Signal transfer box

Abstract

The utility model provides a signal transfer box, and the input end and the output end of a box body of the signal transfer box are respectively connected with a transfer box male end wiring plug and a transfer box female end wiring plug, and the transfer box male end wiring plug is connected to a female end plug of a to-be-tested vehicle-mounted controller. A female end wiring plug of the transfer box is connected to a male end plug of a vehicle-mounted controller to be tested, a plurality of on-off sockets are arranged on a test panel of the box body, each on-off socket comprises a pin signal wire inlet end and a pin signal wire outlet end which are respectively connected with an input end and an output end of the box body, and the pin signal wire inlet end and the pin signal wire outlet end are connected with the input end and the output end of the box body. And each on-off socket is also connected with one on-off plug. Thus, through plugging of the on-off plug, on-off test of signals can be realized, thereby standardizing test operation of simulating a line fault of a vehicle-mounted controller, and prolonging the service life of a controller plug-in.

Description

Technical Field

[0001] This application relates to the technical field of electric vehicles, and more particularly, to a signal transfer box. Background Art

[0002] During the software development of the electric system of new energy vehicles for the entire vehicle, testing and verification are important processes. In order to achieve standardized and effective testing and verification, it is necessary to build corresponding testing and diagnostic environments to simulate test contents such as hard-wired faults and abnormal electrical signals. Each system controller of new energy vehicles, such as the vehicle controller, battery management system controller, drive unit controller, etc., communicates with each other through wire harnesses. Currently, the solutions for simulating the line faults of the controller itself usually require frequent plugging and unplugging of the male end connectors of the controller or the pins of the wire harness. This method is not standardized and is likely to cause the pins of the wire harness to become loose later and reduce the service life of the controller connectors. Utility Model Content

[0003] The purpose of this application is to provide a signal transfer box, aiming to solve the problems in the related art that the solutions for simulating vehicle line faults require frequent plugging and unplugging of the male end connectors of the controller or the pins of the wire harness, which are not standardized and are likely to cause the pins of the wire harness to become loose later and reduce the service life of the controller connectors.

[0004] A signal transfer box provided by this application includes a box body, which includes a test panel; the test panel is provided with a plurality of on-off sockets, and each on-off socket includes a pin signal inlet end and a pin signal outlet end. The pin signal inlet end is connected to the input end of the box body, and the pin signal outlet end is connected to the output end of the box body; each on-off socket is connected to an on-off plug for controlling signal on-off; a male terminal wiring plug of the transfer box is respectively connected to the female terminal plug of the vehicle-mounted controller to be tested and the input end of the box body; a female terminal wiring plug of the transfer box is respectively connected to the male terminal plug of the vehicle-mounted controller to be tested and the output end of the box body.

[0005] In the above implementation process, a signal transfer box is provided. The input end and the output end of the box body of the signal transfer box are respectively connected to the male terminal wiring plug and the female terminal wiring plug of the transfer box. The male terminal wiring plug of the transfer box is connected to the female terminal plug of the vehicle-mounted controller to be tested, and the female terminal wiring plug of the transfer box is connected to the male terminal plug of the vehicle-mounted controller to be tested. A plurality of on-off sockets are provided on the test panel of the box body. Each on-off socket includes a pin signal inlet end and a pin signal outlet end, which are respectively connected to the input end and the output end of the box body. Each on-off socket is also connected to an on-off plug. In this way, by plugging and unplugging the on-off plug, the on-off test of the signal can be realized, thereby standardizing the test operation of simulating the line faults of the vehicle-mounted controller and improving the service life of the controller connectors.

[0006] Further, in some embodiments, the number of the on-off sockets is the same as the number of signal pins of the vehicle-mounted controller under test.

[0007] In the above implementation process, a design method for the number of on-off sockets of the test panel is provided.

[0008] Further, in some embodiments, the on-off plug is a banana plug with a diameter of 2 mm.

[0009] In the above implementation process, an optional type of on-off plug is provided.

[0010] Further, in some embodiments, the input end of the box body is connected to the male wiring plug of the adapter box through a composite shielded cable for transmitting signals; the output end of the box body is connected to the female wiring plug of the adapter box through a composite shielded cable for transmitting signals.

[0011] In the above implementation process, signals are transmitted through a composite shielded cable, effectively improving the anti-interference ability of the signal adapter box.

[0012] Further, in some embodiments, the test panel is provided with a shielding ground point; the shielding ground point is grounded.

[0013] In the above implementation process, the test panel is provided with a shielding ground point to establish a reliable grounding connection between the shielding layer and the ground, so that during the process of adding resistance or signal transmission on the test panel, the generated electromagnetic interference can be guided to the ground, thereby ensuring the integrity and reliability of the signal.

[0014] Further, in some embodiments, the test panel is made of amorphous alloy material.

[0015] In the above implementation process, a test panel of the box body is made of amorphous alloy material with high magnetic permeability, thereby improving the sensitivity and accuracy of the test, and at the same time extending the service life of the test panel.

[0016] Further, in some embodiments, the surface of the test panel includes a galvanized layer; the thickness of the galvanized layer is 1 μm.

[0017] In the above implementation process, during the manufacturing process of the test panel, a 1-μm galvanized layer is added, which effectively controls the cost while ensuring a certain anti-corrosion performance.

[0018] Other features and advantages disclosed in this application will be described in the subsequent specification, or, some features and advantages can be inferred from the specification or determined without doubt, or can be known by implementing the above technologies disclosed in this application.

[0019] To make the above objects, features, and advantages of the present application more obvious and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of a signal transfer box provided for an embodiment of the present application;

[0022] Figure 2 Schematic diagram of another signal transfer box provided for an embodiment of the present application;

[0023] Figure 3 Schematic diagram of the structure of the test panel of the signal transfer box provided for an embodiment of the present application.

[0024] Wherein: 10 - box body; 11 - male terminal wiring plug of the transfer box; 12 - female terminal wiring plug of the transfer box; 13 - test panel; 14 - pin signal inlet end; 15 - pin signal outlet end; 16 - on-off plug; 17 - composite shielded cable; 18 - shield grounding point. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all of them. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element, or component must have a specific orientation or be constructed and operated in a specific orientation.

[0027] Moreover, in addition to being used to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0028] In addition, the terms "installed", "set up", "provided with", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or a point connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] As recorded in the background art, in the related art, the solutions for simulating automotive circuit faults have problems such as the need to frequently plug and unplug the male end connectors of the controller or the wire harness pins, which is not standardized and easily causes the wire harness pins to become loose later and reduces the service life of the controller plug-ins. Based on this, the embodiments of this application provide a signal transfer box to solve the above problems.

[0031] Next, the embodiments of this application will be introduced:

[0032] As Figure 1 shown, Figure 1 is a schematic diagram of a signal transfer box provided by an embodiment of this application. The signal transfer box includes:

[0033] A box body 10, including a test panel 13; the test panel 13 is provided with a plurality of on-off sockets, and each on-off socket includes a pin signal inlet end 14 and a pin signal outlet end 15. The pin signal inlet end 14 is connected to the input end of the box body 10, and the pin signal outlet end 15 is connected to the output end of the box body 10; each on-off socket is connected to an on-off plug 16 for controlling signal on-off;

[0034] A male terminal wiring plug 11 of the transfer box, which is respectively connected to the female plug of the vehicle-mounted controller to be tested and the input end of the box body 10;

[0035] The female terminal wiring plug 12 of the adapter box is respectively connected to the male terminal plug of the to-be-tested vehicle-mounted controller and the output terminal of the box body 10.

[0036] The above signal adapter box is an adapter device that leads out the electrical signals emitted by the to-be-tested vehicle-mounted controller to the test panel, and can be applied to the vehicle test and verification of the software of the electric system of new energy vehicles. The to-be-tested vehicle-mounted controller here can be any one of a vehicle controller, a battery management system controller, a drive unit controller, etc.

[0037] Specifically, in the above signal adapter box, the input terminal and the output terminal of the box body are respectively connected to the male terminal wiring plug of the adapter box and the female terminal wiring plug of the adapter box. The male terminal wiring plug of the adapter box is connected to the female terminal plug of the to-be-tested vehicle-mounted controller for introducing signals to the test panel, while the female terminal wiring plug of the adapter box is connected to the male terminal plug of the to-be-tested vehicle-mounted controller for leading out signals from the test panel, forming a signal interaction closed loop. In some embodiments, the input terminal of the box body is connected to the male terminal wiring plug of the adapter box through a composite shielded cable for transmitting signals; the output terminal of the box body is connected to the female terminal wiring plug of the adapter box through a composite shielded cable for transmitting signals. That is to say, in this signal adapter box, the signal transmission line uses a composite shielded cable. A composite shielded cable generally refers to a cable with two or more shield layer structures. These shield layers are usually made of conductive materials such as copper and aluminum, and are combined together through specific processes to form a multi-layer shielding effect. Therefore, using a composite shielded cable can effectively improve the anti-interference ability and electromagnetic compatibility of the signal adapter box.

[0038] A test panel is provided on the box body. The test panel is designed with a plurality of on-off sockets. Each on-off socket has two jacks. One jack is the pin signal incoming line end for introducing signals to the test panel, and the other jack is the pin signal outgoing line end for leading out signals from the test panel. A circuit board for arranging the detection circuit is provided inside the box body, and these plurality of on-off sockets are respectively connected to their corresponding detection circuits. An on-off plug is connected to each on-off socket. Here, the on-off plug is used to control the signal on and off. Optionally, the on-off plug is a banana plug with a diameter of 2 mm. When the on-off socket is plugged with the on-off plug, the signal is conducted on the detection circuit. When the signal needs to be disconnected, just pull out the on-off plug from the on-off socket. In this way, by plugging and unplugging the on-off plug, tests such as signal on and off tests, ground and power short circuit tests, and external resistance tests can be carried out, so as to standardize the test operation, shorten the test time, and improve the service life of the controller plug-in.

[0039] In some embodiments, the number of on-off sockets is the same as the number of signal pins of the vehicle controller to be tested. That is, the number of on-off sockets on the test panel can be designed according to the number of signal pins of the vehicle controller to be tested. For example, if the number of signal pins of a vehicle controller is 54, then when designing a signal transfer box for simulating a line fault of the vehicle controller, 54 on-off sockets can be designed on the test panel, with 6 on-off sockets arranged in each row, for a total of 9 rows.

[0040] In some embodiments, the test panel is made of amorphous alloy material. That is to say, the test panel of the box can be made of amorphous alloy material with high magnetic permeability. High magnetic permeability means that it is very sensitive to changes in the magnetic field. Therefore, during the test process, the test panel can more accurately capture changes in the magnetic field, improve the sensitivity and accuracy of the test, and amorphous alloy materials usually have high strength and hardness, which enables the test panel to resist various external forces and wear during long-term use and extend its service life. In addition, the outer shell of the box can also be made of amorphous alloy material.

[0041] Furthermore, in some embodiments, the surface of the test panel includes a zinc coating; the thickness of the zinc coating is 1 μm. The main function of the zinc coating is to prevent the metal substrate from rusting, and a thinner zinc coating can reduce material costs and production costs. Thus, in the manufacturing process of the test panel, adding a zinc coating of 1 μm can effectively control costs while ensuring a certain anti-corrosion performance.

[0042] In addition, in some embodiments, the test panel is further provided with a shielding grounding point; the shielding grounding point is grounded. In other words, the test panel is provided with a shielding grounding point to achieve a reliable grounding connection between the shielding layer and the earth, so that during the process of adding resistance to the test panel or signal transmission, the electromagnetic interference generated is guided to the earth, thereby ensuring the integrity and reliability of the signal.

[0043] The embodiment of the present application provides a signal transfer box, the input end and the output end of the box of the signal transfer box are respectively connected to the male terminal wiring plug of the transfer box and the female terminal wiring plug of the transfer box, the male terminal wiring plug of the transfer box is connected to the female terminal plug of the vehicle controller to be tested, and the female terminal wiring plug of the transfer box is connected to the male terminal plug of the vehicle controller to be tested, and a plurality of on-off sockets are arranged on the test panel of the box, each on-off socket includes a pin signal input terminal and a pin signal output terminal, which are respectively connected to the input end and the output end of the box, and each on-off socket is also connected to an on-off plug. In this way, the on-off circuit test of the signal can be realized by plugging and unplugging the on-off plug, thereby standardizing the test operation of simulating the line fault of the vehicle controller and improving the life of the controller plug-in.

[0044] To provide a more detailed description of the solution of this application, a specific embodiment will be introduced next:

[0045] The solution of this embodiment provides a signal transfer box. As shown in Figure 2 it is based on the structure of the signal transfer box shown in Figure 1 A composite shielded cable 17 is used as the signal transmission line between the input end of the box body and the male connection plug of the transfer box, and between the output end and the female connection plug of the transfer box. In addition, a shield grounding point 18 is added, which is used to achieve a reliable grounding connection between the shield layer and the ground. In addition, an OBD vehicle diagnostic interface and a vehicle CAN communication channel of the J1939 protocol are respectively provided on the test panel of the signal transfer box, and the signals are led out to the test panel, which is also convenient for functions such as observation, recording, and measurement.

[0046] The structure of the test panel of the signal transfer box in the solution of this embodiment is as shown in Figure 3 It includes 54 continuity sockets, which are sequentially represented as the 1# signal pin to the 54# signal pin. In Figure 3 this, the continuity sockets at the four corners of the test panel 13 respectively correspond to the 1# signal pin, the 6# signal pin, the 49# signal pin, and the 54# signal pin; a continuity plug 16 (only one is schematically shown in the figure) is connected to each continuity socket. The definitions of the 1# signal pin to the 54# signal pin are the same as those of the vehicle-end controller signal pins;

[0047] During testing, the usage process of this signal transfer box includes:

[0048] S301. Connect the male connection plug of the signal transfer box to the female connector of the vehicle-end controller;

[0049] S302. Connect the female connection plug of the signal transfer box to the male connector of the vehicle-end controller;

[0050] S303. Insert continuity plugs into the continuity sockets of the 1# signal pin to the 54# signal pin in the test panel of the signal transfer box;

[0051] S304. Start the vehicle;

[0052] S305. The electrical signals of the vehicle-end controller are introduced into the test panel of the signal transfer box;

[0053] S306. Realize signal observation, recording, and measurement directly at the top of the continuity plug;

[0054] S307. Realize signal continuity by directly pulling out the continuity plug;

[0055] S308. Realize short circuit, external resistance and other tests by directly connecting to the vehicle body at the top of the continuity plug;

[0056] S309. Realize the vehicle CAN data acquisition by connecting the OBD interface in the test panel.

[0057] The solution of this embodiment has at least the following advantages: First, resist interference by grounding the shielding layer and using a composite shielded cable, effectively realizing anti-interference in the signal process and improving the integrity and reliability of the signal; Second, by inserting and unplugging the on-off plug, the signal can be tested for continuity and open circuit, as well as tested for short circuit to ground, short circuit to power supply, external resistance, etc., realizing the standardization of test operations, shortening the test time, increasing the service life of the controller plug-in, and effectively avoiding insufficient test verification and frequent plugging and unplugging of the control male connector or wire harness pins.

[0058] In all embodiments of the present application, "big", "small" are relative, "many", "few" are relative, "up", "down" are relative, and for the expression of such relative terms, the embodiments of the present application will not elaborate further.

[0059] It should be understood that the "in this embodiment", "in the embodiments of the present application" or "as an optional implementation manner" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the "in this embodiment", "in the embodiments of the present application" or "as an optional implementation manner" that appear throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0060] In various embodiments of the present application, it should be understood that the magnitude of the sequence numbers of the above processes does not necessarily mean the inevitable sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0061] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A signal transfer box, characterized in that, Comprising: A box body, including a test panel; multiple on-off sockets are arranged on the test panel, each on-off socket includes a pin signal inlet end and a pin signal outlet end, the pin signal inlet end is connected to the input end of the box body, and the pin signal outlet end is connected to the output end of the box body; each on-off socket is connected to an on-off plug for controlling signal on-off; A male connection plug of the adapter box, which is respectively connected to the female plug of the vehicle-mounted controller to be tested and the input end of the box body; A female connection plug of the adapter box, which is respectively connected to the male plug of the vehicle-mounted controller to be tested and the output end of the box body.

2. The signal transfer box according to claim 1, characterized in that, The number of the on-off sockets is the same as the number of signal pins of the vehicle-mounted controller to be tested.

3. The signal transfer box according to claim 1, characterized in that, The on-off plug is a banana plug with a diameter of 2 mm.

4. The signal transfer box according to claim 1, wherein The input end of the box body is connected to the male connection plug of the adapter box through a composite shielded cable for transmitting signals; the output end of the box body is connected to the female connection plug of the adapter box through a composite shielded cable for transmitting signals.

5. The signal transfer box according to claim 4, characterized in that, The test panel is provided with a shielded grounding point; the shielded grounding point is grounded.

6. The signal transfer box according to claim 1, characterized in that, The test panel is made of amorphous alloy material.

7. The signal transfer box according to claim 6, wherein The surface of the test panel includes a galvanized layer; the thickness of the galvanized layer is 1 μm.

Images