relay

Abstract

This application discloses a relay comprising: a housing forming a contact chamber; and a first magnetically conductive member disposed within the contact chamber and mounted to the housing by fasteners; wherein a mounting hole is formed in the housing, and the fasteners pass through the mounting hole to mount the first magnetically conductive member to the housing. According to the relay of this application, by using fasteners to mechanically mount the first magnetically conductive member to the housing, a series of problems arising from the use of adhesives can be avoided.

Description

Technical Field

[0001] This application generally relates to a relay. Background Technology

[0002] In the field of electrical control, relays are widely used as a crucial control element. A conventional relay mainly consists of a stationary contact, a moving contact, an electromagnetic system, and upper and lower magnetic blocks for magnetic circuit conduction. Its working principle is that when the electromagnetic system is energized, it generates a magnetic field, driving the push rod assembly, which in turn moves the moving contact towards the stationary contact until they make contact, thus completing the circuit. At this point, the upper and lower magnetic blocks play a key role. When the stationary and moving contacts are in contact, they generate a magnetic field under the influence of a large current. This magnetic field, through mutual attraction, ensures that the moving and stationary contacts remain in close contact, effectively preventing them from separating and thus guaranteeing stable circuit conduction. Utility Model Content

[0003] One object of this application is to provide a relay that can reduce the installation time of the magnetic component while improving the durability of the product.

[0004] Another objective of this application is to provide a relay that achieves good sealing performance.

[0005] According to a first aspect of this application, a relay is provided, comprising:

[0006] Housing, the housing forming a contact chamber; and

[0007] A first magnetically conductive component is disposed within the contact cavity and mounted to the housing by fasteners;

[0008] The housing has mounting holes, through which the fasteners attach the first magnetic component to the housing.

[0009] By using fasteners to mount the first magnetic component onto the housing, the use of adhesives is avoided, thus eliminating a range of problems associated with adhesives. This mechanical mounting method ensures that the first magnetic component is securely attached to the housing with virtually no risk of detachment.

[0010] In some embodiments of the relay, the relay further includes a cap that covers the mounting hole and the fastener to seal the contact chamber.

[0011] By using a cap for sealing, the contact chamber is isolated from the external environment, avoiding leakage problems that may be caused by the mounting hole.

[0012] In some embodiments of the relay, the cap is welded to the housing around the mounting hole.

[0013] The welding method can firmly fix the cap to the housing, and the welding itself can form a seal, thus sealing the connection between the cap and the housing and enhancing the sealing effect of the relay.

[0014] In some embodiments of the relay, a reinforcement is formed along the housing between the cap and the mounting hole.

[0015] Forming a reinforcement between the cap and the mounting hole can enhance the connection strength, and the reinforcement can be formed simultaneously when the cap is welded to the housing, so there is no increase in operational complexity, time and cost.

[0016] In some embodiments of the relay, the reinforcement extends further into the mounting hole to contact the fastener passing through the mounting hole.

[0017] The reinforcement extends into the mounting hole and contacts the fastener, which can effectively seal the mounting hole and the fastener, enhance the sealing effect of the relay, and at the same time improve the connection strength of the fastener in the mounting hole, enhance the installation firmness of the fastener, and reduce the risk of fastener loosening.

[0018] In some embodiments of the relay, the upper part of the mounting hole is formed with a flared portion and / or the end of the fastener is formed with a tapered portion to form a gap between the mounting hole and the fastener, and the reinforcing portion further extends into the gap to fill the gap and contact the fastener.

[0019] In some embodiments of the relay, the upper part of the mounting hole is formed with a flared portion and / or the end of the fastener is formed with a tapered portion to form a gap between the mounting hole and the fastener, the gap being filled with a sealing material.

[0020] Creating a gap between the mounting hole and the fastener facilitates the formation of a sealing structure. When the reinforcement extends into the gap, the cap can be welded to the housing simultaneously, creating a reinforcement that strengthens the connection and provides a seal within the gap, thus providing both reinforcement and sealing functions.

[0021] In some embodiments of the relay, a boss is formed on the housing surrounding the mounting hole, and the cap is fixed to the boss.

[0022] A boss can increase the thickness of the housing and enhance the structural strength around the mounting holes. A boss can serve as a reference and base for mounting caps; that is, the cap can be mounted onto the boss, and alignment with the mounting holes can be easily achieved by using the boss as a reference during installation.

[0023] In some embodiments of the relay, the mounting hole is a threaded hole, and the fastener is a threaded fastener and is configured to be screwed into the mounting hole.

[0024] In some embodiments of the relay, the fastener includes a head section, a tail section, and an intermediate section between the head section and the tail section, the cross-section of the head section being larger than the cross-sections of the intermediate section and the tail section, and the tail section extending into the mounting hole.

[0025] This three-section fastener structure is simple and inexpensive, yet provides excellent fastening, preventing the fastened structure from easily falling off.

[0026] In some embodiments of the relay, the first magnetic conductive member has a mounting portion, and the fastener mounts the first magnetic conductive member onto the housing through the mounting portion and the mounting hole.

[0027] In some embodiments of the relay, the mounting portion includes a guide section and an abutment section, a middle section of the fastener extends along the guide section, and a head section abuts against the abutment section to clamp the first magnetically conductive member between the head section and the housing.

[0028] In some embodiments of the relay, the mounting portion further includes a recessed section in which the head section of the fastener is located.

[0029] This mating structure of the fastener and the mounting part facilitates the fastener's installation of the first magnetically conductive component onto the housing without interfering with the function of the first magnetically conductive component.

[0030] In some embodiments of the relay, the mounting portion is in the form of a through hole penetrating the first magnetic conductive member, or in the form of a groove extending inward from the edge of the first magnetic conductive member.

[0031] The through-hole type mounting part is easy to process and assemble; the groove type mounting part is easy to process and assemble, and the alignment of fasteners with the mounting holes is easier.

[0032] In some embodiments of the relay, an elastic element is provided between the head section and the first magnetic conductive member to bias the first magnetic conductive member toward the housing.

[0033] According to the relay of this application, by using fasteners to mechanically connect the first magnetic component to the housing, a series of problems caused by using adhesives can be avoided. At the same time, the cap can provide a good sealing effect. The reinforcement can be formed and function at the same time as the cap is welded to the housing, further enhancing the structural strength and sealing performance. Attached Figure Description

[0034] A better understanding of various aspects of this application will be achieved by reading the following detailed description in conjunction with the accompanying drawings, in which:

[0035] Figure 1 This is a cross-sectional perspective view of a relay according to some embodiments of this application;

[0036] Figure 2 This is a cross-sectional view of a relay according to some embodiments of this application;

[0037] Figure 3 This is a partially enlarged cross-sectional perspective view of a relay according to some embodiments of this application;

[0038] Figure 4 This is a partially enlarged cross-sectional view of a relay according to some embodiments of this application;

[0039] Figure 5 This is a perspective view of the magnetic block of a relay according to some embodiments of this application; and

[0040] Figure 6 This is another perspective view of the magnetic block of a relay according to some embodiments of this application.

[0041] List of reference numerals

[0042] Relay 1;

[0043] 10 stationary contact element; 11 housing; 12 contact chamber; 13 mounting hole; 14 boss; 132 flared part; 134 gap;

[0044] Moving contact element 20;

[0045] First magnetic conductive component 30; mounting part 32; guiding part 322; abutting part 324; recessed part 326;

[0046] Second magnetic conductive component 40;

[0047] Push assembly 50; base 52; push rod 54; spring 56;

[0048] Fastener 60; Head section 62; Tail section 64; Middle section 66; Tapered section 642;

[0049] Cap 70; Reinforcement 72. Detailed Implementation

[0050] The present application will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present application. However, it should be understood that the present application can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present application more complete and to fully illustrate the scope of protection of the present application to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0051] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of certain features may be modified in the drawings.

[0052] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this application. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0053] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the related listed items. The terms “between X and Y” and “between approximately X and Y” used in this specification should be interpreted as including both X and Y. The term “between approximately X and Y” used in this specification means “between approximately X and approximately Y,” and the term “from approximately X to Y” used in this specification means “from approximately X to approximately Y.”

[0054] In the specification, when an element is described as being "on," "attached," "connected," "coupled," or "in contact" with another element, the element can be directly located on, attached to, connected to, coupled to, or in contact with the other element, or there may be intermediate elements present. Conversely, when an element is described as being "directly" located on, directly attached to, directly connected to, directly coupled to, or directly in contact with another element, no intermediate elements are present. In the specification, the description of a feature being arranged "adjacent" to another feature can mean that a feature has a portion overlapping with the adjacent feature or a portion located above or below the adjacent feature.

[0055] In the specification, spatial relation terms such as "up," "down," "left," "right," "front," "back," "high," and "low" describe the relationship between one feature and another in the accompanying drawings. It should be understood that spatial relation terms include not only the orientation shown in the drawings but also the different orientations of the device during use or operation. For example, when the device in the drawings is inverted, a feature previously described as "below" other features can now be described as "above" other features. The device can also be oriented in other ways (rotated 90 degrees or in other orientations), in which case the relative spatial relationships will be explained accordingly.

[0056] In the field of electrical control, relays are widely used as a crucial control element. A conventional relay mainly consists of a stationary contact, a moving contact, an electromagnetic system, and upper and lower magnetic blocks for magnetic conduction. Its working principle is that when the electromagnetic system is energized, it generates a magnetic field that attracts the moving contact towards the stationary contact until they make contact, thus completing the circuit. At this point, the upper and lower magnetic blocks play a key role. When the stationary and moving contacts are in contact, the mutual attraction between them ensures that the moving and stationary contacts remain in close contact, effectively preventing them from separating and thus guaranteeing stable circuit continuity.

[0057] refer to Figure 1 and Figure 2 , Figure 1 A cross-sectional perspective view of a relay 1 according to some embodiments of this application is shown. Figure 2 A cross-sectional view of a relay 1 according to some embodiments of this application is shown. For clarity, the mutually orthogonal X direction (also referred to as the length direction), Y direction (also referred to as the width direction), and Z direction (also referred to as the height direction) can be defined below, such as... Figure 1 As shown, the moving contact moves along the Z direction to make contact with the stationary contact.

[0058] The relay 1 may include a stationary contact element 10 and a moving contact element 20. The stationary contact element 10 extends into a contact chamber 12 formed by the housing 11, and the moving contact element 20 is disposed in the contact chamber 12. The housing 11 may be made of materials such as plastic, ceramic, or metal, for example, polybutylene terephthalate (PBT), polycarbonate (PC), polyamide (PA), or polyoxymethylene (POM).

[0059] During the operation of relay 1, the moving contact element 20 moves along the height direction toward the stationary contact element 10 to make contact with the stationary contact element 10 within the contact chamber 12, thereby achieving circuit continuity. In the illustrated embodiment, relay 1 is shown to have two stationary contact elements 10 (only one stationary contact element is shown in the figure due to cross-sectional view) and one moving contact element 20, the lead-out end of the stationary contact element 10 being used to contact the moving contact element 20. Those skilled in the art will understand that other suitable forms and numbers of stationary contact elements 10 and moving contact elements 20 can also be used as needed. The stationary contact elements 10 and moving contact elements 20 can be made of conductive materials, such as silver-based alloys, copper-based alloys, precious metal materials, or any other suitable materials known in the art, such as silver-nickel, silver-cadmium oxide, silver-tin oxide, silver-tungsten, silver-plated copper, copper-chromium, gold, platinum, palladium, tungsten carbide, etc.

[0060] Typically, the relay 1 may also include a push assembly 50 configured to push the moving contact element 20 toward the stationary contact element 10 along the height direction to make contact with the stationary contact element 10. The push assembly 50 may include a base 52 and a push rod 54 connected to the base 52. A spring 56 may be provided on the side of the base 52 opposite to the push rod 54, and the spring 56 is connected to the moving contact element 20. When the coil is energized, the push rod 54 is driven to move along the height direction, which in turn pushes the moving contact element 20 to move along the height direction via the spring 56. When the moving contact element 20 contacts the stationary contact element 10, the moving contact element 20 no longer moves along the height direction. At this time, the spring 56 can buffer the driving action of the push rod 54 and maintain the contact between the moving contact element 20 and the stationary contact element 10.

[0061] When the moving contact element 20 contacts the stationary contact element 10, the circuit is turned on, and current flows through both elements. At this time, a repulsive force may be generated between the moving contact element 20 and the stationary contact element 10, tending to separate them and disengage. This repulsive force may exceed the pushing force of the actuating assembly 50 on the moving contact element 20, ultimately causing the moving contact element 20 to separate from the stationary contact element 10. In this case, to ensure contact between the actuating contact element 20 and the stationary contact element 10, a magnetically conductive member can be provided to prevent separation. Specifically, the relay 1 can be provided with a first magnetically conductive member 30 and a second magnetically conductive member 40. The first magnetically conductive member 30 can be connected to, for example, the housing 11 or the stationary contact element 10, and the second magnetically conductive member 40 can be connected to the moving contact element 20. When the moving contact element 20 contacts the stationary contact element 10, a magnetic circuit is formed between the first magnetic conductive member 30 and the second magnetic conductive member 40, thereby generating an attractive force between the first magnetic conductive member 30 and the second magnetic conductive member 40, which in turn strengthens and maintains the contact between the moving contact element 20 and the stationary contact element 10.

[0062] The relay according to this application can be used as an electrical control device and is widely applied in various fields such as power, industry, communications, and home appliances. For example, relays can be used in power systems such as substations and transmission lines; industrial automation such as motor control and production lines; communications such as switching equipment and communication power supplies; home appliances such as air conditioners and refrigerators; automotive electronics such as starting circuits and lighting control; and smart homes such as smart switches and security systems.

[0063] The following will be referenced Figures 1 to 6 This application describes in detail a relay 1 according to some embodiments, which provides an improved mounting structure for a magnetically conductive component.

[0064] According to some embodiments of this application, a relay 1 is provided, which may include: a housing 11 forming a contact chamber 12; and a first magnetic conductive member 30, which may be disposed in the contact chamber 12 and may be mounted to the housing 11 by a fastener 60; wherein the housing 11 may have a mounting hole 13, and the fastener 60 passes through the mounting hole 13 to mount the first magnetic conductive member 30 to the housing 11.

[0065] As described above, the housing 11 forms a contact chamber 12. During the operation of the relay 1, the stationary contact assembly 10 and the moving contact assembly 20 contact within the contact chamber 12 to conduct the circuit. To ensure contact between the actuating contact element 20 and the stationary contact element 10, a magnetically conductive member can be provided to prevent the moving contact element 20 from separating from the stationary contact element 10. Specifically, the relay 1 can be provided with a first magnetically conductive member 30 and a second magnetically conductive member 40. The first magnetically conductive member 30 can be connected to the housing 11, and the second magnetically conductive member 40 can be connected to the moving contact element 20.

[0066] In this field, adhesives are typically used to bond the first magnetically conductive component 30 to the housing 11. However, using adhesives presents several problems. For example, the adhesive may not be strong enough, and the first magnetically conductive component 30 may detach from the housing 11 if the first magnetically conductive component 30 and the second magnetically conductive component 40 attract each other. The bonding process is also time-consuming; the bonding itself takes time, and the adhesive also needs time to cure. Currently, the time from bonding to complete curing can be up to two hours. Furthermore, adhesives are susceptible to aging; over time, the risk of the first magnetically conductive component 30 detaching from the housing 11 increases.

[0067] According to an embodiment of this application, the first magnetic conductive component 30 is mounted to the housing 11 by fasteners 60, that is, the first magnetic conductive component 30 is mechanically mounted to the housing 11, avoiding the problems caused by using adhesives.

[0068] like Figure 3 and Figure 4 As shown, Figure 3 A cross-sectional perspective view of a portion of a relay 1 according to some embodiments of this application is shown. Figure 4 A perspective view of a portion of a relay 1 according to some embodiments of this application is shown. A mounting hole 13 is formed on the top of the housing 11 along its height direction. This mounting hole 13 is a through hole through which a fastener 60 can protrude. The mounting hole 13 can be, for example, a threaded hole or any other type of hole suitable for fixed mounting. The fastener 60 can be, for example, a bolt, screw, rivet, pin, etc. The fastener 60 passes through the mounting hole 13 to mount the first magnetic member 30 to the housing 11. The mounting method can be, for example, threaded connection, riveting, welding, interference fit, etc. The fastener 60 can be mounted to the housing 11 by passing the first magnetic member 30 through it, or the first magnetic member 30 can be mounted to the housing 11 by clamping the end of the fastener 60 between it and the housing 11.

[0069] By using fasteners 60 to mount the first magnetically conductive component 30 onto the housing 11, the use of adhesives is avoided, thus avoiding a series of problems associated with adhesives. This mechanical mounting method ensures that the first magnetically conductive component 30 is securely mounted onto the housing 11 with virtually no risk of detachment.

[0070] According to some embodiments of this application, the relay 1 may further include a cap 70 that covers the mounting hole 13 and the fastener 60, thereby sealing the contact chamber 12 and preventing the contact chamber 12 from communicating with the external environment through the mounting hole 13. The cap 70 may be, for example, in the form of a bottle cap, and its cross-sectional dimensions may be determined based on the dimensions of the mounting hole 13, for example, it may be slightly larger than the diameter of the mounting hole 13 so as to completely cover the mounting hole 13. A receiving space may also be formed between the cap 70 and the housing 11 to accommodate the end of the fastener 60 that may extend outward from the mounting hole 13, such as... Figure 3 and Figure 4 As shown.

[0071] The number of mounting holes 13 can be matched with the number of fasteners 60. In the illustrated embodiment, two mounting holes 13 and two fasteners 60 are shown. However, those skilled in the art will understand that the number of mounting holes 13 and fasteners 60 is not limited to this and can be less than two or more than two, which can be designed and selected according to the needs of the actual application.

[0072] The arrangement of the mounting holes 13 and fasteners 60 can also be designed and selected according to the needs of the actual application. In the illustrated embodiment, the two mounting holes 13 and the two fasteners 60 are arranged symmetrically about the center of the relay 1 along the width direction. Those skilled in the art will understand that any other suitable arrangement is possible.

[0073] By using a cap 70 for sealing, the contact chamber 12 is isolated from the external environment, thus avoiding leakage problems that may be caused by the mounting hole 13.

[0074] According to some embodiments of this application, the cap 70 can be welded to the housing 11 around the mounting hole 13.

[0075] The cap 70 can be installed onto the housing 11 in various ways, such as by threaded connection or adhesive bonding. In some embodiments, the cap 70 is installed onto the housing 11 by welding, such as brazing. The cap 70 can be welded around the mounting hole 13 on the outside of the mounting hole 13 to completely surround the mounting hole 13.

[0076] The welding method can firmly fix the cap 70 to the housing 11, and the welding itself can form a seal, so that the connection between the cap 70 and the housing 11 is sealed, which enhances the sealing effect of the relay 1.

[0077] According to some embodiments of this application, a reinforcement 72 may be formed along the housing 11 between the cap 70 and the mounting hole 13.

[0078] The reinforcement 72 can be a structure formed by solder buildup on the inside of the cap 70 when the cap 70 is welded to the housing 11, to enhance the connection strength. Alternatively, solder pads can be pre-laid around the mounting hole 13, and when the cap 70 is welded to the housing 11, the solder pads form the reinforcement 72 under the welding action to enhance the connection strength.

[0079] Forming a reinforcement 72 between the cap 70 and the mounting hole 13 can enhance the connection strength. The reinforcement 72 can be formed simultaneously when the cap 70 is welded to the housing 11, so there is no increase in operational complexity, time and cost.

[0080] According to some embodiments of this application, the reinforcement 72 may further extend into the mounting hole 13 to contact the fastener 60 passing through the mounting hole 13.

[0081] During the formation of the reinforcement 72, the high temperature of the welding can melt the solder or solder sheet and flow into the mounting hole 13 to contact the fastener 60. Thus, after assembly, the reinforcement 72 extends into the mounting hole 13 and surrounds and contacts the fastener 60 in the mounting hole 13.

[0082] The reinforcing part 72 extends into the mounting hole 13 and contacts the fastener 60, which can effectively seal the mounting hole 13 and the fastener 60, enhance the sealing effect of the relay 1, and at the same time improve the connection strength of the fastener 60 in the mounting hole 13, enhance the installation firmness of the fastener 60, and reduce the risk of the fastener loosening.

[0083] According to some embodiments of this application, the upper part of the mounting hole 13 may be formed with a flared portion 132 and / or the end of the fastener 60 may be formed with a tapered portion 642 to form a gap 134 between the mounting hole 13 and the fastener 60. The reinforcing portion 72 may further extend into the gap 134 to fill the gap 134 and contact the fastener 60. Alternatively, the gap 134 may be filled with a sealing material.

[0084] In some embodiments, the upper portion of the mounting hole 13 along the height direction may be radially expanded outward to form a flared portion 132, the size (e.g., diameter) of which is larger than the size of the rest of the mounting hole 13, such that a gap 134 may be formed between the flared portion 132 and the fastener 60 when the fastener 60 passes through the mounting hole 13.

[0085] In some embodiments, the end of the fastener 60 may taper radially inward to form a tapered portion 642 with a smaller size (e.g., outer diameter) than the rest of the fastener 60, such that a gap 134 may be formed between the mounting hole 13 and the tapered portion 642 when the fastener 60 passes through the mounting hole 13.

[0086] In some embodiments, a flared portion 132 may be formed at the upper part of the mounting hole 13, while a tapered portion 642 is formed at the end of the fastener 60, thereby forming a gap 134 between the flared portion 132 and the tapered portion 642.

[0087] When a gap 134 is formed between the mounting hole 13 and the fastener 60, sealing material can be filled into the gap 134 to seal the mounting hole 13 and the fastener 60 and thereby seal the contact chamber 12. Alternatively, when the cap 70 is welded to the housing 11, the high temperature of the welding can melt the reinforcement 72 and allow it to flow into the gap 134 to seal the mounting hole 13 and the fastener 60 and thereby seal the contact chamber 12.

[0088] The formation of a gap 134 between the mounting hole 13 and the fastener 60 facilitates the formation of a sealing structure. When the reinforcement 72 extends into the gap 134, the reinforcement 72, which strengthens the connection and seals within the gap 134, is simultaneously generated when the cap 70 is welded to the housing 11. The reinforcement 72 provides both strengthening and sealing functions.

[0089] According to some embodiments of this application, a boss 14 surrounding the mounting hole 13 may be formed on the housing 11, and the cap 70 may be fixed to the boss 14.

[0090] like Figure 3 and Figure 4 As shown, the boss 14 is provided around the mounting hole 13 and protrudes upward from the housing 11 along the height direction. The boss 14 can be integrally formed with the housing 11 during manufacturing to increase the thickness of the housing 11 around the mounting hole 13. The boss 14 can be arranged concentrically with the mounting hole 13 along the height direction, and the boss 14 can be slightly larger than the cap 70 so that the cap 70 can be completely disposed on the boss 14.

[0091] The boss 14 can increase the thickness of the housing 11 and enhance the structural strength around the mounting hole 13. The boss 14 can serve as a reference and base for mounting the cap 70, that is, the cap 70 can be mounted on the boss 14, and at the same time, it can be easily aligned with the mounting hole 13 by using the boss 14 as a reference during installation.

[0092] According to some embodiments of this application, the mounting hole 13 may be a threaded hole, and the fastener 60 may be a threaded fastener and configured to be screwed into the mounting hole 13.

[0093] The mounting hole 13 may have an internal thread, and at least the portion of the fastener 60 inserted into the mounting hole 13 may have a matching external thread. The fastener 60 is screwed into the mounting hole 13 so that the internal thread of the mounting hole 13 engages with the external thread of the fastener 60, thereby forming a threaded connection between the fastener 60 and the mounting hole 13.

[0094] According to some embodiments of this application, the fastener 60 may include a head section 62, a tail section 64, and an intermediate section 66 located between the head section 62 and the tail section 64. The cross-section of the head section 62 may be larger than the cross-sections of the intermediate section 66 and the tail section 64, and the tail section 64 may extend into the mounting hole 13.

[0095] like Figure 3 and Figure 4 As shown, the fastener 60 generally includes three sections, which are, in order of height, a head section 62, a middle section 66, and a tail section 64. The tail section 64 can be inserted into the mounting hole 13 to engage with the mounting hole 13, and in the case of a threaded connection, the tail section 64 may have external threads formed on it.

[0096] The intermediate segment 66 is primarily associated with the first magnetically conductive member 30. For example, the intermediate segment 66 may pass through the first magnetically conductive member 30 along its height. The intermediate segment 66 may be fixedly engaged with the first magnetically conductive member 30, for example, by forming an external thread on the intermediate segment 66 and a through threaded hole in the first magnetically conductive member 30, such that the intermediate segment 66 is threadedly connected to the first magnetically conductive member 30. Alternatively, the intermediate segment 66 may not be fixedly engaged with the first magnetically conductive member 30. For example, the intermediate segment 66 may be a rod-shaped structure, with a through hole or groove formed in the first magnetically conductive member 30, through which the intermediate segment 66 extends.

[0097] The head segment 62 is also associated with the first magnetically conductive member 30, primarily for supporting and securing the first magnetically conductive member 30. According to some embodiments, the cross-section of the head segment 62 in the plane formed by its length and width directions may be larger than the cross-sections of the middle segment 66 and the tail segment 64, thus giving the head segment 62 a protruding portion relative to the middle segment 66 and the tail segment 64, thereby supporting the first magnetically conductive member 30. For example, the first magnetically conductive member 30 may abut against the head segment 62, thereby being sandwiched between the housing 11 and the head segment 62, and thus secured to the housing 11.

[0098] This three-section fastener structure is simple and inexpensive, yet provides excellent fastening, preventing the fastened structure from easily falling off.

[0099] According to some embodiments of this application, the first magnetically conductive member 30 may have a mounting portion 32, through which the fastener 60 can mount the first magnetically conductive member 30 to the housing 11. The mounting portion 32 typically extends through the first magnetically conductive member 30 in the height direction so that the fastener 60 can pass through the first magnetically conductive member 30 and extend into the mounting hole 13 on the housing 11.

[0100] According to some embodiments of this application, the mounting portion 32 may include a guide section 322 and an abutment section 324. The middle section 66 of the fastener 60 may extend along the guide section 322, and the head section 62 may abut against the abutment section 324 to clamp the first magnetically conductive member 30 between the head section 62 and the housing 11. According to some embodiments of this application, the mounting portion 32 may also include a recessed section 326, in which the head section 62 of the fastener 60 may be located.

[0101] Combination Figure 5 and Figure 6 As shown, Figure 5 and Figure 6 A perspective view of the first magnetically conductive member 30 is shown. A guide segment 322, extending along the height direction near the housing 11, guides the middle segment 66 of the fastener 60. During assembly, the tail segment 64 of the fastener 60 extends upward along the height direction of the guide segment 322 into the mounting hole 13, while the middle segment 66 of the fastener 60 is also positioned along the guide segment 322. An abutment segment 324, positioned below the guide segment 322, engages with the head segment 62 of the fastener 60. The head segment 62 of the fastener 60 abuts against the abutment segment 324 along the height direction, clamping the first magnetically conductive member 30 between the head segment 62 and the housing 11. With the tail segment 64 secured in the mounting hole 13, the head segment 62 can be configured to press or bias the first magnetically conductive member 30 toward the housing 11 to improve the mounting stability of the first magnetically conductive member 30.

[0102] The abutting section 324 can be the lower surface of the first magnetically conductive member 30 along the height direction, that is, the head section 62 of the fastener 60 can directly abut against the lower surface of the first magnetically conductive member 30. In this case, the head section 62 protrudes from the first magnetically conductive member 30 along the height direction.

[0103] In some embodiments, the mounting portion 32 may further have a recessed section 326, such that the abutting section 324 is positioned between the guide section 322 and the recessed section 326 along the height direction. Both the guide section 322 and the recessed section 326 may extend along the height direction. The cross-sectional dimension of the recessed section 326 may be larger than the cross-sectional dimension of the guide section 322, forming a stepped structure between the guide section 322 and the recessed section 326. The surface of this stepped structure forms the abutting section 324. The middle section 66 of the fastener 60 is arranged along the guide section 322, and the head section 62 is arranged in the recessed section 326, such that the head section 62 abuts against the abutting section 324 between the guide section 322 and the recessed section 326. In this case, the head section 62 may be flush with the lower surface of the first magnetic member 30 along both the length and width directions, or it may be recessed into the recessed section 326, below the lower surface of the first magnetic member 30.

[0104] This mating structure between the fastener 60 and the mounting part 32 facilitates the fastener 60 in mounting the first magnetically conductive member 30 onto the housing 11 without interfering with the function of the first magnetically conductive member 30.

[0105] According to some embodiments of this application, the mounting portion 32 may be in the form of a through hole penetrating the first magnetically conductive member 30, or it may be in the form of a groove extending inward from the edge of the first magnetically conductive member 30.

[0106] In some embodiments, the mounting portion 32 is a through hole arranged aligned with the mounting hole 13. The guide section 322 and the recessed section 326 of the mounting portion 32 together constitute the through hole. The diameter of the guide section 322 may be smaller than the diameter of the recessed section 326, so that an abutment section 324 is formed between the guide section 322 and the recessed section 326. The fastener 60 can be inserted through the mounting portion 32, which is a through hole, such that the tail section 64 is inserted into the mounting hole 13, the middle section 66 is in the guide section 322, and the head section 62 is arranged in the recessed section 326 and abuts against the abutment section 324. Thus, when the tail section 64 is fixed to the mounting hole 13 by means of, for example, threaded connection, riveting, welding, etc., the fastener 60 mounts the first magnetic member 30 onto the housing 11.

[0107] In some embodiments, such as Figures 3 to 6As shown, the mounting portion 32 is in the form of a groove extending inward from the edge of the first magnetically conductive member 30. When machining the mounting portion 32 on the first magnetically conductive member 30, the cutting tool can directly machine inward from the edge of the first magnetically conductive member 30 to form the groove, reducing the complexity of machining. The guide section 322 and the recessed section 326 of the mounting portion 32 together constitute the groove. The cross-sectional dimension of the guide section 322 can be smaller than the cross-sectional dimension of the recessed section 326 to form an abutment section 324 between the guide section 322 and the recessed section 326. During assembly, the fastener 60 can be guided along the groove so that its tail section 64 is aligned with the mounting hole 13, thereby making it easier for the fastener 60 to be inserted into the mounting hole 13. After the tail section 64 of the fastener 60 is fixed into the mounting hole 13 by means of, for example, threaded connection, riveting, welding, etc., the head section 62 is arranged in the recessed section 326 and abuts against the abutting section 324 to install the first magnetic conductive member 30 onto the housing 11.

[0108] The through-hole type mounting part is easy to process and assemble; the groove type mounting part is easy to process and assemble, and the alignment of fasteners with the mounting holes is easier.

[0109] According to some embodiments of this application, an elastic element may be provided between the head section 62 and the first magnetic conductive member 30 to bias the first magnetic conductive member 30 toward the housing 11.

[0110] In an embodiment not shown, an elastic element may be provided between the head section 62 and the first magnetically conductive member 30. For example, an elastic element, such as a helical spring arranged around the fastener 60, may be provided between the abutting section 324 of the mounting portion 32 of the first magnetically conductive member 30 and the head section 62. In this case, the head section 62 indirectly abuts against the abutting section 324 through the elastic element, and the elastic force of the elastic element biases the first magnetically conductive member 30 toward the housing 11 along the height direction. When a magnetic circuit is formed between the first magnetically conductive member 30 and the second magnetically conductive member 40 and they attract each other, the first magnetically conductive member 30 can overcome the elastic force of the elastic element and move toward the second magnetically conductive member 40 to adjust the distance between the first magnetically conductive member 30 and the second magnetically conductive member 40, thereby adjusting the attraction between them.

[0111] According to the relay of this application, by using fasteners to mechanically connect the first magnetic component to the housing, a series of problems caused by using adhesives can be avoided. At the same time, the cap can provide a good sealing effect. The reinforcement can be formed and function at the same time as the cap is welded to the housing, further enhancing the structural strength and sealing performance.

[0112] While exemplary embodiments of this application have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this application without departing from the spirit and scope thereof. Therefore, all changes and modifications are included within the scope of protection of this application as defined by the claims. This application is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A relay (1), characterized in that, The relay (1) includes: Housing (11), the housing (11) forming a contact chamber (12); and A first magnetic conductive component (30) is disposed in the contact chamber (12) and mounted to the housing (11) by fasteners (60); The housing (11) has a mounting hole (13) formed thereon, and the fastener (60) passes through the mounting hole (13) to mount the first magnetic conductive member (30) onto the housing (11).

2. The relay (1) according to claim 1, characterized in that, The relay (1) also includes a cap (70) that covers the mounting hole (13) and the fastener (60) to seal the contact chamber (12).

3. The relay (1) according to claim 2, characterized in that, The cap (70) is welded to the housing (11) around the mounting hole (13).

4. The relay (1) according to claim 3, characterized in that, A reinforcement (72) is formed along the housing (11) between the cap (70) and the mounting hole (13).

5. The relay (1) according to claim 4, characterized in that, The reinforcement (72) extends further into the mounting hole (13) to contact the fastener (60) passing through the mounting hole (13).

6. The relay (1) according to claim 4, characterized in that, The upper part of the mounting hole (13) is formed with a flared portion (132) and / or the end of the fastener (60) is formed with a tapered portion (642) to form a gap (134) between the mounting hole (13) and the fastener (60), and the reinforcing portion (72) extends further into the gap (134) to fill the gap (134) and contact the fastener (60).

7. The relay (1) according to claim 1, characterized in that, The upper part of the mounting hole (13) is formed with a flared portion (132) and / or the end of the fastener (60) is formed with a tapered portion (642) to form a gap (134) between the mounting hole (13) and the fastener (60), and the gap (134) is filled with sealing material.

8. The relay (1) according to claim 2, characterized in that, The housing (11) has a boss (14) formed around the mounting hole (13), and the cap (70) is fixed to the boss (14).

9. The relay (1) according to claim 1, characterized in that, The mounting hole (13) is a threaded hole, and the fastener (60) is a threaded fastener and is configured to be screwed into the mounting hole (13).

10. The relay (1) according to any one of claims 1 to 9, characterized in that, The fastener (60) includes a head section (62), a tail section (64), and an intermediate section (66) located between the head section (62) and the tail section (64). The cross-section of the head section (62) is larger than the cross-sections of the intermediate section (66) and the tail section (64). The tail section (64) extends into the mounting hole (13).

11. The relay (1) according to claim 10, characterized in that, The first magnetic conductive member (30) has a mounting portion (32), and the fastener (60) mounts the first magnetic conductive member (30) onto the housing (11) through the mounting portion (32) and the mounting hole (13).

12. The relay (1) according to claim 11, characterized in that, The mounting portion (32) includes a guide section (322) and an abutment section (324), the middle section (66) of the fastener (60) extends along the guide section (322), and the head section (62) abuts against the abutment section (324) to clamp the first magnetic conductive member (30) between the head section (62) and the housing (11).

13. The relay (1) according to claim 12, characterized in that, The mounting portion (32) further includes a recessed section (326), in which the head section (62) of the fastener (60) is located.

14. The relay (1) according to claim 12, characterized in that, The mounting portion (32) is in the form of a through hole penetrating the first magnetic conductive member (30), or in the form of a groove extending inward from the edge of the first magnetic conductive member (30).

15. The relay (1) according to claim 10, characterized in that, An elastic element is provided between the head section (62) and the first magnetic conductive member (30) to bias the first magnetic conductive member (30) toward the housing (11).

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