Relay, control and control circuit modules

Abstract

Provided are a relay, a control device, and a control circuit module that can reduce and shield interference signals input from the load end and conducted to the relay's control circuit, thereby ensuring normal relay operation. [Solution] In the relay, the control device, and the control circuit module, the relay includes a coil (11) and an anti-interference element (42). The anti-interference element (42) is connected to the coil (11), and when the coil (11) is used to electrically connect to an external control circuit (41), the coil (11) and the anti-interference element (42) are connected in series in the external control circuit (41). When the relay operates, the anti-interference element (42) and the coil (11) are connected in series in the external control circuit (41), thereby significantly reducing and shielding interference signals input from the load end and conducted to the coil (11), thereby ensuring normal relay operation.

Description

[Technical Field]

[0001] [Cross-Citation of Related Applications] This disclosure claims priority to Chinese patent applications Nos. 202211326647.4, 202211329263.8, and 202222842938.0, filed on October 27, 2022, entitled "Relay, Control Device and Control Circuit Module," respectively, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the technical field of relays, and more particularly to high voltage DC relays, controllers and control circuit modules. [Background technology]

[0003] A relay is an electronic control device and a switch for controlling a load circuit. In related technology, when a signal of a different frequency is input to the high-voltage load end, the signal is conducted to the low-voltage coil end of the relay along the relay's magnetic induction member and air medium coupling, causing electromagnetic interference at the coil end. Furthermore, with technological advances, the frequency of signals input to the load circuit (such as current frequency) is increasing. If the signal of a different frequency input to the high-voltage load end is conducted to the coil end along the relay's magnetic induction member and air medium coupling with too high a strength, it may affect the operation of other control components in the coil circuit, causing malfunctions, signal interference, etc., and increasing interference at the coil end. Summary of the Invention

[0004] An embodiment of the present disclosure provides a relay, a control device, and a control circuit module that can reduce and shield interference signals input from a load end and conducted to a control circuit of the relay, thereby ensuring normal operation of the relay.

[0005] According to one aspect of the present disclosure, there is provided a relay including a coil and an anti-interference element, wherein the coil is used for electrically connecting to an external control circuit, the anti-interference element is connected to the coil, and when the coil is used for electrically connecting to the external control circuit, the coil and the anti-interference element are connected in series to the external control circuit.

[0006] According to some embodiments of the present disclosure, the anti-interference element is at least one of a magnetic bead and an inductor.

[0007] According to some embodiments of the present disclosure, the relay includes a coil bobbin, a first connecting member, and a second connecting member, wherein the coil is wound around the coil bobbin, the first connecting member being conductive and disposed on the coil bobbin, the first connecting member having a first end and a second end, the first end being configured to be connected to one pole of a power supply of the external control circuit, the second end being connected to one end of the anti-interference element, the second connecting member being conductive and disposed on the coil bobbin, the second connecting member having a third end and a fourth end, the third end being connected to the other end of the anti-interference element, the fourth end being connected to one end of the coil, and the other end of the coil being configured to be connected to the other pole of the power supply of the external control circuit so as to form a circuit when the coil and the anti-interference element are electrically connected to the external control circuit.

[0008] According to some embodiments of the present disclosure, the relay further includes a third connection member, the third connection member being conductive and disposed on the coil bobbin, the third connection member having a fifth end and a sixth end, the fifth end being connected to the other end of the coil, and the sixth end being configured to be connected to the other pole of the power supply of the external control circuit.

[0009] According to some embodiments of the present disclosure, the coil bobbin includes a winding portion, a first flange portion, and a second flange portion, the first flange portion and the second flange portion being located on either side of the winding portion and protruding outward, the first connection member having a first pull-out pin and a conductive post, the conductive post being vertically connected to one end of the first pull-out pin, a portion of the first connection member being fitted into the first flange portion, the first pull-out pin extending vertically and extending from a bottom of the first flange portion, the conductive post extending in a first horizontal direction and extending from a side surface of the first flange portion, the portion of the first pull-out pin extending from the first flange portion being the first end of the first connection member, and the portion of the conductive post extending from the first flange portion being the second end of the first connection member.

[0010] According to some embodiments of the present disclosure, the second connecting member has a U-shape in which a first connecting portion, a second connecting portion, and a third connecting portion are connected in sequence, at least the second connecting portion is fitted into the first flange portion of the coil bobbin, the first connecting portion and the third connecting portion both extend in the first horizontal direction and extend from the side of the first flange portion, the portion of the first connecting portion extending from the first flange portion is the third end of the second connecting member, and the portion of the third connecting portion extending from the first flange portion is the fourth end of the second connecting member.

[0011] According to some embodiments of the present disclosure, the first connection member and the second connection member are located on the same side of the first flange portion, and the first connection portion, the third connection portion, and the conductive post are spaced apart in a second horizontal direction.

[0012] According to some embodiments of the present disclosure, a groove is provided on an edge of the first flange portion corresponding to the third connection portion, the third connection portion extends from the groove, the third connection portion has toughness, and is configured to be bendable so as to extend in the vertical direction after the third connection portion is connected to one end of the coil.

[0013] According to some embodiments of the present disclosure, the anti-interference element may further include a circuit board, the circuit board having a first through hole and a second through hole, the second end of the first connecting member being drilled through the first through hole and extending from the circuit board, and the third end of the second connecting member being drilled through the second through hole and extending from the circuit board.

[0014] According to one aspect of the present disclosure, according to some embodiments of the present disclosure, the number of the anti-interference elements is one or more.

[0015] According to an embodiment of the present disclosure, there is further provided a control device including a control circuit and a relay, wherein the relay includes a coil and an anti-interference element, and the anti-interference element and the coil are connected in series to the control circuit.

[0016] According to an embodiment of the present disclosure, there is further provided a control circuit module for controlling an electronic component, the control circuit module including a control circuit and an anti-interference element, the control circuit being adapted to be electrically connected to the electronic component, and the anti-interference element being electrically connected to the control circuit and adapted to be connected in series with the electronic component.

[0017] According to some embodiments of the present disclosure, the electronic component is a relay, and the control circuit is adapted to be electrically connected to a coil of the relay.

[0018] As can be seen from the above technical solutions, the present disclosure has at least one of the following advantages and positive effects: In the embodiment of the present disclosure, when the relay is operating, the anti-interference element and the coil are connected in series in the external control circuit, so that interference signals of different frequencies input from the load end and conducted to the coil can be significantly reduced and shielded, and the normal operation of the relay can be ensured.

[0019] According to another aspect of the present disclosure, there is provided a relay including a coil, an anti-interference element, and a capacitor, wherein the anti-interference element is connected in series with the coil to form a series connection assembly for electrical connection to an external control circuit, and a capacitor is connected to the series connection assembly, and the capacitor is not connected in series with the series connection assembly when the series connection assembly is used to electrically connect to the external control circuit.

[0020] According to some embodiments of the present disclosure, one end of the capacitor is connected to the series connection assembly and the other end is grounded.

[0021] According to some embodiments of the present disclosure, the capacitor is connected in parallel with at least one of the coil and the anti-interference element.

[0022] According to some embodiments of the present disclosure, the anti-interference element is at least one of a magnetic bead and an inductor.

[0023] According to some embodiments of the present disclosure, the relay includes a coil bobbin, a first connecting member, and a second connecting member, wherein the coil is wound around the coil bobbin, the first connecting member being conductive and disposed on the coil bobbin, the first connecting member having a first end and a second end, the first end being configured to be connected to one pole of a power supply of the external control circuit, the second end being connected to one end of the anti-interference element, the second connecting member being conductive and disposed on the coil bobbin, the second connecting member having a third end and a fourth end, the third end being connected to the other end of the anti-interference element, the fourth end being connected to one end of the coil, and the other end of the coil being configured to be connected to the other pole of the power supply of the external control circuit to form a circuit when the series-connected assembly is electrically connected to the external control circuit.

[0024] According to some embodiments of the present disclosure, the relay further includes a third connection member, the third connection member being conductive and disposed on the coil bobbin, the third connection member having a fifth end and a sixth end, the fifth end being connected to the other end of the coil, and the sixth end being configured to be connected to the other pole of the power supply of the external control circuit.

[0025] According to some embodiments of the present disclosure, the coil bobbin includes a winding portion, a first flange portion, and a second flange portion, the first flange portion and the second flange portion being located on either side of the winding portion and protruding outward, the first connection member having a first pull-out pin and a conductive post, the conductive post being vertically connected to one end of the first pull-out pin, a portion of the first connection member being fitted into the first flange portion, the first pull-out pin extending vertically and extending from a side surface of the first flange portion, the conductive post extending in a first horizontal direction and extending from a side surface of the first flange portion, the portion of the first pull-out pin extending from the first flange portion being the first end of the first connection member, and the portion of the conductive post extending from the first flange portion being the second end of the first connection member.

[0026] According to some embodiments of the present disclosure, the second connecting member has a U-shape in which a first connecting portion, a second connecting portion, and a third connecting portion are connected in sequence, at least the second connecting portion is fitted into the first flange portion of the coil bobbin, the first connecting portion and the third connecting portion both extend in the first horizontal direction and extend from the side of the first flange portion, the portion of the first connecting portion extending from the first flange portion is the third end of the second connecting member, and the portion of the third connecting portion extending from the first flange portion is the fourth end of the second connecting member.

[0027] According to some embodiments of the present disclosure, the first connection member and the second connection member are located on the same side of the first flange portion, and the first connection portion, the third connection portion, and the conductive post are spaced apart in a second horizontal direction.

[0028] According to some embodiments of the present disclosure, a groove is provided on an edge of the first flange portion corresponding to the third connection portion, the third connection portion extends from the groove, the third connection portion has toughness, and is configured to be bendable so as to extend in the vertical direction after the third connection portion is connected to one end of the coil.

[0029] According to some embodiments of the present disclosure, the second end of the first connection member is further connected to one end of the capacitor, and the other end of the capacitor is grounded.

[0030] According to some embodiments of the present disclosure, the relay further includes a yoke base and an extraction member, in which the coil bobbin is disposed, and one end of the extraction member is connected to a side wall of the yoke base and the other end is connected to the other end of the capacitor.

[0031] According to some embodiments of the present disclosure, the yoke base has at least two opposing first side walls, a second side wall, and a bottom wall connected to the first side walls and the second side walls, the first side walls, the second side walls, and the bottom wall form an accommodating space, the coil bobbin is disposed within the accommodating space and on the bottom wall, and the pull-out member has one end connected to the first side wall of the yoke base adjacent to the capacitor and the other end connected to the other end of the capacitor.

[0032] According to some embodiments of the present disclosure, the pull-out member has a first pull-out portion, a second pull-out portion, and a third pull-out portion connected in sequence, the first pull-out portion and the third pull-out portion being located on opposite sides of the second pull-out portion, an accommodating groove being provided in the first side wall of the yoke base, the first pull-out portion being fixedly provided in the accommodating groove, and the third pull-out portion being connected to the capacitor.

[0033] According to some embodiments of the present disclosure, the relay further includes a circuit board, the anti-interference element and the capacitor are provided on the circuit board, the circuit board has a first through hole, a second through hole, and a third through hole, the second end of the first connection member is drilled into the first through hole and extends from the circuit board, and the third drawing portion of the drawing member is drilled into the third through hole and extends from the circuit board.

[0034] According to some embodiments of the present disclosure, the number of the anti-interference elements is one or more, and the number of the capacitors is one or more.

[0035] An embodiment of the present disclosure further provides a control device including a control circuit and a relay, the relay including a coil, an anti-interference element, and a capacitor, the anti-interference element being connected in series with the coil to form a series connection assembly, the series connection assembly being connected to the control circuit, the capacitor being connected to the series connection assembly, and the capacitor and the series connection assembly not being connected in series in the control circuit.

[0036] An embodiment of the present disclosure further provides a control circuit module for controlling an electronic component, the control circuit module including: a control circuit for electrically connecting to the electronic component; an anti-interference element electrically connected to the control circuit for connecting in series with the electronic component; and a capacitor electrically connected to the control circuit, wherein when the control circuit is electrically connected to the electronic component, the capacitor is not connected in series with the electronic component and the anti-interference element.

[0037] According to some embodiments of the present disclosure, the electronic component is a relay, and the control circuit is used to electrically connect to a coil of the relay.

[0038] As can be seen from the above technical solutions, the present disclosure has at least one of the following advantages and positive effects: In the embodiment of the present disclosure, when the relay is operating, the anti-interference element is connected in series with the coil to form a series-connected assembly, which can significantly reduce and shield high-frequency interference signals among the interference signals input from the load end and conducted to the coil; and the capacitor is connected to the series-connected assembly but is not connected in series with the series-connected assembly, which can significantly reduce and shield low-frequency interference signals among the interference signals input from the load end and conducted to the coil, thereby comprehensively shielding interference signals of different frequencies and ensuring the normal operation of the relay.

[0039] According to another aspect of the present disclosure, there is provided a relay including a coil and a capacitor, wherein the coil is adapted to electrically connect to an external control circuit, the capacitor is connected to the coil, and the capacitor is not connected in series with the coil when the coil is adapted to electrically connect to the external control circuit.

[0040] According to some embodiments of the present disclosure, one end of the capacitor is connected to the coil and the other end is grounded.

[0041] According to some embodiments of the present disclosure, the capacitor is connected in parallel with the coil.

[0042] According to some embodiments of the present disclosure, the relay includes a coil bobbin, a first connecting member, and a second connecting member, wherein the coil is wound around the coil bobbin, the first connecting member is conductive and is disposed on the coil bobbin, the first connecting member has a first end and a second end, the first end is configured to be connected to one pole of a power supply of the external control circuit, the second end is connected to one end of the anti-interference element, the second connecting member is conductive and is disposed on the coil bobbin, the second connecting member has a third end and a fourth end, the third end is connected to the second end of the first connecting member, the fourth end is connected to one end of the coil, and the other end of the coil is used to connect to the other pole of the power supply of the external control circuit to form a circuit when the coil is electrically connected to the external control circuit.

[0043] According to some embodiments of the present disclosure, the relay further includes a third connection member, the third connection member being conductive and disposed on the coil bobbin, the third connection member having a fifth end and a sixth end, the fifth end being connected to the other end of the coil, and the sixth end being configured to be connected to the other pole of the power supply of the external control circuit.

[0044] According to some embodiments of the present disclosure, the coil bobbin includes a winding portion, a first flange portion, and a second flange portion, the first flange portion and the second flange portion being located on either side of the winding portion and protruding outward, the first connection member having a first pull-out pin and a conductive post, the conductive post being vertically connected to one end of the first pull-out pin, a portion of the first connection member being fitted into the first flange portion, the first pull-out pin extending vertically and extending from a bottom portion of the first flange portion, the conductive post extending in a first horizontal direction and extending from a side surface of the first flange portion, the portion of the first pull-out pin extending from the first flange portion being the first end of the first connection member, and the portion of the conductive post extending from the first flange portion being the second end of the first connection member.

[0045] According to some embodiments of the present disclosure, the second connecting member has a U-shape in which a first connecting portion, a second connecting portion, and a third connecting portion are connected in sequence, at least the second connecting portion is fitted into the first flange portion of the coil bobbin, the first connecting portion and the third connecting portion both extend in the first horizontal direction and extend from the side of the first flange portion, the portion of the first connecting portion extending from the first flange portion is the third end of the second connecting member, and the portion of the third connecting portion extending from the first flange portion is the fourth end of the second connecting member.

[0046] According to some embodiments of the present disclosure, a groove is provided on an edge of the first flange portion corresponding to the third connection portion, the third connection portion extends from the groove, the third connection portion has toughness, and is configured to be bendable so as to extend in the vertical direction after the third connection portion is connected to one end of the coil.

[0047] According to some embodiments of the present disclosure, the first connection member and the second connection member are located on the same side of the first flange portion, and the first connection portion, the third connection portion, and the conductive post are spaced apart in a second horizontal direction.

[0048] According to some embodiments of the present disclosure, the relay further includes a yoke base and an extraction member, in which the coil bobbin is disposed, and one end of the extraction member is connected to a side wall of the yoke base and the other end is connected to the other end of the capacitor.

[0049] According to some embodiments of the present disclosure, the yoke base has at least two opposing first side walls, a second side wall, and a bottom wall connected to the first side walls and the second side walls, the first side walls, the second side walls, and the bottom wall form an accommodating space, the coil bobbin is disposed in the accommodating space and on the bottom wall, and one end of the pull-out member is connected to the first side wall adjacent to the capacitor.

[0050] According to some embodiments of the present disclosure, the pull-out member has a first pull-out portion, a second pull-out portion, and a third pull-out portion connected in sequence, the first pull-out portion and the third pull-out portion being located on opposite sides of the second pull-out portion, an accommodating groove being provided in the first side wall of the yoke base, the first pull-out portion being fixedly provided in the accommodating groove, and the third pull-out portion being connected to the capacitor.

[0051] According to some embodiments of the present disclosure, the relay further includes a circuit board, the capacitor is provided on the circuit board, the circuit board has a first through hole, a second through hole, and a third through hole, the second end of the first connecting member is drilled into the first through hole and extends from the circuit board, the third end of the second connecting member is drilled into the second through hole and extends from the circuit board, and the third drawing portion of the drawing member is drilled into the third through hole and extends from the circuit board.

[0052] According to some embodiments of the present disclosure, the number of capacitors is one or more.

[0053] An embodiment of the present disclosure further provides a control device including a control circuit and a relay, the relay including a coil and a capacitor, the coil electrically connected to the control circuit, the capacitor connected to the coil, and the capacitor and the coil not connected in series in the control circuit.

[0054] According to an embodiment of the present disclosure, there is further provided a control circuit module for controlling an electronic component, the control circuit module including a control circuit and a capacitor, the control circuit being used for electrically connecting to the electronic component, the capacitor being electrically connected to the control circuit, and the capacitor not being connected in series with the electronic component when the control circuit is electrically connected to the electronic component.

[0055] According to some embodiments of the present disclosure, the electronic component is a relay, and the control circuit is used to electrically connect to a coil of the relay.

[0056] As can be seen from the above technical solutions, the present disclosure has at least one of the following advantages and positive effects: In the embodiment of the present disclosure, when the relay operates, the coil is electrically connected to an external control circuit, and the capacitor is connected to the coil, but the capacitor is not connected in series with the coil, i.e., the capacitor is also electrically connected to the control circuit, so that interference signals of different frequencies input from the load end and conducted to the coil can be significantly reduced and shielded, and the normal operation of the relay can be ensured. [Brief explanation of the drawings]

[0057] The foregoing and other features and advantages of the present disclosure will become more apparent from the detailed description of illustrative embodiments thereof, taken in conjunction with the accompanying drawings. [Figure 1] FIG. 1 is a schematic diagram of a circuit when a relay shown in some embodiments of the present disclosure is in an actuated state. [Figure 2] FIG. 1 is a three-dimensional schematic diagram of a relay (housing omitted) shown in some embodiments of the present disclosure. [Figure 3] FIG. 3 is an enlarged view of a portion C in FIG. 2. [Figure 4] FIG. 1 is a top view of a relay shown in some embodiments of the present disclosure. [Figure 5] FIG. 5 is a cross-sectional view taken along the line AA in FIG. [Figure 6] FIG. 1 is a front view of a relay shown in some embodiments of the present disclosure. [Figure 7] FIG. 1 is a schematic side view of a relay shown in some embodiments of the present disclosure. [Figure 8] 2A and 2B are schematic diagrams illustrating the structures of a coil bobbin, a first connecting member, a second connecting member, and a third connecting member shown in some embodiments of the present disclosure. [Figure 9] FIG. 9 is a cross-sectional view taken along the line BB in FIG. 8. [Figure 10] 2A and 2B are schematic diagrams illustrating the structure of a first connecting member shown in some embodiments of the present disclosure. [Figure 11] 3A and 3B are schematic diagrams illustrating the structure of a second connecting member shown in some embodiments of the present disclosure. [Figure 12] FIG. 1 is a schematic diagram of an anti-interference element disposed on a circuit board, as shown in some embodiments of the present disclosure. [Figure 13] FIG. 1 is a schematic diagram of a control device shown in some embodiments of the present disclosure. [Figure 14] FIG. 2 is a schematic diagram of a control circuit module shown in some embodiments of the present disclosure. [Figure 15] FIG. 1 is a schematic diagram of a circuit when a relay shown in some embodiments of the present disclosure is in an actuated state. [Figure 16] FIG. 1 is a three-dimensional schematic diagram of a relay (housing omitted) shown in some embodiments of the present disclosure. [Figure 17] FIG. 17 is an enlarged view of a portion E in FIG. [Figure 18] FIG. 1 is a top view of a relay shown in some embodiments of the present disclosure. [Figure 19] FIG. 19 is a cross-sectional view taken along the line DD in FIG. 18. [Figure 20] FIG. 1 is a front view of a relay shown in some embodiments of the present disclosure. [Figure 21] FIG. 1 is a schematic side view of a relay shown in some embodiments of the present disclosure. [Figure 22] FIG. 1 is a schematic diagram of a drawer member structure shown in some embodiments of the present disclosure. [Figure 23] FIG. 10 is a schematic diagram of a structure in which a pull-out member is disposed on a yoke base, as shown in some embodiments of the present disclosure. [Figure 24] FIG. 10 is a schematic side view of a pull-out member disposed on a yoke base, as shown in some embodiments of the present disclosure. [Figure 25] FIG. 1 is a schematic diagram of an anti-interference element and a capacitor provided on a circuit board, as shown in some embodiments of the present disclosure. [Figure 26] FIG. 1 is a schematic diagram of a control device shown in some embodiments of the present disclosure. [Figure 27] FIG. 2 is a schematic diagram of a control circuit module shown in some embodiments of the present disclosure. [Figure 28] FIG. 1 is a schematic diagram of a circuit when a relay shown in some embodiments of the present disclosure is in an actuated state. [Figure 29] FIG. 1 is a three-dimensional schematic diagram of a relay (housing omitted) shown in some embodiments of the present disclosure. [Figure 30] FIG. 30 is an enlarged view of a portion F in FIG. 29. [Figure 31] FIG. 1 is a front view of a relay shown in some embodiments of the present disclosure. [Figure 32] FIG. 1 is a schematic diagram of a capacitor disposed on a circuit board, as shown in some embodiments of the present disclosure. [Figure 33] FIG. 1 is a schematic diagram of a control device shown in some embodiments of the present disclosure. [Figure 34]1 is a schematic diagram of a control circuit module shown in some embodiments of the present disclosure. [Explanation of symbols] 1, magnetic circuit unit, 11, coil, 12, coil bobbin, 121, first flange portion, 1211, groove, 122, winding portion, 123, second flange portion, 13, push rod assembly, 131, push rod, 132, support seat, 133, first spring, 14, fixed iron core, 15, movable iron core, 16, second spring, 2, contact unit, 21, fixed contact lead end, 22, movable contact, 23, insulating cover, 24, frame member, 25, yoke plate, 26, accommodating cavity, 3, arc-extinguishing unit, 31, arc-extinguishing magnet, 32, yoke clamp, 4, control Control circuit module, 41, control circuit, 42, anti-interference element, 43, capacitor, 44, resistor, 51, first connecting member, 511, first lead-out pin, 512, conductive post, 52, second connecting member, 521, first connecting member, 522, second connecting portion, 523, third connecting portion, 53, third connecting member, 531, second lead-out pin, 532, winding post, 54, circuit board, 541, first through hole, 542, second through hole, 6, yoke base, 61, first side wall, 62, second side wall, 63, bottom wall, X, first horizontal direction, Y, second horizontal direction, Z, vertical direction. DETAILED DESCRIPTION OF THE INVENTION

[0058] Next, exemplary embodiments will be described more fully with reference to the drawings. However, exemplary embodiments may be implemented in various forms and should not be understood as being limited to the embodiments set forth herein. Rather, these embodiments are provided so as to comprehensively and completely convey the concept of exemplary embodiments to those skilled in the art. In the drawings, the same reference numerals indicate the same or similar structures, and detailed descriptions thereof will be omitted.

[0059] A relay is generally an electronic control device used to control the on / off of an external high-voltage load circuit. When the relay is operating, an external control circuit is connected to both ends of the coil to energize the coil; this external control circuit is sometimes called a low-voltage control circuit or a coil end control circuit. Low voltage and high voltage are relative terms, and a relay can be understood as a type of "automatic switch" that controls large currents with small currents, and plays a role in automatic load circuit adjustment, safety protection, circuit conversion, etc.

[0060] High-voltage DC relays are relays capable of handling large amounts of power. Compared to conventional relays, they are more reliable and have a longer service life under harsh conditions such as high voltages and currents, and are therefore widely used in a variety of fields.

[0061] Taking high-voltage DC relays used in new energy vehicles as an example, the driving range requirements for new energy vehicles are constantly increasing, leading to ever-increasing battery capacities and ever-increasing demands for rapid cruising, emergency braking, and 100-kilometer acceleration. To meet these demands, the current frequency supplied from the battery is constantly increasing, and the current frequency range of the input load is also expanding. For example, when signals with different frequencies from 15 kHz to 120 MHz are input to the load end, the frequency range is expanded, generating interference signals of different frequencies, such as low-frequency and high-frequency interference signals. These interference signals are transmitted to the low-voltage control circuit of the relay, e.g., the coil, via magnetic conductive elements or air-medium coupling, causing electromagnetic interference in the low-voltage control circuit. In particular, when a high-frequency signal is input to the load end, an excessively strong signal is transmitted to the control circuit at the coil end, which further affects the operation of other components in the control circuit at the coil end, causing malfunctions and preventing the relay from operating normally. However, the above problem has not been effectively solved in the related art.

[0062] Based on this, an embodiment of the present disclosure provides a relay. As shown in Figures 2 and 4 to 7, Figure 2 shows a schematic perspective view of the relay of the embodiment of the present disclosure, with the housing omitted. Figure 4 shows a schematic top view of Figure 2, Figure 5 shows a cross-sectional view along AA in Figure 4, Figure 6 shows a schematic front view of the relay, and Figure 7 shows a schematic side view of the relay.

[0063] For ease of explanation, as shown in Figure 2, the height direction of the relay is defined as the vertical direction Z, the length direction of the relay as the first horizontal direction X, and the width direction of the relay as the second horizontal direction Y, based on the assembled relay. The vertical direction Z, the first horizontal direction X, and the second horizontal direction Y may be perpendicular to each other, and the first horizontal direction X and the second horizontal direction Y may be located on the same plane. These directions are used merely to facilitate explanation of the relay structure and are not limiting.

[0064] The relay of the embodiment of the present disclosure includes a housing (not shown), a magnetic circuit unit 1, a contact unit 2, and an arc-extinguishing unit 3.

[0065] 5, the contact unit 2 includes two fixed contact lead-out ends 21, a movable contact 22, an insulating cover 23, a frame member 24, and a yoke plate 25. The insulating cover 23, the frame member 24, and the yoke plate 25 are assembled to form an accommodating cavity 26, and the upper part of the insulating cover 23 is provided with two through holes, and the two fixed contact lead-out ends 21 are respectively drilled in the two through holes, and the lower parts of the two fixed contact lead-out ends 21 are located within the accommodating cavity 26.

[0066] Continuing to refer to FIG. 5 , the movable contact 22 is supported by the push rod assembly 13 in the magnetic circuit unit 1 within the receiving cavity 26 and is positioned below the two fixed contact leads 21. Both ends of the movable contact 22 can be movable contacts, and the two movable contacts are used to contact the bottoms of the two fixed contact leads 21 to achieve contact closure. The tops of the two fixed contact leads 21 are connected to an external load circuit. When the movable contact and the two fixed contact leads 21 are closed, current from the load circuit flows in from one fixed contact lead 21, passes through the movable contact 22, and flows out from the other fixed contact lead 21, switching on the external load circuit. When the movable contact is separated from the two fixed contact leads 21, the load circuit is switched off.

[0067] In the embodiment of the present disclosure, the closing and separation of the movable contact and the two fixed contact lead-out ends 21 is achieved by driving the movable contactor 22 by the movement of the push rod assembly 13 in the magnetic circuit unit 1.

[0068] Specifically, with continued reference to Figure 5, the magnetic circuit unit 1 includes a coil 11 and a hollow cylindrical coil bobbin 12 made of an insulating material. The coil 11 is wound around the coil bobbin 12. The magnetic circuit unit 1 further includes a push rod assembly 13, which includes a push rod 131, a support seat 132, and a first spring 133.

[0069] Here, the push rod 131 is arranged axially movably within the coil bobbin 12, the yoke plate 25, and the accommodating cavity 26. The first spring 133 is arranged at one end of the push rod 131 located within the accommodating cavity 26, the support seat 132 is arranged at one end of the push rod 132 axially adjacent to the movable contact 22, at least a portion of the support seat 132 is located within the accommodating cavity 26, and one end of the first spring 133 remote from the movable contact 22 abuts against the support seat 132, the first spring 133 is used to apply an elastic force to the movable contact 22 to move toward the fixed contact pull-out end 21, and after the fixed contact pull-out end 21 contacts the movable contact 22, the first spring 133 continues to be compressed to provide overtravel.

[0070] The magnetic circuit unit 1 further includes a fixed core 14, a movable core 15, and a second spring 16. The fixed core 14 is mounted on the coil bobbin 12 and fixedly connected to the yoke plate 25. A push rod 131 is movably inserted through the fixed core 14. The movable core 15 is movably mounted within the coil bobbin 12 and positioned opposite the fixed core 14. The movable core 15 is connected to one end of the push rod 131 located within the coil bobbin 12. When current is applied to the coil 11, a magnetic field is generated, causing the fixed core 14 to attract the movable core 15, which drives the push rod 131 to move toward the fixed contact lead-out end 21, bringing the movable contact 22 into contact with the fixed contact lead-out end 21 and switching on an external load circuit. The second spring 16 is mounted between the fixed core 14 and the movable core 15 and is sleeved around the push rod 131. When the movable core 15 moves in the direction approaching the fixed contact lead-out end 21, the second spring 16 is compressed, and when the coil 11 is de-energized, the magnetic field disappears, the movable core 15 is no longer attracted to the fixed core 14, and the second spring 16 applies an elastic force in the opposite direction to the movable core 15, causing the movable core 15 to be rapidly reset, and the movable contact 22 to move away from the fixed contact lead-out end 21, thereby switching off the external load circuit.

[0071] As shown in FIG. 5 , the relay further includes a yoke base 6. The yoke base 6 has at least two opposing first and second side walls 61 and 62, and a bottom wall 63 connected to one end of the first and second side walls 61 and 62. The first and second side walls 61, 62, and bottom wall 63 form an accommodation space, and the coil bobbin 12 is provided in the accommodation space and disposed on the bottom wall 63. The yoke base 6 and yoke plate 25 surround the space in which the magnetic circuit unit 1 is accommodated. When a magnetic field is generated by energizing the coil 11, the yoke base 6 blocks the magnetic field from spreading outward, thereby improving the utilization efficiency of the magnetic field.

[0072] Therefore, whether the coil 11 is energized or not determines whether the external load circuit is switched on or off. As shown in Fig. 1, when the relay in the embodiment of the present disclosure is in an operating state, it is connected to an external control circuit 41, and this control circuit 41 supplies current to the coil 11, so this control circuit 41 plays an important role in the normal operation of the relay. This control circuit 41 is the coil end control circuit, i.e., the low-voltage control circuit, described in the above embodiment. Here, the term "external" in the external control circuit 41 can be understood to mean that it is not included in the relay.

[0073] As shown in FIG. 1 , when the movable contact 22 in the embodiment of the present disclosure is closed with the fixed contact lead-out end 21, the movable contact 22 actually functions as a part of the external load circuit and performs a conductive function. The current of the load circuit flows in from one fixed contact lead-out end 21, passes through the movable contact 22, and then flows out from the other fixed contact. However, due to the load requirements, the voltage of the external load circuit is much higher than the voltage of the control circuit 41, and signals of different frequencies are input to the external load circuit. As can be seen from FIG. 1 , these signals of different frequencies are conducted to the control circuit 41 via magnetically conductive elements (e.g., the movable contact 22, the fixed iron core 14, the movable iron core 15, etc.), affecting the normal operation of the control circuit 41. If the control circuit 41 becomes unstable, this will further affect whether the movable contact 22 can accurately contact and separate from the fixed contact lead-out end 21.

[0074] In light of this, as shown in FIG. 1 , the relay according to the embodiment of the present disclosure further includes an anti-interference element 42 connected to the coil 11, and when the coil 11 is electrically connected to an external control circuit 41, the coil 11 and the anti-interference element 42 are connected in series to the external control circuit 41.

[0075] 1, an external control circuit 41 includes a power supply, a resistor 44 (which may be an electronic component), a switch (not shown), and wires to form a circuit. When the relay is in an operating state, both ends of the coil 11 are connected to this external control circuit 41 so that the coil 11 is connected in series with the resistor 44. An anti-interference element 42 is connected to this control circuit 41 in series with the coil 11 and the resistor 44.

[0076] In some embodiments, the interference prevention element 42 is at least one of a magnetic bead and an inductor. Here, the magnetic bead is composed of an oxygen magnet, the inductor is composed of a magnetic core and a coil, the magnetic bead converts AC signals into thermal energy, and the inductor stores and slowly releases AC. The magnetic bead is mainly used to suppress electromagnetic radiation interference, while the inductor focuses on suppressing conductive interference. Both can suppress high-frequency noise and spike interference and absorb or shield interference signals of various frequencies.

[0077] Depending on the strength and type of the interference signal, magnetic beads, inductors, or both magnetic beads and inductors may be selected as the interference prevention element 42. Those skilled in the art can select the specifications of the magnetic beads and inductors according to the specific circumstances of the interference signal, and no particular limitations are placed here.

[0078] In an embodiment of the present disclosure, a magnetic bead and / or inductor is provided in the relay and connected in series with the coil 11. When the relay operates, the anti-interference element and the coil are connected in series with the external control circuit, which can shield interference signals conducted from the external load circuit to the control circuit 41, preventing the interference signals received by the control circuit 41 from being too strong and affecting the normal operation of the components in the control circuit 41, ensuring the normal use of the relay. At the same time, when the relay operates, this anti-interference element 42 is actually connected in series with the control circuit 41, so it does not directly absorb or shield signals from the external load circuit, ensuring the normal operation of the load circuit.

[0079] 8 to 11, the relay further includes a first connecting member 51 and a second connecting member 52 for connecting the interference prevention element 42 to an external control circuit 41. Here, FIG. 8 is a schematic diagram showing a three-dimensional structure in which the first connecting member 51 and the second connecting member 52 are arranged on the coil bobbin 12, and FIG. 9 is a cross-sectional view taken along line BB in FIG. 8 showing the positional relationship between the first connecting member 51 and the second connecting member 52. Also, FIG. 10 is a schematic diagram showing the three-dimensional structure of the first connecting member 51, and FIG. 11 is a schematic diagram showing the three-dimensional structure of the second connecting member 52.

[0080] 8 to 10, the first connecting member 51 is electrically conductive and is provided on the coil bobbin 12. The first connecting member 51 has a first end and a second end, the first end being connected to one pole of the power supply of the external control circuit 41, and the second end being connected to one end of the anti-interference element 42. The second connecting member 52 is electrically conductive and is provided on the coil bobbin 12. The second connecting member 52 has a third end and a fourth end, the third end being connected to the other end of the anti-interference element 42, and the fourth end being connected to one end of the coil 11. The other end of the coil 11 is used to connect to the other pole of the power supply of the external control circuit 41, and a circuit is formed when the coil 11 and the anti-interference element 42 are connected to the external control circuit.

[0081] In some embodiments, as shown in FIG. 8, the coil bobbin 12 includes a first flange portion 121, a winding portion 122, and a second flange portion 123, and the first flange portion 121 and the second flange portion 123 are located on either side of the winding portion 122 and protrude outward.

[0082] Here, winding portion 122 may be a hollow cylinder extending in the vertical direction Z, and first flange portion 121 and second flange portion 123 are located on opposite sides of winding portion 122 in the vertical direction Z. The fact that first flange portion 121 and second flange portion 123 are located on opposite sides of winding portion 122 and protrude outward can be understood as first flange portion 121 and second flange portion 123 each extending in a direction away from winding portion 122 along the radial direction of winding portion 122.

[0083] As shown in Figures 8 and 10, the first connection member 51 has a first pull-out pin 511 and a conductive post 512, and the conductive post 512 is vertically connected to one end of the first pull-out pin 511. A portion of the first connection member 51 is fitted into the first flange portion 121, and the first pull-out pin 511 extends in the vertical direction Z and extends from the bottom of the first flange portion 121. The conductive post 512 extends in the first horizontal direction X and extends from the side of the first flange portion 121.

[0084] Specifically, in some embodiments, as shown in FIG. 10 , the first pull-out pin 511 has a sheet shape for connection to the control circuit 41. The conductive post 512 is disposed at one end of the first pull-out pin portion 511 and is perpendicular to the first pull-out pin portion 511. The conductive post 512 and the first pull-out pin portion 511 may be integrally formed. The conductive post 512 is used to electrically connect to one end of the anti-interference element 42. In some embodiments, the width of the conductive post 512 is smaller than the width of the first pull-out pin 511. Referring to FIG. 9 , the width of the conductive post 512 is the dimension of the conductive post 512 along the second horizontal direction Y, and the width of the first pull-out pin 511 is the dimension of the first pull-out pin 511 along the second horizontal direction Y. Setting the width of the conductive post 512 smaller than the width of the first pull-out pin portion 511 facilitates wiring and saves space and materials.

[0085] Here, the portion of the first pull-out pin 511 extending from the first flange portion 121 is the first end of the first connecting member 51 for connecting to the control circuit 41, and the portion of the conductive post 512 extending from the first flange portion 121 is the second end of the first connecting member 51 for connecting to one end of the interference prevention element 42.

[0086] In some embodiments, as shown in FIGS. 8 to 9 and 11 , the second connecting member 52 has a generally U-shape having a first connecting portion 521, a second connecting portion 522, and a third connecting portion 523 connected in sequence, and at least the second connecting portion 522 is fitted into the first flange portion 121 of the coil bobbin 12 and extends in the first horizontal direction X together with the first connecting portion 521 and the third connecting portion 523 and extends from the side of the first flange portion 121.

[0087] 11, the second connecting member 52 has a generally U-shape, and the length of the first connecting portion 521 is shorter than the length of the third connecting portion 523. Referring to FIG. 9, the length of the first connecting portion 521 is the dimension of the first connecting portion 521 along the first horizontal direction X, and the length of the third connecting portion 523 is the dimension of the third connecting portion 523 along the first horizontal direction X. Here, the third connecting portion 523 has a tooth-like shape on opposite sides along the second horizontal direction Y, which facilitates winding one end of the coil 11 around the third connecting portion 523 and prevents it from easily slipping off.

[0088] In some embodiments, the portion of the first connecting portion 521 extending from the first flange portion 121 is a third end of the second connecting member 52 for connecting to the other end of the anti-interference element 42, and the portion of the third connecting portion 523 extending from the first flange portion 121 is a fourth end of the second connecting member 52 for connecting to one end of the coil 11.

[0089] In some embodiments, as shown in Figures 8 and 9, the first connecting member 51 and the second connecting member 52 are located on the same side of the first flange portion 121, and the first connecting portion 521, the third connecting portion 523 of the second connecting member 52 and the conductive post 512 of the first connecting member 51 are arranged at intervals in the second horizontal direction Y.

[0090] Specifically, the first connecting member 51 and the second connecting member 52 are disposed adjacent to each other, and in some embodiments, as shown in FIG. 9 , the projections of the first pull-out pin 511 of the first connecting member 51 and the second connecting portion 522 of the second connecting member 52 in the first horizontal direction X at least partially overlap, thereby reducing the distance in the second horizontal direction Y between the first connecting portion 521 of the first connecting member 51 and the conductive post 512 of the second connecting member 52, thereby reducing the space occupied by the portion of the control circuit 41 connecting the anti-interference element 42 and making the relay more compact.

[0091] 8 and 9, in some embodiments, a recessed groove 1211 is provided in an edge portion of the first flange portion 121 corresponding to the third connecting portion 523, and the third connecting portion 523 extends from the recessed groove 1211. The third connecting portion 523 has toughness, and is configured to be bendable so as to extend in the vertical direction Z after the third connecting portion 523 is connected to one end of the coil 11. In other words, by winding one end of the coil 11 around the third connecting portion 523, it is possible to facilitate electrical connection between the coil 11 and the control circuit 41 and to facilitate storage of the end of the coil 11.

[0092] In some embodiments, as shown in Figures 8 and 9, the relay further includes a third connection portion 53, which is conductive and provided on the coil bobbin 12, and which has a fifth end and a sixth end, the fifth end being connected to the other end of the coil 11 and the sixth end being used to be connected to the other pole of the external power supply of the control circuit 41.

[0093] Specifically, as shown in FIG. 8 , the third connecting member 53 includes a second pull-out pin 531 and a winding post 532, the winding post 532 is vertically connected to one end of the second pull-out pin 531, a portion of the third connecting member 53 is fitted into the first flange portion 121 of the coil bobbin 12, the second pull-out pin 531 extends in the vertical direction Z and extends out from the bottom of the first flange portion 121, and the winding portion 122 extends in the first horizontal direction X and extends out from the bottom of the first flange portion 121.

[0094] Specifically, in some embodiments, as shown in FIG. 8 , the second pull-out pin 531 has a sheet shape for connection to the external control circuit 41, and corresponds to the sixth end of the third connecting member 53. The second pull-out pin 531 may have the same structure as the first pull-out pin 511. The winding post 532 is one end of the second pull-out pin 531 and is located perpendicular to the second pull-out pin portion 531, and the winding post 532 and the second pull-out pin 531 may be integrally formed. Opposite sides of the winding post 532 along the second horizontal direction Y may be tooth-shaped, and the winding post 532 is used to connect to the other end of the coil 11. That is, by winding the other end of the coil 11 around the winding post 532, electrical connection between the coil 11 and the external control circuit 41 and storage of the other end of the coil 11 are facilitated. The winding post 532 corresponds to the fifth end of the third connecting member 53 .

[0095] In this way, as shown in FIGS. 1 to 3, when the relay is in an operating state, assuming that the first lead-out pin 511 and the second lead-out pin 531 are connected to the control circuit 41 and the second lead-out pin 531 is connected to the positive electrode of the power supply for the control circuit 41, current flows sequentially through the second lead-out pin 531 of the third connecting member 53, the winding post 532, the coil 11, the third connecting portion 523 of the second connecting member 52, the second connecting portion 522, the first connecting portion 521, the anti-interference element 42, and the conductive post 512 of the first connecting member 51, before flowing back from the first lead-out pin 511 of the first connecting member 51 to the negative electrode of the power supply for the control circuit 41.

[0096] After the interference signal from the load circuit is transmitted to the control circuit 41, the interference signal flows through the anti-interference element 42 and is then absorbed or shielded, so that the interference signal does not interfere with the normal operation of the control circuit 41, ensuring the stability of the control circuit 41 and ensuring that the relay can operate normally.

[0097] In some embodiments, the first connecting member 51, the second connecting member 52, and the third connecting member 53 may also be arranged on the second flange portion 123 of the coil bobbin 12, and this can be determined by a person skilled in the art according to the actual situation, and is not particularly limited here.

[0098] As shown in FIGS. 3, 6, and 12, the relay of the embodiment of the present disclosure includes a printed circuit board 54 ( The anti-interference element 42 is disposed on the circuit board 54. The circuit board 54 has a first through-hole 541 and a second through-hole 542, with a second end (conductive post 512) of the first connecting member 51 drilled in the first through-hole 541 and extending out from the circuit board 54, and a third end (first connecting portion 521) of the second connecting member 52 drilled in the second through-hole 542 and extending out from the circuit board 54.

[0099] Specifically, the anti-interference element 42 may be fixed to one surface of the circuit board 54 by welding, or this welding may be soldering. Of course, the anti-interference element 42 may be fixed by other connection means such as screw connection or adhesive, and this is not particularly limited here.

[0100] In some embodiments, the circuit board 54 is welded to the conductive posts 512 of the first connecting member 51 and the first connecting portions 521 of the second connecting member 52, and the first connecting member 51 and the second connecting member 52 are fixedly connected to the coil bobbin 12 (for example, are integrally formed with the coil bobbin 12), thereby fixing the circuit board 54. Of course, the circuit board 54 may be fixedly connected by other methods, and those skilled in the art can set this method depending on the position and connection relationship of the circuit board 54, so there are no particular limitations here.

[0101] Furthermore, the circuit board 54 may be provided externally, such as on the outer surface of the relay housing (not shown in the drawings), or may be provided internally in the housing, and is not particularly limited here.

[0102] 2, the anti-interference element 42 is disposed on the surface of the circuit board 54 away from the coil bobbin 12, and is disposed between the first through hole 541 and the second through hole 542. The first through hole 541 of the circuit board 54 corresponds to the conductive post 512 of the first connecting member 51, and the conductive post 512 is drilled in the first through hole 541 and extends from the first through hole 541. The second through hole 542 corresponds to the first connecting portion 521 of the second connecting member 52, and the first connecting portion 521 is drilled in the second through hole 542 and extends from the second through hole 542. Thus, the anti-interference element 42 is disposed between the conductive post 512 of the first connecting member 51 and the first connecting portion 521 of the second connecting member 52, facilitating electrical connection among the three.

[0103] By providing the circuit board 54, the anti-interference elements 42 can be integrated into a module (for example, when there are multiple anti-interference elements 42), which makes the structure compact and makes it easier to install the anti-interference elements 42, simplifying the installation process.

[0104] In some embodiments, to further facilitate installation, the dimensions of the conductive post 512 of the first connecting member 51 extending from the first flange portion 121 are the same as the first connecting portion 521 of the second connecting member 52 extending from the first flange portion 121.

[0105] In some embodiments, the coil 11 has an input end and an output end, and the anti-interference element 42 is located downstream of the output end in the control circuit 41 when the relay is operating. That is, the current in the control circuit 41 flows first through the coil 11 and then through the anti-interference element 42.

[0106] Of course, in other embodiments, the anti-interference element 42 may also be located upstream of the input end of the coil 11 in the control circuit 41. That is, the current in the control circuit 41 flows first through the anti-interference element 42 and then through the coil 11.

[0107] In some embodiments, the number of anti-interference elements 42 is one or more, for example, the anti-interference element 42 is one magnetic bead or one inductor, the anti-interference element 42 may also have both a magnetic bead and an inductor, or the anti-interference element 42 may also have both multiple magnetic beads and multiple inductors, and those skilled in the art can select the anti-interference element 42 according to the strength of the interference signal in the actual situation, and there is no particular limitation here.

[0108] In summary, in this embodiment of the present disclosure, when the relay operates, the anti-interference element 42 and the coil 11 are connected in series with the external control circuit 41, which can significantly reduce and shield interference signals of different frequencies conducted from the external load circuit to the control circuit 41 connected to the relay, avoiding the normal operation of the components in the control circuit 41 from being affected by overly strong interference signals received and ensuring the normal operation of the relay. At the same time, when the relay operates, this anti-interference element 42 is actually connected in series with the control circuit 41 and does not directly absorb or shield signals from the external load circuit, ensuring the normal operation of the external load circuit.

[0109] As shown in FIGS. 1 and 5 , the relay of the present disclosure further includes an arc-extinguishing unit 3, which is used to extinguish an arc generated between the fixed contact pull-out end 21 and the movable contact 22. As shown in FIG. 5 , the arc-extinguishing unit 3 includes two arc-extinguishing magnets 31. The arc-extinguishing magnets 31 may be permanent magnets, and each may be substantially rectangular. The two arc-extinguishing magnets 31 are disposed on opposite sides of the insulating cover 23 along the first horizontal direction X. By providing the two arc-extinguishing magnets 31 disposed opposite each other, a magnetic field can be formed around the fixed contact pull-out end 21 and the movable contact 22. Therefore, the arc generated between the fixed contact pull-out end 21 and the movable contact 22 is extended away from each other by the action of the magnetic field, thereby achieving arc extinction.

[0110] The arc-extinguishing unit 3 also includes two yoke clamps 32, which are positioned corresponding to the positions of the two arc-extinguishing magnets 31. The two yoke clamps 32 are arranged to surround the insulating cover 23 and the two arc-extinguishing magnets 31. By designing the yoke clamps 32 to surround the arc-extinguishing magnets 31, it is possible to prevent the magnetic field generated by the arc-extinguishing magnets 31 from spreading outward and affecting the arc-extinguishing effect. The yoke clamps 32 are made of a soft magnetic material. Examples of soft magnetic materials include, but are not limited to, iron, cobalt, nickel, and alloys thereof.

[0111] 13, an embodiment of the present disclosure also provides a control device including a control circuit 41 and a relay. Here, the relay includes a coil 11 and an anti-interference element 42, and the anti-interference element 42 is connected in series with the coil 11 within the control circuit 41.

[0112] In some embodiments, the anti-interference element is at least one of a magnetic bead and an inductor.

[0113] This relay may be the relay in any of the above embodiments, and a description of its specific structure will be omitted.

[0114] As shown in FIG. 13, the control circuit 41 includes a power supply, a resistor 44 (which may be an electronic component), a switch, and a wire, and the interference prevention element 42 is connected in series with the coil 11 within the control circuit 41 to form a current circuit.

[0115] In the control device of the embodiment of the present disclosure, when the relay operates, the control circuit 41 is electrically connected to the relay, and the anti-interference element 42 can significantly reduce and shield the interference signal conducted from the load end to the coil 11, ensuring the normal operation of the relay. At the same time, the anti-interference element 42 is connected in series with the control circuit 41 and does not directly absorb or shield the signal of the external load circuit, ensuring the normal operation of the external load circuit.

[0116] 14, an embodiment of the present disclosure also provides a control circuit module 4 for controlling an electronic component. The control circuit module 4 includes a control circuit 41 and an anti-interference element 42. Here, the control circuit 41 is used for electrically connecting to the electronic component. The anti-interference element 42 is electrically connected to the control circuit 41 for connecting in series with the electronic component.

[0117] Specifically, the control circuit 41 can have a power supply, a resistor 44 (which may be an electronic component), a switch, and a wire to form a current circuit. In an embodiment of the present disclosure, the control circuit 41 has two connection ends, and the electronic component connected to the control circuit 41 is connected in series with the anti-interference element 42 and the resistor 44. Here, the anti-interference element 42 may be a magnetic bead and / or an inductor.

[0118] In some embodiments, the electronic component may be a relay of any of the above embodiments, and a control circuit 41 is used to connect in series with the coil 11 of the relay.

[0119] The control circuit module 41 in the embodiment of the present disclosure is provided with an anti-interference element 42, which can shield high and low frequency interference signals conducted to the control circuit 41 from the external load circuit after the control circuit 41 is switched on by the electronic components, so as to ensure the normal operation of the relay.

[0120] The electronic component may be another component that is interfered with by an interference signal of an external load circuit, such as a contactor, a circuit breaker, etc. By applying the control circuit module of the embodiment of the present disclosure to the electronic component, the influence of the external interference signal on the electronic component can be shielded, thereby ensuring the normal operation of the electronic component.

[0121] The embodiment of the present disclosure further provides a relay as shown in Figures 16, 18 to 21, where Figure 16 shows a schematic perspective view of the relay of the embodiment of the present disclosure, with the housing omitted. Figure 18 shows a schematic top view of Figure 16, Figure 19 shows a cross-sectional view along AA of Figure 18, Figure 20 shows a schematic front view of the relay, and Figure 21 shows a schematic side view of the relay.

[0122] A relay according to an embodiment of the present disclosure includes a housing (not shown), a magnetic circuit unit 1, a contact unit 2, and an arc-extinguishing unit 3. As shown in Figures 18 and 19, the magnetic circuit unit 1, the contact unit 2, and the arc-extinguishing unit 3 are similar to those described in some of the above-mentioned embodiments, and the description thereof will not be repeated here.

[0123] As shown in FIG. 15, the relay of this embodiment of the present disclosure further includes an anti-interference element 42 connected in series with the coil 11 to form a series-connected assembly for electrical connection to an external control circuit 41.

[0124] As shown in Fig. 15, an external control circuit 41 includes a power supply, a resistor 44 (which may be an electronic component), a switch (not shown in Fig. 15), and wires to form a circuit. When the relay is in an operating state, both ends of the coil 11 are connected to this external control circuit 41 so that the coil 11 is connected in series with the resistor 44. An anti-interference element 42 is connected to this control circuit 41 and is connected in series with the coil 11 and the resistor 44.

[0125] In some embodiments, the interference prevention element 42 is at least one of a magnetic bead and an inductor. Here, the magnetic bead is composed of an oxygen magnet, and the inductor is composed of a magnetic core and a coil. The magnetic bead converts AC signals into thermal energy, while the inductor stores and slowly releases AC. The magnetic bead is primarily used to suppress electromagnetic radiation interference, while the inductor focuses on suppressing conductive interference. Both can suppress high-frequency noise and spike interference, and primarily absorb or shield high-frequency interference signals.

[0126] In the embodiment of the present disclosure, the magnetic bead and / or inductor are provided in the relay and connected in series with the coil 11, so that when the relay is operating, they can shield interference signals conducted from the external load circuit to the control circuit 41. In particular, they can significantly reduce and shield high-frequency interference signals among the interference signals conducted from the load end to the coil 11, preventing the interference signals received by the control circuit 41 from being too strong and affecting the components of the control circuit 41, thereby ensuring the normal operation of the relay. At the same time, because the anti-interference element 42 is actually connected in series with the control circuit 41 when the relay is operating, it does not directly absorb or shield high-frequency interference signals from the external load circuit, ensuring the normal operation of the load circuit.

[0127] As shown in FIG. 15 , the relay of the embodiment of the present disclosure further includes a capacitor 43, which is connected to the series-connected assembly formed by the coil 11 and the anti-interference element 42, and the capacitor 43 is not connected in series with the series-connected assembly when the series-connected assembly is connected to an external control circuit 41.

[0128] In some embodiments, one end of the capacitor 43 is connected to the series connection assembly and the other end is grounded, as shown in FIG.

[0129] Specifically, as shown in FIG. 15, one end of the capacitor 43 may be connected between the coil 11 and the anti-interference element 42, or may be connected to one end of the entire series-connected assembly. When the relay is electrically connected to an external control circuit 41, it is sufficient that one end of the capacitor 43 is electrically connected to the control circuit 41, and there are no particular limitations here.

[0130] It should be noted that the other end of the capacitor 43 can be grounded by directly grounding the other end of the capacitor 43 through a wire when the relay is operating, or by connecting the other end of the capacitor 43 to another conductor, such as the conductive material of the relay, and then grounding the other end of the capacitor 43 through that conductor.

[0131] In another embodiment, the capacitor 43 is connected in parallel with at least one of the coil 11 and the anti-interference element 42 .

[0132] Specifically, the capacitor 43 may be connected in parallel with the coil 11, may be connected in parallel with the anti-interference element 42, or may be connected in parallel with the series assembly formed by the coil 11 and the anti-interference element 42. When the relay is electrically connected to an external control circuit 41, the capacitor 43 is connected to that control circuit and may be any type that can realize the above-mentioned parallel connection, and is not particularly limited here.

[0133] When the relay is in an operating state, interference signals of different frequencies from the external load circuit are conducted to the control circuit 41, causing the control circuit 41 to receive AC interference signals of different frequencies. Because the capacitor 43 has the ability to block DC and pass AC, these AC interference signals are drawn through the capacitor 43, simultaneously acting as a shield. Therefore, interference signals can be drawn regardless of whether one end of the capacitor 43 is grounded or whether the capacitor 43 is connected in parallel with the series-connected assembly.

[0134] Furthermore, the frequency of the interference signal that the capacitor 43 extracts is related to the specifications of the capacitor 43. The specifications of the capacitor 43 can be understood as electrical capacitance. The smaller the specifications of the capacitor 43, the more likely it is that low-frequency interference signals will be extracted. Interference signals have a frequency range, and both the capacitor 43 and the interference prevention element 42 can extract or absorb low-frequency and high-frequency interference signals within the frequency range. However, the capacitor 43 is more likely to extract low-frequency interference signals within this frequency range, while the interference prevention element is more likely to block relatively high-frequency interference signals within this frequency range. The synergistic effect of the two can block all interference signals within the frequency range conducted to the coil.

[0135] The specifications of the capacitor 43 can be selected by a person skilled in the art depending on the frequency of the interference signal, and are not particularly limited here.

[0136] As described above, in the embodiment of the present disclosure, when the relay is operating, the anti-interference element 42 is connected in series with the coil 11 to form a series-connected assembly, which can significantly reduce and shield high-frequency interference signals among the interference signals input from the load end and conducted to the coil 11; and the capacitor 43 is connected to the series-connected assembly but is not connected in series with the series-connected assembly, which can significantly reduce and shield low-frequency interference signals among the interference signals input from the load end and conducted to the coil 11, thereby achieving comprehensive shielding of interference signals of different frequencies and ensuring normal operation of the relay.

[0137] 8 to 11, the relay further includes a first connecting member 51, a second connecting member 52, and a third connecting member 53, which have structures similar to those of the first connecting member 51, the second connecting member 52, and the third connecting member 53 described in the above embodiments, and therefore description thereof will not be repeated here. The first connecting member 51, the second connecting member 52, and the third connecting member 53 are used to connect the interference prevention element 42 and the capacitor 43 to the external control circuit 41.

[0138] In some embodiments, as shown in FIG. 17, the second end of the first connecting member 51 is also connected to one end of a capacitor 43, the other end of which is grounded.

[0139] In some embodiments, one end of the capacitor 43 is connected to the conductive post 512 of the first connection member 51, and one end of the capacitor 43 is electrically connected to the control circuit 41, and the other end of the capacitor 43 is grounded. Of course, in some other embodiments, one end of the capacitor 43 may be connected to the first connection portion 521 of the second connection member 52, or one end of the capacitor 43 may be directly connected to the control circuit 41, and it is sufficient that one end of the capacitor 43 is electrically connected to the external control circuit 41 during normal operation of the relay, and this is not particularly limited here.

[0140] As a result, as shown in Figures 15 to 17, when the relay is in an operating state, if we assume that the first lead-out end 511 and the second lead-out end 531 are connected to the control circuit 41 and that the second lead-out end 531 is connected to the positive electrode of the power supply for the control circuit 41, then, for the anti-interference element 42, a current will flow sequentially through the second lead-out end 531 of the third connecting member 53, the winding post 532, the coil 11, the third connecting portion 523 of the second connecting member 52, the second connecting portion 522, the first connecting portion 521, the anti-interference element 42, and the conductive post 512 of the first connecting member 51, before returning to the negative electrode of the power supply for the control circuit 41 via the first lead-out pin 511 of the first connecting member 51. For the capacitor 43, the current flows sequentially through the second lead-out pin 531 of the third connecting member 53, the winding post 532, the coil 11, the third connecting portion 523 of the second connecting member 52, the second connecting portion 522, the first connecting portion 521 (or from the first connecting portion 521 to the anti-interference element 42 and the conductive post 512), and the capacitor 43.

[0141] When an interference signal from the load circuit is conducted to the control circuit 41, the high-frequency interference signal flows through the anti-interference element 42 and is absorbed or blocked, preventing it from interfering with the normal operation of the control circuit 41. The low-frequency interference signal flows into one end of the capacitor 43 and is extracted through the capacitor 43. Therefore, both high-frequency and low-frequency interference signals are removed from the control circuit 41, ensuring the stability of the control circuit 41 and ensuring the normal operation of the relay.

[0142] In some embodiments, the first connecting member 51, the second connecting member 52 and the third connecting member 53 may also be arranged on the second flange portion 123 of the coil bobbin 12, and this is not particularly limited here, and can be set by a person skilled in the art according to the actual situation.

[0143] As shown in FIGS. 22 to 25 , in some embodiments, the relay may further include a yoke base 6 and a lead-out member 55. Here, the coil bobbin 12 is disposed on the yoke base 6, and one end of the lead-out member 55 is connected to a side wall of the yoke base 6, and the other end is connected to the other end of the capacitor 43. In some embodiments, the yoke base 6 has at least two opposing first and second side walls 61 and 62, and a bottom wall 63 connected to one end of the first and second side walls 61 and 62. The first, second, and bottom walls 61, 62, and 63 form an accommodating space, and the coil bobbin 12 is disposed in the accommodating space and disposed on the bottom wall 63. One end of the lead-out member 55 is connected to the first side wall 61 of the yoke base 6 adjacent to the capacitor 43, and the other end of the lead-out member 55 is connected to the other end of the capacitor 43. The lead-out member 55 has conductivity to extract interference signals absorbed by the capacitor 43.

[0144] Therefore, the yoke base 6 is connected to the other end of the capacitor 43 as a conductor for grounding the capacitor 43. Furthermore, as shown in Fig. 19, the yoke base 6 and the yoke plate 25 form a space surrounding the space that houses the magnetic circuit unit 1. When a current is passed through the coil 11 to generate a magnetic field, the yoke base 6 can block the magnetic field from spreading to the outside, thereby improving the utilization rate of the magnetic field.

[0145] 22 , the drawer member 55 has a first drawer portion 551, a second drawer portion 552, and a third drawer portion 553 connected in series, with the first drawer portion 551 and the third drawer portion 553 located on opposite sides of the second drawer portion 552, such that the drawer member 55 is configured to have a substantially Z-shape. The drawer member 55 may be integrally molded. The first drawer portion 551 is used for fixed connection to the yoke base 6, and the third drawer portion 553 is used for connection to the capacitor 43.

[0146] 20 and 23, the yoke base 6 is U-shaped, with a first side wall 61 and a second side wall 62 of the yoke arranged opposite each other in the second horizontal direction Y and extending along the vertical direction Z, with the first side wall 61 being closer to the capacitor 43 than the second side wall 62. A housing groove 611 is provided in the first side wall 62 of the yoke base 6, and the first drawn-out portion 551 is fixedly disposed in the housing groove 611. 23 , a housing groove 611 recessed inward from the outer surface of the first side wall 61 is provided on one side of the first side wall 61 adjacent to the capacitor 43, and the dimension from the opening of the housing groove 611 along the second horizontal direction Y to the bottom of the housing groove 611 is defined as the depth of the housing groove 611, and the dimension of the first side wall 61 along the second horizontal direction Y is defined as the thickness of the first side wall 61. That is, the dimension of the housing groove 611 recessed inward from the outer surface of the first side wall 61 is smaller than the thickness of the first side wall 61, and the bottom of the housing groove 611 faces the opening and is the remaining part of the first side wall 61 after the opening of the housing groove 611. Also, a notch 612 communicating with the housing groove 611 in the second horizontal direction Y is formed on the side edge of the first side wall 61 corresponding to the housing groove 611.

[0147] 22, the first lead portion 551 may have a crimping hole 5511, and as shown in FIG. 24, the bottom of the accommodating groove 611 has another crimping protrusion 6111. The first lead portion 551 is disposed in the accommodating groove 611 and is crimped to the crimping protrusion 6111 at the bottom of the accommodating groove 611 through the crimping hole 5511, so that the first lead portion 551 is crimped to the first side wall 61 of the yoke base 6. In some embodiments, the first lead portion 551 and the third lead portion 553 are each perpendicular to the second lead portion 552. Therefore, by providing the notch 612, the second lead portion 552 can be avoided, making the structure of the relay more compact and reducing the volume of the relay. Furthermore, by connecting the third lead-out portion 553 of the lead-out member 55 to the capacitor 43, the interference signal flowing through the capacitor 43 can be conducted to the yoke base 6, and the other end of the capacitor 43 can be grounded.

[0148] 17, 20, and 25, the relay according to the embodiment of the present disclosure further includes a circuit board 54 (referred to as PCB), and the anti-interference element 42 and the capacitor 43 are provided on the circuit board 54. The circuit board 54 has a first through hole 541, a second through hole 542, and a third through hole 543, and a second end (conductive post 512) of the first connection member 51 is drilled through the first through hole 541 and extends from the circuit board 54, a third end (first connection portion 521) of the second connection member 52 is drilled through the second through hole 542 and extends from the circuit board 54, and a third lead-out portion 553 of the lead-out member 55 is drilled through the third through hole 543 and extends from the circuit board 54.

[0149] Specifically, the capacitor 43 and the anti-interference element 42 may be fixed to the same surface of the circuit board 54 by welding, which may be soldering. Of course, the capacitor 43 and the anti-interference element 42 may be fixed by other connections such as screw connections or adhesives, and this is not particularly limited here.

[0150] In some embodiments, the circuit board 54 is welded to the conductive posts 512 of the first connecting member 51, the first connecting portion 521 of the second connecting member 52, and the third lead portion 553 of the lead member 55, respectively. The first connecting member 51 and the second connecting member 52 are fixedly connected to the coil bobbin 12 (e.g., are integrally formed with the coil bobbin 12). The first lead portion 551 of the lead member 55 is crimped to one side wall of the yoke base 6, thereby achieving fixation of the circuit board 54. In other embodiments, the circuit board 54 may be fixed to the yoke base 6 by an attachment method such as welding, crimping, or screw connection. Of course, the circuit board 54 may be fixed or connected by other methods. Those skilled in the art may determine such methods depending on the position and connection relationship of the circuit board 54, and this is not particularly limited here. Furthermore, the circuit board 54 may be provided outside the relay housing (not shown in the drawings), for example, on the outer surface of the housing, or may be provided inside the housing; this is not particularly limited here.

[0151] 16 , the anti-interference element 42 and the capacitor 43 are disposed on one surface of the circuit board 54 away from the coil bobbin 12, and the anti-interference element 42 is disposed between the first through hole 541 and the second through hole 542. The first through hole 541 of the circuit board 54 corresponds to the conductive post 512 of the first connecting member 51, and the conductive post 512 is drilled in the first through hole 541 and extends from the first through hole 541. The second through hole 542 corresponds to the first connecting portion 521 of the second connecting member 52, and the first connecting portion 521 is drilled in the second through hole 542 and extends from the second through hole 542. Thus, the anti-interference element 42 is disposed between the conductive post 512 of the first connecting member 51 and the first connecting portion 521 of the second connecting member 52, facilitating electrical connection among the three. The third through hole 543 corresponds to the third lead-out portion 553 of the third connection member 53, and the third lead-out portion 553 is drilled in the third through hole 543 and extends from the third through hole 543. The capacitor 43 is located close to the third through hole 543, facilitating connection with the third lead-out portion 553.

[0152] By providing the circuit board 54, the anti-interference element 42 and the capacitor 43 can be integrated into one module, which makes the structure compact and simplifies the installation.

[0153] In some embodiments, to further facilitate installation, the dimensions of the conductive post 512 of the first connecting member 51 extending from the first flange portion 121 are the same as the dimensions of the first connecting portion 521 of the second connecting member 52 extending from the first flange portion 121.

[0154] In some embodiments, the coil 11 has an input end and an output end, and the anti-interference element 42 and the capacitor 43 are located downstream of the output end in the control circuit 41 when the relay is operating. That is, the current in the control circuit 41 first flows through the coil 11, and then flows through the anti-interference element 42 and the capacitor 43.

[0155] Of course, in other embodiments, the anti-interference element 42 and the capacitor 43 may be located upstream of the input end of the coil 11 in the control circuit 41. That is, the current in the control circuit 41 first flows through the anti-interference element 42 and the capacitor 43, and then flows through the coil 11.

[0156] In some embodiments, the number of anti-interference elements 42 is one, and the number of capacitors 43 is one or more.

[0157] In other embodiments, the number of anti-interference elements 42 is plural, and the number of capacitors 43 is one or plural.

[0158] In some embodiments, the anti-interference element 42 may be a magnetic bead or an inductor, or may have both a magnetic bead and an inductor, or may have both multiple magnetic beads and multiple inductors, and those skilled in the art can select one according to the strength of the interference signal in the actual situation, and there is no particular limitation here.

[0159] Research has shown that for interference signals having a frequency range, the magnetic beads / inductors can mainly reduce and shield high-frequency interference signals within this frequency range, while the capacitors 43 can mainly reduce and shield relatively low-frequency interference signals within the frequency range. The smaller the specifications of the capacitors 43, the easier it is to extract low-frequency interference signals, and the smaller the specifications of the capacitors 43, the smaller the frequency range of interference signals extracted by the capacitors 43. Therefore, the number of anti-interference elements 42 and capacitors 43 can be determined according to the frequency range of the interference signals and the specifications of the capacitors 43. The number of anti-interference elements 42 can be one or more, and the number of capacitors 43 can also be one or more. Those skilled in the art can determine these according to their actual situation, and no particular limitations are placed here.

[0160] As described above, in the embodiment of the present disclosure, when the relay is operating, the anti-interference element 42 is connected in series with the coil 11 to form a series-connected assembly, which significantly reduces and blocks interference signals conducted from the external load circuit to the control circuit 41 connected to the relay. In particular, it significantly reduces and blocks high-frequency interference signals among the interference signals conducted from the load end to the coil 11, preventing the control circuit 41 from receiving excessively strong interference signals that could affect the normal operation of the components within the control circuit 41 and ensuring the normal use of the relay. At the same time, because the anti-interference element 42 is actually connected in series with the control circuit 41 when the relay is operating, it does not directly absorb or block signals from the external load circuit, ensuring the normal operation of the external load circuit. Furthermore, by connecting the capacitor 43 with the series-connected assembly rather than in series, it significantly reduces and blocks low-frequency interference signals among the interference signals input from the load end and conducted to the coil 11, thereby completely blocking interference signals and ensuring the normal operation of the relay.

[0161] 26 , an embodiment of the present disclosure also provides a control device including a control circuit 41 and a relay. Here, the relay includes a coil 11, an anti-interference element 42, and a capacitor 43. The anti-interference element 42 is connected in series with the coil 11 to form a series-connected assembly, the series-connected assembly is connected to the control circuit 41, and the capacitor 43 is connected to the series-connected assembly, and the capacitor 43 and the series-connected assembly are not connected in series in the control circuit 41.

[0162] The relay may be any of the relays in the above embodiments, and a description of the specific structure thereof will be omitted.

[0163] 26, the control circuit 41 has a power supply, a resistor 44 (which may be an electronic component), a switch, and a wire, and the series-connected assembly is connected to the control circuit 41 to form a current circuit. In some embodiments, one end of the capacitor 43 is connected to the control circuit 41, and the other end is grounded. In other embodiments, the capacitor 43 is connected in parallel to the control circuit 41, i.e., the capacitor 43 is connected in parallel to at least one of the anti-interference element 42, the coil 11, and the resistor 44.

[0164] In the control device of this embodiment of the present disclosure, when the relay operates, the control circuit 41 is electrically connected to the relay, and the anti-interference element 42 significantly reduces and blocks high-frequency interference signals among the interference signals conducted from the load end to the coil 11, ensuring normal use of the relay. At the same time, the anti-interference element 42 is connected in series with the control circuit 41, without directly absorbing or blocking signals from the external load circuit, ensuring normal operation of the external load circuit. The capacitor 43 is connected to the series-connected assembly, but not in series with the series-connected assembly, significantly reducing and blocking low-frequency interference signals among the interference signals input from the load end and conducted to the coil 11, providing comprehensive blocking of interference signals of different frequencies and ensuring normal operation of the relay.

[0165] As shown in FIG. 27, an embodiment of the present disclosure also provides a control circuit module 4 for controlling an electronic component. The control circuit module 4 includes a control circuit 41, an anti-interference element 42, and a capacitor 43. Here, the control circuit 41 is used for electrically connecting to the electronic component. The anti-interference element 42 is electrically connected to the control circuit 41 for series connection with the electronic component. The capacitor 43 is electrically connected to the control circuit 41. When the control circuit 41 is electrically connected to the electronic component, the capacitor 43 is not connected in series with the electronic component and the anti-interference element 42.

[0166] Specifically, the control circuit 41 can include a power supply, a resistor 44 (which may be an electronic component), a switch, and a wire to form a current circuit. In an embodiment of the present disclosure, the control circuit 41 has two connection terminals, allowing the electronic component to be connected to the control circuit 41 and connected in series with the anti-interference element 42 and the resistor 44. One end of the capacitor 43 may be connected to one of the control circuit 41 and the other end of the capacitor 43 may be grounded. Alternatively, the capacitor 43 may be connected in parallel with at least one of the anti-interference element 42 and the resistor 44. Alternatively, when the control circuit 41 is electrically connected to the electronic component, the capacitor 43 may be connected in parallel with the electronic component. Here, the anti-interference element 42 may be a magnetic bead and / or an inductor.

[0167] In some embodiments, the electronic component may be a relay of any of the above embodiments, and a control circuit 41 is used to connect in series with the coil 11 of the relay.

[0168] The control circuit module 41 of the embodiment of the present disclosure is provided with an anti-interference element 42 and a capacitor 43, so that when the control circuit 41 is switched on by an electronic component, high and low frequency interference signals transmitted from the external load circuit to the control circuit 41 can be completely blocked, thereby ensuring the normal operation of the relay.

[0169] In addition, the electronic component may be another component, such as a contactor, circuit breaker, etc., that is affected by interference signals from an external load circuit, and by applying the control circuit module of an embodiment of the present disclosure to the electronic component, the influence of external interference signals on the electronic component can be blocked, ensuring normal operation of the electronic component.

[0170] Also, an embodiment of the present disclosure provides a relay as shown in Figures 29, 31, 18 to 19, and 21, where Figure 29 shows a schematic perspective view of the relay of the embodiment of the present disclosure, in which the housing is omitted. Figure 18 shows a schematic top view of Figure 29, Figure 19 shows a cross-sectional view along DD in Figure 18, Figure 31 shows a schematic front view of the relay, and Figure 21 shows a schematic side view of the relay.

[0171] A relay according to an embodiment of the present disclosure includes a housing (not shown in the drawings), a magnetic circuit unit 1, a contact unit 2, and an arc-extinguishing unit 3. As shown in Figures 18 and 19, the magnetic circuit unit 1, the contact unit 2, and the arc-extinguishing unit 3 are similar to those described in some of the above-mentioned embodiments, and the description thereof will not be repeated here.

[0172] 28, the relay according to the embodiment of the present disclosure further includes a capacitor 43 connected to the coil 11. When the coil 11 is used to electrically connect with the external control circuit 41, i.e., when the relay is in an operating state, the capacitor 43 is not connected in series with the coil.

[0173] As shown in Figure 28, an external control circuit 41 includes a power supply, a resistor 44 (which may be an electronic component), a switch (not shown in Figure 28), and wires to form a circuit. When the relay is in an activated state, both ends of the coil 11 are connected to this external control circuit 41 so that the coil 11 is connected in series with the resistor 44. A capacitor 43 is connected to the coil 11 so that the capacitor 43 and the coil 11 are not connected in series in the control circuit 41.

[0174] In some embodiments, as shown in FIG. 28, one end of the capacitor 43 is connected to the coil 11 and the other end is grounded.

[0175] Specifically, as shown in Figure 28, when one end of capacitor 43 is connected to one end of coil 11 and the relay is electrically connected to an external control circuit 41, it is sufficient that one end of capacitor 43 can be electrically connected to control circuit 41, and there are no particular limitations here.

[0176] It should be noted that the other end of the capacitor 43 can be grounded either directly via a wire when the relay is operating, or by connecting the other end of the capacitor 43 to another conductor, such as the conductive material of the relay, and then grounding the other end via that conductor.

[0177] In other embodiments, capacitor 43 is connected in parallel with coil 11. If the relay is electrically connected to an external control circuit 41, capacitor 43 can be connected to that control circuit and in parallel with coil 11.

[0178] When the relay is in an operating state, interference signals of different frequencies from the external load circuit are transmitted to the control circuit 41, which then receives AC interference signals of different frequencies. Because the capacitor 43 has the ability to block DC but pass AC, these AC interference signals are drawn through the capacitor 43, simultaneously acting as a shield. Therefore, even if one end of the capacitor 43 is grounded or the capacitor 43 is connected in parallel with the coil 11, the interference signals can still be drawn through the capacitor 43.

[0179] The frequency range of the interference signal that the capacitor 43 can extract depends on its specifications. The specifications of the capacitor 43 can be understood as its capacitance. The smaller the specifications of the capacitor 43, the more likely it is to extract low-frequency interference signals. The larger the specifications, the more likely it is to extract high-frequency interference signals. The larger the specifications, the wider the frequency range of interference signals that the capacitor 43 can extract. In the embodiment of the present disclosure, by selecting a capacitor with appropriate specifications according to the frequency range of the interference signals, it is possible to extract interference signals conducted from the load circuit and significantly reduce and shield interference signals of different frequencies. At the same time, when the relay operates, the capacitor 43 is actually electrically connected to the control circuit 41, thereby not directly absorbing or shielding signals in the external load circuit and ensuring the normal operation of the load circuit.

[0180] 8 to 11, the relay further includes a first connecting member 51, a second connecting member 52, and a third connecting member 53, which have the same structures as the first connecting member 51, the second connecting member 52, and the third connecting member 53 described in the above-described embodiments, and therefore the description thereof will not be repeated here. The first connecting member 51, the second connecting member 52, and the third connecting member 53 are used to connect the capacitor 43 and the coil 11.

[0181] 8 to 10 , the first connecting member 51 is electrically conductive and is provided on the coil bobbin 12. The first connecting member 51 has a first end and a second end, the first end being used to connect to one pole of a power supply of the external control circuit 41, and the second end being used to connect to one end of the capacitor 43. The second connecting member 52 is electrically conductive and is provided on the coil bobbin 12. The second connecting member 52 has a third end and a fourth end, the third end being connected to the second end of the first connecting member 51, and the fourth end being connected to one end of the coil 11. Here, the other end of the coil 11 is used to connect to the other pole of the power supply of the external control circuit 41 so as to form a circuit when the coil 11 is electrically connected to the external control circuit 41.

[0182] In some embodiments, as shown in FIG. 10 , the first extractor pin 511 has a sheet shape for connection to the control circuit 41. The conductive post 512 is disposed at one end of the first extractor pin 511 and is perpendicular to the first extractor pin 511. The conductive post 512 and the first extractor pin 511 may be integrally formed. The conductive post 512 is used to electrically connect to one end of the capacitor 43. In some embodiments, the width of the conductive post 512 is smaller than the width of the first extractor pin 511. Referring to FIG. 9 , the width of the conductive post 512 is the dimension of the conductive post 512 along the second horizontal direction Y, and the width of the first extractor pin 511 is the dimension of the first extractor pin 511 along the second horizontal direction Y. Setting the width of the conductive post 512 smaller than the width of the first extractor pin 511 facilitates wiring and saves space and materials. Here, the portion of the first pull-out pin portion 511 extending from the first flange portion 121 is the first end of the first connecting member 51 for connecting to the control circuit 41, and the portion of the conductive post 512 extending from the first flange portion 121 is the second end of the first connecting member 51 for connecting to one end of the capacitor 43.

[0183] In some embodiments, as shown in FIG. 30, the second end of the first connection member 51 is connected to one end of the capacitor 43, and the other end of the capacitor 43 is grounded.

[0184] In some embodiments, one end of the capacitor 43 is connected to the conductive post 512 of the first connection member 51, thereby electrically connecting one end of the capacitor 43 to the control circuit 41, and the other end of the capacitor 43 is grounded. Of course, in other embodiments, one end of the capacitor 43 may be connected to the first connection portion 521 of the second connection member 52, or one end of the capacitor 43 may be directly connected to the control circuit 41, and there is no particular limitation here as long as one end of the capacitor 43 is electrically connected to the external control circuit 41 during normal operation of the relay.

[0185] In this way, as shown in Figures 28 to 30, when the relay is in an operating state, it is assumed that the first pull-out pin 511 and the second pull-out pin 531 are connected to the control circuit 41 and the second pull-out pin 531 is connected to the positive electrode of the power supply for the control circuit 41. Current flows sequentially through the second pull-out pin 531 of the third connecting member 53, the winding post 532, the coil 11, the third connecting portion 523 of the second connecting member 52, the second connecting portion 522, the first connecting portion 521, and the conductive post 512 of the first connecting member 51, before flowing back from the first pull-out pin 511 of the first connecting member 51 to the negative electrode of the power supply for the control circuit 41. For the capacitor 43, the current flows sequentially through the second pull-out pin 531 of the third connection member 53, the winding post 532, the coil 11, the third connection portion 523 of the second connection member 52, the second connection portion 522, the first connection portion 521 (or from the first connection portion 521 to the conductive post 512 of the first connection member 51), and the capacitor 43.

[0186] After the interference signal from the load circuit is conducted to the control circuit 41, the interference signal flows into one end of the capacitor 43 and is extracted through the capacitor 43. Therefore, interference signals of different frequencies can be removed from the control circuit 41, ensuring the stability of the control circuit 41 and ensuring the normal operation of the relay.

[0187] In some embodiments, the first connecting member 51, the second connecting member 52 and the third connecting member 53 may also be arranged on the second flange portion 123 of the coil bobbin 12, and this is not particularly limited here as it can be set by a person skilled in the art according to the actual situation.

[0188] 22 to 24, in some embodiments, the relay may further include a yoke base 6 and a lead-out member 55. Here, the coil bobbin 12 is disposed in the yoke base 6, one end of the lead-out member is connected to the side wall of the yoke base 6, and the other end is connected to the other end of the capacitor 43, thereby leading out interference signals absorbed by the capacitor 43. The structures and functions of the yoke base 6 and the lead-out member 55 are similar to those of the yoke base 6 in the above embodiment, and will not be repeated here.

[0189] In this way, the yoke base 6 is connected to the other end of the capacitor 43 as a conductor that realizes grounding of the capacitor 43. Furthermore, as shown in Fig. 19, the yoke base 6 and the yoke plate 25 form a space surrounding the space that houses the magnetic circuit unit 1. When a magnetic field is generated by passing a current through the coil 11, the yoke base 6 can block the magnetic field from spreading to the outside, thereby improving the utilization efficiency of the magnetic field.

[0190] 12 , the lead-out member 55 has a first lead-out portion 551, a second lead-out portion 552, and a third lead-out portion 553 connected in sequence, with the first lead-out portion 551 and the third lead-out portion 553 located on opposite sides of the second lead-out portion 552, forming a substantially “Z” shape. The lead-out member 55 may be integrally molded. The first lead-out portion 551 is used for fixed connection to the yoke base 6, and the third lead-out portion 553 is used for connection to the capacitor 43. In some embodiments, the third lead-out portion 553 of the lead-out member 55 is connected to the capacitor 43, thereby conducting an interference signal flowing through the capacitor to the yoke base 6 and grounding the other end of the capacitor 43.

[0191] 30 , 31 , and 32 , the relay according to the embodiment of the present disclosure further includes a circuit board 54 (referred to as a PCB), and the capacitor 43 is provided on the circuit board 54. The circuit board 54 has a first through hole 541, a second through hole 542, and a third through hole 543, with the second end (conductive post 512) of the first connection member 51 drilled through the first through hole 541 and extending from the circuit board 54, the third end (first connection portion 521) of the second connection member 52 drilled through the second through hole 542 and extending from the circuit board 54, and the third lead-out portion 553 of the lead-out member 55 drilled through the third through hole 543 and extending from the circuit board 54.

[0192] Specifically, the capacitor 43 may be fixed to the same surface of the circuit board 54 by welding, which may be soldering. Of course, the capacitor 43 may be fixed by other connections such as screw connections or adhesives, and this is not particularly limited here.

[0193] In some embodiments, the circuit board 54 is welded to the conductive posts 512 of the first connecting member 51, the first connecting portion 521 of the second connecting member 52, and the third lead portion 553 of the lead member 55, respectively. The first connecting member 51 and the second connecting member 52 are fixedly connected to the coil bobbin 12 (e.g., are integrally formed with the coil bobbin 12). The first lead portion 551 of the lead member 55 is crimped to the side wall of the yoke base 6, thereby achieving fixation of the circuit board 54. In other embodiments, the circuit board 54 may be fixed to the yoke base 6 by welding, crimping, screw connection, or other mounting method. Of course, the circuit board 54 may be fixedly connected by other methods. Those skilled in the art may determine this method depending on the position and connection relationship of the circuit board 54, and this method is not particularly limited here. Furthermore, the circuit board 54 may be provided outside the relay housing (not shown in the drawings), for example, on the outer surface of the housing, or may be provided inside the housing; this method is not particularly limited here.

[0194] 29 , the capacitor 43 is disposed on the surface of one side of the circuit board 54 away from the coil bobbin 12. The first through-hole 541 of the circuit board 54 corresponds to the conductive post 512 of the first connecting member 51, and the conductive post 512 is provided in the first through-hole 541 and extends from the first through-hole 541. The second through-hole 542 corresponds to the first connecting portion 521 of the second connecting member 52, and the first connecting portion 521 is provided in the second through-hole 542 and extends from the second through-hole 542. The third through-hole 543 corresponds to the third lead-out portion 553 of the third connecting member 53, and the third lead-out portion 553 is provided in the third through-hole 543 and extends from the third through-hole 543. The capacitor 43 is disposed between the first through-hole 541 and the third through-hole 543 so as to be easily connected to the conductive post 512 of the first connection member 51 and the third lead-out portion 553 of the lead-out member 55, respectively.

[0195] By providing such a circuit board 54, the capacitors 43 can be integrated into a module (for example, when there are a plurality of capacitors 43), resulting in a compact structure and easy installation.

[0196] In some embodiments, to further facilitate installation, the dimensions of the conductive post 512 of the first connecting member 51 extending from the first flange portion 121 are the same as the dimensions of the first connecting portion 521 of the second connecting member 52 extending from the first flange portion 121.

[0197] In some embodiments, the coil 11 has an input end and an output end, and the capacitor 43 is located downstream of the output end in the control circuit 41 when the relay is operating. That is, the current in the control circuit 41 flows first through the coil 11 and then splits off and flows through the capacitor 43.

[0198] Of course, in other embodiments, the capacitor 43 may be located upstream of the input of the coil 11 in the control circuit 41. That is, the current of the control circuit 41 is split and flows first through the capacitor 43 and then through the coil 11.

[0199] In some embodiments, the number of capacitors 43 may be one or more, and those skilled in the art can select the capacitors 43 according to the frequency range of the interference signal in the actual situation, and there is no particular limitation here.

[0200] In summary, in the embodiment of the present disclosure, when the relay operates, the coil 11 is connected to the external control circuit 41, and the capacitor 43 is also electrically connected to the control circuit 41, rather than being connected in series with the coil 11. The capacitor 43 can significantly reduce and shield interference signals of different frequencies, ensuring the stability of the external control circuit 41 and ensuring the normal operation of the relay. At the same time, when the relay operates, the capacitor 43 is actually electrically connected to the control circuit 41, so it does not directly absorb or shield signals from the external load circuit, ensuring the normal operation of the load circuit.

[0201] 33 , an embodiment of the present disclosure further provides a control device including a control circuit 41 and a relay. Here, the relay includes a coil 11 and a capacitor 43. Here, the coil 11 is electrically connected to the control circuit 41, the capacitor 43 is connected to the coil 11, and the capacitor 43 and the coil 11 are not connected in series in the control circuit 41.

[0202] This relay may be any of the relays in the above embodiments, and a description of the specific structure thereof will be omitted.

[0203] 33, the control circuit 41 includes a power source, a resistor 44 (which may be an electronic component), a switch, and wires, and the coil 11 and resistor 42 are connected in series to the control circuit 41 to form a current circuit. In some embodiments, one end of a capacitor 43 is connected to the control circuit 41, and the other end is grounded. In other embodiments, the capacitor 43 is connected in parallel to the control circuit 41, i.e., the capacitor 43 is connected in parallel to at least one of the coil 11 and the resistor 42.

[0204] In the control device of the embodiment of the present disclosure, the control circuit 41 is electrically connected to the relay, and the capacitor 43 can significantly reduce and shield interference signals of different frequencies, ensure the stability of the control circuit 41, and ensure the normal operation of the relay. At the same time, when the relay operates, the capacitor 43 is actually electrically connected to the control circuit 41, so it does not directly absorb or shield signals from the external load circuit, ensuring the normal operation of the load circuit.

[0205] 34, an embodiment of the present disclosure further provides a control circuit module 4 for controlling an electronic component. The control circuit module 4 includes a control circuit 41 and a capacitor 43. Here, the control circuit 41 is used for electrically connecting to the electronic component. The capacitor 43 is electrically connected to the control circuit 41, and when the control circuit 41 is electrically connected to the electronic component, the capacitor 43 is not connected in series with the electronic component.

[0206] Specifically, the control circuit 41 can have a power source, a resistor 44 (which may be an electronic component), a switch, and a wire to form a current circuit. In an embodiment of the present disclosure, the control circuit 41 has two connection terminals, so that the electronic component is connected to the control circuit 41 and connected in series with the resistor 44. One end of the capacitor 43 may be connected to one of the control circuits 41 and the other end of the capacitor 43 may be grounded, or the capacitor 43 may be connected in parallel with the resistor 44. Alternatively, when the control circuit 41 is electrically connected to the electronic component, the capacitor 43 may be connected in parallel with the electronic component, and this is not particularly limited here.

[0207] In some embodiments, the electronic component may be a relay of any of the above embodiments, and control circuitry 41 is used to connect in series with the coil 11 of the relay.

[0208] The control circuit module 41 in the embodiment of the present disclosure includes a capacitor 43, which can shield interference signals of different frequencies conducted to the control circuit 41 by the external load circuit when the control circuit 41 is switched on by the electronic components, thereby ensuring the normal operation of the relay.

[0209] The electronic component may be another component that is interfered with by an interference signal from an external load circuit, such as a contactor, a circuit breaker, etc. By applying the control circuit module of the embodiment of the present disclosure to the electronic component, the electronic component can be shielded from the influence of the external interference signal, ensuring the normal operation of the electronic component.

[0210] It is understood that the various examples / embodiments provided in the present invention can be combined with each other without causing a contradiction, and they will not be described one by one here.

[0211] In the embodiments of the invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" means two or more unless otherwise limited. Terms such as "attached," "contact," "connected," and "fixed" should be understood broadly. For example, "connected" may mean a fixed connection, a detachable connection, or an integral connection. "Contacted" may mean a direct connection or an indirect connection via an intermediate medium. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art depending on the specific circumstances.

[0212] In describing the embodiments of the present invention, the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "front," and "rear" are orientations or positional relationships based on the drawings and are intended merely to facilitate the description and simplification of the embodiments of the present invention, and do not indicate or imply that the devices or units referred to have a particular direction or are required to be configured and operate in a particular orientation, and therefore should not be understood as limitations on the embodiments of the invention.

[0213] In the description herein, the terms "one embodiment," "some embodiments," "particular embodiment," etc., mean that the particular feature, structure, material, or characteristic described in connection with this embodiment or example is included in at least one embodiment or example of the invention. In this description, general references to the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular feature, structure, material, or characteristic described above can be connected in any suitable manner in any one or more embodiments or examples.

[0214] The above is only a preferred embodiment of the invention, and is not intended to limit the invention, and those skilled in the art can make various modifications and changes to the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the invention should be included in the protection scope of the invention.

Claims

1. A relay including a coil and an anti-interference element, the coil is configured to be electrically connected to an external control circuit; The anti-interference element is connected to the coil, and when the coil is used to electrically connect to the external control circuit, the coil and the anti-interference element are connected in series to the external control circuit.

2. The relay of claim 1 , wherein the anti-interference element is at least one of a magnetic bead and an inductor.

3. further including a coil bobbin, a first connecting member, and a second connecting member; The coil is wound around the coil bobbin, the first connecting member is electrically conductive and is disposed on the coil bobbin, the first connecting member having a first end and a second end, the first end being configured to be connected to one pole of a power supply of the external control circuit, and the second end being connected to one end of the anti-interference element; the second connecting member is electrically conductive and is disposed on the coil bobbin, the second connecting member having a third end and a fourth end, the third end being connected to the other end of the anti-interference element, and the fourth end being connected to one end of the coil; 2. The relay according to claim 1, wherein the other end of the coil is configured to be connected to the other pole of the power supply of the external control circuit so as to form a circuit when the coil and the interference prevention element are electrically connected to the external control circuit.

4. further comprising a third connecting member; 4. The relay according to claim 3, wherein the third connection member is electrically conductive and is disposed on the coil bobbin, the third connection member having a fifth end and a sixth end, the fifth end being connected to the other end of the coil, and the sixth end being configured to be connected to the other pole of the power supply of the external control circuit.

5. the coil bobbin includes a winding portion, a first flange portion, and a second flange portion, the first flange portion and the second flange portion being located on both sides of the winding portion and protruding outward; the first connection member has a first pull-out pin and a conductive post, the conductive post being vertically connected to one end of the first pull-out pin, a portion of the first connection member being fitted into the first flange portion, the first pull-out pin extending in a vertical direction and protruding from a bottom portion of the first flange portion, and the conductive post extending in a first horizontal direction and protruding from a side surface of the first flange portion; 4. The relay according to claim 3, wherein a portion of the first extraction pin extending from the first flange portion is the first end of the first connection member, and a portion of the conductive post extending from the first flange portion is the second end of the first connection member.

6. the second connecting member has a U-shape in which a first connecting portion, a second connecting portion, and a third connecting portion are connected in sequence, at least the second connecting portion is fitted into the first flange portion of the coil bobbin, and the first connecting portion and the third connecting portion both extend in the first horizontal direction and extend from a side surface of the first flange portion; 6. The relay according to claim 5, wherein a portion of the first connection portion extending from the first flange portion is the third end of the second connection member, and a portion of the third connection portion extending from the first flange portion is the fourth end of the second connection member.

7. 7. The relay according to claim 6, wherein the first connection member and the second connection member are located on the same side of the first flange portion, and the first connection portion, the third connection portion, and the conductive post are spaced apart in a second horizontal direction.

8. a recessed groove is provided on an edge of the first flange portion corresponding to the third connecting portion, and the third connecting portion extends from the recessed groove; 8. The relay according to claim 7, wherein the third connection portion has toughness and is configured to be bendable so as to extend in the vertical direction after the third connection portion is connected to one end of the coil.

9. The relay according to any one of claims 3 to 8, further comprising a circuit board, the interference prevention element being provided on the circuit board, the circuit board having a first through hole and a second through hole, the second end of the first connecting member being drilled in the first through hole and extending out from the circuit board, and the third end of the second connecting member being drilled in the second through hole and extending out from the circuit board.

10. The relay according to any one of claims 1 to 3, wherein the number of the interference prevention elements is one or more.

11. A control device, a control circuit; a relay including a coil and an anti-interference element; The interference prevention element and the coil are connected in series to the control circuit.

12. The control device of claim 11 , wherein the anti-interference element is at least one of a magnetic bead and an inductor.

13. A control circuit module for controlling an electronic component, comprising: The control circuit module includes: a control circuit electrically connected to the electronic component; a control circuit module, the control circuit module including an anti-interference element electrically connected to the control circuit and adapted to be connected in series with the electronic component;

14. 14. The control circuit module of claim 13, wherein the electronic component is a relay, and the control circuit is adapted to be electrically connected to a coil of the relay.

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