Relay and electric device

Abstract

The invention discloses a relay and an electric device, and belongs to the technical field of relays. The relay comprises a first shell, a support, a coil assembly, a second shell and a core assembly. The vertex angle of the side face of the first shell is concaved inwards to form a first receding groove, and a mounting structure corresponding to the first receding groove is arranged at the vertex angle of the bottom wall of the first shell. The support is installed in the first shell, the support comprises a first magnetic conductive side plate, a second magnetic conductive side plate and a third magnetic conductive side plate, and gaps corresponding to the first avoiding grooves are formed between every two adjacent magnetic conductive side plates and between the magnetic conductive side plates and the bottom wall of the support; the coil assembly is installed on the support. The second shell is connected with the first shell; the core assembly is installed in the second shell, and the sleeve of the core assembly extends into the coil assembly. The first receding groove is formed in the top corner of the side face of the first shell in a concave mode, the installation size of the relay can be reduced, meanwhile, the second magnetic conduction structure is additionally arranged on the wide edge of the support, and the magnetic flux of the relay can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of relays, and in particular, relates to a relay and an electrical device. Background Art

[0002] High-voltage DC relays usually adopt a solenoid direct-acting structure. Binding more magnetic flux lines in the magnetic circuit where the moving parts are located can effectively improve the performance of the relay. In related technologies, the bracket assembly is usually designed to be wider and thicker to improve the performance of the relay moving parts while avoiding magnetic saturation, but this will increase the size of the relay and there is room for improvement. Summary of the invention

[0003] The present application aims to at least solve the technical problem that the performance and size of the relay in the related art are difficult to balance. To this end, the present application proposes a relay and an electrical device, which can reduce the installation size of the relay and increase the magnetic flux of the relay.

[0004] In a first aspect, the present application provides a relay, comprising:

[0005] A first shell, the top corner of the side surface is concave to form a first avoidance groove, and a mounting structure corresponding to the first avoidance groove is provided at the top corner of the bottom wall of the first shell;

[0006] A bracket is installed in the first shell, the bracket includes a first magnetic conductive side plate, a second magnetic conductive side plate and a third magnetic conductive side plate, and a gap corresponding to the first avoidance groove is formed between two adjacent magnetic conductive side plates and between the magnetic conductive side plate and the bottom wall of the bracket;

[0007] A coil assembly is mounted on the bracket;

[0008] A second shell connected to the first shell;

[0009] The core component is installed in the second shell, and the sleeve of the core component extends into the coil component.

[0010] By forming the first avoidance groove inwardly at the top corner of the side of the first shell, the installation size of the relay can be reduced. At the same time, adding the second magnetic conductive structure on the wide side of the bracket can increase the magnetic flux of the relay, thereby increasing the electromagnetic force.

[0011] According to one embodiment of the present application, the bottom wall of the bracket has a first edge along a first direction and a second edge along a second direction, and the core assembly includes a plurality of main contacts distributed along the first direction;

[0012] The first magnetic conductive side plate and the third magnetic conductive side plate are arranged opposite to each other along the first direction, and each is connected to one of the second edges, and the second magnetic conductive side plate is connected to one of the first edges; wherein,

[0013] The lengths of the first magnetic conductive side plate and the third magnetic conductive side plate along the second direction are both shorter than the second edge, and the length of the second magnetic conductive side plate along the first direction is shorter than the first edge to form the gap.

[0014] The bottom wall of the bracket and its connection with a plurality of magnetically conductive side plates together constitute an important part of the internal structure of the relay, and the core assembly moves along this part to change the state of the contacts.

[0015] According to one embodiment of the present application, the width of the second magnetic conductive side plate is greater than the width of the first magnetic conductive side plate and the third magnetic conductive side plate.

[0016] The width of the second magnetic conductive side plate is greater than the widths of the first magnetic conductive side plate and the third magnetic conductive side plate, and can provide a larger magnetic flux path, thereby reducing magnetic resistance and improving electromagnetic efficiency.

[0017] According to one embodiment of the present application, the relay further includes:

[0018] A partition is supported on the top of the bracket and forms an outer contour line corresponding to the notch at a top corner.

[0019] The partition is supported on the top of the bracket, and an outer contour line corresponding to the notch is formed at the top corner, so that the structural stability and electromagnetic shielding performance of the relay can be enhanced.

[0020] According to one embodiment of the present application, protrusions are provided at both ends of the tops of the first magnetic conductive side plate, the second magnetic conductive side plate and the third magnetic conductive side plate, and the partition is riveted to the protrusions.

[0021] By firmly connecting the partition plate and the protrusion by riveting, the rigidity and stability of the support structure can be significantly increased, and loosening or deformation caused by vibration or impact during operation can be reduced.

[0022] According to one embodiment of the present application, the coil assembly includes:

[0023] The coil control circuit board is arranged on a side of the bracket where no magnetic conductive side plate is provided.

[0024] The coil control circuit board is arranged on the side of the bracket where no magnetic conductive side plate is provided, which can reduce electromagnetic interference and facilitate heat dissipation.

[0025] According to one embodiment of the present application, the coil assembly further includes:

[0026] A frame, wherein the coil control circuit board is mounted on the frame;

[0027] The coil is wound around the frame.

[0028] The skeleton, the coil control circuit board and the coil in the coil assembly work together to form the electromagnetic system part of the relay. The skeleton provides a stable support platform for the coil and the coil control circuit board. The coil control circuit board controls the switching action of the relay by controlling the current and voltage of the coil, and the coil drives the switching action of the relay by generating electromagnetic force.

[0029] According to one embodiment of the present application, the skeleton is integrated with a plurality of connection pins, and the plurality of connection pins are respectively electrically connected to the coil control circuit board or the coil.

[0030] The skeleton is integrated with a plurality of the connecting pins, so as to realize reliable connection between the internal circuit and the external circuit, and improve the integration and reliability of the whole component.

[0031] According to one embodiment of the present application, the core assembly includes: an auxiliary contact control circuit board, which is electrically connected to the auxiliary contact of the core assembly and is located on the side of the core assembly away from the coil control circuit board; the auxiliary contact control circuit board is electrically connected to the coil control circuit board through a lead-out plate, and the lead-out plate is installed on the outer side of the core assembly through a lead-out bracket.

[0032] The layout and connection method of the auxiliary contact control circuit board in the core assembly have an important impact on the performance and reliability of the relay. Through reasonable design and optimization, the impact of external electromagnetic interference on the internal circuit of the relay can be reduced and electromagnetic compatibility can be improved.

[0033] According to an embodiment of the present application, the frame is provided with a first positioning structure and a second positioning structure, the lead-out bracket is positioned by the first positioning structure, and the lead-out piece is positioned by the second positioning structure.

[0034] The first positioning structure and the second positioning structure provided on the frame can improve installation accuracy and structural stability, and can simplify the installation process.

[0035] According to an embodiment of the present application, the end surface of the skeleton facing the second shell is provided with a convex edge and a lug arranged alternately with the convex edge, and the first positioning structure includes the convex edge and the lug;

[0036] A boss protruding outward is provided on the side surface of the convex edge, the boss is provided with a positioning groove, and the second positioning structure includes the boss and the positioning groove.

[0037] The flange, lug, boss and positioning groove on the skeleton cooperate with each other to form the first positioning structure and the second positioning structure, which can enhance the overall structural strength of the skeleton and provide stable support and fixation for the lead-out bracket and the lead-out sheet, thereby helping to reduce installation errors and improve installation accuracy.

[0038] In a second aspect, the present application provides an electrical device, comprising:

[0039] A relay as described above.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0042] Figure 1 is an exploded schematic diagram of a relay provided in an embodiment of the present application;

[0043] Figure 2 is a schematic diagram of the structure of a relay provided in an embodiment of the present application;

[0044] Figure 3 is a schematic structural diagram of a bracket of a relay provided in an embodiment of the present application;

[0045] Figure 4 It is one of the structural schematic diagrams of the coil assembly of the relay provided in the embodiment of the present application;

[0046] Figure 5 This is the second structural schematic diagram of the coil assembly of the relay provided in the embodiment of the present application;

[0047] Figure 6 It is a structural schematic diagram of a coil assembly and a core assembly of a relay provided in an embodiment of the present application;

[0048] Figure 7 It is an exploded schematic diagram of the core assembly of the relay provided in the embodiment of the present application.

[0049] Reference numerals:

[0050] Relay 1;

[0051] A first housing 10, a first avoidance groove 110, and a mounting structure 120;

[0052] Bracket 20;

[0053] A magnetic conductive side plate 210, a first magnetic conductive side plate 211, a second magnetic conductive side plate 212, and a third magnetic conductive side plate 213;

[0054] Bottom wall 220, first edge 221, second edge 222;

[0055] Notch 230, partition 240, protrusion 250;

[0056] Coil assembly 30, coil control circuit board 310;

[0057] Frame 320, connecting feet 321, wire avoidance groove 322;

[0058] A first positioning structure 340, a flange 341, and a lug 342;

[0059] A second positioning structure 350, a boss 351, and a positioning groove 352;

[0060] A second housing 40;

[0061] Core assembly 50, sleeve 510, main contact 520, auxiliary contact control circuit board 530, auxiliary contact 540;

[0062] Auxiliary moving contact 551, spring 552, upper magnetic yoke 553, moving contact 554, lower magnetic yoke 555, compression spring 556, shaft assembly 557;

[0063] Arc extinguishing cover 560, neodymium magnet 570, silicone pad 580;

[0064] Lead-out piece 60, lead-out bracket 70;

[0065] The first direction is X, and the second direction is Y. DETAILED DESCRIPTION

[0066] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0067] The present application aims to at least solve the technical problem that the performance and size of the relay in the related art are difficult to balance. To this end, the present application proposes a relay and an electrical device, which can reduce the installation size of the relay and increase the magnetic flux of the relay.

[0068] Reference below Figure 1-Figure 7 A relay 1 according to an embodiment of the present application is described.

[0069] like Figure 1-Figure 3 As shown, the relay 1 includes: a first housing 10 , a bracket 20 , a coil assembly 30 , a second housing 40 and a core assembly 50 .

[0070] like Figure 2 As shown, the first shell 10 is formed by injection molding and has good insulation and flame retardancy. The side top corner of the first shell 10 is concave to form a first avoidance groove 110, which is used to provide space or avoidance for other components, such as a bracket 20 or a coil assembly 30, so as to reduce the space occupied by the relay 1. The mounting structure 120 is located at the top corner of the bottom wall 220 of the first shell 10, corresponding to the first avoidance groove 110, and is used to fix or support other components to improve the stability of the relay 1.

[0071] The bracket 20 is composed of a first magnetic conductive side plate 211, a second magnetic conductive side plate 212 and a third magnetic conductive side plate 213. The first shell 10 forms a first accommodating cavity. The first magnetic conductive side plate 211, the second magnetic conductive side plate 212 and the third magnetic conductive side plate 213 of the bracket 20 are respectively arranged corresponding to the three side walls of the first accommodating cavity.

[0072] like Figure 3 As shown, the plurality of magnetic conductive side plates 210 are mainly used to participate in the formation and conduction of the electromagnetic field, which helps to optimize the layout of the electromagnetic path, improve the electromagnetic efficiency and response speed of the relay 1, and can also play a supporting role. In addition, the gaps 230 formed between two adjacent magnetic conductive side plates 210, such as between the first magnetic conductive side plate 211 and the second magnetic conductive side plate 212 or between the second magnetic conductive side plate 212 and the third magnetic conductive side plate 213, and between the first magnetic conductive side plate 211, the second magnetic conductive side plate 212 and the third magnetic conductive side plate 213 and the bottom wall 220 of the bracket 20, respectively, all correspond to the first avoidance groove 110 of the first shell 10, thereby further enhancing the compactness and functionality of the structure of the relay 1.

[0073] like Figure 1 As shown, the coil assembly 30 is installed on the bracket 20 and is a key component for the relay 1 to generate electromagnetic force. When the coil is energized, a magnetic field is generated to attract or repel the iron core in the core assembly 50, thereby changing the switching state of the relay 1.

[0074] The second housing 40 is connected to the first housing 10 and together constitutes the outer shell of the relay 1. The second housing 40 is similar to the first housing 10 and is also formed by injection molding. It has good insulation and flame retardancy and its main function is to protect internal components from the influence of the external environment.

[0075] The core assembly 50 is installed in the second shell 40, and the sleeve 510 of the core assembly 50 extends into the coil assembly 30. The core assembly 50 generally includes components such as an iron core, an armature and a spring. When the coil is energized, the iron core is attracted to the coil assembly 30, driving the armature to move, thereby changing the contact state of the relay 1. The spring is used to reset the core assembly 50 when the coil is de-energized.

[0076] It can be understood that the relay 1 can achieve reliable control and conversion of electrical signals through the interaction between various components, wherein the outer shell formed by the first shell 10 and the second shell 40 protects the internal components, the bracket 20 and the coil assembly 30 jointly generate electromagnetic force, and the core assembly 50 changes the contact state according to the change of electromagnetic force, thereby realizing the switching function of the relay 1.

[0077] The high-voltage DC relay 1 usually adopts a solenoid direct-acting structure, and binding more magnetic flux lines in the magnetic circuit where the moving parts are located can effectively improve the performance of the relay 1. In the related art, the bracket 20 component is usually designed to be wider and thicker to improve the performance of the moving parts of the relay 1 while avoiding magnetic saturation, but this will cause the volume of the relay 1 to increase, and there is room for improvement. The present application adds a second magnetic conductive side plate 212 while maintaining the compact structure of the relay 1 to increase the magnetic flux of the relay 1 and avoid magnetic saturation.

[0078] According to the relay 1 provided in the embodiment of the present application, the installation size of the relay 1 can be reduced by forming a first avoidance groove 110 at the top corner of the side of the first shell 10. At the same time, adding a second magnetic conductive side plate 212 on the wide side of the bracket 20 can increase the magnetic flux of the relay 1, thereby increasing the electromagnetic force.

[0079] In some embodiments, Figure 3 As shown, the bottom wall 220 of the bracket 20 has a first edge 221 along the first direction X and a second edge 222 along the second direction Y, and the core assembly 50 includes a plurality of main contacts 520 distributed along the first direction X;

[0080] The first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 are arranged opposite to each other along the first direction X, and are respectively connected to a second edge 222, and the second magnetic conductive side plate 212 is connected to a first edge 221; wherein,

[0081] The lengths of the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 along the second direction Y are shorter than the second edge 222 . The length of the second magnetic conductive side plate 212 along the first direction X is shorter than the first edge 221 to form a gap 230 .

[0082] The bottom wall 220 of the bracket 20 has two main edges, namely a first edge 221 along the first direction X and a second edge 222 along the second direction Y. The first edge 221 and the second edge 222 together define the size and shape of the bottom wall 220 and also affect the layout of other components on the bracket 20.

[0083] The first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 are arranged opposite to each other along the first direction X, and the lengths of the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 along the second direction Y are both smaller than the second edge 222, that is, the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 extend along the two narrow sides of the bottom wall 220 respectively, and the second magnetic conductive side plate 212 is connected to a first edge 221, that is, the second magnetic conductive side plate 212 extends along the wide side of the bottom wall 220. This layout helps to form a stable supporting structure and optimize the distribution of the electromagnetic field. In addition, the other first edge 221 is not provided with a magnetic conductive side plate 210, which is used to provide installation space for components of the coil assembly 30 that need to be avoided, such as the coil control circuit board 310, the lead-out bracket 70 or the lead-out sheet 60.

[0084] The lengths of the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 along the second direction Y are both smaller than the second edge 222, leaving space on the wide side of the bottom wall 220 to form a gap 230. Similarly, the length of the second magnetic conductive side plate 212 along the first direction X is smaller than the first edge 221, leaving space on both sides of the narrow side of the bottom wall 220, further enhancing the formation of the gap 230. These gaps 230 can be used to accommodate part of the coil assembly 30 or other components that need to be avoided.

[0085] The core assembly 50 includes a plurality of main contacts 520 distributed along a first direction X. The main contacts 520 are mainly used to introduce a high-voltage circuit into and out of the core assembly 50, and are connected to the core assembly 50 through a brazing process. The plurality of main contacts 520 distributed along the first direction X enable the core assembly 50 to move along the first direction X, thereby changing the state of the main contacts 520. When the coil assembly 30 is energized, the electromagnetic force generated will attract the iron core in the core assembly 50, causing it to move along the first direction X, thereby changing the contact state of the main contacts 520, so that the relay 1 can reliably control the on and off of the circuit.

[0086] It can be understood that the bottom wall 220 of the bracket 20 and its connection with the plurality of magnetic conductive side plates 210 together constitute an important part of the internal structure of the relay 1, and the core assembly 50 moves along this part to change the state of the contacts.

[0087] In some embodiments, Figure 3 As shown, the width of the second magnetic conductive side plate 212 is greater than the width of the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 .

[0088] The second magnetic conductive side plate 212 is connected to a first edge 221, and the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 are respectively connected to the second edge 222, and the width of the first edge 221 is greater than the width of the second edge 222. After the gap 230 is formed, the width of the second magnetic conductive side plate 212 is still greater than the width of the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213.

[0089] The wider width of the second magnetic conductive side plate 212 helps to enhance the magnetic flux in this area. In the relay 1, the distribution of the magnetic flux is crucial to achieving fast and reliable switching action. The wider second magnetic conductive side plate 212 can provide a larger magnetic flux path, thereby reducing magnetic resistance and improving electromagnetic efficiency.

[0090] The wider second magnetic conductive side plate 212 can also increase the structural stability of the bracket 20. During the operation of the relay 1, each component will be affected by multiple forces such as electromagnetic force or mechanical force. The wider second magnetic conductive side plate 212 can better disperse these forces and reduce stress concentration, thereby extending the service life of the relay 1.

[0091] It is understandable that the width of the second magnetic conductive side plate 212 is greater than the width of the first magnetic conductive side plate 211 and the third magnetic conductive side plate 213 , which can provide a larger magnetic flux path, thereby reducing magnetic resistance and improving electromagnetic efficiency.

[0092] In some embodiments, Figure 3 As shown, the relay 1 further includes: a partition 240 , which is supported on the top of the bracket 20 and forms an outer contour line corresponding to the notch 230 at the top corner.

[0093] The partition 240 is located at the top of the bracket 20, which can enhance the rigidity of the bracket 20 and provide additional support for the internal components of the relay 1 to reduce the loosening or displacement of the internal components under vibration or impact conditions. In addition, the partition 240 and the top of the bracket 20 can be connected by welding, riveting or other connection methods, which can also increase the stability of the overall structure.

[0094] The partition 240 can be made of non-magnetic material and is used to form an electromagnetic shielding or isolation area inside the relay 1 to reduce electromagnetic interference between different components and improve the electromagnetic compatibility and performance stability of the relay 1. The partition 240 can also divide the space inside the relay 1 more accurately. At the same time, the outer contour line of the partition 240 corresponds to the notch 230 on the bracket 20 to facilitate the installation of internal components of the relay 1 and improve space utilization.

[0095] It is understandable that supporting the partition 240 on the top of the bracket 20 and forming an outer contour line corresponding to the notch 230 at the top corner can enhance the structural stability and electromagnetic shielding performance of the relay 1.

[0096] In some embodiments, Figure 3 As shown, both ends of the tops of the first magnetic conductive side plate 211 , the second magnetic conductive side plate 212 and the third magnetic conductive side plate 213 are provided with protrusions 250 , and the partition plate 240 is riveted to the protrusions 250 .

[0097] The partition 240 and the first magnetic conductive side plate 211, the second magnetic conductive side plate 212 and the third magnetic conductive side plate 213 of the bracket 20 are all formed by a stamping process. Both ends of the top of the first magnetic conductive side plate 211, the second magnetic conductive side plate 212 and the third magnetic conductive side plate 213 are provided with protrusions 250, and riveting with the partition 240 is achieved through six protrusions 250. The protrusions 250 and the partition 240 can provide additional support and fixing points for the internal components of the relay 1. The partition 240 and the protrusions 250 are firmly connected by riveting, which can significantly increase the rigidity and stability of the bracket 20 structure and reduce loosening or deformation caused by vibration or impact during operation.

[0098] Riveting is a simple and reliable connection method, which can quickly and accurately assemble the partition 240 and the plurality of magnetic conductive side plates 210 together during the manufacturing process of the relay 1, thereby improving production efficiency and reducing manufacturing costs.

[0099] It is understandable that firmly connecting the partition 240 and the protrusion 250 by riveting can significantly increase the rigidity and stability of the bracket 20 structure and reduce looseness or deformation caused by vibration or impact during operation.

[0100] In some embodiments, Figure 1 and Figure 4 As shown, the coil assembly 30 includes: a coil control circuit board 310 , and the coil control circuit board 310 is arranged on a side of the bracket 20 where no magnetic conductive side plate 210 is provided.

[0101] The magnetic conductive side plate 210 is mainly used to enhance and conduct the electromagnetic field to improve the electromagnetic efficiency of the relay 1. Placing the coil control circuit board 310 on the side where the magnetic conductive side plate 210 is not provided can reduce the electromagnetic coupling between the circuit board and the magnetic conductive side plate 210, thereby reducing electromagnetic interference and helping to maintain the signal integrity and stability of the circuit board.

[0102] The magnetic side plate 210 is usually made of metal material. It is not only a component of the electromagnetic path, but also a good medium for heat conduction. The coil will generate heat when energized. Placing the coil control circuit board 310 on the side where the magnetic side plate 210 is not provided can reduce the impact of the heat conducted by the magnetic side plate 210 on the coil control circuit board 310, thereby providing it with better heat dissipation conditions and facilitating heat dissipation.

[0103] It is understandable that the coil control circuit board 310 is arranged on the side of the bracket 20 where the magnetic conductive side plate 210 is not provided, which can reduce electromagnetic interference and facilitate heat dissipation.

[0104] In some embodiments, Figure 4 As shown, the coil assembly 30 further includes: a frame 320 and a coil, wherein the coil control circuit board 310 is mounted on the frame 320 , and the coil is wound around the frame 320 .

[0105] The skeleton 320 is the basic supporting structure of the coil assembly 30, and is usually made of insulating materials, such as plastic or ceramic. The main function of the skeleton 320 is to provide a winding platform for the coil and ensure the stability of the shape and position of the coil. The skeleton 320 may be provided with positioning grooves 352, fixing holes or other structures to facilitate the installation of the coil control circuit board 310, and tightly combine the coil control circuit board 310 with the skeleton 320 to form a stable whole.

[0106] The coil control circuit board 310 is a key component for controlling the coil current and voltage, and usually includes electronic components and circuit wiring, and is used to convert external input signals into current or voltage signals for controlling the operation of the coil. The coil control circuit board 310 is installed on the skeleton 320, and can easily achieve electrical connection with the coil. When the coil control circuit board 310 receives a control signal, it can transfer current to the coil through the circuit wiring, thereby generating electromagnetic force.

[0107] The coil is the core component for generating electromagnetic force. It is formed by winding a wire and is usually wound around the skeleton 320 according to a specific number of turns and layers to form a spiral structure. When the coil is energized, the current in the wire will generate a magnetic field. At the same time, the wire is spirally wound, and the generated magnetic field will also show a specific distribution and intensity. The magnetic field can interact with other magnetic components in the relay 1, such as the iron core or the magnetic side plate 210, thereby generating electromagnetic force and driving the relay 1 to perform switching actions.

[0108] The frame 320 also includes a plurality of wire avoidance grooves 322, which are used to avoid the enameled wire at the beginning and end of the coil, thereby reducing the wear of the paint film caused by the winding process.

[0109] It can be understood that the skeleton 320, the coil control circuit board 310 and the coil in the coil assembly 30 work together to constitute the electromagnetic system part of the relay 1. The skeleton 320 provides a stable support platform for the coil and the coil control circuit board 310. The coil control circuit board 310 controls the switching action of the relay 1 by controlling the current and voltage of the coil, and the coil drives the switching action of the relay 1 by generating electromagnetic force.

[0110] In some embodiments, Figure 4As shown, the frame 320 is integrated with a plurality of connection pins 321 , and the plurality of connection pins 321 are electrically connected to the coil control circuit board 310 or the coil respectively.

[0111] The connecting pin 321 is a protruding metal part on the skeleton 320, which usually has good conductive properties. The main function of the connecting pin 321 is to connect different parts inside the coil assembly 30 with an external circuit or power supply. For example, the coil control circuit board 310 and the coil can transmit current and signals through the connecting pin 321, so that the coil assembly 30 can work in a predetermined manner.

[0112] Some connecting pins 321 are directly welded or plugged into the coil control circuit board 310 to form a stable electrical connection. The control signal on the coil control circuit board 310 can be smoothly transmitted to the coil to control its on and off and current size. This connection method can reduce the complexity of external wiring by simplifying the circuit design, and can also improve the signal transmission efficiency and stability.

[0113] Other connecting pins 321 are connected to the wires of the coil so that the current can flow smoothly through the coil to generate the required electromagnetic field. The wires of the coil can be connected to the connecting pins 321 by welding, winding or other methods, depending on the manufacturing process of the coil and the design requirements of the relay 1.

[0114] By integrating multiple connecting pins 321 on the skeleton 320 and directly connecting the multiple connecting pins 321 to the coil control circuit board 310 and the coil respectively, the integration of the coil assembly 30 can be significantly improved, thereby reducing the connection points and potential failure points between components, making the relay 1 structure more compact and reliable.

[0115] It is understandable that the skeleton 320 integrates multiple connection pins 321, which can achieve reliable connection between the internal circuit and the external circuit, thereby improving the integration and reliability of the entire component.

[0116] In some embodiments, Figure 6 and Figure 7 As shown, the core assembly 50 includes: an auxiliary contact control circuit board 530, which is electrically connected to the auxiliary contact 540 of the core assembly 50 and is located on the side of the core assembly 50 away from the coil control circuit board 310; the auxiliary contact control circuit board 530 is electrically connected to the coil control circuit board 310 through a lead-out plate 60, and the lead-out plate 60 is installed on the outer side of the core assembly 50 through a lead-out bracket 70.

[0117] The core assembly 50 includes an auxiliary contact control circuit board 530, which is mainly responsible for controlling the switching action of the relay 1. The auxiliary contact control circuit board 530 is electrically connected to the auxiliary contact 540 of the core assembly 50. The auxiliary contact 540 is mainly used to lead the electrical signal of the on and off state of the low-voltage circuit out of the core assembly 50, and is connected to the core assembly 50 through a brazing process. The auxiliary contact control circuit board 530 is installed on the core assembly 50 through a silicone pad 580. The silicone pad 580 is covered with adhesive on both sides, and the auxiliary contact control circuit board 530 can be glued to the core assembly 50.

[0118] The auxiliary contact control circuit board 530 is located on the side of the core assembly 50 away from the coil control circuit board 310, which can achieve clear functional division and improve the electromagnetic compatibility of the relay 1, and help reduce the impact of external electromagnetic interference on the internal circuit of the relay 1. The coil control circuit board 310 and the auxiliary contact control circuit board 530 can also work independently without interfering with each other, thereby improving the overall performance and reliability of the relay 1.

[0119] In addition, the auxiliary contact control circuit board 530 is electrically connected to the coil control circuit board 310 through the lead-out plate 60. The auxiliary contact control circuit board 530 can transmit the electrical signal led out from the auxiliary contact 540 to the lead-out plate 60 through its internal circuit, thereby realizing safe transmission of low-voltage signals at a lower cost.

[0120] The lead-out piece 60 is usually made of a metal material with good conductivity, which can ensure smooth transmission of current and signals. At the same time, the lead-out piece 60 is installed on the outer side of the core assembly 50 through the lead-out bracket 70, which can optimize the space utilization inside the relay 1 and further enhance the stability and durability of the connection.

[0121] like Figure 7 As shown, the core assembly 50 also includes a moving part, which is composed of an auxiliary moving contact 551, a spring 552, an upper magnetic yoke 553, a moving contact 554, a lower magnetic yoke 555, a compression spring 556 and a shaft assembly 557. The moving part 550 can be closed and disconnected with the main circuit under the action of the magnetic field. At the same time, an integrated arc extinguishing cover 560 and a neodymium magnet 570 are also provided on the outside of the core assembly 50, which are mainly used to help the relay 1 to deflect the arc generated at the main contact 520 to achieve rapid arc extinguishing.

[0122] It is understandable that the layout and connection method of the auxiliary contact control circuit board 530 in the core assembly 50 have an important impact on the performance and reliability of the relay 1. Through reasonable design and optimization, the impact of external electromagnetic interference on the internal circuit of the relay 1 can be reduced and electromagnetic compatibility can be improved.

[0123] In some embodiments, Figure 5 and Figure 6As shown, the frame 320 is provided with a first positioning structure 340 and a second positioning structure 350 , the lead-out bracket 70 is positioned by the first positioning structure 340 , and the lead-out sheet 60 is positioned by the second positioning structure 350 .

[0124] The skeleton 320 serves as the basic supporting structure of the coil assembly 30 and the core assembly 50, and is provided with a first positioning structure 340 and a second positioning structure 350. The first positioning structure 340 and the second positioning structure 350 are used to provide precise positioning references for the lead bracket 70 and the lead piece 60. During the installation process, the lead bracket 70 and the lead piece 60 are accurately placed on the skeleton 320 through the first positioning structure 340 and the second positioning structure 350, respectively, which can reduce installation errors or performance problems caused by position deviation, and also help to enhance the stability of the structure of the relay 1 and improve the vibration and impact resistance of the relay 1 during operation.

[0125] The lead-out bracket 70 is positioned by the first positioning structure 340 , and the lead-out piece 60 is positioned by the second positioning structure 350 , making the installation process more convenient and quick, simplifying the installation process, improving the installation efficiency, and reducing the error rate during the installation process.

[0126] It can be understood that the first positioning structure 340 and the second positioning structure 350 provided on the frame 320 can improve the installation accuracy and structural stability, and can simplify the installation process.

[0127] In some embodiments, Figure 5 As shown, the end surface of the skeleton 320 facing the second shell 40 is provided with a flange 341 and a lug 342 interactively arranged with the flange 341, and the first positioning structure 340 includes the flange 341 and the lug 342; the side of the flange 341 is provided with a boss 351 protruding outward, and the boss 351 is provided with a positioning groove 352, and the second positioning structure 350 includes the boss 351 and the positioning groove 352.

[0128] A first positioning structure 340 is provided on the end face of the skeleton 320 facing the second shell 40. The first positioning structure 340 includes a flange 341 and a lug 342, wherein the flange 341 is a part extending outward from the end face of the skeleton 320. The lug 342 and the flange 341 are alternately arranged to enhance the stability and reliability of the first positioning structure 340. Through the cooperation between the lug 342 and the flange 341, accurate positioning and fixation can be provided for the lead-out bracket 70.

[0129] A second positioning structure 350 is also provided on the end face of the skeleton 320 facing the second shell 40. The second positioning structure 350 includes a boss 351 and a positioning groove 352, wherein the boss 351 is an outward protruding part arranged on the side of the convex edge 341, which can increase the structural strength of the skeleton 320 and provide necessary support for the positioning of the lead-out piece 60.

[0130] The positioning groove 352 is a groove or hole arranged on the boss 351, and its shape and position match the positioning structure on the lead-out piece 60. When the lead-out piece 60 is installed on the boss 351, the positioning structure on the lead-out piece 60 will be embedded in the positioning groove 352, thereby achieving precise positioning and fixation, which helps to reduce the displacement or rotation of the lead-out piece 60 during the installation process, and makes its electrical connection with the coil control circuit board 310 or other components stable and reliable.

[0131] It can be understood that the structures such as the flange 341, the lug 342, the boss 351 and the positioning groove 352 on the skeleton 320 cooperate with each other to form the first positioning structure 340 and the second positioning structure 350, which can enhance the overall structural strength of the skeleton 320, and provide stable support and fixation for the lead-out bracket 70 and the lead-out plate 60, which helps to reduce installation errors and improve installation accuracy.

[0132] The embodiment of the present application further provides an electrical device, comprising: a relay 1, wherein the relay 1 connects or disconnects a circuit by controlling the opening and closing of its contacts, thereby achieving control over the electrical device.

[0133] In the technical solution of the present application, the electrical device is a broad concept, which may be, but is not limited to, mobile phones, tablets, laptop computers, electric vehicles, and ships, etc., ranging from simple portable electronic devices to complex household appliances and industrial equipment, etc.

[0134] An electrical device is a device or system that relies on electric energy to work. Relay 1, as an electrical switching device of the electrical device, can be connected to other parts of the electrical device through an output port to control the opening and closing of the circuit in the electrical device. In addition to relay 1, the electrical device can also include other components or systems for realizing its specific functions, such as batteries, motors, sensors, etc., which are driven and controlled by electric energy to realize various functions of the electrical device.

[0135] It can be understood that the circuit can be connected or disconnected by controlling the opening and closing of the contacts of the relay 1 to control the electrical device and realize automatic control of the circuit.

[0136] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0137] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0138] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0139] In the description of the present application, “plurality” means two or more.

[0140] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0141] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0142] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0143] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A relay, characterized in that: include: A first shell, the top corner of the side surface is concave to form a first avoidance groove, and a mounting structure corresponding to the first avoidance groove is provided at the top corner of the bottom wall of the first shell; A bracket is installed in the first shell, the bracket includes a first magnetic conductive side plate, a second magnetic conductive side plate and a third magnetic conductive side plate, and a gap corresponding to the first avoidance groove is formed between two adjacent magnetic conductive side plates and between the magnetic conductive side plate and the bottom wall of the bracket; A coil assembly is mounted on the bracket; A second shell connected to the first shell; The core component is installed in the second shell, and the sleeve of the core component extends into the coil component.

2. The relay according to claim 1, characterized in that: The bottom wall of the bracket has a first edge along a first direction and a second edge along a second direction, and the core assembly includes a plurality of main contacts distributed along the first direction; The first magnetic conductive side plate and the third magnetic conductive side plate are arranged opposite to each other along the first direction, and each is connected to one of the second edges, and the second magnetic conductive side plate is connected to one of the first edges; wherein, The lengths of the first magnetic conductive side plate and the third magnetic conductive side plate along the second direction are both shorter than the second edge, and the length of the second magnetic conductive side plate along the first direction is shorter than the first edge to form the gap.

3. The relay according to claim 2, characterized in that: The width of the second magnetic conductive side plate is greater than the widths of the first magnetic conductive side plate and the third magnetic conductive side plate.

4. The relay according to claim 2, characterized in that: Also includes: A partition is supported on the top of the bracket and forms an outer contour line corresponding to the notch at a top corner.

5. The relay according to claim 4, characterized in that: Both ends of the tops of the first magnetic conductive side plate, the second magnetic conductive side plate and the third magnetic conductive side plate are provided with protrusions, and the partition plate is riveted to the protrusions.

6. The relay according to any one of claims 1 to 5, characterized in that: The coil assembly comprises: The coil control circuit board is arranged on a side of the bracket where no magnetic conductive side plate is provided.

7. The relay according to claim 6, characterized in that: The coil assembly further comprises: A frame, wherein the coil control circuit board is mounted on the frame; The coil is wound around the frame.

8. The relay according to claim 7, characterized in that: The frame is integrated with a plurality of connection pins, and the plurality of connection pins are electrically connected to the coil control circuit board or the coil respectively.

9. The relay according to claim 7, characterized in that: The core assembly includes: an auxiliary contact control circuit board, which is electrically connected to the auxiliary contacts of the core assembly and is located on a side of the core assembly away from the coil control circuit board; the auxiliary contact control circuit board is electrically connected to the coil control circuit board through a lead-out plate, and the lead-out plate is installed on the outer side of the core assembly through a lead-out bracket.

10. The relay according to claim 9, characterized in that: The frame is provided with a first positioning structure and a second positioning structure, the lead-out bracket is positioned by the first positioning structure, and the lead-out piece is positioned by the second positioning structure.

11. The relay according to claim 10, characterized in that: The end surface of the frame facing the second shell is provided with a convex edge and a lug arranged alternately with the convex edge, and the first positioning structure includes the convex edge and the lug; A boss protruding outward is provided on the side surface of the convex edge, the boss is provided with a positioning groove, and the second positioning structure includes the boss and the positioning groove.

12. An electrical device, characterized in that: include: A relay as claimed in any one of claims 1 to 11.

Images