Relay and electric equipment

Abstract

The invention relates to the technical field of electronic devices, and provides a relay and electric equipment.The relay comprises an insulating cover, a moving contact, a static contact, a driving structure and a monitoring structure, the insulating cover is provided with an inner cavity, the moving contact is arranged in the inner cavity, a moving contact is formed at the end of the moving contact, the static contact extends out of the insulating cover from the inner cavity, and the driving structure is arranged in the inner cavity. A fixed contact is formed at one end, located in the inner cavity, of the fixed contact, a connecting contact is formed at one end, located outside the inner cavity, of the fixed contact, the movable contact is connected to the driving structure, and the movable contact has a connecting state enabling the movable contact to be connected with the fixed contact and a separating state enabling the movable contact to be separated from the fixed contact under driving of the driving structure. The monitoring structure is connected to the static contact and arranged on the outer side of the insulating cover. The monitoring structure is configured to be capable of forming a current loop for monitoring information of current flowing through the movable contact and the static contact. According to the relay provided by the embodiment of the invention, the reliability of the relay can be improved based on the arrangement of the monitoring structure.

Description

Technical Field

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

[0002] Relays can be used as safety protection devices in high-voltage circuits. When a short circuit occurs in the high-voltage circuit, the relay can cut off the circuit to ensure the safety of the relay and electrical equipment.

[0003] Relays in related technologies usually use an auxiliary contact structure to achieve the cut-off control of the high-voltage circuit. The auxiliary contact structure is integrated into the moving contact and moves with the moving contact. When a short circuit or other fault occurs in the high-voltage circuit, the fault information needs to be obtained before the auxiliary contact structure can be controlled to move. The time from the occurrence of the short circuit fault to the control of the auxiliary contact structure is relatively long. The auxiliary contact structure cannot respond in time and cut off the high-voltage circuit. The auxiliary contact structure is not sensitive enough, and the auxiliary contact structure is easily affected by metal particles and is prone to failure.

[0004] Therefore, the relay in the related art has the problem of low reliability when in use. Summary of the invention

[0005] The present application provides a relay and an electrical device, which can improve the reliability of the relay.

[0006] A first aspect of the present application provides a relay, comprising:

[0007] An insulating cover having an inner cavity;

[0008] A moving contact, disposed in the inner cavity, with a moving contact point formed at the end of the moving contact;

[0009] A stationary contact extending from the inner cavity through the insulating cover, wherein one end of the stationary contact located in the inner cavity forms a stationary contact point, and one end of the stationary contact located outside the inner cavity forms a connecting contact point;

[0010] a driving structure, the moving contact being connected to the driving structure, and the moving contact having a connection state in which the moving contact is connected to the stationary contact and a separation state in which the moving contact is separated from the stationary contact under the driving of the driving structure;

[0011] and a monitoring structure, wherein the monitoring structure is connected to the static contact and is arranged outside the insulating cover, and the monitoring structure is configured to form a current loop capable of monitoring current information flowing through the moving contact and the static contact.

[0012] According to the relay described in the first aspect of the present application, the monitoring structure can form a current loop for monitoring the current information flowing through the moving contact and the static contact, and the current loop is connected in parallel to the outside of the static contact. When a short circuit or other fault occurs in the high-voltage circuit, the contact internal resistance between the moving contact and the static contact changes, and the current in the current loop will also change accordingly. The current loop can react instantly and has high sensitivity. Based on the design of the monitoring structure being located outside the insulating cover, the current loop is not affected by the internal metal particles and can be used stably for a long time, with high stability and high monitoring accuracy. The relay in the embodiment of the present application can improve the reliability of the relay based on the setting of the monitoring structure.

[0013] In a possible implementation, the portion of the static contact extending out of the insulating cover forms a monitoring connection portion, and the monitoring structure includes:

[0014] A conductive component, one end of which is connected to the monitoring connection portion to form a monitoring connection end, and the other end of which forms a monitoring output end.

[0015] In a possible implementation, the conductive component includes:

[0016] a first conductive connecting member, the first conductive connecting member being electrically connected to the monitoring connecting portion;

[0017] and a second conductive connection member, wherein the second conductive connection member is electrically connected to the first conductive connection member.

[0018] In a possible implementation, the first conductive connecting member is in a ring-shaped structure and is sleeved on the outer circumference of the monitoring connecting portion.

[0019] In a possible implementation manner, the second conductive connecting member is in a long strip structure.

[0020] In a possible implementation manner, a notch is formed on the first conductive connecting member, and one end of the second conductive connecting member is connected to the notch.

[0021] In a possible implementation, a flange is formed on the monitoring connection portion, and the first conductive connection member is connected to the flange.

[0022] In a possible implementation, the conductive component includes a first straight line segment, a second straight line segment, and a bending segment connected between the first straight line segment and the second straight line segment.

[0023] In a possible implementation, the driving structure includes:

[0024] Execution parts;

[0025] and a driving mechanism, wherein the actuator is connected to an output end of the driving mechanism, and the moving contact is mounted on the actuator.

[0026] In one possible implementation, the driving mechanism includes:

[0027] a casing having a moving channel;

[0028] a coil, disposed around the sleeve and configured to form a magnetic field in the moving channel;

[0029] And a moving component is arranged in the moving channel, the moving component can move along the moving channel under the action of the magnetic field, and the actuator is installed on the moving component.

[0030] In one possible implementation, the mobile component includes:

[0031] A first iron core, fixedly disposed in the moving channel;

[0032] and a second iron core, which is arranged opposite to the first iron core and can move along the moving channel, and the actuator is connected to the second iron core.

[0033] In a possible implementation, the mobile component further includes:

[0034] A reset elastic member is connected between the first iron core and the second iron core.

[0035] In a possible implementation, the driving mechanism further includes:

[0036] A frame, wherein the coil is connected to the frame.

[0037] In a possible implementation, the driving mechanism further includes:

[0038] A conjugate magnet is formed with a conjugate cavity, the frame is installed in the conjugate cavity, the conjugate magnet and the frame form a winding cavity, and the coil is arranged in the winding cavity.

[0039] In a possible implementation, the actuator includes a connecting rod, and the moving contact is connected to one end of the connecting rod.

[0040] In a possible implementation, a limit position structure is formed on the connecting rod, and the relay further includes:

[0041] A movable connection part, movably arranged on the connecting rod, and the moving contact is connected to the movable connection part;

[0042] and a buffer elastic member connected between the movable connection portion and the limiting structure.

[0043] In a possible implementation, the relay further includes:

[0044] A circuit board is formed with a first connection point, the monitoring output terminal is electrically connected to the first connection point, and a first connection terminal electrically connected to the first connection point is formed on the circuit board.

[0045] In a possible implementation, a second connection point and a second connection end electrically connected to the second connection point are formed on the circuit board, and the driving structure includes:

[0046] A coil having a current input terminal and a current output terminal, wherein the current input terminal and the current output terminal are electrically connected to the second connection point.

[0047] In a possible implementation, the driving structure further includes:

[0048] A skeleton, wherein the skeleton is formed with an electrical connection structure, wherein the electrical connection structure is formed with a first connection column on the inner side of the skeleton, and wherein the electrical connection structure is formed with a second connection column on the outer side of the skeleton, wherein the coil is connected to the first connection column, and wherein the second connection column is electrically connected to the second connection point.

[0049] In a possible implementation, a first mounting structure is formed on the circuit board, and the frame further includes:

[0050] The second mounting structure, the first mounting structure can be fixedly connected to the second mounting structure.

[0051] In one possible implementation, the first connection end and the second connection end are arranged at the edges of the circuit board, the first mounting structure is arranged at a central position of the circuit board, the first connection point is located between the first mounting structure and the first connection end, and the second connection point is located between the second mounting structure and the second connection end.

[0052] In a possible implementation, the relay further includes:

[0053] A protective cover is arranged on the outside of the insulating cover.

[0054] In a possible implementation, the relay further includes:

[0055] The housing has a mounting cavity, the insulating cover, the moving contact, the stationary contact, the driving structure and the monitoring structure are arranged in the mounting cavity, and the stationary contact extends out of the housing.

[0056] A second aspect of the present application provides an electrical device, comprising the relay described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0058] Figure 1 A schematic diagram of the structure of a relay provided according to an embodiment of the present application is shown;

[0059] Figure 2 A cross-sectional view of a relay provided according to an embodiment of the present application is shown;

[0060] Figure 3 A schematic diagram of the internal structure of a relay provided according to an embodiment of the present application is shown;

[0061] Figure 4 A cross-sectional view showing the internal structure of a relay provided according to an embodiment of the present application;

[0062] Figure 5 A schematic structural diagram of a second conductive connector provided according to an embodiment of the present application is shown;

[0063] Figure 6 A schematic structural diagram of a first conductive connector provided according to an embodiment of the present application is shown;

[0064] Figure 7 A schematic structural diagram of a stationary contact provided according to an embodiment of the present application is shown;

[0065] Figure 8 A schematic diagram of the structure of a circuit board provided according to an embodiment of the present application is shown;

[0066] Fig. 9 A schematic diagram of the structure of a skeleton provided according to an embodiment of the present application is shown;

[0067] Fig.10 A structural schematic diagram of an electrical connection structure provided according to an embodiment of the present application is shown.

[0068] Reference numerals:

[0069] 100-insulating cover; 101-inner cavity;

[0070] 200-moving contact; 201-moving contact point;

[0071] 300-static contact; 301-static contact point; 302-connection contact point; 310-monitoring connection part; 311-flange;

[0072] 400-driving structure; 410-actuator; 420-driving mechanism; 411-limiting structure; 421-sleeve; 422-coil; 423-moving assembly; 424-skeleton; 425-conjugate magnet; 4211-moving channel; 4221-second connecting end; 4231-first iron core; 4232-second iron core; 4233-resetting elastic member; 4241-first connecting part; 4242-second connecting part; 4243-third connecting part; 4244-electrical connecting structure; 4245-second mounting structure; 4251-conjugate cavity; 4252-winding cavity; 4253-first magnet; 4254-second magnet; 4231a-receiving groove; 4244a-first connecting column; 4244b-second connecting column;

[0073] 500-monitoring structure; 501-first monitoring structure; 502-second monitoring structure; 510-conductive component; 511-monitoring connection end; 512-monitoring output end; 513-first straight line segment; 514-second straight line segment; 515-bending segment; 516-first conductive connection member; 517-second conductive connection member; 518-first connection end; 5161-notch; 5171-strip tip;

[0074] 600- movable connection part;

[0075] 700-buffer elastic part;

[0076] 800 - circuit board; 801 - first connection point; 810 - first arched connection piece; 802 - second connection point; 820 - second arched connection piece; 830 - first mounting structure;

[0077] 900-protective cover;

[0078] 10-housing; 11-upper housing; 12-lower housing; 13-insulating seal. DETAILED DESCRIPTION

[0079] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0080] In order to ensure the normal operation of the high-voltage circuit and prevent the damage of electrical equipment caused by short circuit in the high-voltage circuit, a relay is usually configured on the high-voltage circuit. The relay acts as a safety switch on the high-voltage circuit and can cut off the high-voltage circuit in time when a short circuit occurs in the high-voltage circuit to ensure the safety of the relay and electrical equipment.

[0081] With the rapid development of new energy technologies, the use of batteries as a power source for vehicles is becoming more and more common, and the circuit structure on vehicles is becoming more and more complex. Ensuring the long-term and stable operation of the vehicle is the primary design point of new energy vehicles.

[0082] New energy vehicles have penetrated into people's daily life, transportation, work and industrial production. New energy vehicles are usually equipped with high-voltage circuits, such as control circuits for controlling vehicle startup and acceleration, and relays with safety protection functions are designed on the high-voltage circuits. Based on the use characteristics of the vehicle (often directly related to personal safety), compared with relays in other electrical equipment, relays installed in new energy vehicles need to have better reliability, such as high sensitivity to respond to short-circuit faults in a timely manner and high stability to stably cut off high-voltage circuits.

[0083] Relays in related technologies usually use auxiliary contacts to achieve the cut-off control of high-voltage circuits. Specifically, the inner cavity of the relay is equipped with a static contact, a moving contact and an auxiliary contact structure, and the auxiliary contact structure includes an auxiliary contact and an external connection contact. One end of the static contact extends out of the inner cavity and forms a connection contact, which is used to connect to the high-voltage circuit. The other end of the static contact is located in the inner cavity and forms a static contact. The moving contact can move in the inner cavity, and the end of the moving contact forms a moving contact. When the moving contact moves to connect the moving contact with the static contact, the high-voltage circuit is connected, and when the moving contact is separated from the static contact, the high-voltage circuit is cut off. The auxiliary contact is integrated on the moving contact, and the auxiliary contact can move with the moving contact. The end of the auxiliary contact forms an auxiliary contact. The auxiliary contact can connect and separate with the external connection contact during its movement to achieve the on-off of the auxiliary control circuit.

[0084] For the above-mentioned auxiliary contacts and external connection contacts, the auxiliary contacts are arranged in the inner cavity, and the external connection contacts adopt a structure similar to that of the static contacts, that is, one end of the external connection contacts is located in the inner cavity, and the other end of the external connection contacts extends out of the inner cavity. The end located in the inner cavity can be connected to and separated from the auxiliary contacts, and the end located outside the inner cavity can be connected to the auxiliary control circuit. The working process of the auxiliary control circuit is as follows: when the moving contact is connected to the static contact to realize the connection of the high-voltage circuit, the auxiliary contact and the external connection contact are also in a connection state that enables the auxiliary control circuit to be connected. When a short circuit or other fault occurs in the high-voltage circuit and after obtaining the information, the auxiliary control circuit can control the auxiliary contact to separate from the external connection contact, thereby controlling the separation of the moving contact and the static contact, thereby achieving the purpose of disconnecting the high-voltage circuit.

[0085] In the above-mentioned relay structure, the acquisition of fault information such as short circuit cannot be completed by the relay itself. The acquisition of this information often lags behind the occurrence of the short circuit fault, resulting in the inability to timely use the auxiliary control circuit to control the high-voltage circuit to be cut off, and the sensitivity is insufficient; on the other hand, an arc will be formed when the moving contact and the static contact are separated. The metal particles formed after the arc is broken can easily damage the auxiliary contact structure or even break through the auxiliary contact structure, causing the auxiliary contact structure to fail and have low stability, and the purpose of cutting off the high-voltage circuit cannot be achieved.

[0086] It is understandable that the relays in the related art cannot yet meet the use requirements of electrical equipment such as new energy vehicles, and the relays have the problem of low reliability during use.

[0087] Based on the above status quo and problems, an embodiment of the present application provides a relay which, when connected to a high-voltage circuit, can actively monitor short-circuit faults and promptly cut off the high-voltage circuit. It has high sensitivity, and this cut-off control is not affected by internal metal particles, and can be stable and effective with high stability.

[0088] To achieve the above purpose, the relay in the embodiment of the present application adopts a new monitoring structure to realize automatic monitoring of the high-voltage circuit. The monitoring structure can form a high-voltage monitoring circuit, and the monitoring structure is formed on the outside of the inner cavity of the relay, which is not affected by metal particles. The high-voltage monitoring circuit is in parallel with the high-voltage circuit, and can monitor the high-voltage circuit formed after the moving contact and the static contact are connected. When the high-voltage circuit is short-circuited, the internal resistance in the high-voltage circuit increases, and the contact internal resistance between the moving contact and the static contact will also change accordingly. The high-voltage monitoring circuit can cut off the high-voltage circuit based on this change. For example, when the contact internal resistance increases and exceeds the set interval, the current flowing through the moving contact and the static contact will decrease. At this time, the high-voltage monitoring circuit can send a signal to the auxiliary control circuit, and the auxiliary control circuit will control the moving contact and the static contact to separate at the first time, thereby achieving the purpose of cutting off the high-voltage circuit. At the same time, in order to improve the reliability of the relay, the auxiliary control circuit adopts a design method different from the auxiliary contact structure, and its arrangement can be isolated from the inner cavity of the relay so that it is not interfered by metal particles.

[0089] In the embodiment of the present application, it should be noted that the function of the auxiliary control circuit is similar to that of the relay in the related art, and its function is to control the connection and separation between the moving contact and the static contact. Unlike the related art, the auxiliary control circuit in the embodiment of the present application can also establish a signal connection with the high-voltage monitoring circuit, can receive the signal of the high-voltage monitoring circuit and can take corresponding actions, such as cutting off the high-voltage circuit. In addition, the embodiment of the present application also redesigns the structure of the auxiliary control circuit so that it is not interfered by metal particles. Here, you can refer to the following embodiment of integrating the auxiliary control circuit with the high-voltage monitoring circuit to a certain extent.

[0090] It should be noted that the relay in the embodiment of the present application can be used in new energy vehicles, and can also be used in other electrical equipment that requires high-voltage drive and needs to have high safety. Of course, the relay can also be applied to ordinary high-voltage circuits.

[0091] Figure 1 A schematic diagram of the structure of a relay provided according to an embodiment of the present application is shown; Figure 2 A cross-sectional view of a relay provided according to an embodiment of the present application is shown; Figure 3 A schematic diagram of the internal structure of a relay provided according to an embodiment of the present application is shown; Figure 4 A cross-sectional view of the internal structure of a relay provided according to an embodiment of the present application is shown.

[0092] Please refer to Figures 1 to 4In the embodiment of the present application, the relay includes an insulating cover 100 , a moving contact 200 , a stationary contact 300 , a driving structure 400 and a monitoring structure 500 .

[0093] The insulating cover 100 has an inner cavity 101, and is made of insulating material, such as ceramic, etc. The insulating cover 100 provides an insulating space for the relay. The switching between the moving contact 200 and the static contact 300 is performed in the inner cavity 101, which can prevent current from leaking out of the relay.

[0094] The insulating cover 100 can be designed into a variety of structures, including cylindrical, square, etc. The specific shape of the insulating cover 100 can be set according to actual needs. Figure 2 and Figure 3 In the example shown, the insulating cover 100 has a square structure.

[0095] The moving contact 200 is disposed in the inner cavity 101, and a moving contact point 201 is formed at the end of the moving contact 200. The stationary contact 300 extends out of the insulating cover 100 from the inner cavity 101, and one end of the stationary contact 300 located in the inner cavity 101 forms a stationary contact point 301, and one end of the stationary contact 300 located outside the inner cavity 101 forms a connecting contact 302.

[0096] It can be understood that the relay is connected to the high-voltage circuit, and it needs two connection points to achieve connection with the high-voltage circuit. Therefore, for the relay, the static contact 300 on the relay can usually be set to two, one as the input end of the high-voltage circuit flowing into the relay, and the other as the output end of the high-voltage circuit flowing out of the relay. Each static contact 300 is formed with a static contact point 301 and a connecting contact point 302, wherein the static contact point 301 can be connected to the moving contact 201, and the connecting contact point 302 is to be connected to the high-voltage circuit.

[0097] In the embodiment of the present application, the moving contact 200 is an integral structure, which is formed with two moving contacts 201. The two moving contacts 201 can be respectively connected to two static contacts 301, thereby forming a current path between the two connecting contacts 302. The direction of current flow in the current path is: high-voltage circuit-connecting contact 302-static contact 301-moving contact 201-moving contact 201-static contact 301-connecting contact 302-high-voltage circuit.

[0098] It should be noted that, for the two stationary contacts 300, they can adopt the same structural shape or different structural shapes. In the embodiment of the present application, the two stationary contacts 300 adopting the same structural shape will be mainly used as an example for explanation. To simplify the description and facilitate understanding, one of the stationary contacts 300 will be described in detail unless otherwise stated, and other structures set based on the stationary contact 300 will also be described uniformly. For example, the monitoring structure 500 in the following embodiment can be understood as a first monitoring structure 501 connected to one stationary contact 300 and a second monitoring structure 502 connected to another stationary contact 300.

[0099] The driving structure 400 can output reciprocating motion, the moving contact 200 is connected to the driving structure 400 , and the moving contact 200 has a connection state in which the moving contact 201 is connected to the stationary contact 301 and a separation state in which the moving contact 201 is separated from the stationary contact 301 when driven by the driving structure 400 .

[0100] The output end of the driving structure 400 can extend into the inner cavity 101 and be connected to the moving contact 200. When the driving structure 400 performs its reciprocating motion, it can drive the moving contact 200 to switch between a connected state and a disconnected state. For example, when the high-voltage circuit needs to be connected, the moving contact 200 is in a connected state, and when the high-voltage circuit needs to be disconnected, the moving contact 200 is in a disconnected state.

[0101] The drive structure 400 can be completely built into the inner cavity 101, or only its output end can extend into the inner cavity 101. In the embodiment in which the drive structure 400 is completely built into the inner cavity 101, the drive structure 400 can be made of a high temperature resistant material, and the drive structure 400 can be configured with a control unit, which can receive signal control to achieve its reciprocating motion. In the embodiment in which only the output end extends into the inner cavity 101, the output end of the drive structure 400 can be made of a high temperature resistant material, and the rest of the drive structure 400 can be made of low-cost materials, which can effectively control the manufacturing cost of the drive structure 400.

[0102] The embodiment of the present application mainly takes the example of extending the output end of the drive structure 400 into the inner cavity 101 to explain the structural composition and principle of the drive structure 400. For the structural composition of the drive structure 400, an electric drive method can be adopted, including servo motor drive, electromagnetic drive, etc., and the control of the drive structure 400 is realized by power or magnetic force. When the power is on, the drive structure 400 can drive the moving contact 200 to move to the connected state, and when the power is off, the drive structure 400 can drive the moving contact 200 to move to the separated state. The embodiment of the present application can realize the connection and disconnection of the high-voltage circuit by the above-mentioned on and off of the power to the drive structure 400. At this time, the power input circuit of the drive structure 400 can form the aforementioned auxiliary control circuit.

[0103] The monitoring structure 500 is connected to the stationary contact 300 and is disposed outside the insulating cover 100 . The monitoring structure 500 is configured to form a current loop for monitoring current information flowing through the moving contact 201 and the stationary contact 301 .

[0104] In combination with the above, it can be understood that the monitoring structure 500 includes two groups, wherein the first monitoring structure 501 is connected to one stationary contact 300, and the second monitoring structure 502 is connected to another stationary contact 300. The first monitoring structure 501 and the second monitoring structure 502 can form a current loop, and the flow direction of the current loop is: high-voltage loop-stationary contact 300-first monitoring structure 501-second monitoring structure 502-stationary contact 300-high-voltage loop. The current loop is in parallel with the aforementioned current path, so the current loop can monitor the current information flowing through the moving contact 201 and the stationary contact 301, that is, the current loop forms the aforementioned high-voltage monitoring loop.

[0105] The above current information mainly refers to the magnitude of the current. As can be seen from the foregoing, when a short circuit fault occurs, the contact internal resistance between the moving contact 201 and the stationary contact 301 increases, and the current becomes smaller.

[0106] In the embodiments of the present application, the first monitoring structure 501 and the second monitoring structure 502 have the same structural form except for local design (for example, the second conductive connecting member 517 in the following embodiments has different lengths, different specific structures, etc.). Therefore, in the following embodiments, the first monitoring structure 501 and the second monitoring structure 502 will be described uniformly.

[0107] In the embodiment of the present application, the monitoring structure 500 can form a current loop for monitoring the current information flowing through the moving contact 201 and the static contact 301, and the current loop is connected in parallel to the outside of the static contact 300. When a short circuit or other fault occurs in the high-voltage circuit, the contact internal resistance between the moving contact 201 and the static contact 301 changes, and the current in the current loop will also change accordingly. The current loop can react instantly and has high sensitivity. Based on the design of the monitoring structure 500 being located outside the insulating cover 100, the current loop is not affected by the internal metal particles and can be used stably for a long time, with high stability and high monitoring accuracy. The relay in the embodiment of the present application can improve the reliability of the relay based on the setting of the monitoring structure 500.

[0108] It is understandable that when the current loop accurately captures information such as a short circuit fault, the information can be transmitted to the auxiliary control loop, and the purpose of cutting off the high-voltage circuit can be achieved by controlling the drive structure 400 to cut off power through the auxiliary control loop.

[0109] In some embodiments, please refer to Figure 3 The portion of the static contact 300 extending out of the insulating cover 100 forms a monitoring connection portion 310 , and the monitoring structure 500 includes a conductive component 510 , one end of the conductive component 510 is connected to the monitoring connection portion 310 and forms a monitoring connection terminal 511 , and the other end of the conductive component 510 forms a monitoring output terminal 512 .

[0110] The conductive component 510 has two ends, one of which is used as a monitoring connection end 511 and connected to the monitoring connection part 310, and the other end is used as a monitoring output end 512. The monitoring output end 512 can be connected to a detection device capable of detecting changes in current information, such as an ammeter, etc. Based on the configuration of the conductive component 510, the above-mentioned current loop can be formed in parallel on the outer side of the static contact 300.

[0111] In the above embodiment, the static contact 301 of the static contact 300 is formed on the surface of the monitoring connection part 310, and the monitoring connection end 511 of the conductive component 510 can be staggered from the static contact 301 and connected to the monitoring connection part 310, and the conductive component 510 can receive current from the static contact 300 and make the current flow into the above detection device. This staggered design can avoid interference with the static contact 301.

[0112] The conductive component 510 in the embodiment of the present application can be designed into a variety of structural forms based on its ability to avoid the insulating cover 100. For example, it can be designed into a straight line form or a bent structure. The conductive component 510 with a bent structure can be arranged according to the internal space of the relay. With respect to the bent structure, the conductive component 510 may include a first straight line segment 513, a second straight line segment 514, and a bent segment 515 connected between the first straight line segment 513 and the second straight line segment 514. The setting of the bent segment 515 enables the conductive component 510 to bypass the insulating cover 100. In the specific implementation, please refer to Figure 3 The first straight section 513 is connected to the static contact 300, the bending section 515 enables the conductive component 510 to bend and avoid the insulating cover 100, and the second straight section 514 can form the aforementioned monitoring output terminal 512, which can be used as a first port to achieve connection with the detection equipment. It can be understood that the monitoring output terminal 512 can extend from various positions of the relay. In order to facilitate the staggered separation with the high-voltage circuit, the monitoring output terminal 512 can extend from the bottom of the relay to form the above-mentioned first port.

[0113] In the embodiment of the present application, the conductive component 510 can be in an integral structure or in a split form. The following embodiments will mainly use the split conductive component 510 as an example for explanation. It can be understood that the split conductive component 510 can adopt an integrated design concept to form an integral conductive component 510. In the split conductive component 510, the conductive component 510 can include a first conductive connector 516 and a second conductive connector 517.

[0114] Figure 5 A schematic structural diagram of a second conductive connector provided according to an embodiment of the present application is shown; Figure 6 A schematic structural diagram of a first conductive connector provided according to an embodiment of the present application is shown; Figure 7 A schematic diagram of the structure of a static contact provided according to an embodiment of the present application is shown. Figure 3 and Figure 5 The first conductive connection member 516 is electrically connected to the monitoring connection portion 310 , and the second conductive connection member 517 is electrically connected to the first conductive connection member 516 .

[0115] Here, designing the conductive component 510 to include a first conductive connector 516 and a second conductive connector 517 can effectively simplify the manufacturing difficulty of the conductive component 510 and also facilitate the establishment of a more stable current loop.

[0116] Specifically, the first conductive connector 516 can form the aforementioned monitoring connection terminal 511, and the second conductive connector 517 can form the aforementioned monitoring output terminal 512. The first conductive connector 516 and the second conductive connector 517 can be manufactured separately. When arranging the conductive assembly 510, the first conductive connector 516 can be first installed on the static contact 300, and then the second conductive connector 517 can be connected to the first conductive connector 516. The above-mentioned manufacturing process and installation process can be simplified.

[0117] In addition, when producing the conductive component 510, the first conductive connector 516 and the second conductive connector 517 can be designed according to the installation environment of the monitoring connection terminal 511 and the monitoring output terminal 512, respectively, so that the conductive component 510 itself has reliable connection strength, and at the same time, sufficient connection strength can be achieved between the conductive component 510 and the static contact 300.

[0118] In some embodiments, please refer to Figure 3 The first conductive connecting member 516 is in a ring-shaped structure and is sleeved on the outer periphery of the monitoring connecting portion 310 .

[0119] The first conductive connector 516 having a ring-shaped structure can form a larger contact area with the static contact 300 , thereby ensuring the connection reliability between the two.

[0120] It is understandable that in the above embodiment, the first conductive connector 516 is designed to have a structure that can adapt to the static contact 300. Figure 3 and Figure 7 The static contact 300 is in a cylindrical structure, and the first conductive connecting member 516 is in a circular ring shape.

[0121] It is understandable that in other embodiments, the specific structure of the first conductive connector 516 can be changed. For example, the first conductive connector 516 can change following the outer contour of the static contact 300. When the outer contour of the static contact 300 is a concave-convex structure, the first conductive connector 516 can also be designed as a concave-convex structure along the circumferential direction.

[0122] In some embodiments, please refer to Figure 3 and Figure 5 , the second conductive connecting member 517 is in a long strip structure.

[0123] The second conductive connector 517 is designed to be long and can extend out of the relay in the shortest path. It is understandable that some parts of the long and long second conductive connector 517 can be bent, for example, the part of the second conductive connector 517 close to the insulating cover 100 can be bent so that it can avoid the insulating cover 100.

[0124] The second conductive connection member 517 may be configured to include the aforementioned first straight segment 513 , the second straight segment 514 , and the bent segment 515 .

[0125] Of course, in other embodiments, the specific structure of the second conductive connector 517 can be reasonably designed according to the internal space of the relay. For example, the second conductive connector 517 can be designed to be curved, arc-shaped, etc.

[0126] The length of the second conductive connector 517 can be selected according to the internal space of the relay and the required arrangement. For example, when the second conductive connector 517 needs to extend from the bottom of the relay, the second conductive connector 517 can be designed to be longer. In addition, it can be appreciated that, based on the different extending positions of the second conductive connector 517, the second conductive connector 517 can be arranged vertically in the relay or tilted in the relay.

[0127] by Figure 3 Taking the orientation shown as an example, the vertical arrangement can be understood as being arranged along the Z direction in the vertical plane, and the inclined arrangement can be understood as being inclined from the Z direction to the X direction in the vertical plane.

[0128] In some embodiments, please refer to Figure 3 , Figure 5 and Figure 6 A notch 5161 is formed on the first conductive connection member 516 , and one end of the second conductive connection member 517 is connected to the notch 5161 .

[0129] Specifically, the first conductive connector 516 extends an extension section at a certain position along its circumference, and the above-mentioned slot 5161 is formed in the extension section. The end of the second conductive connector 517 is formed with a strip tip 5171 that can be fitted into the slot 5161. The cross-section of the strip tip 5171 can be square. One of the two strip tips 5171 can be installed into the slot 5161. After the strip tip 5171 is installed into the slot 5161, the slot 5161 can wrap around the strip tip 5171 to enhance the connection strength between the two. The other strip tip 5171 can serve as a first port connected to the detection device.

[0130] In some embodiments, please refer to Figure 4 and Figure 7 A flange 311 is formed on the monitoring connection portion 310 , and the first conductive connection member 516 is connected to the flange 311 .

[0131] The setting of the flange 311 can achieve reliable connection between the first conductive connector 516 and the monitoring connection part 310. At the same time, the flange 311 can also serve as an installation reference for the first conductive connector 516. When installing the first conductive connector 516 to the static contact 300, the first conductive connector 516 can be tightly fitted on the flange 311.

[0132] In some embodiments, the conductive component 510 may be made of a hard material so that the conductive component 510 has sufficient structural strength. The hard material may be, for example, aluminum. In other embodiments, the conductive component 510 may be made of a soft material so that the conductive component 510 can be arranged according to the internal space of the relay. The soft material may be, for example, copper. The conductive component 510 may be designed as a copper busbar.

[0133] The above description is an example of the conductive component 510. In other embodiments not mentioned in the present application, the conductive component 510 may also be designed into other structural shapes. For example, in some possible embodiments, the conductive component 510 may be integrated into the static contact 300, or, in some possible embodiments, the conductive component 510 may be embedded in the static contact 300.

[0134] In some embodiments, please refer to Figures 2 to 4 The driving structure 400 includes an actuator 410 and a driving mechanism 420 . The actuator 410 is connected to the output end of the driving mechanism 420 , and the moving contact 200 is mounted on the actuator 410 .

[0135] The actuator 410 can serve as the output end of the driving structure 400 and can extend into the inner cavity 101 . The driving mechanism 420 can be disposed outside the inner cavity 101 . The driving mechanism 420 can generate a force to drive the actuator 410 to move so as to realize the movement of the moving contact 200 .

[0136] In combination with the above, the driving mechanism 420 can be driven by a servo motor or an electromagnetic drive. The latter will be used as an example in the following embodiments. It can be understood that when a servo motor is used, a relatively simple setting method can be adopted. For example, the driving mechanism 420 can be designed to include a servo motor, the output shaft of which can be connected to the actuator 410, and a power input circuit can be configured for the servo motor. A switch for controlling the start or shut down of the servo motor can be set on the power input circuit.

[0137] As an electromagnetic drive, in some embodiments, please refer to Figures 2 to 4 The driving mechanism 420 includes a sleeve 421 , a coil 422 and a moving component 423 .

[0138] The sleeve 421 is formed with a moving channel 4211, and the sleeve 421 can be connected to the side of the insulating cover 100 away from the static contact 300. The sleeve 421 can form a smooth surface on its inner side, for example, by machining or surface treatment to make the surface of the moving channel 4211 smooth enough.

[0139] The coil 422 is disposed around the sleeve 421, and the coil 422 is configured to form a magnetic field in the moving channel 4211. The sleeve 421 may be a cylindrical structure, and the coil 422 may be circumferentially surrounded by the outer circumference of the sleeve 421. It is understood that the number of turns of the coil 422 may be set according to actual needs.

[0140] The moving component 423 is disposed in the moving channel 4211 and can move along the moving channel 4211 under the action of a magnetic field. The actuator 410 is mounted on the moving component 423 .

[0141] It can be understood that the moving component 423 can be made of a material that can be attracted or repelled by a magnetic field, such as iron. After the coil 422 is energized, the coil 422 can form a magnetic field inside the sleeve 421, and the magnetic field can generate a force on the moving component 423 so that the moving component 423 moves along the moving channel 4211.

[0142] In combination with the foregoing, the coil 422 can become a part of the power input circuit of the mobile component 423. The coil 422 can form two second ports, which can be connected to a power supply device. The power supply device can be a power supply, etc., which can generate current in the coil 422. At the same time, a switch can be set in the power input circuit. The switch can be used to turn on and off the current in the coil 422, thereby realizing the movement of the mobile component 423 and finally realizing the connection and disconnection of the high-voltage circuit.

[0143] In the above embodiment, it can be understood that the driving structure 400 formed by the sleeve 421, the coil 422 and the moving component 423 can be set on the outside of the inner cavity 101, and the power input circuit formed by the coil 422, the power supply equipment, the switch, etc. can be used as an auxiliary control circuit to realize the on-off control of the high-voltage circuit. The auxiliary control circuit is not affected by the metal particles, so that it can stably control the movement of the moving contact 200 for a long time and has high reliability.

[0144] In some embodiments, please refer to Figures 2 to 4 The moving component 423 includes a first core 4231 and a second core 4232 . The first core 4231 is fixedly arranged. The second core 4232 is arranged opposite to the first core 4231 and can move along the moving channel 4211 . The actuator 410 is connected to the second core 4232 .

[0145] Under the action of the magnetic field, the second iron core 4232 can carry the actuator 410 to move along the moving channel 4211 and gradually approach the first iron core 4231, thereby realizing the connection and disconnection of the high-voltage circuit.

[0146] In some embodiments, please refer to Figure 4 The moving component 423 may also include a reset elastic member 4233, which is connected between the first iron core 4231 and the second iron core 4232. The reset elastic member 4233 can generate a reset force for the second iron core 4232. When the power is cut off, the reset force can drive the second iron core 4232 away from the first iron core 4231, thereby automatically cutting off the high-voltage circuit.

[0147] In some specific embodiments, the reset elastic member 4233 may be a spring, one end of the spring may be connected to the first iron core 4231 , and the other end of the spring may be connected to the second iron core 4232 .

[0148] In some specific embodiments, please refer to Figure 4 A receiving groove 4231 a is further provided on the first iron core 4231 , and the reset elastic member 4233 can be received in the receiving groove 4231 a .

[0149] In some embodiments, please refer to Figure 4 The driving mechanism 420 further includes a skeleton 424, and the coil 422 is connected to the skeleton 424. The skeleton 424 serves as a supporting structure for the coil 422, and the skeleton 424 can be arranged on the periphery of the sleeve 421, for example, the skeleton 424 can be connected to the outer wall surface of the sleeve 421 by mechanical connection.

[0150] The configuration of the skeleton 424 enables the coil 422 to be stably placed in the relay.

[0151] In some embodiments, please refer to Figure 4 The driving mechanism 420 further includes a conjugate magnet 425 , which forms a conjugate cavity 4251 , in which a skeleton 424 is installed. The skeleton 424 and the conjugate magnet 425 form a winding cavity 4252 , in which the coil 422 is arranged.

[0152] The conjugate magnet 425 serves to enhance the magnetic field, and can usually be disposed around the coil 422 , so that the coil 422 can form a stronger magnetic field in the sleeve 421 .

[0153] In some specific embodiments, please refer to Figure 2The conjugate magnet 425 may include a first magnet 4253 and a second magnet 4254, wherein the first magnet 4253 and the second magnet 4254 form an enclosed structure, for example Figure 3 and Figure 4 In the example shown, the first magnet 4253 and the second magnet 4254 form a rectangular parallelepiped structure. In a specific design, the first magnet 4253 is a flat plate structure, which can be connected to the side of the insulating cover 100 away from the static contact 300, and the second magnet 4254 is a concave structure, which can be connected to both ends of the first magnet 4253.

[0154] In order to better realize the function of the conjugate magnet 425, the skeleton 424 can be designed to fit into the conjugate magnet 425, for example, Figure 4 In the example shown, the skeleton 424 includes a first connecting portion 4241, a second connecting portion 4242 and a third connecting portion 4243. The first connecting portion 4241 can form a surface contact with the inner surface of the first magnet 4253, the second connecting portion 4242 can form a surface contact with the outer wall surface of the sleeve 421, and the third connecting portion 4243 can form a surface contact with the inner surface of the second magnet 4254, thereby allowing the coil 422 to be enclosed in the winding cavity 4252.

[0155] In some embodiments, please refer to Figure 4 The actuator 410 includes a connecting rod, and the moving contact 200 is connected to one end of the connecting rod.

[0156] The connecting rod can be connected to the output end of the driving mechanism 420 , for example, the connecting rod can be connected to the second core 4232 . The actuator 410 uses a connecting rod to simplify the structural composition, so that the actuator 410 can be easily inserted into the inner cavity 101 .

[0157] In some embodiments, a limiting structure 411 is formed on the connecting rod, and the relay also includes a movable connection part 600 and a buffer elastic member 700. The movable connection part 600 is movably arranged on the connecting rod, the moving contact 200 is connected to the movable connection part 600, and the buffer elastic member 700 is connected between the movable connection part 600 and the limiting structure 411.

[0158] The limiting structure 411 can limit the movement range of the movable connection part 600. The buffer elastic member 700 can abut the movable connection part 600 against one end of the limiting structure 411 in a free state. After the buffer elastic member 700 is squeezed by the force, the movable connection part 600 can move to the other end of the limiting structure 411.

[0159] The combination of the limiting structure 411, the movable connection part 600 and the buffer elastic member 700 can provide buffer protection for the moving contact 200, and prevent the moving contact 200 from being connected to the static contact 300 with a large force. Specifically, in order to ensure the connection reliability, the moving stroke of the connecting rod can be designed (the design of the moving stroke can be achieved, for example, by setting the distance between the first iron core 4231 and the second iron core 4232) to be larger than the distance between the moving contact 200 and the static contact 300 in the separated state. When the driving mechanism 420 drives the connecting rod to move, the moving contact 200 can first contact the static contact 300. At the moment when the moving contact 200 contacts the static contact 300, the reaction force generated by the static contact 300 can be transmitted to the buffer elastic member 700. Based on the existence of the buffer elastic member 700, the collision between the moving contact 200 and the static contact 300 can be alleviated, thereby protecting the moving contact 200 and the static contact 300. After the moving contact 200 contacts the stationary contact 300, the connecting rod will continue to move. During the subsequent movement of the connecting rod, the buffer elastic member 700 can also buffer and accumulate a larger elastic force, which then acts on the moving contact 200, thereby forming a reliable connection between the moving contact 200 and the stationary contact 300.

[0160] In the above-mentioned embodiment of the driving structure 400, the driving structure 400 can form an upper and lower structure with the insulating cover 100, that is, for the relay, based on Figure 4 In the orientation shown, the insulating cover 100 is located at the upper part and the driving structure 400 is located at the lower part. It should be understood that the upper part is at a higher position in the Z direction and the lower part is at a lower position in the Z direction. In other words, the two second ports (i.e., the two ports of the coil 422) of the power input circuit as an auxiliary control loop can be arranged at the lower part of the relay. In combination with the foregoing, the monitoring output terminal 512 of the conductive component 510 can form two first connection terminals 518 for connecting the detection device, and the first connection terminal 518 can extend from the bottom of the relay. The two second ports of the coil can form two second connection terminals 4221 for connecting the power supply device. In the embodiment of the present application, in order to plan the structural layout of the relay, it is convenient to connect the two first connection terminals 518 to the detection device and the two second connection terminals 4221 to the power supply device, the first connection terminal 518 and the second connection terminal 4221 can be both arranged at the bottom of the relay. On the other hand, the first connection terminal 518 and the second connection terminal 4221 can also be integrated and designed on the same connection platform, which can be realized by the circuit board 800.

[0161] Figure 8 A schematic diagram of the structure of a circuit board provided according to an embodiment of the present application is shown. Figure 8The relay further includes a circuit board 800 , on which a first connection point 801 is formed, the monitoring output terminal 512 is electrically connected to the first connection point 801 , and on which a first connection terminal 518 electrically connected to the first connection point 801 is formed.

[0162] Specifically, refer to Figure 4 and Figure 8 The circuit board 800 is located at the bottom of the relay, and has a first side facing the driving structure 400 and a second side facing away from the driving structure 400. The aforementioned first connection terminal 518 can be formed on the second side of the circuit board 800, that is, the first port formed by the monitoring output terminal 512 can be connected to the first connection point 801, and the first connection point 801 is further connected to the first connection terminal 518.

[0163] From the above description, it can be known that two first connection points 801 and two first connection terminals 518 are designed on the circuit board 800 .

[0164] In the above description, the connection between the first connection point 801 and the first connection end 518 can be achieved by etching a printed circuit on the circuit board 800, and the two first connection ends 518 can be located on the same side of the circuit board 800. Of course, in other embodiments, the two first connection ends 518 can also be located on different sides of the circuit board 800. It can be understood that the arrangement of the two first connection ends 518 can be set according to actual needs.

[0165] In some specific embodiments, a first arched connecting piece 810 is disposed on the circuit board 800 , and the first arched connecting piece 810 forms the first connecting end 518 .

[0166] The coil 422 has a current input terminal and a current output terminal. A second connection point 802 and a second connection terminal 4221 electrically connected to the second connection point 802 are also formed on the circuit board 800 .

[0167] The current input terminal and the current output terminal form the aforementioned two second ports. The two second ports can be integrated onto the circuit board 800 through the connection between the two second ports and the second connection point 802 .

[0168] From the above description, it can be known that two second connection points 802 and two second connection terminals 4221 are designed on the circuit board 800 .

[0169] The two second connection ends 4221 may be arranged according to actual needs. For example, when the two first connection ends 518 are arranged on the same side of the circuit board 800 , the two second connection ends 4221 may be arranged on the other side of the circuit board 800 .

[0170] In some specific embodiments, a second arched connecting piece 820 is disposed on the circuit board 800 , and the second arched connecting piece 820 forms the second connecting end 4221 .

[0171] In the above embodiment, the circuit board 800 can be designed as a plate-like structure, and the first connection end 518 and the second connection end 4221 are arranged at the edge of the circuit board 800. For example, when the circuit board 800 is designed as a rectangular parallelepiped structure, the first connection end 518 and the second connection end 4221 can be distributed on the four corners of the circuit board 800. The first connection point 801 is arranged close to the first connection end 518, and the second connection point 802 is arranged close to the second connection end 4221, so that a shorter printed circuit can be etched on the circuit board 800 to achieve the connection between the first connection point 801 and the first connection end 518 and the connection between the second connection point 802 and the second connection end 4221.

[0172] In combination with the foregoing, in some embodiments, the coil 422 may be disposed on the frame 424 . In order to improve the connection reliability between the coil 422 and the circuit board 800 , the frame 424 may also be structurally designed.

[0173] Fig. 9 A schematic diagram of the structure of a skeleton provided according to an embodiment of the present application is shown; Fig.10 A schematic diagram of an electrical connection structure provided according to an embodiment of the present application is shown. Figure 3 , Figure 4 and Fig. 9 In addition to the aforementioned first connecting part 4241, the second connecting part 4242 and the third connecting part 4243, the skeleton 424 can also form an electrical connection structure 4244, wherein the electrical connection structure 4244 has a first connecting column 4244a formed on the inner side of the skeleton 424, and a second connecting column 4244b formed on the outer side of the skeleton 424, the coil 422 is connected to the first connecting column 4244a, and the second connecting column 4244b is electrically connected to the second connection point 802.

[0174] It is understandable that two electrical connection structures 4244 may be provided to correspond to the two second ports of the coil 422 respectively, the first section and the tail end of the coil 422 may be respectively wound around the two first connection posts 4244a and electrically connected to the first connection posts 4244a, the first connection posts 4244a may be electrically connected to the second connection posts 4244b, and the second connection posts 4244b may be reliably connected to the second connection point 802 on the circuit board 800. Thus, the two second ports of the coil 422 may be designed to the circuit board 800 through the skeleton 424.

[0175] In addition, to achieve the connection of the circuit board 800, please refer to Figure 4, Figure 8 and 9 A first mounting structure 830 may be formed on the circuit board 800 , and a second mounting structure 4245 may be formed on the frame 424 . The first mounting structure 830 may be fixedly connected to the second mounting structure 4245 .

[0176] The second mounting structure 4245 may be formed on the outside of the frame 424 , and the second mounting structure 4245 may include a connecting column. The first mounting structure 830 may be a mounting hole formed on the circuit board 800 , and the connecting column may pass through the mounting hole and be fixed.

[0177] In addition, the first mounting structure 830 and the second mounting structure 4245 may also be combined in other ways, such as a snap-fit ​​structure, a threaded connection structure, etc.

[0178] As mentioned above, the circuit board 800 can be designed as a plate-like structure. In order to form a stable connection, the first mounting structure 830 can be set in the center position of the circuit board 800, the first connection point 801 is located between the first mounting structure 830 and the first connection end 518, and the second connection point 802 is located between the first mounting structure 830 and the second connection end 4221.

[0179] The arrangement of the first mounting structure 830 , the first connection point 801 , the second connection point 802 , the first connection end 518 , and the second connection end 4221 can fully utilize the surface space of the circuit board 800 and improve the structural strength of the circuit board 800 .

[0180] In the above embodiment, the circuit board 800 can serve as a connection platform for the first port and the second port, and the detection equipment and the power supply equipment can be connected to the connection platform. Based on the shape design of the circuit board 800, the purpose of simplifying the circuit design (auxiliary control loop and high-voltage monitoring loop) can be achieved. The first port and the second port can form high-flatness positioning terminals (first connection end 518 and second connection end 4221), which can improve the reliability of the connection.

[0181] In some embodiments, please refer to Figure 3 The relay further includes a protective cover 900 , which is disposed on the outside of the insulating cover 100 to protect the insulating cover 100 .

[0182] A gap may be left between the protective cover 900 and the insulating cover 100, and a functional structure with auxiliary functions may be added in the gap. These functional structures may be, for example, connecting ribs for improving structural strength, insulating structures for improving insulation performance, or thermal insulation structures for increasing thermal insulation effects.

[0183] In combination with the above embodiments, it can be known that the conductive component 510 can avoid the protective cover 900, for example, Figure 3 In the example shown, the conductive component 510 avoids both the insulating cover 100 and the protective cover 900 .

[0184] In some embodiments, please refer to Figure 1 and Figure 2 The relay may further include a housing 10 having an installation cavity, wherein the insulating cover 100 , the moving contact 200 , the stationary contact 300 , the driving structure 400 and the monitoring structure 500 are arranged in the installation cavity, and the stationary contact 300 extends out of the housing 10 .

[0185] The housing 10 is a protective shell of the relay, which can protect various components arranged in the installation cavity.

[0186] In combination with the foregoing, the relay in the embodiment of the present application can be in an upper and lower structure. To adapt to the upper and lower structure, the housing 10 can include an upper shell 11 and a lower shell 12, and the upper shell 11 and the lower shell 12 can be connected in an embedded manner.

[0187] It is understandable that the stationary contact 300 can extend from the upper shell 11 . In an embodiment in which a circuit board 800 is provided, the first connection end 518 and the second connection end 4221 on the circuit board 800 can extend from the bottom of the lower shell 12 .

[0188] In addition, in order to improve insulation and connection reliability, an insulating seal 13 made of an insulating material may be provided between the upper housing 11 and the static contact 300 . The insulating material may be rubber, silicone, or the like.

[0189] In the above embodiments, the connection method between the structures is not limited, and welding or structural limiting can be used. Taking the former as an example, in the above embodiments, the conductive component 510 can be welded to the static contact 300, the first conductive connector 516 and the second conductive connector 517 can be connected by welding, and the second conductive connector 517 can be welded to the circuit board 800, etc.

[0190] It should be noted that, in the above embodiments, for the conductive component 510, it is formed with two first ports (i.e., the monitoring output terminal 512), and the two first ports can be directly connected to the detection device, and the two first ports can also be integrated into the circuit board 800, and the two first ports form two first connection terminals 518 on the circuit board 800; in the above embodiments, for the coil 422, it is formed with two second ports, and the two second ports can be directly connected to the power supply device, and the two second ports can also be integrated into the circuit board 800 through the skeleton 424, and the two second ports form two second connection terminals 4221 on the circuit board 800.

[0191] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0192] In the description of the present application, it should be understood that the terms "including" and "having" and any variations thereof used in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatuses.

[0193] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection, it can also be a detachable connection, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can make the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0194] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A relay, characterized in that: include: An insulating cover (100) having an inner cavity (101); A moving contact (200) is arranged in the inner cavity (101), and a moving contact point (201) is formed at the end of the moving contact (200); A stationary contact (300) extending from the inner cavity (101) through the insulating cover (100), wherein one end of the stationary contact (300) located in the inner cavity (101) forms a stationary contact point (301), and one end of the stationary contact (300) located outside the inner cavity (101) forms a connecting contact point (302); A driving structure (400), the moving contact (200) being connected to the driving structure (400), and the moving contact (200) having, under the drive of the driving structure (400), a connection state in which the moving contact (201) is connected to the stationary contact (301), and a separation state in which the moving contact (201) is separated from the stationary contact (301); and a monitoring structure (500), wherein the monitoring structure (500) is connected to the stationary contact (300) and is arranged on the outside of the insulating cover (100), and the monitoring structure (500) is configured to form a current loop capable of monitoring current information flowing through the moving contact (201) and the stationary contact (301).

2. The relay according to claim 1, characterized in that: The portion of the stationary contact (300) extending out of the insulating cover (100) forms a monitoring connection portion (310), and the monitoring structure (500) comprises: A conductive component (510), one end of which is connected to the monitoring connection portion (310) to form a monitoring connection end (511), and the other end of which forms a monitoring output end (512).

3. The relay according to claim 2, characterized in that: The conductive component (510) comprises: A first conductive connection member (516), the first conductive connection member (516) being electrically connected to the monitoring connection portion (310); and a second conductive connecting member (517), wherein the second conductive connecting member (517) is electrically connected to the first conductive connecting member (516).

4. The relay according to claim 3, characterized in that: The first conductive connecting member (516) is in an annular structure and is sleeved on the outer circumference of the monitoring connecting portion (310).

5. The relay according to claim 4, characterized in that: The second conductive connecting member (517) is in the form of a long strip.

6. The relay according to any one of claims 3 to 5, characterized in that: A notch (5161) is formed on the first conductive connecting member (516), and one end of the second conductive connecting member (517) is connected to the notch (5161).

7. The relay according to any one of claims 3 to 5, characterized in that: A circle of flange (311) is formed on the monitoring connection portion (310), and the first conductive connection member (516) is connected to the flange (311).

8. The relay according to claim 2, characterized in that: The conductive component (510) comprises a first straight line segment (513), a second straight line segment (514), and a bending segment (515) connected between the first straight line segment (513) and the second straight line segment (514).

9. The relay according to any one of claims 1 to 5, characterized in that: The driving structure (400) comprises: Executable (410); and a driving mechanism (420), wherein the actuator (410) is connected to an output end of the driving mechanism (420), and the moving contact (200) is mounted on the actuator (410).

10. The relay according to claim 9, characterized in that: The driving mechanism (420) comprises: A sleeve (421) having a moving channel (4211); a coil (422), disposed around the sleeve (421), and configured to form a magnetic field in the moving channel (4211); and a moving component (423) disposed in the moving channel (4211); the moving component (423) is capable of moving along the moving channel (4211) under the action of the magnetic field; and the actuator (410) is mounted on the moving component (423).

11. The relay according to claim 10, characterized in that: The moving component (423) comprises: A first iron core (4231) is fixedly disposed in the moving channel (4211); and a second iron core (4232) which is arranged opposite to the first iron core (4231) and is movable along the movable channel (4211), and the actuator (410) is connected to the second iron core (4232).

12. The relay according to claim 11, characterized in that: The moving component (423) further comprises: A reset elastic member (4233), wherein the reset elastic member (4233) is connected between the first iron core (4231) and the second iron core (4232).

13. The relay according to claim 10, characterized in that: The driving mechanism (420) further comprises: A frame (424), wherein the coil (422) is connected to the frame (424).

14. The relay according to claim 13, characterized in that: The driving mechanism (420) further comprises: A conjugate magnet (425), wherein the conjugate magnet (425) forms a conjugate cavity (4251), the skeleton (424) is installed in the conjugate cavity (4251), the conjugate magnet (425) and the skeleton (424) form a winding cavity (4252), and the coil (422) is arranged in the winding cavity (4252).

15. The relay according to claim 9, characterized in that: The actuator (410) comprises a connecting rod, and the moving contact (200) is connected to one end of the connecting rod.

16. The relay according to claim 15, characterized in that A limit position structure (411) is formed on the connecting rod, and the relay further comprises: A movable connection part (600) movably arranged on the connecting rod, and the movable contact (200) is connected to the movable connection part (600); and a buffer elastic member (700) connected between the movable connection portion (600) and the limiting structure (411).

17. The relay according to any one of claims 2 to 5, characterized in that: The relay further comprises: A circuit board (800), wherein a first connection point (801) is formed on the circuit board (800), the monitoring output terminal (512) is electrically connected to the first connection point (801), and a first connection terminal (518) electrically connected to the first connection point (801) is formed on the circuit board (800).

18. The relay according to claim 17, characterized in that The circuit board (800) is formed with a second connection point (802) and a second connection end (4221) electrically connected to the second connection point (802), and the driving structure (400) comprises: A coil (422), wherein the coil (422) has a current input terminal and a current output terminal, wherein the current input terminal and the current output terminal are electrically connected to the second connection point (802).

19. The relay according to claim 18, characterized in that The driving structure (400) further includes: A skeleton (424), wherein the skeleton (424) is formed with an electrical connection structure (4244), wherein the electrical connection structure (4244) is formed with a first connection column (4244a) on the inner side of the skeleton (424), and wherein the electrical connection structure (4244) is formed with a second connection column (4244b) on the outer side of the skeleton (424), wherein the coil (422) is connected to the first connection column (4244a), and the second connection column (4244b) is electrically connected to the second connection point (802).

20. The relay according to claim 19, characterized in that A first mounting structure (830) is formed on the circuit board (800), and the frame (424) further comprises: A second mounting structure (4245), wherein the first mounting structure (830) can form a fixed connection with the second mounting structure (4245).

21. The relay according to claim 20, characterized in that The first connection end (518) and the second connection end (4221) are arranged at the edge of the circuit board (800), the first mounting structure (830) is arranged at the center position of the circuit board (800), the first connection point (801) is located between the first mounting structure (830) and the first connection end (518), and the second connection point (802) is located between the second mounting structure (4245) and the second connection end (4221).

22. The relay according to any one of claims 1 to 21, characterized in that: The relay further comprises: A protective cover (900), wherein the protective cover (900) is arranged on the outside of the insulating cover (100).

23. The relay according to any one of claims 1 to 21, characterized in that The relay further comprises: A housing (10), wherein the housing (10) has an installation cavity, wherein the insulating cover (100), the moving contact (200), the stationary contact (300), the driving structure (400) and the monitoring structure (500) are arranged in the installation cavity, and the stationary contact (300) extends out of the housing (10).

24. An electrical equipment, characterized in that: Comprising a relay as claimed in any one of claims 1 to 23.

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