relay

Abstract

The present disclosure provides a relay, which comprises a base and a fixing frame arranged on the base and in plug-in cooperation with the base, the base is provided with a glue groove, the fixing frame comprises a body and a plug-in protrusion arranged on the side of the body facing the base and inserted into the glue groove, the plug-in protrusion has an end face facing the bottom of the glue groove and a side face connected between the end face and the body; the fixing frame is provided with an exhaust through hole, one end of the exhaust through hole is located in the end face of the plug-in protrusion or the region of the side face adjacent to the end face, and is in communication with the glue groove, and the other end of the exhaust through hole is located outside the glue groove. Through the above design, the present disclosure can realize the exhaust of gas during the glue injection process by the exhaust through hole arranged in the fixing frame, reduce the glue material flowing into the exhaust through hole during the glue injection process, and relieve or avoid the blockage of the exhaust through hole, so as to optimize the gluing effect of the fixing frame and the base, and improve the stability and reliability of the relay.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electric control devices, and in particular to a relay. BACKGROUND

[0002] In the design of a relay, the relay includes a base and a positioning frame, the positioning frame has a plug-in protrusion, the base has a glue groove, and the plug-in protrusion is inserted into the glue groove and is gluedly connected. During the glue injection process, the cavity in the glue groove needs to be discharged, otherwise these gases will produce bubbles in the interior of the glue material during the drying process, affecting the bonding effect. However, the existing relay provides a gas discharge channel by opening a glue overflow groove on the inner wall of the plug-in groove. During the glue injection process, the glue material will be filled in the glue overflow groove in large quantities, causing the glue overflow groove to be blocked, affecting the discharge of the gas, and thus affecting the gluing effect of the positioning frame and the base, and reducing the stability and reliability of the relay. SUMMARY

[0003] One of the main purposes of the present disclosure is to overcome at least one of the defects of the prior art, and to provide a relay with a better gluing effect of a fixing frame and a base.

[0004] To achieve the above-mentioned purpose, the present disclosure adopts the following technical solutions:

[0005] According to one aspect of the present disclosure, a relay is provided, wherein: a base and a fixing frame are included, the fixing frame is arranged on the base and is in plug-in cooperation with the base, the base is provided with a glue groove, the fixing frame includes a body and a plug-in protrusion, the plug-in protrusion is arranged on one side of the body facing the base and is inserted into the glue groove, the plug-in protrusion has an end face facing the bottom of the glue groove and a side face connected between the end face and the body; wherein the fixing frame is provided with an exhaust through hole, one end of the exhaust through hole is located in the region of the end face or the side face adjacent to the end face of the plug-in protrusion, and the other end of the exhaust through hole is located outside the glue groove.

[0006] According to one of the embodiments of the present disclosure, a glue injection groove is arranged on the part of the side groove wall of the glue groove adjacent to the top, the groove opening of the glue injection groove is communicated with the groove opening of the glue groove, the groove opening of the glue injection groove has an open area not covered by the fixing frame, and the open area serves as a glue injection port.

[0007] According to one of the embodiments of the present disclosure, the ratio of the first depth of the glue injection groove to the second depth of the glue groove is 0.1-0.5.

[0008] According to one of the embodiments of the present disclosure, the height of the bottom of the glue injection groove gradually decreases from one end of the glue injection port to one end of the glue groove, so that the bottom of the glue injection groove is in the shape of a slope.

[0009] According to one of the embodiments of the present disclosure, the base is provided with a glue blocking protrusion, which is higher than the glue injection port and located at least on the side of the glue injection port away from the glue groove.

[0010] According to one of the embodiments of the present disclosure, the position of the exhaust through hole communicating with the hole of the glue groove is closer to the groove bottom of the glue groove than the groove bottom of the glue injection groove.

[0011] According to one of the embodiments of the present disclosure, the length of the plug-in protrusion is less than the second depth of the glue groove, so that there is a first gap between the end of the plug-in protrusion away from the body and the groove bottom of the glue groove.

[0012] According to one of the embodiments of the present disclosure, the inner wall at the hole of the glue groove is provided with a first chamfer structure, so that there is a second gap between the inner wall at the hole of the glue groove and the plug-in protrusion.

[0013] According to one of the embodiments of the present disclosure, the edge of the end of the plug-in protrusion away from the body has a second chamfer structure, so that there is a third gap between the end of the plug-in protrusion away from the body and the inner wall of the glue groove.

[0014] According to one of the embodiments of the present disclosure, the ratio of the cross-sectional area of the exhaust through hole to the cross-sectional area of the plug-in protrusion is 0.2-0.7.

[0015] From the above technical solutions, the relay proposed by the present disclosure has the following advantages and positive effects:

[0016] The relay proposed by the present disclosure comprises a base and a fixing frame, the base is provided with a glue groove, and the plug-in protrusion of the fixing frame is arranged on the side of the body facing the base and inserted into the glue groove. The fixing frame is provided with an exhaust through hole, one end of the exhaust through hole is located at the end face of the plug-in protrusion or the region adjacent to the end face of the side face, and is connected with the glue groove, and the other end of the exhaust through hole is located outside the glue groove. Through the above design, the present disclosure can realize the exhaust of gas during the glue injection process by using the exhaust through hole of the fixing frame, reduce the glue material flowing to the exhaust through hole during the glue injection process, and alleviate or avoid the blockage of the exhaust through hole, so as to optimize the gluing effect of the fixing frame and the base, and improve the stability and reliability of the relay. BRIEF DESCRIPTION OF DRAWINGS

[0017] The various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments of the present disclosure, taken in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals always designate the same or similar components. Among them:

[0018] Figure 1is a perspective structural schematic view of a partial structure of a relay according to an exemplary embodiment;

[0019] Figure 2 is a plan view of Figure 1 ;

[0020] Figure 3 is a sectional view taken along a straight line A-A in Figure 2 ;

[0021] Figure 4 is a perspective structural schematic view of a base shown in Figure 1 ;

[0022] Figure 5 is a plan view of Figure 4 ;

[0023] Figure 6 is a sectional view taken along a straight line B-B in Figure 5 ;

[0024] Figure 7 is a perspective structural schematic view of a fixing frame shown in Figure 1 ;

[0025] Figure 8 is a bottom view of Figure 7 ;

[0026] Figure 9 is a sectional view taken along a straight line C-C in Figure 8 ;

[0027] Figure 10 is a sectional view of a partial structure of a relay according to another exemplary embodiment.

[0028] Reference signs are explained as follows:

[0029] 100. Base

[0030] 110. Glue groove

[0031] 111. First chamfer structure

[0032] 120. Glue injection groove

[0033] 121. Glue injection port

[0034] 130. Glue blocking protrusion

[0035] 200. Fixing frame

[0036] 210. Body

[0037] 220. Plug-in protrusion

[0038] 2201. End surface

[0039] 2202. side surface;

[0040] 221. second chamfer structure;

[0041] a. exhaust vent hole;

[0042] G1. first gap;

[0043] G2. second gap;

[0044] G3. third gap;

[0045] H1. first depth;

[0046] H2. second depth;

[0047] L. length. DETAILED DESCRIPTION

[0048] Embodiments embodying the features and advantages of the present disclosure will be described in detail hereinafter. It should be understood that the present disclosure can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the disclosure to those skilled in the art.

[0049] In the following description of various example embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the present disclosure can be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps can be utilized and that structural and functional modifications can be made without departing from the scope of the present disclosure. Also, while the terms "top," "bottom," "front," "back," and the like can be used in this specification to describe different example features and elements of the present disclosure, these terms are used herein merely for purposes of illustration and are not intended to be limiting, as example embodiments of the present disclosure can be implemented in different orientations. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the present disclosure.

[0050] Referring now to the drawings Figure 1 which representatively illustrates a perspective structural schematic diagram of a portion of a relay according to the present disclosure. In this example embodiment, the relay according to the present disclosure is described by way of example as applied to a medium-high voltage relay. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes can be made to the specific embodiments described below without departing from the principles of the relay according to the present disclosure.

[0051] As Figure 1As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figures 2 to 9 , Figure 2 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 1 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 3 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 2 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 4 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 5 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 4 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 6 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 5 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 7 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 8 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 7 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 9 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figure 8 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see

[0052] As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figures 1 to 9 As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see

[0053] As shown in the embodiment of the present disclosure, the relay proposed by the present disclosure comprises a base 100 and a fixing frame 200. For reference, see Figures 3 to 6As shown in the embodiment of the present disclosure, in the part where the side wall of the glue groove 110 abuts the opening, an injection glue groove 120 is arranged, the opening of the injection glue groove 120 is communicated with the opening of the glue groove 110, and the opening of the injection glue groove 120 has an open area which is not covered by the fixing frame 200, that is, as an injection glue port 121, for injecting glue material through the injection glue port 121 in the injection glue process, and making the glue material enter the glue groove 110 through the injection glue groove 120, so as to realize the bonding and fixing of the plug-in protrusion 220 in the glue groove 110.

[0054] As shown in the embodiment of the present disclosure, in the part where the side wall of the glue groove 110 abuts the opening, an injection glue groove 120 is arranged, the opening of the injection glue groove 120 is communicated with the opening of the glue groove 110, and the opening of the injection glue groove 120 has an open area which is not covered by the fixing frame 200, that is, as an injection glue port 121, for injecting glue material through the injection glue port 121 in the injection glue process, and making the glue material enter the glue groove 110 through the injection glue groove 120, so as to realize the bonding and fixing of the plug-in protrusion 220 in the glue groove 110. Figure 6 As shown in the embodiment of the present disclosure, in the part where the side wall of the glue groove 110 abuts the opening, an injection glue groove 120 is arranged, the opening of the injection glue groove 120 is communicated with the opening of the glue groove 110, and the opening of the injection glue groove 120 has an open area which is not covered by the fixing frame 200, that is, as an injection glue port 121, for injecting glue material through the injection glue port 121 in the injection glue process, and making the glue material enter the glue groove 110 through the injection glue groove 120, so as to realize the bonding and fixing of the plug-in protrusion 220 in the glue groove 110.

[0055] As shown in the embodiment of the present disclosure, in the part where the side wall of the glue groove 110 abuts the opening, an injection glue groove 120 is arranged, the opening of the injection glue groove 120 is communicated with the opening of the glue groove 110, and the opening of the injection glue groove 120 has an open area which is not covered by the fixing frame 200, that is, as an injection glue port 121, for injecting glue material through the injection glue port 121 in the injection glue process, and making the glue material enter the glue groove 110 through the injection glue groove 120, so as to realize the bonding and fixing of the plug-in protrusion 220 in the glue groove 110. Figure 3 Figure 6 As shown in the embodiment of the present disclosure, in the part where the side wall of the glue groove 110 abuts the opening, an injection glue groove 120 is arranged, the opening of the injection glue groove 120 is communicated with the opening of the glue groove 110, and the opening of the injection glue groove 120 has an open area which is not covered by the fixing frame 200, that is, as an injection glue port 121, for injecting glue material through the injection glue port 121 in the injection glue process, and making the glue material enter the glue groove 110 through the injection glue groove 120, so as to realize the bonding and fixing of the plug-in protrusion 220 in the glue groove 110.

[0056] As shown in the embodiment of the present disclosure, in the part where the side wall of the glue groove 110 abuts the opening, an injection glue groove 120 is arranged, the opening of the injection glue groove 120 is communicated with the opening of the glue groove 110, and the opening of the injection glue groove 120 has an open area which is not covered by the fixing frame 200, that is, as an injection glue port 121, for injecting glue material through the injection glue port 121 in the injection glue process, and making the glue material enter the glue groove 110 through the injection glue groove 120, so as to realize the bonding and fixing of the plug-in protrusion 220 in the glue groove 110. Figure 3 Figure 6 ​​As shown, in an embodiment of the present disclosure, the base 100 can be provided with a glue blocking protrusion 130 which is higher than the glue injection port 121 and located at least on the side of the glue injection port 121 away from the glue groove 110. Through the above design, the present disclosure can achieve the blocking of glue material by using the glue blocking protrusion 130, so as to avoid the overflow of glue material from the glue injection port 121 to other areas of the base 100 during the glue injection process, and ensure that the functions and structures of other areas of the base 100 are not affected. It should be noted that the glue blocking protrusion 130 shown in the figure is only located on the side of the glue injection port 121 away from the glue groove 110, and in some embodiments, the glue blocking protrusion 130 can also be located on other sides of the glue injection port 121 except the side facing the glue groove 110, which is not limited to the present embodiment.

[0057] Based on the design of the glue groove 110 and the glue injection groove 120, in an embodiment of the present disclosure, the position of the one end hole of the exhaust through hole a communicating with the glue groove 110 can be closer to the groove bottom of the glue groove 110 than the groove bottom of the glue injection groove 120. In other words, in various possible embodiments consistent with the design concept of the present disclosure, the above-mentioned hole of the exhaust through hole a can not only be located Figure 7 As shown, the end surface 2201 of the plug-in protrusion 220 only needs to ensure that the position of the above-mentioned hole of the exhaust through hole a is between the groove bottom of the glue injection groove 120 and the groove bottom of the glue groove 110, and the effect of reducing the blockage of glue material in the exhaust through hole a can also be achieved.

[0058] As shown in Figure 6 and Figure 9 As shown, in an embodiment of the present disclosure, the length L of the plug-in protrusion 220 can be less than the second depth H2 of the glue groove 110, so that a first gap G1 exists between the end of the plug-in protrusion 220 away from the body 210 and the groove bottom of the glue groove 110. Through the above design, the present disclosure can accommodate glue material by using the first gap G1, so as to further improve the gluing effect of the plug-in protrusion 220 and the glue groove 110. At the same time, when the one end opening of the exhaust through hole a is located at the end of the plug-in protrusion 220 away from the body 210, the gas in the glue material can be more fully discharged through the exhaust through hole a in the drying process.

[0059] As shown in Figure 3 and Figure 6As shown, in an embodiment of the present disclosure, the inner wall at the notch of the glue groove 110 can be provided with a first chamfer structure 111, whereby a second gap G2 is formed between the inner wall at the notch of the glue groove 110 and the plug-in protrusion 220. Through the above design, the present disclosure can provide a guiding function by using the first chamfer structure 111 during the process of inserting the plug-in protrusion 220 into the glue groove 110, so that the plug-in operation is more smooth and accurate. Furthermore, the second gap G2 formed between the first chamfer structure 111 and the plug-in protrusion 220 can also accommodate part of the glue material, thereby further improving the gluing effect of the plug-in protrusion 220 and the glue groove 110. It should be noted that the first chamfer structure 111 shown in the drawings adopts a structure type of "arc angle + bevel", and in some embodiments, the first chamfer structure 111 can also adopt other structure types such as "arc angle" and "bevel", and is not limited to the present embodiment.

[0060] As shown in Figure 3 and Figure 9 , in an embodiment of the present disclosure, the edge of the end of the plug-in protrusion 220 away from the body 210 can have a second chamfer structure 221, whereby a third gap G3 is formed between the end of the plug-in protrusion 220 away from the body 210 and the inner wall of the glue groove 110. Through the above design, the present disclosure can provide a guiding function by using the second chamfer structure 221 during the process of inserting the plug-in protrusion 220 into the glue groove 110, so that the plug-in operation is more smooth and accurate. Furthermore, the third gap G3 formed between the second chamfer structure 221 and the glue groove 110 can also accommodate part of the glue material, thereby further improving the gluing effect of the plug-in protrusion 220 and the glue groove 110. It should be noted that the second chamfer structure 221 shown in the drawings adopts a structure type of "arc angle + bevel", and in some embodiments, the second chamfer structure 221 can also adopt other structure types such as "arc angle" and "bevel", and is not limited to the present embodiment.

[0061] As shown in Figure 3 , Figures 7 to 9 , in an embodiment of the present disclosure, the one end opening of the exhaust through hole a can be located on the end face of the end of the plug-in protrusion 220 away from the body 210. Through the above design, the present disclosure can make the one end opening of the exhaust through hole a closer to the groove bottom of the glue groove 110, so that the bubbles in the glue material are more fully and completely discharged in the drying process, further improving the fixing effect of the fixing frame 200 and the base 100.

[0062] Referring to Figure 10 , Figure 10 , a cross-sectional view of part of the structure of a relay capable of embodying the principle of the present disclosure in another exemplary embodiment is shown, and the specific cross-sectional view can refer to the cross-sectional view of FIG. Figure 3 , and the cross-sectional view of FIG. Figure 2 .

[0063] Differently from Figures 7 to 9 In the embodiment shown, the one end opening of the exhaust hole a is located on the end surface of the one end of the insertion protrusion 220 away from the body 210. In an embodiment of the present disclosure, the one end opening of the exhaust hole a can also be located on the side surface of the insertion protrusion 220. For example, taking the exhaust hole a as the first hole a provided in the insertion protrusion 220 and penetrating through the fixing frame 200, the hole channel of the first hole a can be a curved path, and the bending direction is not toward the one side of the glue injection groove 120, and further preferably the bending direction is away from the one side of the glue injection groove 120.

[0064] In an embodiment of the present disclosure, the ratio of the cross-sectional area of the exhaust hole a to the cross-sectional area of the insertion protrusion 220 can be 0.2-0.7, such as 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, etc. Through the above design, the present disclosure can avoid that the cross-sectional area of the exhaust hole a is too small, thereby ensuring a better exhaust effect. At the same time, the present disclosure can avoid that the cross-sectional area of the exhaust hole a is too large, thereby avoiding affecting the structural strength of the insertion protrusion 220 and ensuring the design needs. It should be noted that the so-called "cross-sectional area" refers to the cross-sectional area observed on the cross section of the insertion protrusion 220 after the insertion protrusion 220 is cut by a plane perpendicular to the axial direction (i.e. the depth direction of the glue groove 110) of the insertion protrusion 220. In some embodiments, the ratio of the cross-sectional area of the exhaust hole a to the cross-sectional area of the insertion protrusion 220 can also be less than 0.2 or greater than 0.7, such as 0.19, 0.71, etc., and is not limited to the present embodiment.

[0065] It should be noted that the relays shown in the drawings and described in the present specification are only a few examples of many relays that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the relays shown in the drawings or described in the present specification or any components of the relays.

[0066] In summary, the relay provided by the present disclosure comprises a base 100 and a fixing frame 200, the base 100 is provided with a glue groove 110, and the plug-in protrusion 220 of the fixing frame 200 is arranged on the side of the body 210 facing the base 100 and is inserted into the glue groove 110. The fixing frame 200 is provided with an exhaust through hole a, one end of the exhaust through hole a is located at the end face 2201 of the plug-in protrusion 220 or the area of the side face 2202 adjacent to the end face 2201, and is in communication with the glue groove 110, and the other end of the exhaust through hole a is located outside the glue groove 110. Through the above design, the relay provided by the present disclosure can realize the exhaust of gas in the glue injection process by the exhaust through hole a provided by the fixing frame 200, reduce the glue material flowing into the exhaust through hole a in the glue injection process, and alleviate or avoid the blockage of the exhaust through hole a, so as to optimize the gluing effect of the fixing frame 200 and the base 100, and improve the stability and reliability of the relay.

[0067] The exemplary embodiments of the relay provided by the present disclosure are described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein, but rather, components and / or steps of each embodiment can be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment can also be used in combination with other components and / or steps of other embodiments. The phraseology and terminology used herein is for the purpose of description and not of limitation. The terms "a" or "an" are used herein to mean one or more than one, and the term "the" is used herein to mean the one and only one. The term "plurality" is used herein to mean more than one. The term "another" is used herein to mean one or more than one. The term "comprising" is used herein to mean including, but not limited to. The term "including" is used herein to mean including, but not limited to. The term "including" and "including" is used herein to mean including, but not limited to. The term "first" and "second" are used herein to mean the first and the second, and are not used to limit a number of the objects.

[0068] Although the relay provided by the present disclosure has been described in accordance with various specific embodiments, one skilled in the art will recognize that modifications can be made to the embodiments of the present disclosure within the spirit and scope of the claims.

Claims

1. A relay, characterized in that: comprising a base and a fixing frame, the fixing frame is arranged on the base and is insertedly matched with the base, the base is provided with a glue groove, the fixing frame comprises a body and an insertion protrusion, the insertion protrusion is arranged on the side of the body facing the base and is inserted into the glue groove, the insertion protrusion has an end face facing the bottom of the glue groove and a side surface connected between the end face and the body; wherein the fixing frame is provided with an exhaust through hole, one end of the exhaust through hole is located in the area of the end face or the side surface adjacent to the end face of the insertion protrusion, and is communicated with the glue groove, the other end of the exhaust through hole is located outside the glue groove; wherein the part of the side wall of the glue groove adjacent to the top is provided with a glue injection groove, and the groove opening of the glue injection groove is communicated with the groove opening of the glue groove. The groove opening of the glue injection groove has an open area not covered by the fixing frame, which serves as a glue injection port.

2. The relay according to claim 1, characterized in that The ratio of the first depth of the glue injection groove to the second depth of the glue groove is 0.1-0.

5.

3. The relay according to claim 2, characterized in that The height of the bottom of the glue injection groove gradually decreases from one end of the glue injection port to one end of the glue groove, so that the bottom of the glue injection groove is in the shape of a slope.

4. The relay of claim 2, wherein The base is provided with a glue blocking protrusion, which is higher than the glue injection port and located on at least one side of the glue injection port away from the glue groove.

5. The relay of claim 2, wherein The position of the exhaust through hole communicated with the opening of the glue groove is closer to the bottom of the glue groove than the bottom of the glue injection groove.

6. The relay of claim 2, wherein The length of the insertion protrusion is smaller than the second depth of the glue groove, so that there is a first gap between the end of the insertion protrusion away from the body and the bottom of the glue groove.

7. The relay of claim 1, wherein The inner wall at the groove opening of the glue groove is provided with a first chamfer structure, so that there is a second gap between the inner wall at the groove opening of the glue groove and the insertion protrusion.

8. The relay of claim 1, wherein The edge of the end of the insertion protrusion away from the body has a second chamfer structure, so that there is a third gap between the end of the insertion protrusion away from the body and the inner wall of the glue groove.

9. The relay of claim 1, wherein The ratio of the cross-sectional area of the exhaust through hole to the cross-sectional area of the insertion protrusion is 0.2-0.

7.

10. The relay of claim 1, wherein ​

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