阅读说明：本技术 一种用于电力电子设备的磁保持继电器 (Magnetic latching relay for power electronic equipment ) 是由 吕伟 于 2019-11-27 设计创作，主要内容包括：本发明涉及电子器件领域,且公开了一种用于电力电子设备的磁保持继电器,包括壳体,壳体的内部设有内置槽、线圈组件设于内置槽的一侧,衔铁组件设于内置槽内且位于线圈组件的一侧,所述衔铁组件的形状为圆柱状,且衔铁组件远离线圈组件的一侧设有转齿,所述内置槽内设有位于衔铁组件转齿一侧的传动齿轮。该用于电力电子设备的磁保持继电器,通过旋转式衔铁组件以及传动齿轮、传动组件的设计,利用衔铁组件通电的旋转动作直接驱动动触头横向移动,取消了推力杆和推片的推动方式,无需克服推片移动时的摩擦阻力,在通电电流、电压均不变的情况下,使得磁保持继电器动作的可靠性提高,有效的保障了磁保持继电器的合断的工作效率。(The invention relates to the field of electronic devices, and discloses a magnetic latching relay for power electronic equipment, which comprises a shell, wherein a built-in groove is arranged in the shell, a coil assembly is arranged on one side of the built-in groove, an armature assembly is arranged in the built-in groove and is positioned on one side of the coil assembly, the armature assembly is cylindrical, a rotating tooth is arranged on one side, away from the coil assembly, of the armature assembly, and a transmission gear positioned on one side of the rotating tooth of the armature assembly is arranged in the built-in groove. This a magnetic latching relay for power electronic equipment, through the design of rotation type armature subassembly and drive gear, drive assembly, utilize the rotary motion direct drive moving contact lateral shifting of armature subassembly circular telegram, cancelled the promotion mode of distance rod and ejector pad, need not to overcome the frictional resistance when the ejector pad removes for the reliability of magnetic latching relay action improves, the effectual work efficiency who ensures magnetic latching relay's the shut-off under the circumstances that electrified current, voltage are all unchangeable.)

1. The utility model provides a magnetic latching relay for power electronic equipment, includes casing (1), and the inside of casing (1) is equipped with built-in groove (2), one side of built-in groove (2) is located in coil pack (3), and armature subassembly (4) are located built-in groove (2) and are located one side of coil pack (3), its characterized in that: the armature component (4) is cylindrical, a rotating tooth is arranged on one side, away from the coil component (3), of the armature component (4), a transmission gear (8) located on one side, away from the rotating tooth, of the armature component (4) is arranged in the built-in groove (2), two rotating shafts in the middle of the transmission gear (8) are movably sleeved with the inner wall of the shell (1), the outer edge of the transmission gear (8) is meshed with the outer edge of the side face of the armature component (4), a transmission component (9) is arranged on one side, away from the armature component (4), of the transmission gear (8), a static contact (5) and a moving contact (6) are sequentially arranged on one side, away from the coil component (3), of the built-in groove (2), a soft wire (7) is electrically connected between the static contact (5) and the moving contact (6) and two pins, one side, away from the static contact (5), of the moving contact (6) is, the moving contact (6) moves horizontally along with the transmission component (9).

2. A magnetic latching relay for a power electronic device according to claim 1, characterized in that: the transmission assembly (9) comprises a positioning shaft (901), two linkage shafts (902) and a limiting shaft (903), the positioning shaft (901) is fixedly sleeved on one side, away from the armature assembly (4), of the transmission gear (8), the two ends of the positioning shaft (901) extend out of the transmission gear (8), the two linkage shafts (902) are movably sleeved on the two ends of the positioning shaft (901) respectively, the limiting shaft (903) is movably sleeved on the other ends of the two linkage shafts (902), the limiting shaft (903) is movably sleeved with one side of the movable contact (6), limiting blocks (10) located on the two sides of the linkage shafts (902) are arranged inside the built-in groove (2), horizontal sliding grooves are formed in the two limiting blocks (10), and the two sliding grooves are movably sleeved on the two ends of the limiting shaft (903) respectively.

3. A magnetic latching relay for a power electronic device according to claim 1, characterized in that: and a buffer layer is arranged on one side of the static contact (5) far away from the moving contact (6), and the other side of the buffer layer is fixedly connected with the side wall of the built-in groove (2).

Technical Field

The invention relates to the field of electronic devices, in particular to a magnetic latching relay for power electronic equipment.

Background

The magnetic latching relay is a new type relay developed in recent years, different from other electromagnetic relays, the normally closed or normally open state of the magnetic latching relay completely depends on the action of permanent magnetic steel, the switching of the switch state is completed by the triggering of pulse electric signals with certain width, and the magnetic latching relay is widely applied to remote control, remote measurement, communication, automatic control, electromechanical integration and power electronic equipment and is one of the most important control elements.

The existing magnetic latching relay switching principle is referred to as follows (fig. 4): after the coil in the coil component 3 is electrified with direct current, the magnetic force of the magnetic steel in the armature component 4 is changed after being excited, and the magnetic steel is attracted with the armature in the coil component 3, so that the armature component 4 is made to rotate to drive the thrust rod 11 to act, the elastic force of the spring piece 15 is overcome, the push piece 12 is pushed to transversely move in the limiting groove 13, the movable contact 6 is driven to act to be in contact with the static contact 5, and the closing of the movable contact is realized; and through the coil in the coil block 3 is electrified with the reverse direct current, the magnetic force of the magnet steel in the armature block 4 is excited to generate the reverse change, and the magnet steel is repelled with the armature block in the coil block 3, so that the armature block 4 is enabled to rotate to drive the thrust rod 11 to move reversely, and the moving contact 6 is driven to move and separate from the static contact 5 by pushing the push sheet 12 to move transversely in the limiting groove 13 reversely, thereby realizing the disconnection of the moving contact.

However, in the conventional magnetic latching relay, in order to ensure that the push plate 12 horizontally moves, the limit groove 13 limits the push plate 12, when the thrust rod 11 rotates along with the armature assembly 4, the push plate 12 has a component force which is upward or downward, so that the friction force between the push plate 12 and the inside of the limit groove 13 is large when the push plate 12 moves horizontally, and the push plate 12 is easily blocked, so that a large part of the driving force of the armature assembly 4 is consumed on the friction force between the push plate 12 and the limit groove 13, which causes the reliability of the operation of the magnetic latching relay to be reduced, and the working efficiency of the make-and-break of the magnetic latching relay is affected, and in the process that the moving contact 6 moves horizontally to a static state, the spring piece 15 moves along with the movement and generates elastic deformation, so that the stress point of the resistance when the moving contact 6 is static is always located at F (the connection point of the spring piece 15 and the pin), namely, the F point is subjected to large acting force, and after the F point is used for a long time, the spring piece 15 is easily disconnected with the rigid connection of the pins, so that the magnetic latching relay is damaged and cannot work normally.

Disclosure of Invention

In view of the above-mentioned shortcomings of the background art, the present invention provides a magnetic latching relay for power electronic devices, which has the advantages of high reliability and uneasy damage, and solves the problems of the background art.

The invention provides the following technical scheme: a magnetic latching relay for power electronic equipment comprises a shell, wherein a built-in groove is formed in the shell, a coil assembly is arranged on one side of the built-in groove, an armature assembly is arranged in the built-in groove and located on one side of the coil assembly, the armature assembly is cylindrical, a rotating tooth is arranged on one side, away from the coil assembly, of the armature assembly, a transmission gear is arranged in the built-in groove and located on one side of the rotating tooth of the armature assembly, two rotating shafts in the middle of the transmission gear are movably sleeved with the inner wall of the shell, the outer edge of the transmission gear is meshed with the outer edge of the side face of the armature assembly, a transmission assembly is arranged on one side, away from the armature assembly, of the transmission gear, a static contact and a moving contact are sequentially arranged on one side, away from the coil assembly, of the built-in groove, a soft wire is electrically connected between the static contact and, the moving contact moves horizontally along with the transmission component.

Preferably, the transmission assembly comprises a positioning shaft, two linkage shafts and a limiting shaft, the positioning shaft is fixedly sleeved on one side, away from the armature assembly, of the transmission gear, the two ends of the positioning shaft extend out of the transmission gear, the two linkage shafts are movably sleeved on the two ends of the positioning shaft respectively, the limiting shaft is movably sleeved on the other ends of the two linkage shafts, the limiting shaft is movably sleeved on one side of the movable contact, limiting blocks located on the two sides of the linkage shafts are arranged inside the built-in groove, horizontal sliding grooves are formed in the two limiting blocks, and the two sliding grooves are movably sleeved on the two ends of the limiting shaft respectively.

Preferably, a buffer layer is arranged on one side of the static contact, which is far away from the moving contact, and the other side of the buffer layer is fixedly connected with the side wall of the built-in groove.

The invention has the following beneficial effects:

according to the magnetic latching relay for the power electronic equipment, through the design of the rotary armature component, the transmission gear and the transmission component, the moving contact is directly driven to transversely move by utilizing the electrified rotary action of the armature component, the pushing mode of the thrust rod and the push piece is cancelled, the friction resistance when the push piece moves is not required to be overcome, the reliability of the action of the magnetic latching relay is improved under the condition that the electrified current and the voltage are not changed, and the on-off working efficiency of the magnetic latching relay is effectively ensured; the armature component rotates to directly control the opening and closing of the moving contact and the static contact, the transmission component keeps the moving contact in a transverse moving mode, the spring piece is not needed, the situation that the rigid connection of the spring piece and the pins is disconnected is avoided, the electric connection between the moving contact and the pins is effectively guaranteed and is not prone to damage, the magnetic latching relay is effectively normally damaged for a long time, meanwhile, after the moving contact and the static contact are in contact impact, the moving contact cannot be separated and closed, and the contacts cannot be damaged under the condition that current passes through, so that the service life and the reliability of the magnetic latching relay are further prolonged.

Drawings

FIG. 1 is a schematic diagram of a magnetic latching relay closure of the present invention;

FIG. 2 is a schematic diagram of the magnetic latching relay of the present invention being opened;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic structural diagram of a conventional magnetic latching relay.

In the figure: 1. a housing; 2. a built-in groove; 3. a coil assembly; 4. an armature assembly; 5. static contact; 6. a moving contact; 7. a flexible wire; 8. a transmission gear; 9. a transmission assembly; 901. positioning the shaft; 902. a linkage shaft; 903. a limiting shaft; 10. a limiting block; 11. a thrust rod; 12. pushing the sheet; 13. a limiting groove; 14. a connecting shaft; 15. a spring plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a magnetic latching relay for power electronic equipment comprises a housing 1, a built-in groove 2 is arranged inside the housing 1, a coil assembly 3 is arranged on one side of the built-in groove 2, an armature assembly 4 is arranged in the built-in groove 2 and is positioned on one side of the coil assembly 3, the armature assembly 4 is cylindrical, a rotating tooth is arranged on one side of the armature assembly 4 away from the coil assembly 3, a transmission gear 8 positioned on one side of the rotating tooth of the armature assembly 4 is arranged in the built-in groove 2, two rotating shafts in the middle of the transmission gear 8 are movably sleeved with the inner wall of the housing 1, the outer edge of the transmission gear 8 is meshed with the outer edge of the side surface of the armature assembly 4, a transmission assembly 9 is arranged on one side of the transmission gear 8 away from the armature assembly 4, a static contact 5 and a moving contact 6 are sequentially arranged on one side of the built-in groove 2 away from the coil assembly 3, one side of the moving contact 6, which is far away from the static contact 5, is movably sleeved with one side of the transmission assembly 9, the moving contact 6 horizontally moves along with the transmission assembly 9, and is meshed with the transmission gear 8 through the rotating teeth on the armature assembly 4, and the transmission assembly 9 is arranged between the transmission gear 8 and the moving contact 6, so that the moving contact 6 is directly driven to transversely move by the rotation action of the armature assembly 4 when the armature assembly is electrified, the pushing mode of the existing magnetic latching relay thrust rod and the push piece is cancelled, the friction resistance when the push piece moves does not need to be overcome, the reliability of the action of the magnetic latching relay is improved under the condition that the electrified current and the voltage are not changed, and the on-off working efficiency of the; the armature component 4 rotates to directly control the on-off of the moving contact 6 and the static contact 5, the transmission component 9 keeps the moving contact to move transversely, a spring piece is not needed, the situation that the spring piece is disconnected with the pins in a rigid connection mode is avoided, the electric connection between the moving contact 6 and the pins is effectively guaranteed, the moving contact is not prone to damage, and the magnetic latching relay is damaged and works normally effectively for a long time.

Wherein, the transmission assembly 9 comprises a positioning shaft 901, two linkage shafts 902 and a limiting shaft 903, the positioning shaft 901 is fixedly sleeved on one side of the transmission gear 8 far away from the armature assembly 4, two ends of the positioning shaft 901 extend out of the transmission gear 8, the two linkage shafts 902 are movably sleeved on two ends of the positioning shaft 901 respectively, the limiting shaft 903 is movably sleeved on the other end of the two linkage shafts 902, the limiting shaft 903 is movably sleeved with one side of the movable contact 6, the inside of the built-in groove 2 is provided with a limiting block 10 positioned on two sides of the linkage shaft 902, the two limiting blocks 10 are provided with horizontal sliding grooves, the two sliding grooves are movably sleeved on two ends of the limiting shaft 903 respectively, when the transmission gear 8 rotates along with the armature assembly 4, the transmission assembly 9 moves towards the right side, the limiting of the limiting shaft 903 is limited by the sliding grooves on the limiting blocks 10, so that the movable, and the moving contact 6 is separated from the static contact 5, and on the contrary, the moving contact is contacted with the static contact 5, so that the on-off circuit of the magnetic latching relay is realized.

Wherein, the static contact 5 is kept away from one side of moving contact 6 and is equipped with the buffer layer, and the opposite side of buffer layer and the lateral wall fixed connection of built-in groove 2, and the radius of drive gear 8 and the radius of armature subassembly 4's ratio depends on the size of armature subassembly 4, for example: when the armature component 4 can rotate by 30 degrees, the ratio of the radius of the transmission gear 8 to the radius of the armature component 4 is 2:3, the maximum distance value between the movable contact 6 and the static contact 5 is smaller than the radius value of the transmission gear 8, after the armature component 4 is electrified to rotate, the movable contact 6 is in contact with the static contact 5, a small distance is further reserved for the movable contact 6 and the static contact 5 to buffer, so that the movable contact 6 and the static contact 5 are always kept in a contact state, when the armature component 4 can rotate by other angles, the ratio of the radius of the transmission gear 8 to the radius of the armature component 4 can ensure that the movable contact 6 is in separated contact with the static contact 5, and the specific distance value is determined according to the use environment of the magnetic isolation relay.

When the magnetic latching relay is used, a coil in the coil assembly 3 is electrified from two pins of the coil, a magnetic field is generated by electrifying to magnetize magnetic steel in the armature assembly 4, the magnetic steel is attracted with the armature in the coil assembly 3, so that the armature assembly 4 rotates, the transmission gear 8 is driven to rotate, the linkage shaft 902 rotates along with the transmission gear 8 to pull the moving contact 6 to move right to be separated from the static contact 5, so that the two pins of the magnetic latching relay are opened and maintained, the rest static contacts 5 of the moving contact 6 cannot be separated and closed, and the contacts cannot be damaged under the condition that current passes through, so that the service life and the reliability of the magnetic latching relay are improved; the coil in the coil component 3 is connected with an opposite circuit through two pins of the coil, a magnetic field is generated by electrifying to reversely magnetize the magnetic steel in the armature component 4, the magnetic steel is repelled with the armature in the coil component 3, so that the armature component 4 reversely rotates, the transmission gear 8 is driven to reversely rotate, the movable contact 6 is pulled by the linkage shaft 902 along with the rotation of the transmission gear 8 to move left to be contacted with the fixed contact 5, and the two pins of the magnetic latching relay are connected and held.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.