Relay and preparation method thereof

Abstract

The invention relates to a relay and a preparation method thereof. The relay comprises a first shell, the first shell comprises a bottom plate and a plurality of first side plates, the plurality of first side plates are connected to the bottom plate along the periphery of the bottom plate, and an accommodating space is formed between the plurality of first side plates and the bottom plate; the first shell is further provided with an opening which is located in the side, opposite to the bottom plate, of the containing space and communicated with the containing space, and at least one first side plate is further provided with an opening communicated with the opening. And the second shell is arranged at the opening and is fixedly connected with the first shell. According to the relay, the second shell is arranged on the first shell, so that the influence of deformation of the first shell in the preparation process on the assembly precision and internal components of the relay can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of relays, and in particular to a relay and a method for preparing the same. Background Art

[0002] Conventional relays are usually provided with a base for mounting an electromagnetic mechanism, an armature, a moving spring and a stationary spring. The moving spring and the stationary spring extend out of the base for electrical connection with an external circuit. In a normally open relay, when the coil in the electromagnetic mechanism is energized, the electromagnetic attraction can drive the armature to move so as to drive the contacts of the moving spring and the stationary spring to contact each other, thereby achieving conduction of the external circuit. The base is usually provided with a notch for the moving spring and the stationary spring or other components to extend out of the base. However, during the preparation process of the base, the base is prone to deformation, which affects the assembly accuracy of the moving spring and the stationary spring relative to the base, thereby affecting the coordination of the moving spring and the stationary spring with the external circuit. Summary of the invention

[0003] Based on this, it is necessary to provide a relay and a method for preparing the relay in order to solve the problem that the base is easily deformed during the preparation process of the base.

[0004] A relay, comprising:

[0005] A first shell, comprising a bottom plate and a plurality of first side plates, wherein the plurality of first side plates are connected to the bottom plate along a periphery of the bottom plate, an accommodation space is formed between the plurality of first side plates and the bottom plate, the first shell further comprises an opening located on a side of the accommodation space facing away from the bottom plate and connected to the accommodation space, wherein at least one of the first side plates further comprises an opening connected to the opening; and,

[0006] The second shell is disposed at the opening and is fixedly connected to the first shell.

[0007] For the above relay, when the first shell is deformed during the preparation process and the size of the opening changes relative to the design size, if the opening size becomes smaller, the second shell can open the opening at the opening to avoid the opening accuracy deviation affecting the assembly accuracy of the internal components on the first shell. At the same time, the reduction in the opening size can also increase the clamping force of the first shell on the second shell at the opening, and improve the stability of the connection between the first shell and the second shell. If the opening size becomes larger, the setting of the second shell can reduce the gap between the second shell and the first shell, and prevent the glue from leaking into the first shell through the opening gap during the dispensing process, affecting the performance of the components in the first shell. Therefore, setting the second shell on the first shell can reduce the impact of the deformation of the first shell during the preparation process on the assembly accuracy and internal components of the relay.

[0008] In one embodiment, the relay further includes a reed, wherein the reed is partially accommodated in the accommodating space and passes through the second housing.

[0009] In one embodiment, the thermal deformation temperature of the second shell is higher than the thermal deformation temperature of the first shell; and / or,

[0010] The melting point of the second shell is higher than the melting point of the first shell.

[0011] In one embodiment, the reed includes a moving reed and a stationary reed, the second shell is provided with two slots penetrating the second shell, the second shell isolates the two slots from the first shell, and the moving reed and the stationary reed are respectively provided with the two slots.

[0012] In one embodiment, the second shell includes two sub-base bodies and a connecting portion connected between the two sub-base bodies, the two slots are respectively provided in the two sub-base bodies, and the two sub-base bodies and the connecting portion are an integrated structure.

[0013] In one embodiment, the connecting portion is protruding from a side of the sub-base body facing away from the accommodating space; and / or,

[0014] The distance between at least parts of two opposite inner wall surfaces of the sub-base body gradually decreases in the direction from the connecting portion to the accommodating space.

[0015] In one embodiment, the opening includes two spaced-apart sub-notches, the second shell includes two sub-base parts, the two sub-base parts are respectively arranged in the two sub-notches and are respectively fixedly connected to the first shell, and the two slots are respectively arranged in the two sub-base parts.

[0016] In one of the embodiments, the first shell includes a connecting structure located between the two sub-notches, and the connecting structure is protruded on a side of the two sub-base portions facing away from the accommodating space.

[0017] In one embodiment, one of the reed and the second housing is provided with a first matching structure, and the other is provided with a second matching structure, and one of the first matching structure and the second matching structure is embedded in the other.

[0018] In one embodiment, the first shell has an inner wall surface surrounding the opening, and the outer peripheral surface of the second shell at least partially abuts against the inner wall surface.

[0019] In one embodiment, the relay further includes a first adhesion structure, wherein the first adhesion structure adheres the reed and the second housing.

[0020] In one embodiment, the relay further includes a shell and a second bonding structure, the shell is provided with an installation space and a loading port connected to the installation space, at least a portion of the first shell is accommodated in the installation space, the shell closes the opening, the second shell is located at the loading port, and the second bonding structure bonds the first shell and the shell at the loading port.

[0021] In one of the embodiments, the opening is provided at a position where one of the first side panels is adjacent to another adjacent first side panel.

[0022] In one embodiment, the volume of the second shell is less than 8% of the volume of the first shell.

[0023] A method for preparing a relay, comprising:

[0024] A spring sheet, a first shell and a second shell are provided, wherein the first shell is provided with a containing space and an opening penetrating through the first shell and communicating with the containing space, and the second shell is provided with a slot;

[0025] Installing the reed into the accommodating space so that a portion of the reed extends out of the first housing through the opening, and a portion of the reed corresponding to the opening is spaced apart from the first housing;

[0026] Install the second housing to the opening so that the reed passes through the second housing from the slot, and the second housing isolates the reed from the second housing;

[0027] The reed and the second housing are fixed.

[0028] A method for preparing a relay, comprising:

[0029] A spring, a first shell and a second shell are provided, wherein the first shell is provided with a receiving space and an opening penetrating the first shell, and the second shell is provided with a slot;

[0030] Installing the second housing onto the reed so that the reed passes through the second housing from the slot;

[0031] Installing part of the reed into the accommodating space so that the second housing is installed at the opening and the reed extends out of the first housing through the second housing;

[0032] The reed, the first housing and the second housing are relatively fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1Schematic diagram of the structure of relays in some embodiments.

[0034] Figure 2 for Figure 1 An exploded schematic diagram of a relay is shown.

[0035] Figure 3 for Figure 1 The schematic diagram of the structure of the relay shown is omitted.

[0036] Figure 4 for Figure 3 The schematic diagram of the structure of the relay shown in another angle.

[0037] Figure 5 for Figure 3 An exploded schematic diagram of a relay is shown.

[0038] Figure 6 for Figure 3 The schematic diagram of the structure of the second housing in the relay shown.

[0039] Figure 7 It is a schematic diagram of the structure of the relay after the housing is omitted in some other embodiments.

[0040] Figure 8 for Figure 7 An exploded schematic diagram of a relay is shown.

[0041] Fig. 9 for Figure 7 The schematic diagram of the structure of the second housing in the relay shown.

[0042] Reference numerals:

[0043] 10. Relay; 11. First housing; 110. Accommodation space; 111. First accommodating space; 112. Second accommodating space; 113. Opening; 114. Open mouth; 115. Connecting structure; 116. Bottom plate; 117. First side plate; 118. Partition plate; 12. Moving spring; 13. Static spring; 131. First matching structure; 14. Second housing; 141. Sub-base body; 142. Connecting part; 143. Sub-base part; 144. Second matching structure; 145. Slot; 15. First adhesion structure; 16. Housing; 161. Top plate; 162. Second side plate; 163. Loading port. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0050] See also Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 and Figure 2 The structure diagram and explosion diagram of the relay 10 in some embodiments of the present application are shown respectively. Figure 3 The schematic diagram of the structure of the relay 10 in some embodiments of the present application is shown, in which the housing 16 is omitted. The relay 10 provided in the present application includes but is not limited to an electromagnetic relay, for example, a high voltage DC relay.

[0051] In some embodiments, the relay 10 includes a first housing 11, a movable spring 12, and a static spring 13. The first housing 11 is provided with a housing space 110. The housing space 110 may include a first housing space 111 and a second housing space 112 that are spaced apart from each other. The first housing 11 is also provided with an opening 113 that penetrates the first housing 11 and communicates with the second housing space 112. The movable spring 12 and the static spring 13 may be partially fixed on the first housing 11 and located in the second housing space 112, and partially extend out of the first housing 11 through the opening 113, so as to be electrically connected to an external circuit, for example, connected to an external circuit board by welding or the like. In some embodiments, the relay includes an electromagnetic mechanism (not shown in the figure) and an active structure (not shown in the figure), the electromagnetic mechanism includes but is not limited to an electromagnet composed of a coil and an iron core, the active structure includes but is not limited to an armature structure, the electromagnetic mechanism is fixed on the first housing 11 and is located in the first accommodating space 111, the active structure extends from the first accommodating space 111 to the second accommodating space 112 and is movably connected to the first housing 11, for example, rotatably connected to the first housing 11.

[0052] It can be understood that when the coil in the electromagnetic mechanism is energized, the magnetic field generated by the electromagnetic mechanism can attract part of the action structure, thereby driving the action structure to move relative to the first housing 11, and then the action structure drives the moving reed 12 to deform and approach the static reed 13, until the moving contact on the moving reed 12 contacts the static contact on the static reed 13, thereby achieving conduction of the external circuit. The above is only an example for the convenience of understanding the action process of the relay, and the composition of the various components of the relay is not limited to the above description.

[0053] In some embodiments, the first housing 11 includes a bottom plate 116, four first side plates 117, and a partition 118. The four first side plates 117 are disposed on the bottom plate 116 and connected end to end to form a receiving space 110. The partition 118 is disposed on the bottom plate 116 and between the four first side plates 117 to divide the receiving space 110 into a first receiving space 111 and a second receiving space 112. One end of the four first side plates 117 away from the bottom plate 116 is surrounded to form an opening 114. In some embodiments, the opening 113 is disposed on one of the first side plates 117 and communicates with the opening 114.

[0054] Furthermore, in some embodiments, the relay 10 further includes a second housing 14, which is disposed at the opening 113 and fixedly connected to the first housing 11. The first housing 11 may be prepared by any suitable method such as injection molding. It is understandable that during the preparation process of the first housing 11 such as injection molding, due to the provision of the opening 114, the end of the first side plate 117 away from the bottom plate 116 lacks support, and since the opening 113 is connected to the opening 114, the structural support of the first housing 11 at the opening 113 is relatively weak, and the first housing 11 may be deformed during the preparation process, causing the size of the opening 113 to deviate from the design size. In the above relay 10, after preparing the first housing 11, the second housing 14 is installed at the opening 113 of the first housing 11. When the first housing 11 is deformed during the preparation process, resulting in a change in the size of the opening 113 relative to the design size, if the size of the opening 113 becomes smaller, the second housing 14 can open the opening 113 at the opening 113, thereby preventing the precision deviation of the opening 113 from affecting the assembly precision of the internal components on the first housing 11. At the same time, the reduction in the size of the opening can also increase the clamping force of the first housing 11 on the second housing 14 at the opening 113, thereby improving the stability of the connection between the first housing 11 and the second housing 14. If the size of the opening 113 becomes larger, the provision of the second housing 14 can reduce the gap between the second housing 14 and the first housing 11, thereby preventing the glue from leaking into the first housing 11 through the gap of the opening 113 due to the excessive gap during the dispensing process, thereby affecting the performance of the components in the first housing 11. Therefore, the provision of the second housing 14 on the first housing 11 can reduce the influence of the deformation of the first housing 11 during the preparation process on the assembly precision and internal components of the relay 10.

[0055] In some embodiments, the second housing 14 is provided with two slots 145 that penetrate through the second housing 14, the second housing 14 isolates the slots 145 from the first housing 11, and the movable spring piece 12 and the static spring piece 13 are respectively provided with two slots 145, that is, when the second housing 14 is installed at the opening 113, the second housing 14 can also isolate the movable spring piece 12, the static spring piece 13 from the first housing 11, and avoid the movable spring piece 12, the static spring piece 13 from directly contacting the first housing 11. This is beneficial to avoid the influence of the deformation of the first housing 11 on the installation accuracy of the movable spring piece 12 and the static spring piece 13, and can also avoid the deformation of the first housing 11 directly scraping the movable spring piece 12 and the static spring piece 13 to generate debris that affects the electrical connection performance of the movable spring piece 12 and the static spring piece 13.

[0056] It should be noted that, during the assembly process of the relay 10, the movable spring piece 12 and the static spring piece 13 can be first fixed to the first housing 11, so that the movable spring piece 12 and the static spring piece 13 partially extend out of the first housing 11 through the opening 113, and the movable spring piece 12 and the static spring piece 13 at the opening 113 are spaced from the first housing 11, and then the slot 145 is aligned with the static spring piece 13 and the movable spring piece 12, and the second housing 14 is installed at the opening 113 of the first housing 11, and the first housing 11 and the second housing 14 are fixed by any applicable method such as dispensing, and the static spring piece 13 and the movable spring piece 12 are inserted into the slot 145. While reducing the influence of the deformation of the first housing 11 on the movable spring piece 12 and the static spring piece 13, it is also conducive to simplifying the assembly process of the relay 10 and improving production efficiency.

[0057] In some embodiments, the opening 113 is disposed at a position where one of the first side plates 117 is adjacent to another adjacent first side plate 117, which is conducive to adapting to the structural layout in which the movable spring piece 12 and the static spring piece 13 are partially disposed in the second accommodating space 112. For example, the opening 113 can be formed between the end of one of the first side plates 117 and the other first side plate 117, and the first housing 11 lacks structural support at the opening 113, and the second housing 14 can effectively compensate for the influence of the deformation of the first housing 11 on the relay 10.

[0058] Further, in some embodiments, the heat deformation temperature of the second housing 14 is higher than the heat deformation temperature of the first housing 11, and the melting point of the second housing 14 is higher than the melting point of the first housing 11, that is, the temperature resistance of the second housing 14 is stronger than that of the first housing 11. Therefore, when the portion of the movable spring 12 and the static spring 13 outside the first housing 11 is electrically connected to an external circuit by welding or any other suitable method, if the heat generated by welding is conducted to the second housing 14 through the movable spring 12 and the static spring 13, since the second housing 14 isolates the first housing 11 from the movable spring 12 and the static spring 13, and the temperature resistance of the second housing 14 is stronger than that of the first housing 11, the second housing 14 is not easily deformed due to temperature rise, and the deformation of the first housing 11 due to temperature rise can be prevented from affecting the assembly accuracy of the movable spring 12 and the static spring 13 and the sealing performance of the relay 10. Furthermore, the cost per unit volume of materials with higher temperature resistance is usually higher than that of materials with lower temperature resistance. The above arrangement avoids deformation of the first housing 11 due to high temperature and does not require the first housing 11 to be made of a temperature-resistant material, which is beneficial to reducing the overall manufacturing cost of the relay 10. In some embodiments, the volume of the second housing 14 is less than 8% of the volume of the first housing 11, for example, it may be 5% of the volume of the first housing 11, which reduces the influence of deformation of the first housing 11 on the structure and performance, improves the temperature resistance of the relay 10, and is beneficial to reducing the parts cost of the relay 10.

[0059] The specific settings of the material and temperature resistance of the first shell 11 and the second shell 14 are not limited and can be designed according to the actual temperature resistance requirements, as long as the temperature resistance of the second shell 14 is stronger than that of the first shell 11, the deformation of the relay 10 during welding can reduce the influence of the relay performance. In some embodiments, the thermal deformation temperature of the first shell 11 is greater than or equal to 180°C and less than or equal to 210°C, and the melting point of the first shell 11 is greater than 230°C, for example, it can be 250°C. The thermal deformation temperature of the second shell 14 is greater than or equal to 250°C and less than or equal to 300°C, and the melting point of the second shell 14 can be greater than or equal to 300°C, for example, it can be 300°C. The material of the first shell 11 includes but is not limited to any applicable low-cost material such as polybutyleneterephthalate (PBT), and the material of the second shell 14 includes but is not limited to any applicable material with stronger temperature resistance such as polyhexamethylene terephthalamide (PA6T) and liquid crystal polymer (LCP).

[0060] It should be noted that the above description is only an example of the structure and function of the opening 113 and the second housing 14 in one embodiment. In the above description, the opening 113 can be used for the spring to pass through, and the second housing 14 is provided with a slot 145 for the spring to pass through. In other embodiments, the opening 113 on the first housing 11 can also be used for other components such as wires to pass through, as long as the second housing 14 can reduce the influence of the deformation of the opening 113 of the first housing 11 on the components.

[0061] Combination Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the second housing 14 can be an integral structure as a whole, the second housing 14 includes two sub-base bodies 141 and a connecting portion 142 connected between the two sub-base bodies 141, two slots 145 are respectively provided on the two sub-base bodies 141, and the two sub-base bodies 141 and the connecting portion 142 are an integral structure. Setting the second housing 14 as an integral structure can reduce the number of components of the relay 10 and simplify the assembly process of the relay 10. In some embodiments, the opening 113 of the first housing 11 can be provided with two sub-gaps (not shown in the figure), and the first housing 11 has a connecting structure 115 located between the two sub-gaps, and the connecting structure 115 defines one edge of the two sub-gaps. When the second housing 14 is provided at the opening 113, the slots 145 on the two sub-base bodies 141 are respectively provided corresponding to the two sub-gaps, and the connecting portion 142 is located on the side of the connecting structure 115 facing away from the second accommodating space 112.

[0062] Further, in some embodiments, the connection portion 142 is protruded on the side of the two sub-base bodies 141 facing away from the second accommodating space 112. The relay 10 also includes a first adhesive structure 15, and the first adhesive structure 15 adheres the moving reed 12, the static reed 13 and the second housing 14, wherein at least part of the first adhesive structure 15 adheres the moving reed 12, the static reed 13 and the second housing 14 on both sides of the connection portion 142. The first adhesive structure 15 includes but is not limited to an adhesive material for adhering the moving reed 12, the static reed 13 and the second housing 14 formed after curing any applicable glue. The connection portion 142 is provided to protrude from the sub-base body 141, and the protruding height of the connection portion 142 can increase the sealing depth of the first adhesive structure 15, thereby improving the connection reliability and sealing performance between the moving reed 12, the static reed 13, the first housing 11 and the second housing 14. Therefore, when the reed and the second shell 14 are adhered to each other through the first adhesive structure 15, if it is necessary to immerse one side where the first shell 11 and the second shell 14 are connected, that is, the bottom of the relay 10, in protective materials such as conformal coating to improve the protective performance of the relay 10, the improvement of the sealing performance by the connection part 142 can prevent the conformal coating from leaking into the interior of the relay 10 and affecting the performance of the internal components.

[0063] In some embodiments, it can be understood that when the reed and the second shell 14 are adhered to each other by the first adhesive structure 15, the second shell 14 is set at the opening 113. When the first shell 11 is deformed and the size of the opening 113 becomes larger relative to the design size, the second shell 14 can compensate for the increase in the size of the opening 113 and reduce the gap between the reed and the first shell 11 at the opening 113, thereby preventing the glue from leaking from the gap between the reed and the first shell 11 to the interior of the relay 10 when the first adhesive structure 15 is set by glue dot. The performance of the internal components is affected.

[0064] In some embodiments, the distance between at least parts of the two inner wall surfaces of the sub-base body 141 located on both sides of the slot 145 and facing each other gradually decreases in the direction from the connection portion 142 to the second accommodating space 112, that is, at least parts of the two inner wall surfaces facing each other of the sub-base body 141 form an outward flare. Thus, the two inner wall surfaces can also form a larger glue dispensing space, which is beneficial to improve the adhesion area and adhesion depth between the first adhesion structure 15 and the spring sheet and the second shell 14, thereby facilitating the connection reliability and sealing performance between the spring sheet, the second shell 14 and the first shell 11.

[0065] Combination Figure 7 , Figure 8 and Fig. 9As shown, in other embodiments, the second housing 14 may include two split parts, each part corresponding to a spring leaf. For example, the opening 113 of the first housing 11 includes two spaced-apart sub-notches, and the two second housings 14 include two split sub-base parts 143, the two sub-base parts 143 are respectively arranged at the two sub-notches and are respectively fixedly connected to the first housing 11, and two slots 145 are respectively arranged on the two sub-base parts 143, and the moving spring leaf 12 and the static spring leaf 13 are respectively penetrated through the slots 145 of the two sub-base parts 143. Providing the second housing 14 with two split structures can improve the fault tolerance of the second housing 14 structure, and at the same time facilitate the maintenance and replacement of each sub-base part 143.

[0066] Further, in some embodiments, when the second housing 14 includes two sub-base portions 143, the first housing 11 has a connecting structure 115 located between the two sub-notches, the connecting structure 115 defines one edge of the two sub-notches, and the connecting structure 115 is protruded on the side of the two sub-base portions 143 facing away from the second accommodating space 112. In this embodiment, the relay 10 can also adhere the reed and the second housing 14 through the first adhesive structure 15, wherein at least part of the first adhesive structure 15 is adhered to both sides of the connecting structure 115. Providing the protruding connecting structure 115 is also conducive to improving the adhesion depth of the first adhesive structure 15, thereby improving the adhesion strength and sealing performance between the reed, the second housing 14 and the first housing 11, and is conducive to preventing the leakage of the three-proof paint and other structures into the relay 10. In this embodiment, the sub-base portion 143 is located on both sides of the slot 145 and the two opposite inner wall surfaces can also form outward flares, which is also beneficial to improving the adhesion area and adhesion depth of the first adhesion structure 15, thereby improving the adhesion strength and sealing performance between the spring leaf, the second shell 14 and the first shell 11.

[0067] Please see again Figure 4 In some embodiments, one of the reed and the second housing 14 is provided with a first matching structure 131, and the other is provided with a second matching structure 144, and one of the first matching structure 131 and the second matching structure 144 is embedded in the other. Through the embedded matching connection of the first matching structure 131 and the second matching structure 144, the assembly strength of the reed and the second housing 14 can be improved, and the structural reliability of the relay 10 can be improved. Figure 4In the illustrated embodiment, both the moving spring piece 12 and the static spring piece 13 are provided with a first matching structure 131, and the positions of the second housing 14 corresponding to the two slots 145 are provided with a second matching structure 144, the first matching structure 131 can be a protrusion structure convexly provided on the outer peripheral surface of the moving spring piece 12 and the static spring piece 13, and the second matching structure 144 can be a groove structure concavely provided on the inner wall surface of the second housing 14 corresponding to the slot 145, and the first matching structure 131 is embedded in the second matching structure 144 to improve the connection strength between the spring piece and the second housing 14. Of course, the first matching structure 131 and the second matching structure 144 can also be any other applicable settings, and the connection method between the first matching structure 131 and the second matching structure 144 includes but is not limited to any applicable method such as snap-fit, plug-in, and nesting.

[0068] Please see again Figure 4 In some embodiments, the first shell 11 has an inner wall surface surrounding the opening 113, and the outer peripheral surface of the second shell 14 is at least partially in contact with the inner wall surface. The size of the second shell 14 can be adapted to the design size of the opening 113, so that when the second shell 14 is installed at the opening 113, the opening 113 can be propped open, or the gap between the second shell 14 and the opening 113 can be reduced, thereby reducing the impact of the size deformation of the opening 113 on the structure and performance of the relay 10.

[0069] Please see again Figure 1 and Figure 2As shown, in some embodiments, the relay 10 further includes a housing 16 and a second bonding structure (not shown in the figure), the housing 16 is provided with an installation space and a loading port 163 communicating with the installation space, the first housing 11 is provided with an opening 114 communicating with the first accommodation space 111 and the second accommodation space 112, at least part of the first housing 11 is accommodated in the installation space, the housing 16 closes the opening 114, the second housing 14 is located at the loading port 163, and the second bonding structure bonds the first housing 11 and the housing at the loading port 163. For example, the second bonding structure is arranged around the periphery of the first housing 11 at the loading port 163 and bonds the first housing 11 and the second housing 14, and the second bonding structure includes but is not limited to being formed by curing any applicable glue. It is understandable that, during the assembly process of the relay 10, the first housing 11, the reed and the second housing 14 can be assembled first, and then the first housing 11 can be loaded into the installation space from the loading port 163 until the second housing 14 is located at the loading port 163, and then glue is dispensed at the loading port 163 to adhere the first housing 11 and the housing 16. With such a configuration, compared with the conventional configuration of the cover plate structure covering the opening 114 of the first housing 11, the glue dispensing process for forming the second adhesion structure of the relay 10 is more convenient, and the housing 16 closes the opening 114, and the second adhesion structure is helpful to improve the sealing performance of the relay 10. The housing 16 includes four second side plates 162 connected end to end and a top plate 161 connected to one end of the four second side plates 162, and the four second side plates 162 are surrounded at one end away from the top plate 161 to form the loading port 163. Of course, the structure and component composition of the relay 10 can also have other configurations, which are not limited in this application.

[0070] In some other embodiments not shown in the drawings of the present application, the relay 10 may not be provided with a housing 16, and the relay 10 may include a cover body, which is connected to one end of the plurality of first side plates 117 away from the bottom plate 116 and covers the opening 114, so as to protect the components in the accommodating space 110. In some other embodiments not shown in the drawings, the cover body may also be integrally formed or fixedly connected with the first housing 11, and cover the open space formed by one end of the plurality of first side plates 117 away from the bottom plate 116, and the part of the open space not covered by the cover body is regarded as the opening 114 of the first housing 11, and the first side plate 117 corresponding to the opening 114 is provided with an opening 113 connected with the opening 114. Since the cover body only covers part of the open space, the part of the open space forming the opening 114 is not covered by the cover body, so that the first side plate 117 lacks support at the opening 113, and the provision of the second housing 14 is also conducive to reducing the influence of the deformation of the first housing 11.

[0071] Please see again Figure 3 , Figure 4 and Figure 5The present application also provides a method for preparing a relay 10, which can be used to prepare the relay 10 as described in any of the above embodiments. In some embodiments, the preparation method includes the following steps:

[0072] The movable spring piece 12 and the stationary spring piece 13 are installed in the second accommodation space 112 of the first housing 11, and the movable spring piece 12 and the stationary spring piece 13 extend out of the first housing 11 through two sub-notches respectively, and the parts of the movable spring piece 12 and the stationary spring piece 13 at the sub-notches are spaced from the first housing 11;

[0073] The second housing 14 is installed at the opening 113, so that the movable spring 12 and the static spring 13 are respectively passed through the second housing 14 from the two slots 145, and the second housing 14 separates the spring from the first housing 11;

[0074] The reed and the second shell 14 are fixed by glue dispensing to form a first bonding structure 15 bonding the second shell 14 and the reed, so that the first shell 11, the reed and the second shell 14 are combined into an integral structure.

[0075] When the second housing 14 is an integrated structure and has two slots 145, the above preparation method can be used to prepare the relay 10. In some embodiments, when the second housing 14 is a split structure, for example, the second housing 14 includes two split sub-base parts 143, the preparation method may include the following steps:

[0076] The two sub-base parts 143 are mounted on the movable spring piece 12 and the static spring piece 13 in a one-to-one correspondence, so that the movable spring piece 12 and the static spring piece 13 pass through the two sub-base parts 143 from the two slots 145 respectively;

[0077] Part of the movable spring piece 12 and the static spring piece 13 are installed in the second accommodation space 112, so that the two sub-base parts 143 are installed in the two sub-notches one by one, and the movable spring piece 12 and the static spring piece 13 extend out of the first housing 11 through the two sub-base parts 143 respectively;

[0078] The spring sheet, the first housing 11 and the two sub-base portions 143 are fixed by glue.

[0079] In the relay 10 manufactured by the above two manufacturing methods, the second housing 14 can be arranged at the opening 113 after the first housing 11 is manufactured to open the opening 113 or reduce the gap between the opening 113 and the reed, thereby reducing the influence of the change in the size of the opening 113 caused by the deformation of the first housing 11 on the structure and performance of the relay 10. More components, structures and functions of the relay 10 can be obtained by referring to the above description, and will not be repeated here.

[0080] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A relay, characterized in that: include: A first shell, comprising a bottom plate and a plurality of first side plates, wherein the plurality of first side plates are connected to the bottom plate along a periphery of the bottom plate, an accommodation space is formed between the plurality of first side plates and the bottom plate, the first shell further comprises an opening located on a side of the accommodation space facing away from the bottom plate and connected to the accommodation space, wherein at least one of the first side plates further comprises an opening connected to the opening; and, The second shell is disposed at the opening and is fixedly connected to the first shell.

2. The relay according to claim 1, characterized in that: The relay further includes a reed, wherein a portion of the reed is accommodated in the accommodation space and passes through the second housing.

3. The relay according to claim 2, characterized in that: The thermal deformation temperature of the second shell is higher than the thermal deformation temperature of the first shell; and / or, The melting point of the second shell is higher than the melting point of the first shell.

4. The relay according to claim 2, characterized in that: The reeds include a moving reed and a stationary reed. The second housing is provided with two slots penetrating the second housing. The second housing isolates the two slots from the first housing. The moving reed and the stationary reed are respectively provided with the two slots.

5. The relay according to claim 4, characterized in that: The second shell includes two sub-base bodies and a connecting portion connected between the two sub-base bodies, the two slots are respectively arranged in the two sub-base bodies, and the two sub-base bodies and the connecting portion are an integrated structure.

6. The relay according to claim 5, characterized in that: The connecting portion is protruding from a side of the sub-base body facing away from the accommodating space; and / or, The distance between at least parts of two opposite inner wall surfaces of the sub-base body gradually decreases in the direction from the connecting portion to the accommodating space.

7. The relay according to claim 4, characterized in that: The opening includes two spaced-apart sub-notches, the second shell includes two sub-base parts, the two sub-base parts are respectively arranged in the two sub-notches and are respectively fixedly connected to the first shell, and the two slots are respectively arranged in the two sub-base parts.

8. The relay according to claim 7, characterized in that: The first shell includes a connecting structure located between the two sub-notches, and the connecting structure is protrudingly arranged on a side of the two sub-base portions facing away from the accommodating space.

9. The relay according to claim 2, characterized in that: One of the reed and the second housing is provided with a first matching structure, and the other is provided with a second matching structure, and one of the first matching structure and the second matching structure is embedded in the other.

10. The relay according to claim 2, characterized in that: The relay further includes a first adhesion structure that adheres the reed and the second housing.

11. The relay according to any one of claims 1 to 10, characterized in that: The first shell has an inner wall surface surrounding the opening, and the outer peripheral surface of the second shell at least partially abuts against the inner wall surface.

12. The relay according to any one of claims 1 to 10, characterized in that: The relay also includes a shell and a second bonding structure, the shell is provided with an installation space and a loading port connected to the installation space, at least a portion of the first shell is accommodated in the installation space, the shell closes the opening, the second shell is located at the loading port, and the second bonding structure bonds the first shell and the shell at the loading port.

13. The relay according to any one of claims 1 to 10, characterized in that: The opening is arranged at a position where one of the first side plates is adjacent to another adjacent first side plate.

14. The relay according to any one of claims 1 to 10, characterized in that: The volume of the second shell is less than 8% of the volume of the first shell.

15. A method for preparing a relay, characterized in that: include: A spring, a first shell and a second shell are provided, wherein the first shell is provided with a receiving space and an opening penetrating the first shell, and the second shell is provided with a slot; Installing the reed into the accommodating space so that a portion of the reed extends out of the first housing through the opening, and a portion of the reed corresponding to the opening is spaced apart from the first housing; Install the second housing to the opening so that the reed passes through the second housing from the slot, and the second housing isolates the reed from the second housing; The reed and the second housing are fixed.

16. A method for preparing a relay, characterized in that: include: A spring, a first shell and a second shell are provided, wherein the first shell is provided with a receiving space and an opening penetrating the first shell, and the second shell is provided with a slot; Installing the second housing onto the reed so that the reed passes through the second housing from the slot; Installing part of the reed into the accommodating space so that the second housing is installed at the opening and the reed extends out of the first housing through the second housing; The reed, the first housing and the second housing are relatively fixed.

Images