Relay and dry reed relay

Abstract

The utility model discloses a relay and a dry reed relay. The relay comprises a body and a shielding cover. The body comprises a coil assembly and an insulator wrapping the coil assembly, the coil assembly comprises a coil rack and a coil winding wound on the coil rack, and retaining walls are arranged at the two ends of the coil rack in the Z-axis direction respectively; the body is provided with two first surfaces, the two first surfaces are perpendicular to the Y-axis direction, two protruding parts are arranged on each first surface of the body in a protruding mode, and the two protruding parts correspond to the two retaining walls in the Y-axis direction. Each first surface is at least partially shielded by the shielding case, and the shielding case avoids the protruding parts. The dry reed relay is the relay. By the adoption of the technical scheme, the magnetic shielding function is achieved, on one hand, compared with an external shielding case in the prior art, the thickness can be made thinner, and therefore the occupied board size can be reduced; and on the other hand, compared with a built-in shielding case scheme in the prior art, the risk of quality problems can be reduced.

Description

Technical Field

[0001] The present application relates to the field of magnetic shielding, and in particular to a relay and a reed relay. Background Art

[0002] In the prior art, the relay includes a reed relay. This reed relay has the characteristics of small size, long life, low power consumption, fast response and high reliability. Reed relays are mainly used in the detection industry. In specific applications, reed relays are generally densely installed on circuit boards. In addition to the main body, the reed relay also has a shielding cover. In addition to preventing the relays from influencing each other, the shielding cover can also reduce the interference of the external magnetic field on the magnetic circuit part of the relay. The shielding cover is generally divided into two types: built-in and external. Users have found in long-term use that reed relays with external shielding covers are often thicker than reed relays with built-in shielding covers, which makes them occupy a larger board area and is not conducive to increasing the layout density of the device on the circuit board during installation. Although the reed relay with a built-in shielding cover is thinner, it has a greater risk of quality problems in the production process than the reed relay with an external shielding cover. The above dilemma faced by the above-mentioned reed relay also exists in its relay. Utility Model Content

[0003] The purpose of the present application is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a relay and a reed relay, which have a magnetic shielding function. On the one hand, compared with the external shielding cover solution in the prior art, the thickness can be made thinner, thereby helping to reduce the board volume; on the other hand, compared with the built-in shielding cover solution in the prior art, the risk of quality problems can be reduced.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] The first technical scheme relates to a relay, which includes: a body, which includes a coil assembly and an insulator wrapped around the coil assembly; the coil assembly includes a coil frame and a coil winding wound on the coil frame, and the coil frame is provided with retaining walls at both ends along the Z-axis direction; the body is provided with two first surfaces, the two first surfaces are perpendicular to the Y-axis direction, and the body is provided with two protrusions on each first surface, and the two protrusions correspond to the two retaining walls along the Y-axis direction; and a shielding cover, each first surface is at least partially shielded by the shielding cover, and the shielding cover gives way to each of the protrusions.

[0006] The second technical solution is based on the first technical solution, wherein each of the retaining walls is provided with two second surfaces, and the two second surfaces are perpendicular to the Y-axis direction; the projection of the two second surfaces of each retaining wall on the first projection surface is located within the projection of the corresponding protrusion on the first projection surface; and the first projection surface is perpendicular to the Y-axis direction.

[0007] The third technical solution is based on the second technical solution, wherein at least part of the edge of the second surface is provided with a first chamfer and / or a first rounding outwardly, and the projection of the first chamfer and / or the first rounding on the first projection surface is at least partially allowed to be located outside the projection of the corresponding protrusion on the first projection surface.

[0008] The fourth technical solution is based on the first technical solution, wherein the shielding cover is plugged into the body along a plugging direction perpendicular to the Y-axis direction, and the protrusion is provided with a stop surface, which prevents the shielding cover from deviating from the plugging direction and detaching from the body.

[0009] The fifth technical solution is based on the fourth technical solution, wherein the plugging direction is perpendicular to the X-axis direction.

[0010] The sixth technical solution is based on the fifth technical solution, wherein the shielding cover is provided with two shielding walls and a connecting wall, the two shielding walls respectively shield at least a portion of the first surface perpendicular to the Y-axis direction, and the connecting wall is used to connect the two shielding walls.

[0011] The seventh technical solution is based on the sixth technical solution, wherein the two shielding walls are interference fit with the two first surfaces.

[0012] The eighth technical solution is based on the sixth technical solution, wherein the connecting wall is perpendicular to the Z-axis direction.

[0013] The ninth technical solution is based on the sixth technical solution, wherein the coil assembly is located on the first side along the X-axis direction, a connecting terminal is provided at the first end of the body along the Z-axis direction, a third surface is provided at the second end of the body along the Z-axis direction, the third surface is more biased toward the second side of the body along the X-axis direction, and the connecting wall is against or close to the third surface.

[0014] The tenth technical solution is based on the ninth technical solution, wherein the main body is provided with a first flange and a raised portion; the first flange protrudes from the third surface along the Z-axis direction and is located at the edge of the second side of the main body along the X-axis direction; the raised portion protrudes from the third surface along the Z-axis direction and extends from the edge of the first side of the main body along the X-axis direction toward the first flange along the X-axis direction; the raised portion is connected to the protrusion near the second end of the main body along the Z-axis direction to form a protrusion; the third surface and the connecting wall are located between the first flange and the raised portion along the X-axis direction.

[0015] The eleventh technical solution is based on the tenth technical solution, wherein the first flange and the protrusion are respectively provided with inclined surfaces opposite to each other along the X-axis direction, and the two inclined surfaces are close to each other along the plug-in direction.

[0016] The twelfth technical solution is based on the tenth technical solution, wherein the two sides of the protrusion along the Y-axis direction are respectively provided with a second chamfer and / or a second chamfer, each second chamfer and / or second chamfer is provided with a chamfer away from the first end of the body along the Z-axis direction, both chamfers extend along the X-axis direction, and the distance between the two chamfers along the Y-axis direction is less than the size of the third surface along the Y-axis direction.

[0017] The thirteenth technical solution is based on the tenth technical solution, wherein the main body is provided with second flanges on the edges on both sides of each first surface along the X-axis direction, the second flanges protrude from the first surface along the Y-axis direction and extend along the Z-axis direction, and each shielding wall is located between the two second flanges along the X-axis direction.

[0018] The fourteenth technical solution is based on the thirteenth technical solution, wherein the second flange located on the first side of the body along the X-axis direction is connected to the protrusion along the Z-axis direction; the second flange located on the second side of the body along the X-axis direction is connected to the first flange along the Z-axis direction.

[0019] The fifteenth technical solution is based on the thirteenth technical solution, wherein the main body is provided with a third flange at the edge of each first surface away from the third surface along the Z-axis direction, the third flange protrudes from the first surface along the Y-axis direction and extends along the X-axis direction, and each shielding wall does not cross the third flange along the plug-in direction.

[0020] The sixteenth technical solution is based on the fifteenth technical solution, wherein the third flange is connected to the two second flanges along the X-axis direction.

[0021] The seventeenth technical solution is based on the fifteenth technical solution, wherein the dimensions of the first flange and the protrusion along the Z-axis direction are greater than or equal to the wall thickness of the connecting wall; the dimensions of the second flange, the third flange and the protrusion along the Y-axis direction are greater than or equal to the wall thickness of the shielding wall.

[0022] The eighteenth technical solution is based on any one of the first to seventeenth technical solutions, wherein the material of the insulator is plastic, and the main body is integrally formed by insert injection molding.

[0023] The nineteenth technical solution relates to a reed relay, which is a relay as described in any one of the first to eighteenth technical solutions, wherein the coil assembly also includes a reed switch, which is placed in the coil frame and extends along the Z-axis direction; the connection terminals of the body include two signal input terminals electrically connected to the coil winding and two control output terminals electrically connected to the reed switch.

[0024] The twentieth technical solution is based on the nineteenth technical solution, wherein the main body also includes a suppression element, the suppression element is connected in parallel with the coil winding and is wrapped by the insulator, the suppression element and the coil assembly are respectively located on both sides of the main body along the X-axis direction; the suppression element is located on the second side of the main body along the X-axis direction; each connecting terminal is arranged along the X-axis direction, the signal input terminal is located on the second side of the main body along the X-axis direction, and the control output terminal is located on the first side of the main body along the X-axis direction.

[0025] Compared with the prior art, the above technical solution has the following beneficial effects:

[0026] In order to more clearly discuss the beneficial effects of the above technical solution, the structures of the reed relay with an external shielding cover and the reed relay with an internal shielding cover in the prior art are first introduced in detail. Secondly, the reasons for the problems or defects of the above two reed relays in the prior art found by the applicant through observation, analysis and research are discussed. Finally, the technical effects of the technical solution of this application are discussed.

[0027] See also Figures 1 to 4 . Figures 1 to 4 FIG. 1 shows a reed relay 1' with an external shielding cover in the prior art. Figure 1 As shown, the reed relay 1' with an external shielding cover in the prior art includes a body 2' and a shielding cover 3'. Figure 3 As shown, the body 2' includes a coil assembly 4, a suppression element (not shown), an insulator 6' and a connection terminal 7. The coil assembly 4 includes a coil frame 8, a coil winding 9 and a reed switch 10. Figure 3 As shown, the coil frame 8 is used to install the coil winding 9 and the reed switch 10. The coil frame 8 is provided with retaining walls 11 at both ends along the Z-axis direction, and a supporting shaft 12 extending along the Z-axis direction is provided between the two retaining walls 11. The coil winding 9 is wound on the supporting shaft 12 and is used to be excited by a control electric signal to form a control magnetic field. The reed switch 10 is placed in the supporting shaft 12 and extends along the Z-axis direction. The suppression element is connected in parallel with the coil winding 9 and is used to suppress the reverse electromotive force of the coil winding 9 when the control electric signal disappears. The insulator 6' wraps the coil assembly 4 and the suppression element 5. As shown Figure 1 As shown, a connection terminal 7 is provided at one end of the body 2' along the Z-axis direction, and the portion of the connection terminal 7 exposed from the insulator 6' extends from the insulator 6' along the Z-axis direction. The connection terminal 7 includes two signal input terminals 13 and two control output terminals 14. The two signal input terminals 13 are electrically connected to the coil winding 9 to introduce control electrical signals. The two control output terminals 14 are electrically connected to the reed switch 10 to control the on / off of the external circuit. In the prior art, the insulator in the body 2' is made of plastic, and the body 2' is generally molded as an insert injection molded one-piece. Figure 4As shown, in the prior art reed relay 1' with an external shielding cover, in order to protect the coil winding 9, the retaining wall 11 protrudes further from the outer edge of the coil winding 9 along the Y-axis direction, and there is a first distance L1 between the two. In order to prevent the plastic constituting the coil frame 8 from easily generating air gaps during the integral injection molding of the body insert, which may cause the coil winding 9 to contact the external environment and be corroded, thereby causing product failure, the insulator 6' needs to be sufficiently thick outside the coil frame 8 along the Y-axis direction for wrapping, which is called the allowable thickness L2. Figure 1 As shown, in the prior art reed relay 1' with an external shielding cover, the shielding cover 3' is provided on the two surfaces of the body 2' perpendicular to the Y-axis direction and the upper surface along the Z-axis direction, and is buckled to the lower surface along the Z-axis direction. The shielding cover 3' needs to be bent four times and bonded to the body through a glue dispensing process. After the shielding cover 3' is fixed, it is also necessary to print the model, certification mark and other inscriptions on the surface perpendicular to the Y-axis direction.

[0028] In the prior art reed relay with built-in shielding cover, the shielding cover 3' is generally installed between the two retaining walls 11 of the coil frame 8 and directly covers or is set on the coil winding 9 through a dispensing process. The body 2' and the shielding cover 3' are integrally formed by insert injection molding, and the insulator 6' not only wraps the coil assembly 4 and the suppression element 5 but also wraps the shielding cover 3'.

[0029] The applicant discovered that the reason why the reed relay 1' with an external shielding cover in the prior art is thicker than the reed relay with an internal shielding cover is that the reed relay with an internal shielding cover places the shielding cover between the baffle walls 11, so that it fully utilizes the first distance L1 between the baffle wall 11 and the outer edge of the coil winding 9. Therefore, while maintaining the thickness of the outer insulator of the baffle wall 11 along the Y-axis direction, the thickness of at least part of the shielding cover 3' located within the first distance L1 does not affect the total thickness, so the thickness can be made thinner.

[0030] The applicant has discovered that the reason why the reed relay with a built-in shielding cover in the prior art has a greater risk of quality problems during the production process than the reed relay 1' with an external shielding cover is that the reed relay with a built-in shielding cover places the shielding cover 3' between the retaining walls 11, which makes it easy for the shielding cover to damage or contaminate the enameled wire of the coil winding 9 during the assembly process, and therefore has a greater risk of quality problems during the production process.

[0031] In the first technical solution, along the Y-axis direction, a protrusion is provided on the first surface of the body corresponding to the retaining wall, so that the thickness of the insulator outside the retaining wall can meet the requirement of the allowable thickness. The shielding cover gives way to the protrusion, and the shielding cover does not need to cover the position where the retaining wall is located. The first distance, the allowable thickness and the wall thickness of the shielding cover are no longer superimposed along the Y-axis direction. Therefore, compared with the prior art, the thickness of the reed relay with the shielding cover outside can be made thinner.

[0032] In the first technical solution, since each first surface of the main body is at least partially shielded by the shielding cover, it can be seen that the shielding cover of the relay in the first technical solution is also external, so the coil winding will not be damaged or contaminated during the shielding cover assembly process. Compared with the reed relay with built-in shielding cover in the prior art, the risk of quality problems can be reduced.

[0033] In the first technical solution, although the shielding cover gives way to the protrusion corresponding to the retaining wall, the shielding cover can still magnetically shield the coil winding and the reed switch, so the shielding cover in the first technical solution still has the magnetic shielding function.

[0034] The second and third technical solutions are specific implementations of the first technical solution. The influence of the retaining wall on the thickness of the reed relay mainly lies in the distance between the two second surfaces of the same retaining wall. Therefore, when the projections of the two second surfaces are located within the projection of the protrusion, the thickness of the insulator outside the retaining wall can meet the allowable thickness requirement. Although the first chamfer and / or the first rounding outside the second surface are also part of the retaining wall, most of them will not affect the thickness of the reed relay, so it is allowed that the projection of the first chamfer and / or the first rounding is at least partially located outside the projection of the protrusion.

[0035] In the fourth technical solution, the shielding cover is plugged into the main body along a plug-in direction perpendicular to the Y-axis direction. Compared with the reed relay with an external shielding cover in the prior art, the shielding cover does not need to be bent four times, which not only improves the assembly efficiency, but also has fewer scratches due to relative friction during bending. It is not only more beautiful, but also more conducive to improving the clarity of subsequent printed inscriptions.

[0036] In the fifth technical solution, the plugging direction is perpendicular to the X-axis direction and also perpendicular to the Y-axis direction, so the plugging direction is unidirectional in the Z-axis direction. The shielding cover is plugged in along the Z-axis direction, which is conducive to taking foolproof measures along the X-axis direction, making it easier for users to identify which side along the X-axis direction is the signal input terminal. If the shielding cover is plugged in along the X-axis direction, it is more difficult to take foolproof measures in the X-axis direction.

[0037] The sixth technical solution is a specific implementation of the fifth technical solution. The connecting wall connects the two shielding walls, so that the shielding cover becomes a whole, which is easier to assemble.

[0038] In the seventh technical solution, the two shielding walls are interference fit with the two first surfaces, so that after the shielding cover is plugged in, it can be fixed relative to the main body, and no additional gluing process is needed, thus avoiding other problems caused by gluing.

[0039] In the eighth technical solution, the connecting wall is perpendicular to the Z-axis direction, so the shielding cover only needs to be bent twice to be formed. Not only the assembly efficiency is improved, but also fewer scratches appear due to relative friction during bending, which is not only more beautiful, but also more conducive to improving the clarity of subsequent printed inscriptions.

[0040] In the ninth technical solution, the third surface is closer to the second side of the body along the X-axis direction, so that the relay has a foolproof function, and the user can more easily identify which side along the X-axis direction is the signal input terminal. The connecting wall abuts against or is close to the third surface, which can reduce the height of the relay component along the Z-axis direction.

[0041] In the tenth technical solution, first, by the relative position of the first flange and the protrusion, the third surface is located between the first flange and the protrusion along the X-axis direction, so that the design of the third surface is more biased towards the first side of the X-axis direction can be realized; second, the connecting wall is located between the first flange and the protrusion, which can not only limit the connecting wall along the X-axis direction, but also make the connecting wall less susceptible to the force in the X-axis direction; third, the raised portion is connected to the protrusion close to the second end of the main body along the Z-axis direction, which can reduce the complexity of the injection mold of the main body, make the main body easier to demold, and make the appearance of the main body more neat and beautiful.

[0042] In the eleventh technical solution, the first flange and the protrusion are respectively provided with inclined surfaces opposite to each other along the X-axis direction, and the two inclined surfaces are close to each other along the plug-in direction, so that the assembly of the connecting wall toward the third surface can be guided, which makes assembly more convenient and the shielding cover is less likely to deflect along the X-axis direction.

[0043] In the twelfth technical solution, the protrusion is provided with a second chamfer and / or a second rounded corner on both sides along the Y-axis direction, and the distance between the two chamfers along the Y-axis direction is smaller than the size of the third surface along the Y-axis direction, which can provide guidance when the wall shield is plugged into the main body, making the wall shield easier to plug in.

[0044] In the thirteenth technical solution, the shielding wall is located between the two second flanges on the first surface along the X-axis direction, so that the shielding wall can be limited along the X-axis direction and is less susceptible to the force in the X-axis direction.

[0045] In the fourteenth technical solution, the two second flanges are connected to the convex block and the first flange respectively, which can not only reduce the complexity of the main body injection mold and make the main body more neat and beautiful, but also make the part where the connecting wall and the shielding wall are connected less susceptible to the force in the X-axis direction.

[0046] In the fifteenth technical solution, the shielding wall does not go over the third flange on the first surface along the plugging direction, so that the shielding wall is less susceptible to the force that deviates from the plugging direction.

[0047] In the sixteenth technical solution, the third flange is connected to the corresponding two second flanges, which can not only reduce the complexity of the main body injection mold, make the main body more integrated, neat and beautiful, but also protect the corners of the shielding wall, making the corners less susceptible to force. The first flange, the second flange, the third flange, and the convex block are connected to each other to make the relay stronger when subjected to the bending moment in the Y-axis direction.

[0048] In the seventeenth technical scheme, the dimensions of the first flange and the protrusion along the Z-axis direction are greater than or equal to the wall thickness of the connecting wall, and the dimensions of the second flange, the third flange and the protrusion along the Y-axis direction are greater than or equal to the wall thickness of the shielding wall, so that the entire shielding cover cannot be touched in other directions perpendicular to the Y-axis except the plug-in direction, thereby strengthening the protection of the shielding cover by the main body, making it more difficult for the shielding cover to deviate from the plug-in direction and detach from the main body, which is beneficial to fix the shielding cover relative to the main body and ensure the shielding effect.

[0049] In the eighteenth technical solution, the main body is molded as an integral piece by insert injection molding, which has better bonding strength and is simpler to manufacture.

[0050] The nineteenth technical solution has the corresponding technical effect of the technical solution it references.

[0051] The twentieth technical solution provides an overall fool-proof design solution for the reed relay, allowing users to more easily identify which side the signal input terminal is located along the X-axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solution of the embodiment, the following briefly introduces the drawings required for use:

[0053] Figure 1 A three-dimensional diagram of a reed relay with an external shielding cover in the prior art;

[0054] Figure 2 It is a front view of the body in the prior art;

[0055] Figure 3 for Figure 2 AA section view;

[0056] Figure 4 for Figure 3 A partial enlarged view of part B;

[0057] Figure 5 is a front view of a reed relay in an embodiment;

[0058] Figure 6 It is a right side view of the main body in the first embodiment;

[0059] Figure 7 for Figure 6 CC section view;

[0060] Figure 8 is a three-dimensional diagram of the coil assembly in the first embodiment;

[0061] Fig. 9 It is a front view of the body in the first embodiment;

[0062] Fig.10 It is a partial stereogram of the main body in the first embodiment;

[0063] Fig.11 It is a top view of the main body in the first embodiment;

[0064] Fig.12 is a three-dimensional diagram of the shielding cover in the first embodiment;

[0065] Fig.13 for Figure 1 DD section view;

[0066] Fig.14 for Fig.13 A partial enlarged view of part E;

[0067] Fig.15 for Fig.13 A partial enlarged view of part F.

[0068] Description of main reference numerals:

[0069] 1. Reed relay; 1', reed relay with external shielding cover in the prior art; 2. body; 2', body (in the prior art); 3. shielding cover; 3', shielding cover (in the prior art); 4. coil assembly; 5. suppression element; 6. insulator; 6', insulator (in the prior art); 7. connecting terminal; 8. coil frame; 9. coil winding; 10. reed switch; 11. retaining wall; 12. supporting shaft; 13. signal input terminal; 14. control output terminal; 15. second surface; 16. first chamfer; 17. fourth surface; 18. third surface; 19. first surface; 20. first flange ; 21. raised portion; 22. inclined surface; 23. protruding portion; 24. second flange; 25. third flange; 26. first protruding portion; 27. second protruding portion; 27a. guide surface; 28. stop surface; 29. ​​bump; 30. second chamfer; 31. chamfer; 32. shielding wall; 33. connecting wall; 34. plug-in port; 35. notch; 36. clearance hole; L1. first distance; L2. allowable thickness; L3. second distance; L4. first dimension; third distance L5; fourth distance L6; L7. second dimension; L8. wall thickness; W. plug-in direction; X. X-axis direction; Y. Y-axis direction; Z. Z-axis direction. DETAILED DESCRIPTION

[0070] In the claims and the description, unless otherwise defined, the terms "first", "second" or "third", etc. are intended to distinguish different objects rather than to describe a specific order.

[0071] In the claims and the specification, unless otherwise defined, terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings and are only for the convenience of simplifying the description and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0072] In the claims and the specification, unless otherwise defined, the term "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0073] In the claims and the description, unless otherwise defined, the terms "includes", "has" and their variations mean "including but not limited to".

[0074] In the claims and the specification, unless otherwise defined, the term "provided with" means that the technical feature located thereafter is a part of the technical feature located therefor.

[0075] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings.

[0076] Example

[0077] In the following description, the Y-axis direction should be understood as the thickness direction of the device. Generally, in order to reduce the board area, the Z-axis direction should be understood as the height direction of the device (perpendicular to the circuit board), and the X-axis direction should be understood as the width direction of the device.

[0078] See also Figure 5 , Figure 5 FIG. 1 shows a reed relay 1 in this embodiment. Figure 5 As shown, the reed relay 1 includes a body 2 and a shielding cover 3 .

[0079] See also Figure 6 and Figure 7 , Figure 6 and Figure 7 The main body 2 in the main body embodiment is shown. Figure 7 As shown, the body 2 includes a coil assembly 4 , a suppression element 5 , an insulator 6 and a connection terminal 7 .

[0080] like Figure 7 As shown, the coil assembly 4 is the main functional component of the reed relay 1, which is used to receive the control electrical signal from the outside to control the on and off of the external circuit. The coil assembly 4 includes a coil frame 8, a coil winding 9 and a reed switch 10. The coil frame 8 is used to carry and install the coil winding 9 and the reed switch 10. The material of the coil frame 8 is plastic and is provided with two retaining walls 11 and a support shaft 12. The two retaining walls 11 are arranged at both ends of the coil frame 8 along the Z-axis direction, and the support shaft 12 is located between the two retaining walls 11 and connected to the two retaining walls 11 as a whole. The support shaft 12 is used to support the coil winding 9, and the support shaft 12 extends along the Z-axis direction. The coil winding 9 is used to be excited by the control electrical signal to form a control magnetic field. The coil winding 9 is wound on the support shaft 12, and its axis extends along the Z-axis direction. The reed switch 10 is used to be controlled by the control magnetic field to realize the on and off function. The reed switch 10 includes two reeds, and the two reeds are closed or opened by the control magnetic field, and are opened or closed accordingly after the control magnetic field disappears. The reed switch 10 is placed in the coil frame 8 and extends along the Z-axis direction, with two ends thereof extending out of two ends of the coil frame 8 along the Z-axis direction.

[0081] like Figure 7 As shown, the suppression element 5 is used to suppress the reverse electromotive force of the coil winding 9 when the control electric signal disappears. The suppression element 5 is connected in parallel with the coil winding 9. The coil assembly 4 and the suppression element 5 are arranged in the body 2 along the X-axis direction. The coil assembly 4 is located on the first side of the body 2 along the X-axis direction (the right side in the figure), and the suppression element 5 is located on the second side of the body 2 along the X-axis direction (the left side in the figure).

[0082] like Figure 7 As shown, the insulator 6 wraps the coil assembly 4 and the suppression element 5. In this embodiment, the insulator is made of plastic.

[0083] like Figure 7 As shown, a connecting terminal 7 is provided at the first end of the body 2 along the Z-axis direction, and the portion of the connecting terminal 7 exposed from the insulator 6' extends from the insulator 6 along the Z-axis direction. There are four connecting terminals 7, including two signal input terminals 13 and two control output terminals 14. The two signal input terminals 13 are electrically connected to the coil winding 9 and are used to introduce the control electrical signal into the coil winding 9. The two control output terminals 14 are electrically connected to the reed switch 10 and are used to lead the on-off control of the reed switch 10 to an external circuit. The portion of the connecting terminal 7 that does not extend out of the insulator 6 is also wrapped by the insulator 6. Each connecting terminal 7 is arranged along the X-axis direction, wherein the two signal output terminals 13 are located on the second side of the body 2 along the X-axis direction, and the two control output terminals 14 are located on the first side of the body 2 along the X-axis direction.

[0084] In this embodiment, the coil winding 9 is firstly wound on the coil frame 8 to form the coil assembly 4. Then the coil assembly 4, the reed switch 10, the suppression element 5 and each connection terminal 7 are electrically connected and integrally formed by insert injection molding.

[0085] See also Figure 8 , Figure 8 The coil assembly 4 in this embodiment is shown. Figure 8 As shown, in this embodiment, each retaining wall 11 is provided with two second surfaces 15. The two second surfaces 15 are perpendicular to the Y-axis direction, and at least part of the edge of each second surface 15 is provided with a first chamfer 16 outwardly, and the first chamfer 16 can also be a first rounded corner, or the first chamfer 16 is combined with the first rounded corner. In this embodiment, the second surface 15 is provided with a first chamfer 16 on both sides along the X-axis direction. In this embodiment, a section parallel to the second surface 15 is made on the outer edge surface of the coil winding 9, and a first distance L1 is formed between the section and the adjacent second surface.

[0086] See also Figures 9 to 11 , Figures 9 to 11 The main body 2 in this embodiment is shown. Fig. 9 As shown, the outer surface of the insulator 6 includes a fourth surface 17, a third surface 18 and two first surfaces 19. Among them, the fourth surface 17 is located at the first end of the insulator 6 along the Z-axis direction, and each connecting terminal 7 extends from the fourth surface 17 along the Z-axis direction. The third surface 18 is located at the second end of the body 2 along the Z-axis direction. Both first surfaces 19 are perpendicular to the Y-axis direction and arranged along the Y-axis direction. The body 2 also has two side surfaces arranged along the X-axis direction. The two side surfaces do not involve the invention of this patent, so they are not introduced in detail.

[0087] like Fig.10 As shown, the body 2 is provided with a first flange 20 and a protrusion 21. The first flange 20 protrudes from the third surface 18 along the Z-axis direction and is located at the edge of the second side of the body 2 along the X-axis direction. The protrusion 21 protrudes from the third surface 18 along the Z-axis direction and extends from the edge of the first side of the body 2 along the X-axis direction toward the first flange 20 along the X-axis direction. The third surface 18 is located between the first flange 20 and the protrusion 21 along the X-axis direction, and the third surface 18 is arranged more biased toward the second side of the body 2 along the X-axis direction.

[0088] like Fig.10 and Fig.11 As shown, the first flange 20 and the raised portion 21 are respectively provided with inclined surfaces 22 opposite to each other along the X-axis direction, and the two inclined surfaces 22 are close to each other along the plugging direction W. The plugging direction W is unidirectional, and in this embodiment is a direction from top to bottom, which is perpendicular to the Y-axis direction, and in this embodiment is also perpendicular to the X-axis direction.

[0089] like Fig. 9 and Fig.10As shown, the body 2 is provided with two protrusions 23 , two second flanges 24 and one third flange 25 on each first surface 19 .

[0090] like Fig. 9 and Fig.10 As shown, the two protrusions 23 correspond to two retaining walls 11 along the Y-axis direction. The projections of the two second surfaces 15 of each retaining wall 11 on the first projection plane are located within the projection of the corresponding protrusion 23 on the first projection plane. The first projection plane is perpendicular to the Y-axis direction. Specifically, in this embodiment, the projection of the first chamfer 16 on the first projection plane is at least partially allowed to be located outside the projection of the corresponding protrusion 23 on the first projection plane. The portion of the first chamfer 16 close to the second surface 15 along the X-axis direction also protrudes from the outer edge surface of the coil winding 9 along the Y-axis direction, so its projection on the first projection plane is also located within the projection of the corresponding protrusion 23 on the first projection plane. Each protrusion 23 is provided with a stop surface 28. In this embodiment, the stop surface 28 is perpendicular to the Z-axis and close to the first end of the body 2 along the Z-axis direction, and its direction is the same as the plug-in direction W. In this embodiment, since the coil assembly 4 is located on the first side of the body 2 along the X-axis direction, the two protrusions 23 are both located on the first side of the body 2 along the X-axis direction. Since the two retaining walls 11 are arranged along the Z-axis direction, the two protrusions 23 are also arranged along the Z-axis direction. The two protrusions 23 are respectively a first protrusion 26 close to the second end of the body 2 along the Z-axis direction and a second protrusion 27 close to the first end of the body 2 along the Z-axis direction. The first protrusion 26 and the protrusion 21 are connected to form a convex block 29. The second protrusion 27 is provided with a guide surface 27a, the guide surface 27a is away from the first end of the body 2 along the Z-axis direction, and the guide surface 27a is inclined in the direction away from the first surface 19 along the plugging direction W.

[0091] like Fig.10 and Fig.11 As shown, the two sides of the protrusion 29 along the Y-axis direction are respectively provided with second chamfers 30, and the second chamfers 30 can also be second chamfers, or the second chamfers 30 are combined with second chamfers. Each second chamfer 30 is provided with a chamfer 31 away from the first end of the body 2 along the Z-axis direction. Both chamfers 31 extend along the X-axis direction. The two chamfers 31 are spaced apart along the Y-axis direction and form a second distance L3. The third surface 18 has a first size L4 along the Y-axis direction. The second distance L3 is smaller than the first size L4.

[0092] like Fig. 9 and Fig.10As shown, the two second flanges 24 are respectively located at the edges of both sides of the first surface 19 along the X-axis direction, and the second flanges 24 protrude from the first surface 19 along the Y-axis direction and extend along the Z-axis direction. The second flange 24 located at the first side of the body 2 along the X-axis direction is connected to the protrusion 29 along the Z-axis direction, and the second flange 24 located at the second side of the body 2 along the X-axis direction is connected to the first flange 20 along the Z-axis direction.

[0093] like Fig. 9 and Fig.10 As shown, the third flange 25 is located at an edge of the first surface 19 away from the third surface 18 along the Z-axis direction, and the third flange 25 protrudes from the first surface 19 along the Y-axis direction. The third flange 25 extends along the X-axis direction and connects with the two second flanges 24.

[0094] See also Fig.12 , Fig.12 The shielding cover 3 in this embodiment is shown. The shielding cover 3 is used to shield the coil winding 9 and the reed switch 10. On the one hand, it is used to make it difficult for the external magnetic field to interfere with the coil winding 9 and the reed switch 10; on the other hand, it is used to prevent the excitation magnetic field generated by the coil winding 9 of the reed relay 1 from interfering with other reed relays 1 when densely installed.

[0095] like Fig.12 As shown, in this embodiment, the shielding cover 3 is plugged into the body 2 along the plug-in direction W. The shielding cover 3 includes two shielding walls 32 and a connecting wall 33. The two shielding walls 32 respectively shield at least a portion of the first surface 19 perpendicular to the Y-axis direction. A plug-in port 34 is provided at the lower portion of the shielding wall 32 along the plug-in direction W. A notch 35 is provided at the upper portion of the shielding wall 32 along the plug-in direction W corresponding to the first side of the body 2. The notch 35 is used to make way for the protrusion 29 and is biased to the first side along the X-axis direction. A make-way hole 36 is also provided on the shielding wall 32, and the make-way hole 36 is used to make way for the second protrusion 27. The connecting wall 33 is perpendicular to the Z-axis direction and is used to connect the two shielding walls 32.

[0096] like Fig.12 As shown, in this embodiment, the two shielding walls 32 form a third distance L5 at a position close to the connecting wall 33; when the shielding cover 3 is not assembled to the main body 2, the two shielding walls 32 form a fourth distance L6 at the position of the plug-in port 34, and the fourth distance L6 is smaller than the third distance L5, and the fourth distance L6 is also smaller than the first size L4, but the fourth distance L6 is larger than the second distance L3.

[0097] See also Figure 5 , Figures 13 to 15 . Figure 1 , Figures 13 to 15The figure shows the reed relay 1 formed after the shielding cover 3 is plugged into the body along the plugging direction W. During the plugging process, the two shielding walls 32 respectively contact the corresponding second chamfers 30 along the plugging direction W, and the two shielding walls 32 expand after contacting the second chamfers 30. The shielding cover 3 is continuously moved along the plugging direction W, and the lower edge of the shielding wall 32 passes through the guide surface 27a of the second protrusion 27, so that the shielding wall 32 can continue to be assembled downward, and the connecting wall 33 enters between the two inclined surfaces 22 and is guided by the inclined surfaces 22 to continue to be assembled downward. Until the two shielding walls 32 recover their deformation, a state as shown in FIG. Figure 5 The reed relay 1 is shown.

[0098] like Figure 5 As shown, at this time, the two shielding walls 32 respectively shield at least part of the first surface 19 perpendicular to the Y-axis direction. Since the fourth distance L6 is smaller than the first dimension L4, the two shielding walls 32 are respectively fitted with the two first surfaces 19, and further, the two shielding walls 32 are interference fit with the two first surfaces 19. The clearance hole 36 is directly opposite to and makes way for the second protrusion 27, and the notch 35 makes way for the protrusion 29. The shielding wall 32 is located between the two second flanges 24 along the X-axis direction, and the shielding wall 32 does not cross the third flange 25 along the plugging direction W. The connecting wall 33 abuts the third surface 18. Of course, the connecting wall 33 can also be close to the third surface 18.

[0099] like Fig.13 and Fig.15 As shown, in this embodiment, the lower edge of the notch 35 of the shielding wall 32 is located below the stop surface 28 of the first protrusion 26, and the lower edge of the clearance hole 36 of the shielding wall 32 is located below the stop surface of the second protrusion 27, so that the shielding cover 3 cannot deviate from the plug-in direction W and detach from the body 2.

[0100] like Fig.14 and Fig.15 As shown, in this embodiment, the wall thickness of the connecting wall 33 is equal to the wall thickness of the shielding wall 32, both of which are wall thickness L8, so that the shielding cover 3 can be manufactured by bending the stamped plate twice. Fig.14 and Fig.15 As shown, the dimensions of the first flange 20 and the protrusion 21 along the Z-axis direction are both greater than or equal to the wall thickness L8. The second flange 24, the third flange 25 and the two protrusions 23 have a second dimension L7 along the Y-axis direction, and the second dimension L7 is greater than or equal to the wall thickness L8. In this embodiment, the dimensions of the first flange 20 and the protrusion 21 along the Z-axis are slightly greater than the wall thickness L8, and the second dimension L7 is slightly greater than the wall thickness L8.

[0101] like Fig.14 and Fig.15 As shown, in this embodiment, along the Y-axis direction, outside the retaining wall 11, the thickness of the insulator 6 still meets the requirement of the allowable thickness L2. In this embodiment, the first distance L1, the allowable thickness L2 and the wall thickness L8 of the shielding cover are no longer superimposed along the Y-axis direction.

[0102] The structure of the reed relay 1 in this embodiment can also be applied to other relays, and it is only necessary to determine whether to design the reed switch 10 and the suppression element 5 according to the actual situation.

[0103] In this embodiment, along the Y-axis direction, a protrusion 23 is provided on the first surface 19 of the body 2 corresponding to the retaining wall 11, so that the thickness of the insulator 6 outside the retaining wall 11 can meet the requirement of the allowable thickness L2. The shielding cover 3 gives way to the protrusion 23, and the first distance L1, the allowable thickness L2 and the wall thickness L8 are no longer superimposed along the Y-axis direction. Therefore, compared with the prior art, the thickness of the reed relay 1' with the shielding cover outside can be made thinner.

[0104] In this embodiment, the shielding cover 3 is also externally disposed on the body 2 , so that the coil winding 9 will not be damaged or contaminated during the assembly process of the shielding cover 3 . Compared with the reed relay built into the shielding cover in the prior art, the risk of quality problems can be reduced.

[0105] In this embodiment, although the shielding cover 3 gives way to the protrusion 23 corresponding to the retaining wall 11, the shielding cover 3 can still magnetically shield the coil winding 9 and the reed switch 10, and the shielding cover 3 has a magnetic shielding function.

[0106] In this embodiment, when the projections of the two second surfaces 15 are located within the projection of the protrusion 23, the thickness of the insulator 6 outside the retaining wall 11 can meet the requirement of the allowable thickness L2. Although the first chamfer 16 and / or the first rounded corners outside the second surface 15 are also part of the retaining wall 11, most of them will not affect the thickness of the reed relay 1. Therefore, the projections of the first chamfer 16 and / or the first rounded corners are allowed to be at least partially located outside the projection of the protrusion 23, which can also achieve the technical effect of reducing the thickness relative to the solution of externally placing the shielding cover in the prior art.

[0107] In this embodiment, the shielding cover 3 is plugged into the body 3 along the plugging direction W perpendicular to the Y-axis direction. Compared with the reed relay 1' with the shielding cover externally arranged in the prior art, the shielding cover 3 does not need to be bent four times, which not only improves the assembly efficiency, but also reduces the scratches caused by relative friction during bending, which is not only more beautiful, but also more conducive to improving the clarity of subsequent printed inscriptions.

[0108] In this embodiment, the plugging direction W is perpendicular to the X-axis direction and also perpendicular to the Y-axis direction, which is conducive to taking fool-proof measures along the X-axis direction and makes it easier for users to identify which side along the X-axis direction is the signal input terminal 13.

[0109] In this embodiment, the connecting wall 33 connects the two shielding walls 32 so that the shielding cover 3 becomes a whole, which is easier to assemble.

[0110] In this embodiment, the two shielding walls 32 are interference fit with the two first surfaces 29, so that after the shielding cover 3 is plugged in, it can be fixed relative to the main body 2, and no additional glue dispensing process is required. This can prevent the insulation performance of the relay surface from being reduced due to the precipitation of high molecular substances in the glue during use.

[0111] In this embodiment, the connecting wall 33 is perpendicular to the Z-axis direction, so the shielding cover 3 only needs to be bent twice to be formed. This not only improves the assembly efficiency, but also reduces the scratches caused by relative friction during bending, which is not only more beautiful, but also more conducive to improving the clarity of subsequent printed inscriptions.

[0112] In this embodiment, the third surface 18 away from the connection terminal 7 is closer to the second side of the body 2 along the X-axis direction, so that the reed relay 1 or other relays can have a foolproof function, and the user can more easily identify which side along the X-axis direction is the signal input terminal 13. The connection wall 33 abuts against or is close to the third surface 18, which can reduce the height of the reed relay 1 or other relays along the Z-axis direction.

[0113] In this embodiment, the relative positions of the first flange 20 and the bump 29 enable the third surface 18 to be located between the first flange 20 and the bump 21 along the X-axis direction, so that the third surface 18 can be designed to be closer to the second side in the X-axis direction.

[0114] In this embodiment, the connecting wall 33 is located between the first flange 20 and the protrusion 29 , which not only limits the connecting wall 33 along the X-axis direction, but also makes the connecting wall 33 less susceptible to the force in the X-axis direction.

[0115] In this embodiment, the protrusion 21 is connected to the first protrusion 26 near the second end of the body 3 along the Z-axis direction, which can reduce the complexity of the injection mold of the body 2, make the body 2 easier to demould, and make the appearance of the body 2 more neat and beautiful.

[0116] In this embodiment, the first flange 20 and the raised portion 21 are respectively provided with inclined surfaces 22 opposite to each other along the X-axis direction, and the two inclined surfaces 22 are close to each other along the plug-in direction W, so that the assembly of the connecting wall 33 in the direction of the third surface 18 can be guided, which is more convenient during assembly and the shielding cover 3 is less likely to deflect along the X-axis direction.

[0117] In this embodiment, the protrusion 29 is provided with a second chamfer 30 and / or a second chamfer on both sides along the Y-axis direction, and the second distance L3 of the two chamfers 31 is smaller than the first dimension L4 of the third surface 18 along the Y-axis direction, which can guide and expand the shielding wall 32 when the shielding wall 32 is plugged into the main body 2, making it easier to plug in the shielding wall 32.

[0118] In this embodiment, the shielding wall 32 is located between the two second flanges 24 on the first surface 19 along the X-axis direction, so that the shielding wall 32 can be limited along the X-axis direction and is less susceptible to the force in the X-axis direction.

[0119] In this embodiment, the two second flanges 24 are connected to the protrusion 29 and the first flange 20 respectively, which can not only reduce the complexity of the injection mold of the body 2 and make the body 2 more neat and beautiful, but also make the part where the connecting wall 32 and the shielding wall 33 are connected less susceptible to the force in the X-axis direction.

[0120] In this embodiment, the shielding wall 32 does not go over the third flange 25 on the first surface 19 along the plugging direction W, so that the shielding wall 32 is less susceptible to the force deviating from the plugging direction W.

[0121] In this embodiment, the third flange 25 is connected to the corresponding two second flanges 24, which can not only reduce the complexity of the injection mold of the body 2, making the body 2 more integrated, neat and beautiful, but also protect the corners of the shielding wall 32, making the corners less susceptible to force. The first flange 20, the second flange 24, the third flange 25, and the protrusion 29 are connected to each other to make the reed relay 1 or other relays stronger when subjected to the bending moment in the Y-axis direction.

[0122] In this embodiment, the dimensions of the first flange 20 and the protrusion 21 along the Z-axis direction are greater than or equal to the wall thickness L8 of the connecting wall 33, and the second dimension L7 of the second flange 24, the third flange 25 and the protrusion 23 along the Y-axis direction are greater than or equal to the wall thickness L8 of the shielding wall 32, so that the entire shielding cover 2 cannot be touched in other directions perpendicular to the Y-axis except the plug-in direction, thereby strengthening the protection of the shielding cover 3 by the main body 2, making it more difficult for the shielding cover 3 to deviate from the plug-in direction W and detach from the main body 23, which is conducive to fixing the shielding cover 3 relative to the main body 2 and ensuring the shielding effect.

[0123] In this embodiment, the main body 2 is integrally formed by insert injection molding, which has better bonding strength and is simpler to manufacture.

[0124] In this embodiment, since the connecting wall 33 is also biased toward the second side along the X-axis direction along with the third surface 18, and the signal input terminal 13 is also located on the second side of the body 2 along the X-axis direction, it is easier for the user to identify which side along the X-axis the signal input terminal 13 is located.

[0125] The above specification and description of the embodiments are used to explain the protection scope of the present application, but do not constitute a limitation on the protection scope of the present application.

Claims

1. A relay, characterized in that: include: A body (2), comprising a coil assembly (4) and an insulator (6) wrapped around the coil assembly (4); the coil assembly (4) comprises a coil frame (8) and a coil winding (9) wound on the coil frame (8), and the coil frame (8) is provided with retaining walls (11) at both ends along the Z-axis direction; the body (2) is provided with two first surfaces (19), the two first surfaces (19) are perpendicular to the Y-axis direction, and the body (2) is provided with two protruding portions (23) on each first surface (19), and the two protruding portions (23) correspond to the two retaining walls (11) along the Y-axis direction; and A shielding cover (3), each first surface (19) is at least partially shielded by the shielding cover (3), and the shielding cover (3) gives way to each of the protrusions (23).

2. A relay as claimed in claim 1, characterized in that: Each retaining wall (11) is provided with two second surfaces (15), and the two second surfaces (15) are perpendicular to the Y-axis direction; the projections of the two second surfaces (15) of each retaining wall (11) on the first projection plane are located within the projections of the corresponding protrusions (23) on the first projection plane; and the first projection plane is perpendicular to the Y-axis direction.

3. A relay as claimed in claim 2, characterized in that: At least part of the edge of the second surface (15) is provided with a first chamfer (16) and / or a first rounded corner outwardly, and the projection of the first chamfer (16) and / or the first rounded corner on the first projection plane is at least partly allowed to be located outside the projection of the corresponding protrusion (23) on the first projection plane.

4. A relay as claimed in claim 1, characterized in that: The shielding cover (3) is plugged into the body along a plugging direction (W) perpendicular to the Y-axis direction, and the protruding portion (23) is provided with a stop surface (28), and the stop surface (28) prevents the shielding cover (3) from deviating from the plugging direction (W) and detaching from the body (2).

5. A relay as claimed in claim 4, characterized in that: The plugging direction (W) is perpendicular to the X-axis direction.

6. A relay as claimed in claim 5, characterized in that: The shielding cover (3) is provided with two shielding walls (32) and a connecting wall (33); the two shielding walls (32) respectively shield at least a portion of the first surface (19) perpendicular to the Y-axis direction; and the connecting wall (33) is used to connect the two shielding walls (32).

7. A relay as claimed in claim 6, characterized in that: The two shielding walls (32) are interference-fitted with the two first surfaces (19).

8. A relay as claimed in claim 6, characterized in that: The connecting wall (33) is perpendicular to the Z-axis direction.

9. A relay as claimed in claim 6, characterized in that: The coil assembly (4) is located on the first side along the X-axis direction, the first end of the body (2) along the Z-axis direction is provided with a connecting terminal (7), the second end of the body (2) along the Z-axis direction is provided with a third surface (18), the third surface (18) is more biased towards the second side of the body (2) along the X-axis direction, and the connecting wall (33) is against or close to the third surface (18).

10. A relay as claimed in claim 9, characterized in that: The body (2) is provided with a first flange (20) and a raised portion (21); The first flange (20) protrudes from the third surface (18) along the Z-axis direction and is located at an edge of the second side of the body (2) along the X-axis direction; The protrusion (21) protrudes from the third surface (18) along the Z-axis direction and extends from the edge of the first side of the body (2) along the X-axis direction toward the first flange (20) along the X-axis direction; the protrusion (21) is connected to the protrusion (23) close to the second end of the body (2) along the Z-axis direction to form a convex block (29); The third surface (18) and the connecting wall (33) are located between the first flange (20) and the raised portion (21) along the X-axis direction.

11. A relay as claimed in claim 10, characterized in that: The first flange (20) and the raised portion (21) are respectively provided with inclined surfaces (22) that are opposite to each other along the X-axis direction, and the two inclined surfaces (22) are close to each other along the plugging direction.

12. A relay as claimed in claim 10, characterized in that: The protrusion (29) is provided with a second chamfer (30) and / or a second rounded corner on both sides along the Y-axis direction, each second chamfer (30) and / or second rounded corner is provided with a chamfer (31) away from the first end of the body (2) along the Z-axis direction, the two chamfers (31) both extend along the X-axis direction, and the distance between the two chamfers (31) along the Y-axis direction is less than the size of the third surface (18) along the Y-axis direction.

13. A relay as claimed in claim 10, characterized in that: The body (2) is provided with second flanges (24) on the edges of each first surface (19) on both sides along the X-axis direction. The second flanges (24) protrude from the first surface (19) along the Y-axis direction and extend along the Z-axis direction. Each shielding wall (32) is located between the two second flanges (24) along the X-axis direction.

14. A relay as claimed in claim 13, characterized in that: The second flange (24) located on the first side of the body (2) along the X-axis direction is connected to the protrusion (29) along the Z-axis direction; the second flange (24) located on the second side of the body (2) along the X-axis direction is connected to the first flange (20) along the Z-axis direction.

15. A relay as claimed in claim 13, characterized in that: The body (2) is provided with a third flange (25) on the edge of each first surface (19) away from the third surface (18) along the Z-axis direction. The third flange (25) protrudes from the first surface (19) along the Y-axis direction and extends along the X-axis direction. Each shielding wall (32) does not cross the third flange (25) along the plugging direction (W).

16. A relay as claimed in claim 15, characterized in that: The third flange (25) is connected to the two second flanges (24) along the X-axis direction.

17. A relay as claimed in claim 15, characterized in that: The dimensions of the first flange (20) and the protruding portion (21) along the Z-axis direction are both greater than or equal to the wall thickness of the connecting wall (33); the dimensions of the second flange (24), the third flange (25) and the protruding portion (23) along the Y-axis direction are both greater than or equal to the wall thickness of the shielding wall (32).

18. The relay according to any one of claims 1 to 17, characterized in that: The material of the insulator (6) is plastic, and the main body (2) is integrally formed by insert injection molding.

19. A reed relay, characterized in that: It is a relay as described in any one of claims 1 to 18, wherein the coil assembly (4) also includes a reed switch (10), and the reed switch (10) is placed in the coil frame (8) and extends along the Z-axis direction; the connection terminal (7) of the body (2) includes two signal input terminals (13) electrically connected to the coil winding (9) and two control output terminals (14) electrically connected to the reed switch (10).

20. A reed relay as claimed in claim 19, characterized in that: The body (2) further comprises a suppression element (5), the suppression element (5) being connected in parallel with the coil winding (9) and being wrapped by the insulator (6), the suppression element (5) and the coil assembly (4) being respectively located on two sides of the body (2) along the X-axis direction; the suppression element (5) being located on the second side of the body (2) along the X-axis direction; the connection terminals (7) being arranged along the X-axis direction, the signal input terminal (13) being located on the second side of the body (2) along the X-axis direction, and the control output terminal (14) being located on the first side of the body (2) along the X-axis direction.

Images