Relay module and switching device

Abstract

The utility model provides a relay module and a switching device, the relay module comprises a first bottom plate and a relay monomer arranged on the first bottom plate, the first bottom plate is provided with a first area and a second area, the first area is connected with a load leading-out terminal, the second area is connected with a coil leading-out terminal, and the relay monomer is only arranged in the first area; wherein the coil side of the relay monomer is provided with a coil connecting terminal, and a voltage conversion module is connected in series between the coil connecting terminal and the coil leading-out terminal. Through the above design, the voltage conversion module is connected in series between the coil side of the relay monomer and the coil leading-out terminal used for connecting the control unit, and the voltage conversion function module realizes a voltage conversion function through a non-mechanical connection mode. Therefore, the voltage conversion module can be utilized to provide voltage conversion and insulation isolation effects, so that the insulation capability between the driving end of the control unit and the input end of the automatic switch is improved.

Description

Technical Field

[0001] The present disclosure relates to a relay module and a switch device. Background Art

[0002] High voltage is the main development direction of semiconductor integrated circuits and new energy technologies. This design trend requires the testing industry and the energy management industry to provide new insulation detection solutions to match it. In this regard, as one of the most important switching devices for insulation detection, relays need to adapt to the insulation performance requirements under higher system voltages.

[0003] In the existing design of the relay, the relay has a high-voltage side and a low-voltage side. The high-voltage side can be understood as the load lead terminal connected to the bottom plate of the relay, and the low-voltage side can be understood as the coil lead terminal connected to the bottom plate. However, since the coil lead terminal (for example, connected to the control unit) in the existing design is directly connected to the coil connection terminal of the relay unit, when the relay is used in an application scenario in a high-voltage environment, the high-voltage environment will make the control unit and the coil connection terminal of the relay equivalent to an equipotential state, causing the high-voltage side of the relay to interfere with the low-voltage side (i.e., one end of the control unit) in the form of arcing or breakdown, resulting in damage to the control unit or malfunction (the relay is not subject to normal control logic and malfunctions), which limits the application of relays in the field of high voltage. Utility Model Content

[0004] A main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide a relay module with better insulation performance between the coil lead-out terminal and the coil side of the relay unit.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0006] According to one aspect of the present disclosure, a relay module is provided, which includes a first base plate and a relay unit arranged on the first base plate, the first base plate has a first area and a second area, the first area is connected to a load lead terminal, the second area is connected to a coil lead terminal, and the relay unit is only arranged in the first area; wherein the coil side of the relay unit has a coil connection terminal, and a voltage conversion module is connected in series between the coil connection terminal and the coil lead terminal.

[0007] According to one embodiment of the present disclosure, the first base plate is provided with a first isolation groove penetrating along the thickness direction, and the first isolation groove is located between the first area and the second area, so as to extend the creepage path between the coil connection terminal and the coil lead-out terminal on the surface of the first base plate; wherein the voltage conversion module is located on a side of the first base plate where the relay monomer is provided, and on a reference plane parallel to the first base plate, the orthographic projection figure of the voltage conversion module is at least partially located within the range of the orthographic projection figure of the first isolation groove.

[0008] According to one embodiment of the present disclosure, a first direction parallel to the first base plate and a second direction parallel to the first base plate and perpendicular to the first direction are defined, the first region and the second region are arranged along the first direction, and the first base plate has a first edge and a second edge arranged at intervals along the second direction; wherein the first isolation groove opens at the first edge or the second edge.

[0009] According to one embodiment of the present disclosure, the coil lead-out terminal and the coil connection terminal are connected via wiring of the first base plate; wherein, along the second direction, the coil lead-out terminal and the coil connection terminal are both close to the first edge, and at least one of the first isolation grooves opens at the first edge.

[0010] According to one embodiment of the present disclosure, the first base plate is provided with two first isolation grooves, and the two first isolation grooves are respectively opened at the first edge and the second edge, wherein: in the second direction, the depth of the first isolation groove opened at the first edge is greater than the depth of the other first isolation groove; and / or, in the second direction, the sum of the depths of the two first isolation grooves is greater than the width of the first base plate.

[0011] According to one embodiment of the present disclosure, the relay module further includes a first shell, the first base plate is located inside the first shell, and an insulating filling material is disposed inside the first shell.

[0012] According to one embodiment of the present disclosure, the first base plate is provided with a first isolation groove penetrating along the thickness direction, the first isolation groove is located between the first area and the second area, and is used to extend the creepage path between the coil connection terminal and the coil lead-out terminal on the surface of the first base plate, the voltage conversion module is located on the side of the first base plate where the relay monomer is provided, and on a reference plane parallel to the first base plate, the orthographic projection figure of the voltage conversion module is at least partially located within the range of the orthographic projection figure of the first isolation groove; wherein the insulating filling material is filled in at least the first isolation groove to form a solid insulation isolation between the coil lead-out terminal and the coil connection terminal of the relay monomer.

[0013] According to one embodiment of the present disclosure, the insulating filling material is also filled in the area of ​​the cavity of the first housing that is not occupied by the first bottom plate and the relay unit.

[0014] According to one of the embodiments of the present disclosure, the voltage conversion module is a cascade transformer.

[0015] According to one embodiment of the present disclosure, the relay unit includes an action component, an iron core and a coil component; the iron core has a pole surface, the action component is movably arranged and has an armature component arranged corresponding to the pole surface, and the coil component is surrounded by the iron core; wherein the coil component and the coil connection terminal are assembled into a whole via an injection molding part, the coil component is wrapped by the injection molding part, the coil connection terminal is led out from one side of the whole, and the load connection terminal is led out from the other side of the whole.

[0016] According to one embodiment of the present disclosure, the relay unit has a load side arranged at an interval from the coil side, and the load side has a load connection terminal connected to the first base plate; wherein the first base plate is provided with a second isolation groove penetrating along the thickness direction, and the second isolation groove is located between the load connection terminal and the coil connection terminal of the relay unit, so as to extend the creepage path between the load connection terminal and the coil connection terminal of the relay unit on the surface of the first base plate.

[0017] According to one of the embodiments of the present disclosure, wherein: the relay module includes at least two relay monomers, the load connection terminals of at least two relay monomers are connected in series, so as to increase the load disconnection gap, at least two relay monomers are arranged along a first direction, the first direction is parallel to the first base plate, the coil connection terminal and the load connection terminal are arranged at intervals along a second direction, the second direction is parallel to the first base plate and perpendicular to the first direction; wherein the first base plate is provided with a second isolation groove, and the second isolation groove is arranged corresponding to at least two relay monomers at the same time; and / or, the relay module includes at least two relay monomers, the load connection terminals of at least two relay monomers are connected in series, so as to increase the load disconnection gap; wherein the first base plate is provided with at least two second isolation grooves, and at least two second isolation grooves are arranged one-to-one with at least two relay monomers respectively.

[0018] According to one embodiment of the present disclosure, the relay unit has at least two load connection terminals arranged at intervals, and the relay unit is connected to the first base plate via the load connection terminals. The first base plate is provided with a third isolation groove penetrating along the thickness direction, and the third isolation groove is located between two adjacent load connection terminals of the relay unit, so as to extend the creepage path between two adjacent load connection terminals of the relay unit on the surface of the first base plate.

[0019] According to one embodiment of the present disclosure, the relay module includes at least two relay cells, the first base plate is provided with at least two third isolation grooves, and the at least two third isolation grooves are arranged in a one-to-one correspondence with the at least two relay cells.

[0020] According to one embodiment of the present disclosure, at least two of the relay monomers are arranged along a first direction, the first direction is parallel to the first base plate, the coil connection terminal and the load connection terminal are arranged at intervals along a second direction, the second direction is parallel to the first base plate and perpendicular to the first direction; wherein the load connection terminals of at least two of the relay monomers are located on the same side in the second direction, and at least two of the third isolation slots are open at the same side edge of the first base plate in the second direction.

[0021] Another main purpose of the present disclosure is to overcome at least one of the above-mentioned defects of the prior art and provide a switch device including the above-mentioned relay module.

[0022] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0023] According to another aspect of the present disclosure, a switch device is provided, comprising a second base plate and a relay module proposed in the present disclosure and described in the above embodiments, wherein the relay module is arranged on the second base plate.

[0024] It can be seen from the above technical solutions that the advantages and positive effects of the relay module and switch device proposed in the present disclosure are:

[0025] The relay module proposed in the present disclosure includes a first base plate and a relay unit. The first base plate has a first area and a second area. The first area is connected to a load lead terminal, and the second area is connected to a coil lead terminal. The relay unit is only arranged in the first area. A voltage conversion module is connected in series between the coil side of the relay unit and the coil lead terminal. Through the above design, the present disclosure connects the voltage conversion module in series between the coil connection terminal of the relay unit and the coil lead terminal for connecting the control unit. Since the voltage conversion function module realizes the voltage conversion function by non-mechanical connection, the present disclosure can use the voltage conversion module to provide voltage conversion and insulation isolation, thereby increasing the insulation capacity between the control unit drive end and the automatic switch input end.

[0026] In one embodiment of the present disclosure, the first base plate is provided with a first isolation groove. Through the above design, the present disclosure arranges the first isolation groove in conjunction with the voltage conversion module, and can use the first isolation groove to prevent insulation failure in areas outside the voltage conversion module.

[0027] In one embodiment of the present disclosure, an insulating filling material is disposed inside the first housing of the relay module. Through the above design, the present disclosure can ensure effective isolation between the high voltage side and the low voltage side of the relay module, and improve the high and low voltage isolation effect.

[0028] In one embodiment of the present disclosure, the voltage conversion module is a cascade transformer, that is, multiple transformers are connected in series in multiple stages before driving the coil of the relay unit. Through the above design, the present disclosure can form multiple isolations between the input voltage and the load (contact) voltage, greatly improving the insulation performance of the relay, thereby achieving the purpose of improving the isolation effect between the relay output and input, so that the relay module using this structure can adapt to the insulation performance requirements under higher system voltages. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar parts. Among them:

[0030] Figure 1is a schematic diagram of a three-dimensional structure of a relay module according to an exemplary embodiment;

[0031] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the relay module shown in another viewing angle;

[0032] Figure 3 yes Figure 1 A three-dimensional schematic diagram of a partial structure of a relay module is shown;

[0033] Figure 4 yes Figure 1 A three-dimensional exploded schematic diagram of a relay module is shown;

[0034] Figure 5 yes Figure 4 A schematic diagram of a three-dimensional structure of a partial structure shown;

[0035] Figure 6 yes Figure 4 A schematic diagram of the three-dimensional structure of the first base plate is shown;

[0036] Figure 7 yes Figure 4 The three-dimensional exploded schematic diagram of the relay monomer shown;

[0037] Figure 8 yes Figure 4 A cross-sectional view showing a partial structure of a relay monomer;

[0038] Fig. 9 is a schematic diagram of a three-dimensional structure of a first base plate of a relay module according to another exemplary embodiment;

[0039] Fig.10 is a schematic three-dimensional structural diagram showing a partial structure of a relay module according to another exemplary embodiment;

[0040] Fig.11 yes Fig.10 A schematic diagram of the three-dimensional structure of the first base plate is shown;

[0041] Fig.12 is a schematic diagram of a three-dimensional structure of a switch device according to an exemplary embodiment;

[0042] Fig.13 yes Fig.12 A schematic diagram of the system wiring plane of the switch device shown;

[0043] Fig.14 yes Fig.12 A perspective exploded schematic diagram of a switch device is shown;

[0044] Fig.15is a schematic diagram of a three-dimensional structure of a switch device according to another exemplary embodiment;

[0045] Fig.16 yes Fig.15 A schematic diagram of the three-dimensional structure of the switch device shown in another viewing angle;

[0046] Fig.17 yes Fig.15 A three-dimensional exploded schematic diagram of the switch device is shown.

[0047] The following are the descriptions of the reference numerals:

[0048] 100. Relay module; 131. Coil lead terminal;

[0049] 110. First bottom plate; 132. Load lead terminal;

[0050] 1102. First area; 140. Voltage conversion module;

[0051] 1103. Second area; 150. First shell;

[0052] 1104. first edge; 160. insulating filling material;

[0053] 1105. Second edge; 200. Second bottom plate;

[0054] 120. Relay monomer; 210. Connection channel;

[0055] 121. Coil connection terminal; C1. First isolation slot;

[0056] 122. Load connection terminal; C2. Second isolation slot;

[0057] 123. Second housing; C3. Third isolation slot;

[0058] 124. Base; C4. Fourth isolation slot;

[0059] 125. Action assembly; C5. Fifth isolation slot;

[0060] 126. Iron core; C6. Sixth isolation slot;

[0061] 127. Coil assembly; X. First direction;

[0062] 128. Injection molded parts; Y. Second direction. DETAILED DESCRIPTION

[0063] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various changes in different embodiments without departing from the scope of the present disclosure, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0064] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure and in which different exemplary structures, systems and steps that can implement multiple aspects of the present disclosure are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although the terms "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present disclosure.

[0065] See also Figure 1 , which is a representative diagram of the three-dimensional structure of the relay module 100 proposed in the present disclosure. In this exemplary embodiment, the relay module 100 proposed in the present disclosure is described by taking a switch device applied to a programmable switch (also known as a matrix switch) as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present disclosure to other types of switch devices, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the relay module 100 proposed in the present disclosure.

[0066] Related References Figures 2 to 6 , Figure 2 : A three-dimensional structural schematic diagram of the relay module 100 at another viewing angle is representatively shown; Figure 3 , a three-dimensional structural diagram of a part of the structure of the relay module 100 is representatively shown, wherein the insulating filling material 160 is specifically hidden; Figure 4 : A three-dimensional exploded schematic diagram of the relay module 100 is representatively shown;

[0067] Figure 5 A representative example is shown in Figure 4 A schematic diagram of a three-dimensional structure of a partial structure shown; Figure 6 1 is a representative three-dimensional structural diagram of the first base plate 110. The structures, connection modes and functional relationships of the main components of the relay module 100 proposed in the present disclosure will be described in detail below in conjunction with the above drawings.

[0068] like Figures 1 to 6 As shown, in one embodiment of the present disclosure, the relay module 100 proposed in the present disclosure includes a first base plate 110 and a relay monomer 120 arranged on the first base plate 110. The first base plate 110 has a first area 1102 and a second area 1103, the first area 1102 of the first base plate 110 is connected to a load lead terminal 132, the second area 1103 of the first base plate 110 is connected to a coil lead terminal 131, and the relay module 100 is suitable for connecting, for example, a control unit via the coil lead terminal 131. The relay monomer 130 is only arranged in the first area 1102 of the first base plate 110. On this basis, the coil side of the relay monomer 120 has a coil connection terminal 121, and a voltage conversion module 140 is connected in series between the coil connection terminal 121 and the coil lead terminal 131 for connecting the control module 100. Through the above design, the present disclosure connects the voltage conversion module 140 in series between the coil connection terminal 121 of the relay monomer 120 and the coil lead-out terminal 131 for connecting the control unit. Since the voltage conversion function module 140 realizes the voltage conversion function by non-mechanical connection, the present disclosure can use the voltage conversion module 140 to provide voltage conversion and insulation isolation, thereby increasing the insulation capacity between the control unit drive end and the automatic switch input end.

[0069] like Figures 1 to 6 As shown, in one embodiment of the present disclosure, the first base plate 110 may be provided with a first isolation groove C1 that penetrates along the thickness direction, and the first isolation groove C1 is located between the first area 1102 and the second area 1103. On this basis, the voltage conversion module 140 is located on the side of the first base plate 110 where the relay monomer 120 is provided, and on a reference plane parallel to the first base plate 110, the orthographic projection figure of the voltage conversion module 140 is at least partially located within the range of the orthographic projection figure of the first isolation groove C1. Through the above design, the present disclosure can increase the creepage path between the coil lead terminal 131 of the relay module 100 and the coil connection terminal 121 of the relay monomer 120 on the surface of the first base plate 110 by using the first isolation groove C1, thereby improving the insulation performance between the contact lead terminal 132 and the coil lead terminal 131 of the relay module 100. Among them, when the first base plate 110 is arranged in the first shell 150 via the insulating filling material 160, the first isolation groove C1 can be filled with the insulating filling material 160, thereby forming a solid insulating material isolation between the high-voltage side and the low-voltage side of the relay unit 100, further reducing the interference risk between the high-voltage side and the low-voltage side. In addition, the first isolation groove C1 can serve as an injection port and / or exhaust port for the insulating filling material 160 to ensure the density of the insulating filling material 160 filling, avoid the generation of blind cavities and pores inside after potting and affect the insulation effect. Of course, additional injection ports can also be set for the injection of the insulating filling material 160.

[0070] like Figure 5 and Figure 6 As shown, in one embodiment of the present disclosure, a first direction X parallel to the first bottom plate 110 and a second direction Y parallel to the first bottom plate 110 and perpendicular to the first direction X are defined. Accordingly, the first region 1102 and the second region 1103 of the first bottom plate 110 are arranged along the first direction X, and the first bottom plate 110 has a first edge 1104 and a second edge 1105 arranged at intervals along the second direction Y. On this basis, the first isolation groove C1 can be opened at the first edge 1104 and / or the second edge 1105 of the first bottom plate 110.

[0071] like Figure 5 and Figure 6 As shown, in one embodiment of the present disclosure, the relay monomer 120 has a coil connection terminal 121 connected to the first base plate 110, and the coil lead terminal 131 and the coil connection terminal 121 can be connected via the wiring of the first base plate 110 (for example, by Figure 5 On this basis, along the second direction Y, the coil lead terminal 131 and the coil connection terminal 121 are both close to the first edge 1104 of the first bottom plate 110, and at least one first isolation slot C1 opens at the first edge 1104.

[0072] like Figure 5 and Figure 6 As shown, in one embodiment of the present disclosure, the first bottom plate 110 may be provided with at least two first isolation grooves C1, such as but not limited to the two first isolation grooves C1 shown in the figure. In some embodiments, the first bottom plate 110 may also be provided with only one first isolation groove C1, which is not limited to this embodiment.

[0073] like Figure 5 and Figure 6 As shown, based on the design that the first base plate 110 is provided with two first isolation grooves C1, in one embodiment of the present disclosure, the two first isolation grooves C1 are respectively opened at the first edge 1104 and the second edge 1105 of the first base plate 110. Moreover, in the second direction Y, the depth of the first isolation groove C1 opened at the first edge 1104 can be greater than the depth of the other first isolation groove C1. Through the above design, the present disclosure can reasonably design the depth of each first isolation groove C1 to ensure the isolation effect, and can further optimize the arrangement effect of the voltage conversion module 140, while avoiding the first isolation groove C1 being too large and excessively affecting the structural strength of the first base plate 110.

[0074] like Figure 5 and Figure 6As shown, based on the design that the two first isolation grooves C1 have different depths in the second direction Y, in one embodiment of the present disclosure, the two first isolation grooves C1 can be staggered along the first direction X. In addition, the first isolation groove C1 with a larger depth in the second direction Y is closer to the second region 1103 of the first bottom plate 110 than the other first isolation groove C1.

[0075] like Figure 5 and Figure 6 As shown, based on the design that the first base plate 110 is provided with two first isolation grooves C1, in one embodiment of the present disclosure, in the second direction Y, the sum of the depths of the two first isolation grooves C1 can be greater than the width of the first base plate, further increasing the creepage path on the surface of the first base plate 110 between the coil lead-out terminal 131 of the relay module 100 and the coil connection terminal 121 of the relay cell 120.

[0076] See also Fig. 9 , Fig. 9 2 represents a three-dimensional structural diagram of a first base plate 110 of a relay module in another exemplary embodiment that conforms to the design concept of the present disclosure.

[0077] Different from Figures 4 to 6 In the embodiment shown, the first bottom plate 110 is provided with two first isolation grooves C1. Fig. 9 As shown, in one embodiment of the present disclosure, the first bottom plate 110 may also only have one first isolation groove C1 .

[0078] like Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, the relay module 100 proposed in the present disclosure may also include a first housing 150, the first base plate 110 is located in the first housing 150, and the first housing 150 is provided with an insulating filling material 160. Through the above design, the present disclosure can use the insulating filling material 160 to provide an isolation effect, and further improve the insulation withstand voltage performance of the relay device. In addition, each isolation groove opened on the first base plate 110 can be used as an injection port and / or an exhaust port of the insulating filling material 160, and of course, an additional injection port can also be provided for the injection of the insulating filling material 160.

[0079] Based on the design that the relay device includes a first housing 150 and an insulating filling material 160 is disposed inside the first housing 150, in one embodiment of the present disclosure, when a first isolation groove C1 is disposed on the first base plate 100, the insulating filling material 160 is at least filled in the first isolation groove C1. Through the above design, when the first base plate 100 is disposed in the first housing 150 via the insulating filling material 160, at least the first isolation groove C1 can be filled with the insulating filling material 160, and at least the voltage conversion function module 140 is wrapped by the insulating filling material 160, and accordingly, the present disclosure can form a solid insulation isolation between the coil lead-out terminal 131 and the coil connection terminal 121 of the relay monomer 120.

[0080] like Figure 2 and Figure 3 As shown, based on the design that the relay device includes a first shell 150 and an insulating filling material 160 is arranged inside the first shell 150, in one embodiment of the present disclosure, the insulating filling material 160 can also be filled in the area of ​​the cavity of the first shell 150 that is not occupied by the first base plate 110 and the relay unit 120.

[0081] In one embodiment of the present disclosure, the voltage conversion module 140 can be a cascade transformer. Among them, the cascade transformer utilizes the unequal potential electrical isolation and physical insulation layer isolation characteristics of the transformer, connects the transformer in multiple stages in series, and then drives the relay coil, and then controls the contact opening and closing by the coil, so that multiple isolations are formed between the input voltage and the load (contact) voltage, thereby achieving the purpose of improving the isolation effect between the relay output and the input, so that the relay module 140 using this structure can adapt to the insulation performance requirements under higher system voltages. At the same time, in order to improve the conversion efficiency of the transformer, by selecting a low coil voltage relay, the purpose of transformer step-down conversion is achieved (taking 24V input as an example, selecting a 5V coil specification, the transformer is 24 to 5V, the effect is equivalent to high-voltage transmission and can reduce losses). In some embodiments, the voltage conversion module 140 can also use a device with a voltage conversion function, for example, the voltage conversion module 140 can also use a single transformer, thereby utilizing the unequal potential electrical isolation and physical insulation layer isolation characteristics of the transformer, and then controlling the contact opening and closing by the coil to achieve the isolation effect between the load and the input.

[0082] See also Fig.10 and Fig.11 , Fig.10 A three-dimensional structural diagram of a partial structure of a relay module in another exemplary embodiment in accordance with the design concept of the present disclosure is representatively shown; Fig.11 A representative example is shown in Fig.10 FIG. 1 is a schematic diagram of the three-dimensional structure of the first base plate 110 .

[0083] like Fig.10 and Fig.11 As shown, in one embodiment of the present disclosure, the load side of the relay monomer 120 has a load connection terminal 122, and the coil side has a coil connection terminal 121. The first base plate 110 may be provided with a second isolation groove C2 that penetrates along the thickness direction, and the second isolation groove C2 is located between the load connection terminal 122 and the coil connection terminal 121 of the relay monomer 120. Through the above design, the present disclosure can use the second isolation groove C2 to extend the creepage path between the load connection terminal 122 and the coil connection terminal 121 of the relay monomer 120 on the surface of the first base plate 110. Among them, when the first base plate 110 is arranged in the first housing 150 via the insulating filling material 160, the second isolation groove C2 can be filled with the insulating filling material 160, thereby forming a solid insulating material isolation between the load connection terminal 122 and the coil connection terminal 121 of the electrical unit 120, thereby blocking the creepage path of the two load sides of the relay monomer 120 on the first base plate 110, and further reducing the interference risk between the load connection terminal 122 and the coil connection terminal 121.

[0084] like Fig.10 and Fig.11 As shown, in one embodiment of the present disclosure, still taking the relay module 100 including at least two relay monomers 120 as an example, the first base plate 110 can be provided with only one second isolation groove C2, and the second isolation groove C2 corresponds to at least two relay monomers 120 at the same time, that is, the load connection terminal 122 and the coil connection terminal 121 of each relay monomer 120 are isolated at the same time through a second isolation groove C2. Through the above design, the present disclosure can simplify the structural complexity of the first base plate 110, reduce the processing difficulty of the first base plate 110, and at the same time help reduce the amount of raw materials used in the first base plate 110, which helps reduce material costs.

[0085] Different from Fig.10 and Fig.11 In the illustrated embodiment, in an embodiment not shown in the present disclosure, taking the relay module 100 including at least two relay monomers 120 arranged along the first direction X as an example, the first base plate 100 may also be provided with at least two second isolation grooves C2, and the at least two second isolation grooves C2 are arranged one-to-one with the at least two relay monomers 120 respectively.

[0086] like Fig.10 and Fig.11As shown, in one embodiment of the present disclosure, the load side of the relay monomer 120 may have at least two load connection terminals 122, which are load input and load output. On this basis, the first base plate 110 is provided with a third isolation groove C3 that penetrates along the thickness direction, and the third isolation groove C3 is located between two adjacent load connection terminals 122 of the relay monomer 120. Accordingly, the third isolation groove C3 can block the leakage path between the two adjacent load connection terminals 122 of the relay monomer 120 on the surface of the first base plate 110, and at the same time, the third isolation groove C3 can extend the creepage path between the two adjacent load connection terminals 122 of the relay monomer 120 on the surface of the first base plate 110. Among them, when the first base plate 110 is arranged in the first shell 150 via the insulating filling material 160, the third isolation groove C3 can be filled with the insulating filling material 160, thereby forming a solid insulating material isolation between two adjacent load connection terminals 122, thereby blocking the creepage path of the two load sides of the relay unit 120 on the first base plate 110, and further reducing the interference risk between the two adjacent load connection terminals 122.

[0087] like Fig.10 and Fig.11 As shown, in one embodiment of the present disclosure, the relay module 100 includes at least two relay monomers 120, such as but not limited to the three relay monomers 120 shown in the accompanying drawings. On this basis, the first base plate 110 can be provided with at least two third isolation grooves C3, that is, the number of the third isolation grooves C3 can be the same as the number of the relay monomers 120, and at least two third isolation grooves C3 are arranged in a one-to-one correspondence with at least two relay monomers 120. Through the above design, the present disclosure can ensure the isolation performance between the two load connection terminals 122 of each relay monomer 120, and on this basis, sufficient space is reserved on the first base plate 110 for the connection of each load connection terminal 122.

[0088] like Fig.10 and Fig.11 As shown, based on the design of one-to-one arrangement of the third isolation slots C3 and the relay monomers 120, in one embodiment of the present disclosure, at least two relay monomers 120 are arranged along the first direction X, and the coil connection terminals 121 and the load connection terminals 122 of the relay monomers 120 are arranged at intervals along the second direction Y. On this basis, the load connection terminals 122 of at least two relay monomers 120 are located on the same side in the second direction Y, and at least two third isolation slots C3 can be opened at the same side edge of the first bottom plate 110 in the second direction Y (for example, the second edge 1105 shown in the figure).

[0089] like Figure 4 and Figure 5As shown, in one embodiment of the present disclosure, along the second direction Y, the coil connection terminal 121 of the relay unit 120 can be closer to the coil lead terminal 131 of the relay module 100 than the load connection terminal 122, and the load connection terminal 122 of the relay unit 120 can be closer to the load lead terminal 132 of the relay module 100 than the coil connection terminal 121.

[0090] like Figure 7 and Figure 8 As shown, in one embodiment of the present disclosure, the relay monomer 120 may specifically include a second housing 123, a base 124, an action component 125, an iron core 126, a static spring, and a coil component 127. The iron core 126 is disposed in the base 124 and partially extends out of the base 124 to form a pole surface, the action component 125 is movably disposed in the base 124, and the armature of the action component 125 is arranged corresponding to the pole surface of the iron core 126. The coil component 127 is disposed in the iron core 126, and the coil component 127 may include a winding (such as an enameled wire) and a coil frame. On this basis, the coil assembly 127 and the coil connection terminal 121 are assembled into a whole through the injection molding 128, the coil connection terminal 121 of the relay monomer 120 is led out from one side of the above whole, the coil assembly 127 and at least part of the coil connection terminal 121 are wrapped by the injection molding 129, and the load connection terminal 122 (such as a static spring) is led out from the other side of the above whole. Accordingly, the high-voltage side and the low-voltage side of the relay monomer 120 can achieve an insulation function suitable for a high-voltage application environment through the injection molding 128. In addition, the contacts on the load connection terminal 122 (such as the static contacts on the static spring) are connected in series through the action component. When the contacts of the relay monomer 120 are disconnected, the contact gap between the two load connection terminals 122 can be multiplied based on the design of the above-mentioned contact series connection, thereby improving the insulation performance of the relay monomer 120 itself, and further improving the safety and insulation reliability of the electrical appliance. Accordingly, the present disclosure increases the insulation capability between the control unit drive end and the automatic switch input end of the relay module 100 while also improving the insulation performance of the relay monomer 120 itself. Combined with this design of improving insulation performance both internally and externally, the present disclosure is more suitable for larger voltage scenarios and also places higher requirements on the dielectric withstand voltage performance of the relay module. Therefore, the present disclosure can meet the higher requirements of the above-mentioned type of relay monomer 120 for dielectric withstand voltage performance.

[0091] like Figures 3 to 5 As shown, in one embodiment of the present disclosure, the two load lead terminals 132 of the relay module 100 can be respectively located on the two outer sides of the load side of the relay unit 120. Through the above design, the present disclosure can increase the distance between the two load lead terminals 132 of the relay module 100, increase the creepage distance or electrical clearance, and thus improve the insulation withstand voltage performance.

[0092] Based on the design that the two load lead terminals 132 are respectively located on the two outer sides of the load side of the relay monomer 120, in one embodiment of the present disclosure, the relay device proposed in the present disclosure may include at least two relay monomers 120, such as but not limited to the three shown in the accompanying drawings, and the load connection terminals 122 of these relay monomers 120 are connected in series, so as to increase the load disconnection gap, thereby improving the dielectric withstand voltage between the contacts and the arc breaking ability when the contacts are disconnected. On this basis, the two load lead terminals 132 of the relay module 100 can be respectively located on the two outermost sides of at least two relay monomers 120.

[0093] It should be noted that the relay modules shown in the drawings and described in this specification are only a few examples of the many types of relay modules that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the relay modules shown in the drawings or described in this specification.

[0094] Based on the above detailed description of several exemplary embodiments of the relay module proposed in the present disclosure, exemplary embodiments of the switch device proposed in the present disclosure will be described below.

[0095] See also Fig.12 , which is a representative schematic diagram of the three-dimensional structure of the switch device proposed in the present disclosure. In this exemplary embodiment, the switch device proposed in the present disclosure is described by taking a programmable switch (also known as a matrix switch) as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present disclosure to other switch devices, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the switch device proposed in the present disclosure.

[0096] Related References Fig.13 and Fig.14 , Fig.13 A schematic diagram of the system wiring plan of the switchgear is representatively shown in FIG. Fig.14 The structure, connection mode and functional relationship of each main component of the switch device proposed in the present disclosure will be described in detail below in conjunction with the above drawings.

[0097] like Figure 12 to Figure 14 As shown, in one embodiment of the present disclosure, the switch device proposed in the present disclosure includes a second base plate 200 and a relay module 100 proposed in the present disclosure and described in detail in the above embodiment, and the relay module 100 is arranged on the second base plate 200. For example, the coil lead terminal 131 and the load lead terminal 132 of the relay module 100 are respectively connected to the wiring of the second base plate 200.

[0098] It should be noted that in Fig.13 In the structure shown, for ease of understanding, the outlines of the second base plate 200 and each relay module 100 are schematically illustrated by solid lines in the figure, and the wiring of the second base plate 200 connected to the coil lead-out terminal 131 (i.e., the high-voltage part) is schematically illustrated by dotted lines in the figure, and the wiring of the second base plate 200 connected to the load lead-out terminal 132 (i.e., the low-voltage part) is schematically illustrated by dotted lines.

[0099] like Fig.12 and Fig.14 As shown, in one embodiment of the present disclosure, the switch device proposed in the present disclosure may include eight relay modules 100. Among them, the eight relay modules 100 can be divided into two module units, and each module unit includes two module groups, and each module group includes two relay modules 100. Specifically, through the wiring of the second base plate 200, the coil lead terminals 131 of the two relay modules 100 belonging to the same module group are connected, and the load lead terminals 132 of the four relay modules 100 belonging to the same module unit are respectively connected to the object under test. Accordingly, the eight relay modules shown in the accompanying drawings can form a four-way output programmable switch, but their essence is a two-way output minimum programmable unit composed of four relays. Therefore, for various embodiments that are positive integer multiples of the minimum programmable unit, they do not deviate from the design concept of the present disclosure. In some embodiments, based on the design that each module unit includes two module groups and each module group includes two relay modules 100, the number of module units included in the relay module proposed in the present disclosure can also be one, three or more than three, then the number of relay modules 100 can be at least four, or can be a positive integer multiple of four.

[0100] like Fig.12 and Fig.14 As shown, in one embodiment of the present disclosure, two module units are arranged along the second direction Y, two module groups belonging to the same module unit are arranged along the first direction X, and two relay modules 100 belonging to the same module group are arranged along the second direction Y. Wherein, the coil lead terminals 131 of the two relay modules 100 belonging to the same module group are located on the same side in the first direction X, and the load lead terminals 132 of the two relay modules 100 are located on the same other side.

[0101] like Fig.13 , which is a representative schematic diagram of the system wiring plane of the switch device. Specifically, Fig.13RLY1, RLY2, RLY3, RLY4, RLY5, RLY6, RLY7, and RLY8 represent eight relay modules 100, respectively; CH1, CH2, CH3, and CH4 represent four connection channels, respectively; the dotted line represents the connection path on the high-voltage side, and the dotted line represents the connection path on the low-voltage side. Accordingly, the relay module proposed in the present disclosure can at least realize the following programmable switch functions:

[0102] The switch circuit composed of relay loads can be set by program to achieve flexible logic combination, so as to achieve the purpose of arbitrary channel selection and matching, and finally realize programmable control in customer application. For example: when RLY1 is combined with RLY6, channel CH1-CH2 is connected to complete the forward voltage test of one of the objects under test; when RLY1 is combined with RLY6, RLY7, and RLY8, channels CH1-CH2, CH1-CH3, and CH1-CH4 are connected at the same time, and the forward voltage test of multiple objects under test can be completed. When RLY2 is combined with RLY5, channel CH2-CH1 is connected to complete the reverse voltage test of one of the objects under test; when RLY2 is combined with RLY5, RLY7, and RLY8, channels CH2-CH1, CH2-CH3, and CH2-CH4 are connected at the same time, and the reverse voltage test of multiple objects under test can be completed. Specifically, taking the switching device including eight relay modules 100 shown in the accompanying drawings as an example, the programmable switching functions that can be realized can refer to the following table, wherein "×" represents logical interlocking, that is, simultaneous connection is not allowed, and "○" represents that a logical combination can be realized, for example, "CH1→CH2" represents that the current flows from channel CH1 to channel CH2.

[0103]

[0104] See also Figures 15 to 17 , Fig.15 A three-dimensional structural schematic diagram of a switch device in accordance with the design concept of the present disclosure in another exemplary embodiment is representatively shown in FIG. Fig.16 A representative example is shown in Fig.16 A schematic diagram of the three-dimensional structure of the switch device shown in another viewing angle; Fig.17 A representative example is shown in Fig.16 A three-dimensional exploded schematic diagram of a switch device is shown.

[0105] like Figures 15 to 17As shown, in one embodiment of the present disclosure, the relay module 100 has two load lead terminals 132. The second base plate 200 is provided with a fourth isolation groove C4 penetrating along the thickness direction, and the fourth isolation groove C4 is located between the two load lead terminals 132 of the relay module 100. Accordingly, the fourth isolation groove C4 can extend the creepage path between the two load lead terminals 132 on the surface of the second base plate 200.

[0106] like Figures 15 to 17 As shown, based on the design that the second base plate 200 is provided with a fourth isolation groove C4, in one embodiment of the present disclosure, the load lead terminal 132 of the two relay modules 100 belonging to the same module group can be located on the same side in the first direction X, and the two relay modules 100 can correspond to the same fourth isolation groove C4. In other words, only the fourth isolation grooves C4 having the same number as the number of module groups need to be provided on the second base plate 200. Through the above design, the present disclosure can simplify the structural complexity of the second base plate 200 and reduce the difficulty of processing. In some embodiments, for two relay modules 100 belonging to the same module group, the second base plate 200 can also be provided with two fourth isolation grooves C4, and the two fourth isolation grooves C4 are arranged respectively corresponding to the two relay modules 100 belonging to the same module group.

[0107] like Figures 15 to 17 As shown, in one embodiment of the present disclosure, when each module group of a plurality of module units is arranged along the second direction Y, the fourth isolation groove C4 can simultaneously correspond to each module group of each module unit located on the same side in the first direction X. Accordingly, only two fourth isolation grooves C4 need to be provided on the second bottom plate 200. Through the above design, the present disclosure can further simplify the structural complexity of the second bottom plate 200 and further reduce the difficulty of processing.

[0108] like Figures 15 to 17 As shown, in one embodiment of the present disclosure, the second base plate 200 may also be provided with a fifth isolation groove C5 penetrating along the thickness direction, and the fifth isolation groove C5 is located between the load lead terminal 132 and the coil lead terminal 131. Through the above design, the fifth isolation groove C5 can block the creepage path between the load lead terminal 132 and the coil lead terminal 131 of the relay module 100 on the surface of the second base plate 200 and extend the creepage path between the load lead terminal 132 and the coil lead terminal 131 of the relay module 100 on the surface of the second base plate 200, further reducing the interference risk between the two load lead terminals 132.

[0109] like Figures 15 to 17As shown, based on the design that the second base plate 200 is provided with the fifth isolation groove C5, in one embodiment of the present disclosure, the high-voltage sides of the two relay modules 100 belonging to the same module group are located on the same side in the first direction X, and the two relay modules 100 can correspond to the same fifth isolation groove C5. In other words, only the number of fifth isolation grooves C5 equal to the number of module groups needs to be provided on the second base plate 200. Through the above design, the present disclosure can simplify the structural complexity of the second base plate 200 and reduce the difficulty of processing. In some embodiments, for the two relay modules 100 belonging to the same module group, the second base plate 200 may also be provided with two fifth isolation grooves C5, and the two fifth isolation grooves C5 are arranged corresponding to the two relay modules 100 belonging to the same module group.

[0110] like Figures 15 to 17 As shown, in one embodiment of the present disclosure, when each module group of a plurality of module units is arranged along the second direction Y, the fifth isolation groove C5 can simultaneously correspond to each module group of each module unit located on the same side in the first direction X. Accordingly, only two fifth isolation grooves C5 need to be provided on the second bottom plate 200. Through the above design, the present disclosure can further simplify the structural complexity of the second bottom plate 200 and further reduce the difficulty of processing.

[0111] like Figures 15 to 17 As shown, in one embodiment of the present disclosure, a connecting channel 210 may be provided on the second base plate 200, and the connecting channel 210 is used to connect the load lead terminals 132 of two relay modules 100 belonging to different module groups. Accordingly, for one module unit, two connecting channels 210 arranged along the second direction Y are provided on the second base plate 200.

[0112] like Figures 15 to 17 As shown, based on the design that the second bottom plate 200 is provided with a connecting channel 210 , in one embodiment of the present disclosure, a sixth isolation groove C6 may also be provided on the second bottom plate 200 , and the sixth isolation groove C6 is located between two adjacent connecting channels 210 .

[0113] It should be noted that the relay modules shown in the drawings and described in this specification are only a few examples of the many types of relay modules that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the relay modules shown in the drawings or described in this specification.

[0114] In summary, the relay module 100 proposed in the present disclosure includes a first base plate 110 and a relay monomer 120, the first base plate 110 has a first area 1102 and a second area 1103, the first area 1102 is connected to a load lead terminal 132, the second area 1103 is connected to a coil lead terminal 131, and the relay monomer 120 is only arranged in the first area 1102. A voltage conversion module 140 is connected in series between the coil connection terminal 121 and the coil lead terminal 131 of the relay monomer 120. Through the above design, the present disclosure connects the voltage conversion module 140 in series between the coil connection terminal 121 of the relay monomer 120 and the coil lead terminal 131 for connecting the control unit. Since the voltage conversion function module 140 realizes the voltage conversion function by non-mechanical connection, the present disclosure can use the voltage conversion module 140 to provide voltage conversion and insulation isolation, thereby increasing the insulation capacity between the control unit drive end and the automatic switch input end.

[0115] The exemplary embodiments of the relay module and the switch device proposed in the present disclosure are described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "one" and "above" are used to indicate that there are one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open-ended inclusion and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0116] Although the relay module and switch device proposed by the present disclosure have been described according to various specific embodiments, those skilled in the art will recognize that the present disclosure can be implemented with modifications within the spirit and scope of the claims.

Claims

1. A relay module, characterized in that: It includes a first base plate and a relay unit arranged on the first base plate, the first base plate has a first area and a second area, the first area is connected to a load lead terminal, the second area is connected to a coil lead terminal, and the relay unit is only arranged in the first area; wherein the coil side of the relay unit has a coil connection terminal, and a voltage conversion module is connected in series between the coil connection terminal and the coil lead terminal.

2. The relay module according to claim 1, characterized in that: The first base plate is provided with a first isolation groove penetrating along the thickness direction, and the first isolation groove is located between the first area and the second area, and is used to extend the creepage path between the coil connection terminal and the coil lead-out terminal on the surface of the first base plate; wherein the voltage conversion module is located on a side of the first base plate where the relay monomer is provided, and on a reference plane parallel to the first base plate, the orthographic projection pattern of the voltage conversion module is at least partially located within the range of the orthographic projection pattern of the first isolation groove.

3. The relay module according to claim 2, characterized in that: A first direction parallel to the first base plate and a second direction parallel to the first base plate and perpendicular to the first direction are defined, the first region and the second region are arranged along the first direction, the first base plate has a first edge and a second edge arranged at intervals along the second direction; wherein the first isolation groove opens at the first edge or the second edge.

4. The relay module according to claim 3, characterized in that: The coil lead-out terminal and the coil connecting terminal are connected via wiring on the first bottom plate; wherein, along the second direction, the coil lead-out terminal and the coil connecting terminal are both close to the first edge, and at least one of the first isolation grooves opens at the first edge.

5. The relay module according to claim 4, characterized in that: The first bottom plate is provided with two first isolation grooves, and the two first isolation grooves are opened at the first edge and the second edge respectively, wherein: In the second direction, a depth of the first isolation groove opening at the first edge is greater than a depth of another first isolation groove; and / or In the second direction, the sum of the depths of the two first isolation grooves is greater than the width of the first bottom plate.

6. The relay module according to claim 1, characterized in that: The relay module further includes a first housing, the first bottom plate is located inside the first housing, and an insulating filling material is disposed inside the first housing.

7. The relay module according to claim 6, characterized in that: The first base plate is provided with a first isolation groove penetrating along the thickness direction, the first isolation groove is located between the first area and the second area, and is used to extend the creepage path between the coil connection terminal and the coil lead-out terminal on the surface of the first base plate, the voltage conversion module is located on the side of the first base plate where the relay monomer is provided, and on a reference plane parallel to the first base plate, the orthographic projection figure of the voltage conversion module is at least partially located within the range of the orthographic projection figure of the first isolation groove; wherein the insulating filling material is filled in at least the first isolation groove to form a solid insulation isolation between the coil lead-out terminal and the coil connection terminal of the relay monomer.

8. The relay module according to claim 7, characterized in that: The insulating filling material is also filled in the area of ​​the cavity of the first housing that is not occupied by the first bottom plate and the relay unit.

9. The relay module according to claim 1, characterized in that: The voltage conversion module is a cascade transformer.

10. The relay module according to any one of claims 1 to 9, characterized in that: The relay unit includes an action component, an iron core and a coil component; the iron core has a pole surface, the action component is movably arranged and has an armature component arranged corresponding to the pole surface, and the coil component is surrounded by the iron core; wherein the coil component and the coil connection terminal are assembled into a whole through an injection molded part, the coil component is wrapped by the injection molded part, the coil connection terminal is led out from one side of the whole, and the load side of the relay unit has a load connection terminal, and the load connection terminal is led out from the other side of the whole.

11. The relay module according to any one of claims 1 to 9, characterized in that: The relay unit has a load side spaced apart from the coil side, and the load side has a load connection terminal connected to the first base plate; wherein the first base plate is provided with a second isolation groove penetrating along the thickness direction, and the second isolation groove is located between the load connection terminal and the coil connection terminal of the relay unit, so as to extend the creepage path between the load connection terminal and the coil connection terminal of the relay unit on the surface of the first base plate.

12. The relay module according to claim 11, characterized in that: The relay module comprises at least two relay monomers, the load connection terminals of at least two relay monomers are connected in series to increase the load disconnection gap, at least two relay monomers are arranged along a first direction, the first direction is parallel to the first bottom plate, the coil connection terminal and the load connection terminal are arranged at intervals along a second direction, the second direction is parallel to the first bottom plate and perpendicular to the first direction; wherein the first bottom plate is provided with a second isolation groove, and the second isolation groove is arranged corresponding to at least two relay monomers at the same time; and / or The relay module includes at least two relay monomers, and the load connection terminals of at least two relay monomers are connected in series to increase the load disconnection gap; wherein, the first base plate is provided with at least two second isolation grooves, and at least two second isolation grooves are arranged one-to-one with at least two relay monomers respectively.

13. The relay module according to any one of claims 1 to 9, characterized in that: The relay cell has at least two load connection terminals arranged at intervals, and the relay cell is connected to the first base plate via the load connection terminals. The first base plate is provided with a third isolation groove penetrating along the thickness direction, and the third isolation groove is located between two adjacent load connection terminals of the relay cell, so as to extend the creepage path between two adjacent load connection terminals of the relay cell on the surface of the first base plate.

14. The relay module according to claim 13, characterized in that: The relay module includes at least two relay monomers, the first bottom plate is provided with at least two third isolation grooves, and the at least two third isolation grooves are arranged in a one-to-one correspondence with the at least two relay monomers.

15. The relay module according to claim 14, characterized in that: At least two of the relay monomers are arranged along a first direction, the first direction is parallel to the first base plate, the coil connection terminal and the load connection terminal are arranged at intervals along a second direction, the second direction is parallel to the first base plate and perpendicular to the first direction; wherein the load connection terminals of at least two of the relay monomers are located on the same side in the second direction, and at least two of the third isolation slots are opened at the same side edge of the first base plate in the second direction.

16. A switch device, characterized in that: It comprises a second base plate and the relay module according to any one of claims 1 to 15, wherein the relay module is arranged on the second base plate.

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