Expansion connecting device

Abstract

The utility model relates to the technical field of testing, and discloses an expansion connecting device which comprises a device body and a plurality of switches. The plurality of switches are sequentially arranged in the device body; the switches comprise a signal input group, a first signal output group and a second signal output group, and the first signal output group and the second signal output group of each switch are electrically connected with two other switches respectively; the switch is provided with a first gear and a second gear, and when the switch is in the first gear, the signal input group is electrically connected with the first signal output group; when the switch is at the second gear, the signal input group is electrically connected with the second signal output group, a plurality of controllers can be freely switched to one-to-one communication objects without frequently plugging and unplugging wire harnesses, the problem of poor fatigue of plug-ins is avoided, the stability of connection between the controllers of a plurality of project types and a test system is ensured, and the reliability of the test system is improved. Therefore, the test can be carried out smoothly, and the accuracy of the test result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to an extended connection device. Background Art

[0002] Currently, in the field of hardware-in-the-loop testing of electronic control units (ECUs), the wiring harness is usually unplugged and plugged to change the wiring harness connection state to build a test system. Usually, there are three or more controllers in the test system. When changing the test environment of the electronic control unit, different electronic control units need to be frequently switched. Each time the electronic control unit is switched, the plug-in needs to be unplugged and plugged once. When the switching of the electronic control unit is frequent, it is easy to cause fatigue of the connector, resulting in unstable connection abnormalities, thus leading to abnormal test results or inability to test. Summary of the Utility Model

[0003] In view of this, the utility model provides an extended connection device to solve the problem that when the switching of the electronic control unit is frequent, it is easy to cause fatigue of the connector, resulting in unstable connection abnormalities, thus leading to abnormal test results or inability to test.

[0004] The utility model provides an extended connection device, which includes a device body and a plurality of switches. The plurality of switches are arranged in sequence in the device body. Each switch includes a signal input group, a first signal output group and a second signal output group. The first signal output group and the second signal output group of each switch are respectively electrically connected to two other switches. The switch has a first gear position and a second gear position. When the switch is in the first gear position, the signal input group is electrically connected to the first signal output group. When the switch is in the second gear position, the signal input group is electrically connected to the second signal output group.

[0005] Beneficial effects: Since the first signal output group and the second signal output group of each switch are respectively electrically connected to two other switches, and since each switch is electrically connected to a controller, when the switch is in the first gear position, the signal input group is electrically connected to the first signal output group, thereby realizing the electrical connection between the controller directly connected to the signal input group and the controller directly connected to the first signal output group. When the switch is in the second gear position, the signal input group is electrically connected to the second signal output group, realizing the electrical connection between the controller directly connected to the signal input group and the controller directly connected to the second signal output group. It is possible to freely switch the one-to-one communication objects of multiple controllers without frequently unplugging and plugging the wiring harness, avoiding the problem of poor plug fatigue, ensuring the stability of the connection between controllers of multiple project types and the test system, ensuring the smooth progress of the test, and ensuring the accuracy of the test results.

[0006] In an alternative embodiment, there are three switches. The first signal output group of the first switch is electrically connected to the second signal output group of the second switch; the second signal output group of the first switch is electrically connected to the first signal output group of the third switch; the first signal output group of the second switch is electrically connected to the second signal output group of the third switch.

[0007] Advantageous effects: By electrically connecting the first signal output group of the first switch to the second signal output group of the second switch, when the first switch is in the first gear and the second switch is in the second gear, the electrical connection between the first controller and the second controller can be achieved; by electrically connecting the second signal output group of the first switch to the first signal output group of the third switch, when the first switch is in the second gear and the third switch is in the first gear, the electrical connection between the first controller and the third controller can be achieved; by electrically connecting the first signal output group of the second switch to the second signal output group of the third switch, when the second switch is in the first gear and the third switch is in the second gear, the electrical connection between the second controller and the third controller can be achieved.

[0008] In an alternative embodiment, it further includes multiple sets of plug connectors. The multiple sets of plug connectors are respectively electrically connected to the signal input groups of the multiple switches; the plug connectors are used to be electrically connected to the controller or to another expansion connection device.

[0009] Advantageous effects: Since the plug connectors can be electrically connected to the controller and can also be electrically connected to another expansion connection device, the free combination of multiple expansion connection devices can be realized, which is convenient for the free expansion of the expansion connection device.

[0010] In an alternative embodiment, the device body includes a housing, the switches are arranged in the housing, and multiple sets of plug connectors are respectively arranged on different sides of the housing.

[0011] Advantageous effects: By respectively arranging multiple sets of plug connectors on different sides of the housing, it is convenient for the multiple sets of plug connectors to be respectively electrically connected to multiple controllers or expansion connection devices, and interference between multiple controllers or expansion connection devices can be avoided.

[0012] In an alternative embodiment, it further includes a circuit board, the circuit board is arranged in the device body; multiple switches are all arranged on the circuit board.

[0013] Advantageous effects: Since multiple switches are all arranged on the circuit board, the integrated control of multiple switches is realized; and the stable connection between the switches and the circuit board is ensured, making the signal transmission more accurate and stable, and improving the overall performance of the expansion connection device.

[0014] In an alternative embodiment, the switch includes a switch body and a sliding structure; the switch body is fixed on the circuit board; the signal input group, the first signal output group, and the second signal output group are all arranged in the switch body; the sliding structure is slidably connected to the switch body and is used to control the electrical connection between the signal input group and the first signal output group or the second signal output group.

[0015] Beneficial effects: Through the arrangement of the sliding structure, the electrical connection between the signal input group and the first signal output group or the second signal output group is realized, and the switching of different gears of the switch is realized, which is simple and convenient to operate.

[0016] In an alternative embodiment, the sliding structure includes a slider and a connection component; the slider is slidably connected to the switch body; the connection component is connected to the slider; one end of the connection component is electrically connected to the signal input group, and the other end is adapted to be electrically connected to the first signal output group or the second signal output group under the drive of the slider.

[0017] Beneficial effects: Through the arrangement of the connection component, when the switch switches between different gears, it can ensure that the sliding structure is always connected to the signal input group, ensuring the connection between the signal input group and the first signal output group when the switch is in the first gear, and the connection between the signal input group and the second signal output group when the switch is in the second gear.

[0018] In an alternative embodiment, the signal input group and the first signal output group and the second signal output group are respectively arranged opposite to each other at both ends of the connection component.

[0019] Beneficial effects: By respectively arranging the signal input group and the first signal output group and the second signal output group opposite to each other at both ends of the connection component, it is ensured that one end of the connection component can be connected to the signal input group, and the other end can be connected to the first signal output group or the second signal output group under the drive of the slider.

[0020] In an alternative embodiment, the switch is a double-throw switch.

[0021] Beneficial effects: By setting the switch as a double-throw switch, it has greater flexibility and can control two circuits simultaneously to achieve simple logical control.

[0022] In an alternative embodiment, the switch is a multi-position output switch.

[0023] Beneficial effects: By setting the switch as a multi-position output switch, more gear switching of the switch can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of an extended connection device of an embodiment of the present utility model connected to multiple controllers;

[0026] Figure 2 Structural schematic diagram of multiple extended connection devices of an embodiment of the present utility model connected to multiple controllers;

[0027] Figure 3 Electrical schematic diagram of the extended connection device of an embodiment of the present utility model;

[0028] Figure 4 Top view of the extended connection device of an embodiment of the present utility model;

[0029] Figure 5 Right view of the extended connection device of an embodiment of the present utility model;

[0030] Figure 6 Left view of the extended connection device of an embodiment of the present utility model;

[0031] Figure 7 Front view of the extended connection device of an embodiment of the present utility model.

[0032] Explanation of reference numerals:

[0033] 1. Device body; 2. Switch; 21. Signal input group; 211. Input pin; 22. First signal output group; 221. First output pin; 23. Second signal output group; 231. Second output pin; 24. Switch body; 25. Sliding structure; 251. Connection component; 3. Controller; 4. Connector. Specific embodiments

[0034] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0035] The following will describe embodiments of the present utility model in conjunction with Figures 1 to 7 , and describe embodiments of the present utility model.

[0036] According to an embodiment of the present utility model, on the one hand, a connection expansion device is provided, including a device body 1 and a plurality of switches 2; the plurality of switches 2 are arranged in sequence in the device body 1; the switch 2 includes a signal input group 21, a first signal output group 22, and a second signal output group 23, and the first signal output group 22 and the second signal output group 23 of each switch 2 are respectively electrically connected to two other switches 2; the switch 2 is provided with a first gear position and a second gear position, when the switch 2 is in the first gear position, the signal input group 21 is electrically connected to the first signal output group 22; when the switch 2 is in the second gear position, the signal input group 21 is electrically connected to the second signal output group 23; each switch 2 is adapted to be electrically connected to a controller 3.

[0037] Since the first signal output group 22 and the second signal output group 23 of each switch 2 are respectively electrically connected to two other switches 2, and since each switch 2 is electrically connected to a controller 3, when the switch 2 is in the first gear position, the signal input group 21 is electrically connected to the first signal output group 22, thereby realizing the electrical connection between the controller 3 directly connected to the signal input group 21 and the controller 3 directly connected to the first signal output group 22; when the switch 2 is in the second gear position, the signal input group 21 is electrically connected to the second signal output group 23, realizing the electrical connection between the controller 3 directly connected to the signal input group 21 and the controller 3 directly connected to the second signal output group 23. Without frequent unplugging of the wire harness, multiple controllers 3 can freely switch one-to-one communication objects, avoiding the problem of poor plug fatigue, ensuring the stability of the connection between multiple project type controllers 3 and the test system, ensuring the smooth progress of the test, and ensuring the accuracy of the test results.

[0038] In one embodiment, there are three switches 2, the first signal output group 22 of the first switch 2 is electrically connected to the second signal output group 23 of the second switch 2; the second signal output group 23 of the first switch 2 is electrically connected to the first signal output group 22 of the third switch 2; the first signal output group 22 of the second switch 2 is electrically connected to the second signal output group 23 of the third switch 2.

[0039] Exemplarily, the first switch 2 and the first controller 3 are electrically connected, the second switch 2 and the second controller 3 are electrically connected, and the third switch 2 and the third controller 3 are electrically connected. By electrically connecting the first signal output group 22 of the first switch 2 to the second signal output group 23 of the second switch 2, when the first switch 2 is in the first gear position and the second switch 2 is in the second gear position, the electrical connection between the first controller 3 and the second controller 3 can be achieved; by electrically connecting the second signal output group 23 of the first switch 2 to the first signal output group 22 of the third switch 2, when the first switch 2 is in the second gear position and the third switch 2 is in the first gear position, the electrical connection between the first controller 3 and the third controller 3 can be achieved; by electrically connecting the first signal output group 22 of the second switch 2 to the second signal output group 23 of the third switch 2, when the second switch 2 is in the first gear position and the third switch 2 is in the second gear position, the electrical connection between the second controller 3 and the third controller 3 can be achieved.

[0040] In an alternative embodiment, it can also be that the first signal output group 22 of the first switch 2 is electrically connected to the first signal output group 22 of the second switch 2. When the first switch 2 is in the first gear position and the second switch 2 is in the first gear position, the electrical connection between the first controller 3 and the second controller 3 can be achieved; the second signal output group 23 of the first switch 2 is electrically connected to the second signal output group 23 of the third switch 2; when the first switch 2 is in the second gear position and the third switch 2 is in the second gear position, the electrical connection between the first controller 3 and the third controller 3 can be achieved; the second signal output group 23 of the second switch 2 is electrically connected to the first signal output group 22 of the third switch 2; when the second switch 2 is in the second gear position and the third switch 2 is in the first gear position, the electrical connection between the second controller 3 and the third controller 3 can be achieved.

[0041] In an alternative embodiment, it can also be that there are four switches 2. The first signal output group 22 of the first switch 2 is electrically connected to the second signal output group 23 of the second switch 2; the first signal output group 22 of the second switch 2 is electrically connected to the first signal output group 22 of the third switch 2; the second signal output group 23 of the third switch 2 is electrically connected to the first signal output group 22 of the fourth switch 2; the second signal output group 23 of the fourth switch 2 is electrically connected to the second signal output group 23 of the first switch 2; and so on. The switch 2 can also have five, six or more, which can be set according to the actual situation.

[0042] In one embodiment, it further includes multiple sets of connectors 4, and multiple sets of the connectors 4 are respectively electrically connected to the signal input groups 21 of the multiple switches 2; the connectors 4 are used to be electrically connected to the controller 3 or to another extension connection device.

[0043] Since the connector 4 can be electrically connected to the controller 3 and can also be electrically connected to another extension connection device, free combination of multiple extension connection devices can be realized, facilitating the free expansion of the extension connection device.

[0044] In an implementation manner of this embodiment, there are three switches 2 in one extension connection device; there are three sets of connectors 4, and they are respectively connected to the three switches 2 in one-to-one correspondence; there is one extension connection device, and the three connectors 4 are respectively electrically connected to three controllers 3.

[0045] In an implementation manner of this embodiment, there are three switches 2 in one extension connection device; there are three sets of connectors 4, and they are respectively connected to the three switches 2 in one-to-one correspondence; there are multiple extension connection devices, and the multiple extension connection devices are connected in sequence; when the extension connection device is in the middle, two of the connectors 4 of the extension connection device are respectively electrically connected to the adjacent two extension connection devices, and the remaining one connector 4 is electrically connected to one controller 3; when the extension connection device is at the end, one of the connectors 4 of the extension connection device is electrically connected to the adjacent one extension connection device, and the remaining two connectors 4 are respectively electrically connected to two controllers 3.

[0046] In one embodiment, the device body 1 includes a housing, the switch 2 is arranged in the housing, and multiple sets of the connectors 4 are respectively arranged on different sides of the housing.

[0047] By respectively arranging multiple sets of connectors 4 on different sides of the housing, it is convenient for multiple sets of connectors 4 to be respectively electrically connected to multiple controllers 3 or extension connection devices, avoiding interference between multiple controllers 3 or extension connection devices.

[0048] In one embodiment, it further includes a circuit board, and the circuit board is arranged in the device body 1; multiple switches 2 are all arranged on the circuit board.

[0049] Since multiple switches 2 are all arranged on the circuit board, integrated control of multiple switches 2 is realized; and the stable connection between the switch 2 and the circuit board is ensured, making the signal transmission more accurate and stable, and improving the overall performance of the extension connection device.

[0050] In a specific implementation manner, multiple switches 2 are all welded to the circuit board.

[0051] In one embodiment, the switch 2 includes a switch body 24 and a sliding structure 25; the switch body 24 is fixed on the circuit board; the signal input group 21, the first signal output group 22, and the second signal output group 23 are all arranged in the switch body 24; the sliding structure 25 is slidably connected to the switch body 24 and is used to control the electrical connection between the signal input group 21 and the first signal output group 22, or the electrical connection with the second signal output group 23.

[0052] Through the arrangement of the sliding structure 25, the electrical connection between the signal input group 21 and the first signal output group 22 or the second signal output group 23 is realized, and the switching of different gears of the switch 2 is realized, and the operation is simple and convenient.

[0053] In one embodiment, the sliding structure 25 includes a slider and a connection component 251; the slider is slidably connected to the switch body 24; the connection component 251 is connected to the slider; one end of the connection component 251 is electrically connected to the signal input group 21, and the other end is adapted to be electrically connected to the first signal output group 22 or the second signal output group 23 under the drive of the slider.

[0054] Through the arrangement of the connection component 251, when the switch 2 switches between different gears, it can be ensured that the sliding structure 25 is always electrically connected to the signal input group 21, ensuring the electrical connection between the signal input group 21 and the first signal output group 22 when the switch 2 is in the first gear, and the electrical connection between the signal input group 21 and the second signal output group 23 when the switch 2 is in the second gear.

[0055] In one embodiment, the signal input group 21 and the first signal output group 22 and the second signal output group 23 are respectively arranged opposite to each other at both ends of the connection component 251.

[0056] By respectively arranging the signal input group 21 and the first signal output group 22 and the second signal output group 23 opposite to each other at both ends of the connection component 251, it is ensured that one end of the connection component 251 can be connected to the signal input group 21, and the other end can be electrically connected to the first signal output group 22 or the second signal output group 23 under the drive of the slider.

[0057] In one embodiment, the switch 2 is a double-throw switch.

[0058] By setting the switch 2 as a double-throw switch, the switch 2 can be directly switched between the first gear and the second gear by toggling the button up and down, which has greater flexibility and can control two circuits at the same time to achieve simple logical control.

[0059] In a specific embodiment, such as Figure 3As shown, the signal input group 21 includes two input pins 211, and the two input pins 211 are arranged at intervals in sequence; the first signal output group 22 includes two first output pins 221, the second signal output group 23 includes two second output pins 231, and the two first output pins 221 and the two second output pins 231 are arranged in a crossed and spaced manner in sequence, that is, the two first output pins 221 and the two second output pins 231 are arranged in the order of one first output pin 221, one second output pin 231, the other first output pin 221, and the other second output pin 231; the connection component 251 includes two connection members, one ends of the two connection members are electrically connected to the two input pins 211 respectively, and the other ends are electrically connected to the two first output pins 221 respectively, or electrically connected to the two second output pins 231.

[0060] In one embodiment, the switch 2 is a multi - gear output switch.

[0061] By setting the switch 2 as a multi - gear output switch, more gear switching of the switch 2 can be realized. Among them, the multi - gear output switch includes three or more gears, that is, the switch 2 is provided with three or more signal output groups.

[0062] In a specific embodiment, the switch 2 may further include a third signal output group, and the switch 2 may further be provided with a third gear. When the switch 2 is in the third gear, the signal input group 21 is electrically connected to the third signal output group.

[0063] In a specific embodiment, the switch 2 may further include a fourth signal output group, and the switch 2 may further be provided with a fourth gear. When the switch 2 is in the fourth gear, the signal input group 21 is electrically connected to the fourth signal output group. By analogy, the switch 2 may further include a fifth signal output group, a sixth signal output group or an Nth signal output group, which can be set according to actual situations.

[0064] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An extended connection device, characterized in that, Including: The device body (1); A plurality of switches (2), arranged in sequence within the device body (1); each switch (2) includes a signal input group (21), a first signal output group (22), and a second signal output group (23), and the first signal output group (22) and the second signal output group (23) of each switch (2) are respectively electrically connected to two other switches (2); The switch (2) is provided with a first gear position and a second gear position. When the switch (2) is in the first gear position, the signal input group (21) is electrically connected to the first signal output group (22); when the switch (2) is in the second gear position, the signal input group (21) is electrically connected to the second signal output group (23).

2. The extended connection device according to claim 1, wherein There are three switches (2). The first signal output group (22) of the first switch (2) is electrically connected to the second signal output group (23) of the second switch (2); the second signal output group (23) of the first switch (2) is electrically connected to the first signal output group (22) of the third switch (2); the first signal output group (22) of the second switch (2) is electrically connected to the second signal output group (23) of the third switch (2).

3. The extended connection device according to claim 1, characterized in that It further includes multiple groups of plug connectors (4), and multiple groups of the plug connectors (4) are respectively electrically connected to the signal input groups (21) of the multiple switches (2); the plug connectors (4) are used to be electrically connected to the controller (3) or to another expansion connection device.

4. The extended connection device according to claim 3, characterized in that, The device body (1) includes a housing, the switches (2) are arranged within the housing, and multiple groups of the plug connectors (4) are respectively arranged on different sides of the housing.

5. The extended connection device according to claim 1, wherein It further includes a circuit board, the circuit board is arranged within the device body (1); multiple switches (2) are all arranged on the circuit board.

6. The extended connection device according to claim 5, characterized in that, The switch (2) includes: A switch body (24), fixed on the circuit board; the signal input group (21), the first signal output group (22), and the second signal output group (23) are all arranged within the switch body (24); A sliding structure (25), slidably connected to the switch body (24), for controlling the electrical connection between the signal input group (21) and the first signal output group (22), or the electrical connection with the second signal output group (23).

7. The extended connection device according to claim 6, wherein, The sliding structure (25) includes: A slider, slidably connected to the switch body (24); A connection component (251), connected to the slider; one end of the connection component (251) is electrically connected to the signal input group (21), and the other end is adapted to be electrically connected to the first signal output group (22) or the second signal output group (23) under the drive of the slider.

8. The extended connection device according to claim 7, characterized in that The signal input group (21) and the first signal output group (22) and the second signal output group (23) are respectively oppositely arranged at both ends of the connection component (251).

9. The extended connection device according to any one of claims 1 to 8, characterized in that The switch (2) is a double-throw switch (2).

10. The extended connection device according to any one of claims 1 to 8, characterized in that, The switch (2) is a multi-gear output switch (2).

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