A high load relay

Abstract

The application relates to the technical field of relays, in particular to a high-load relay which comprises a shell assembly and an electromagnetic assembly; the shell assembly comprises a shell and a cover; the shell is provided with a containing cavity; the bottom wall of the containing cavity is provided with a gap rib; the cover is arranged at the cavity opening of the containing cavity and seals the cavity opening; the electromagnetic assembly is arranged in the containing cavity; the electromagnetic assembly is arranged between the gap rib and the cover; the top of the electromagnetic assembly and the bottom wall of the containing cavity form a heat dissipation cavity through the gap rib; the volume and the surface area in the containing cavity are increased by arranging the gap rib, the heat dissipation capacity is improved, the load is improved, and the advantage of better heat dissipation performance is realized.

Description

Technical Field

[0001] This application relates to the field of relay technology, and more specifically to a high-load relay. Background Technology

[0002] A relay is an electrical control device widely used in automated control circuits. It is an "automatic switch" that uses a small current to control a large current operation.

[0003] There is a type of relay, such as Figure 1 As shown, the relay includes a housing assembly 90 and an electromagnetic assembly 91. The housing assembly 90 includes a shell and a cover. The shell has a receiving cavity 901. The electromagnetic assembly 91 is placed inside the receiving cavity 901. The cover covers the opening of the receiving cavity 901. It is evident that the space between the top of the electromagnetic assembly 91 and the bottom wall of the receiving cavity 901 is small. When a high number of turns coil is installed, the heat generation is relatively large. Furthermore, due to the small gap between the receiving cavity 901 and the electromagnetic assembly 91, the heat dissipation space is limited, which restricts the overall load of the relay.

[0004] Therefore, there is a need for a high-load relay with better heat dissipation performance. Summary of the Invention

[0005] The main objective of this application is to provide a high-load relay, wherein the high-load relay includes a housing assembly and an electromagnetic assembly. The housing assembly includes a shell and a cover. The shell has a receiving cavity, and the bottom wall of the receiving cavity has hollow ribs. The cover is disposed at the opening of the receiving cavity and closes the opening of the receiving cavity. The electromagnetic assembly is placed inside the receiving cavity, between the hollow ribs and the cover. The top of the electromagnetic assembly and the bottom wall of the receiving cavity form a heat dissipation cavity through the hollow ribs. By setting the hollow ribs, the volume and surface area inside the receiving cavity are increased, thereby improving the heat dissipation capacity and providing conditions for increasing the load. Compared with the prior art, it has the advantage of better heat dissipation performance.

[0006] Another objective of this application is to provide a high-load relay, wherein the high-load relay further includes a movable spring, one end of which is fixedly mounted on the cover, and the other end of which has a stacked thickened portion, thereby providing local thermal and electrical conductivity by providing the thickened portion at one end of the movable spring.

[0007] To achieve at least one of the above-mentioned objectives, this application provides a high-load relay, wherein the high-load relay comprises:

[0008] A housing assembly, the housing assembly including an outer shell and a cover, the outer shell having a receiving cavity, the bottom wall of the receiving cavity having a hollow rib, and the cover being disposed at the opening of the receiving cavity and closing the opening of the receiving cavity;

[0009] An electromagnetic component is placed inside the accommodating cavity, between the gap rib and the cover, and the top of the electromagnetic component and the bottom wall of the accommodating cavity form a heat dissipation cavity through the gap rib.

[0010] In one or more embodiments of this application, the high-load relay further includes a movable spring, one end of which is fixedly mounted on the cover, and the other end of which has a thickened portion arranged in layers.

[0011] In one or more embodiments of this application, the high-load relay further includes an electromagnetic component, which includes a coil assembly, a yoke, an armature, a slider, and a stationary spring. One end of the yoke is disposed on one side of the coil assembly, and the middle section of the armature is rotatably mounted on the other end of the yoke. One end of the armature is opposite to the end of the coil assembly away from the yoke, and the other end of the armature abuts against the slider. The slider is slidably disposed between the gap rib and the cover. The end of the slider away from the armature is connected to the moving spring. The stationary spring is disposed on the side of the moving spring away from the slider and spaced at a predetermined distance, and the stationary spring is mounted on the cover.

[0012] In one or more embodiments of this application, the high-load relay further includes a reset spring, one end of which is connected to the armature, and the other end of which is fixedly mounted on the cover.

[0013] In one or more embodiments of this application, the movable spring has two discharge grooves at one end near the cover.

[0014] In one or more embodiments of this application, one end of the cover has two spaced mounting grooves, and the bottom wall of each of the two mounting grooves has a through hole. One end of the moving spring and the stationary spring has a pin, and the pin-pinned ends of the moving spring and the stationary spring are inserted into the mounting grooves, with the pins passing through the corresponding through holes.

[0015] In one or more embodiments of this application, the end of the cover having the mounting groove also has a first extension end, the first extension end being located between the two mounting grooves.

[0016] In one or more embodiments of this application, the middle section of the cover has a raised section, the raised section has a groove, a partition is vertically arranged in the middle section of the groove, one end of the yoke away from the coil assembly is inserted between the partition and one side wall of the groove, and the slider has a second extension end located between the partition and the other side wall of the groove.

[0017] In one or more embodiments of this application, the coil assembly includes a coil frame, an iron core, and a coil group. The coil frame has a winding portion and a central hole, the iron core passes through the central hole, and the coil group is wound on the winding portion.

[0018] In this embodiment, the high-load relay includes a housing assembly and an electromagnetic assembly. The housing assembly includes a shell and a cover. The shell has a receiving cavity, and the bottom wall of the receiving cavity has a hollow rib. The cover is located at the opening of the receiving cavity and closes the opening of the receiving cavity. The electromagnetic assembly is placed inside the receiving cavity, between the hollow rib and the cover. The top of the electromagnetic assembly and the bottom wall of the receiving cavity form a heat dissipation cavity through the hollow rib. By setting the hollow rib, the volume and surface area inside the receiving cavity are increased, thereby improving the heat dissipation capacity and providing conditions for increasing the load. Compared with the prior art, it has the advantage of better heat dissipation performance. Attached Figure Description

[0019] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 The illustration shows a cross-sectional view of an existing relay;

[0021] Figure 2 The diagram illustrates the structure of the casing of this application;

[0022] Figure 3 The figure shows a schematic diagram of the structure of a high-load relay according to this application;

[0023] Figure 4 The figure shows a schematic diagram of the structure of a high-load relay of this application when the housing is removed;

[0024] Figure 5 The diagram illustrates the structure of the movable spring.

[0025] Figure 6 The diagram illustrates the structure of the cap at a certain angle.

[0026] Figure 7 The diagram illustrates the structure of the reset spring.

[0027] Figure 8 The diagram shows a schematic representation of the structure at the yoke.

[0028] Figure 9 The diagram illustrates the structure of the sliding component;

[0029] Figure 10 The diagram shows a structural schematic of the cap from another angle. Detailed Implementation

[0030] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0031] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0032] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0034] Indicative high-load relay, see reference. Figures 2 to 10 A high-load relay according to a preferred embodiment of the present invention includes a housing assembly 10 and an electromagnetic assembly 20.

[0035] Specifically, such as Figure 3As shown, the housing assembly 10 includes an outer shell 101 and a cover 102. The outer shell 101 has a receiving cavity 1011, and the bottom wall of the receiving cavity 1011 has a hollow rib 1012. The cover 102 is disposed at the opening of the receiving cavity 1011 and closes the opening of the receiving cavity 1011. The electromagnetic component 20 is placed inside the receiving cavity 1011, and the electromagnetic component 20 is placed between the hollow rib 1012 and the cover 102. The top of the electromagnetic component 20 and the bottom wall of the receiving cavity 1011 form a heat dissipation cavity through the hollow rib 1012.

[0036] More specifically, in the embodiments of this application, such as Figure 2 As shown, the gap rib 1012 includes a cross rib 10121 and a vertical rib 10122. Both the cross rib 10121 and the vertical rib 10122 are obtained by extending upwards a predetermined distance from the bottom wall of the accommodating cavity 1011. It should be noted that by creating a large gap between the electromagnetic component 20 and the bottom wall of the accommodating cavity 1011 and by providing the gap rib 1012, the heat dissipation area of ​​the outer shell 101 is larger, improving the overall heat dissipation capacity of the high-load relay. This allows for the placement of coils with a higher number of turns, resulting in a high-load relay. Compared with the prior art, this has the advantage of better heat dissipation performance.

[0037] Furthermore, such as Figure 4 and Figure 5 As shown, the high-load relay also includes a moving spring 301 and a stationary spring 302. One end of the moving spring 301 is fixedly mounted on the cover 102, and the other end of the moving spring 301 has a thickened portion 3011 arranged in layers. The stationary spring 302 is disposed on the side of the moving spring 301 away from the sliding member and spaced at a predetermined distance, and the stationary spring 302 is mounted on the cover 102.

[0038] It should be noted that the movable spring 301 is provided with a movable contact, and the stationary spring 302 is provided with a stationary contact. The thickened portion 3011 is located in the area of ​​the movable spring 301 where the movable contact is located. When the movable contact separates from the stationary contact, an electric arc is generated and heat is produced. By providing the thickened portion 3011 on the movable spring 301, the thermal conductivity and electrical conductivity of the end of the movable spring 301 where the movable contact is located are improved. Furthermore, in this application, the thickened portion 3011 is formed by folding one end of the movable spring 301 in half.

[0039] Furthermore, such as Figure 4 As shown, the high-load relay also includes an electromagnetic component 20, which includes a coil assembly 201, a yoke 202, an armature 203, and a slider 204. Specifically, as shown... Figure 3As shown, the coil assembly 201 includes a coil frame 2011, an iron core 2012, and a coil group 2013. The coil frame 2011 has a winding portion 20111 and a central hole 20112. The iron core 2012 passes through the central hole 20112, and the coil group 2013 is wound on the winding portion 20111. In addition, one end of the yoke 202 is located on one side of the coil assembly 201, and the middle section of the armature 203 is rotatably mounted on the other end of the yoke 202. One end of the armature 203 is opposite to the end of the coil assembly 201 that is away from the yoke 202, and the other end of the armature 203 abuts against the sliding member 204. The sliding member 204 is slidably disposed between the gap rib 1012 and the cover 102, and the end of the sliding member 204 that is away from the armature 203 is connected to the moving spring 301.

[0040] It should be noted that both the yoke 202 and the armature 203 are L-shaped. When the coil assembly 201 is working, the armature 203 flips towards the coil assembly 201 under the action of magnetic force. Then, the other end of the yoke 202 is raised and pushes the slider 204 to slide away from the coil assembly 201. This pushes the end of the moving spring 301 with the moving contact to move towards the stationary spring 302 until the moving contact contacts the stationary contact.

[0041] Furthermore, to ensure that the armature 203 resets when the coil assembly 201 is de-energized, as follows: Figure 3 and Figure 4 As shown, the high-load relay also includes a reset spring 205, one end of which is connected to the armature 203, and the other end of which is fixedly mounted on the cover 102.

[0042] Specifically, the middle section of the cover 102 has a raised section 1021, the raised section 1021 has a groove 1022, and the two side walls of the groove 1022 have a first rectangular notch 1023 and a second rectangular notch 1024. Both ends of the reset spring 205 are bent at 90° and then vertically inserted into the first rectangular notch 1023. Additionally, as... Figure 7 As shown, the middle section of the reset spring 205 has a bent section 2051, which is bent at a predetermined angle towards the coil assembly 201. The bent section 2051 is fixedly connected to the armature 203, and the fixed connection method includes, but is not limited to, welding. Additionally, as... Figure 8 As shown, the two sides of one end of the yoke 202 are inserted into the second rectangular notch 1024.

[0043] Furthermore, to facilitate the bending and deformation of the movable spring 301, such as... Figure 5 As shown, the movable spring 301 has two discharge grooves 3012 at one end near the cover 102. It should also be noted that the movable spring 301 also has a lead 3013, which is located at the end of the discharge groove 3012 opposite to the thickened portion 3011. Additionally, as... Figure 5 and Figure 9 As shown, the movable spring 301 also has two guide grooves 3014. The end of the sliding member 204 facing away from the coil assembly 201 has a notch 2041, and the notch 2041 has two protrusions 2042, which extend into the two guide grooves 3014 respectively. In addition, the other end of the sliding member 204 has a socket 2043, and one end of the armature 203 extends into the socket 2043.

[0044] Furthermore, to facilitate fixing one end of the stationary spring 302 and the movable spring 301, such as... Figure 10 As shown, one end of the cover 102 has two spaced mounting grooves 1025, and the bottom wall of each of the two mounting grooves 1025 has a through hole 1026. One end of the stationary spring 302 also has a lead 3013, and the ends of the moving spring 301 and the stationary spring 302 with the lead 3013 are inserted into the mounting groove 1025, and the lead 3013 passes through the corresponding through hole 1026.

[0045] Furthermore, since both the stationary spring 302 and the moving spring 301 are made of conductive materials and are spaced a predetermined distance apart, to prevent metal debris from falling and connecting the stationary spring 302 and the moving spring 301 after long-term use, such as... Figure 10 As shown, the end of the cover 102 with the mounting groove 1025 also has a first extension end 1027, which is located between the two mounting grooves 1025.

[0046] It should be noted that by setting the first extension end 1027, the creepage distance between the stationary spring 302 and the moving spring 301 is increased, effectively reducing the risk of the stationary spring 302 and the moving spring 301 becoming electrically connected due to metal debris.

[0047] Furthermore, to provide support and guidance for the slider 204, such as Figure 6 As shown, a partition plate 1028 is vertically arranged in the middle section of the groove 1022, and the end of the yoke 202 facing away from the coil assembly 201 is inserted between the partition plate 1028 and one side wall of the groove 1022, as shown. Figure 9 As shown, the slider 204 has a second extension end 2044, which is located between the partition 1028 and the other side wall of the groove 1022.

[0048] In summary, the high-load relay described in the embodiments of this application is explained, which provides advantages such as better heat dissipation performance for the high-load relay.

[0049] It is worth mentioning that, in this embodiment, the high-load relay has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the high-load relay provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0050] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A high-load relay, characterized in that: The high-load relay includes A housing assembly, the housing assembly including an outer shell and a cover, the outer shell having a receiving cavity, the bottom wall of the receiving cavity having a hollow rib, and the cover being disposed at the opening of the receiving cavity and closing the opening of the receiving cavity; An electromagnetic component is placed inside the accommodating cavity, between the gap rib and the cover, and the top of the electromagnetic component and the bottom wall of the accommodating cavity form a heat dissipation cavity through the gap rib.

2. The high-load relay according to claim 1, characterized in that: The high-load relay also includes a movable spring, one end of which is fixedly mounted on the cover, and the other end of which has a thickened portion arranged in layers.

3. The high-load relay according to claim 2, characterized in that: The high-load relay further includes an electromagnetic component, which includes a coil assembly, a yoke, an armature, a slider, and a stationary spring. One end of the yoke is located on one side of the coil assembly, and the middle section of the armature is rotatably mounted on the other end of the yoke. One end of the armature is directly opposite the end of the coil assembly away from the yoke, and the other end of the armature abuts against the slider. The slider is slidably disposed between the gap rib and the cover. The end of the slider away from the armature is connected to the moving spring. The stationary spring is located on the side of the moving spring away from the slider and spaced at a predetermined distance, and the stationary spring is mounted on the cover.

4. The high-load relay according to claim 3, characterized in that: The high-load relay also includes a reset spring, one end of which is connected to the armature, and the other end of which is fixedly mounted on the cover.

5. The high-load relay according to claim 4, characterized in that: The movable spring has two discharge grooves at the end near the cover.

6. The high-load relay according to claim 3, characterized in that: One end of the cover has two spaced mounting grooves, and the bottom wall of each mounting groove has a through hole. One end of the moving spring and the stationary spring has a lead, and the lead end of the moving spring and the stationary spring is inserted into the mounting groove, and the lead passes through the corresponding through hole.

7. The high-load relay according to claim 6, characterized in that: The end of the cover with the mounting groove also has a first extension end, which is located between the two mounting grooves.

8. The high-load relay according to claim 7, characterized in that: The middle section of the cover has a raised section, the raised section has a groove, the middle section of the groove has a partition arranged vertically, the end of the yoke away from the coil assembly is inserted between the partition and one side wall of the groove, and the sliding member has a second extension end, the second extension end is located between the partition and the other side wall of the groove.

9. The high-load relay according to claim 3, characterized in that: The coil assembly includes a coil frame, an iron core, and a coil group. The coil frame has a winding section and a central hole. The iron core passes through the central hole, and the coil group is wound on the winding section.

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