Shell and relay

Abstract

The utility model discloses a shell and a relay. Wherein the shell comprises a shell body and a first cover, the shell body is provided with a containing cavity and a first opening which is communicated with the containing cavity and is formed in the first direction, the first cover is fixedly connected with the shell body and is matched with the shell body to form a sealing cavity, the sealing cavity is suitable for containing the first sealing piece or a part of the first sealing piece, and the first cover shields the sealing cavity in the first direction. The relay adopts the shell and comprises the first sealing piece which is at least partially accommodated in the sealing cavity. By adopting the technical scheme, compared with the prior art, the waterproof effect is better or a material basis is provided for obtaining a better waterproof effect due to the fit clearance technology among the parts of the shell.

Description

Technical Field

[0001] The present application relates to a field, and in particular to a housing and a relay. Background Art

[0002] In the prior art, a relay generally includes a relay body, a housing, a signal terminal, and a load terminal. The relay body includes a magnetic circuit part and a contact part. The magnetic circuit part includes a coil assembly and an armature assembly. The contact part includes a moving contact and a static contact. The coil assembly receives a control signal and changes the magnetic field based on the control signal to drive the armature assembly to rotate or move linearly and drive the moving contact to move to close or disconnect with the static contact. The housing is used to accommodate the relay body. The signal terminal is electrically connected to the coil assembly and extends out of the housing to be electrically connected to an external control signal circuit. The load terminal is electrically connected to the contact part and extends out of the housing to be electrically connected to an external load circuit. The housing in the prior art is generally composed of several components, and the components are often fixed by fasteners. The fitting clearance between the components needs to be waterproof. 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 housing and a relay, which, compared with the prior art, has a better waterproof effect of the matching gaps between the various parts of the housing or provides a material basis for achieving a better waterproof effect.

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

[0005] The first technical solution relates to a housing, which includes a shell and a first cover, the shell is provided with a cavity and a first opening connected to the cavity and opened along a first direction, the first cover is fixedly connected to the shell and cooperates with the shell to form a sealed cavity, the sealed cavity is suitable for accommodating a first seal or a part of the first seal, and the first cover shields the sealed cavity along the first direction.

[0006] The second technical solution is based on the first technical solution, wherein the shell is provided with a first wall, the first opening is formed in the first wall, and the first cover is plugged into the first wall.

[0007] The third technical solution is based on the first technical solution, wherein the housing is provided with a first injection port, the sealing material is suitable for being injected into the sealing cavity through the first injection port, and the sealing material has fluidity and is suitable for solidification.

[0008] The fourth technical solution is based on the third technical solution, wherein the sealing material is suitable for being injected into the sealing cavity along the second direction through the first injection port; the sealing cavity is provided with vertical sections extending along the second direction on both sides along the third direction; the number of the first injection ports is two and corresponds to the vertical sections, and the first injection port is close to the corresponding vertical section along the third direction or at least partially overlaps with the corresponding vertical section; the first direction, the second direction and the third direction are perpendicular to each other.

[0009] The fifth technical solution is based on the third technical solution, wherein the shell is provided with a first wall, the first opening is formed on the first wall, the first wall is provided with a first outer wall facing away from the cavity, a first groove is formed between the first cover and the first outer wall, and the first groove is suitable for injecting sealing material.

[0010] The sixth technical solution is based on the third technical solution, wherein the sealing material is suitable for being injected into the sealing cavity through the first injection port along a second direction perpendicular to the first direction; the shell is provided with a first wall, the first opening is formed on the first wall, the first wall is provided with a first outer wall facing away from the cavity, a first groove is formed between the first cover and the first outer wall, the first groove is provided with a first notch, and the sealing material is suitable for being injected into the first groove from the first notch away from the second direction; both ends of the first groove extend to both sides of the first cover along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0011] The seventh technical solution is based on the sixth technical solution, wherein both ends of the first groove are provided with stop surfaces on both sides of the first cover along the third direction, and the sealing cavity at least partially passes over the position of the stop surfaces along the second direction.

[0012] The eighth technical solution is the sixth technical solution, wherein the first cover is inserted into the first wall along the second direction, and the first wall is provided with a first side wall for forming the first opening; the first cover is provided with a main body, a first flange and a second flange, the first flange and the second flange both protrude from the outer edge of the main body and are arranged along the first direction, and a slot that is plugged into and matched with the first wall is formed between the first flange and the second flange, and the slot is provided with a slot bottom wall, a first side slot wall formed on the first flange, and a second side slot wall formed on the second flange; the first slot is formed between the first side slot wall and the first outer wall, and the slot bottom wall, the second side slot wall and the first side wall enclose the sealed cavity.

[0013] The ninth technical solution is based on the third or fourth technical solution, and also includes a second cover, the shell is provided with a second opening along the second direction, the second cover is fixed to the shell and covers the second opening, a second groove is formed between the second cover and the shell and the first cover, the second groove is suitable for injecting sealing material and is connected with the first injection port.

[0014] The tenth technical solution is based on any one of the fifth to eighth technical solutions, and further includes a second cover, wherein the shell is provided with a second opening along the second direction, the second cover is fixed to the shell and covers the second opening, a second groove is formed between the second cover and the shell and the first cover, and the second groove is suitable for injecting sealing material and is connected to the first injection port.

[0015] The eleventh technical solution relates to a relay, which includes a relay body, a signal terminal, a first seal and a housing as described in the first or second technical solution, the relay body includes a coil assembly, the housing accommodates the relay body, the signal terminal is electrically connected to the coil assembly and passes through the first cover and extends out of the housing, the first seal is accommodated in the sealing cavity, and the first seal is a formed solid seal or is formed by solidifying the sealing material injected into the sealing cavity.

[0016] The twelfth technical solution relates to a relay, which includes a first seal and a housing as described in the ninth technical solution, wherein the first seal is accommodated in a sealing cavity and a second groove, and the first seal is formed by solidifying a sealing material injected into the sealing cavity and the second groove.

[0017] The thirteenth technical solution relates to a relay, which includes a first seal, a second seal and a housing as described in the tenth technical solution, wherein the first seal is accommodated in a sealing cavity and a second groove, and is formed by solidifying the sealing material injected into the sealing cavity and the second groove, and the second seal is accommodated in the first groove, and is formed by solidifying the sealing material injected into the first groove.

[0018] The fourteenth technical solution is based on the twelfth or thirteenth technical solution, and it also includes a relay body, a signal terminal and a load terminal; the relay body is accommodated in the cavity and includes a magnetic circuit part and a contact part, and the magnetic circuit part includes a coil assembly; the signal terminal is electrically connected to the coil assembly and passes through the first cover and extends out of the shell; the load terminal is electrically connected to the contact part, and the load terminal is fixed relative to the shell and extends out of the shell; the second cover and the shell cooperate to form a through hole along the second direction, and the second groove is arranged around and adjacent to the through hole, and the load terminal is provided with a first arm and a second arm connected to each other as a whole, the first arm passes through the through hole and extends out of the shell, and the second arm covers part of the second groove, and the second arm is provided with a second injection port, and the second injection port is suitable for injecting sealing material into the part of the second groove covered by the second arm along the second direction.

[0019] Compared with the prior art, the above solution has the following beneficial effects:

[0020] In the first technical solution, the first cover cooperates with the shell to form a sealing cavity suitable for accommodating at least part of the first sealing member, thereby providing a material basis for achieving a better waterproof effect in the matching gap between the parts of the shell. The first sealing member here can be a solid elastic sealing member that has been formed and installed in the sealing cavity, or a solid elastic sealing member that is formed by injecting a liquid sealing material into the sealing cavity and solidifying it.

[0021] In the first technical solution, since the first cover shields the sealed cavity along the first direction, the sealed cavity is not visible along the first direction in which the first opening is opened. Therefore, the first seal that the sealed cavity is suitable for accommodating is also not visible along the direction in which the first opening is opened. Therefore, when the user uses other functions attached to the first cover, it is not easy to scratch the first seal, thereby providing a material basis for the seal to be less likely to fail due to damage. In addition, when the first cover is located in the front and needs to be exposed to light for a long time, since the first seal is not visible in the direction in which the first opening is opened, the first seal is not easy to change color due to light, affecting the appearance.

[0022] In the second technical solution, the first cover is plugged into the first wall, so that the first cover can be more efficiently assembled to the shell.

[0023] In the third technical solution, the seal is formed by injecting the sealing material into the sealing cavity from the first injection port. Compared with the optional method of accommodating a solid sealing member in the sealing cavity to achieve the seal, the sealing cavity has a better filling effect and a better sealing effect.

[0024] In the fourth technical solution, the first injection port is close to the vertical section of the corresponding sealing cavity along the third direction or at least partially overlaps with the corresponding vertical section along the third direction, so that the sealing material is easier to inject into the sealing cavity, which is beneficial to provide a material basis for achieving a better sealing effect between the first cover and the shell.

[0025] In the fifth technical solution, a first groove suitable for injecting a sealing material is formed between the first cover and the first outer wall, which provides a material basis for further improving the waterproof effect between the first cover and the housing. At the same time, since the first groove is located between the first cover and the first outer wall, the first groove is not exposed to the housing along the first direction, thus providing a material basis for the seal not to be easily damaged and thus fail.

[0026] In the sixth technical solution, the sealing material is suitable for being injected into the sealing cavity along the second direction, and the sealing material is also suitable for being injected into the first groove away from the second direction, and both ends of the first groove extend to both sides of the first cover along the third direction. By injecting the sealing material twice and in reverse, the risk of sealing failure can be effectively reduced, providing a material basis for further improving the waterproof effect between the shell and the first cover.

[0027] In the seventh technical solution, by setting the stop surface, the sealing material cast on both sides of the first cover will not continue to be cast below the two sides of the first cover, so as to avoid the sealing material cast below the two sides of the first cover affecting the appearance. The sealing cavity at least partially passes the position of the stop surface along the second direction, which can ensure that the sealing cavity intersects with the first groove in the second direction, thereby providing a material basis for further ensuring the sealing effect.

[0028] In the eighth technical solution, the first cover is plugged into the first wall along the second direction, so that the first cover can be more efficiently attached to the shell. In addition, the first cover and the first wall are plugged together, so that the gap between the two can be more tortuous in the cross section perpendicular to the plugging direction, which helps to improve the sealing effect. The bottom wall of the slot, the second side slot wall and the first side wall of the first wall are combined to form a sealed cavity, so the sealed cavity is located at a position farther back than the first flange of the slot and is completely shielded along the first direction. The first slot is formed between the first side slot wall and the first outer wall, so that the first slot and the sealed cavity are arranged front and back along the first direction, providing a material basis for achieving a better waterproof effect between the first cover and the shell.

[0029] In addition to the technical effects of the technical solutions cited therein, the ninth and tenth technical solutions make it easier to insert and fix the relay body into the housing by providing the second opening and the second cover. The second groove for sealing the second cover and the housing is connected to the sealing cavity, so that the sealing material injected into the second groove and the sealing material injected into the sealing cavity are connected to each other, thereby achieving a better sealing effect on the housing.

[0030] The relays in the eleventh to fourteenth technical solutions further have a correspondingly better waterproof effect based on the technical effects of the claims cited therein.

[0031] In the fourteenth technical solution, the second groove is arranged around the through hole formed by the shell and the second cover and is adjacent to the through hole, and the load terminal extends out of the shell from the through hole, so that the shell, the second cover and the load terminal can be effectively sealed around the load terminal. When the second arm of the load terminal covers the part of the second groove, by providing the second injection port on the second arm, the sealing material is more easily cast to the covered part of the second groove, thereby ensuring the sealing effect of the second groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solution of the embodiment, the following briefly introduces the drawings required for use:

[0033] Figure 1 is a three-dimensional diagram of the relay in the first embodiment;

[0034] Figure 2 is a three-dimensional cross-sectional view of the relay in the first embodiment;

[0035] Figure 3is a three-dimensional diagram of the housing in the first embodiment;

[0036] Figure 4 is a top view of the housing in the first embodiment;

[0037] Figure 5 is a three-dimensional diagram of the first cover in the first embodiment;

[0038] Figure 6 is a bottom view of the first cover in the first embodiment;

[0039] Figure 7 is a three-dimensional diagram of the second cover in the first embodiment;

[0040] Figure 8 is a three-dimensional diagram of the load terminal in the first embodiment;

[0041] Fig. 9 is a top view of the relay before the housing is sealed in the first embodiment;

[0042] Fig.10 It is a front view of the relay before the housing is sealed in the first embodiment;

[0043] Fig.11 for Fig. 9 AA section view;

[0044] Fig.12 for Fig.11 A partial enlarged view of the D part;

[0045] Fig.13 for Fig. 9 BB section view;

[0046] Fig.14 for Fig.10 CC section view;

[0047] Fig.15 for Fig.14 A partial enlarged view of part E;

[0048] Fig.16 It is a front view of the relay in the second embodiment;

[0049] Fig.17 for Fig.16 FF section view;

[0050] Fig.18 for Fig.16 GG section view.

[0051] Description of main reference numerals:

[0052] 1. Relay; 2. Sealing container; 3. Relay body; 4. Load terminal; 5. Signal terminal; 6. Housing; 7. First sealing member; 8. Second sealing member; 9. Housing; 10. First cover; 11. Second cover; 12. First wall; 13. First opening; 14. Second opening; 15. First chamfer; 16. Support surface; 17. Retaining wall; 18. Body; 19. First flange; 20. Second flange; 21. Slot; 22. Slot bottom wall ; 23. second chamfer; 24. blocking surface; 25. stop surface; 26. cover body; 27. protrusion; 28. edge; 29. ​​first injection port; 30. first arm; 31. second arm; 32. second injection port; 33. sealing cavity; 34. vertical section; 35. horizontal section; 36. first groove; 37. first notch; 38. via; 39. third sealing member; 40. solid sealing member; X, third direction; Y, first direction; Z, second direction. DETAILED DESCRIPTION

[0053] 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.

[0054] 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.

[0055] 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.

[0056] In the claims and the description, unless otherwise defined, the terms "includes", "has" and their variations mean "including but not limited to".

[0057] 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.

[0058] In the claims and the specification, unless otherwise defined, the term "the sealing cavity is suitable for accommodating the first sealing component" means that the sealing cavity is capable of completely accommodating the first sealing component, wherein the first sealing component is a formed solid elastic seal or a solid elastic seal formed by injecting a fluid and solidifying sealing material into the sealing cavity and then solidifying.

[0059] In the claims and description, unless otherwise defined, the term "the portion of the sealing cavity suitable for accommodating the first sealing member" refers to the portion of the sealing cavity that can accommodate the first sealing member. The first sealing member here specifically refers to a solid elastic sealing member formed by injecting a sealing material that is fluid and suitable for solidification into the sealing cavity and then solidifying.

[0060] In the claims and description, unless otherwise defined, the term "the first cover shields the sealing cavity along the first direction" means that after the first cover is fixed to the shell, the gap (including the sealing cavity) formed by the first cover and the shell is not visible along the first direction.

[0061] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings.

[0062] Embodiment 1

[0063] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 FIG. 1 shows a relay 1 in this embodiment. Figure 1 and Figure 2 As shown, the relay 1 includes a sealed container 2, a relay body 3, a load terminal 4 and a signal terminal 5. In this embodiment, the sealed container 2 includes a housing 6, a first sealing member 7 and a second sealing member 8. In this embodiment, the housing 6 includes a shell 9, a first cover 10 and a second cover 11.

[0064] See also Figure 3 and Figure 4 , Figure 3 and Figure 4 The housing 9 in this embodiment is shown. Figure 3 As shown, in this embodiment, the shell 9 is provided with a cavity, and the cavity is surrounded by a bottom wall and a plurality of side walls, one of which is a first wall 12, and the first wall 12 is perpendicular to the first direction Y, and the first direction Y is the front-to-back direction. A first opening 13 is provided on the first wall 12 along the first direction Y. The first wall 12 is provided with a first side wall for forming the first opening 13 and a first outer wall facing away from the cavity. The shell 9 is also provided with a second opening 14 along the second direction Z, and the second opening 14 is located at the upper part of the shell 9. In this embodiment, the first opening 13 is connected with the second opening 14. As shown in FIG. Figure 2 As shown, the first side wall is provided with a first chamfer 15, and the first chamfer 15 is located at the rear half of the first side wall. Figure 2 and Figure 3 As shown, each side wall of the shell 9 is provided with a support surface 16, and a retaining wall 17 is formed outside the support surface 16. The upper surface of the retaining wall 17 is higher than the support surface 16, and the support surface 16 and the retaining wall 17 are both formed on the side wall.

[0065] See also Figure 5 and Figure 6 , Figure 5 and Figure 6 The first cover 10 in the embodiment is shown. Figure 2 As shown, the first cover 10 is used to mount the signal terminal 5 and is used to be fixedly connected to the housing 9 to cover the first opening 13. Figure 5 As shown, in this embodiment, the first cover 10 includes a main body 18, a first flange 19, and a second flange 20. The first flange 19 and the second flange 20 both protrude from the outer edge of the main body 18 to both sides along a third direction X and protrude downward along a second direction Z, the third direction X is a left-right direction, and the second direction Z is a top-down direction. The first flange 19 and the second flange 20 are arranged along a first direction Y, with the first flange 19 in front and the second flange 20 in the back. A slot 21 is formed between the first flange 19 and the second flange 20, and the slot 21 is provided with a slot bottom wall 22 formed on the outer edge surface of the main body 18, a first side slot wall formed on the first flange 19, and a second side slot wall formed on the second flange 20. As shown Figure 6 As shown, in this embodiment, the first side groove wall is provided with a second chamfer 23, the lower section of the second chamfer 23 extends along the third direction X, and the second chamfer 23 also extends upward away from the second direction Z to both sides of the first flange 19 to form side sections. In this embodiment, a blocking surface 24 is provided between the lower section and the side section of the second chamfer 23, and the blocking surfaces 24 on both sides are arranged opposite to each other, and the blocking surfaces 24 are perpendicular to the third direction X. In this embodiment, a stop surface 25 is provided at the stop end of the side section of the second chamfer 23, and the direction of the stop surface 25 is away from the second direction Z.

[0066] See also Figure 7 , Figure 7 The second cover 11 in this embodiment is shown. Figure 7 As shown, the second cover 11 is used to be fixedly connected to the housing 9 and cover the second opening 14. Figure 7 As shown, the second cover 11 is provided with a cover body 26, a protrusion 27 is formed in the center of the cover body 26, and an edge 28 is formed outside the protrusion 27, and the edge 28 is a part of the cover body 26 and surrounds the protrusion 27. In this embodiment, at least one side of the cover body 26 is further provided with a notch, and the notch is used to form a through hole 38. In this embodiment, the edge 28 of the front side (close to the first cover 10) of the second cover 11 along the first direction Y is further provided with two first injection ports 29, and the two first injection ports 29 are arranged along the third direction X.

[0067] like Figure 2As shown, the relay body 3 is used to realize the relay function. In this embodiment, the relay body 3 includes a magnetic circuit part and a contact part. The magnetic circuit part includes a coil assembly and an armature assembly, and the contact part includes a moving contact and a static contact. The coil assembly receives a control signal and changes the magnetic field based on the control signal to drive the armature assembly to drive the moving contact to move to close or disconnect with the static contact. In this embodiment, the relay body 3 is placed in the cavity of the housing 9 through the second opening 14. Among them, the coil assembly 6 and the static contact are fixed to the housing 9, and the armature assembly and the moving contact move relative to the housing 9.

[0068] See also Figure 8 , Figure 8 FIG. 4 shows a load terminal 4 in this embodiment, which is suitable for being electrically connected to the contact portion. Figure 8 As shown, the load terminal 4 is provided with a first arm 30 and a second arm 31 connected to each other, the first arm 30 extends away from the second direction Z, and the second arm 31 extends along the first direction Y. The second arm 31 is provided with a second injection port 32, the specific function of which will be described later.

[0069] like Figure 2 As shown, the signal terminal 5 is suitable for being electrically connected to the coil assembly for receiving a control signal. In this embodiment, the signal terminal 5 is mounted on the first cover 10, and penetrates the first cover 10 along the first direction Y and extends out of the front surface of the first cover 10. Specifically, in this embodiment, the first connection terminal 5 is interference-fitted with the first cover 10. In other embodiments, the first connection terminal 5 can also be integrally formed with the first cover 10 by insert injection molding, or sealed with the first cover 10 by other sealing members.

[0070] See also Figures 9 to 15 , Figures 9 to 15 FIG. 2 shows the state of the relay 1 in this embodiment when it is not sealed. Fig. 9 As shown, in this embodiment, the relay body 3 is first placed in the cavity of the housing 9, and the load terminal 4 is electrically connected to the contact portion and fixed relative to the housing 9. Then the first cover 10 is plugged into the first wall 12 along the second direction Z. When the first cover 10 is plugged into the first wall 12, the load terminal 5 is also plugged into the coil assembly and an electrical connection is established. Fig.12 As shown, in this embodiment, the slot 21 is plugged into the first wall 12, the first flange 19 is located at the front side of the first wall 12 along the first direction Y, and the second flange 20 is located at the rear side of the first wall 12 along the first direction Y. After being plugged into place, the slot bottom wall 22, the second side slot wall and the first side wall of the slot 21 are enclosed to form a sealed cavity 33. Fig.14 and Fig.15 As shown, the sealing cavity 33 has two vertical sections 34. Both vertical sections 34 are formed at the location where the first chamfer 15 is located. Fig.12As shown, the sealed cavity 33 also has a horizontal section 35, and the horizontal section 35 is away from the second opening 14 along the second direction Z. The horizontal section 35 is also formed at the location where the first chamfer 15 is located. The horizontal section 35 is connected to the two vertical sections 34. Fig.12 and Fig.15 As shown, a first groove 36 is formed between the first flange 19 and the first outer wall. Specifically, the first groove 36 is formed by the second chamfer 23 and the outer surface of the first wall 12. The first groove 36 has a lower section and a side end that are connected to each other, just like the second chamfer 23. The lower section of the first groove 36 is provided with a first notch 37. The first notch 37 is oriented in the same direction as the second direction Z, and is suitable for injecting the sealing material into the first groove 36 away from the second direction Z. Finally, the second cover 11 is placed on the housing 9 so that the second cover 11 is supported by the support surface 16. At this time, as shown in FIG. Fig.11 As shown, a second groove 39 is formed between the protrusion 23, the edge 28 and the retaining wall 17, and the second groove 39 is connected to the two first injection ports 29. The second groove 39 is suitable for injecting the sealing material along the second direction Z. Fig. 9 As shown, the two first injection ports 29 are respectively close to the corresponding vertical segments 34 along the third direction X or at least partially overlap with the corresponding vertical segments 34. In this embodiment, the first injection ports 29 partially overlap with the corresponding vertical segments 34. The first injection ports 29 are suitable for injecting the sealing material into the vertical segments 34 along the second direction Z. Fig.13 As shown, a through hole 38 is formed between the notch on the second cover 11 and the first cover 10, and the second groove 39 surrounds the through hole 38 and is adjacent to the through hole 38. The first arm 30 of the second connecting terminal 4 deviates from the second direction Z and passes through the through hole 38 and extends out of the housing 6, the second arm 31 covers a portion of the second groove 39, and the second injection port 32 on the second arm 31 faces the covered portion of the second groove 39.

[0071] In this embodiment, the operation of the sealed housing 6 is performed as follows:

[0072] Step 1: inject the sealing material from the first injection port 29 into the vertical section 34 of the sealing cavity 33 along the second direction Z, and then inject the sealing material into the second groove 39 along the second direction Z, wherein the portion of the second groove 39 covered by the second arm 31 is injected from the second injection port 32, and the sealing material injected into the sealing cavity 33 and the sealing material injected into the second groove 39 are solidified to form the first sealing member 7;

[0073] Step 2, inverting the intermediate obtained from the previous step; and

[0074] Step three: inject the sealing material from the first notch 37 into the first groove 36 in the direction away from the second direction Z until the sealing material flows to the stop surface 25 , and solidify the sealing material injected into the first groove 36 to form the second sealing member 8 .

[0075] In step three, when the sealing material is cast from the lower section of the first groove 36 to the side section, it is blocked by the blocking surface 24 and only a portion of the sealing material is cast to the stop surface 25, thereby ensuring the sealing of the lower section of the first groove 36.

[0076] In some other embodiments, especially when the second opening 14 and the second cover 11 are not provided, the order of step 1 and step 3 can be interchanged. That is, the order of the steps can be step 1 before step 2 and step 2 before step 3, or step 3 before step 2 and step 2 before step 1.

[0077] The sealing material has fluidity and is suitable for solidification. In this embodiment, the sealing material is polyethylene resin.

[0078] After the above three steps, the work of the sealing shell 6 is completed and the sealing shell 6 is formed as shown in FIG. Figure 1 and Figure 2 Relay 1 shown.

[0079] In this embodiment, the first cover 10 cooperates with the shell 9 to form a sealing cavity 33 suitable for accommodating at least part of the first sealing member 7, thereby providing a material basis for achieving a better waterproof effect by coordinating and spacing between various parts of the shell 6.

[0080] In this embodiment, since the first cover 10 shields the sealing cavity 33 along the first direction Y, the sealing cavity 33 is not visible along the first direction in which the first opening 13 is opened. Therefore, the first sealing member 7 that the sealing cavity 33 is suitable for accommodating is also not visible along the direction in which the first opening 13 is opened. Therefore, when the user uses other functions attached to the first cover 10, it is not easy to scratch the first sealing member 7, thereby providing a material basis for the seal not to fail due to damage. In addition, when the first cover 10 is located in the front and needs to be exposed to light for a long time, since the first sealing member 7 is not visible in the direction in which the first opening 13 is opened, the first sealing member 7 is not easy to change color due to light, affecting the appearance.

[0081] In this embodiment, the first cover 10 is plugged into the first wall 12 , so that the first cover 10 can be more efficiently assembled to the housing 9 .

[0082] In this embodiment, the seal is formed by injecting the sealing material into the sealing cavity 33 from the first injection port 29. Compared with the optional method of accommodating a solid seal in the sealing cavity 33 to achieve sealing, the sealing cavity 33 has a better filling effect and a better sealing effect.

[0083] In this embodiment, the first injection port 29 is close to the vertical section 34 of the corresponding sealing cavity 33 along the third direction X or at least partially overlaps with the corresponding vertical section 34 along the third direction X, so that the sealing material is easier to be injected into the sealing cavity 33, which is beneficial to provide a material basis for achieving a better sealing effect between the first cover 10 and the shell 9.

[0084] In this embodiment, a first groove 36 suitable for injecting a sealing material is formed between the first cover 10 and the first outer wall, which provides a material basis for further improving the waterproof effect between the first cover 10 and the housing 9. At the same time, since the first groove 36 is located between the first cover 10 and the first outer wall, the first groove 36 is not exposed to the housing 6 along the first direction Y, thereby providing a material basis for the seal to be not easily damaged and thus fail.

[0085] In this embodiment, the sealing material is suitable for being injected into the sealing cavity along the second direction Z, and the sealing material is also suitable for being injected into the first groove 36 away from the second direction Z, and both ends of the first groove 36 extend to both sides of the first cover 10 along the third direction X. By injecting the sealing material twice and in reverse, the risk of sealing failure can be effectively reduced, providing a material basis for further improving the waterproof effect between the shell 9 and the first cover 10.

[0086] In this embodiment, by providing the stop surface 25, the sealing material cast on both sides of the first cover 10 will not continue to be cast below the two sides of the first cover 10, so as to avoid the sealing material cast below the two sides of the first cover 10 affecting the appearance. The sealing cavity 33 at least partially passes the position of the stop surface 25 along the second direction Z, which can ensure that the sealing cavity 33 intersects with the first groove 36 in the second direction Z, thereby providing a material basis for further ensuring the sealing effect.

[0087] In this embodiment, the first cover 10 is plugged into the first wall 12, which can make the gap between the two more tortuous in the cross section perpendicular to the plugging direction, which helps to improve the sealing effect. The bottom wall 22 of the slot 21, the second side slot wall and the first side wall of the first wall enclose a sealed cavity 33, so the sealed cavity 33 is located at a relatively rearward position of the slot 21 away from the first flange 19 and is completely shielded along the first direction Y. The first groove 36 is formed between the first side slot wall and the first outer wall, so that the first groove 36 and the sealed cavity 33 are arranged front and back along the first direction Y, providing a material basis for achieving a better waterproof effect between the first cover 10 and the housing 9.

[0088] In this embodiment, by providing the second opening 14 and the second cover 11, it is easier to insert and fix the relay body 3 into the housing 9. The second groove 39 for sealing the second cover 11 and the housing 9 is connected to the sealing cavity 33, so that the sealing material injected into the second groove 39 and the sealing material injected into the sealing cavity 33 are connected to each other, achieving a better sealing effect on the housing 6.

[0089] In this embodiment, by accommodating the first sealing member 7 in the sealing cavity 33 and the second groove 39 , and accommodating the second sealing member 8 in the first groove 36 , a better sealing and waterproofing effect than the prior art is achieved.

[0090] In this embodiment, the second groove 39 is arranged around the through hole 38 formed by the housing 9 and the second cover 11 and is adjacent to the through hole 38, and the load terminal 4 extends out of the housing 6 from the through hole 38, so that the housing 9, the second cover 11 and the load terminal 4 can be effectively sealed around the load terminal 4. When the second arm 31 of the load terminal 4 covers the part of the second groove 39, by providing the second injection port 32 on the second arm 31, the sealing material can be more easily cast to the covered part of the second groove 39, thereby ensuring the sealing effect of the second groove 39.

[0091] In this embodiment, the intermediate body obtained in the previous step is turned over by step 2 to ensure that after the sealing material injected into the sealing cavity 33 along the second direction Z solidifies, the sealing material can be injected into the first groove 36 away from the second direction Z and cast to the stop surface 25, or the two are reversed. Therefore, when the air column is formed in the sealing cavity 33, the sealing material can be injected in the reverse direction to strengthen the sealing of the gap between the first cover 10 and the housing 9.

[0092] Embodiment 2

[0093] See also Figures 16 to 18 , Figures 16 to 18 The device 1 in this embodiment is shown. Figures 16 to 18As shown, the relay 1 includes a sealing container, a relay body 3, a load terminal 4 and a signal terminal 5. The sealing container includes a housing 6, a third sealing member 39 and a solid sealing member 40. The housing 6 includes a shell 9, a first cover 10 and a second cover 11. The shell 9 is provided with a first opening 13 along a first direction Y, and the shell 9 is provided with a second opening 14 along a second direction Z. In this embodiment, the first opening 13 and the second opening 14 are not connected. The first cover 10 is suitable for installing the signal terminal 5, and is plugged with the shell 9 along the first direction Y to cover the first opening 13. The outer periphery of the first cover 10 is provided with a sealing groove, and the sealing groove is used to accommodate the solid sealing member 42. When the first cover 10 is plugged with the shell 9, the sealing groove of the first cover 10 cooperates with the shell 9 to form a sealed cavity. The solid sealing member 42 is accommodated in the sealed cavity and is tightly pressed against the shell 9 and the first cover 10 to achieve sealing between the shell 9 and the first cover 10. In this embodiment, the first cover 10 has a first flange, and the first flange shields the first opening 13, so that the solid seal 42 is not visible along the first direction Y. In this embodiment, the signal terminal 5 is electrically connected to the coil assembly of the relay body 3, the signal terminal 5 passes through the first cover 10 and is insert-molded with the first cover 10, and the load terminal 4 is electrically connected to the contact portion of the relay body 3, and the load terminal 4 passes through the second cover 11 and is interference-fitted with the second cover 11. In this embodiment, after the relay body 3 is placed in the housing 9, the first cover 10 is plugged into the housing 9 along the first direction Y and shields the first opening 13, the signal terminal 5 and the coil assembly are electrically connected at the same time, the second cover 11 is covered on the housing 9 and covers the second opening 14, and the load terminal 4 is electrically connected to the contact portion at the same time. A second groove is also formed between the second cover 11 and the housing 9, and the second groove is suitable for injecting sealing material along the second direction Z. The sealing material injected into the second groove solidifies to form a third seal 39.

[0094] In this embodiment, the solid seal 42 is accommodated in the sealing cavity 33, and the sealing cavity 33 is not visible along the first direction Y due to the shielding of the first flange, so the solid seal 42 is not easily damaged by scratches and thus fails.

[0095] 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 housing, characterized in that: It includes a shell and a first cover, the shell is provided with a cavity and a first opening connected with the cavity and opened along a first direction, the first cover is fixedly connected to the shell and cooperates with the shell to form a sealed cavity, the sealed cavity is suitable for accommodating a first seal or part of the first seal, and the first cover shields the sealed cavity along the first direction.

2. A housing as claimed in claim 1, characterized in that: The housing is provided with a first wall, the first opening is formed in the first wall, and the first cover is plugged into the first wall.

3. A housing as claimed in claim 1, characterized in that: The housing is provided with a first injection port, and the sealing material is suitable for being injected into the sealing cavity through the first injection port. The sealing material has fluidity and is suitable for solidification.

4. A housing as claimed in claim 3, characterized in that: The sealing material is suitable for being injected into the sealing cavity along the second direction through the first injection port; the sealing cavity is provided with vertical sections extending along the second direction on both sides along the third direction; the number of the first injection ports is two and corresponds to the vertical sections, and the first injection ports are close to the corresponding vertical sections along the third direction or at least partially overlap with the corresponding vertical sections; the first direction, the second direction and the third direction are perpendicular to each other.

5. A housing as claimed in claim 3, characterized in that: The shell is provided with a first wall, the first opening is formed in the first wall, the first wall is provided with a first outer wall facing away from the cavity, a first groove is formed between the first cover and the first outer wall, and the first groove is suitable for injecting sealing material.

6. A housing as claimed in claim 3, characterized in that: The sealing material is suitable for being injected into the sealing cavity through the first injection port along a second direction perpendicular to the first direction; the shell is provided with a first wall, the first opening is formed on the first wall, the first wall is provided with a first outer wall facing away from the cavity, a first groove is formed between the first cover and the first outer wall, the first groove is provided with a first notch, and the sealing material is suitable for being injected into the first groove from the first notch away from the second direction; the two ends of the first groove extend to the two sides of the first cover along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

7. A housing as claimed in claim 6, characterized in that: Both ends of the first groove are provided with stop surfaces on both sides of the first cover along the third direction, and the sealing cavity at least partially passes over the position of the stop surfaces along the second direction.

8. A housing as claimed in claim 6, characterized in that: The first cover is inserted into the first wall along the second direction, and the first wall is provided with a first side wall for forming the first opening; the first cover is provided with a main body, a first flange and a second flange, the first flange and the second flange both protrude from the outer edge of the main body and are arranged along the first direction, and a slot that is plugged into and matched with the first wall is formed between the first flange and the second flange, and the slot is provided with a slot bottom wall, a first side slot wall formed on the first flange, and a second side slot wall formed on the second flange; the first slot is formed between the first side slot wall and the first outer wall, and the slot bottom wall, the second side slot wall and the first side wall enclose the sealed cavity.

9. A housing as claimed in claim 3 or 4, characterized in that: It also includes a second cover, the shell is provided with a second opening along the second direction, the second cover is fixed to the shell and covers the second opening, a second groove is formed between the second cover, the shell and the first cover, the second groove is suitable for injecting sealing material and is connected with the first injection port.

10. A housing according to any one of claims 5 to 8, characterized in that: It also includes a second cover, the shell is provided with a second opening along the second direction, the second cover is fixed to the shell and covers the second opening, a second groove is formed between the second cover, the shell and the first cover, and the second groove is suitable for injecting the sealing material and is connected with the first injection port.

11. A relay, characterized in that: It includes a relay body, a signal terminal, a first seal and a housing as described in claim 1 or 2, wherein the relay body includes a coil assembly, the housing accommodates the relay body, the signal terminal is electrically connected to the coil assembly and passes through the first cover and extends out of the housing, the first seal is accommodated in the sealing cavity, and the first seal is a formed solid seal or is formed by solidifying the sealing material injected into the sealing cavity.

12. A relay, characterized in that: It comprises a first sealing member and a housing as claimed in claim 9, wherein the first sealing member is accommodated in a sealing cavity and a second groove, and the first sealing member is formed by solidifying sealing materials injected into the sealing cavity and the second groove.

13. A relay, characterized in that: It includes a first seal, a second seal and a shell as described in claim 10, wherein the first seal is accommodated in a sealing cavity and a second groove, and is formed by solidifying the sealing material injected into the sealing cavity and the second groove, and the second seal is accommodated in the first groove, and is formed by solidifying the sealing material injected into the first groove.

14. A relay as claimed in claim 12 or 13, characterized in that: It also includes a relay body, a signal terminal and a load terminal; the relay body is accommodated in a cavity and includes a magnetic circuit part and a contact part, the magnetic circuit part includes a coil assembly; the signal terminal is electrically connected to the coil assembly and passes through the first cover and extends out of the shell; the load terminal is electrically connected to the contact part, the load terminal is fixed relative to the shell and extends out of the shell; the second cover and the shell cooperate to form a through hole along the second direction, the second groove is arranged around and adjacent to the through hole, the load terminal is provided with a first arm and a second arm connected to each other as a whole, the first arm passes through the through hole and extends out of the shell, the second arm covers part of the second groove, the second arm is provided with a second injection port, and the second injection port is suitable for injecting sealing material into the part of the second groove covered by the second arm along the second direction.

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