rod.

[0045] Preferably, the magnetic flux release device further comprises an iron core 600, which can selectively push the tripping member 300 to rotate so that the tripping member releases the locking member 201. Figure 5 As shown, the jumper 300 includes a first rod and a second rod, the jumper portion is arranged on the first rod, and the second rod is provided with a force receiving portion 305, and the iron core 600 can selectively push the force receiving portion 305 to make the jumper portion break away from the position of locking the lock portion 201. Figure 2 Taking the angle shown as an example, the jumper part rotates clockwise to release the lock part 201, and the lock member 200 will move rightward under the action of the spring, so that the lock part 201 will eventually completely separate from the jumper part to achieve release.

[0046] The operating principle of the flux release is as follows:

[0047] When the current is abnormal, the coil matched with the iron core 600 generates a magnetic field, and the iron core 600 moves to push the force-bearing part 305 of the tripping fastener 300. Figure 2 Taking the angle shown as an example, the tripping part rotates clockwise, the tripping part of the tripping part 300 leaves the position of the locking lock part 201, the pull rod 100 moves to the right under the action of the spring, and the lock part 200 moves to the right along with the pull rod 100, and the tripping part and the lock part 201 are completely separated, that is, a completely tripped state is achieved. The right end face of the pull rod 100 is the push surface 102, and the push surface 102 of the pull rod 100 triggers the tripping mechanism to open the circuit breaker, that is, to achieve tripping. After the tripping, the circuit is disconnected, the coil does not pass current, the iron core 600 is reset, the tripping part 300 loses external force and resets under the action of the torsion spring, and the tripping part is reset accordingly.

[0048] The button set on the outside of the circuit breaker corresponds to the position of the pushing surface 102 of the pull rod 100. Pressing the button can push the pushing surface 102, the spring is compressed, and the pull rod 100 moves to the left, which can drive the locking part 201 to move to the left, and at the same time, the locking part 201 abuts against the jumping part, so that the jumping part resists the downward movement of the torsion spring, that is, the jumping part 300 rotates in the clockwise direction as a whole, and the locking part 201 continues to move to the left until the locking part 201 moves to the jumping groove 302, and the torsion spring drives the jumping part 300 to rotate in the counterclockwise direction, so that the jumping protrusion 301 of the jumping part is inserted and abuts against the right side of the locking part 201, and the jumping groove 302 contacts or abuts against the lower end surface of the locking part 201, and the jumping part locks the locking part 201, that is, the locking is completed, and the circuit breaker can be closed again after the fault is eliminated.

[0049] The locking member 200 of the magnetic flux release is embedded in the pull rod member 100 , which does not affect the insulation state between the locking member 200 and the circuit breaker and can also extend the service life of the magnetic flux release.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A magnetic flux release, characterized in that: include: A pull rod (100), wherein an inlay groove is formed on the pull rod (100); A locking member (200), wherein the locking member (200) is embedded in the embedding groove, and a locking portion (201) is provided on the locking member (200), and the pull rod (100) is movable so that the locking portion (201) is switched between a locking position and a release position; A jump buckle member (300) is provided with a jump buckle portion, and when the jump buckle member (300) is not triggered and the locking portion is placed in the locking position, the jump buckle portion can lock the locking portion (201).

2. The magnetic flux release according to claim 1, characterized in that: The pull rod (100) is made of non-metallic material, and the locking component (200) is made of metallic material.

3. The magnetic flux release according to claim 1, characterized in that: It also includes a bracket (800) and a first elastic member (400), the pull rod member (100) is slidably connected to the bracket (800), the two ends of the first elastic member (400) are respectively abutted against the bracket (800) and the pull rod member (100), and the first elastic member (400) has a tendency to move the pull rod member (100) so that the locking part moves from the locking position to the release position.

4. The magnetic flux release according to claim 3, characterized in that: The bracket (800) is provided with a guide groove (802), and the pull rod (100) is provided with a guide portion (101), and the guide portion (101) is slidably disposed in the guide groove (802).

5. The magnetic flux release according to claim 1, characterized in that: The invention also comprises a bracket (800) and a second elastic member (500), wherein the jumper member (300) is rotatably connected to the bracket (800), and two ends of the second elastic member (500) are respectively connected to the bracket (800) and the jumper member (300), and the second elastic member (500) has a tendency to rotate the jumper member (300) until the jumper portion and the locking portion (201) are locked.

6. The magnetic flux release according to claim 5, characterized in that: The second elastic member (500) comprises a torsion spring, one end of which is connected to the jumper (300), and the other end of which is connected to the bracket (800).

7. The magnetic flux release according to claim 6, characterized in that: The bracket (800) is provided with a rotating shaft (700), the jumper (300) is rotatably arranged on the rotating shaft (700), and the torsion spring is sleeved on the rotating shaft (700) and placed between the jumper (300) and the bracket (800).

8. The magnetic flux release according to any one of claims 1 to 7, characterized in that: It also includes an iron core (600), and the jumper (300) also has a force-bearing portion (305). The iron core (600) can push the force-bearing portion (305) to make the jumper portion break away from the position of locking the locking portion (201).

9. The magnetic flux release according to any one of claims 1 to 7, characterized in that: The jump buckle portion comprises a jump buckle protrusion (301) and a jump buckle groove (302); the locking portion (201) is located at the release position; the jump buckle protrusion (301) can be pressed against one side of the locking portion (201) to lock the locking portion (201); and the jump buckle groove (302) is used to accommodate the locking portion (201) located at the locking position.

10. The magnetic flux release according to any one of claims 1 to 7, characterized in that: The locking member (200) is riveted or screwed to the pull rod member (100).

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