CN218788356U

CN218788356U - Relay

Info

Publication number: CN218788356U
Application number: CN202223132748.6U
Authority: CN
Inventors: 姚茂松; 陈帅
Original assignee: Xiamen Hongfa Automotive Electronics Co Ltd
Current assignee: Xiamen Hongfa Automotive Electronics Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-04
Anticipated expiration: 2032-11-24

Abstract

The utility model relates to a relay, be in including casing and the load terminal that extends the outer casing that exposes, still set up including the installation cross line PCB in the casing, cross the line PCB and be equipped with signal detection pin and temperature detection pin at the output, load terminal is connected to cross the line PCB cross still be connected with thermistor on the line PCB, load terminal and thermistor pass through cross the line PCB and be connected to respectively signal detection pin and temperature detection pin. The utility model discloses can utilize the line PCB board will be used for realizing that the signal line of load signal detection function and temperature detection function carries out detection and analysis in order to realize carrying out signal monitoring and temperature detection to the relay of this embodiment through the pin external for outside the control unit, and functional element such as sensor, detection circuitry and treater circuit in need not establishing in the casing again, help reducing the appearance volume of relay to be fit for more using in the car.

Description

Relay

Technical Field

The utility model relates to a relay, concretely relates to relay of signal detection and temperature monitoring function has integrateed.

Background

The performance requirements of automobile relays are more and more emphasized in recent years, particularly, the intelligent requirements on the automobile relays are higher and higher due to the further promotion of the automatic driving technology, but at present, the traditional automobile relays usually do not have the functions of signal detection, temperature monitoring and the like, or even if the functions of signal detection and temperature monitoring are integrated, a temperature sensor, a voltage and current sensor, a detection circuit and a processor circuit of the voltage and current sensor are usually integrated in the relays, so that the relays are large in size and not beneficial to installation.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a configuration optimization's relay.

The utility model discloses a following technical scheme realizes:

the utility model provides a relay, be in including casing and the load terminal that extends the outer casing that exposes, still set up including the installation cross line PCB in the casing, cross line PCB and be equipped with signal detection pin and temperature detection pin at the output, load terminal is connected to cross line PCB cross still be connected with thermistor on the line PCB, load terminal and thermistor pass through cross line PCB and be connected to respectively signal detection pin and temperature detection pin.

Preferably, the thermosensitive element is disposed in a position close to the load terminal.

Preferably, a magnetic circuit part is arranged in the shell and comprises a coil, a coil pin is further arranged at the output end of the wire passing PCB, and the coil is connected to the wire passing PCB and connected to the coil pin through the wire passing PCB.

Preferably, the load terminal includes a first terminal and a second terminal, the magnetic circuit portion is located at a rear end, the first terminal and the second terminal are located at a front end, the wire-passing PCB extends from front to back, the front end of the wire-passing PCB branches into a first branch portion and a second branch portion, the first branch portion and the second branch portion are respectively used for connecting the first terminal and the second terminal, and the rear end of the wire-passing PCB is connected with the coil.

Preferably, the first terminal and the second terminal are arranged in a left-right opposite manner, the wire passing PCB further extends towards the left side or the right side of the wire passing PCB beyond an outer brim of the magnetic circuit portion, the outer brim is used as an area for arranging an output end of the wire passing PCB, and the signal detection pin, the temperature detection pin and the coil pin are connected to the output end of the outer brim.

Preferably, the load terminal is in an L-shaped sheet structure, an exposed end of the load terminal is a sheet plane, a direction perpendicular to the sheet plane of the exposed end is defined as an up-down direction, the exposed end is relatively located at a lower position of the housing, the wire passing PCB and the exposed end are arranged in parallel, and the signal detection pin, the temperature detection pin and the coil pin extend upward perpendicular to the wire passing PCB.

Preferably, the housing includes a top surface above, a bottom surface below, and a side surface between the top surface and the bottom surface, the top surface is provided with a connector interface, and the signal detection pin, the temperature detection pin, and the coil pin are disposed in the connector interface in an extending manner.

Preferably, the connector interface is formed by integrally molding the housing in a downward concave manner.

Preferably, a contact pin extending in the vertical direction is arranged on the load terminal, and through holes are formed in the first and second bifurcated parts of the wire passing PCB, corresponding to the contact pin.

Preferably, the contact pin is integrally formed on the load terminal; or the contact pin is separated from the load terminal, and the contact pin is fixedly connected to the load terminal.

The utility model discloses following beneficial effect has: the utility model discloses can utilize the signal line that the line PCB board will be used for realizing load signal detection function and temperature detection function to detect the analysis and carry out signal monitoring and temperature detection in order to realize carrying out the relay to this embodiment through the pin external for outside the control unit, realize the signal monitoring and the temperature detection function that SSR electrical switch has. And the relay is not used for arranging functional elements such as a sensor, a detection circuit, a processor circuit and the like in the shell, so that the appearance volume of the relay is reduced, and the relay is more suitable for being applied to automobiles.

Drawings

FIG. 1 is a schematic perspective view (angle one) of a relay in an embodiment;

FIG. 2 is a perspective view (angle two) of the relay in the embodiment;

FIG. 3 is a schematic diagram of a relay in an embodiment (with the cover removed);

FIG. 4 is a schematic diagram of the internal structure of a relay in the embodiment;

FIG. 5 is a schematic view of a first terminal and a second terminal in the embodiment;

fig. 6 is a schematic diagram of a first terminal and a second terminal in a modification of the embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 4, as a preferred embodiment of the present invention, there is provided a relay, more specifically, an electromagnetic relay widely used in automobiles, comprising a housing 1 and a load terminal exposed out of the housing 1, wherein the load terminal comprises a first terminal 2 and a second terminal 3, and the housing 1 has a closed box-shaped main body, and is formed by engaging and fixing an open base and a cover. A Printed Circuit Board 5 (PCB, hereinafter referred to as a "wire-passing PCB Board 5") is fixedly installed in the housing 1, in this embodiment, a wire-passing copper foil for connecting an input end and an output end is arranged on the wire-passing PCB Board 5, the wire-passing copper foil serves as a path of a signal transmission medium, the wire-passing PCB Board 5 is not additionally provided with functional devices such as a controller Circuit with a logic control function or other peripheral circuits, the output end on the wire-passing PCB Board 5 is provided with a set of

signal detection pins

61 and 62 and a set of

temperature detection pins

63 and 64, the first terminal 2 and the second terminal 3 are connected to the input end of a wire-passing wire of the wire-passing PCB Board 5, the first terminal 2 is connected to the signal detection pin 62 through the wire-passing PCB Board 5, the second terminal 3 is connected to the signal detection pin 61 through the wire-passing PCB Board 5, the wire-passing PCB Board 5 is further connected with a thermosensitive element 7, and two signal acquisition ends of the thermosensitive element 7 are connected to the input end of the wire-passing PCB Board 5 and are connected to the temperature detection pin 63 and the output end of the wire-passing PCB Board 64 respectively after passing PCB Board 5. In the embodiment, by the arrangement, the signal line for realizing the load signal detection function and the temperature detection function can be detected and analyzed by the wire passing PCB 5 through the external pin connection to the external control unit, so that the signal monitoring and the temperature detection of the electromagnetic relay in the embodiment are realized, and the signal monitoring and the temperature detection functions of the SSR electrical switch are realized. In addition, the electromagnetic relay of the embodiment does not need to be provided with functional elements such as a sensor, a detection circuit and a processor circuit in the housing 1, and is beneficial to reducing the appearance volume of the relay, so that the electromagnetic relay is more suitable for being applied to automobiles. The thermistor 7 is disposed in the present embodiment in a position close to the load terminal to improve the sensitivity, authenticity and accuracy of its temperature detection.

As shown in fig. 4, a magnetic circuit portion 4 is disposed in the housing 1, the magnetic circuit portion 4 includes a coil, a set of

coil pins

65, 66, and 67 is further disposed on the wire-passing PCB 5, and a connection end of the coil is connected to an input end of a wire-passing of the wire-passing PCB 5, and is connected to the

coil pins

65, 66, and 67 at an output end of the wire-passing after being routed through the wire-passing PCB 5, so that an external control unit performs driving control on the magnetic circuit portion 4. With the magnetic circuit portion 4 at the rear end, the first terminal 2 and the second terminal 3 are disposed at the front end (i.e. the direction X1 in fig. 4 is the rear direction, and the direction X2 is the front direction), the wire passing PCB 5 extends from the front to the rear, and the front end thereof branches into a first branch portion 52 and a second branch portion 51, the first branch portion 52 and the second branch portion 51 are respectively used for connecting the first terminal 2 and the second terminal 3, and the rear end of the wire passing PCB 5 is connected with the coil of the magnetic circuit portion 4. The arrangement can reduce the structural area of the wire passing PCB 5 as much as possible, thereby being miniaturized to facilitate the assembly of the wire passing PCB. The first terminal 2 and the second terminal 3 are arranged oppositely left and right (i.e., the direction Y2 is the left direction and the direction Y1 is the right direction in fig. 4), the wire-passing PCB 5 further extends toward the left side (or the right side) thereof to an outer edge 53 beyond the magnetic circuit portion 4, the outer edge 53 serves as a region where the output end of the wire-passing PCB 5 is arranged, and the signal detection pins (signal detection pins 61 and 62), the temperature detection pins (temperature detection pins 63 and 64), and the coil pins (

coil pins

65, 66, and 67) are connected to the outer edge 53. In this embodiment, the positions of the coil of the combined magnetic circuit part 4, the first terminal 2 and the second terminal 3 of the load terminal relative to the wire-passing PCB 5 are as follows: coil pin 65, coil pin 66, coil pin 67, signal detection pin 61, temperature detection pin 63, temperature detection pin 64, signal detection pin 62.

The first terminal 2 and the second terminal 3 are both L-shaped sheet structures, and referring to fig. 1 and 2, the exposed ends of the first terminal 2 and the second terminal 3 (such as the exposed end 21 of the first terminal 2) are sheet planes, the direction perpendicular to the sheet planes of the exposed ends is defined as the up-down direction, the exposed ends are relatively located at the lower position of the housing 1 (i.e., Z1 is upward and Z2 is downward in fig. 4), the wire-passing PCB 5 is arranged in parallel with the exposed ends, and the signal detection pins, the temperature detection pins, and the coil pins extend upward at the output end of the wire-passing PCB 5. The housing 1 includes an upper top surface 11, a lower bottom surface 12, and a side surface 13 between the top surface 11 and the bottom surface 12, the top surface 11 is provided with a connector interface 8, and the signal detection pins (signal detection pins 61 and 62), the temperature detection pins (temperature detection pins 63 and 64), and the coil pins (

coil pins

65, 66, and 67) extend vertically upward and are disposed in the connector interface 8. The embodiment fully considers the human-machine function by arranging the connector in a top opposite insertion mode instead of a side insertion mode generally existing in the prior art, lightens the use strength of a person and improves the operation convenience of the person. In addition, in the embodiment, the socket of the connector is formed by integrally forming the casing 1 by sinking downwards, so that the problem of abnormal failures such as the loosening of the relay end connector and the whole relay is solved, and the production process is simplified.

As shown in fig. 5, the first terminal 2 and the second terminal 3 are respectively provided with a

22, 32 extending in the vertical direction, and the through holes are provided in the first branch portion 52 and the second branch portion 51 of the wire-passing PCB 5 corresponding to the

pins

22, 32 on the wire-passing PCB 5. The input connection of the load terminal and the wire passing PCB 5 is realized through the insertion matching of the contact pin and the through hole, and the manufacturing and the installation of the relay are facilitated. In the present embodiment, the

pins

22 and 32 are integrally formed on the first terminal 2 and the second terminal 3, respectively, in other embodiments, as shown in fig. 6, the pins 22A and 33A may also be separately disposed from the first terminal 2A and the second terminal 3A, respectively, and the pins 22A and 33A are fixedly connected (e.g., screwed or riveted) on the side wall of the first terminal 2A extending downward from the second terminal 3A.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A relay, includes casing and the load terminal that extends to expose the casing, its characterized in that: still including installing the setting and being in cross the line PCB in the casing, cross the line PCB and be equipped with signal detection pin and temperature detection pin at the output, load terminal is connected to cross the line PCB still be connected with the temperature sensing element on crossing the line PCB, load terminal and temperature sensing element pass through cross the line PCB and be connected to respectively signal detection pin and temperature detection pin.

2. The relay according to claim 1, characterized in that: the heat sensitive element is disposed proximate to the load terminal.

3. The relay according to claim 1 or 2, characterized in that: the shell is internally provided with a magnetic circuit part, the magnetic circuit part comprises a coil, the wire passing PCB is also provided with a coil pin at the output end, and the coil is connected to the wire passing PCB and is connected to the coil pin through the wire passing PCB.

4. The relay according to claim 3, characterized in that: the load terminal comprises a first terminal and a second terminal, the magnetic circuit part is relatively arranged at the rear end, the first terminal and the second terminal are relatively arranged at the front end, the wire passing PCB extends from front to back, the front end of the wire passing PCB is branched into a first branched part and a second branched part, the first branched part and the second branched part are respectively used for connecting the first terminal and the second terminal, and the rear end of the wire passing PCB is connected with the coil.

5. The relay according to claim 4, wherein: first terminal and second terminal are left and right sides opposition, it still extends one towards its left side or right side and exceeds to cross the line PCB the outer eaves portion of magnetic circuit part, outer eaves portion is used as arranging the region of line PCB's output, signal detection pin, temperature detection pin and coil pin are connected output on the outer eaves portion.

6. The relay according to claim 5, characterized in that: the load terminal is of an L-shaped sheet structure, the exposed end of the load terminal is a sheet plane, the direction perpendicular to the sheet plane of the exposed end is defined to be the vertical direction, the exposed end is relatively located at the lower portion of the shell, the wire passing PCB is parallel to the exposed end, and the signal detection pin, the temperature detection pin and the coil pin are perpendicular to the wire passing PCB and extend upwards.

7. The relay according to claim 5, characterized in that: the casing includes the top surface of top, the bottom surface of below and is in the side between top surface and the bottom surface, be equipped with a connector interface on the top surface, signal detection pin, temperature detection pin and coil pin extend and set up in the connector interface.

8. The relay according to claim 7, wherein: the connector interface is formed by integrally molding the shell by sinking downwards.

9. The relay according to claim 6, wherein: the load terminal is provided with a contact pin extending in the vertical direction, and the first bifurcating part and the second bifurcating part on the wire passing PCB are provided with through holes corresponding to the contact pin.

10. The relay according to claim 9, wherein: the contact pin is integrally formed on the load terminal; or the contact pin is separated from the load terminal, and the contact pin is fixedly connected to the load terminal.