Switching mechanism and socket

Abstract

The utility model relates to the technical field of sockets, and discloses a switching mechanism and a socket, and the switching mechanism comprises an installation housing, a static contact piece and a movable contact piece. The static contact piece is provided with a static contact, the movable contact piece is provided with a movable contact, and the static contact and the movable contact are accommodated in an inner cavity of the mounting shell; the installation shell is provided with an air inlet and an air outlet, the air inlet and the air outlet are located in the two opposite sides of the movable contact respectively, and the air inlet and the air outlet are communicated and are communicated with a gap formed when the movable contact and the static contact are separated. According to the switching mechanism and the socket provided by the invention, effective heat dissipation of the switching mechanism can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of sockets, and in particular to a switch mechanism and a socket. Background Art

[0002] Some movable sockets or wall sockets are provided with socket switches, which usually include a stationary contact piece and a moving contact piece, and the socket assembly in the socket is energized or disconnected through the contact and separation between the stationary contact piece and the moving contact piece.

[0003] In the related art, the moving contact and the stationary contact are usually confined in a relatively closed space, which makes it difficult to dissipate the heat generated during the contact and separation process between the moving contact and the stationary contact in a timely manner, thus affecting the service life of the socket switch. Utility Model Content

[0004] In view of this, the present application provides a switch mechanism and a socket, which can achieve effective heat dissipation of the switch mechanism. The present application specifically adopts the following technical solutions:

[0005] In a first aspect, the present application provides a switch mechanism, the switch mechanism comprising a mounting housing, a stationary contact piece and a movable contact piece;

[0006] The stationary contact piece has a stationary contact point, the movable contact piece has a movable contact point, and the stationary contact point and the movable contact point are accommodated in the inner cavity of the mounting housing;

[0007] An air inlet and an air outlet are provided on the mounting shell, and the air inlet and the air outlet are respectively located on opposite sides of the moving contact, and the air inlet and the air outlet are communicated with each other and are communicated with the gap when the moving contact and the static contact are separated.

[0008] Optionally, the opening direction of the air inlet is parallel to the contact direction of the static contact and the moving contact; and / or,

[0009] An opening direction of the air outlet intersects with the contact direction.

[0010] Optionally, the moving contact and the static contact are respectively located on the air flow path between the air inlet and the air outlet, wherein:

[0011] The orthographic projections of the air inlet and the air outlet on a setting plane are respectively at least partially located on different sides of a setting straight line, wherein the setting plane is parallel to the contact direction of the static contact and the moving contact, and the setting straight line passes through the center of the orthographic projection of the static contact on the setting plane and the center of the orthographic projection of the moving contact on the setting plane.

[0012] Optionally, the mounting housing includes a cover shell and a base;

[0013] The housing comprises a top wall and two side walls arranged opposite to each other along a first direction, the top wall is connected to the two side walls respectively, and the two side walls are overlapped with the base at a side away from the top wall to enclose the inner cavity;

[0014] The air inlet is opened on the top wall, and is opened along the second direction between the two side walls on the first side of the housing to form the air outlet;

[0015] The first direction is parallel to the overlapping plane between the cover shell and the base, and the second direction is perpendicular to the first direction and parallel to the overlapping plane.

[0016] Optionally, the housing further comprises a first clamping platform, the first clamping platform is located on the first side of the housing and two ends of the first clamping platform are respectively connected to the two side walls, and the first clamping platform is spaced apart from the overlap plane;

[0017] The base has a first hook, which protrudes from the overlapping plane and is engaged with the first clamping platform. At least one side edge of the first hook along the first direction is spaced apart from the adjacent side wall.

[0018] Optionally, the housing further comprises a second card platform, the second card platform is located on the second side of the housing and two ends of the second card platform are respectively connected to the two side walls, the second card platform is spaced from the top wall, and the space between the second card platform and the top wall is connected to the air inlet, and the first side and the second side are opposite;

[0019] The base also has a second hook, and the second hook is engaged with the second clamping platform.

[0020] Optionally, the switch mechanism further comprises an electrode contact piece, which is located on a side of the static contact close to the air outlet, and in the contact direction between the static contact and the moving contact, the electrode contact piece is located on a side of the static contact away from the moving contact.

[0021] Optionally, the inner side of the mounting housing has a first limit stop wall and a second limit stop wall which are arranged opposite to each other, and the electrode contact piece is limited between the first limit stop wall and the second limit stop wall;

[0022] The first limiting barrier wall overlaps the stationary contact piece at one side away from the electrode contact piece, and in the direction from the stationary contact point to the moving contact point, the first limiting barrier wall is not higher than the stationary contact piece.

[0023] Optionally, the switch mechanism further comprises a circuit board and a pair of conductive springs, wherein the pair of conductive springs are respectively against the circuit board and are used to connect the circuit board to the circuit;

[0024] At least one of the conductive springs has a first coil and a second coil, the inner diameter of the first coil is smaller than the inner diameter of the second coil, the first coil abuts against the circuit board, and the second coil is located on a side of the first coil away from the circuit board.

[0025] Optionally, the mounting shell has a pair of sleeve portions, each of which accommodates a conductive spring, and a side edge of the sleeve portion close to the circuit board is flush with the top surface of the mounting shell, the top surface is parallel to the circuit board, and at least partially surrounds the peripheral edge of the sleeve portion.

[0026] In a second aspect, an embodiment of the present application further provides a socket, which includes the switch mechanism as described in the first aspect.

[0027] The beneficial effects of the embodiments of the present application are at least:

[0028] The switch mechanism and socket provided in the embodiments of the present application are configured to open a connected air inlet and air outlet on the mounting shell, so that external gas can flow in through the air inlet and flow out through the air outlet, thereby forming an air flow loop between the air inlet and the air outlet, and because the gap separating the moving contact and the static contact is connected to the air inlet and the air outlet, the gas can take away the heat generated between the moving contact and the static contact when flowing through the air flow loop, thereby realizing effective heat dissipation of the switch mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 is a first structural schematic diagram of a switch mechanism provided in an embodiment of the present application;

[0031] Figure 2 is a first cross-sectional structural schematic diagram of a switch mechanism provided in an embodiment of the present application;

[0032] Figure 3 is a second cross-sectional structural schematic diagram of a switch mechanism provided in an embodiment of the present application;

[0033] Figure 4 yes Figure 2 A front view of the structure in cross section;

[0034] Figure 5is a second structural schematic diagram of a switch mechanism provided in an embodiment of the present application;

[0035] Figure 6 is a third structural schematic diagram of a switch mechanism provided in an embodiment of the present application;

[0036] Figure 7 is a schematic structural diagram of a conductive spring in a switch mechanism provided in an embodiment of the present application;

[0037] Figure 8 It is a structural schematic diagram of a socket provided in an embodiment of the present application.

[0038] Reference numerals:

[0039] 1. Mounting shell; 11. Inner cavity; 12. Air inlet; 13. Air outlet; 14. Cover; 141. Top wall; 142. Side wall; 143. First clamping platform; 144. Second clamping platform; 145. Sleeve portion; 146. Top surface; 15. Base; 151. Overlapping plane; 152. First clamping hook; 153. Second clamping hook; 154. First limit stop wall; 155. Second limit stop wall;

[0040] 2. Stationary contact; 21. Stationary contact point; 22. First terminal;

[0041] 3. Moving contact piece; 31. Moving contact point; 32. Second terminal;

[0042] 4. Electrode contact;

[0043] 5. Circuit board; 51. Light-emitting component;

[0044] 6. conductive spring; 61. first spring coil; 62. second spring coil;

[0045] 7. Light guide; 71. Light guide column; 72. Protective sleeve;

[0046] 8. switch component; 81. light-transmitting portion. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] The present application embodiment provides a switch mechanism, such as Figure 1 and Figure 2As shown, the switch mechanism includes a mounting housing 1, a stationary contact piece 2 and a moving contact piece 3. The stationary contact piece 2 has a stationary contact 21, the moving contact piece 3 has a moving contact 31, and the stationary contact 21 and the moving contact 31 are accommodated in an inner cavity 11 of the mounting housing 1. An air inlet 12 and an air outlet 13 are provided on the mounting housing 1. The air inlet 12 and the air outlet 13 are respectively located on opposite sides of the moving contact 31, and the air inlet 12 and the air outlet 13 are communicated with each other and communicated with the gap when the moving contact 31 and the stationary contact 21 are separated.

[0049] The switch mechanism provided in the embodiment of the present application has an air inlet 12 and an air outlet 13 connected to each other opened on the mounting shell 1, so that external gas can flow in through the air inlet 12 and flow out through the air outlet 13, thereby forming an air flow path for air flow between the air inlet 12 and the air outlet 13, and because the gap separating the moving contact 31 and the static contact 21 is respectively connected to the air inlet 12 and the air outlet 13, when the gas flows through the air flow path, it can take away the heat generated between the moving contact 31 and the static contact 21, thereby realizing effective heat dissipation of the switch mechanism.

[0050] In the embodiment of the present application, the air inlet 12 is connected to the air outlet 13, and is connected to the gap when the moving contact 31 and the static contact 21 are separated, which means that the gas flowing from the air inlet 12 to the air outlet 13 can enter the gap between the moving contact 31 and the static contact 21, and thus blow toward the moving contact 31 and the static contact 21. In addition, since the gap when the moving contact 31 and the static contact 21 are separated also serves as the moving stroke of the moving contact 31, the moving contact 31 can move within the stroke. When the air inlet 12 and the air outlet 13 are connected to the gap when the moving contact 31 and the static contact 21 are separated, respectively, even if the moving contact 31 and the static contact 21 are in a state of contact with each other, the gas flowing from the air inlet 12 to the air outlet 13 can also blow toward the moving contact 31 and the static contact 2.

[0051] In some embodiments, Figure 3 As shown, the moving contact 31 and the static contact 21 can be located on the air flow path between the air inlet 12 and the air outlet 13, respectively. Exemplarily, the air inlet 12 and the air outlet 13 can be communicated with the inner cavity 11 of the mounting housing 1, respectively, so that the entire inner cavity 11 of the mounting housing 1 can be used as a part of the air flow path. In this way, the moving contact 31 and the static contact 21 accommodated in the inner cavity 11 can be located on the air flow path formed between the moving contact 31 and the static contact 21, so as to realize that the air inlet 12 and the air outlet 13 are respectively connected with the gap when the moving contact 31 and the static contact 21 are separated.

[0052] In other examples, the inner cavity 11 of the mounting housing 1 may have a partition, the air inlet 12 and the air outlet 13 may be located on one side of the partition, and the moving contact 31 and the static contact 21 are located on the other side of the partition, so that the moving contact 31 and the static contact 21 are located on the side of the air flow path formed between the air inlet 12 and the air outlet 13. Through holes are provided on the partition to connect the spaces on opposite sides of the partition, so that the air inlet 12 and the air outlet 13 are connected to the gap when they are separated from the moving contact 31 and the static contact 21. In this way, when the gas flows through the air flow path, the gas can at least accelerate the air flow on the other side of the partition at the through hole to take away the heat generated between the moving contact 31 and the static contact 21. In this case, the moving contact 31 and the static contact 21 can be arranged near the through hole.

[0053] In some embodiments, Figure 4 As shown, the orthographic projections of the air inlet 12 and the air outlet 13 on the set plane can be at least partially located on different sides of a set straight line, wherein the set plane is parallel to the contact direction L of the static contact 21 and the moving contact 31, and the set straight line passes through the center of the orthographic projection of the static contact 21 on the set plane and the center of the orthographic projection of the moving contact 31 on the set plane.

[0054] For example, Figure 3 As shown, the mounting housing 1 can be substantially rectangular, and the contact direction L of the static contact 21 and the moving contact 31 is parallel to the height direction of the mounting housing 1. In this case, the orthographic projections of the air inlet 12 and the air outlet 13 on the set plane can be at least partially located on different sides of the set straight line, that is, the air inlet 12 and the air outlet 13 are at least partially opposite to each other along the length direction or the width direction of the mounting housing 1. Compared with the embodiment in which the air inlet 12 and the air outlet 13 are opposite to each other along the height direction of the mounting housing 1 and are parallel to the contact direction L, it can be avoided that the superimposed moving contact piece 3 and the static contact piece 2 themselves affect the air flow between the air inlet 12 and the air outlet 13.

[0055] It should be noted that Figure 3 and Figure 4 The cross-sectional directions are perpendicular to each other. Figure 3 Viewed along the height direction of the mounting housing 1 (the section is perpendicular to the height direction), Figure 4 The installation case 1 is viewed in section along its width direction (the section is perpendicular to the width direction).

[0056] In the embodiment of the present application, the contact direction L between the moving contact 31 and the static contact 21 can be understood as the overlapping direction (or relative arrangement direction) between the moving contact 31 and the static contact 21 when they are in contact; or, it can be understood as the orientation of the static contact 21.

[0057] like Figure 2 and Figure 4 As shown, the setting plane may pass through the line connecting the centers of the static contact 21 and the movable contact 31, and the setting plane may be perpendicular to the width direction of the mounting housing 1. In other embodiments, the setting plane may also be perpendicular to the length direction of the mounting housing 1. The setting straight line may be parallel to the contact direction L of the static contact 21 and the movable contact 31.

[0058] In some embodiments, Figure 3 and Figure 4 As shown, the air inlet 12 and the air outlet 13 can be arranged relatively along the length direction of the mounting shell 1, and the stationary contact piece 2 and the moving contact piece 3 can also extend along the length direction, so that the flow path from the air inlet 12 to the air outlet 13 is basically parallel to the extension direction of the stationary contact piece 2 and the moving contact piece 3, reducing the obstruction of the moving contact piece 3 and the stationary contact piece 2 themselves to the air flow.

[0059] In some embodiments, Figure 3 and Figure 4 As shown, the movable contact piece 3 can swing relative to the stationary contact piece 2 to approach or move away from the stationary contact piece 2. The side of the movable contact piece 3 provided with the movable contact point 31 can be referred to as the swing side, and the side away from the movable contact point 31 can be referred to as the fixed side. The air inlet 12 can be located on the fixed side of the movable contact piece 3, and the air outlet 13 can be located on the swing side of the movable contact piece 3, so that the airflow is on the path from the air inlet 12 to the air outlet 13. When the movable contact piece 3 and the stationary contact piece 2 are in a separated state, the movable contact piece 3 gradually deviates from the stationary contact piece 2 along the airflow path, thereby providing a certain guide for the airflow.

[0060] In some embodiments, Figure 2 and Figure 4 As shown, when the moving contact 31 is in the extreme position separated from the static contact 21, in the contact direction L perpendicular to the static contact 21 and the moving contact 31, at least a part of the air outlet 13 can be located between the static contact 21 and the moving contact 31. That is to say, in the direction from the static contact 21 to the moving contact 31, the bottom end of the air outlet 13 can be lower than the moving contact 31, and the top end of the air outlet 13 can be higher than the static contact 21. In this way, the airflow flowing in from the air inlet 12 can directly blow through the gap between the static contact 21 and the moving contact 31 when it reaches the vicinity of the air outlet 13, thereby improving the heat dissipation effect of the switch mechanism.

[0061] In some embodiments, the bottom end of the air outlet 13 may be lower than the static contact 21 , and the top end of the air outlet 13 may be higher than the moving contact 31 .

[0062] In some embodiments, the width of the air inlet 12 and the air outlet 13 along the first direction may be no less than the width of the static contact piece 2 and the moving contact piece 3, and the first direction is perpendicular to the contact direction L between the static contact 21 and the moving contact 31, and intersects with the relative arrangement direction between the air inlet 12 and the air outlet 13 (for example, is perpendicular).

[0063] For example, Figure 3 As described above, the air inlet 12 and the air outlet 13 can be arranged opposite to each other along the length direction of the mounting housing 1, and the distance between the air inlet 12 and the air outlet 13 along the width direction of the mounting housing 1 can be substantially equal to the width of the mounting housing 1. In this way, the airflow from the air inlet 12 to the air outlet 13 can at least directly blow across the entire width surface of the moving contact piece 3.

[0064] In some embodiments, Figure 1 and Figure 2 As shown, the opening direction of the air outlet 13 may intersect with the contact direction of the static contact 21 and the moving contact 31. Figure 2 As shown, when the moving contact 31 moves in a swinging manner, the moving contact 31 has an arc trajectory, and the arc may be tangent to the contact direction L. In this case, when the moving contact 31 is separated from the stationary contact 21, the overlapping direction (or relative arrangement direction) between the moving contact 31 and the stationary contact 21 may intersect with the contact direction L therebetween.

[0065] It can be understood that when the switch mechanism is turned on and off, the moving contact 31 can move relative to the stationary contact 21 along the contact direction L between the two. Therefore, when the moving contact 31 moves toward or away from the stationary contact 21, a moving airflow along the contact direction L is generated near the moving contact 31 and the stationary contact 21. By setting the opening direction of the air outlet 13 to intersect with the contact direction L, it can be avoided that the moving airflow interferes with the heat dissipation between the moving contact 31 and the stationary contact 21.

[0066] In some embodiments, the opening direction of the air outlet 13 may be perpendicular to the contact direction L. For example, Figure 1 and Figure 2 As shown, the contact direction L between the moving contact 31 and the static contact 21 may be parallel to the height direction of the mounting housing 1, and the opening direction of the air outlet 13 may be parallel to the length direction of the mounting housing 1. Alternatively, in other embodiments, the opening direction of the air outlet 13 may be parallel to the width direction of the mounting housing 1.

[0067] like Figure 1 and Figure 2As shown, the opening direction of the air inlet 12 can be parallel to the contact direction L between the static contact 21 and the moving contact 31. Therefore, when the moving contact 31 moves toward or away from the static contact 21, the moving airflow along the contact direction L can promote the external gas to enter the inner cavity 11 of the mounting housing 1 through the air inlet 12, thereby improving the heat dissipation efficiency of the switch mechanism.

[0068] In other embodiments, the opening direction of the air inlet 12 may also be consistent with the opening direction of the air outlet 13, so as to be perpendicular to the contact direction L between the static contact 21 and the movable contact 31. In this case, the air inlet 12 and the air outlet 13 may be implemented with similar structures.

[0069] In some embodiments, Figure 1 and Figure 5 As shown, the mounting housing 1 includes a housing 14 and a base 15, wherein the housing 14 includes a top wall 141 and two side walls 142 arranged opposite to each other along a first direction, the top wall 141 is connected to the two side walls 142 respectively, and the two side walls 142 are overlapped with the base 15 at a side away from the top wall 141 to enclose an inner cavity 11. Figure 2 As shown, the stationary contact piece 2 and the moving contact piece 3 can be fixed on the base 15 .

[0070] The air inlet 12 is opened on the top wall 141, and is opened along the second direction between the two side walls 142 on the first side of the housing 14 to form an air outlet 13. Exemplarily, the interval between the two side walls 142 at both ends of the first side can serve as the air outlet 13. The first direction is parallel to the overlapping plane 151 between the housing 14 and the base 15, and the second direction is perpendicular to the first direction and parallel to the overlapping plane 151.

[0071] For example, Figure 5 As shown, the cover 14 and the base 15 can overlap each other along the height direction of the mounting shell 1, so that the overlapping plane 151 can be perpendicular to the contact direction L of the static contact 21 and the moving contact 31, and the opening direction of the air outlet 13 is also perpendicular to the contact direction L of the static contact 21 and the moving contact 31. The first direction can be the width direction of the mounting shell 1, and the second direction can be the length direction of the mounting shell 1. The first side of the cover 14 can be one side of the cover 14 (or the side wall 142) along the length direction. In some embodiments, the other side of the cover 14 along the length direction (i.e., the second side described below) can be closed, so that the cover 14 can also include a baffle, which is located on the second side and is respectively connected to the two side walls 142 to close the interval between the two side walls 142; or, the second side between the two side walls 142 can also be open.

[0072] In some embodiments, Figure 5As shown, the housing 14 may further include a first clamping platform 143, which is located at a first side of the housing 14 and has two ends connected to the two side walls 142, respectively. The first clamping platform 143 is spaced apart from the overlap plane 151. Figure 5 It can be seen that in the height direction of the mounting housing 1, the first clamping platform 143 is higher than the overlapping plane 151 between the cover 14 and the base 15. Since the two side walls 142 are open at the first side of the cover 14, the first clamping platform 143 connected between the two side walls 142 can be exposed to the air outlet 13.

[0073] The base 15 has a first hook 152, which protrudes from the overlap plane 151 and engages with the first clamping platform 143, and at least one side edge of the first hook 152 along the first direction is spaced from the adjacent side wall 142. Figure 5 As shown, the two side edges of the first hook 152 along the extension direction of the first clamping platform 143 are spaced from the adjacent side walls 142 respectively, so that the first hook 152 can separate the air outlet 13 into two sub-air outlets. On the first side of the housing 14, the airflow can at least pass through the gap between the first clamping platform 143 and the overlap plane 151 and flow out to the outside of the inner cavity 11 of the mounting shell 1 through the two sub-air outlets on both sides of the first hook 152, so that when the housing 14 and the base 15 are engaged, the first clamping platform 143 and the first hook 152 can be prevented from blocking the outflow of the airflow.

[0074] like Figure 4 As shown, the first hook 152 is engaged with the side of the first platform 143 away from the overlap plane 151. In some embodiments, the side of the first platform 143 facing the overlap plane 151 may be provided with an inclined surface, and the closer the inclined surface is to the first hook 152 (or the air outlet 13), the more it inclines in the direction away from the overlap plane 151, so that the inclined surface can not only provide guidance for the engagement assembly between the first hook 152 and the first platform 143, but also provide guidance for the airflow to flow out through the air outlet 13.

[0075] In some embodiments, the air inlet 12 may be formed with the same or similar structure as the air outlet 13, and the opening direction of the air inlet 12 may be consistent with the opening direction of the air outlet 13 and perpendicular to the contact direction L between the static contact 21 and the moving contact 31. In other words, Figure 5 The matching structure of the first clamping platform 143 and the first clamping hook 152 in the structure shown can be located at the air outlet 13 or at the air inlet 12.

[0076] In some embodiments, Figure 6As shown, the housing 14 further includes a second clamping platform 144, which is located at the second side of the housing 14 and has two ends connected to the two side walls 142 respectively, and the second clamping platform 144 is spaced from the top wall 141, and the space between the second clamping platform 144 and the top wall 141 is connected to the air inlet 12. The base 15 further includes a second hook 153, which is engaged with the second clamping platform 144, and the second side of the housing 14 is opposite to the first side of the housing 14.

[0077] like Figure 6 As shown, the air inlet 12 is opened at the top wall 141 in the housing 14, so that the opening direction of the air inlet 12 is perpendicular to the height direction of the mounting housing 1 (or the contact direction L of the static contact 21 and the moving contact 31). In this case, the airflow in the external environment can enter the inner cavity of the mounting housing 1 through the gap between the second card platform 144 and the top wall 141 at the air inlet 12. Even if the second side of the housing 14 is closed, the airflow path between the air inlet 12 and the air outlet 13 can be kept unobstructed.

[0078] In some embodiments, on the second side of the housing 14, the space between the two side walls 142 may be closed, and the second hook 153 is located inside the closed ends of the two side walls 142 to be disposed close to the air outlet 13. Alternatively, on the second side of the housing 14, the space between the two side walls 142 is open, and the two opposite side edges of the second hook 153 along the first direction may abut against the side walls 142 to close the second side of the housing 14. In other embodiments, on the second side of the housing 14, the space between the two side walls 142 is open, and the two opposite side edges of the second hook 153 along the first direction may be spaced apart from the adjacent side walls 142.

[0079] In some embodiments, in the height direction of the mounting housing 1, the first clamping platform 143 and the second clamping platform 144 may be located at substantially the same height. Figure 5 and Figure 6 It can be seen that the air flow can take in air from the side of the second card platform 144 away from the overlapping plane 151, and exhaust air from the side of the first card platform 143 toward the overlapping plane 151, thereby increasing the distance of the air flow path between the air inlet 12 and the air outlet 13 in the height direction, thereby improving the heat dissipation efficiency of the switch mechanism.

[0080] In other embodiments, the air outlet 13 may also be formed by the same or similar structure as the air inlet 12. The opening direction of the air inlet 12 may be consistent with the opening direction of the air outlet 13 and parallel to the contact direction L between the static contact 21 and the moving contact 31.

[0081] In some embodiments, Figure 4As shown, the switch mechanism may further include an electrode contact piece 4, which is located on the side of the stationary contact 21 close to the air outlet 13, and in the contact direction between the stationary contact 21 and the moving contact 31, the electrode contact piece 4 is located on the side of the stationary contact 21 away from the moving contact 31.

[0082] The electrode contact 4 may be, for example, an N-pole contact. Figure 1 and Figure 3 As shown, the electrode contact piece 4 can partially extend out of the mounting housing 1 to facilitate electrical connection with the N-pole power line of the switch mechanism. The stationary contact piece 2 can have a first terminal 22, and the moving contact piece 3 can have a second terminal 32. The first terminal 22 and the second terminal 32 can respectively extend out of the mounting housing 1 to facilitate electrical connection with the L-pole power line of the switch mechanism. In other embodiments, the electrode contact piece 4 can be, for example, an L-pole contact piece. In this case, the first terminal 22 and the second terminal 32 can be connected to the N-pole power line of the switch mechanism.

[0083] By sinking the electrode contact piece 4 below the stationary contact 21 along the height direction of the mounting housing 1 , the electrode contact piece 4 can avoid the gap between the stationary contact 21 and the moving contact 31 , thereby reducing the influence of the heat generated between the stationary contact 21 and the moving contact 31 on the electrode contact piece 4 .

[0084] In some embodiments, Figure 4 As shown, the inner side of the mounting housing 1 may have a first limiting retaining wall 154 and a second limiting retaining wall 155 arranged opposite to each other, and the electrode contact piece 4 is limited between the first limiting retaining wall 154 and the second limiting retaining wall 155. The first limiting retaining wall 154 overlaps the stationary contact piece 2 on the side away from the electrode contact piece 4, and in the direction from the stationary contact point 21 to the moving contact point 31, the first limiting retaining wall 154 is not higher than the stationary contact piece 2.

[0085] Exemplarily, the upper surface of the first limit retaining wall 154 along the height direction can be set to be no higher than the static contact piece 2, and in the height direction, the movable contact 31 is located above the static contact 21. In this way, the first limit retaining wall 154 can avoid the interval between the static contact 21 and the movable contact 31 to prevent the first limit retaining wall 154 from hindering the heat dissipation between the static contact 21 and the movable contact 31.

[0086] In a specific implementation, the first limit retaining wall 154 and the second limit retaining wall 155 can be arranged relatively along the second direction, and the second direction is, for example, the length direction of the mounting housing 1. The upper surface of the first limit retaining wall 154 in the height direction can be substantially flush with the static contact piece 2; or, the static contact piece 2 can be directly overlapped on the upper surface of the first limit retaining wall 154.

[0087] In some embodiments, Figure 2 and Figure 7As shown, the switch mechanism may further include a circuit board 5 and a pair of conductive springs 6, the pair of conductive springs 6 respectively abut against the circuit board 5 and are used to connect the circuit board 5 to the circuit. Among them, at least one conductive spring 6 may have a first spring coil 61 and a second spring coil 62, the inner diameter of the first spring coil 61 is smaller than the inner diameter of the second spring coil 62, the first spring coil 61 abuts against the circuit board 5, and the second spring coil 62 is located on the side of the first spring coil 61 away from the circuit board 5.

[0088] In some embodiments, the side of the circuit board 5 that contacts the conductive spring 6 may be tinned to improve the conductivity between the circuit board 5 and the conductive spring 6. However, due to process errors, the outer edge of the pad of the circuit board 5 may not be tinned, resulting in poor conductivity between the circuit board 5 and the conductive spring 6. In this regard, by providing a first spring coil 61 with a smaller inner diameter at one end of the conductive spring 6 that abuts against the circuit board 5, the effective contact area between the conductive spring 6 and the circuit board 5 is increased, so that on the basis of ensuring the elastic force of the conductive spring 6, even if the outer edge of the pad of the circuit board 5 is missing tinned, the conductivity between the circuit board 5 and the conductive spring 6 can be guaranteed.

[0089] like Figure 2 and Figure 4 As shown, one of a pair of conductive springs 6 can be connected to the above-mentioned electrode contact piece 4, and the other can be connected to the moving contact piece 3, so that after the electrode contact piece and the moving contact piece 3 are connected to the circuit, the pair of conductive springs 6 can respectively provide N-pole input and L-pole input for the circuit board 5 to realize power supply of the circuit board 5.

[0090] In some embodiments, the end of the conductive spring 6 that contacts the electrode contact piece 4 (or the movable contact piece 3 ) may also be provided with a spring coil with a reduced inner diameter to ensure conductivity between the conductive spring 6 and the electrode contact piece 4 (or the movable contact piece 3 ).

[0091] like Figure 1 and Figure 2 As shown, the switch mechanism may further include a light guide 7 and a switch 8, wherein the light guide 7 is located on the side of the circuit board 5 away from the conductive spring 6, and the switch 8 is located on the side of the light guide 7 away from the circuit board 5. The circuit board 5 may have a light emitting member 51, the light guide 7 has a light guide column 71 to cover the light emitting member 51, and the switch 8 has a light-transmitting portion 81, and the light guide column 71 may be exposed relative to the light-transmitting portion 81, so that the switch mechanism may have an indicator light function. The light-transmitting portion 81 may be, for example, a through hole.

[0092] In some embodiments, Figure 4As shown, the mounting shell 1 may have a pair of sleeve portions 145, each sleeve portion 145 contains a conductive spring 6, and a side edge of the sleeve portion 145 close to the circuit board 5 is flush with the top surface 146 of the mounting shell 1, and the top surface 146 is parallel to the circuit board 5 and at least partially surrounds the peripheral edge of the sleeve portion 145.

[0093] like Figure 2 As shown, the light guide 7 may have a pair of protective sleeves 72, each protective sleeve 72 is respectively arranged corresponding to a sleeve portion 145 to accommodate one end of the conductive spring 6 that abuts against the circuit board 5. Since the movable contact piece 3 can swing toward or away from the stationary contact piece 2 under the drive of the switch member 8, the protective sleeve 72 and the sleeve portion 145 need to be spaced apart to provide a certain escape stroke for the conductive spring 6, which results in the conductive spring 6 being partially exposed between the sleeve portion 145 and the protective sleeve 72, and thus being easily bent and deformed by external impact, resulting in poor conductivity of the circuit board 5.

[0094] In this regard, the edge of one side of the sleeve portion 145 in the mounting housing 1 close to the circuit board 5 is flush with the top surface 146 of the mounting housing 1, so as to reduce the top height of the sleeve portion 145 as much as possible in the height direction of the mounting housing 1. In this way, on the basis of ensuring the avoidance stroke between the protective sleeve 72 and the sleeve portion 145, the height of the protective sleeve 72 can be increased, so that one end of the conductive spring 6 accommodated in the protective sleeve 72 is not easily deflected or deformed, thereby improving the conductivity reliability between the circuit board 5 and the conductive spring 6.

[0095] In some embodiments, Figure 2 As shown, the first clamping platform 143 and the second clamping platform 144 can be respectively disposed on a sleeve portion 145 , and the first clamping platform 143 and the second clamping platform 144 extend away from each other.

[0096] The present application also provides a socket, such as Figure 8 As shown, the socket includes the switch mechanism as above.

[0097] In one example, the housing of the socket may be provided with an escape hole, and the switch member 8 in the switch mechanism may be exposed from the escape hole. Furthermore, the switch member 8 may expose the light guide column 71 in the light guide member 7 to serve as an indicator light of the socket.

[0098] In the description of the present disclosure, it should be understood that the terms (if any) "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0099] Unless otherwise clearly specified and limited, the terms (if any) "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0100] In addition, the terms "first" and "second", if any, are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0101] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0102] In the description of this specification, reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0103] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A switch mechanism, characterized in that: The switch mechanism comprises a mounting housing (1), a stationary contact piece (2) and a movable contact piece (3); The stationary contact piece (2) has a stationary contact point (21), the moving contact piece (3) has a moving contact point (31), and the stationary contact point (21) and the moving contact point (31) are accommodated in an inner cavity (11) of the mounting housing (1); The mounting housing (1) is provided with an air inlet (12) and an air outlet (13), the air inlet (12) and the air outlet (13) are respectively located on opposite sides of the moving contact (31), the air inlet (12) and the air outlet (13) are communicated with each other, and are communicated with a gap when the moving contact (31) and the static contact (21) are separated.

2. The switch mechanism according to claim 1, characterized in that: The opening direction of the air inlet (12) is parallel to the contact direction between the static contact (21) and the moving contact (31); and / or, The opening direction of the air outlet (13) intersects with the contact direction.

3. The switch mechanism according to claim 1, characterized in that: The moving contact (31) and the static contact (21) are respectively located on the air flow path between the air inlet (12) and the air outlet (13), wherein: The orthographic projections of the air inlet (12) and the air outlet (13) on a setting plane are respectively at least partially located on different sides of a setting straight line, wherein the setting plane is parallel to the contact direction of the static contact (21) and the movable contact (31), and the setting straight line passes through the center of the orthographic projection of the static contact (21) on the setting plane and the center of the orthographic projection of the movable contact (31) on the setting plane.

4. The switch mechanism according to claim 1, characterized in that: The mounting housing (1) comprises a cover (14) and a base (15); The housing (14) comprises a top wall (141) and two side walls (142) arranged opposite to each other along a first direction, the top wall (141) is connected to the two side walls (142) respectively, and the sides of the two side walls (142) away from the top wall (141) overlap with the base (15) to enclose the inner cavity (11); The air inlet (12) is opened on the top wall (141), and is opened along a second direction between the two side walls (142) on the first side of the housing (14) to form the air outlet (13); The first direction is parallel to a lap plane (151) between the cover shell (14) and the base (15), and the second direction is perpendicular to the first direction and parallel to the lap plane (151).

5. The switch mechanism according to claim 4, characterized in that: The housing (14) further comprises a first clamping platform (143), the first clamping platform (143) being located on the first side of the housing (14) and having two ends respectively connected to the two side walls (142), the first clamping platform (143) being spaced apart from the overlapping plane (151); The base (15) has a first hook (152), the first hook (152) protrudes from the overlapping plane (151) and is engaged with the first clamping platform (143), and the first hook (152) is spaced from the adjacent side wall (142) along at least one side edge of the first direction.

6. The switch mechanism according to claim 4, characterized in that: The housing (14) further comprises a second card platform (144), the second card platform (144) being located on a second side of the housing (14) and having two ends respectively connected to the two side walls (142), the second card platform (144) being spaced apart from the top wall (141), and the space between the second card platform (144) and the top wall (141) being connected to the air inlet (12), and the first side and the second side being opposite to each other; The base (15) also has a second hook (153), and the second hook (153) is engaged with the second clamping platform (144).

7. The switch mechanism according to any one of claims 1 to 6, characterized in that: The switch mechanism further comprises an electrode contact piece (4), wherein the electrode contact piece (4) is located on a side of the static contact (21) close to the air outlet (13), and in a contact direction between the static contact (21) and the movable contact (31), the electrode contact piece (4) is located on a side of the static contact (21) away from the movable contact (31).

8. The switch mechanism according to claim 7, characterized in that: The inner side of the installation housing (1) has a first limiting retaining wall (154) and a second limiting retaining wall (155) arranged opposite to each other, and the electrode contact sheet (4) is limited between the first limiting retaining wall (154) and the second limiting retaining wall (155); The first limiting retaining wall (154) overlaps the stationary contact piece (2) on a side away from the electrode contact piece (4), and in the direction from the stationary contact point (21) to the moving contact point (31), the first limiting retaining wall (154) is not higher than the stationary contact piece (2).

9. The switch mechanism according to any one of claims 1 to 6, characterized in that: The switch mechanism further comprises a circuit board (5) and a pair of conductive springs (6), wherein the pair of conductive springs (6) are respectively against the circuit board (5) and are used to connect the circuit board (5) to the circuit. At least one of the conductive springs (6) comprises a first spring coil (61) and a second spring coil (62), the inner diameter of the first spring coil (61) is smaller than the inner diameter of the second spring coil (62), the first spring coil (61) abuts against the circuit board (5), and the second spring coil (62) is located on a side of the first spring coil (61) away from the circuit board (5).

10. The switch mechanism according to claim 9, characterized in that: The mounting shell (1) has a pair of sleeve portions (145), each of the sleeve portions (145) contains a conductive spring (6), and a side edge of the sleeve portion (145) close to the circuit board (5) is flush with a top surface (146) of the mounting shell (1), and the top surface (146) is parallel to the circuit board (5) and at least partially surrounds the peripheral edge of the sleeve portion (145).

11. A socket, characterized in that: The socket comprises a switch mechanism as claimed in any one of claims 1 to 10.

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