High-voltage direct-current relay and high-voltage device

Abstract

The utility model discloses a high-voltage direct-current relay and a high-voltage device. The high-voltage direct-current relay comprises a shell, a base, glue and a yoke part. The base is connected to the shell, and a cavity is defined by the base and the shell; mounting feet are arranged on the shell and / or the base, a connecting seam communicated with the cavity is formed between the shell and the base, and the mounting feet are arranged at the position, close to the connecting seam, of the shell and / or the base; the glue is filled in the connecting seam; the yoke iron part is arranged in the cavity and located at the position, close to the connecting seam, of the cavity. The connecting seam between the shell and the base is filled with the glue, so that the glue seals the connecting seam, and then the glue can prevent strong current on the mounting feet from entering the cavity formed by the shell and the base through the connecting seam, thereby achieving the purpose of isolating the strong current and the weak current, avoiding the problem that the strong current breaks down the yoke iron part, and improving the safety of the relay.

Description

Technical Field

[0001] The present application relates to the technical field of electric control devices, and in particular to a high-voltage direct current relay and a high-voltage device including the relay. Background Art

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. A relay is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] A high-voltage DC relay is a type of relay. A high-voltage DC relay in the prior art includes a housing, a base, and a yoke portion. The housing is connected to the base, and the yoke portion is accommodated in a chamber formed by the housing and the base. During installation, some relays in the prior art need to be installed on high-voltage equipment. The strong electricity generated by the high-voltage equipment can easily break through the yoke portion through the gap between the housing and the base, posing a safety hazard. Utility Model Content

[0004] The embodiments of the present application provide a high-voltage DC relay and a high-voltage device, which achieve the purpose of isolating strong and weak electricity by sealing the connection seam between the shell and the base, thereby improving the problem in the prior art that strong electricity easily breaks through the yoke iron part.

[0005] The high voltage DC relay of the embodiment of the present application comprises:

[0006] shell;

[0007] A base is connected to the shell, and the base and the shell together enclose a chamber; the shell and / or the base are provided with mounting feet, a connection seam communicating with the chamber is formed between the shell and the base, and the mounting feet are provided at a position of the shell and / or the base close to the connection seam;

[0008] Glue, filled in the connection seam; and

[0009] The yoke part is arranged in the chamber and is located at a position of the chamber close to the connecting seam.

[0010] According to some embodiments of the present application, the yoke part includes a yoke plate and a U-shaped yoke, the U-shaped yoke is connected to the yoke plate; the base is connected to the U-shaped yoke;

[0011] The high-voltage DC relay further includes an insulating cover and a coil frame, wherein the insulating cover is arranged on one side surface of the yoke plate in the thickness direction, the coil frame is arranged on the other side surface of the yoke plate in the thickness direction, and the coil frame is accommodated in a space enclosed by the yoke plate and the U-shaped yoke;

[0012] The U-shaped yoke is arranged at a position of the chamber close to the connecting seam.

[0013] According to some embodiments of the present application, the U-shaped yoke comprises:

[0014] A bottom yoke plate connected to the base;

[0015] Two side yoke plates, one end of each of the two side yoke plates is connected to two ends of the bottom yoke plate along the first direction, and the other end of each of the two side yoke plates is connected to two ends of the yoke iron plate along the first direction;

[0016] The coil frame is accommodated in a space surrounded by the bottom yoke plate, the two side yoke plates and the yoke iron plate.

[0017] According to some embodiments of the present application, the base is bonded to a side surface of the bottom yoke plate facing away from the yoke iron plate, the bottom yoke plate has a glue hole, and a protrusion is protruding from a side surface of the base facing the bottom yoke plate, the protrusion is inserted into the glue hole, and a glue layer is filled between the protrusion and the wall of the glue hole.

[0018] According to some embodiments of the present application, the shell is a cover having an opening, and the base is buckled over the opening of the shell to form a chamber for accommodating the yoke part;

[0019] The connection seam is formed between the base and the inner wall surface of the shell, the mounting foot is integrally connected to the outer wall surface of the shell, and the mounting foot and the yoke part are located on the opening side of the shell.

[0020] According to some embodiments of the present application, the opening edge of the shell is formed with a slope, and a glue groove connected to the connecting seam is formed between the slope and the base.

[0021] According to some embodiments of the present application, the base comprises:

[0022] Base plate;

[0023] The side plate is connected to the edge of the bottom plate and inserted into the shell; the side plate is snap-connected with the shell.

[0024] According to some embodiments of the present application, the housing is provided with a card hole, and the side panel has a card block for being inserted into the card hole.

[0025] According to some embodiments of the present application, the mounting foot has a mounting hole.

[0026] According to some embodiments of the present application, a metal sleeve is further provided in the assembly hole. According to some embodiments of the present application, the high voltage DC relay further includes an insulating cover, the yoke portion includes a yoke plate, the insulating cover is provided on one side of the yoke plate in the thickness direction, and the insulating cover and the yoke plate enclose a contact chamber.

[0027] According to some embodiments of the present application, the mounting foot is used to be installed on a high-voltage device, and the glue is used to isolate the mounting foot from the yoke part.

[0028] The high-voltage device of the embodiment of the present application comprises a high-voltage device and any one of the high-voltage DC relays described above, wherein the mounting foot of the high-voltage DC relay is mounted on the high-voltage device.

[0029] One embodiment of the above application has at least the following advantages or beneficial effects:

[0030] In the high-voltage DC relay of the embodiment of the present application, when the mounting foot is installed on the high-voltage equipment, since the connecting seam between the outer shell and the base is filled with glue, the glue seals the connecting seam, and then the glue can prevent the strong electricity on the mounting foot from entering the chamber formed by the outer shell and the base through the connecting seam, thereby achieving the purpose of isolating strong and weak electricity, avoiding the problem of strong electricity breaking through the yoke iron part, and improving the safety of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic top view of a relay according to an exemplary embodiment.

[0032] Figure 2 is along Figure 1 Section view along the AA cutting line.

[0033] Figure 3 is a bottom view schematically showing a relay according to an exemplary embodiment.

[0034] Figure 4 is along Figure 3 Section view along the BB cutting line.

[0035] Figure 5 yes Figure 4 A partial enlarged view of the X in the middle.

[0036] Figure 6 is a perspective schematic diagram of a relay according to an exemplary embodiment.

[0037] Figure 7 is omitted Figure 6Schematic diagram of the housing and base.

[0038] The reference numerals are described as follows:

[0039] 11. Shell

[0040] 11a. Opening

[0041] 111. Opening

[0042] 112. Install the feet

[0043] 1121, assembly hole

[0044] 113. Metal sleeve

[0045] 114. Connection seam

[0046] 115. Glue slot

[0047] 116. Incline

[0048] 117. Card hole

[0049] 12. Base

[0050] 121. Protrusion

[0051] 122. Bottom plate

[0052] 123. Side Panel

[0053] 124. Block

[0054] 21. Insulation cover

[0055] 211. Mounting hole

[0056] 22. Stationary contact

[0057] 24. Frame

[0058] 25. Yoke iron plate

[0059] 251. First Perforation

[0060] 26. Arc extinguishing part

[0061] 261, Yoke clamp

[0062] 262.Permanent magnet

[0063] 27. Metal cover

[0064] 30. Dynamic components

[0065] 31. Moving contact

[0066] 32. First elastic member

[0067] 33. Push rod components

[0068] 40. Magnetic circuit

[0069] 41. Moving iron core

[0070] 42. Static iron core

[0071] 421, Second Perforation

[0072] 43. Coil frame

[0073] 44. Coil

[0074] 45. Magnetic cylinder

[0075] 46. ​​Second elastic member

[0076] 47. U-shaped yoke

[0077] 471, bottom yoke plate

[0078] 4711、Glue hole

[0079] 472, side yoke plate

[0080] D1, first direction

[0081] D2, Second Direction

[0082] D3. Third direction DETAILED DESCRIPTION

[0083] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0084] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0085] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a high-voltage DC relay, which includes a housing 11, a base 12, an insulating cover 21, a yoke iron plate 25, a pair of static contacts 22, an arc extinguishing part 26, a moving component 30 and a magnetic circuit part 40.

[0086] The housing 11 and the base 12 are connected to form a chamber for accommodating the insulating cover 21, at least part of the static contact 22, the arc extinguishing part 26, the moving assembly 30 and the magnetic circuit part 40. The shape formed by the connection of the housing 11 and the base 12 can be a rectangular parallelepiped or a cylindrical shape, which is not limited in the present application.

[0087] As an example, the housing 11 is in the shape of a rectangle with an opening, and the base 12 is roughly a plate-like structure. The base 12 covers the opening of the housing 11 to form a chamber for accommodating the insulating cover 21, at least part of the static contact 22, the arc extinguishing part 26, the moving component 30 and the magnetic circuit part 40.

[0088] Of course, in other embodiments, the housing 11 may be a plate-like structure, and the base 12 may be a rectangular parallelepiped with an opening.

[0089] In one embodiment, the housing 11 and the base 12 are both made of insulating materials, such as plastic, but not limited thereto.

[0090] like Figure 2 As shown, a pair of static contacts 22 are installed on the top of the insulating cover 21, at least part of each static contact 22 is located in the insulating cover 21, and a static contact point is also provided at the bottom of each static contact 22, and the static contact point can be integrally or separately provided at the bottom of the static contact 22. Two openings 111 are provided at positions corresponding to the top of the housing 11 and the insulating cover 21, and the pair of static contacts 22 extend out of the outer surface of the housing 11 through the two openings 111. One static contact 22 serves as a terminal for current inflow, and the other static contact 22 serves as a terminal for current outflow.

[0091] In the embodiment of the present application, two mounting holes 211 are provided on the top of the insulating cover 21, and the positions of the two mounting holes 211 correspond to the positions of the two openings 111, respectively, and a pair of static contacts 22 are respectively provided in the two mounting holes 211. Moreover, each static contact 22 and the insulating cover 21 can be connected by welding, but the present invention is not limited thereto.

[0092] It can be understood that the insulating cover 21 can be made of ceramic material, that is, the insulating cover 21 is a ceramic cover, but it is not limited thereto. For example, in other embodiments, the insulating cover 21 can also be made of plastic material.

[0093] In an embodiment of the present application, the insulating cover 21 is made of ceramic material, and the insulating cover 21 is connected to the yoke iron plate 25 through a frame piece 24. The frame piece 24 can be a metal piece with an annular structure, such as an iron-nickel alloy. One end of the frame piece 24 is connected to the opening edge of the insulating cover 21, for example, by laser welding, brazing, resistance welding, gluing, etc. The other end of the frame piece 24 is connected to the yoke iron plate 25, which can also be done by laser welding, brazing, resistance welding, gluing, etc. A frame piece 24 is arranged between the insulating cover 21 and the yoke iron plate 25 to facilitate the connection between the insulating cover 21 and the yoke iron plate 25.

[0094] Please continue reading Figure 2 The movable assembly 30 is movably disposed in a chamber formed by the housing 11 and the base 12. The movable assembly 30 includes a movable contact 31, a first elastic member 32 and a push rod member 33.

[0095] For the convenience of explanation, the arrangement direction of the pair of stationary contacts 22 is defined as the first direction D1, and the moving direction of the moving assembly 30 is defined as the second direction D2, wherein the first direction D1 is perpendicular to the second direction D2. The direction perpendicular to both the first direction D1 and the second direction D2 is defined as the third direction D3.

[0096] The moving contact 31 is disposed in the insulating cover 21 , and two ends of the moving contact 31 along the first direction D1 are respectively used to contact or separate from the bottoms of a pair of stationary contacts 22 .

[0097] The movable contact 31 may include a contact body and two movable contacts, the movable contacts may be separate parts, and the two movable contacts are connected to both ends of the contact body along the first direction D1. Of course, in other embodiments, the two movable contacts may also be integrally formed at both ends of the contact body along the first direction D1.

[0098] In addition, the movable contact may protrude from the surface of the contact body on one side facing the stationary contact 22 , or may be flush with the surface of the contact body on one side facing the stationary contact 22 .

[0099] It should be noted that the number of the moving contacts 31 included in the moving assembly 30 may be one or more, wherein the number of the moving contacts 31 refers to more than two. When the number of the moving contacts 31 is multiple, the multiple moving contacts 31 are arranged side by side along the third direction D3, and the two ends of each moving contact 31 along the first direction D1 are used to contact or separate with a pair of stationary contacts 22 respectively.

[0100] The two ends of the multiple moving contacts 31 along the first direction D1 are respectively in contact with a pair of stationary contacts 22 to form a reliable parallel circuit. The number of contact points formed by the multiple moving contacts 31 and one stationary contact 22 is greater than or equal to two, achieving the effect of current shunting. In addition, according to the principle that the magnitude of the electric repulsive force is proportional to the square of the current, the magnitude of the electric repulsive force of each contact point is significantly reduced, which is conducive to the improvement of the short-circuit resistance and the reliability of the relay.

[0101] The push rod member 33 is movably disposed in the first through hole 251 of the yoke plate 25 , and part of the push rod member 33 extends out of the side surface of the yoke plate 25 facing the stationary contact 22 , and part of the push rod member 33 extends out of the side surface of the yoke plate 25 facing away from the stationary contact 22 .

[0102] The moving contact 31 is movably mounted on a portion of the push rod member 33 extending from a surface of the yoke iron plate 25 on one side facing the stationary contact 22. The first elastic member 32 is connected to the push rod member 33 and the moving contact 31, and is used to apply an elastic force to the moving contact 31 in the direction of the stationary contact 22 to provide contact pressure.

[0103] As an example, the first elastic member 32 is a spring, but is not limited thereto.

[0104] The side surface of the yoke iron plate 25 facing away from the static contact 22 is also covered with a metal cover 27, and the metal cover 27 covers the first through hole 251 of the yoke iron plate 25. The push rod member 33 extending from the side surface of the yoke iron plate 25 facing away from the static contact 22 is inserted into the metal cover 27.

[0105] Please continue reading Figure 2 The magnetic circuit part 40 includes a moving iron core 41, a stationary iron core 42, a coil frame 43 and a coil 44. The coil frame 43 is in a hollow cylindrical shape and is made of insulating material. The coil frame 43 is located on the side of the yoke iron plate 25 facing away from the stationary contact 22 and surrounds the outer periphery of the metal cover 27. The coil 44 is wound around the outer periphery of the coil frame 43.

[0106] The static iron core 42 is fixedly disposed in the metal cover 27, and part of the static iron core 42 is inserted into the first through hole 251. The static iron core 42 has a second through hole 421, and the second through hole 421 corresponds to the position of the first through hole 251, so that the push rod member 33 can be movably penetrated in the first through hole 251 and the second through hole 421. The moving iron core 41 is movably disposed in the metal cover 27, and is arranged relative to the static iron core 42 in the second direction D2. The moving iron core 41 is connected to the push rod member 33, and is used to be attracted by the static iron core 42 when the coil 44 is energized. The moving iron core 41 and the push rod member 33 can be connected by screwing, riveting, welding or other methods.

[0107] like Figure 2 As shown, the magnetic circuit portion 40 further includes a second elastic member 46, which is located in the metal cover 27 and disposed between the static iron core 42 and the moving iron core 41, and is used to reset the moving iron core 41 when the coil 44 is de-energized.

[0108] In one embodiment, the second elastic member 46 is a spring, and is sleeved on the outer circumference of the push rod member 33 .

[0109] It should be noted that when the coil 44 is energized, the stationary iron core 42 attracts the moving iron core 41 to move upward, and the moving iron core 41 can drive the push rod member 33 to move upward. When the moving contact 31 contacts the stationary contact 22, the moving contact 31 is stopped by the stationary contact 22, and the push rod member 33 will continue to move upward until the overtravel is completed.

[0110] During the overtravel process, the first elastic member 32 can provide elastic force to the moving contact 31 after being squeezed by the push rod member 33 to provide contact pressure.

[0111] like Figure 2 As shown, the magnetic circuit part 40 also includes a U-shaped yoke 47 and a magnetic tube 45. The U-shaped yoke 47 includes a bottom yoke plate 471 and two side yoke plates 472, the two side yoke plates 472 are respectively connected to the two ends of the bottom yoke plate 471 along the first direction D1, and the two side yoke plates 472 are arranged opposite to each other along the first direction D1. The bottom yoke plate 471 is arranged on the side of the coil frame 43 facing away from the static contact 22, and the ends of the two side yoke plates 472 away from the bottom yoke plate 471 are respectively connected to the two ends of the yoke plate 25 along the first direction D1. The coil 44, the coil frame 43, the metal cover 27 and the moving iron core 41 are accommodated in the space surrounded by the bottom yoke plate 471 and the two side yoke plates 472 of the yoke plate 25 and the U-shaped yoke 47. The magnetic tube 45 is sleeved on the outer periphery of the metal cover 27, and the magnetic tube 45 is located between the metal cover 27 and the coil frame 43.

[0112] Continue reading Figure 2 The base 12 is bonded to the side surface of the bottom yoke plate 471 facing away from the yoke iron plate 25. The bottom yoke plate 471 has a glue hole 4711. The base 12 has a protrusion 121 protruding from the side surface facing the bottom yoke plate 471. The protrusion 121 is inserted into the glue hole 4711, and a glue layer is filled between the protrusion 121 and the wall surface of the glue hole 4711.

[0113] In the embodiment of the present application, the base 12 is bonded to the side surface of the bottom yoke plate 471 facing away from the yoke plate 25 through the glue dispensing process, thereby improving the connection reliability between the base 12 and the U-shaped yoke 47. At the same time, the bottom yoke plate 471 has a glue hole 4711, and the base 12 has a protrusion 121 inserted into the glue hole 4711. The glue can penetrate between the protrusion 121 and the hole wall of the glue hole 4711 to form a glue layer, which increases the bonding area of ​​the glue, thereby further improving the connection strength between the base 12 and the U-shaped yoke 47.

[0114] like Figure 2 As shown, the arc extinguishing part 26 includes a permanent magnet 262, and the permanent magnet 262 is arranged on the outer side of the insulating cover 21. By arranging the permanent magnet 262 on the outer periphery of the insulating cover 21, a magnetic field can be formed around the static contact 22 and the moving contact 31. Therefore, through the effect of the magnetic field, the arc generated between the static contact 22 and the moving contact 31 will be stretched in a direction away from each other, thereby achieving arc extinguishing.

[0115] In the embodiment of the present application, the number of the permanent magnets 262 is two, and the two permanent magnets 262 are respectively located on two outer side surfaces of the insulating cover 21 along the first direction D1.

[0116] The arc extinguishing part 26 further includes a yoke clamp 261, and a permanent magnet 262 is disposed between a side surface of the yoke clamp 261 facing the insulating cover 21 and an outer peripheral surface of the insulating cover 21. By designing that the yoke clamp 261 surrounds the permanent magnet 262, it is possible to prevent the magnetic field generated by the permanent magnet 262 from spreading outward and affecting the arc extinguishing effect.

[0117] In one embodiment, the yoke clip 261 is made of a soft magnetic material, which may include but is not limited to iron, cobalt, nickel, and alloys thereof.

[0118] It is understandable that the number of the yoke clips 261 can be one or two. When the number of the yoke clips 261 is one, the yoke clip 261 forms an annular structure surrounding the outer periphery of the insulating cover 21. When the number of the yoke clips 261 is two, each yoke clip 261 can be U-shaped and arranged opposite to each other along the first direction D1, and the two yoke clips 261 respectively surround the two ends of the insulating cover 21 along the first direction D1.

[0119] like Figures 3 to 5 As shown, the shell 11 and / or the base 12 are provided with mounting feet 112, and a connecting seam 114 connected to the chamber is formed between the shell 11 and the base 12, and the mounting feet 112 are arranged at a position of the shell 11 and / or the base 12 close to the connecting seam 114; glue is filled in the connecting seam 114; the yoke part is arranged in the chamber, and is located at a position of the chamber close to the connecting seam 114.

[0120] In one embodiment, the yoke portion includes a yoke plate 25 and a U-shaped yoke 47 .

[0121] In the relay of the embodiment of the present application, when the mounting foot 112 is installed on the high-voltage equipment, since the connecting seam 114 between the outer shell 11 and the base 12 is filled with glue, the glue seals the connecting seam 114, and then the glue can prevent the strong electricity on the mounting foot 112 from entering the chamber formed by the outer shell 11 and the base 12 through the connecting seam 114, thereby achieving the purpose of isolating strong and weak electricity, avoiding the problem of strong electricity breaking through the yoke iron part, and improving the safety of the relay.

[0122] It can be understood that, in one embodiment, the mounting foot 112 can be formed on the housing 11; in another embodiment, the mounting foot 112 can be formed on the base 12; in yet another embodiment, the housing 11 and the base 12 jointly form the mounting foot 112.

[0123] like Figure 4 and Figure 5 As shown, the housing 11 is a cover having an opening 11a, and the base 12 is buckled over the opening 11a of the housing 11 to form a chamber for accommodating the yoke portion. The U-shaped yoke 47 is disposed near the connection seam 114 in the chamber.

[0124] In the embodiment of the present application, the connection seam 114 is sealed with glue to prevent the strong current on the mounting foot 112 from penetrating the U-shaped yoke 47 through the connection seam 114 .

[0125] A connection seam 114 is formed between the base 12 and the inner wall surface of the housing 11 . The mounting foot 112 is integrally connected to the outer wall surface of the housing 11 . The mounting foot 112 and the yoke portion are located on the opening 11 a side of the housing 11 .

[0126] Furthermore, an inclined surface 116 is formed at the edge of the opening 11a of the housing 11, and a glue groove 115 communicating with the connection seam 114 is formed between the inclined surface 116 and the base 12. The glue groove 115 is used to contain glue to improve the effect of sealing the connection seam 114 with glue.

[0127] like Figure 5 As shown, the base 12 includes a bottom plate 122 and a side plate 123 . The side plate 123 is connected to the edge of the bottom plate 122 and inserted into the housing 11 . The side plate 123 is snap-fitted to the housing 11 .

[0128] like Figure 5 and Figure 6 As shown, the housing 11 is provided with a clamping hole 117, and the side plate 123 has a clamping block 124 for clamping into the clamping hole 117. The base 12 and the housing 11 are assembled by clamping the clamping block 124 with the clamping hole 117.

[0129] In one embodiment, the latch hole 117 may penetrate the inner wall surface and the outer wall surface of the housing 11. In other embodiments, the latch hole 117 may also be recessed from the inner wall surface of the housing 11 and may not penetrate the outer wall surface of the housing 11.

[0130] like Figures 5 to 7 As shown, the mounting foot 112 has an assembly hole 1121, and a metal sleeve 113 is further provided in the assembly hole 1121. By providing the metal sleeve 113 in the assembly hole 1121 of the mounting foot 112, the strength of the mounting foot 112 can be improved, thereby improving the connection reliability between the mounting foot 112 and the high-voltage device.

[0131] It is understandable that the hole in the metal sleeve 113 may be a smooth hole or a threaded hole, and the present application does not limit this.

[0132] In other embodiments, the metal sleeve 113 may not be provided in the assembly hole 1121 of the mounting foot 112, and the relay may be installed by directly passing a fastener (not shown) through the assembly hole 1121 of the mounting foot 112. In this case, the assembly hole 1121 of the mounting foot 112 may be a plain hole or a threaded hole.

[0133] In one implementation, the relay of the embodiment of the present application may be a high voltage DC relay, but is not limited thereto.

[0134] In another aspect of the present application, a high voltage device is provided, comprising a high voltage device and a relay according to any one of the above embodiments. The mounting foot 112 of the relay is mounted on the high voltage device.

[0135] It should be noted that high voltage equipment refers to equipment with a rated voltage of 250V and above.

[0136] The relay and high voltage device of the embodiment of the present application have at least the following advantages and beneficial effects:

[0137] In the relay of the embodiment of the present application, when the mounting foot 112 is installed on the high-voltage equipment, since the connecting seam 114 between the outer shell 11 and the base 12 is filled with glue, the glue seals the connecting seam 114, and then the glue can prevent the strong electricity on the mounting foot 112 from entering the chamber formed by the outer shell 11 and the base 12 through the connecting seam 114, thereby achieving the purpose of isolating strong and weak electricity, avoiding the problem of strong electricity breaking through the yoke iron part, and improving the safety of the relay.

[0138] It is understandable that the various embodiments / implementations provided in the present application can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0139] In the application embodiments, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the application embodiments can be understood according to the specific circumstances.

[0140] In the description of the application embodiments, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the application embodiments.

[0141] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0142] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. A high voltage DC relay, characterized in that: include: shell; A base is connected to the shell, and the base and the shell together enclose a chamber; the shell and / or the base are provided with mounting feet, a connection seam communicating with the chamber is formed between the shell and the base, and the mounting feet are provided at a position of the shell and / or the base close to the connection seam; Glue, filled in the connection seam; as well as The yoke part is arranged in the chamber and is located at a position of the chamber close to the connecting seam.

2. The high voltage DC relay according to claim 1, characterized in that: The yoke part includes a yoke plate and a U-shaped yoke, wherein the U-shaped yoke is connected to the yoke plate; and the base is connected to the U-shaped yoke; The high-voltage DC relay further includes an insulating cover and a coil frame, wherein the insulating cover is arranged on one side surface of the yoke plate in the thickness direction, the coil frame is arranged on the other side surface of the yoke plate in the thickness direction, and the coil frame is accommodated in a space enclosed by the yoke plate and the U-shaped yoke; The U-shaped yoke is arranged at a position of the chamber close to the connecting seam.

3. The high voltage DC relay according to claim 2, characterized in that: The U-shaped yoke comprises: A bottom yoke plate connected to the base; Two side yoke plates, one end of each of the two side yoke plates is connected to two ends of the bottom yoke plate along the first direction, and the other end of each of the two side yoke plates is connected to two ends of the yoke iron plate along the first direction; The coil frame is accommodated in a space surrounded by the bottom yoke plate, the two side yoke plates and the yoke iron plate.

4. The high voltage DC relay according to claim 3, characterized in that: The base is bonded to a surface of the bottom yoke plate facing away from the yoke iron plate, the bottom yoke plate has a glue hole, a protrusion is protruding from a surface of the base facing the bottom yoke plate, the protrusion is inserted into the glue hole, and a glue layer is filled between the protrusion and the wall of the glue hole.

5. The high voltage DC relay according to any one of claims 1 to 4, characterized in that: The shell is a cover having an opening, and the base is buckled and covered on the opening of the shell to form a chamber for accommodating the yoke part; The connection seam is formed between the base and the inner wall surface of the shell, the mounting foot is integrally connected to the outer wall surface of the shell, and the mounting foot and the yoke part are located on the opening side of the shell.

6. The high voltage DC relay according to claim 5, characterized in that: The opening edge of the shell is formed with an inclined surface, and a glue groove communicating with the connecting seam is formed between the inclined surface and the base.

7. The high voltage DC relay according to claim 5, characterized in that: The base comprises: Base plate; The side plate is connected to the edge of the bottom plate and inserted into the shell; the side plate is snap-connected with the shell.

8. The high voltage DC relay according to claim 7, characterized in that: The shell is provided with a clamping hole, and the side plate has a clamping block for clamping into the clamping hole.

9. The high voltage DC relay according to any one of claims 1 to 4, characterized in that: The mounting foot has a mounting hole.

10. The high voltage DC relay according to claim 9, characterized in that: A metal sleeve is also arranged in the assembly hole.

11. The relay according to claim 1, characterized in that: The high-voltage DC relay further comprises an insulating cover, the yoke part comprises a yoke plate, the insulating cover is arranged on one side of the yoke plate in the thickness direction, and the insulating cover and the yoke plate enclose a contact chamber.

12. The relay according to claim 1, characterized in that: The mounting foot is used for mounting on a high-voltage device, and the glue is used for isolating the mounting foot from the yoke portion.

13. A high-voltage device, characterized in that: include: High voltage equipment; The high-voltage DC relay according to any one of claims 1 to 12, wherein the mounting foot of the high-voltage DC relay is mounted on the high-voltage equipment.

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