Modular relay

Abstract

The application relates to a combined relay, which comprises a plurality of relay bodies, a circuit board and a plug-in terminal assembly. The plurality of relay bodies comprises outgoing pieces. The outgoing pieces of the plurality of relay bodies are connected to the circuit board. One side of the plug-in terminal assembly is connected to the circuit board, and the other side is used for being connected with a connector. The outgoing pieces and the plug-in terminal assembly are electrically connected through the circuit board. The combined relay can avoid disordered wiring of the outgoing pieces, reduce the space occupied by the outgoing pieces, and thus can save the space of the combined relay.

Description

Technical Field

[0001] This application relates to the field of relay technology, and in particular to combination relays. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current, thus playing roles in automatic adjustment, safety protection, and circuit switching. It is used in household appliances, automobiles, industrial control, power systems, and communication devices.

[0003] To improve the circuit control and voltage protection performance of relays, related technologies employ a combination relay composed of multiple relay bodies. When a control signal in the circuit energizes the combination relay, the multiple relay bodies will activate, thereby realizing the relay function. By controlling the circuit through multiple relay bodies, the failure rate can be reduced and the service life of electrical equipment can be extended.

[0004] However, when multiple relay bodies are connected to power supply equipment, the messy wiring of the lead-out structure will occupy a large space of the combined relay. Utility Model Content

[0005] Therefore, it is necessary to provide a combined relay to solve the problem that when multiple relay bodies are connected to power supply equipment, the resulting messy wiring structure occupies a large amount of space in the combined relay.

[0006] A combined relay, comprising:

[0007] Multiple relay bodies, including leads;

[0008] The circuit board has leads from multiple relay bodies connected to it.

[0009] The plug terminal assembly has one side connected to the circuit board and the other side used to connect to the connector. The lead-out and the plug terminal assembly are electrically connected through the circuit board.

[0010] In some embodiments, the combined relay includes a housing assembly that surrounds a receiving cavity, within which multiple relay bodies and circuit boards are disposed.

[0011] In some embodiments, the housing assembly includes:

[0012] First shell;

[0013] The second housing, together with the first housing, forms a receiving cavity. The first housing includes a first housing wall, and the second housing includes a second housing wall. The first housing wall and the second housing wall are arranged opposite each other along a first direction. A plurality of relay bodies are disposed on the side of the first housing wall facing the second housing wall, and a circuit board is disposed on the side of the plurality of relay bodies facing the second housing wall.

[0014] In some embodiments, the second housing further includes a third housing wall, which is located between the first housing wall and the second housing wall, and the third housing wall and the second housing wall are disposed opposite to each other along a first direction. The third housing wall divides the receiving cavity into a first sub-receiving cavity and a second sub-receiving cavity, and the first sub-receiving cavity is located on the side of the third housing wall facing the first housing wall.

[0015] The relay body is located in the first sub-receiving cavity, and the circuit board is located in the second sub-receiving cavity.

[0016] In some embodiments, the second housing includes a first sub-housing and a second sub-housing that are detachably connected. The first sub-housing is disposed between the first housing and the second sub-housing, a second housing wall is disposed in the second sub-housing, and a third housing wall is disposed in the first sub-housing. A portion of the first sub-housing and the first housing together enclose a first sub-receiving cavity, and a portion of the first sub-housing and the second housing together enclose a second sub-receiving cavity.

[0017] In some embodiments, the housing assembly further includes:

[0018] A protective cover is disposed outside the side wall of at least one of the first housing and the second housing;

[0019] At least one of the first housing and the second housing has a through hole on its side wall, and the plug-in terminal assembly passes through the through hole on the side away from the circuit board and is located inside the protective cover.

[0020] In some embodiments, the protective cover is a connector socket for mating with a connector; and / or,

[0021] The number of circuit boards is one; and / or,

[0022] The number of protective shields is one; and / or,

[0023] At least one of the first and second housings is integrally formed with the protective shield; and / or,

[0024] There is at least one plug terminal assembly, and all plug terminal assemblies are used to connect to the same connector.

[0025] In some embodiments, a plurality of relay bodies are spaced apart along a second direction; or...

[0026] A portion of multiple relay bodies are spaced apart along a second direction, and a portion of multiple relay bodies are spaced apart along a third direction.

[0027] The second direction intersects with the third direction; and both the second direction and the third direction intersect with the first direction.

[0028] In some embodiments, a solder connection is made between the lead-out and the circuit board; and / or

[0029] Soldering connection between the plug terminal assembly and the circuit board.

[0030] In some embodiments, a plurality of relay bodies are spaced apart along a second direction, and two adjacent relay bodies along the second direction are defined as a first relay body and a second relay body, respectively.

[0031] Along the second direction, the projection of the lead in the first relay onto the plane containing the side wall of the first housing does not overlap with the projection of the lead in the second relay onto the plane containing the side wall of the first housing at least partially.

[0032] The second direction intersects with the first direction.

[0033] In some embodiments, the relay body includes a coil, the lead is a coil lead, and the coil is electrically connected to the coil lead.

[0034] In some embodiments, the relay body further includes an auxiliary contact group, and the lead-out is an auxiliary lead-out, with one end of the auxiliary lead-out connected to the auxiliary contact group and the other end connected to the circuit board.

[0035] In some embodiments, the auxiliary lead-out includes a first sub-auxiliary lead-out and a second sub-auxiliary lead-out that are spaced apart;

[0036] The auxiliary contact group includes an auxiliary moving spring and two auxiliary stationary contacts. One of the auxiliary stationary contacts is electrically connected to the circuit board via a first sub-auxiliary lead-out, and the other auxiliary stationary contact is electrically connected to the circuit board via a second sub-auxiliary lead-out.

[0037] In some embodiments, the relay body has a main stationary contact on the side opposite to the circuit board.

[0038] The aforementioned combined relay includes multiple relay bodies, a circuit board, and a terminal block assembly. Each relay body includes a lead-out component; the leads-out components of each relay body are connected to the circuit board; one side of the terminal block assembly is connected to the circuit board, and the other side is used for connection to a connector. The leads-out components and the terminal block assembly are electrically connected through the circuit board.

[0039] The combined relay of this application has multiple relay body leads connected to a circuit board. One side of the plug-in terminal assembly is connected to the circuit board, and the other side is used to connect to a connector. This allows multiple relay body leads to be connected through the circuit board, thereby avoiding messy lead routing and reducing the space occupied by the leads, thus saving space in the combined relay.

[0040] Furthermore, since the third shell wall divides the receiving cavity into a first sub-receiving cavity and a second sub-receiving cavity, the relay body is located in the first sub-receiving cavity and the circuit board is located in the second sub-receiving cavity. Multiple relay bodies can be supported and fixed by the third shell wall of the second shell, so that the weight of multiple relay bodies can be borne by the third shell wall of the second shell, thereby preventing the weight of multiple relay bodies from pressing on the circuit board and thus preventing multiple relay bodies from damaging the circuit board.

[0041] Furthermore, since the relay body also includes an auxiliary contact group; the lead-out is an auxiliary lead-out, with one end connected to the auxiliary contact group and the other end connected to the circuit board, multiple auxiliary leads of the relay body can be connected through the circuit board, which can further avoid the messy wiring of the auxiliary leads and reduce the impact on the wiring layout. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a combined relay in one embodiment of this application.

[0043] Figure 2 for Figure 1 Top view of a combined relay.

[0044] Figure 3 for Figure 2 A cross-sectional view of a medium-sized combined relay along the AA direction.

[0045] Figure 4 This is an exploded view of a combined relay in one embodiment of this application.

[0046] Figure 5 for Figure 2 A cross-sectional view of a medium-sized combined relay along the BB direction.

[0047] Figure 6 This is a schematic diagram of the circuit board and housing assembly in one embodiment of this application when they are not installed.

[0048] Figure 7 This is a schematic diagram of the combined relay without the housing assembly in one embodiment of this application.

[0049] Figure 8 This is a schematic diagram of another structure of the combined relay with the housing assembly removed, according to one embodiment of this application.

[0050] Figure 9 This is a schematic diagram of the structure of a combined relay in one embodiment of this application.

[0051] Figure 10 for Figure 8 A bottom view of a modular relay without the housing assembly.

[0052] Figure 11 This is a schematic diagram of the structure of a plug-in terminal assembly in one embodiment of this application.

[0053] Figure 12 This is a schematic diagram of the structure of one of the relay bodies disposed on one side of the circuit board in one embodiment of this application.

[0054] Figure 13 This is a schematic diagram of the connection between the auxiliary lead-out member and the auxiliary contact group in one embodiment of this application.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Combination relay;

[0057] 11. Housing assembly; 12. Relay body; 13. Circuit board; 14. Plug-in terminal assembly;

[0058] 111. First housing; 112. Second housing; 113. Protective cover;

[0059] 11a, receiving cavity; 11a1, first sub-receiving cavity; 11a2, second sub-receiving cavity;

[0060] 1111, First shell wall; 1121, Second shell wall; 1122, Third shell wall;

[0061] 121. Lead-out component; 122. Coil; 123. Auxiliary contact group; 124. Main stationary contact; 125. Thermistor;

[0062] 1211. Coil lead-out component; 1212. Auxiliary lead-out component; 1213. First sub-auxiliary lead-out component; 1214. Second sub-auxiliary lead-out component;

[0063] 1231, Auxiliary moving spring; 1232, Auxiliary stationary contact. Detailed Implementation

[0064] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0065] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0066] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] See Figures 1-6 As shown. One embodiment of this application provides a combined relay 1, including multiple relay bodies 12, a circuit board 13, and a plug-in terminal assembly 14. See also... Figure 7 , Figure 8 and Figure 9 As shown, the relay body 12 includes a lead-out 121. Multiple leads-out 121 of the relay bodies 12 are connected to the circuit board 13. (See reference...) Figure 10 and Figure 11 As shown, one side of the plug terminal assembly 14 is connected to the circuit board 13, and the other side is used to connect to the connector. The lead-out 121 and the plug terminal assembly 14 are electrically connected through the circuit board 13.

[0070] It should be noted that the combined relay 1 of this application is an electrical switching device capable of multi-channel control, composed of multiple relay bodies 12, and can simultaneously control multiple circuits. The relay body 12 serves as the main working component of the combined relay 1, and consists of a drive mechanism, an actuation mechanism, and a contact mechanism. The drive mechanism activates the contacts to close or open, thereby controlling the circuit's on / off state. It is important to note that individual relay bodies 12 do not have a housing; multiple relay bodies 12 share a single housing assembly 11, thus forming the combined relay 1.

[0071] A twin relay is a device consisting of two independent relay bodies 12, which perform their functions through control signal activation. Each relay body 12 has its own independent control circuit and contact mechanism. In the circuit, when the control signal is energized, both relay bodies 12 will activate, realizing their functions. Based on the above description, the twin relay also belongs to the combined relay 1 of this application. Here, the specific number of relay bodies 12 in the combined relay 1 will not be elaborated.

[0072] Circuit board 13, also known as printed circuit board (PCB), is the provider of electrical connections for electronic components. Circuit board 13 primarily provides electrical connection paths between electronic components and offers physical support for these components, acting as the "skeleton" of the electronic device, organizing the various components in an orderly manner to form a complete circuit system. The connector assembly 14 is used to connect circuit board 13 and connectors to achieve circuit connections, thereby enabling functions such as signal transmission, power supply, and control signals.

[0073] Specifically, this application uses multiple relay bodies 12, which work together to control electrical equipment. Each relay body 12 includes a main stationary contact 124 connected to the electrical equipment. Leads 121 are connected to a circuit board 13, which is then connected to a power supply via a terminal assembly 14. It should be noted that the power supply connected to the terminal assembly 14 operates at low voltage and low current relative to the circuit in the electrical equipment, while the current in the electrical equipment is high voltage and high current. This allows the combined relay 1 to control high voltage and high current with low voltage and low current.

[0074] Since this application has multiple relay bodies 12, directly connecting the leads 121 in multiple relay bodies 12 to the plug-in terminal assembly 14 would require connecting the leads 121 to the plug-in terminal assembly 14 with wires, or extending the leads 121, resulting in messy wiring of the leads 121. Furthermore, since this application connects multiple leads 121 via a circuit board 13, only the circuit board 13 needs to be connected to the plug-in terminal assembly 14, thus avoiding messy wiring of the leads 121 and reducing the space occupied by the leads 121, thereby saving space in the combined relay 1.

[0075] It is understandable that since this application can realize the connection between multiple leads 121 and a plug-in terminal assembly 14 through the circuit board 13, it can avoid the complexity and confusion of the wiring connection during the connection of multiple leads 121 and plug-in terminal assembly 14, thereby further optimizing the wiring connection and layout of the combined relay 1, and at the same time facilitating the installation and maintenance of the installers.

[0076] In some embodiments, the combined relay includes a housing assembly 11, which surrounds a receiving cavity 11a, and a plurality of relay bodies 12 and circuit boards 13 are disposed within the receiving cavity 11a.

[0077] The housing assembly 11 serves as the frame structure of the combined relay 1. On one hand, it supports and fixes the multiple relay bodies 12 and circuit boards 13 within the combined relay 1, thereby ensuring the normal operation of the relay bodies 12 and circuit boards 13. On the other hand, it protects the multiple relay bodies 12 and circuit boards 13 from external damage, further ensuring the normal operation of the combined relay 1.

[0078] In some embodiments, see Figure 4 , Figure 7 and Figure 8 As shown, the housing assembly 11 includes a first housing 111 and a second housing 112. The second housing 112 and the first housing 111 enclose a receiving cavity 11a. The first housing 111 includes a first housing wall 1111, and the second housing 112 includes a second housing wall 1121. The first housing wall 1111 and the second housing wall 1121 are arranged opposite to each other along a first direction. A plurality of relay bodies 12 are disposed on the side of the first housing wall 1111 facing the second housing wall 1121, and a circuit board 13 is disposed on the side of the plurality of relay bodies 12 facing the second housing wall 1121.

[0079] It should be noted that the first direction is Figure 7 The X direction in the equation.

[0080] Thus, the first housing 111 and the second housing 112 can protect the multiple relay bodies 12, circuit boards 13, and terminal assembly 14 from damage by the external environment. Since the multiple relay bodies 12 are located on the side of the first housing wall 1111 facing the second housing wall 1121, and the circuit board 13 is located on the side of the multiple relay bodies 12 facing the second housing wall 1121, on the one hand, the position of the circuit board 13 can be prevented from affecting the normal operation of the multiple relay bodies 12 during the connection of the lead-out member 121, thereby ensuring the normal operation of different areas of the relay bodies 12. On the other hand, since the circuit board 13 is located on the side of the multiple relay bodies 12 facing the second housing wall 1121, the second housing wall 1121 can support and fix the circuit board 13, thereby improving the stability of the circuit board 13 and, consequently, the stability of the combined relay 1.

[0081] In some embodiments, the second housing 112 further includes a third housing wall 1122, which is located between the first housing wall 1111 and the second housing wall 1121, and the third housing wall 1122 and the second housing wall 1121 are disposed opposite to each other along a first direction; the third housing wall 1122 divides the receiving cavity 11a into a first sub-receiving cavity 11a1 and a second sub-receiving cavity 11a2, the first sub-receiving cavity 11a1 is disposed on the side of the third housing wall 1122 facing the first housing wall 1111; the relay body 12 is disposed in the first sub-receiving cavity 11a1, and the circuit board 13 is disposed in the second sub-receiving cavity 11a2.

[0082] In this way, multiple relay bodies 12 can be supported and fixed by the third shell wall 1122 of the second shell 112. The third shell wall 1122 of the second shell 112 can bear the weight of multiple relay bodies 12, so that the weight of multiple relay bodies 12 does not press on the circuit board 13, thereby preventing multiple relay bodies 12 from damaging the circuit board 13, thereby improving the service life of the circuit board 13 and the reliability during operation.

[0083] In some embodiments, the second housing 112 includes a first sub-housing and a second sub-housing that are detachably connected. The first sub-housing is disposed between the first housing 111 and the second sub-housing. A second housing wall 1121 is disposed in the second sub-housing. A third housing wall 1122 is disposed in the first sub-housing. A portion of the first sub-housing and the first housing 111 together enclose a first sub-receiving cavity 11a1, and a portion of the first sub-housing and the second housing together enclose a second sub-receiving cavity 11a2.

[0084] Thus, since the first sub-shell and the second sub-shell are detachably connected, it is convenient to connect and separate the first sub-shell and the second sub-shell, thereby facilitating the installation and disassembly of the first sub-shell and the second sub-shell, and further facilitating the formation of the first sub-accommodating cavity 11a1 and the second sub-accommodating cavity 11a2, making it convenient for operators to install and disassemble.

[0085] In some embodiments, see Figure 4 As shown, the housing assembly 11 also includes a protective cover 113. The protective cover 113 is disposed outside the side wall of at least one of the first housing 111 and the second housing 112; the side wall of at least one of the first housing 111 and the second housing 112 is provided with a through hole, and the end of the plug-in terminal assembly 14 away from the circuit board 13 passes through the through hole and is disposed inside the protective cover 113.

[0086] Thus, since the end of the plug-in terminal assembly 14 away from the circuit board 13 passes through the through hole, the plug-in terminal assembly 14 inside the housing assembly 11 can be connected to the connector outside the housing assembly 11. Furthermore, since the protective cover 113 is located outside the side wall of the second housing 112, and the end of the plug-in terminal assembly 14 away from the circuit board 13 is located inside the protective cover 113, the protective cover 113 can protect the plug-in terminal assembly 14, thereby improving its service life.

[0087] It should be noted that at least one of the first housing 111 and the second housing 112 is integrally formed with the plug-in terminal assembly 14. This integral formation can be achieved through methods such as injection molding, or other methods. Alternatively, the connection between the first housing 111, the second housing 112, and the plug-in terminal assembly 14 can be detachably connected. Therefore, the connection method between the first housing 111, the second housing 112, and the plug-in terminal assembly 14 will not be limited or elaborated upon here.

[0088] In some embodiments, the protective cover 113 is a connector socket for mating with a connector.

[0089] In this way, the connector socket can be used with the connector, which facilitates the connection between the terminal assembly 14 and the connector and improves the accuracy of the connection between the terminal assembly 14 and the connector.

[0090] In some embodiments, the number of circuit boards 13 is one.

[0091] In this way, the number of circuit boards 13 can be reduced, thereby reducing the space occupied by circuit boards 13 and saving space for the combined relay 1.

[0092] In some embodiments, the number of protective covers 113 is one.

[0093] In this way, the number of protective covers 113 can be reduced, thereby reducing the space occupied by the protective covers 113 and saving space for the combined relay 1.

[0094] In some embodiments, at least one of the first housing 111 and the second housing 112 is integrally formed with the protective cover 113.

[0095] In this way, on the one hand, the overall strength of at least one of the first housing 111 and the second housing 112 and the protective cover 113 can be improved, thereby improving the overall strength and stability of the combined relay 1; on the other hand, the production cycle of at least one of the first housing 111 and the second housing 112 and the protective cover 113 can be shortened, thereby reducing the manufacturing cost of at least one of the first housing 111 and the second housing 112 and the protective cover 113, and ultimately reducing the manufacturing cost of the combined relay 1.

[0096] In some embodiments, there is at least one plug terminal assembly 14, and all plug terminal assemblies 14 are used to connect to the same connector.

[0097] Thus, since there are multiple relay bodies 12 in this application, if the leads 121 in the multiple relay bodies 12 are directly connected to the plug-in terminal assembly 14, it is necessary to connect the leads 121 and the plug-in terminal assembly 14 with wires, or to extend the leads 121, resulting in messy wiring of the leads 121. Furthermore, since this application connects multiple leads 121 through the circuit board 13, it is only necessary to connect the circuit board 13 to the plug-in terminal assembly 14, and then only one plug-in terminal assembly 14 needs to be connected to one connector to realize the control of multiple relay bodies 12 by the power supply equipment. On the one hand, the number of connectors can be reduced, thereby reducing the manufacturing cost of the combined relay 1; on the other hand, the reduction in the number of connectors can reduce the space occupied by the connectors, thereby saving space in the combined relay 1.

[0098] In some embodiments, see Figure 7 As shown, multiple relay bodies 12 are spaced apart along a second direction; or, a portion of the multiple relay bodies 12 are spaced apart along the second direction, and a portion of the multiple relay bodies 12 are spaced apart along a third direction; wherein the second direction intersects the third direction; and both the second direction and the third direction intersect the first direction.

[0099] It should be noted that the second direction is Figure 7 and Figure 9 In the Y direction, the third direction is Figure 7 and Figure 9 The Z direction in the equation.

[0100] It should be added that, Figure 7 and Figure 9 The Y and Z directions in the diagram are only schematic and do not represent the directions shown in the diagram.

[0101] In this way, designers can rationally plan and arrange the positions of multiple relay bodies 12 according to the spatial location within the combined relay 1 and the actual usage requirements of the combined relay 1, thereby further optimizing the space of the combined relay 1 and improving its performance.

[0102] In some embodiments, the lead-out 121 and the circuit board 13 are soldered together.

[0103] Thus, on the one hand, since the lead-out 121 and the circuit board 13 can be seamlessly connected after welding, the strength of the connection between the lead-out 121 and the circuit board 13 can be improved; on the other hand, since welding does not require drilling, it can improve production efficiency, make full use of the materials of the lead-out 121 and the circuit board 13, and will not damage the lead-out 121 and the circuit board 13.

[0104] In some embodiments, the plug-in terminal assembly 14 and the circuit board 13 are soldered together.

[0105] Thus, on the one hand, since the plug terminal assembly 14 and the circuit board 13 can be seamlessly connected after welding, the strength of the connection between the plug terminal assembly 14 and the circuit board 13 can be improved; on the other hand, since the welding connection does not require drilling, it can improve production efficiency, make full use of the materials of the plug terminal assembly 14 and the circuit board 13, and will not damage the plug terminal assembly 14 and the circuit board 13.

[0106] In some embodiments, see Figure 9 As shown, multiple relay bodies 12 are spaced apart along a second direction, and two adjacent relay bodies 12 along the second direction are defined as the first relay body and the second relay body, respectively; along the second direction, the projection of the lead-out member 121 in the first relay body onto the plane of the side wall of the first housing 111 and the projection of the lead-out member 121 in the second relay body onto the plane of the side wall of the first housing 111 do not overlap at least partially; wherein, the second direction intersects with the first direction.

[0107] It should be noted that the first direction is Figure 7 The X direction in the middle, the second direction is Figure 7 and Figure 9 in the Y direction.

[0108] In this way, during the processing and production of the lead-out component 121, it is possible to avoid the problem that too many lead-out components 121 are set in some areas along the second direction, which would lead to an excessive number of lead-out components 121 in that area and increase the manufacturing difficulty of that area. This facilitates the processing and manufacturing of lead-out components 121 in different areas, and in turn, facilitates the processing and manufacturing of the combined relay 1.

[0109] In some embodiments, the relay body 12 includes a coil 122, and the lead-out member 121 is a coil lead-out member 1211, with the coil 122 electrically connected to the coil lead-out member 1211.

[0110] It should be noted that the relay body 12 also includes structures such as a moving iron core, a stationary iron core, and a push rod. The coil 122 in the relay body 12 is the key component for generating a magnetic field. When current passes through it, a magnetic field is generated around it. When the magnetic field generated by the coil 122 acts on the moving iron core, the moving iron core is magnetized and becomes a temporary magnet. At this time, an interaction force is generated between the moving iron core and the magnetic field generated by the coil 122, which attracts the moving iron core to move toward the stationary iron core and drives the push rod to move, controlling the switching state of the contacts.

[0111] Thus, since the connection between multiple coil leads 1211 and plug-in terminal assembly 14 can be realized through circuit board 13, the complexity and confusion of the wiring connection during the connection of multiple coil leads 1211 and plug-in terminal assembly 14 can be avoided, thereby further optimizing the wiring connection and layout of the combined relay 1, and at the same time facilitating the installation and maintenance by installers.

[0112] In some embodiments, see Figure 12 and Figure 13 As shown, the relay body 12 also includes an auxiliary contact group 123; the lead-out member 121 is an auxiliary lead-out member 1212, one end of the auxiliary lead-out member 1212 is connected to the auxiliary contact group 123, and the other end is connected to the circuit board 13.

[0113] Thus, since the connection between multiple auxiliary leads 1212 and the plug-in terminal assembly 14 can be realized through the circuit board 13, the complexity and confusion of the wiring connection during the connection of multiple auxiliary leads 1212 and the plug-in terminal assembly 14 can be avoided, thereby further optimizing the wiring connection and layout of the combined relay 1, and at the same time facilitating the installation and maintenance by the installers.

[0114] It should be noted that the relay body 12 in this application also includes a moving iron core, a stationary iron core, a push rod, and an active contact. The moving iron core, stationary iron core, push rod, and active contact are not labeled in the accompanying drawings of this application. When the coil 122 is energized, the moving iron core moves relative to the stationary iron core, driving the push rod to move.

[0115] On one hand, the push rod moves to make the active contact contact with the main stationary contact 124. At this time, the active contact, the main stationary contact 124 and the circuit of the high-voltage electrical equipment are connected. Since the current in the coil 122 is a low-voltage current, the high-voltage current can be controlled by the low-voltage current.

[0116] On the other hand, the movement of the push rod causes the auxiliary contact group 123 to connect or disconnect. Since the auxiliary contact group 123 is connected to the circuit of the electronic components, and the current connected to the electronic components by the auxiliary contact group 123 is a different low-voltage current from that of the coil 122, the on / off state of the other low-voltage current can be controlled by the low-voltage current in the coil 122. At the same time, when the active contact is connected to the main stationary contact 124, the auxiliary contact group 123 closes or opens; conversely, when the active contact is disconnected from the main stationary contact 124, the auxiliary contact group 123 opens or closes accordingly. Thus, the on / off state of the active contact and the main stationary contact 124 can be monitored through the auxiliary contact group 123.

[0117] Optionally, the auxiliary lead-out 1212 includes a first sub-auxiliary lead-out 1213 and a second sub-auxiliary lead-out 1214 spaced apart; the auxiliary contact group 123 includes an auxiliary moving spring 1231 and two auxiliary stationary contacts 1232, one of which is electrically connected to the circuit board 13 via the first sub-auxiliary lead-out 1213, and the other is electrically connected to the circuit board 13 via the second sub-auxiliary lead-out 1214.

[0118] Optionally, the auxiliary contact group 123 includes an auxiliary moving spring 1231 and an auxiliary stationary contact 1232. The auxiliary moving spring 1231 and the circuit board 13 are electrically connected through a first sub-auxiliary lead-out 1213, and the auxiliary stationary contact 1232 and the circuit board 13 are electrically connected through a second sub-auxiliary lead-out 1214.

[0119] Thus, through the relay body 12, the low-voltage current in the coil 122 can control the on / off of the high-voltage current on one side of the main stationary contact 124, and the low-voltage current in the coil 122 can also control the on / off of the low-voltage current on one side of the auxiliary contact group 123. This allows control of the operation of high-voltage electrical equipment or low-voltage electronic components, thereby improving the performance of the combined relay 1 and making it more convenient for operators to use.

[0120] In some embodiments, the relay body 12 has a main stationary contact 124 on the side opposite to the circuit board 13.

[0121] Thus, the circuit board 13 and the main stationary contact 124 are located on both sides of the relay body 12 along the first direction, thereby achieving spatial isolation between high voltage and low voltage, and improving the safety of the relay body 12 in use.

[0122] Optionally, the relay body 12 also includes a thermistor 125, which is thermally connected to the main stationary contact 124 for monitoring the temperature of the main stationary contact 124. Lead-out 121 is a lead-out of the thermistor 125, with one end connected to the thermistor 125 and the other end connected to the circuit board 13.

[0123] Thus, since the connection between multiple thermistor 125 leads and plug-in terminal assembly 14 can be realized through circuit board 13, the complexity and confusion of the wiring connection during the connection of multiple thermistor 125 leads and plug-in terminal assembly 14 can be avoided, thereby further optimizing the wiring connection and layout of the combined relay 1, and at the same time facilitating the installation and maintenance of the installers.

[0124] It should be noted that the plug-in terminal assembly 14 in this application includes a plurality of plug-in terminals, one of which is used to connect to the circuit board 13 to connect to a plurality of coil leads 1211; one of which is used to connect to the circuit board 13 to connect to a plurality of auxiliary leads 1212; and one of which is used to connect to the circuit board 13 to connect to a plurality of thermistors 125.

[0125] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A combination relay characterized by, include: Multiple relay bodies, including leads; The circuit board, wherein the leads of the plurality of relay bodies are all connected to the circuit board; A plug-in terminal assembly, one side of which is connected to the circuit board and the other side is used to connect to a connector, wherein the lead-out member and the plug-in terminal assembly are electrically connected through the circuit board.

2. The combination relay of claim 1, wherein The combined relay includes a housing assembly that encloses a receiving cavity, in which the plurality of relay bodies and the circuit board are all disposed.

3. The combination relay of claim 2, wherein The housing assembly includes: First shell; The second housing, together with the first housing, forms the receiving cavity. The first housing includes a first housing wall, and the second housing includes a second housing wall. The first housing wall and the second housing wall are disposed opposite each other along a first direction. The plurality of relay bodies are disposed on the side of the first housing wall facing the second housing wall, and the circuit board is disposed on the side of the plurality of relay bodies facing the second housing wall.

4. The combination relay of claim 3, wherein The second housing further includes a third housing wall, which is located between the first housing wall and the second housing wall, and the third housing wall and the second housing wall are disposed opposite to each other along the first direction. The third housing wall divides the receiving cavity into a first sub-receiving cavity and a second sub-receiving cavity, and the first sub-receiving cavity is located on the side of the third housing wall facing the first housing wall. The relay body is located in the first sub-receiving cavity, and the circuit board is located in the second sub-receiving cavity.

5. The combination relay of claim 4, wherein The second housing includes a first sub-housing and a second sub-housing that are detachably connected. The first sub-housing is disposed between the first housing and the second sub-housing. The second housing wall is disposed in the second sub-housing. The third housing wall is disposed in the first sub-housing. A portion of the first sub-housing and the first housing together enclose the first sub-receiving cavity, and a portion of the first sub-housing and the second housing together enclose the second sub-receiving cavity.

6. The combination relay of claim 3, wherein The housing assembly also includes: A protective cover is disposed on the outside of the side wall of at least one of the first housing and the second housing; At least one of the first housing and the second housing has a through hole on its side wall, and the plug terminal assembly passes through the through hole on the side away from the circuit board and is disposed inside the protective cover.

7. The combination relay of claim 6 wherein, The protective cover is a connector socket, which is used to mate with the connector; and / or The number of the circuit boards is one; and / or, The number of the protective shields is one; and / or, At least one of the first housing and the second housing is integrally formed with the protective cover; and / or, The plug terminal assemblies are all used to connect to the same connector.

8. The combination relay according to any one of claims 3 to 7, characterized in that The plurality of relay bodies are spaced apart along a second direction; or... A portion of the plurality of relay bodies are spaced apart along a second direction, and a portion of the plurality of relay bodies are spaced apart along a third direction; Wherein, the second direction intersects with the third direction; and both the second direction and the third direction intersect with the first direction.

9. The combination relay according to any one of claims 1 to 7, characterized in that The lead-out component and the circuit board are soldered together; and / or The plug-in terminal assembly and the circuit board are soldered together.

10. The combination relay according to any one of claims 3-7, characterized in that The plurality of relay bodies are spaced apart along the second direction, and two adjacent relay bodies along the second direction are defined as the first relay body and the second relay body, respectively. Along the second direction, the projection of the lead in the first relay onto the plane of the side wall of the first housing does not overlap with the projection of the lead in the second relay onto the plane of the side wall of the first housing at least partially. The second direction intersects with the first direction.

11. The combination relay according to any one of claims 1 to 7, wherein The relay body includes a coil, the lead-out component is a coil lead-out component, and the coil is electrically connected to the coil lead-out component.

12. The combination relay according to any one of claims 1 to 7, characterized in that The relay body also includes an auxiliary contact group, and the lead-out is an auxiliary lead-out. One end of the auxiliary lead-out is connected to the auxiliary contact group, and the other end is connected to the circuit board.

13. The combination relay of claim 12, wherein, The auxiliary lead-out component includes a first sub-auxiliary lead-out component and a second sub-auxiliary lead-out component arranged at intervals; The auxiliary contact group includes an auxiliary moving spring and two auxiliary stationary contacts. One of the auxiliary stationary contacts is electrically connected to the circuit board through a first sub-auxiliary lead-out, and the other auxiliary stationary contact is electrically connected to the circuit board through a second sub-auxiliary lead-out.

14. The combined relay according to any one of claims 1-7, characterized in that, The relay body has a main stationary contact on the side opposite to the circuit board.

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