Housing and relay

Abstract

The present disclosure relates to a housing and a relay. The housing comprises a first housing and a second housing. The first housing comprises an inner cavity having an opening, and the inner cavity can be used for accommodating a relay body; the second housing is connected to the first housing so as to enclose the relay body within the inner cavity; and the second housing has an engagement slot, and at least part of the edge of the opening of the first housing is inserted into the engagement slot.

Description

Housing and relay

[0001] The present disclosure claims priority to Chinese Patent Application No. 202421685086.1, filed on July 16, 2024, the entire contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of electronic control devices, and in particular, to a housing and a relay. BACKGROUND

[0003] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is usually applied in an automatic control circuit. The relay is actually a kind of "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic regulation, safety protection, and conversion of circuits.

[0004] The relay includes a relay body, a first shell, and a second shell. The first shell and the second shell are connected and form a chamber for accommodating the relay body. However, when the relay in the related art is subjected to a large impact, the first shell and the second shell are prone to disengagement.

[0005] SUMMARY

[0006] The present disclosure provides a housing to improve the problem that the first shell and the second shell are prone to disengagement in the related art.

[0007] The present disclosure provides a relay to improve the problem that the first shell and the second shell are prone to disengagement in the related art.

[0008] The housing of the present disclosure includes:

[0009] The first shell includes an inner cavity having an opening, and the inner cavity is used to accommodate the relay body; and

[0010] The second shell is connected with the first shell to enclose the relay body in the inner cavity, and the second shell has a clamping groove, and at least part of the opening edge of the first shell is inserted into the clamping groove.

[0011] According to some embodiments of the present disclosure, the shell wall of the first shell further has a notch, and the notch penetrates through the opening edge.

[0012] According to some embodiments of the present disclosure, the second shell has the clamping groove, and the portions of the first shell located on both sides of the notch are inserted into the clamping groove.

[0013] The second shell includes:

[0014] a second wall;

[0015] a second annular side wall, one end of which is connected to the second wall and the other end of which is connected to the first shell; and

[0016] a reinforcing portion connected to an inner wall surface of the second annular side wall, the reinforcing portion and the inner wall surface of the second annular side wall forming the clamping groove therebetween.

[0017] According to some embodiments of the present disclosure, the first shell comprises a first wall and a first annular side wall, one end of the first annular side wall being connected to the first wall and the other end of the first annular side wall surrounding the opening;

[0018] The notch is recessed from an edge of the first annular side wall away from the first wall to a direction close to the first wall.

[0019] According to some embodiments of the present disclosure, an outer wall surface of the first annular side wall is provided with a plurality of first protrusions, the plurality of first protrusions being arranged on both sides of the notch along a circumferential direction of the first annular side wall, and the second shell is in interference fit with the first protrusions.

[0020] According to some embodiments of the present disclosure, the shell further comprises:

[0021] a connector cover in plug-in fit with the first shell, the connector cover being used for mounting an external connector.

[0022] According to some embodiments of the present disclosure, the first shell and the second shell are connected in a mounting direction.

[0023] The external connector is connected with the connector cover in a plug-in direction, the plug-in direction being perpendicular to the mounting direction.

[0024] According to some embodiments of the present disclosure, the second shell is clamped with the first shell.

[0025] According to some embodiments of the present disclosure, one of the first shell and the second shell has a clamping hole, and the other has a clamping block for clamping into the clamping hole.

[0026] A relay according to an embodiment of the present disclosure comprises:

[0027] a relay body;

[0028] a first shell comprising an inner cavity with an opening, the relay body being loaded into the inner cavity through the opening; and

[0029] a second shell connected with the first shell to enclose the relay body in the inner cavity, the second shell having a clamping groove, at least part of the opening edge of the first shell being inserted into the clamping groove.

[0030] According to some embodiments of the present disclosure, the shell wall of the first shell further has a notch, and the notch penetrates through the opening edge.

[0031] According to some embodiments of the present disclosure, the second shell has the clamping slot, and the portions of the first shell on both sides of the notch are inserted into the clamping slot.

[0032] According to some embodiments of the present disclosure, the second shell comprises:

[0033] a second wall;

[0034] a second annular side wall, one end of which is connected to the second wall, and the other end of which is connected to the first shell; and

[0035] a reinforcing portion connected to an inner wall surface of the second annular side wall, and the reinforcing portion and the inner wall surface of the second annular side wall form the clamping slot.

[0036] According to some embodiments of the present disclosure, the first shell comprises a first wall and a first annular side wall, one end of the first annular side wall is connected to the first wall, and the other end of the first annular side wall surrounds the opening;

[0037] The notch is recessed from an edge of the first annular side wall away from the first wall to a direction close to the first wall.

[0038] According to some embodiments of the present disclosure, an outer wall surface of the first annular side wall is provided with a plurality of first protrusions, and the plurality of first protrusions are arranged on both sides of the notch along the circumference of the first annular side wall, and the second shell is in interference fit with the first protrusions.

[0039] According to some embodiments of the present disclosure, the relay further comprises:

[0040] a connector assembly comprising a connector cover for mounting an external connector and a conductive member penetrating through the notch and electrically connecting the relay body and the external connector, and the connector cover is inserted into the first shell.

[0041] According to some embodiments of the present disclosure, the first shell and the second shell are connected along a mounting direction.

[0042] The external connector is connected with the connector cover along an insertion direction, and the insertion direction is perpendicular to the mounting direction.

[0043] According to some embodiments of the present disclosure, the relay body is in interference fit with the first shell.

[0044] According to some embodiments of the present disclosure, the second shell is clamped with the first shell.

[0045] According to some embodiments of the present disclosure, one of the first shell and the second shell has a card hole, and the other has a card block for being inserted into the card hole.

[0046] The above-mentioned one embodiment has at least the following advantages or benefits:

[0047] The relay of the present embodiment can avoid the deformation of the opening edge of the first shell, and thus avoid the loosening of the first shell and the second shell.

[0048] Further, the strength of the shell wall near the notch of the first shell is improved, and the shell wall near the notch of the first shell is prevented from being inwardly concave, thus affecting the assembly of the connector assembly and the housing.

[0049] Further, the deformation of the opening edge of the first shell is prevented by inserting the first annular side wall of the first shell into the card slot of the second shell, thus preventing the card block from being pulled out of the card hole, ensuring the firmness of the second shell and the first shell, and avoiding loosening. BRIEF DESCRIPTION OF DRAWINGS

[0050] FIG. 1 shows a perspective view of a relay according to an embodiment of the present disclosure.

[0051] FIG. 2 shows an exploded view of a relay according to an embodiment of the present disclosure, in which the second shell is omitted.

[0052] FIG. 3 shows a schematic view of a second shell according to an embodiment of the present disclosure.

[0053] FIG. 4 shows a partial view of a first shell according to an embodiment of the present disclosure from one perspective.

[0054] FIG. 5 shows a partial view of a first shell according to an embodiment of the present disclosure from another perspective.

[0055] FIG. 6 shows a schematic view of a connector cover according to an embodiment of the present disclosure.

[0056] FIG. 7 shows a side view of a first shell and a connector cover according to an embodiment of the present disclosure after being assembled.

[0057] FIG. 8 shows a cross-sectional view along the A-A cutting line in FIG. 7.

[0058] FIG. 9 shows a top view of a first shell according to an embodiment of the present disclosure.

[0059] FIG. 10 shows a side view of a relay according to an embodiment of the present disclosure.

[0060] FIG. 11 shows a cross-sectional view along the B-B cutting line in FIG. 10.

[0061] Wherein, the reference signs are explained as follows: 10, housing; 11, second shell; 111, second wall; 112, second annular side wall; 1121, clamping hole; 113, reinforcing part; 114, clamping groove; 12, first shell; 121, first wall; 122, first annular side wall; 1221, clamping block; 123, first protrusion; 124, inner cavity; 125, opening; 13, mounting part; 131, insertion slot; 132, stop wall; 1321, end face; 133, limiting protrusion; 134, first opening; 135, side stop wall; 136, accommodating space; 137, second protrusion; 14, notch; 15, mounting leg; 20, relay body; 21, contact part; 22, magnetic circuit part; 23, coil lead-out end; 24, auxiliary contact lead-out end; 30, connector assembly; 31, connector cover; 311, plug-in part; 3111, stop segment; 3112, extension segment; 312, cover body; 3121, accommodating groove; 3122, second opening; 313, extension part; 314, limiting part; 32, conductive member; 321, conductive strip; 33, fixing member. DETAILED DESCRIPTION

[0062] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, the example embodiments can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus description of the same will be simplified or omitted.

[0063] It is to be understood that the terms "including", "comprising", "having" and variations thereof herein are intended to cover the case where non-exclusive inclusion is meant, i.e. the process, method, system, product or device includes the listed steps or units, but can also include other steps or units not expressly listed or inherent to such process, method, product or device. It is to be understood that the terms "including", "comprising", "having" and variations thereof herein are intended to cover the case where non-exclusive inclusion is meant, i.e. the process, method, system, product or device includes the listed steps or units, but can also include other steps or units not expressly listed or inherent to such process, method, product or device.

[0064] As shown in FIG. 1 and FIG. 2, the present disclosure provides a housing, the housing 10 of the embodiment of the present disclosure includes a second shell 11 and a first shell 12.

[0065] The first shell 12 includes an inner cavity 124 with an opening 125, the inner cavity 124 can be used to accommodate a relay body 20. The second shell 11 is connected with the first shell 12 to enclose the relay body 20 in the inner cavity 124. The second shell 11 has a clamping groove 114, at least part of the edge of the opening 125 of the first shell 12 is inserted into the clamping groove 114.

[0066] It can be understood that the shell 10 of the present disclosure can be a shell for accommodating the relay body 20, or a shell for accommodating the relay body 20 and other electrical devices. Exemplarily, the shell 10 can be a shell of a battery pack.

[0067] As shown in FIGS. 2, 4 and 5, the shell wall of the first shell 12 further has a notch 14 recessed from the edge of the opening 125 away from the first wall 121 towards the first wall 121.

[0068] As shown in FIGS. 4 and 5, the outer wall surface of the first annular side wall 122 is provided with a plurality of first protrusions 123 arranged on both sides of the notch 14 along the circumference of the first annular side wall 122, and the second shell 11 is in interference fit with the first protrusions 123.

[0069] In the present disclosure, as shown in FIG. 2, the shell 10 further comprises a connector cover 31 in plug-in connection with the first shell 12, and the connector cover 31 is used for mounting an external connector.

[0070] In an embodiment, as shown in FIG. 1, the first shell 12 and the second shell 11 are connected along an installation direction D1. The external connector is connected with the connector cover 31 along a plug-in direction D2 perpendicular to the installation direction D1.

[0071] As shown in FIGS. 2, 3, 10 and 11, the second shell 11 has a clamping groove 114, and the portions of the first shell 12 on both sides of the notch 14 are inserted into the clamping groove 114.

[0072] As shown in FIG. 3, the second shell 11 comprises a second wall 111, a second annular side wall 112 and a reinforcing portion 113. One end of the second annular side wall 112 is connected with the second wall 111, and the other end is connected with the first shell 12. The reinforcing portion 113 is connected to the inner wall surface of the second annular side wall 112, and the clamping groove 114 is formed between the reinforcing portion 113 and the inner wall surface of the second annular side wall 112.

[0073] As shown in FIGS. 2 and 3, the second shell 11 can be clamped with the first shell 12. Specifically, one of the first shell 12 and the second shell 11 has a clamping hole 1121, and the other has a clamping block 1221 for clamping into the clamping hole 1121, so as to clamp the first shell 12 and the second shell 11.

[0074] As shown in FIG. 1 and FIG. 2, the present disclosure also provides a relay, the relay of the present disclosure includes a relay body 20, a housing 10 for receiving the relay body 20, and a connector assembly 30 for connecting with the relay body 20. Wherein, the connector assembly 30 is capable of connecting with an external connector (not shown in the figure).

[0075] The relay body 20 can include a contact portion 21 and a magnetic circuit portion 22. Wherein, the contact portion 21 has a contact assembly, and the magnetic circuit portion 22 is used to drive the contact assembly to close or open.

[0076] The housing 10 includes a second shell 11 and a first shell 12 made of insulating material, which can be plastic, but is not limited thereto. The second shell 11 and the first shell 12 are connected to form an inner cavity 124 for accommodating the relay body 20. The first shell 12 includes the inner cavity 124 with an opening 125. In assembly, the relay body 20 is first assembled into the inner cavity 124 of the first shell 12 through the opening 125, and then the second shell 11 is connected with the first shell 12 to enclose the relay body 20 in the inner cavity 124.

[0077] As an example, the relay body 20 is interference fit with the first shell 12, so as to improve the stability between the relay body 20 and the first shell 12, and prevent the relay body 20 from shaking relative to the housing 10.

[0078] In an embodiment, the first shell 12 surrounds the magnetic circuit portion 22 of the relay body 20, and the second shell 11 surrounds the contact portion 21 of the relay body 20, but is not limited thereto.

[0079] For example, in another embodiment, the first shell 12 surrounds the entire magnetic circuit portion 22 and the lower half of the contact portion 21, and the second shell 11 surrounds the upper half of the contact portion 21; in still another embodiment, the first shell 12 surrounds the lower half of the magnetic circuit portion 22, and the second shell 11 surrounds the entire contact portion 21 and the upper half of the magnetic circuit portion 22.

[0080] As shown in FIG. 1, the housing 10 also includes a mounting leg 15 for mounting the relay on an external device (not shown in the figure). The mounting leg 15 can be provided on the second shell 11 or the first shell 12. For example, the outer wall surface of the second shell 11 is provided with the mounting leg 15, but is not limited thereto.

[0081] As shown in FIG. 2, the first shell 12 includes a first annular side wall 122 and a first wall 121, one end of the first annular side wall 122 is connected with the first wall 121, and the other end of the first annular side wall 122 is connected with the second shell 11. Wherein, the other end of the first annular side wall 122 surrounds the opening 125.

[0082] As an example, the first annular sidewall 122 is in one-piece structure with the first wall 121.

[0083] As shown in FIG. 3, the second shell 11 includes a second annular sidewall 112 and a second wall 111, one end of the second annular sidewall 112 is connected with the second wall 111, and the other end of the second annular sidewall 112 is connected with the other end of the first annular sidewall 122. The mounting leg 15 can be arranged on the outer wall surface of the second annular sidewall 112.

[0084] As an example, the second annular sidewall 112 is in one-piece structure with the second wall 111.

[0085] As shown in FIGS. 2 and 3, the second shell 11 and the first shell 12 can be connected by a clamping manner. For example, the first annular sidewall 122 of the first shell 12 has a plurality of clamping blocks 1221, and the second annular sidewall 112 of the second shell 11 has a plurality of clamping holes 1121, and the plurality of clamping blocks 1221 are respectively clamped into the plurality of clamping holes 1121.

[0086] Of course, in other embodiments, the arrangement of the clamping blocks 1221 and the clamping holes 1121 can also be that the first annular sidewall 122 of the first shell 12 has the clamping holes 1121, and the second annular sidewall 112 of the second shell 11 has the clamping blocks 1221.

[0087] It can be understood that the annulus surrounded by the first annular sidewall 122 and the second annular sidewall 112 can be circular, rectangular or other shapes, which are not particularly limited in the present disclosure.

[0088] As shown in FIG. 2, the connector assembly 30 includes a connector cover 31, a conductive member 32 and a fixing member 33. The connector cover 31 and the fixing member 33 are made of insulating material, and the conductive member 32 is made of conductive material. The connector cover 31, the conductive member 32 and the fixing member 33 can be integrally injection molded as one whole piece.

[0089] The fixing member 33 is connected to the relay body 20. One end of the conductive member 32 is connected with the fixing member 33, and the other end of the conductive member 32 is connected with the connector cover 31 and located in the connector cover 31, serving as an outgoing terminal of the relay body 20. The connector cover 31 and an external connector can be connected by a plug-in manner. When the external connector is plugged into the connector cover 31, the external connector is electrically connected with the outgoing terminal.

[0090] In an embodiment, as shown in FIG. 1, the second shell 11 and the first shell 12 are connected along a mounting direction D1, and the external connector and the connector cover 31 are connected along a plug-in direction D2. The plug-in direction D2 is perpendicular to the mounting direction D1. The plug-in direction D2 and the mounting direction D1 do not interfere with each other, so that the assembly interference problem between the connector assembly 30 and the shell 10 can be avoided.

[0091] Please continue to refer to FIG. 2, the relay body 20 can have two coil lead-out ends 23 and two auxiliary contact lead-out ends 24. Correspondingly, the conductive member 32 includes four conductive strips 321, one end of the four conductive strips 321 is electrically connected with the two coil lead-out ends 23 and the two auxiliary contact lead-out ends 24 one by one, and the other end of the four conductive strips 321 is located in the connector cover 31 and used for connecting with an external connector.

[0092] As shown in FIGS. 2, 4 and 5, the shell 10 includes two spaced installation portions 13 and a gap 14 between the two installation portions 13.

[0093] In the embodiment of the present disclosure, the outer wall surface of the first annular side wall 122 of the first shell 12 is integrally formed with the installation portion 13, and the part of the first annular side wall 122 of the first shell 12 between the two installation portions 13 has the gap 14, and the gap 14 penetrates the inner wall surface and the outer wall surface of the first annular side wall 122 of the first shell 12. The gap 14 is recessed from the edge of the first annular side wall 122 away from the first wall 121 to the direction close to the first wall 121, that is, the gap 14 penetrates the edge of the opening 125.

[0094] Of course, in other embodiments, the installation portion 13 and the gap 14 can also be formed in the second shell 11. For example, the outer wall surface of the second annular side wall 112 of the second shell 11 is integrally formed with the two installation portions 13, and the part of the second annular side wall 112 between the two installation portions 13 has the gap 14, and the gap 14 is recessed from the edge of the second annular side wall 112 away from the second wall 111 to the direction close to the second wall 111.

[0095] Next, taking that the gap 14 and the installation portion 13 are both formed in the first annular side wall 122 of the first shell 12 as an example for description.

[0096] The conductive member 32 of the connector assembly 30 is arranged through the gap 14 and used for electrically connecting the relay body 20 and an external connector, and the connector cover 31 is connected with the two installation portions 13 in a separate manner and used for clamping the two installation portions 13 by the outward pressing force of the shell 10 formed by the extrusion of the relay body 20.

[0097] The relay of the embodiment of the present disclosure, after the relay body 20 is installed into the shell 10, the shell 10 is extruded by the shell wall to expand outward to form an outward expansion force, and then the two mounting portions 13 on both sides of the gap 14 have a tendency to move away from each other under the outward expansion force. The connector cover 31 is connected with the two mounting portions 13, and is used to clamp the two mounting portions 13 by the outward expansion force. Thus, under the action of the outward expansion force, the connector cover 31 can firmly clamp the two mounting portions 13, the stability of the connection between the connector cover 31 and the shell 10 is significantly improved, and the electrical connection between the conductive member 32 and the relay body 20 is avoided from being affected by the shaking of the connector cover 31 relative to the shell 10. In addition, since the connector cover 31 and the two mounting portions 13 are connected in a split manner, the connector assembly 30 can be installed at different angles on the shell 10, and then adapt to external connectors in different installation environments, and improve the versatility of the relay.

[0098] As shown in FIGS. 4 and 5, the outer wall surface of the first annular side wall 122 is provided with a plurality of first protrusions 123, and the plurality of first protrusions 123 are arranged on both sides of the gap 14 along the circumferential direction of the first annular side wall 122. The second shell 11 is in interference fit with the first protrusions 123.

[0099] In the embodiment of the present disclosure, the second shell 11 is in interference fit with the first protrusions 123 of the first shell 12, so that the second shell 11 plays a role of clamping the first annular side wall 122, reduces the size of the outward expansion force, and then makes the connector cover 31 not be subjected to an excessive outward expansion force, and avoids the problem that the connector cover 31 is broken due to the excessive outward expansion force.

[0100] In an embodiment, the outer wall surface of the first annular side wall 122 is provided with two first protrusions 123, and the two first protrusions 123 are respectively located on both sides of the gap 14 along the circumferential direction of the first annular side wall 122.

[0101] In the embodiment of the present disclosure, the shape of the first protrusion 123 is not particularly limited, for example, the first protrusion 123 can be a long strip shape, a semispherical shape, a wedge shape, etc.

[0102] As shown in FIGS. 4 and 5, the mounting portion 13 has a slot 131. In an embodiment, the extension direction of the slot 131 is parallel to the mounting direction D1 of the second shell 11 and the first shell 12.

[0103] As shown in FIG. 6, the connector cover 31 comprises a cover body 312, an extension 313 and two insertion portions 311. The cover body 312 has a receiving groove 3121 for accommodating at least part of an external connector. The extension 313 is connected to the cover body 312 and is inserted into the gap 14 of the housing 10 and located between the two mounting portions 13. The conductive member 32 is connected to the extension 313 and the end of the conductive member 32 is located in the receiving groove 3121 of the cover body 312; the extension 313 is integrally formed with the insertion portion 311 along the two side surfaces of the two mounting portions 13 in the arrangement direction. The two insertion portions 311 are respectively inserted into the insertion slot 131 of the two mounting portions 13. The insertion direction of the corresponding insertion portion 311 and the insertion slot 131 is parallel to the mounting direction D1 of the second shell 11 and the first shell 12.

[0104] In the embodiments of the present disclosure, the connector cover 31 and the mounting portion 13 are connected by insertion, which not only ensures the stability of the connection between the connector cover 31 and the mounting portion 13, but also improves the assembly efficiency.

[0105] As shown in FIG. 4, FIG. 6, FIG. 7 and FIG. 8, the insertion slot 131 has a stop wall 132, the insertion portion 311 has a stop segment 3111, and the two stop walls 132 are provided with the stop segment 3111 on the side away from each other in the arrangement direction of the two mounting portions 13. When the insertion portion 311 is inserted into the insertion slot 131, the respective projections of the stop wall 132 and the stop segment 3111 on the target plane have overlapping projections; the target plane is perpendicular to the arrangement direction of the two mounting portions 13.

[0106] In the embodiments of the present disclosure, when the two insertion portions 311 are respectively inserted into the insertion slot 131 of the two mounting portions 13, the two stop segments 3111 can respectively press the corresponding stop wall 132, so that the two mounting portions 13 are gathered to each other.

[0107] As shown in FIG. 8, the cover body 312 and one of the mounting portions 13 are located on the same side of the extension 313 in the arrangement direction of the two mounting portions 13, and the mounting portion 13 has a limiting protrusion 133 abutting against the cover body 312. By providing the limiting protrusion 133 on the mounting portion 13, the stability of the connector cover 31 can be maintained, and further avoiding the connector cover 31 from shaking relative to the housing 10.

[0108] As shown in FIG. 4 and FIG. 8, the slot 131 has a first opening 134 which is open towards the extension 313; the insertion portion 311 further has an extension segment 3112 which extends into the slot 131 from the first opening 134, one end of the extension segment 3112 is connected with the extension 313, and the other end is connected with the stop segment 3111. In other words, the cross-sectional shape of the insertion portion 311 is generally L-shaped, but it is not limited thereto. For example, the cross-sectional shape of the insertion portion 311 can also be dovetail-shaped, T-shaped, or other shapes which can apply an inwardly converging force to the two mounting portions 13.

[0109] As shown in FIG. 4, the slot 131 further includes a side stop wall 135 which, together with the stop wall 132, encloses the slot 131. One end of the side stop wall 135 extends beyond the lengthwise end face 1321 of the stop wall 132, and the portion of the side stop wall 135 which extends beyond the end face 1321 encloses a receiving space 136 together with the end face 1321.

[0110] As shown in FIG. 1 and FIG. 6, the connector cover 31 further has two limiting portions 314 which are respectively connected with the two insertion portions 311, and are respectively accommodated in the two receiving spaces 136 and in contact with the end face 1321. When the insertion portion 311 is inserted into the slot 131, as the insertion portion 311 is inserted deeper, the limiting portion 314 gradually approaches the end face 1321 of the stop wall 132, and when the limiting portion 314 comes into contact with the end face 1321, it means that the insertion portion 311 has been inserted into place. In addition, the limiting portion 314 is accommodated in the receiving space 136, which can improve the compactness of the insertion structure, and improve the stability of the connection between the insertion portion 311 and the slot 131.

[0111] As shown in FIG. 8 and FIG. 9, one of the inner surface of the slot 131 and the outer surface of the insertion portion 311 is provided with a second protrusion 137 which is in interference fit with the other. By providing the second protrusion 137, the firmness of the connection between the insertion portion 311 and the mounting portion 13 can be improved.

[0112] For example, in one embodiment, the inner surface of the slot 131 is provided with the second protrusion 137 which is in interference fit with the insertion portion 311; in another embodiment, the outer surface of the insertion portion 311 is provided with the second protrusion 137 which is in interference fit with the slot 131.

[0113] In this disclosure, the shape of the second protrusion 137 is not particularly limited, for example, the second protrusion 137 can be long-strip-shaped, semi-spherical, or the like.

[0114] As shown in FIG. 1, the receiving groove 3121 of the connector cover 31 has a second opening 3122, which is parallel to the arrangement direction of the two mounting portions 13, and through which the external connector can be inserted into the cover body 312. In other words, the insertion direction of the external connector and the connector cover 31 is parallel to the arrangement direction of the two mounting portions 13. In this way, when the external connector is inserted or pulled out, the stability of the connection between the connector cover 31 and the two mounting portions 13 is not affected.

[0115] As shown in FIGS. 2, 3, 10 and 11, the second shell 11 has a clamping groove 114, and at least part of the edge of the opening 125 of the first shell 12 is inserted into the clamping groove 114 (in the embodiment of the present disclosure, the end of the first annular side wall 122 away from the first wall 121 and the part located on both sides of the notch 14 is inserted into the clamping groove 114). By inserting the first annular side wall 122 of the first shell 12 into the clamping groove 114 of the second shell 11, the deformation of the edge of the opening 125 of the first shell 12 inwardly can be avoided, and the stability of the connection between the first shell 12 and the second shell 11 is improved, thereby avoiding the loosening of the first shell 12 and the second shell 11. In addition, the strength of the shell wall near the notch 14 of the first annular side wall 122 can be improved, and the inward indentation of the shell wall near the notch 14 of the first annular side wall 122 is avoided, thereby affecting the assembly of the connector assembly 30 and the housing 10.

[0116] It is worth mentioning that when the second shell 11 and the first shell 12 are connected by clamping, for example, the clamping block 1221 cooperates with the clamping hole 1121, if the edge of the opening 125 of the first shell 12 deforms inwardly, the clamping block 1221 is easy to be pulled out of the clamping hole 1121, thereby causing the loosening of the second shell 11 and the first shell 12. In the embodiment of the present disclosure, by inserting the first annular side wall 122 of the first shell 12 into the clamping groove 114 of the second shell 11, the deformation of the edge of the opening 125 of the first shell 12 inwardly can be avoided, thereby preventing the clamping block 1221 from being pulled out of the clamping hole 1121, ensuring the stability of the clamping of the second shell 11 and the first shell 12, and avoiding loosening.

[0117] As shown in FIG. 3, in an embodiment, the second shell 11 is internally provided with a reinforcing portion 113, the reinforcing portion 113 is connected to the inner wall surface of the second annular side wall 112, and the clamping groove 114 is formed between the reinforcing portion 113 and the inner wall surface of the second annular side wall 112.

[0118] Of course, in other embodiments, the thickness of the second annular side wall 112 is relatively thick, and the clamping groove 114 can also be formed in the second annular side wall 112 of the second shell 11.

[0119] In summary, the relay of the embodiment of the present disclosure has at least the following advantages and beneficial effects:

[0120] The relay of the embodiments of the present disclosure can avoid affecting the firmness of the connection between the first shell 12 and the second shell 11 due to the deformation of the edge of the opening 125 of the first shell 12 inward, and further avoid the loosening of the first shell 12 and the second shell 11, by inserting at least part of the edge of the opening of the first shell 12 into the clamping groove 114 of the second shell 11.

[0121] Further, the strength of the shell wall near the notch 14 of the first shell 12 is also improved, avoiding the inward indentation of the shell wall near the notch 14 of the first shell 12 to affect the assembly of the connector assembly 30 and the shell 10. Further, by inserting the first annular side wall 122 of the first shell 12 into the clamping groove 114 of the second shell 11, the deformation of the edge of the opening 125 of the first shell 12 inward can be prevented, and further the clamping block 1221 can be prevented from being detached from the clamping hole 1121, ensuring the firmness of the clamping of the second shell 11 and the first shell 12, and avoiding loosening.

[0122] It can be understood that the various embodiments / embodiments provided by the present disclosure can be combined with each other without contradiction, which will not be illustrated one by one here.

[0123] In the embodiments of the application, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0124] In the description of the embodiments of the application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the embodiments of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the application.

[0125] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0126] The application has been described in connection with the preferred embodiments. Of course, it is to be understood that for the purpose of the application, modifications and changes can be suggested by those skilled in the art, and it is intended that the present application encompass such modifications or changes as fall within the scope of the application.

Claims

1. A housing, characterized in that, The shell comprises: a first shell having an inner cavity with an opening, the inner cavity being used for accommodating a relay body; and a second shell connected with the first shell to enclose the relay body in the inner cavity, the second shell having a clamping groove into which at least part of the opening edge of the first shell is inserted. The shell wall of the first shell further has a notch, the notch being formed through the opening edge.

2. The housing of claim 1, wherein The second shell has the clamping groove, and the portions of the first shell located on both sides of the notch are inserted into the clamping groove.

3. The housing of claim 2, wherein, The second shell comprises:

4. The housing according to claim 1 or 2, characterized in that a second wall; a second annular side wall connected at one end with the second wall and at the other end with the first shell; and a reinforcing portion connected to the inner wall surface of the second annular side wall, the reinforcing portion and the inner wall surface of the second annular side wall forming the clamping groove. The first shell comprises a first wall and a first annular side wall, one end of the first annular side wall being connected with the first wall and the other end surrounding the opening; 5. The housing of claim 2, wherein The notch is recessed from the edge of the first annular side wall away from the first wall to the direction close to the first wall. The outer wall surface of the first annular side wall is provided with a plurality of first protrusions, the plurality of first protrusions being arranged on both sides of the notch along the circumference of the first annular side wall, and the second shell is in interference fit with the first protrusions.

6. The housing of claim 5, wherein, The shell further comprises:

7. The enclosure of claim 2, wherein, a connector cover plugged with the first shell, the connector cover being used for mounting an external connector. The first shell and the second shell are connected in a mounting direction; 8. The housing of claim 7, wherein, The external connector is connected with the connector cover in a plugging direction, the plugging direction being perpendicular to the mounting direction. The second shell is clamped with the first shell.

9. The enclosure of claim 1, wherein, One of the first shell and the second shell has a clamping hole, and the other has a clamping block for clamping into the clamping hole.

10. The housing of claim 9, wherein, The shell comprises:

11. A relay characterized by comprising: The shell of any one of claims 1-10. The relay further comprises:

12. The relay of claim 11, wherein, a relay body, the relay body being loaded into the inner cavity through the opening and being enclosed in the inner cavity by the second shell. The relay body is in interference fit with the first shell.

13. The relay of claim 12, wherein, The relay further comprises:

14. The relay of claim 12, wherein, a conductive member penetrating the first shell, the conductive member being used for electrically connecting the relay body and an external connector. ​

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