Automotive electronic equipment and automotive connector

Abstract

The utility model discloses automobile electronic equipment and an automobile connector. The automobile connector comprises a shell, and the shell is provided with an interface end and a plugging end opposite to the interface end. The first number of pins are distributed at the plugging end, each pin comprises an extension conductor, and the extension conductors protrude out of the shell from the plugging end; and a second number of sleeve elements each having a dielectric constant greater than that of the elongated conductor, the sleeve elements being connected to a specified pin such that the specified pin passes within the sleeve elements, and the sleeve elements being positioned to cover a surface of a specified section on the elongated conductor of the specified pin. The characteristic impedance of the automobile connector is reduced.

Description

Technical Field

[0001] The present application belongs to the field of automobile manufacturing, and specifically relates to an automobile connector. The present application also relates to an automobile electronic device including the automobile connector. Background Art

[0002] With the development of intelligent and connected cars, today's cars have higher and higher requirements for on-board signal transmission. Cars are full of electronic chips and board-level systems that communicate through high-speed networks and buses. Whether it is used for infotainment or some degree of autonomous driving applications, many electronic systems have customized connectors and related wiring requirements to cope with fast and large signal transmission. The quality of signal transmission is related to the communication protocol. Characteristic impedance is one of the performance parameters that characterize the quality of signal transmission. Utility Model Content

[0003] One aspect of the present application is to provide an automotive connector, which provides signal transmission.

[0004] The automotive connector includes a shell having an interface end and a plug end opposite to the interface end; a first number of pins, the pins are distributed at the plug end, each of the pins includes an elongated conductor, the elongated conductor protrudes from the plug end outside the shell; and a second number of sleeve elements, each of the sleeve elements has a dielectric constant greater than that of the elongated conductor, the sleeve elements are connected to a designated pin so that the designated pin passes through the sleeve element, and the sleeve elements are positioned to cover the surface of a designated section on the elongated conductor of the designated pin.

[0005] In one embodiment of the automotive connector, the pin has a terminal end that is soldered to a through-hole of a circuit board, and the terminal end is configured to guide the sleeve element through the terminal end and move along the elongated conductor until reaching the designated section.

[0006] In one embodiment of the automotive connector, the automotive connector has a plurality of designated pins having a configuration of a same elongated conductor from the end to the designated section.

[0007] In an embodiment of the automotive connector, the sleeve element is made of a material with a dielectric constant greater than 1.

[0008] In an embodiment of the automotive connector, the elongated conductor comprises a first length portion and a second length portion, the first length portion is redirected relative to the second length portion, and the sleeve element is arranged on the first length portion and / or the second length portion.

[0009] In an embodiment of the automotive connector, one or more of the sleeve elements are arranged on the first length portion and / or the second length portion; wherein there are gaps between adjacent sleeve elements in the plurality of the sleeve elements so that the portion of the elongated conductor between the adjacent sleeve elements is in contact with the air.

[0010] In an embodiment of the automotive connector, the sleeve element is made of plastic or silicone.

[0011] In one embodiment of the automotive connector, the interface end includes a first accommodating cavity and a second accommodating cavity, a portion of the first number of pins are arranged together so that the pins extend to the interface end to form a plurality of terminal rows in the first accommodating cavity, and a remaining portion of the first number of pins are arranged together so that the remaining pins extend to the interface end to form another plurality of terminal rows in the second accommodating cavity.

[0012] In one embodiment of the automobile connector, the automobile connector is a 154-position connector or a 124-position connector.

[0013] In an embodiment of the automobile connector, the designated pin is used for Ethernet transmission, and the transmission rate of the Ethernet is 25 Mbit / s to 2.5 Gbit / s.

[0014] In one embodiment of the automotive connector, the second number is smaller than the first number.

[0015] Another aspect of the present application is to provide an automotive electronic device, in which a circuit board and at least one automotive connector according to any one of the above embodiments are arranged, wherein at least one of the automotive connectors is connected to the circuit board.

[0016] In an embodiment of the automotive electronic device, the automotive electronic device is an automotive electronic control unit, a vehicle controller, a central gateway, or a domain controller.

[0017] The present application adds a sleeve element to the pin area of ​​the connector to reduce the characteristic impedance of the area to improve the signal transmission quality. The sleeve element is made of a material with a high dielectric constant. Since there is an inverse relationship between the characteristic impedance and the dielectric constant, when the dielectric constant increases, the characteristic impedance decreases.

[0018] The sleeve element can be sleeved on a designated section of a designated pin according to the design to shield the surface of the elongated conductor in the section. Through simulation experiments, it can be determined which part of the pin area has too high frequency and whether a high dielectric constant material should be applied to a special pin and its special section to effectively reduce high-frequency impedance.

[0019] The present application does not need to modify the original mechanical structure of the connector, so the interface of the connector is maintained. If the mechanical structure of the connector is redesigned, it is necessary to open a mold and design a new circuit. However, the present application saves these works. The present application is applicable to large-digit connectors. In addition, the existing connector can be modified to obtain the present application. Therefore, the present application has the advantage of low cost, and is simple and effective in improving the quality of signal transmission.

[0020] The sleeve is put onto the elongated conductor of the pin from the end of the pin, facilitating the connection of the sleeve to the pin, and can be removed from the pin without destroying the pin.

[0021] The automobile connector and automobile electronic device involved in the present application can provide good signal transmission quality.

[0022] Other aspects and features of the present application will become apparent from the following detailed description with reference to the accompanying drawings. It should be understood, however, that the drawings are designed for illustrative purposes only and are not intended to limit the scope of the present application, as reference should be made to the appended claims. It should also be understood that the drawings are intended only to conceptually illustrate the structures and processes described herein and, unless otherwise indicated, are not necessarily drawn to scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application will be more fully understood by referring to the following detailed description of specific embodiments in conjunction with the accompanying drawings, in which the same reference numerals in the drawings always refer to the same elements in the drawings.

[0024] Figure 1 A simplified view of an embodiment of an automotive connector assembly;

[0025] Figure 2 A schematic diagram of an embodiment of an automobile connector involved in the present application;

[0026] Figure 3 for Figure 2 Enlarged view of circle A in the middle;

[0027] Figure 4 A schematic diagram of another embodiment of the automotive connector involved in the present application;

[0028] Figure 5 This is a schematic diagram of another embodiment of the automotive connector involved in the present application;

[0029] Figure 6 A schematic diagram of the connection between the automotive connector and the circuit board involved in this application; and

[0030] Figure 7 The present invention is a simplified diagram of an embodiment of the automotive electronic device involved in the present application. DETAILED DESCRIPTION

[0031] In order to help those skilled in the art to accurately understand the subject matter for which protection is sought in the present application, the specific implementation of the present application is described in detail below in conjunction with the accompanying drawings.

[0032] Figure 1 1 is a simplified view of an embodiment of an automotive connector assembly. The automotive connector assembly 10 includes a pair of automotive connectors. In the automotive connector assembly, one automotive connector 12 can be called a male connector, and the other automotive connector 14 can be called a female connector, and the male connector and the female connector are butted against each other. The automotive connector 12 is connected to a circuit board 16, and the automotive connector 14 is connected to a cable 18. The signal is transmitted from the sensor 19 to the circuit board 16 with an integrated chip via the automotive connector assembly 10. The automotive connector assembly 10 is assembled on the circuit board 16, the automotive connector 12 is connected to the circuit board 16, the automotive connector 14 is connected to the sensor 19 via the cable 18, and the automotive connector 12 and the automotive connector 14 are connected.

[0033] Figure 2 The schematic diagram of an embodiment of the automobile connector involved in the present application is shown in FIG. The automobile connector 12 includes a housing 20, and the housing 20 has an interface end 22 and a plug end 24 opposite to each other. The interface end 22 is used to connect to another automobile connector. The plug end 24 is used to connect to a circuit board.

[0034] The automotive connector 12 also includes a first number of pins 26. Each pin 26 includes an elongated conductor 28, and the elongated conductor 28 protrudes from the plug end 24 outside the housing 20. The end of the elongated conductor 28 away from the housing is a terminal 29. The number of pins 26 is not limited to Figure 2 As shown, there may be twenty, thirty, ... ninety, or even one hundred or more pins 26. These pins 26 are neatly arranged at the plug end 24 where the automobile connector 12 is connected to the circuit board, and are exposed from the housing 20.

[0035] The automotive connector 12 also includes a second number of hub components 30 . Figure 3 Shows Figure 2 Enlarged view of circle A in the middle. The dielectric constant of the sleeve 30 is greater than the dielectric constant of the elongated conductor 28. The sleeve 30 is connected to the elongated conductor 28 so that the elongated conductor 28 passes within the sleeve 30. The sleeve 30 is substantially wrapped around the elongated conductor 28. Back Figure 2, the number of sleeve elements 30 may be different from that of pins 26. Not every pin is connected to the sleeve element, but the sleeve element is connected to a designated pin. Relative to the designated pin, the sleeve element is positioned at a designated section on the elongated conductor of the pin to cover the surface of the designated section. Because the dielectric constant of the sleeve element 30 is different from that of the elongated conductor 28, the addition of the sleeve element 30 changes the characteristic impedance performance of the pin 26. The sleeve element 30 is made of a material with a high dielectric constant, thereby reducing the characteristic impedance performance of the pin 26, thereby improving the signal transmission quality.

[0036] The dielectric constant of the sleeve element 30 is greater than 1. In one embodiment, the sleeve element 30 is made of plastic or silicone.

[0037] Figure 4 Schematic diagram of an embodiment of the automotive connector involved in the present application. The elongated conductor 28 of the pin 26 includes a first length portion 34 and a second length portion 36. The first length portion 34 is substantially perpendicular to the second length portion 36. The sleeve element 30 is arranged on the pins 26 at the second, third, fifth and sixth outer sides from the left. The arrangement of the sleeve element is not limited to the embodiment shown in the figure. In this embodiment, the sleeve element 30 is arranged on both the first length portion 34 and the second length portion 36, wherein two sleeve elements 30 spaced apart from each other are arranged on the first length portion 34, and a longer sleeve element 30 is arranged on the second length portion 36. The gap 32 between the two spaced-apart sleeve elements 30 exposes a portion of the elongated conductor 28 to be exposed to the air.

[0038] Figure 5 FIG. 1 is a schematic diagram of another disclosed embodiment of the automotive connector involved in the present application. Figure 4 The same embodiment is shown, and the sleeves 30 are arranged on the second, third, fifth and sixth outer pins 26 from the left. The sleeves 30 are arranged on both the first length portion 34 and the second length portion 36. Three sleeves 30 are arranged on the first length portion 34, and a sleeve 30 is arranged on the second length portion 36. The sleeve 30 is longer than each of the three sleeves 30, but the length of the sleeve is not greater than that of the first length portion 34. Figure 4 In the embodiment, the length of the sleeve element on the second length portion is long. Similarly, the gaps 32 between the three sleeve elements 30 expose the portion of the elongated conductor 28, which is in contact with the air.

[0039] In other embodiments, the sleeve element may be arranged on the first length portion or the second length portion.In addition to the first length portion and the second length portion, the sleeve element may also be arranged on other portions of the elongated conductor.

[0040] The area of ​​the cover element 30 covering the surface of the elongated conductor 28 determines the impedance reduction effect. For each model of automobile connector, the cover element is arranged with a targeted characteristic impedance reduction design. The pin 26 is connected to the circuit board by a perforated soldering method. The cover element 30 enters the elongated conductor 28 via the end 29 and is guided by the end 29, and then moves along the elongated conductor 28 until it reaches the specified section. The cover element can be easily installed on the pin and can also be easily removed from the pin, thereby facilitating the design and modification of the automobile connector. For the same model of automobile connector, the specified pin has the same elongated conductor structure from the end to the specified section, and the same cover element design can be applied to each specified pin. In addition, a variety of specifications of covers can be prepared, that is, the cover element of one specification is different from the cover element of another specification, and these different specifications of covers are applied to each model of automobile connector in a combined manner to reduce the characteristic impedance. Therefore, the cover element not only provides flexibility, but also provides versatility, and the cover element can be mass-produced, and its production cost is relatively low.

[0041] Combination Figure 2 , the interface end 22 of the automobile connector includes a first accommodating cavity 38 and a second accommodating cavity 40. The first number of pins 26 are roughly divided into two parts based on the two accommodating cavities, one part is arranged together and extends to the interface end 22 to form a plurality of terminal rows (not shown) in the first accommodating cavity 38, and the other part is also arranged together and extends to the interface end 22 to form a plurality of terminal rows (not shown) in the second accommodating cavity 40. The terminals correspond to the pins one by one. In the illustrated embodiment, the automobile connector is a 154-position connector, with 94 pins corresponding to the first accommodating cavity and 60 pins corresponding to the second accommodating cavity. Due to the large number of pins, it is laborious to insert them into the circuit board during the assembly process, and there is a possibility of uneven stress even after they are inserted into the circuit board. By dividing a large number of pins into multiple parts, the above-mentioned assembly problem can be alleviated. In other embodiments, the automobile connector can be a 124-position connector.

[0042] like Figure 6 As shown, the first length portion 34 of the extended conductor is redirected relative to the second length portion 36. The second length portion 36 is inserted into the circuit board 16, and the first length portion 34 is not inserted into the circuit board but changes the extension direction. After the redirection, the installation direction of the automotive connector relative to the circuit board 16 changes in space, thereby saving space. In the illustrated embodiment, the first length portion 34 and the second length portion 36 are substantially perpendicular to each other. The outlet direction of the cable on the female outlet terminal can be parallel to the circuit board 16.

[0043] In one embodiment, designated pins are used for Ethernet signal transmission. Some of the pins of the automotive connector are used for signal transmission, and sleeve components can be put on all of the pins used for signal transmission, or some of the pins used for signal transmission can be put on sleeve components. The number of sleeve components is less than the number of pins. In another embodiment, the automotive connector involved in the present application is a high-frequency connector or a high-speed connector. In yet another embodiment, the automotive connector involved in the present application is used for Ethernet with a transmission rate in the range of 25Mbit / s to 2.5Gbit / s, for example, the transmission rate of the automotive connector is 100Mbit / s or 1Gbit / s. In other embodiments, the automotive connector involved in the present application is a large-bit connector with more than 20 bits. Automobiles using the automotive connector involved in the present application include traditional automobiles and new energy vehicles such as electric vehicles.

[0044] The application also relates to an automotive electronic device. Figure 7 An embodiment of an automotive electronic device involved in the present application is schematically shown. The automotive electronic device 50 includes a housing 52, in which a circuit board 16 and an automotive connector assembly 10 mounted on the circuit board 16 are arranged. The automotive connector assembly 10 includes the automotive connector involved in the present application. The automotive electronic device 50 includes but is not limited to an automotive electronic control unit, a vehicle controller, a central gateway, or a domain controller.

[0045] Although specific embodiments of the present application have been shown and described in detail to illustrate the principles of the present application, it should be understood that the present application can be implemented in other ways without departing from such principles.

Claims

1. An automotive connector, characterized in that include: A housing (20), the housing (20) having an interface end (22) and a connector end (24) opposite to the interface end (22); a first number of pins (26), the pins (26) being distributed at the connector end (24), each pin (26) comprising an elongated conductor (28), the elongated conductor (28) protruding from the connector end (24) outside the housing (20); as well as A second number of sleeves (30), each sleeve (30) having a greater dielectric constant than the elongated conductor (28), the sleeves (30) being connected to a designated pin such that the designated pin passes within the sleeves (30), and the sleeves (30) being positioned to cover a surface of a designated section on the elongated conductor (28) of the designated pin.

2. The automotive connector according to claim 1, wherein: The pin (26) has an end (29) soldered to a through-hole of a circuit board, and the end (29) is configured to guide the sleeve (30) through the end (29) and move along the elongated conductor (28) until reaching the designated section, wherein the sleeve (30) is made of a material with a dielectric constant greater than 1.

3. The automotive connector according to claim 2, wherein: The automotive connector has a plurality of designated pins having a configuration of identical elongated conductors (28) from the end (29) to the designated section.

4. The automotive connector according to any one of claims 1 to 3, wherein: The elongated conductor (28) includes a first length portion (34) and a second length portion (36), the first length portion (34) being redirected relative to the second length portion (36), and the sleeve (30) is disposed on the first length portion (34) and / or the second length portion (36).

5. The automotive connector according to claim 4, wherein: One or more of the sleeve elements (30) are arranged on the first length portion (34) and / or the second length portion (36); wherein adjacent sleeve elements in the plurality of the sleeve elements have gaps (32) between them so that the portion of the elongated conductor between the adjacent sleeve elements is in contact with air.

6. The automotive connector according to any one of claims 1 to 3, characterized in that: The sleeve element (30) is made of plastic or silicone.

7. The automotive connector according to any one of claims 1 to 3, characterized in that: The interface end (22) comprises a first accommodating cavity (38) and a second accommodating cavity (40), a portion of the first number of pins (26) are arranged so as to be arranged together so that the pins of this portion extend to the interface end (22) to form a plurality of terminal rows in the first accommodating cavity (38), and a remaining portion of the first number of pins (26) are arranged so as to be arranged together so that the remaining pins of this portion extend to the interface end (22) to form another plurality of terminal rows in the second accommodating cavity (40); The automobile connector is a 154-position connector or a 124-position connector.

8. The automotive connector according to any one of claims 1 to 3, characterized in that: The designated pins are configured for Ethernet transmission, and the Ethernet transmission rate is 25 Mbit / s to 2.5 Gbit / s; the second number is smaller than the first number.

9. An automotive electronic device, characterized in that A circuit board (16) and at least one automotive connector according to any one of claims 1 to 8 are arranged in the automotive electronic device, wherein the at least one automotive connector is connected to the circuit board (16) at the plug end (24).

10. The automotive electronic device according to claim 9, wherein: The automotive electronic device is an automotive electronic control unit, a vehicle controller, a central gateway, or a domain controller.

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