Relay

Abstract

The present disclosure relates to the technical field of electronic control devices, and in particular to a relay. The relay comprises: a housing and a main body assembly, a fixing area is arranged between the housing and the main body assembly, and the main body assembly is fixed in the housing in the fixing area; the housing comprises a first housing; the main body assembly comprises a magnetically conductive part; the magnetically conductive part comprises a bottom plate and a side plate, and the side plate is connected to at least part of the bottom plate in the circumferential direction of the bottom plate; and a noise-damping pad is provided between the side plate and the first housing. By optimizing the structure of the relay, the relay can reduce noise transmitted from the side part of the relay to the outer side, improving the user experience.

Description

relay

[0001] This disclosure claims priority to Chinese patent application No. 202420401442.6 filed on March 1, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the technical field of electronic control devices, and in particular to a relay. Background Art

[0003] As a special relay, high-voltage DC relay is mainly used in electric vehicles to control the charging and discharging of batteries.

[0004] When actually using a relay, there is closing noise and releasing noise inside the relay. Or, during the on-off process of the relay, other parts may collide with each other, generating noise.

[0005] However, general cars need to take into account the low-noise driving experience of passengers, requiring the switching sound of the relay to be small enough, with the noise below 60dB, to avoid giving users a bad experience of loud noise.

[0006] Therefore, there is an urgent need to provide a relay that can reduce noise. Summary of the Invention

[0007] An embodiment of the present disclosure provides a relay that can reduce noise transmitted from the side of the relay to the outside by optimizing its own structure, thereby improving user experience.

[0008] An embodiment of the present disclosure provides a relay, comprising: a housing and a main body assembly, wherein a fixing area is provided between the housing and the main body assembly, and the main body assembly is fixed in the housing in the fixing area; the housing comprises a first shell; the main body assembly comprises a magnetic conductive portion; the magnetic conductive portion comprises a bottom plate and a side plate, wherein the side plate is connected to at least a portion of the bottom plate along the circumference of the bottom plate; and a sound-absorbing pad is provided between the side plate and the first shell.

[0009] According to some disclosed embodiments, an adhesive layer is provided in the fixing area.

[0010] According to some disclosed embodiments, the first shell and the sound-absorbing pad are an integrally formed structure.

[0011] According to some disclosed embodiments, the sound-absorbing pad and the side panel are bonded to each other through the adhesive layer.

[0012] According to some disclosed embodiments, the first shell and the sound-absorbing pad are split structures; the side panel and the sound-absorbing pad are bonded by the adhesive layer, and / or the first shell and the sound-absorbing pad are bonded by the adhesive layer.

[0013] According to some disclosed embodiments, at least one of the sound-absorbing pad, the first shell, and the side panel is provided with a glue storage groove for storing the glue layer.

[0014] According to some disclosed embodiments, the side plate is an annular side plate, and the annular side plate cooperates with the bottom plate to form a cup-shaped structure.

[0015] According to some disclosed embodiments, the side plate includes at least two sub-side plates, and the at least two sub-side plates are spaced apart and distributed along the circumference of the bottom plate.

[0016] According to some disclosed embodiments, the relay further includes a second housing, which is fixed relative to the first housing to form a cavity for accommodating the main body assembly.

[0017] According to some disclosed embodiments, the second shell is provided with an exposure hole;

[0018] The relay further includes a sealing unit, which includes an insulating cover, a static contact, a movable contact piece, and an elastic member, wherein the movable contact piece is placed in the insulating cover and can move relative to the static contact so that both ends of the movable contact piece contact or separate with the static contact; the static contact is fixed relative to the insulating cover, and the side of the static contact facing away from the movable contact piece extends to the outside of the insulating cover and is exposed by the exposure hole; the elastic member is placed on the side of the movable contact piece facing away from the static contact to provide pressure for the contact between the movable contact piece and the static contact.

[0019] One embodiment disclosed above has at least the following advantages or beneficial effects:

[0020] 1. In the relay provided herein, the main assembly is fixed relative to the housing within a fixed area, which can reduce or even prevent the main assembly from shaking relative to the housing, thereby reducing the noise generated within the relay. Furthermore, the relay provided in the embodiment of the present disclosure has a sound-absorbing pad disposed between the side plate of the magnetic conductive portion and the first housing. This pad is placed in the noise propagation path and can provide flexible damping to absorb vibrations, achieving a noise reduction effect, thereby reducing noise transmitted from the side of the relay to the outside and improving the user experience. Furthermore, due to its certain elasticity, the pad can also act as a buffer, reducing shock to the internal structural components of the relay and improving the structural performance of the relay.

[0021] 2. In the relay provided herein, the housing and main assembly are bonded together via an adhesive layer within the fixing area, which enhances structural stability after the housing and main assembly are fixed together, prevents the main assembly from shaking relative to the housing, and reduces noise. Furthermore, the adhesive production process is simple and easy to operate, and the adhesive possesses strong adhesion, enabling reliable and stable bonding of the parts and components it contacts.

[0022] 3. In the relay provided by the present disclosure, when the sound-absorbing pad is fixed to the first housing and / or the magnetic conductive part, the noise reduction capability of the sound-absorbing pad can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is an exploded schematic diagram of a relay provided in an embodiment of the present disclosure;

[0024] FIG2 is a schematic diagram showing the three-dimensional structure of the sealing unit in FIG1 ;

[0025] FIG3 shows a schematic cross-sectional view of the relay in FIG1 ;

[0026] FIG4 shows a cross-sectional schematic diagram of a relay in the related art;

[0027] FIG5 is a schematic diagram showing the three-dimensional structure of a noise-reducing pad in a relay according to an embodiment of the present invention;

[0028] FIG6 is a schematic cross-sectional view of a relay when the muffler pad in FIG5 is applied to the relay;

[0029] FIG7 shows a schematic diagram of a three-dimensional structure of a magnetic conductive part in a relay according to an embodiment of the present disclosure;

[0030] FIG8 shows another schematic diagram of the three-dimensional structure of the magnetic conductive part in the relay provided by the embodiment of the present disclosure.

[0031] The accompanying drawings are described as follows: Related technology: 01, housing; 02, insulating cover; 03, static contact; 04, moving contact piece; 05, elastic member; 06, push rod module; 07, yoke iron plate; 08, coil; 09, static iron core; 010, moving iron core; 011, reset member; 012, U-shaped yoke; The present disclosure: 100, housing; 110, first shell; 120, second shell; 121, exposure hole; 200, main body assembly; 210, sealing unit; 211, insulating cover; 212, static contact; 213, moving contact piece; 214, elastic member; 215, push rod module; 2151, bracket; 2152, support seat; 2153, support rod; 216, yoke iron plate; 217, metal cover; 218, auxiliary contact; 220, electromagnetic Iron unit; 221, coil frame; 222, coil; 223, static iron core; 224, moving iron core; 225, reset member; 226, magnetic conductive part; 2261, bottom plate; 2262, side plate; 2263, through hole; 227, magnetic conductive cylinder; 230, arc extinguishing unit; 231, arc extinguishing magnetic steel; 232, yoke iron clamp; 300, silencer pad; 310, groove; 400, glue layer; S, fixed area; S1, first area; S2, second area. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0033] Figure 1 is an exploded schematic diagram of a relay according to an embodiment of the present disclosure; Figure 2 is a perspective structural diagram of the sealing unit 210 in Figure 1; and Figure 3 is a cross-sectional schematic diagram of the structure in Figure 1. Referring to the structures shown in Figures 1 to 3, the relay includes a housing 100 and a main assembly 200 for switching a load.

[0034] Exemplarily, the main assembly 200 includes a sealing unit 210, an electromagnet unit 220, and an arc extinguishing unit 230. The sealing unit 210 is disposed within the housing 100, and the top of the static contact 212 of the sealing unit 210 is exposed to the outer surface of the housing 100 through the exposure hole 121 of the housing 100. The electromagnet unit 220 and the arc extinguishing unit 230 are both disposed within the housing 100. It will be understood that the relay in Figures 1 to 3 is shown as having two static contacts 212, but this is not limited to this.

[0035] As an example, referring to the structure shown in FIG1 , the housing 100 includes a first shell 110 and a second shell 120 . The second shell 120 and the first shell 110 are fixed to each other to form a chamber for accommodating the sealing unit 210 , the electromagnet unit 220 , and the arc extinguishing unit 230 . It is worth noting that the structure of the first shell 110 and the second shell 120 is not limited to that shown in FIG1 . The first shell 110 and the second shell 120 can be fixed by snapping, interference fit, or gluing. In addition, one of the first shell 110 and the second shell 120 can be a cover structure, and the other can be a cover plate. The specific configuration can be determined according to needs and will not be described in detail here.

[0036] As shown in Figures 1 to 3, the second shell 120 is provided with an exposure hole 121; the sealing unit 210 includes an insulating cover 211, a static contact 212, a movable contact piece 213 and an elastic member 214, wherein the movable contact piece 213 is placed in the insulating cover 211 and can move relative to the static contact 212 so that the two ends of the movable contact piece 213 contact or separate with the two static contacts 212; the static contact 212 is fixed relative to the insulating cover 211, and the side of the static contact 212 facing away from the movable contact piece 213 extends to the outside of the insulating cover 211 and is exposed by the exposure hole 121; the elastic member 214 is placed on the side of the movable contact piece 213 facing away from the static contact 212 to provide pressure for the contact between the movable contact piece 213 and the static contact 212.

[0037] Exemplarily, the insulating cover 211 is a ceramic cover. In addition, it is worth noting that the movable contact piece 213 can contact or separate the static contacts 212, and the two ends of the movable contact piece 213 and the two static contacts 212 form the main contacts of the relay.

[0038] The arc extinguishing unit 230 is used to extinguish the arc generated between the static contact 212 and the movable contact piece 213 of the sealing unit 210 .

[0039] As an example, the arc-extinguishing unit 230 includes two arc-extinguishing magnets 231. The arc-extinguishing magnets 231 can be permanent magnets and each arc-extinguishing magnet 231 can be substantially rectangular. The two arc-extinguishing magnets 231 are respectively disposed on either side of the insulating cover 211 and are arranged opposite each other along the length of the movable contact piece 213.

[0040] It should be noted that by providing two arc-extinguishing magnets 231 disposed opposite to each other, a magnetic field can be formed around the static contact 212 and the movable contact piece 213. Therefore, the arc generated between the two static contacts 212 and the movable contact piece 213 will be stretched away from each other by the magnetic field until it is disconnected, thereby extinguishing the arc.

[0041] The arc extinguishing unit 230 also includes two yoke clamps 232, which are arranged corresponding to the positions of the two arc extinguishing magnets 231. In addition, the two yoke clamps 232 surround the sealing unit 210 and the two arc extinguishing magnets 231. The design of the yoke clamps 232 surrounding the arc extinguishing magnets 231 can prevent the magnetic field generated by the arc extinguishing magnets 231 from spreading outward and affecting the arc extinguishing effect. The yoke clamps 232 are made of soft magnetic material. Soft magnetic materials can include but are not limited to iron, cobalt, nickel, and alloys thereof.

[0042] Continuing to refer to the structure shown in Figure 3, the sealing unit 210 also includes a push rod module 215, which includes a bracket 2151, a support seat 2152 and a support rod 2153. The bracket 2151 includes a base plate, which is located on one side of the moving contact piece 213, and the elastic member 214 is placed between the base plate and the moving contact piece 213; the support rod 2153 is used to drive the contact and separation of the moving contact piece 213 and the static contact 212, and one axial end of the support rod 2153 is fixed to the support seat 2152, and along the axial direction of the support rod 2153, the bracket 2151 is fixed to the side of the support seat 2152 facing away from the support rod 2153.

[0043] It is noteworthy that, along the axial direction of the support rod 2153, the elastic member 214 and the movable contact piece 213 are mounted on the side of the support base 2152 facing away from the support rod 2153, and the elastic member 214 and the movable contact piece 213 are mounted on the bracket 2151. As an example, the bracket 2151 also includes a top plate and two oppositely disposed side plates, which are located on the same side of the bottom plate along the axial direction of the support rod 2153. The top plate is connected to the other ends of the two side plates facing away from the bottom plate to form a frame-shaped structure with the bottom plate and the two side plates. The elastic member 214 is located within the frame-shaped structure. Of course, the structure of the bracket 2151 is not limited to this and can be configured as needed, and the details will not be repeated here.

[0044] Continuing to refer to the structures shown in FIG. 1 and FIG. 3 , the electromagnet unit 220 is used to drive the support rod 2153 to perform reciprocating motion, so that the movable contact piece 213 follows the support rod 2153 .

[0045] It is understandable that the support rod 2153 reciprocates under the driving action of the electromagnet unit 220 , so that the movable contact piece 213 moves along with the support rod 2153 , thereby achieving contact and separation between the movable contact piece 213 and the static contact 212 .

[0046] The sealing unit 210 also includes a yoke plate 216 and a metal cover 217. The insulating cover 211 is provided on one side of the yoke plate 216 to form a contact chamber. The contact chamber is used to accommodate the movable contact piece 213. The yoke plate 216 has a through hole connected to the contact chamber, and the push rod module 215 is movably inserted into the through hole; the metal cover 217 is connected to the side of the yoke plate 216 facing away from the insulating cover 211, and the metal cover 217 covers the through hole on the yoke plate 216. The metal cover 217 and the yoke plate 216 enclose a chamber for accommodating the static iron core 223 and the moving iron core 224 of the electromagnet unit 220, which will be described in detail below.

[0047] As an example, the electromagnet unit 220 includes a coil frame 221, a coil 222, a static iron core 223, a moving iron core 224, a reset member 225, a magnetic conductive portion 226 and a magnetic conductive cylinder 227. The coil frame 221 is in the shape of a hollow cylinder and is formed of an insulating material. The metal cover 217 is passed through the coil frame 221. The coil 222 surrounds the coil frame 221. The static iron core 223 is fixedly set in the metal cover 217, and part of the static iron core 223 extends into the through hole. The static iron core 223 has a through hole, and the through hole is arranged corresponding to the position of the through hole for the support rod 2153 to pass through. The moving iron core 224 is movably set in the metal cover 217 and is arranged opposite to the static iron core 223. The moving iron core 224 is connected to the support rod 2153 and is used to be attracted by the static iron core 223 when the coil 222 is energized. The moving iron core 224 and the support rod 2153 can be connected by screwing, riveting, welding or other methods.

[0048] The reset member 225 is located inside the metal cover 217 and is set between the static iron core 223 and the movable iron core 224. It is used to reset the movable iron core 224 when the coil 222 is powered off. The reset member 225 can be a spring and is sleeved on the outside of the support rod 2153.

[0049] The magnetic tube 227 is sleeved on the outside of the metal cover 217, and the magnetic portion 226 is surrounded by the outside of the magnetic tube 227. The coil frame 221 is placed between the magnetic tube 227 and the magnetic portion 226 to enhance the magnetic conductivity and improve the performance of the electromagnet unit 220.

[0050] Taking a relay from related art as an example, as shown in Figure 4, in actual use, when coil 08 is energized, the moving iron core 010 rapidly attracts the yoke plate 07 or the stationary iron core 09. The smaller the magnetic gap between the moving iron core 010 and the yoke plate 07 or the stationary iron core 09, the greater the attraction. Throughout the power-up process, the acceleration and velocity of the moving iron core 010 continuously increase. "Closing noise" primarily occurs at position A in Figure 4, between the stationary iron core 09 and the moving iron core 010.

[0051] Continuing to refer to Figure 4, before the relay is disconnected, the main contacts are in a closed state, the moving iron core 010 and the static iron core 09 are in a closed state, the elastic member 05 is compressed, and the reset member 011 is also compressed, storing potential energy. When the coil 08 inside the relay is de-energized, the potential energy stored in the elastic member 05 and the reset member 011 will be converted into the kinetic energy of the entire push rod module 06, thereby achieving the separation of the relay contacts. The entire movement will not terminate until the push rod module 06 hits the yoke iron plate 07 (or other stop member). The "release noise" mainly occurs at position B in Figure 4. Due to the large amount of energy, the "release noise" generated by the collision of the push rod module 06 and the yoke iron plate 07 (or other stop member) is relatively large.

[0052] In addition, during the on-off process of the relay, other components may collide with each other and generate noise.

[0053] Figure 4 also illustrates possible noise propagation paths within the relay. As shown in path a in Figure 4, the noise primarily propagates through the solid body, along the yoke plate 07, the side of the magnetically conductive portion 012, and finally to the housing 01. It should be understood that the above examples are merely illustrative of potential locations within the relay where noise may occur.

[0054] Continuing with reference to Figures 1 and 3 , the relay provided in the embodiments of the present disclosure includes a housing 100 and a main body assembly 200. A fixing area S is defined between the housing 100 and the main body assembly 200, and the main body assembly 200 is fixed within the housing 100 in the fixing area S. The housing 100 includes a first shell 110. The main body assembly 200 includes a magnetic conductive portion 226. The magnetic conductive portion 226 includes a bottom plate 2261 and side plates 2262. The side plates 2262 are connected to at least a portion of the bottom plate 2261 along the circumference of the bottom plate 2261. A sound-absorbing pad 300 is provided between the side plates 2262 and the first shell 110. It will be understood that the fixing area S refers to the area between the housing 100 and the main body assembly 200 that can be fixed, and is not limited to the area shown in Figure 3 .

[0055] It should be noted that in the relay provided by the embodiment of the present disclosure, the main body component 200 is fixed relative to the housing 100 in the fixing area S, which can reduce or even avoid the shaking of the main body component 200 relative to the housing 100, and can reduce the noise generated in the relay.

[0056] Referring to Figures 3 and 5 , the relay provided in the disclosed embodiment includes a sound-absorbing pad 300 disposed between the side plate 2262 of the magnetic conductive portion 226 and the first housing 110. Positioned in the noise transmission path, this pad 300 provides flexible damping to absorb vibrations, achieving a noise reduction effect. This reduces noise transmitted from the sides of the relay to the outside, enhancing the user experience. Furthermore, due to its elasticity, the pad 300 also acts as a buffer, damping vibrations within the relay's internal components and improving the relay's structural performance.

[0057] When setting the fixing area S between the housing 100 and the main assembly 200 , there are various possible distributions of the fixing area S.

[0058] As shown in the structure of Figure 3, in one example, the fixing area S includes a first area S1 and a second area S2, the first area S1 is located between the side of the housing 100 where the exposure hole 121 is set and the main body component 200; the second area S2 is located on the other side of the main body component 200 facing away from the first area S1.

[0059] Of course, the range of the fixing area S between the housing 100 and the main assembly 200 is not limited to that shown in FIG3 , which is only for illustrative purposes.

[0060] For ease of understanding, the relay provided in the embodiment of the present disclosure can stipulate that the side of the relay leading out static contact 212 is the top. At this time, the first area S1 can be understood as being located in the top area of ​​the main body component 200; the second area S2 arranged opposite to the first area S1 can be understood as being located in the bottom area of ​​the main body component 200.

[0061] In one embodiment, as shown in FIG3 , an adhesive layer 400 is provided within the fixing area S. In this case, the fixing area S can be understood as an adhesive fixing area. It should be noted that the adhesive layer 400 in the fixing area S, which bonds the housing 100 and the main assembly 200, improves the structural stability of the fixed housing 100 and the main assembly 200, prevents the main assembly 200 from shaking relative to the housing 100, and reduces noise.

[0062] At the same time, the adhesive production process is simple and easy to operate, and the adhesive has strong adhesion, which can reliably and stably bond the parts and components it contacts.

[0063] Of course, other fixing forms can be used between the shell 100 and the main body assembly 200. For example, the shell 100 and the main body assembly 200 can be fixedly connected in the fixing area S by interference fit.

[0064] It is understood that the adhesive layer 400 can be formed by glue or double-sided tape. When glue is used to form the adhesive layer 400, the adhesive layer 400 can be formed by dispensing or pouring glue. For example, glue can be dispensed between the housing 100 and the main assembly 200. After the glue is cured, the adhesive layer 400 shown in Figure 3 is formed, which can bond and fix the housing 100 and the main assembly 200.

[0065] In one embodiment, the first housing 110 and the muffler pad 300 are integrally formed to reduce the number of components in the relay, reduce the number of glue dispensing steps, and reduce assembly difficulty. Specifically, the first housing 110 and the muffler pad 300 can be integrally formed by injection molding.

[0066] In one specific embodiment, the sound-absorbing pad 300 is bonded to the side plate 2262 of the magnetic conductive portion 226 via an adhesive layer 400, effectively fixing the relative position of the first housing 110 and the magnetic conductive portion 226. It should be understood that when assembling a relay formed with this structure, only the adhesive layer 400 needs to be placed between the magnetic conductive portion 226 and the first housing 110, which can reduce assembly difficulty.

[0067] In another embodiment, the first housing 110 and the sound-absorbing pad 300 are separate structures; the side panels 2262 of the magnetic conductive portion 226 are bonded to the sound-absorbing pad 300 via an adhesive layer 400, and / or the first housing 110 and the sound-absorbing pad 300 are bonded via an adhesive layer 400. The adhesive production process is simple and easy to operate, and the adhesive has strong adhesive force, capable of reliably and stably bonding the parts and components it contacts.

[0068] It should be noted that, in the above two embodiments, when the sound-absorbing pad 300 is fixed to the first shell 110 and / or the magnetic conductive portion 226 , the noise reduction capability of the sound-absorbing pad 300 can be enhanced.

[0069] Of course, when the sound-absorbing pad 300 is connected to the first shell 110 and the magnetic conductive portion 226 via the adhesive layer 400, the adhesive layer 400 formed by the magnetic conductive portion 226 or the first shell 110 and the sound-absorbing pad 300 is the adhesive layer 400 used to connect the first shell 110 and the magnetic conductive portion 226. Similarly, when the sound-absorbing pad 300 and the first shell 110 are integrally formed, if the sound-absorbing pad 300 and the magnetic conductive portion 226 are connected via the adhesive layer 400, the adhesive layer 400 is the adhesive layer 400 used to connect the first shell 110 and the magnetic conductive portion 226.

[0070] At this point, a fixed area S is also formed between the side of the housing 100 and the side plate 2262 of the magnetic conductive portion 226, further enhancing the relative stability between the housing 100 and the main assembly 200. It is worth noting that when only the adhesive layer 400 is provided between the housing 100 and the main assembly 200, the adhesive layer 400 may form a noise transmission channel. In the disclosed embodiment, the sound-absorbing pad 300 is disposed between the adhesive layer 400 and the first shell 110 and / or the side plate 2262. The sound-absorbing pad 300 is equivalent to being placed in the solid propagation path of the noise, thereby better facilitating buffering, vibration absorption, and sound insulation and noise reduction.

[0071] Furthermore, it is understood that the sound-absorbing pad 300, which is bonded to the housing 100 or integrally formed with the adhesive layer 400, is in a fixed state. This structural arrangement can prevent the sound-absorbing pad 300 from shaking inside the relay, allowing the sound-absorbing pad 300 to better perform its noise reduction, shock absorption, and cushioning functions.

[0072] To enhance the bonding strength of the sound-absorbing pad 300 with other structures, in one embodiment, at least one of the sound-absorbing pad 300, the first housing 110, and the side panel 2262 is provided with a glue reservoir for storing the adhesive layer 400. For example, the glue reservoir may be provided only on the side of the sound-absorbing pad 300 intended for adhesive fixation. Of course, the glue reservoir can also be provided on the first housing 110 and / or the side panel 2262 as needed, and the details are not further described.

[0073] It is worth noting that the glue storage tank can be used to store double-sided tape or glue. When selecting the material for forming the glue layer 400, it is preferred that the glue layer 400 be double-sided tape or glue with low fluidity, so as to effectively control the area where the glue layer 400 is located as the preset area.

[0074] In one embodiment, one of the side panels 2262 and the sound-absorbing pad 300 is provided with a protrusion, and the other is provided with a groove that mates with the protrusion. For example, in Figure 5 , the sound-absorbing pad 300 is provided with a groove 310, which mates with a protrusion on the first housing 110 in Figure 6 . This structural arrangement facilitates the gluing operation between the side panels 2262 and the sound-absorbing pad 300, not only locating the mating position of the housing 100 and the sound-absorbing pad 300, but also improving the bonding strength between the sound-absorbing pad 300 and the magnetic conductive portion 226, reducing the influence of gravity, and preventing the gluing position of the sound-absorbing pad 300 from shifting.

[0075] It is worth noting that the above figures all show the muffler pad 300 as a single piece. Of course, the muffler pad 300 can also be configured to include multiple sub-pads, which are spaced apart to reduce assembly difficulty and reasonably utilize the space inside the relay.

[0076] Furthermore, the aforementioned sound-absorbing pad 300 may be a multi-layer structure or a single-layer structure. For example, in the case where the sound-absorbing pad 300 includes multiple stacked sound-absorbing layers, adjacent sound-absorbing layers may be fixed (e.g., bonded), with the top layer of the multi-layer sound-absorbing layer being fixed (e.g., bonded) to the first shell 110, and the bottom layer of the multi-layer sound-absorbing layer being bonded to the magnetic conductive portion 226.

[0077] It is worth noting that the above-mentioned sound-absorbing pad 300 can be made of elastic materials such as synthetic rubber, synthetic silicone rubber, synthetic resin, sponge gasket and polyurethane.

[0078] When the magnetic conductive portion 226 in the embodiment of the present disclosure is provided, there are various possible structural forms of the bottom plate 2261 and the side plates 2262 in the magnetic conductive portion 226 .

[0079] 7 , in one embodiment, the side plate 2262 is an annular side plate that cooperates with the bottom plate 2261 to form a cup-shaped structure. It should be understood that the bottom plate 2261 in this embodiment can have a variety of possible shapes. For example, the bottom plate 2261 can be a circular plate or a square plate as shown in FIG. 7 .

[0080] In this embodiment, the annular side plate and the first shell 110 may be provided with sound-absorbing pads 300 at various locations. Alternatively, the sound-absorbing pads 300 may be provided only in a portion of the area between the annular side plate and the first shell 110 .

[0081] Referring to FIG8 , in another embodiment, side panel 2262 includes at least two sub-side panels, which are spaced apart along the circumference of bottom panel 2261. It should be understood that the number of sub-side panels in this embodiment can be set as needed, for example, two, three, or four. For example, FIG8 shows side panel 2262 as including two sub-side panels.

[0082] It is worth noting that, along the circumference of the bottom plate 2261, two adjacent sub-side plates form a gap on the side facing each other. The gap can extend from the top of the magnetic conductive portion 226 to the bottom plate 2261, and the details are not repeated here.

[0083] In this embodiment, a sound-absorbing pad 300 may be provided between each sub-side panel and the first housing 110 . Alternatively, a sound-absorbing pad 300 may be provided between only a portion of the sub-side panels and the first housing 110 .

[0084] Furthermore, it is understood that in this embodiment, the shape of the bottom plate 2261 can be various, and for example, it can be a circular plate or a square plate. In a specific example, the bottom plate 2261 can be a circular plate as shown in FIG8 , in which case each sub-side plate is an arcuate sub-side plate, and each arcuate sub-side plate is convex in a direction away from the other arcuate sub-side plate.

[0085] In one embodiment, the second housing 120 is provided with an exposure hole 121. If the side where the relay leads out the static contact 212 is defined as the top, the second housing 120 can be understood as the top housing, and the first housing 110 can be understood as the bottom housing.

[0086] When the side panel 2262 includes two sub-side panels, and the two sub-side panels are arranged opposite to each other, several specific application examples are now provided in combination with the first shell 110 and the second shell 120 .

[0087] Example 1: An independent sound-absorbing pad 300 is provided, and the second housing 120 and other structural components in the relay (such as the insulating cover 211) are fixed at the top by glue.

[0088] Example 2: The sound-absorbing pad 300 is integrated with the first housing 110 , and the second housing 120 and other structural components in the relay (such as the insulating cover 211 ) are fixed at the top by glue.

[0089] Example 3: An independent noise-absorbing pad 300 is provided, and the second housing 120 and other structural parts in the relay (such as the insulating cover 211) are fixed by glue at the top, and the first housing 110 and the bottom plate 2261 of the magnetic conductive part 226 are fixed by glue at the bottom.

[0090] Example 4: The silencer pad 300 is integrated with the first shell 110, and the second shell 120 and other structural parts in the relay (such as the insulating cover 211) are fixed with glue at the top, and the first shell 110 and the bottom plate 2261 of the magnetic conductive part 226 are fixed with glue at the bottom.

[0091] Finally, it should be noted that: it is understandable that the various embodiments / implementations provided in the present disclosure can be combined with each other without causing any contradiction, and they will not be illustrated one by one here.

[0092] In the disclosed 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 expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the disclosed embodiments can be understood according to the specific circumstances.

[0093] In the description of the disclosed embodiments, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the disclosed embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the disclosed embodiments.

[0094] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the disclosed embodiments. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0095] The above are merely preferred embodiments of the disclosed embodiments and are not intended to limit the disclosed embodiments. Those skilled in the art will readily appreciate that various modifications and variations of the disclosed embodiments are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the disclosed embodiments shall be included within the scope of protection of the disclosed embodiments.

Claims

1. A relay, characterized in that: include: An outer shell and a main body component, a fixing area is provided between the outer shell and the main body component, and the main body component is fixed in the outer shell in the fixing area; the outer shell includes a first shell; the main body component includes a magnetic conductive part; the magnetic conductive part includes a bottom plate and a side plate, and the side plate is connected to at least a portion of the bottom plate along the circumference of the bottom plate; a sound-absorbing pad is provided between the side plate and the first shell.

2. The relay according to claim 1, wherein: An adhesive layer is provided in the fixing area.

3. The relay according to claim 2, characterized in that The first shell and the sound-absorbing pad are an integrally formed structure.

4. The relay according to claim 3, characterized in that The sound-absorbing pad and the side panel are bonded together by the adhesive layer.

5. The relay according to claim 2, characterized in that The first shell and the sound-absorbing pad are of a split structure; the side panel and the sound-absorbing pad are bonded via the adhesive layer, and / or the first shell and the sound-absorbing pad are bonded via the adhesive layer.

6. The relay according to any one of claims 2 to 5, characterized in that: At least one of the sound-absorbing pad, the first shell, and the side plate is provided with a glue storage groove for storing the glue layer.

7. The relay according to any one of claims 1 to 5, characterized in that: The side plate is an annular side plate, and the annular side plate cooperates with the bottom plate to form a cup-shaped structure.

8. The relay according to any one of claims 1 to 5, characterized in that: The side plate includes at least two sub-side plates, and the at least two sub-side plates are spaced apart and distributed along the circumference of the bottom plate.

9. The relay according to any one of claims 1 to 5, characterized in that: The relay further includes a second housing fixed relative to the first housing to form a cavity for accommodating the main body assembly.

10. The relay according to claim 9, characterized in that The second shell is provided with a revealing hole; The relay further includes a sealing unit, which includes an insulating cover, a static contact, a movable contact piece, and an elastic member, wherein the movable contact piece is placed in the insulating cover and can move relative to the static contact so that both ends of the movable contact piece contact or separate with the static contact; the static contact is fixed relative to the insulating cover, and the side of the static contact facing away from the movable contact piece extends to the outside of the insulating cover and is exposed by the exposure hole; the elastic member is placed on the side of the movable contact piece facing away from the static contact to provide pressure for the contact between the movable contact piece and the static contact.

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