CN107768198B - DC relay with sampling signal pin - Google Patents
DC relay with sampling signal pin Download PDFInfo
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- CN107768198B CN107768198B CN201710742751.4A CN201710742751A CN107768198B CN 107768198 B CN107768198 B CN 107768198B CN 201710742751 A CN201710742751 A CN 201710742751A CN 107768198 B CN107768198 B CN 107768198B
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Abstract
The invention discloses a direct current relay with a sampling signal pin, which comprises two static spring leading-out ends and a shell; the two static spring leading-out ends are respectively fixed on the shell, the upper parts of the two static spring leading-out ends are respectively exposed outside the shell and are used for being connected with a corresponding external circuit, and the lower parts of the two static spring leading-out ends are respectively accommodated in the shell and are used for being matched with a movable spring component of the relay; the direct current relay further comprises a sampling signal pin, one end of the sampling signal pin is used as a signal incoming end and connected with one of the two static spring leading-out ends, and the other end of the sampling signal pin is used as a signal leading-out end and fixed on the shell. The invention has the characteristics of simple structure, easy operation and high connection reliability.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a direct-current relay with a sampling signal pin.
Background
A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.
The dc relay is one of the relays, and the existing dc relay includes two stationary spring terminals, a housing, a movable spring assembly, and other components, the two stationary spring terminals are respectively fixed on the housing, the upper portion of the stationary spring terminal is exposed outside the housing for connecting with external electronic components, such as connecting loads, and the lower portion of the stationary spring terminal is accommodated in the housing, the bottom end of the stationary spring terminal is usually provided with a stationary contact for matching with the movable spring assembly, when two movable contacts of the movable spring component are respectively contacted with the fixed contacts of the two fixed spring leading-out ends, the direct current relay is connected to provide an electric signal for an external electronic component (such as a load), when two movable contacts of the movable spring assembly are respectively separated from corresponding fixed contacts of the two fixed spring leading-out ends, the direct current relay breaks off an electric signal provided to an external electronic component (such as a load).
The direct current relay in the prior art has no precedent for arranging a sampling signal pin on a static spring leading-out end, and how to make the arrangement of the sampling signal pin simple, reliable and easy to implement is a technical problem which needs to be solved urgently by a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the direct current relay with the sampling signal pin, which has the characteristics of simple structure, easy operation and high connection reliability.
The technical scheme adopted by the invention for solving the technical problems is as follows: a DC relay with sampling signal pin comprises two static spring leading-out terminals and a shell; the two static spring leading-out ends are respectively fixed on the shell, the upper parts of the two static spring leading-out ends are respectively exposed outside the shell and are used for being connected with a corresponding external circuit, and the lower parts of the two static spring leading-out ends are respectively accommodated in the shell and are used for being matched with a movable spring component of the relay; the direct current relay further comprises a sampling signal pin, one end of the sampling signal pin is used as a signal incoming end and connected with one of the two static spring leading-out ends, and the other end of the sampling signal pin is used as a signal leading-out end and fixed on the shell.
And a settlement surface is arranged at the joint of one of the static spring leading-out ends and one end of the sampling signal pin, and one end of the sampling signal pin is lapped on the settlement surface of the static spring leading-out end.
The thickness dimension of subsiding of the subsidence face of quiet spring terminal of drawing forth is the same with the thickness dimension of sampling signal foot for the sampling signal foot is taken behind the subsidence face of quiet spring terminal of drawing forth, and is the same with the original height dimension of quiet spring terminal of drawing forth.
One of the static spring leading-out ends is of a cylindrical structure, an annular step is arranged at the upper part of the static spring leading-out end, the settlement surface is annularly arranged at the step, and one end of the sampling signal pin is of an annular structure and matched with the annular settlement surface.
One end of the sampling signal pin is connected and fixed with one of the static spring leading-out ends in a laser welding mode.
And one of the static spring leading-out ends is a static spring leading-out end which is used for being connected with a load in the two static spring leading-out ends.
The other end of the sampling signal pin is fixed at the position close to the edge of the shell, and the sampling signal pin is bent downwards from the connecting position of the sampling signal pin and the one of the static spring leading-out ends and extends to the other end along the surface of the shell.
The surface of the shell is provided with a groove for embedding the corresponding part of the sampling signal pin.
The lower part of the other end of the sampling signal pin is provided with an inserting piece, and the inserting piece of the sampling signal pin penetrates through the shell wall of the shell and then is bent and attached to the inner wall of the shell, so that the other end of the sampling signal pin is fixed on the shell.
The lower part of the other end of the sampling signal pin is provided with two insertion pieces, and the two insertion pieces of the sampling signal pin penetrate through the shell wall of the shell and are bent in opposite directions to be attached to the inner wall of the shell.
The inner wall of the shell is also integrally provided with a retaining wall at the periphery of the position corresponding to the inserting piece so as to isolate the inserting piece from the relay magnetic circuit part in the shell.
And an enclosing wall which surrounds the other end of the sampling signal pin in an annular shape is also arranged at the fixed position corresponding to the other end of the sampling signal pin on the shell.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the additional sampling signal pin, one end of the sampling signal pin is used as a signal access end and is connected with one of the two static spring leading-out ends, and the other end of the sampling signal pin is used as a signal leading-out end and is fixed on the shell, thereby realizing the sampling of strong current (i.e. an electric signal passing through a dynamic contact and a static contact and also an electric signal provided for a load) signals and having the characteristics of simple structure and easy operation.
2. The invention adopts the laser welding mode to connect one end of the sampling signal pin with one of the static spring leading-out ends (namely the load leading-out end), thereby having the characteristic of high connection reliability.
3. The invention adopts the technical scheme that in the static spring leading-out end (namely the load leading-out end), a settlement surface is arranged at the joint of one end of the sampling signal pin and one end of the sampling signal pin is lapped on the settlement surface of the static spring leading-out end. According to the structure, the sinking small section of plane is arranged at the leading-out end, so that the original installation of the copper bar of a customer is not influenced after the sampling signal pin is installed.
4. The invention adopts the structure that the sampling signal pin is bent downwards from the connection part of the leading-out end of one static spring and extends to the other end along the surface of the shell, so that the sampling signal pin is led out from the surface of the shell, the distance between the sampling signal pin and the internal cavity is furthest pulled, and the creepage distance of strong current (i.e. the electric signal passing through the dynamic and static contacts) and weak current (i.e. the electric signal provided for the coil) is improved.
5. The invention adopts the structure that the lower part of the other end of the sampling signal pin is provided with two inserting pieces, and the two inserting pieces of the sampling signal pin penetrate through the shell wall of the shell and then are bent in opposite directions to be attached to the inner wall of the shell. According to the structure, after the two reverse leading-out pins are inserted into the shell, the two reverse leading-out pins are bent towards two sides to form a 90-degree right angle, so that the fixing and external force plugging and pulling-out preventing effects are achieved.
6. The invention adopts the inner wall of the shell, the periphery of the position corresponding to the insert is also integrally provided with a retaining wall, the shell (namely the outer wall of the shell) is also provided with a fence which surrounds the other end of the sampling signal pin in an annular shape at the fixed position corresponding to the other end of the sampling signal pin. The structure of the invention ensures that plastic enclosing walls are grown around the sampling signal pins for isolation, thereby improving the creepage distance of strong and weak electricity.
The invention is further explained in detail with the accompanying drawings and the embodiments; however, the dc relay with the sampling signal pin according to the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic structural view of the present invention according to an embodiment;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a sampling signal pin and a housing according to the present invention;
fig. 4 is a schematic diagram (turned at an angle) illustrating the fitting of the sampling signal pin and the housing according to the present invention.
Detailed Description
Examples
Referring to fig. 1 to 4, the dc relay with sampling signal pin of the present invention includes two static spring terminals 11, 12 and a housing 2; two static spring leading-out ends 11, 12 are fixed on the shell 2 respectively, the upper parts of the two static spring leading-out ends 11, 12 are exposed outside the shell respectively for connecting with a corresponding external circuit, the lower parts of the two static spring leading-out ends 11, 12 are accommodated in the shell respectively for matching with a movable spring component of the relay, namely the lower parts of the two static spring leading-out ends 11, 12 penetrate through the shell wall of the shell respectively and enter the shell; the direct current relay further comprises a sampling signal pin 3, one end 31 of the sampling signal pin 3 is used as a signal input end and is connected with one of the two static spring leading-out ends 12, and the other end 32 of the sampling signal pin 3 is used as a signal leading-out end and is fixed on the shell 2.
In this embodiment, a sinking surface 121 is provided at a connection point of the one of the stationary spring terminals 12 and the one end 31 of the sampling signal pin, and the one end 31 of the sampling signal pin is lapped on the sinking surface 121 of the stationary spring terminal.
In this embodiment, the sinking thickness of the sinking surface 121 of the static spring leading-out terminal is the same as the thickness of the sampling signal pin 3, so that the sampling signal pin 3 is the same as the original height of the static spring leading-out terminal after being lapped on the sinking surface 121 of the static spring leading-out terminal 12.
In this embodiment, the one of the static spring terminals 12 is a cylindrical structure, an annular step is disposed on the upper portion of the static spring terminal 12, the sinking surface 121 is annularly disposed at the step, and one end 31 of the sampling signal pin is an annular structure and is matched with the annular sinking surface 121.
In this embodiment, one end 31 of the sampling signal pin and the one of the static spring terminals 12 are connected and fixed by laser welding.
In this embodiment, the one of the stationary spring terminals 12 is a stationary spring terminal of two stationary spring terminals for connecting to a load.
In this embodiment, the other end 32 of the sampling signal pin is fixed at a position close to the edge of the housing 2, and the sampling signal pin 3 is bent downward from a connection position with the one of the static spring terminals and extends to the other end of the sampling signal pin 3 along the surface of the housing 2.
In this embodiment, the surface of the housing 2 is provided with a groove 21 for the corresponding portion of the sampling signal pin 3 to be inserted into.
In this embodiment, the lower portion of the other end 32 of the sampling signal pin 3 is provided with an insertion piece 321, and the insertion piece 321 of the sampling signal pin passes through the shell wall of the shell and then bends to be attached to the inner wall of the shell, so that the other end of the sampling signal pin is fixed on the shell 2.
In this embodiment, the lower portion of the other end 32 of the sampling signal pin is provided with two insertion pieces 321, and the two insertion pieces 321 of the sampling signal pin penetrate through the shell wall of the shell and then bend in opposite directions to be attached to the inner wall of the shell 2.
In this embodiment, a retaining wall 22 is integrally formed on the inner wall of the housing 2 at a position corresponding to the insert, so as to isolate the insert 321 from the magnetic circuit portion of the relay in the housing. The retaining wall 22 and the housing 2 are both made of plastic material.
In this embodiment, a surrounding wall 23 surrounding the other end of the sampling signal pin in a ring shape is further provided on the housing 2 (i.e., on the outer surface of the wall of the housing) at a fixed position corresponding to the other end 32 of the sampling signal pin. The enclosing wall 23 and the housing 2 are also integrally formed by plastic.
The invention relates to a direct current relay with a sampling signal pin, which is characterized in that a sampling signal pin 3 is additionally arranged, one end 31 of the sampling signal pin is used as a signal access end and connected with one static spring leading-out end 12 of two static spring leading-out ends, and the other end 32 of the sampling signal pin is used as a signal leading-out end and fixed on a shell 2, so that the sampling of strong current (namely, an electric signal passing through a dynamic and static contact and an electric signal provided for a load) signals can be realized, and the direct current relay with the sampling signal pin has the characteristics of simple structure and easiness in operation.
According to the direct current relay with the sampling signal pin, one end 31 of the sampling signal pin is connected with one of the static spring leading-out ends (namely the load leading-out end) 12 through the laser welding mode, and the direct current relay has the characteristic of high connection reliability.
The invention relates to a direct current relay with a sampling signal pin, which adopts a sinking surface 121 arranged at the connection part of a static spring leading-out end (namely a load leading-out end) 12 and one end 31 of the sampling signal pin, and the sinking surface 121 of the static spring leading-out end is lapped with the one end 31 of the sampling signal pin. According to the structure, the sinking small section of plane is arranged at the leading-out end, so that the original installation of the copper bar of a customer is not influenced after the sampling signal pin is installed.
The invention relates to a direct current relay with a sampling signal pin, which adopts the structure that the sampling signal pin 3 is bent downwards from the connection part of the leading-out end of one static spring and extends to the other end of the sampling signal pin 3 along the surface of a shell 2, and the structure of the sampling signal pin 3 leads the sampling signal pin 3 to be led out from the surface of the shell 2, thereby furthest pulling away the distance from an internal cavity and improving the creepage distance of strong current (i.e. the electric signal passing through a dynamic contact and a static contact) and weak current (i.e. the electric signal provided for a coil).
The invention relates to a direct current relay with a sampling signal pin, wherein two inserting pieces 321 are arranged at the lower part of the other end 32 of the sampling signal pin, and the two inserting pieces 321 of the sampling signal pin penetrate through the shell wall of a shell and are bent in opposite directions to be attached to the inner wall of the shell 2. According to the structure, after the two reverse leading-out pins are inserted into the shell, the two reverse leading-out pins are bent towards two sides to form a 90-degree right angle, so that the fixing and external force plugging and pulling-out preventing effects are achieved.
The direct current relay with the sampling signal pin adopts the inner wall of the shell 2, the periphery of the position corresponding to the inserting piece is also integrally provided with a retaining wall 22, the shell 2 (namely the outer wall of the shell) is also provided with a fence 23 which is annularly wrapped around the other end of the sampling signal pin at the fixed position corresponding to the other end of the sampling signal pin. The structure of the invention ensures that plastic enclosing walls are grown around the sampling signal pins for isolation, thereby improving the creepage distance of strong and weak electricity.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A DC relay with sampling signal pin comprises two static spring leading-out terminals and a shell; the two static spring leading-out ends are respectively fixed on the shell, the upper parts of the two static spring leading-out ends are respectively exposed outside the shell and are used for being connected with a corresponding external circuit, and the lower parts of the two static spring leading-out ends are respectively accommodated in the shell and are used for being matched with a movable spring component of the relay; the method is characterized in that: the direct current relay also comprises a sampling signal pin, one end of the sampling signal pin is used as a signal input end and is connected with one of the two static spring leading-out ends, and the other end of the sampling signal pin is used as a signal leading-out end and is fixed on the shell; one end of the sampling signal pin is connected and fixed with one of the static spring leading-out ends in a laser welding mode; the other end of the sampling signal pin is fixed at the position close to the edge of the shell; and an enclosing wall which surrounds the other end of the sampling signal pin in an annular shape is also arranged at the fixed position corresponding to the other end of the sampling signal pin on the shell.
2. The direct current relay with the sampling signal pin according to claim 1, wherein: and a settlement surface is arranged at the joint of one of the static spring leading-out ends and one end of the sampling signal pin, and one end of the sampling signal pin is lapped on the settlement surface of the static spring leading-out end.
3. The dc relay with the sampling signal pin of claim 2, wherein: the thickness dimension of subsiding of the subsidence face of quiet spring terminal of drawing forth is the same with the thickness dimension of sampling signal foot for the sampling signal foot is taken behind the subsidence face of quiet spring terminal of drawing forth, and is the same with the original height dimension of quiet spring terminal of drawing forth.
4. The dc relay with the sampling signal pin of claim 2, wherein: one of the static spring leading-out ends is of a cylindrical structure, an annular step is arranged at the upper part of the static spring leading-out end, the settlement surface is annularly arranged at the step, and one end of the sampling signal pin is of an annular structure and matched with the annular settlement surface.
5. The direct current relay with the sampling signal pin according to claim 1, wherein: and one of the static spring leading-out ends is a static spring leading-out end which is used for being connected with a load in the two static spring leading-out ends.
6. The direct current relay with the sampling signal pin according to claim 1, wherein: the sampling signal pin is bent downwards from the connection part of the sampling signal pin and the one static spring leading-out end and extends to the other end along the surface of the shell.
7. The direct current relay with the sampling signal pin according to claim 6, wherein: the surface of the shell is provided with a groove for embedding the corresponding part of the sampling signal pin.
8. The direct current relay with the sampling signal pin according to claim 1, wherein: the lower part of the other end of the sampling signal pin is provided with an inserting piece, and the inserting piece of the sampling signal pin penetrates through the shell wall of the shell and then is bent and attached to the inner wall of the shell, so that the other end of the sampling signal pin is fixed on the shell.
9. The dc relay with the sampling signal pin of claim 8, wherein: the lower part of the other end of the sampling signal pin is provided with two insertion pieces, and the two insertion pieces of the sampling signal pin penetrate through the shell wall of the shell and are bent in opposite directions to be attached to the inner wall of the shell.
10. The dc relay with the sampling signal pin according to claim 8 or 9, wherein: the inner wall of the shell is also integrally provided with a retaining wall at the periphery of the position corresponding to the inserting piece so as to isolate the inserting piece from the relay magnetic circuit part in the shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710742751.4A CN107768198B (en) | 2017-08-25 | 2017-08-25 | DC relay with sampling signal pin |
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| CN201710742751.4A CN107768198B (en) | 2017-08-25 | 2017-08-25 | DC relay with sampling signal pin |
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| CN107768198A CN107768198A (en) | 2018-03-06 |
| CN107768198B true CN107768198B (en) | 2020-06-05 |
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| Publication number | Publication date |
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| CN107768198A (en) | 2018-03-06 |
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