Magnetic latching relay with gear transmission structure

Abstract

The utility model discloses a magnetic latching relay with a gear transmission structure, which is characterized in that one end of a transmission piece is matched and linked with a magnetic circuit mechanism, and the other end of the transmission piece is provided with a first tooth part meshed with a gear; the movable contact mechanism comprises a first support, a second support and a second elastic piece, one end of the first support is provided with a second tooth part meshed with the gear, and the first support overcomes the movement stroke in the movement process and then drives the second support to move in the first direction; the movable contact assembly comprises at least two movable contact pieces which are arranged in parallel; the second elastic piece is located between the first support and the second support. A static contact matched with the moving contact is arranged at one end of the static contact piece; the first bracket and the second bracket move relative to the guide piece; the first elastic piece provides auxiliary force for the first support. The movable contact assembly moves up and down, the distance between the movable contact assembly and the static contact assembly is increased, the parallel connection effect is formed through the multiple movable contact pieces, and the contact resistance is reduced; through gear transmission, the first support is more stable in the moving process.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a magnetic latching relay with a gear transmission structure. Background Technology

[0002] Magnetic latching relays automatically connect and disconnect circuits. They are suitable for many products, such as electricity meters and smart home devices. Especially in electricity meters, to improve safety standards, national standards for electricity meters are constantly being improved and revised, requiring adjustments to the structure of the magnetic latching relays located inside the meters. The latest standards specify requirements for parameters such as the spacing between the moving and stationary contacts and the contact resistance, necessitating adjustments by those skilled in the art to meet these requirements. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is how to adjust the structure to meet the requirements of the corresponding parameters. To this end, a magnetic latching relay with a gear transmission structure is provided, comprising:

[0004] A transmission component, one end of which is engaged and linked with a magnetic circuit mechanism, and the other end of which is provided with a first tooth;

[0005] Gear, the gear meshing with the first tooth portion;

[0006] A movable contact mechanism includes a first support, a second support, and a second elastic element. One end of the first support has a second tooth that meshes with a gear. The first support reciprocates along a first direction. A movable stroke is provided between the first and second supports. During movement, the first support overcomes the movable stroke and drives the second support to move along the first direction. A movable contact assembly is fixed to the second support. The movable contact assembly includes at least two movable contact pieces arranged in parallel, with movable contacts at both ends of each piece. The second elastic element is located between the first and second supports.

[0007] A stationary contact assembly includes a stationary contact piece, which is correspondingly disposed with a moving contact piece. One end of the stationary contact piece is provided with a stationary contact that cooperates with the moving contact, and the other end of the stationary contact piece extends outward.

[0008] A guide member passes through the first bracket and the second bracket, and the first bracket and the second bracket move relative to the guide member;

[0009] The first elastic element provides an auxiliary force to the first support.

[0010] It also includes a fixed shaft, on which the gear is mounted and rotates relative to the fixed shaft.

[0011] It also includes a housing, which has a fixed cavity, and the fixed shaft and the gear are housed in the fixed cavity.

[0012] One of the first bracket and the second bracket is provided with a first buckle, and the other of the first bracket and the second bracket is provided with a first slot, and the first buckle moves in the first slot.

[0013] The second bracket is provided with a support leg, and the first slot is provided on the support leg; the first bracket is provided with a sliding groove, and the side wall of the sliding groove is provided with a limiting protrusion, the support leg extends to the sliding groove, and the limiting protrusion cooperates with the support leg.

[0014] It also includes a housing, which is provided with a fixing block. One end of the guide member cooperates with the fixing block, and the other end of the guide member extends along a first direction toward the inner wall of the housing.

[0015] The guide member is provided with a limiting boss, and the first elastic member is sleeved on the guide member. One end of the first elastic member abuts against the limiting boss, and the other end of the first elastic member abuts against the first bracket.

[0016] The movable contact is connected to a first magnetic yoke and also includes a housing, the inner wall of which is fixed with a second magnetic yoke that cooperates with the first magnetic yoke.

[0017] The first direction is set vertically to a horizontal plane; or, the first direction is set at an angle, and it also includes a housing, the housing having an energy storage cavity, the first elastic member being housed in the energy storage cavity, and the first elastic member abutting against the end of the guide member away from the second bracket.

[0018] It also includes a housing, which has a first chamber and a second chamber, which are independently arranged. The magnetic circuit mechanism is housed in the first chamber, and the static contact assembly is housed in the second chamber.

[0019] The magnetic circuit mechanism includes a coil assembly, an armature assembly, and a connecting structure. The coil assembly and the armature assembly cooperate to generate an oscillating force that drives the transmission component to move. The connecting structure includes a transmission groove disposed at one end of the transmission component and a push rod disposed on the armature assembly and inserted into the transmission groove. A connecting shaft that is slidably connected to the transmission groove is formed on the push rod.

[0020] The second chamber is equipped with heat dissipation holes.

[0021] The technical solution of this utility model has the following advantages:

[0022] 1. This utility model provides a magnetic latching relay with a gear transmission structure. The up-and-down movement of the moving contact assembly increases the distance between the moving and stationary contact assemblies. Furthermore, the parallel connection of multiple moving contact pieces reduces contact resistance. The travel distance provides a buffering effect, preventing malfunctions. The guide member provides guidance, with both the first and second supports moving along it. This guiding structure is stable and easy to install and fix. The second elastic member applies pressure to the contacts, resulting in better electrical connection. The gear transmission makes the first support more stable during movement.

[0023] 2. This utility model provides a magnetic latching relay with a gear transmission structure. The fixed shaft configuration better achieves the rotation effect of the gear. Alternatively, other rotational connection methods can also be used.

[0024] 3. The magnetic latching relay with gear transmission structure provided by this utility model has a fixed cavity, which makes the gear more secure and less prone to slippage.

[0025] 4. The magnetic latching relay with gear transmission structure provided by this utility model features a second elastic element. The first latch slides in the first slot and, in conjunction with the second elastic element, forms the aforementioned active stroke. Simultaneously, the second elastic element better controls contact pressure and improves the stability of the electrical connection.

[0026] 5. The present invention provides a magnetic latching relay with a gear transmission structure, wherein the limiting protrusion restricts the movement of the support foot outward, so that the support foot can only slide along the direction of the slide groove, thereby restricting movement in other directions.

[0027] 6. The magnetic latching relay with gear transmission structure provided by this utility model has a fixing block that better achieves the fixing effect of the guide component. The fixing block is also provided with reinforcing ribs.

[0028] 7. The magnetic latching relay with gear transmission structure provided by this utility model has a limiting boss that better fixes the first elastic element, so that the first elastic element can move more stably during the movement.

[0029] 8. The present invention provides a magnetic latching relay with a gear transmission structure. When the entire electrical circuit is energized, a magnetic field is generated between the first magnetic yoke and the second magnetic yoke. The two magnetic fields attract each other, which can better realize the electrical connection between the moving contact and the stationary contact and improve the stability of the connection.

[0030] 9. The present invention provides a magnetic latching relay with a gear transmission structure. The first direction is vertical to the horizontal plane, the directional positioning is complete, which is convenient for processing and installation; the inclined setting can increase the electrical clearance between two adjacent stationary contacts, thereby achieving a better isolation effect.

[0031] 10. The present invention provides a magnetic latching relay with a gear transmission structure, which has independent chambers to prevent electrical interference. The first chamber is for low voltage and the second chamber is for high voltage.

[0032] 11. The present invention provides a magnetic latching relay with a gear transmission structure, which directly cooperates with the transmission groove through the push rod, shortening the distance between the coil assembly and the first bracket, thereby reducing the width of the entire magnetic latching relay with gear transmission structure, thus meeting the installation requirements of the magnetic latching relay with gear transmission structure in the energy meter. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the magnetic latching relay with gear transmission structure provided by this utility model;

[0035] Figure 2 A partial structural schematic diagram of the magnetic latching relay with gear transmission structure provided by this utility model;

[0036] Figure 3 for Figure 2 A schematic diagram of the structure after removing the fixing plate;

[0037] Figure 4 for Figure 3 Side view;

[0038] Figure 5 for Figure 3 A sectional view;

[0039] Figure 6 A schematic diagram of the structure of the first bracket, the second bracket, and the movable contact piece provided by this utility model;

[0040] Figure 7 A schematic diagram of a magnetic latching relay with a gear transmission structure provided by this utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] 11. First bracket; 12. Second bracket; 13. Second elastic element; 14. Moving contact piece; 15. Stationary contact piece; 16. Guide element; 17. First elastic element; 18. First buckle; 19. First slot; 20. First magnetic yoke; 21. Housing; 22. Second magnetic yoke; 23. Coil assembly; 24. Armature assembly; 25. Shielding cover; 26. Transmission element; 27. Gear; 28. Fixed shaft; 29. ​​Fixed plate; 111. Slide groove; 112. Limiting protrusion; 13. First positioning post; 114. First through hole; 116. Second toothed part; 121. Support leg; 122. Fixing part; 123. Second through hole; 141. Moving contact; 151. Stationary contact; 161. Limiting boss; 201. Second positioning post; 211. Fixing block; 212. First chamber; 213. Second chamber; 214. Heat dissipation hole; 215. Fixing cavity; 241. Push rod; 242. Connecting shaft; 261. First toothed part; 262. Transmission groove. Detailed Implementation

[0043] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0047] Example 1

[0048] This embodiment provides a magnetic latching relay with a gear transmission structure, as shown in the attached figure. Figures 1-6 As shown, it includes:

[0049] The transmission component 26 has one end that engages with the magnetic circuit mechanism, which drives the transmission component 26 to move. In this embodiment, the direction of movement of the transmission component 26 is perpendicular to the horizontal plane, i.e., the Z-axis direction. The other end of the transmission component 26 is provided with a first tooth 261; specifically, the first tooth 261 is a tooth-like structure used to mesh with the gear 27 for transmission. After the first tooth 261 meshes with the gear 27, it will drive the gear 27 to rotate.

[0050] Gear 27 meshes with the first tooth 261 located on the left side, forming a transmission relationship between the two.

[0051] The moving contact mechanism includes a first support 11, a second support 12, and a second elastic element 13. One end of the first support 11 has a second tooth 116 that meshes with a gear 27. Specifically, the second tooth 116 has a toothed structure. The first tooth 261 and the second tooth 116 are arranged parallel to each other, with the first tooth 261 located to the left of the gear 27 and the second tooth 116 located to the right of the tooth. At this time, the first support 11 reciprocates along a first direction. There is a movable stroke between the first support 11 and the second support 12. During movement, the first support 11 overcomes the movable stroke and then drives the second support 12 to move along the first direction. Specifically, the movable stroke means that after moving a certain distance, the first support 11 overcomes the movable stroke before driving the second support 12 to move. The second support 12 is fixed with a moving contact assembly, which includes at least two moving contact pieces 14 arranged in parallel. Each moving contact piece 14 has a moving contact head 141 at both ends. When the first bracket 11 moves, it will drive the second bracket 12 to move, which is equivalent to the first bracket 11 driving the moving contact 14 toward the stationary contact 15, thus achieving the electrical connection effect. The second elastic element 13 is located between the first bracket 11 and the second bracket 12, and the second elastic element 13 is a spring.

[0052] The stationary contact assembly includes a stationary contact piece 15, which is correspondingly arranged with a moving contact piece 14. In this embodiment, there are two stationary contact pieces 15. When the moving contact piece 14 moves, an electrical connection is formed between the two stationary contact pieces 15, which is equivalent to the entire magnetic latching relay working. In this embodiment, one stationary contact piece 15 forms an electrical connection with the same end of different moving contact pieces 14. Specifically, for example, there are two moving contact pieces 14, and both ends of the two moving contact pieces 14 are provided with moving contacts 141. One end of the stationary contact piece 15 located at the left end is also provided with two stationary contacts 151, and one end of the stationary contact piece 15 located at the right end is also provided with two stationary contacts 151. The two stationary contacts 151 located at the left end are respectively electrically connected to the moving contacts 141 at the left end of the two moving contact pieces 14. The other end of the stationary contact 15 extends outward. Here, the other end of the stationary contact 15 extends vertically downward. This is because of the installation environment of the magnetic latching relay. When the magnetic latching relay is installed in the energy meter, the stationary contact 15 is set vertically downward. Therefore, the other end of the stationary contact 15 must extend vertically downward.

[0053] The guide member 16 passes through the first bracket 11 and the second bracket 12. The first bracket 11 and the second bracket 12 move relative to the guide member 16, which acts as a guide. For example, when the first direction is the Z-axis direction, the imaginary central axis of the guide member 16 is also located on the Z-axis, and the two are in the same direction.

[0054] The first elastic element 17 provides an auxiliary force to the first support 11. When the first support 11 moves toward the stationary contact piece 15, the first elastic element 17 accelerates the movement of the first support 11 and provides auxiliary power when the contact is closed. Conversely, when the first support 11 moves away from the stationary contact piece 15, the first elastic element 17 stores energy.

[0055] The up-and-down movement of the moving contact component increases the distance between the moving and stationary contact components. Secondly, the parallel connection of multiple moving contact pieces 14 reduces contact resistance. The travel distance acts as a buffer to prevent misoperation. The guide member 16 provides guidance, with both the first and second supports 11 moving along it. This guiding structure is stable and easy to install and fix. The second elastic member 13 applies pressure to the contacts, resulting in a better electrical connection. The gear 27 transmission further stabilizes the first support 11 during movement.

[0056] Specifically, it also includes a fixed shaft 28, on which a gear 27 is mounted and rotates relative to the fixed shaft 28. The fixed shaft 28 is designed to better achieve the rotational effect of the gear 27. Alternatively, other rotational connection methods can be used, such as the gear 27 and the fixed shaft 28 being an integral structure, with the fixed shaft 28 rotating relative to the housing 21 to generate the rotation of the gear 27.

[0057] Specifically, it also includes a housing 21, which has a fixing cavity 215 in which the fixing shaft 28 and gear 27 are housed. The fixing cavity 215 allows the gear 27 to be better fixed and less prone to slippage. The fixing cavity 215 is also connected to a fixing plate 29, which is used to limit the fixing of the shaft 28 and gear 27. The fixing plate 29 is fixedly connected to the end of the fixing shaft 28.

[0058] Specifically, as shown in the attached document Figures 1-6 As shown, one of the first bracket 11 and the second bracket 12 is provided with a first latch 18, and the other of the first bracket 11 and the second bracket 12 is provided with a first slot 19. The first latch 18 is movable in the first slot 19. The first latch 18 slides in the first slot 19 and, in conjunction with the second elastic member 13, forms the aforementioned movable stroke. Simultaneously, in conjunction with the second elastic member 13, it better achieves contact pressure and improves the stability of the electrical connection. It should be noted that the first bracket 11 and the second bracket 12 are movable in the first direction, but are locked in other directions and cannot be dislodged. The length of the movable stroke can be adjusted according to actual needs. Alternatively, other methods can be used to form the movable structure.

[0059] Specifically, as shown in the attached document Figures 2-6 As shown, the second bracket 12 is provided with a foot 121, and a first slot 19 is provided on the foot 121. The first bracket 11 is provided with a sliding groove 111, and a limiting protrusion 112 is provided on the side wall of the sliding groove 111. The foot 121 extends into the sliding groove 111, and the limiting protrusion 112 cooperates with the foot 121. The limiting protrusion 112 restricts the foot 121 from moving outward, so that the foot 121 can only slide along the direction of the sliding groove 111, thus restricting movement in other directions.

[0060] Specifically, as shown in the attached document Figures 2-6As shown, the first bracket 11 is provided with a first positioning post 113, and the first magnetic yoke 20 is provided with a second positioning post 201. In this embodiment, there are two first positioning posts 113 and two first magnetic yokes 20, that is, there are a total of two second positioning posts 201 for the two first magnetic yokes 20. There are two second elastic members 13. The two second elastic members 13 cooperate with the first positioning post 113 and the second positioning post 201 respectively. That is, one end of the second elastic member 13 is sleeved on the first positioning post 113 and abuts against the bottom surface of the first bracket 11, and the other end of the second elastic member 13 is sleeved on the second positioning post 201 and abuts against the top surface of the corresponding first magnetic yoke 20.

[0061] Specifically, as shown in the attached document Figures 2-6 As shown, the device also includes a housing 21, which has a fixing block 211. One end of the guide member 16 engages with the fixing block 211, and the other end of the guide member 16 extends along a first direction toward the inner wall of the housing 21. The fixing block 211 is provided to better achieve the fixing effect of the guide member 16. The fixing block 211 is also provided with reinforcing ribs to improve its strength.

[0062] Specifically, the guide member 16 is provided with a limiting boss 161, and the first elastic member 17 is sleeved on the guide member 16. One end of the first elastic member 17 abuts against the limiting boss 161, and the other end of the first elastic member 17 abuts against the first bracket 11. The limiting boss 161 better fixes the first elastic member 17, so that the first elastic member 17 can move more stably during movement. In this embodiment, the first elastic member 17 is a spring.

[0063] Specifically, as shown in the attached document Figures 2-6 As shown, the movable contact 14 is connected to a first magnetic yoke 20, and a second magnetic yoke 22, which cooperates with the first magnetic yoke 20, is fixed to the inner wall of the housing 21. When the entire electrical circuit is energized, a magnetic field is generated between the first magnetic yoke 20 and the second magnetic yoke 22. The two magnetic fields attract each other, which can better realize the electrical connection between the movable contact 14 and the stationary contact 15 and improve the stability of the connection. In this embodiment, the second magnetic yoke 22 is fixed to the lower inner wall of the housing 21, and one end of the guide 16 cooperates with the fixing block 211, while the other end of the guide 16 is connected and fixed to the second magnetic yoke 22. In this embodiment, there are two first magnetic yokes 20, and the two first magnetic yokes 20 correspond to the two movable contacts 14 respectively. The first magnetic yokes 20 cooperate with the second bracket 12 to fix the movable contact 14. Here, the first magnetic yoke 20 and the second bracket 12 can be riveted or connected by other means.

[0064] Specifically, as shown in the attached document Figures 2-6As shown, the second bracket 12 includes two legs 121 and a fixing part 122. The two ends of the fixing part 122 are respectively connected to the two legs 121 to form a U-shaped structure. The movable contact piece 14 abuts against the top surface of the fixing part 122, and the two ends of the movable contact piece 14 extend to the outside of the fixing part 122. The first magnetic yoke 20 is partially located on the top surface of the movable contact piece 14, and the remaining part of the first magnetic yoke 20 extends to the bottom surface of the fixing part 122, so that the fixing part 122 and the first magnetic yoke 20 cooperate to form a wrapping effect, so that the movable contact piece 14 is fixed and cannot shake.

[0065] Specifically, during the installation process, the first bracket 11, the second bracket 12, the second elastic element 13, the moving contact component, and the first elastic element 17 are formed into a module and then installed into the housing 21. The modular installation method achieves the effect of quick installation and fixation, making the installation simpler, reducing the assembly difficulty, and improving the processing effect.

[0066] Specifically, the first direction is set perpendicular to the horizontal plane, which is the Z-axis direction.

[0067] Specifically, the first bracket 11 is made of plastic, the first bracket 11 is suspended, and there is no connection between the first bracket 11 and the inner wall of the housing 21.

[0068] Specifically, the second bracket 12 is made of conductive metal, and the second bracket 12 is electrically connected to the two moving contacts 14.

[0069] Specifically, the first bracket 11 has a first through hole 114, and the second bracket 12 has a second through hole 123. The guide member 16 passes through the first through hole 114 and the second through hole 123 and is fixed to the second magnetic yoke 22. The first bracket 11 and the second bracket 12 slide on the guide member 16, that is, the first bracket 11 and the second bracket 12 move along the axial direction of the guide member 16. During the sliding process, the guide member 16 will not be at risk of breakage, thus improving the overall stability. At the same time, the guide member 16 also forms a connection and fixation between the first bracket 11 and the second bracket 12, making them form a modular structure, which facilitates assembly and improves processing efficiency.

[0070] Specifically, as shown in the attached document Figures 2-6As shown, the system also includes a housing 21, which has a first chamber 212 and a second chamber 213. The first chamber 212 and the second chamber 213 are independently arranged. The magnetic circuit mechanism is housed in the first chamber 212, and the static contact assembly is housed in the second chamber 213. The independent chambers prevent electrical interference; the first chamber 212 is for low-voltage electricity, and the second chamber 213 is for high-voltage electricity. In this embodiment, the first chamber 212 is located above, and the second chamber 213 is located below. The left sides of the first chamber 212 and the second chamber 213 are connected, while the right sides are separated. The magnetic circuit mechanism is located on the right side of the first chamber 212, the transmission component 26 and the gear 27 are located on the left side of the first chamber 212, a portion of the first support 11 is located on the left side of the first chamber 212, and the remainder of the first support 11 is distributed on the left side of the second chamber 213. The first support 11 can move up and down. The stationary contact assembly is located on the left side of the second chamber 213, below the first bracket 11, forming a diagonal arrangement with the magnetic circuit mechanism. The two are not directly connected, avoiding risks such as short circuits and creepage. This layout makes the entire magnetic latching relay nearly cubic in shape, compatible with existing electricity meter installation methods, eliminating the need to adjust the internal layout of the electricity meter, and offering good versatility.

[0071] Specifically, as shown in the attached document Figures 2-6 As shown, the magnetic circuit mechanism includes a coil assembly 23, an armature assembly 24, and a connecting structure. The coil assembly 23 and the armature assembly 24 cooperate to generate an oscillating force that drives the transmission component 26. The connecting structure includes a transmission groove 262 disposed at one end of the transmission component 26, and a push rod 241 disposed on the armature assembly 24 and inserted into the transmission groove 262. A connecting shaft 242 slidably connected to the transmission groove 262 is formed on the push rod 241. By directly cooperating with the transmission groove 262 through the push rod 241, the distance between the coil assembly 23 and the transmission component 26 is shortened, thereby reducing the width of the entire magnetic latching relay and thus meeting the installation requirements of the magnetic latching relay in the energy meter. In this embodiment, an improvement is made to the existing magnetic latching relay, so it is not possible to significantly increase the length, width, and height of the magnetic latching relay; only minor modifications can be made based on the existing design. The reason why the size cannot be increased significantly is due to the limited internal structural space of the electricity meter. The electricity meter also needs to install components such as current transformers and transformers. Increasing the size of the magnetic latching relay would require changing the entire internal layout of the electricity meter, which is obviously not suitable for manufacturers.

[0072] Specifically, the transmission slot 262 has an opening on the side facing the armature assembly 24 and an opening on the front side, making installation more convenient.

[0073] Specifically, as shown in the attached document Figure 1As shown, it also includes a shielding cover 25, which is fitted onto the outer surface of the housing 21 to form a signal shielding and protection effect to prevent interference.

[0074] Specifically, as shown in the attached document Figures 1-6 As shown, the housing 21 is provided with two heat dissipation holes 214. One heat dissipation hole 214 is located on the upper left side of the first chamber 212, and the other heat dissipation hole 214 is located in the second chamber 213. The heat dissipation holes 214 penetrate through the front and rear sides of the housing 21. Here, the heat dissipation hole 214 is also located on the right side of the second chamber 213.

[0075] Example 2

[0076] This embodiment provides a magnetic latching relay with a gear transmission structure, as shown in the attached figure. Figure 7 As shown, the difference between the embodiments is that the first direction is inclined, meaning the imaginary central axis of the guide 16 is not perpendicular to the horizontal plane, but rather inclined. The second tooth 116 is also inclined, meshing with the gear 27 to form an inclined transmission force. This inclined arrangement increases the electrical clearance between adjacent stationary contacts 15, achieving better isolation. The portions of the two stationary contacts 15 located within the second chamber 213 are also inclined. When the guide 16 is inclined, the moving contact 14 is also inclined, and consequently, the stationary contacts 15 are also inclined. It should also be noted that the transmission member 26 still moves perpendicular to the horizontal plane.

[0077] Specifically, the yoke of the coil assembly 23 is also inclined, and the inclination angle of the yoke is the same as that of the guide 16, and the two are arranged in parallel.

[0078] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A magnetic latching relay with a gear train, characterized by, The utility model relates to a kind of magnetic contactor, including: Transmission member (26), one end of the transmission member (26) is matched with magnetic circuit mechanism linkage, the other end of the transmission member (26) is equipped with first gear portion (261); Gear (27), the gear (27) is engaged with the first gear portion (261); Moving contact mechanism, the first support (11) is equipped with second gear portion (116) one end, the second gear portion (116) is engaged with the gear (27), the first support (11) reciprocates along first direction, first support (11) is equipped with movable stroke between the second support (12), the first support (11) drives the second support (12) movement along first direction after overcoming movable stroke in the process of movement;The second support (12) is fixed with moving contact subassembly, the moving contact subassembly includes at least two parallelly arranged moving contact pieces (14), and both ends of the moving contact piece (14) are equipped with moving contact head (141) respectively;Second elastic member (13) is located between the first support (11) and the second support (12); Static contact subassembly, the static contact subassembly includes static contact piece (15), the static contact piece (15) is correspondingly arranged with the moving contact piece (14), and one end of the static contact piece (15) is equipped with static contact head (151) matched with the moving contact head (141), and the other end of the static contact piece (15) extends outward; Guide (16), the guide (16) passes through the first support (11), the second support (12), and the first support (11) moves relative to the guide (16) the second support (12); First elastic member (17), the first elastic member (17) gives the first support (11) auxiliary force.

2. The magnetically latched relay with gear drive according to claim 1, characterized in that It further includes fixed shaft (28), the gear (27) is sleeved on the fixed shaft (28), and the gear (27) rotates relative to the fixed shaft (28).

3. The magnetically latched relay with gear drive according to claim 2, characterized in that It further includes shell (21), the shell (21) is equipped with fixed cavity (215), the fixed shaft (28), the gear (27) is housed in the fixed cavity (215).

4. The magnetically latched relay with gear drive structure according to claim 1, characterized in that, One of the first support (11) and the second support (12) is equipped with first buckle (18), the other of the first support (11) and the second support (12) is equipped with first clamping groove (19), and the first buckle (18) is movable in the first clamping groove (19).

5. The magnetically latched relay with gear drive structure according to claim 4, characterized in that, The second support (12) is equipped with support leg (121), and the first clamping groove (19) is arranged in the support leg (121);The first support (11) is equipped with sliding slot (111), and the sliding slot (111) side wall is equipped with limiting protrusion (112), the support leg (121) extends to the sliding slot (111), and the limiting protrusion (112) is matched with the support leg (121).

6. The magnetically latched relay with gear drive structure according to claim 1, characterized in that, The movable contact piece (14) is connected with a first magnetic yoke (20), and further comprises a shell (21), an inner wall of the shell (21) is fixed with a second magnetic yoke (22) matched with the first magnetic yoke (20).

7. The magnetically latched relay with gear drive according to claim 1, characterized in that, The first direction is arranged perpendicularly to a horizontal plane, or the first direction is arranged obliquely, and the device further comprises a shell (21) provided with an energy storage cavity, the first elastic member (17) is accommodated in the energy storage cavity, and the first elastic member (17) is in abutment with an end of the guide member (16) away from the second support (12).

8. The magnetically latched relay with gear drive according to claim 1, characterized in that The magnetic circuit mechanism comprises a coil assembly (23), an armature assembly (24) and a connecting structure, the coil assembly (23) and the armature assembly (24) cooperate to generate swing force for driving the transmission member (26) to move, the connecting structure comprises a transmission groove (262) arranged at one end of the transmission member (26) and a push rod (241) arranged on the armature assembly (24) and penetrating into the transmission groove (262), and the push rod (241) is formed with a connecting shaft (242) slidingly connected in the transmission groove (262).

9. The magnetically latched relay with gear drive according to claim 1, characterized in that, Further comprising a shell (21) provided with a first cavity (212) and a second cavity (213), the first cavity (212) and the second cavity (213) are arranged independently of each other, the magnetic circuit mechanism is accommodated in the first cavity (212), and the static contact assembly is accommodated in the second cavity (213).

10. The magnetically latched relay with gear drive structure according to claim 9, characterized in that, The second cavity (213) is provided with heat dissipation holes (214).

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