CN114664602A

CN114664602A - Relay socket

Info

Publication number: CN114664602A
Application number: CN202210226028.1A
Authority: CN
Inventors: 黄贤权; 姜祥东; 王友荣; 李兴德
Original assignee: Shenle Co ltd
Current assignee: Shenle Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-06-24

Abstract

The invention provides a relay socket which comprises a shell formed by connecting a base and an upper cover, wherein a circuit board and an ejection piece which is at least partially positioned outside the shell and used for ejecting a relay are arranged in the shell; the ejection part is at least partially a light-transmitting part made of a light-transmitting material, and the light-transmitting part is at least partially positioned in the first through hole and/or at least partially positioned outside the first through hole; the light emitted by the indicating light-emitting component can be transmitted to the outside of the shell through the light-transmitting component. The indicating luminous piece is arranged in the shell, at least part of the ejecting piece is made of the light-transmitting material, the original ejecting piece is used for light to transmit, additional parts and assembling procedures are not needed to be added, the indicating luminous piece can be protected, the electric connection structure between the indicating luminous piece and the circuit board is prevented from being damaged, and the structure is simpler.

Description

Relay socket

Technical Field

The invention provides a relay socket.

Background

Patent CN201621031556.8 discloses a relay socket, it includes base and apron, is provided with the circuit board in the base, and emitting diode welded fastening is on the circuit board to be fixed in the left side top of base, play information interaction's effect, there is following problem in this kind of structure: the light emitting diode is positioned at the top of the left side of the base and is easy to be touched, and the welding structure between the light emitting diode and the circuit board is damaged, so that the light emitting diode fails.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provide a relay socket.

The technical scheme adopted by the invention is as follows: a relay socket comprises a shell formed by connecting a base and an upper cover, wherein a circuit board and an ejecting piece which is at least partially positioned outside the shell and used for ejecting a relay are arranged in the shell, an indicating and luminous piece is connected onto the circuit board, and a first through hole is formed in the shell; the ejection part is at least partially a light-transmitting part made of a light-transmitting material, and the light-transmitting part is at least partially positioned in the first through hole and/or at least partially positioned outside the first through hole; the light emitted by the indicating light-emitting component can be transmitted to the outside of the shell through the light-transmitting component.

The ejection part comprises an installation main body positioned in the shell, hinge columns positioned on two sides of the installation main body, an ejection part positioned on the installation main body and used for ejecting the relay, and a rotating part positioned at the upper end of the installation main body and extending out of the first through hole, hinge holes matched with the hinge columns are correspondingly arranged on two side walls of the shell, and a second through hole through which the ejection part passes to eject the relay is arranged on the shell; the rotating part is provided with a limiting lug for fixing the relay and an arc-shaped clamping block for clamping the outer side wall of the shell.

A mark plate is arranged on the outer end face of the rotating part; be equipped with the tablet mounting groove of marking on the outer terminal surface of rotation portion, tablet mounting groove both sides inner wall is equipped with the spacing spout of tablet, the spacing spout one side of tablet or both sides inner wall are equipped with the opening that supplies the tablet to install to the spacing spout of tablet.

The indicating luminous piece is a light emitting diode, the indicating luminous piece is welded and fixed on the circuit board, and the ejecting piece is integrally formed by a light-transmitting material; the luminous end of the indication luminous piece is attached to the ejection piece or arranged adjacent to the ejection piece.

The base is provided with a circuit board and a plurality of conducting strips which are electrically connected with the circuit board, and the conducting strips are provided with at least one connecting terminal; the circuit board is provided with at least one slot, the conducting plate connected with the circuit board is provided with pins which are matched with the slot in an inserting way, and the at least one conducting plate and the slot are mutually attached to form electric connection.

Pins are arranged on a plurality of conductive sheets which are electrically connected with the circuit board, and the number of slots arranged on the circuit board at least corresponds to the number of the conductive sheets which are electrically connected with the circuit board; the base is provided with a limiting structure for limiting the conducting plate connected with the circuit board, and the conducting plate connected with the circuit board is fixed relative to the base; the conducting strip connected with the circuit board is attached to the inner wall of the base, and the circuit board is superposed on the conducting strip connected with the circuit board.

The limiting structure of the base comprises a plurality of first protruding limiting columns located on the inner wall of the base, and at least one limiting hole or limiting groove in plug-in fit with the first limiting columns is formed in the conductive sheet connected with the circuit board.

The plurality of conducting strips electrically connected with the circuit board comprise a first conducting strip, a second conducting strip, a third conducting strip and a fourth conducting strip, wherein the first conducting strip is electrically connected with a first clamping spring, the second conducting strip is electrically connected with a second clamping spring, the third conducting strip is electrically connected with a first inserting sheet and a first connecting sheet, the fourth conducting strip is electrically connected with a second inserting sheet and a second connecting sheet, the base is respectively provided with an inserting hole corresponding to the first clamping spring, the second clamping spring, the first inserting sheet and the second inserting sheet, and the base is respectively provided with a wiring hole corresponding to the first connecting sheet and the second connecting sheet; the first clamp spring and the first conducting strip are integrated; the second conducting plate and the second clamping spring are integrated; the third conducting strip, the first inserting sheet and the first connecting sheet are integrated; the fourth conducting strip, the second inserting sheet and the second connecting sheet are integrated.

The base is integrally provided with a guide rail limiting clamping block and a self-locking buckle, the base is provided with a guide rail mounting groove, at least part of the locking buckle has certain elasticity, so that the locking buckle can swing relative to the part fixedly connected with the base to enable the locking buckle to have an unlocking position and a locking position, and at least part of the guide rail limiting clamping block protrudes relative to the side wall of the guide rail mounting groove and is used for limiting a guide rail mounted in the guide rail mounting groove; when the locking buckle is located at the locking position, the protrusion of the locking buckle relative to the side wall of the guide rail installation groove is used for limiting the guide rail installed in the guide rail installation groove, and the locking buckle can be pushed to move to a position far away from the guide rail installation groove so as to be located at the unlocking position; an elastic piece is arranged between the locking buckle and the base, and the elastic piece pushes the locking buckle to enable the locking buckle to keep a locking position.

The base is provided with a spring limiting groove, the elastic piece is a compression spring, the elastic piece is arranged in the spring limiting groove, and two ends of the elastic piece are respectively abutted against the bottom of the spring limiting groove and the locking buckle; the spring limiting groove is provided with an installation opening close to one side of the upper cover and used for placing the elastic part, and the upper cover seals the installation opening to limit the elastic part.

The invention has the following beneficial effects: the indicating luminous piece is arranged in the shell, at least part of the ejecting piece is made of the light-transmitting material, the original ejecting piece is used for light to transmit, additional parts and assembling procedures are not needed to be added, the indicating luminous piece can be protected, the electric connection structure between the indicating luminous piece and the circuit board is prevented from being damaged, and the structure is simpler.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic illustration of an explosive structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the inner part and the base of one embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a base according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a circuit board according to an embodiment of the present invention;

FIG. 6 is a schematic view of the ejector member in one embodiment of the invention;

FIG. 7 is a schematic view of a portion of a strap connected to a circuit board according to an embodiment of the present invention;

FIG. 8 is a schematic view of a portion of a strap not connected to a circuit board according to an embodiment of the present invention;

FIG. 9 is a partial cross-sectional view of one embodiment of the present invention;

FIG. 10 is an enlarged view of portion A of FIG. 9;

FIG. 11 is an enlarged view of portion B of FIG. 9;

FIG. 12 is a schematic view of a partial structure of a base according to an embodiment of the present invention;

in the figure, 1, a base; 101, a first limit column; 102, a second limit column; 103, inserting holes; 104, a first via; 105, a second via; 106, spring limiting grooves; 2, a cover plate; 3, a circuit board; 301, a slot; 302, indicating a light emitting member; 4, pins; 5, a first conductive sheet; 501, a first clamp spring; 6, a second conductive sheet; 601, a second clamp spring; 7, a third conductive sheet; 701, a first plug sheet; 702, a first connecting piece; 8, a fourth conductive sheet; 801, a second patch; 802, a second connecting sheet; 9, a fifth conductive sheet; 901, a fifth clamping spring; 902, a fifth connecting sheet; 903, a wire; 10, a sixth conductive sheet; 1001, a sixth clamping spring; 1002, a sixth connecting sheet; 1003, a sixth patch; 11, a seventh conductive sheet; 1101, a seventh clamp spring; 1102, a seventh connecting sheet; 1103, a seventh patch; 12, ejecting the piece; 1201, mounting the main body; 1202, a hinged column; 1203, an ejection part; 1204, a limit bump; 1205, an arc-shaped clamping block; 1206, a sign mounting groove; 1207, a marker board limiting sliding groove; 1208, a rotating part; 13, marking cards; 14, a guide rail limiting clamping block; 1401, an outer ramp; 15, locking the buckle; 1501, a spring limit post; 16, a guide rail mounting groove; 17, an elastic member; 18, a boss; 1801, smooth convex surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, which are not described in any more detail in the following embodiments.

The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.

As shown in fig. 1-3, a relay socket convenient for assembly includes a base 1 and a cover plate 2 connected to form a housing, wherein the base 1 is provided with a circuit board 3 and is electrically connected with the circuit board 3 by a first conductive sheet 5, a second conductive sheet 6, a third conductive sheet 7 and a fourth conductive sheet 8, and the base 1 is provided with a fifth conductive sheet 9, a sixth conductive sheet 10 and a seventh conductive sheet 11.

As shown in fig. 7, the first conductive sheet 5 is electrically connected to a first clamp spring 501, the second conductive sheet 6 is electrically connected to a second clamp spring 601, the third conductive sheet 7 is electrically connected to a first plug tab 701 and a first connecting tab 702, and the fourth conductive sheet 8 is electrically connected to a second plug tab 801 and a second connecting tab 802. As shown in fig. 8, a fifth clamping spring 901 and a fifth connecting piece 902 are electrically connected to the fifth conducting strip 9, a sixth clamping spring 1001, a sixth connecting piece 1002 and a sixth plugging piece 1003 are electrically connected to the sixth conducting strip 10, and a seventh clamping spring 1101, a seventh connecting piece 1102 and a seventh plugging piece 1103 are electrically connected to the seventh conducting strip 11. The base 1 is provided with an insertion hole 103 for inserting a relay pin corresponding to the first clamp spring 501, the second clamp spring 601, the fifth clamp spring 901, the sixth clamp spring 1001, and the seventh clamp spring 1101, and is located on the same sidewall.

The casing is connected with an ejection part 12 which is at least partially positioned outside the casing and used for ejecting the relay, and at least part of the ejection part 12 is a light-transmitting part made of light-transmitting materials; the shell is provided with a first through hole 104, and the light-transmitting part is positioned in the first through hole 104 and/or outside the first through hole 104; an indication luminous element 302 is connected to the circuit board 3, and light emitted by the indication luminous element 302 can be transmitted to the outside of the shell through a light-transmitting element.

That is, the ejector 12 in the present embodiment is used for manually operating the ejector relay, and also serves as an optical path element of the indicator light-emitting member 302, so that the light emitted from the indicator light-emitting member 302 is projected to the outside of the housing. In this embodiment, the ejecting member 12 is integrally injection-molded by a transparent material, or a part of the ejecting member 12 is integrally injection-molded by a transparent material, as long as the light emitted by the indicating light-emitting member 302 can be transmitted to the outside of the housing through the ejecting member 12, the manufacturing process is relatively complicated, and the cost is higher.

In this embodiment, the ejector 12 is hinged to the housing, and the ejector 12 can rotate relative to the housing to eject the relay through a portion of the ejector 12 located outside the housing.

As shown in fig. 6, the ejector 12 includes a mounting body 1201 located in a housing, hinge posts 1202 located on two sides of the mounting body 1201, an ejector 1203 located on the mounting body 1201 and used for ejecting the relay, and a rotating portion 1208 located at the upper end of the mounting body 1201 and extending out of the first through hole 104, hinge holes 105 matched with the hinge posts 1202 are correspondingly formed in two side walls of the housing, and a second through hole 105 through which the ejector 1203 passes to eject the relay is formed in the housing. As shown in fig. 3, rotating the rotating portion 1208 of the ejector 12 can rotate the ejector 12 about the hinge post 1202, such that the ejector 1203 passes through the second through hole 105 to eject the relay. The ejector 12 may also be driven, for example, by pushing or pulling.

As shown in fig. 6, a limiting projection 1204 for fixing the relay and an arc-shaped fixture block 1205 for clamping the outer sidewall of the housing are arranged on the rotating part 1208. As shown in fig. 3, the arc-shaped block 1205 abuts against the outer sidewall of the housing, and the ejector 12 will not rotate in the absence of external force, and under the action of a certain external force, the arc-shaped block 1205 can slide over the outer sidewall of the housing to rotate the ejector 12.

And a mark plate 13 is arranged on the outer end face of the rotating part 1208.

Be equipped with mark tablet mounting groove 1206 on the outer terminal surface of rotation portion 1208, mark tablet mounting groove 1206 both sides inner wall is equipped with the spacing spout 1207 of mark tablet, the spacing spout 1207 one side of mark tablet or both sides inner wall are equipped with the opening that supplies mark tablet 13 to install to the spacing spout 1207 of mark tablet. Tag 13 is removably attached to rotating portion 1208 to facilitate replacement of tag 13.

In this embodiment, the indicating light emitting element 302 is a light emitting diode, the indicating light emitting element 302 is fixed on the circuit board 3 by welding, and the ejecting element 12 is formed by integrally molding a transparent material; the light-emitting end of the indicating light-emitting member 302 is disposed to be adjacent to the ejector member 12 or adjacent to the ejector member 12.

Furthermore, four slots 301 are formed in the circuit board 3, the first conducting plate 5, the second conducting plate 6, the third conducting plate 7 and the fourth conducting plate 8 are respectively provided with a pin 4, the pin 4 is inserted into the slot 301, so that the circuit board 3 is connected with the first conducting plate 5, the second conducting plate 6, the third conducting plate 7 and the fourth conducting plate 8, and the first conducting plate 5, the second conducting plate 6, the third conducting plate 7 and the fourth conducting plate 8 are respectively attached to the conducting circuit portion on the circuit board 3 to form an electric connection.

Furthermore, the base 1 is provided with a limiting structure for limiting the conducting strip connected with the circuit board 3, and the conducting strip connected with the circuit board 3 is fixed relative to the base 1. The limit structure of the base 1 comprises a plurality of first convex limit columns 101 located on the inner wall of the base 1, at least one limit hole or limit groove matched with the first limit columns 101 in an inserting mode is formed in a conducting strip connected with the circuit board 3, and the conducting strip is thinner in the embodiment, so that the first limit columns 101 are matched with the first limit columns 101 in an inserting mode and are through holes. In addition, base 1's limit structure still includes the spacing groove, generally all is equipped with on the current relay socket of this part of structure, does not do specifically explain, and the spacing hole or the spacing groove that first spacing post 101 corresponds are add to this embodiment on current limit structure's basis, can improve the stability after the installation.

The conducting strip connected with the circuit board 3 is attached to the inner wall of the base 1, and the circuit board 3 is superposed on the conducting strip connected with the circuit board 3.

Further, as shown in fig. 7, the first clamp spring 501 is integrated with the first conductive sheet 5; the second conducting strip 6 is integrated with the second clamping spring 601; the third conductive sheet 7, the first inserting sheet 701 and the first connecting sheet 702 are integrated; the fourth conductive sheet 8, the second connection piece 801 and the second connection piece 802 are integrated.

The base 1 is provided with a fifth mounting groove 109, a sixth mounting groove 1010 and a seventh mounting groove 1011 which are used for mounting the fifth conducting strip 9, the sixth conducting strip 10 and the seventh conducting strip 11 respectively to form spacing, the bottoms of the fifth mounting groove 109, the sixth mounting groove 1010 and the seventh mounting groove 1011 are provided with at least one raised second limiting column 102, and the fifth conducting strip 9, the sixth conducting strip 10 and the seventh conducting strip 11 are provided with limiting holes or limiting grooves which are used for connecting the second limiting columns 102 in the corresponding mounting grooves. In the present embodiment, the conductive plate is thinner, and thus, the conductive plate is inserted into the second position-limiting post 102 to form a through hole.

As shown in fig. 8, the fifth conductive sheet 9 is integrally formed with the fifth clamp spring 901, and the additional wire 903 is electrically connected between the fifth conductive sheet 9 and the fifth connecting piece 902; the sixth conducting strip 10 is integrally formed with a sixth clamping spring 1001, a sixth connecting strip 1002 and a sixth splicing strip 1003; the seventh conductive plate 11 is integrally formed with the seventh clamping spring 1101, the seventh connecting plate 1102 and the seventh plugging plate 1103.

During this embodiment equipment, corresponding conducting strip is placed one by one to the corresponding position on base 1 now, then places circuit board 3, then carries out the equipment of apron 2, and whole journey can adopt the automatic equipment of manipulator, need not welding process.

The guide rail limiting clamping block 14 is fixedly arranged on the shell, the locking buckle 15 is arranged on the shell, the guide rail mounting groove 16 is formed in the shell, and at least part of the guide rail limiting clamping block 14 protrudes relative to the side wall of the guide rail mounting groove 16 and is used for limiting a guide rail mounted in the guide rail mounting groove 16; as shown in fig. 10, the locking buckle 15 is fixedly connected with the housing, and at least a part of the locking buckle 15 has a certain elasticity, so that the locking buckle 15 can swing relative to the part fixedly connected with the housing to have an unlocking position and a locking position. In the prior art, the conventional locking buckle 15 is an independent part and is assembled on the shell through a complex structure, and the locking buckle can slide relative to the shell to realize switching between a locking position and an unlocking position, so that the structure is complex. This embodiment simple structure reduces manufacturing cost.

As shown in fig. 10, an elastic member 17 is disposed between the locking buckle 15 and the housing, and the elastic member 17 pushes the locking buckle 15 in the direction of the guide rail limiting latch 14. It is also possible to make the locking catch 15 itself shape-retaining in the locking position and then push the locking catch 15 by external force and return to the locking position under the elastic action of the locking catch 15 itself, but it is longer and more reliable in relation to the service life by the additional elastic member 17.

The locking buckle 15 and the base 1 are integrally formed. In this embodiment, the base 1 and the upper cover 2 are specifically in a snap connection, and may also be fastened by a bolt connection. In this embodiment, set up locking buckle 15 and base 1 into integrated into one piece, the processing of being convenient for. The locking buckle 15 and the base 1 can be respectively molded, and then the locking buckle 15 and the base are connected and fixed by welding, bonding or arranging a clamping assembly structure, wherein the part of the locking buckle fixedly connected with the shell is the part of the locking buckle which is relatively not movable with the shell.

As shown in fig. 12, a spring limiting groove 106 is formed in the base 1, the elastic member 17 is a compression spring, the elastic member 17 is disposed in the spring limiting groove 106, and two ends of the elastic member 17 are respectively abutted against the bottom of the spring limiting groove 106 and the locking buckle 15.

The part of the locking buckle 15, which is abutted against the elastic part 17, is provided with a raised spring limiting column 1501 which is positioned in the elastic part 17.

The spring limiting groove 106 is provided with an installation opening close to one side of the upper cover 2 for placing the elastic element 17, and the upper cover 2 closes the installation opening to limit the elastic element 17. This facilitates the assembly of the elastic member 17.

As shown in fig. 9, a boss 18 is provided at the bottom of the rail mounting groove 16 near the rail spacing block 14. The guide rail mounting groove 16 of the embodiment can be adapted to guide rails with various thickness specifications, the limiting thickness of the guide rail mounting groove is slightly larger, and for a thinner guide rail, the guide rail can be slightly inclined through the boss so as to limit the guide rail and avoid the guide rail from loosening; for a thicker guide rail, the edges of the two sides of the guide rail can still be limited between the guide rail limiting clamping block and the guide rail mounting groove bottom plate and between the locking buckle and the guide rail mounting groove bottom plate.

The boss 18 includes a smooth convex curved surface 1801 near one side of the locking buckle 15 and extending to the highest point of the boss 18 relative to the bottom of the rail mounting groove 16. The provision of the smooth convex curved surface 1801 reduces installation resistance and wear on the guide rail. The bottom surface of the rail limiting clamping block 14 close to the bottom of the rail mounting groove 16 is an outer inclined surface 1401.

As shown in fig. 11, a height a of the portion of the rail-limiting latch 14 protruding from the side wall of the rail-mounting groove 16 with respect to the lowest point of the bottom of the rail-mounting groove 16 is higher than a height b of the highest point of the projection 18 with respect to the bottom of the locking rail-mounting groove 16; the distance c from the highest point of the boss 18 relative to the bottom of the locking guide rail installation groove 16 to the side wall of the guide rail installation groove 16 is greater than the width d of the protruding part of the guide rail limiting clamping block 14 relative to the side wall of the guide rail installation groove 16.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. The utility model provides a relay socket, includes the casing of constituteing by base and upper cover link to each other, be equipped with the circuit board in the casing and at least part be located the outer ejecting piece that is used for ejecting relay of casing, be connected with the instruction illuminating part on the circuit board, its characterized in that: the shell is provided with a first through hole; the ejection part is at least partially a light-transmitting part made of a light-transmitting material, and the light-transmitting part is at least partially positioned in the first through hole and/or at least partially positioned outside the first through hole; the light emitted by the indicating light-emitting component can be transmitted to the outside of the shell through the light-transmitting component.

2. The relay socket according to claim 1, wherein: the ejection piece comprises a mounting main body positioned in the shell, hinge columns positioned on two sides of the mounting main body, an ejection part positioned on the mounting main body and used for ejecting the relay, and a rotating part positioned at the upper end of the mounting main body and extending out of the first through hole, hinge holes matched with the hinge columns are correspondingly formed in two side walls of the shell, and a second through hole through which the ejection part passes to eject the relay is formed in the shell; the rotating part is provided with a limiting lug for fixing the relay and an arc-shaped clamping block for clamping the outer side wall of the shell.

3. The relay socket according to claim 2, wherein: a mark plate is arranged on the outer end face of the rotating part; be equipped with the tablet mounting groove of marking on the outer terminal surface of rotation portion, tablet mounting groove both sides inner wall is equipped with the spacing spout of tablet, the spacing spout one side of tablet or both sides inner wall are equipped with the opening that supplies the tablet to install to the spacing spout of tablet.

4. The relay socket according to any one of claims 1 to 3, wherein: the indicating luminous piece is a light emitting diode, the indicating luminous piece is welded and fixed on the circuit board, and the ejecting piece is integrally formed by a light-transmitting material; the luminous end of the indication luminous piece is attached to the ejection piece or arranged adjacent to the ejection piece.

5. The relay socket according to claim 1, wherein: the base is provided with a circuit board and a plurality of conducting strips which are electrically connected with the circuit board, and the conducting strips are provided with at least one connecting terminal; the circuit board is provided with at least one slot, the conducting plate connected with the circuit board is provided with pins which are matched with the slot in an inserting way, and the at least one conducting plate and the slot are mutually attached to form electric connection.

6. The relay socket according to claim 5, wherein: pins are arranged on a plurality of conductive sheets which are electrically connected with the circuit board, and the number of slots arranged on the circuit board at least corresponds to the number of the conductive sheets which are electrically connected with the circuit board; the base is provided with a limiting structure for limiting the conducting plate connected with the circuit board, and the conducting plate connected with the circuit board is fixed relative to the base; the conducting strip connected with the circuit board is attached to the inner wall of the base, and the circuit board is superposed on the conducting strip connected with the circuit board.

7. The relay socket according to claim 6, wherein: the limiting structure of the base comprises a plurality of first protruding limiting columns located on the inner wall of the base, and at least one limiting hole or a limiting groove matched with the first limiting columns in an inserted mode is formed in each conducting strip connected with the circuit board.

8. The relay socket according to any one of claims 1 to 7, wherein: the base is provided with a plurality of conducting strips which are electrically connected with the circuit board, wherein the plurality of conducting strips which are electrically connected with the circuit board comprise a first conducting strip, a second conducting strip, a third conducting strip and a fourth conducting strip, the first conducting strip is electrically connected with a first clamping spring, the second conducting strip is electrically connected with a second clamping spring, the third conducting strip is electrically connected with a first inserting sheet and a first connecting sheet, the fourth conducting strip is electrically connected with a second inserting sheet and a second connecting sheet, and the base is respectively provided with an inserting hole corresponding to the first clamping spring, the second clamping spring, the first inserting sheet and the second inserting sheet and a wiring hole corresponding to the first connecting sheet and the second connecting sheet; the first clamp spring and the first conducting strip are integrated; the second conducting plate and the second clamping spring are integrated; the third conducting strip, the first inserting sheet and the first connecting sheet are integrated; the fourth conducting strip, the second inserting sheet and the second connecting sheet are integrated.

9. The relay socket according to claim 1, wherein: the base is integrally provided with a guide rail limiting clamping block and a self-locking buckle, the base is provided with a guide rail mounting groove, at least part of the locking buckle has certain elasticity, so that the locking buckle can swing relative to the part fixedly connected with the base to enable the locking buckle to have an unlocking position and a locking position, and at least part of the guide rail limiting clamping block protrudes relative to the side wall of the guide rail mounting groove and is used for limiting a guide rail mounted in the guide rail mounting groove; when the locking buckle is located at the locking position, the protrusion of the locking buckle relative to the side wall of the guide rail installation groove is used for limiting the guide rail installed in the guide rail installation groove, and the locking buckle can be pushed to move to a position far away from the guide rail installation groove so as to be located at the unlocking position; an elastic piece is arranged between the locking buckle and the base, and the elastic piece pushes the locking buckle to keep the locking buckle at a locking position.

10. The relay socket according to claim 9, wherein: the base is provided with a spring limiting groove, the elastic piece is a compression spring, the elastic piece is arranged in the spring limiting groove, and two ends of the elastic piece are respectively abutted against the bottom of the spring limiting groove and the locking buckle; the spring limiting groove is provided with an installation opening which is close to one side of the upper cover and used for placing the elastic piece, and the upper cover seals the installation opening and limits the elastic piece.