Novel wiring device and battery charging and discharging test system

Abstract

The utility model discloses a novel wiring device. The novel wiring device comprises a device shell, the device upper cover is arranged at the top of the device shell; the device upper cover is provided with a first opening combination; the first open hole combination comprises a plurality of pairs of first open holes, and each pair of first open holes comprises two first open holes; each first opening is provided with a first wiring female end conversion terminal; a plurality of second open holes are formed in a front side panel of the device shell; each second opening is provided with a second wiring female end conversion terminal; each first wiring female end conversion terminal is in plug-in connection with one male end binding post and is connected with a low-voltage power supply line output end or a communication line access end of a battery system to be tested through the male end binding post; and each second wiring female end conversion terminal is connected with one male end binding post in an inserting manner, and is connected with a low-voltage power supply line input end or a communication line output end of the battery charging and discharging test equipment through the male end binding post. According to the utility model, a plug-in connection mode is adopted, and rapid remodeling of different lines can be realized through operation of a plug board.

Description

Technical Field

[0001] This utility model relates to the field of battery charging and discharging testing technology, such as vehicle-mounted and energy storage batteries, and in particular to a novel wiring device and battery charging and discharging testing system. Background Technology

[0002] Currently, some battery charging and discharging testing equipment in vehicle-mounted and energy storage applications uses a direct wire-spinning method for its low-voltage power supply and communication outputs (i.e., low-voltage power supply lines and communication lines). When it is necessary to change the type of the line, since the line is a twisted connection, it is necessary to disconnect the line, find the new line, and then replace it with a different line. Therefore, not only is the replacement inefficient, but the wire disconnection operation also wastes the insulation material wrapped around the wire harness. At the same time, it is not conducive to checking the line connection.

[0003] Furthermore, the existing direct wire-spinning method can only identify different wires by color and wire markings. If the wire markings have fallen off or the wire surface is damaged and blurred, it is not conducive to distinguishing the wires, which can easily lead to incorrect wiring, damage to the BMS system (i.e., battery management system) in the battery system under test, and incorrect connection of test channels, which in turn can lead to safety accidents such as overcharging and over-discharging during testing.

[0004] Therefore, there is an urgent need to develop a technology that can solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to address the technical deficiencies of the existing technology by providing a novel wiring device and a battery charging and discharging test system.

[0006] Therefore, this utility model provides a novel wiring device, characterized in that it includes: a device housing, a device top cover, a female wiring adapter terminal, and a male wiring post;

[0007] The device has a hollow housing with a rectangular opening at the top;

[0008] The top of the device housing is covered by horizontally distributed device covers;

[0009] The device cover is provided with a first set of openings arranged horizontally.

[0010] The first opening combination includes multiple pairs of first openings that are equally spaced laterally, and each pair of first openings includes two first openings that are symmetrically distributed front and back.

[0011] Each first opening is fixedly provided with a first female terminal adapter;

[0012] Among them, multiple longitudinal through second openings are provided at equal intervals on the front side panel of the device housing;

[0013] Each second opening is fixedly provided with a second female terminal adapter;

[0014] Each second female terminal is respectively set to correspond to a pair of first openings;

[0015] Each of the first female terminals is plugged into a male terminal, which is connected to the output of the low-voltage power supply line or the communication access terminal of the communication line of the battery system under test.

[0016] Each second female connector is plugged into a male terminal, which is then connected to the input of the low-voltage power supply line or the communication output of the communication line of the battery charging and discharging test equipment.

[0017] In addition, this utility model also provides a battery charging and discharging test system, including battery charging and discharging test equipment and the novel wiring device as described above;

[0018] The battery charge / discharge testing equipment is connected to the battery system to be tested via the novel wiring device.

[0019] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides a novel wiring device and battery charging and discharging test system. Its structure is scientifically designed and adopts a plug-in connection method. When it is necessary to change different circuits, it can be quickly changed through a quick plug-in operation, which has significant practical significance.

[0020] In addition, by applying this utility model, since there is no need to disassemble the wires, there will be no waste of the insulation material wrapped around the wire harness.

[0021] Furthermore, this invention can fix the low-voltage power supply line and communication line (i.e., low-voltage power supply line and communication line) of the test channel of the battery charge and discharge test equipment by marking them with different silkscreens. This facilitates the differentiation of each line, solves the problem of incorrect line connection, avoids damage to the BMS system (i.e., battery management system) in the battery system under test and avoids incorrect connection of the test channel, and effectively prevents safety accidents such as overcharging and over-discharging during testing.

[0022] Furthermore, by applying this utility model, it is also beneficial to quickly check the correctness and reliability of wire harness connections, and the operation is convenient. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a novel wiring device provided by this utility model;

[0024] Figure 2A schematic diagram of the structure of the female terminal adapter (i.e., a terminal block) in a novel wiring device provided by this utility model;

[0025] Figure 3 A schematic diagram of the internal structure of the housing in a novel wiring device provided by this utility model;

[0026] Figure 4 A schematic diagram of the structure of the upper cover of a novel wiring device provided by this utility model;

[0027] Figure 5 This is a partially enlarged schematic diagram of the internal wiring of this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] See Figures 1 to 5 This utility model provides a novel wiring device, including: a device housing 300, a device top cover 400, a female wiring adapter terminal 101, and a male wiring post 102;

[0033] The hollow device housing 300 has a rectangular opening at the top;

[0034] The top of the device housing 300 is covered by a horizontally distributed device cover 400;

[0035] The device cover 400 is provided with a first set of openings arranged horizontally.

[0036] The first opening combination includes multiple pairs (e.g., eight pairs) of first openings distributed laterally at equal intervals, and each pair of first openings includes two first openings 106 symmetrically distributed front and back.

[0037] A first female terminal adapter 101 is fixedly provided on each first opening 106;

[0038] Among them, multiple longitudinal through second openings are provided at equal intervals on the front side panel of the device housing 300;

[0039] Each second opening is fixedly provided with a second female terminal adapter 107;

[0040] Each second female connector 107 is respectively positioned directly opposite to a pair of first openings (e.g., located directly in front of a pair of first openings);

[0041] Each first female terminal 101 is plugged into a male terminal 102 (i.e., plug-in connection), and the male terminal 102 is connected to the output terminal of the low-voltage power supply line of the battery system under test or the communication access terminal of the communication line (communication connection and conductive connection).

[0042] Each second female terminal 107 is plugged into a male terminal 102 (i.e., plug-in connection), and is connected to the input terminal of the low-voltage power supply line or the communication output terminal of the communication line of the battery charge and discharge test equipment itself (communication connection and conductive connection) through the male terminal 102.

[0043] It should be noted that the first female terminal adapter 101 is used to plug into one end of a male terminal 102;

[0044] The second female terminal adapter 107 is used to be plugged into one end of a male terminal 102;

[0045] The other end of the male terminal 102, which is connected to the first female terminal adapter 101, is used to connect to the terminal of the low-voltage power supply line (specifically the output terminal) or the terminal of the communication line (specifically the communication access terminal) of the battery system under test.

[0046] It should be noted that the battery system under test includes multiple battery modules, which are connected in series, parallel, or a combination of series and parallel connections. Specifically, the battery system under test includes battery modules, voltage and temperature acquisition harnesses, a BMS management unit or battery system protection board unit, high-voltage connection units, low-voltage power supply, communication harness units, and other components. Currently, battery systems have been widely used in electric vehicles, energy storage, and other fields, and are mature battery products with existing technology; therefore, further details will not be provided here.

[0047] The other end of the male terminal 102, which is connected to the second female terminal adapter 107, is used to connect to the terminal of the low-voltage power supply line (specifically the input terminal) or the terminal of the communication line (specifically the communication output terminal) of the battery charging and discharging test equipment itself, that is, it can be selectively connected according to the user's needs.

[0048] In this utility model, specifically, the two first female terminal adapters 101 on each pair of first openings are respectively connected to a second female terminal adapter 107 directly in front of them, that is, there is a corresponding connection relationship.

[0049] In this utility model, specifically, a second female terminal adapter 107 is provided in front of the two first female terminal adapters 101 on each pair of first openings, and the longitudinal central axis of the second female terminal adapter 107 and the vertical central axis of the two first female terminal adapters 101 are located on the same longitudinal vertical plane.

[0050] In this utility model, specifically, the first female connector 101 is sealed in the opening 106.

[0051] In this utility model, for specific implementation, see [link to relevant documentation]. Figure 2 As shown, the first female connector 101 includes: a conductive rod 201, a fixed base insulating ring 202, and an insulating nut 204;

[0052] An insulating nut 204 for a terminal block is provided on the upper part of the conductive rod 201;

[0053] The lower part of the conductive rod 201 is fitted with a fixing base insulating ring 202;

[0054] There is a gap 203 for fixing the top cover between the bottom surface of the terminal insulating nut 204 and the top surface of the fixing base insulating ring 202;

[0055] The gap 203 is used to fix the top cover and to accommodate the top cover 400 of the device.

[0056] The conductive rod 201 passes vertically through the opening 106 on the device cover 400, and the bottom surface of the terminal insulating nut 204 and the top surface of the fixing base insulating ring 202 are in close contact with the upper and lower sides of the device cover 400, respectively.

[0057] In specific implementation, conductive rod 201 is a copper rod;

[0058] The lower end of the conductive rod 201 is used to connect (bolt or weld) the wire 200 located inside the device housing 300 (i.e., as a connecting wire);

[0059] In practice, the internal thread of the fixed base insulating ring 202 is threadedly fixedly connected to the external thread of the lower circumferential outer wall of the conductive rod 201.

[0060] In practice, the lower circumferential sidewall of the terminal insulating nut 204 is provided with external threads.

[0061] A recessed female end mating hole 205 is provided at the top center of the terminal insulating nut 204;

[0062] The female terminal 205 is used to connect to the male terminal 102 (specifically, the conductive male terminal 105 at the lower end of the male terminal 102). This allows for quick plug-and-play connection through the male terminal 102.

[0063] It should be noted that the first female terminal adapter 101 and the second female terminal adapter 107 have the same shape and structure, only their orientation and installation position are different.

[0064] In this utility model, for specific implementation, see [link to relevant documentation]. Figure 1 As shown, a vertically penetrating wiring hole 104 is provided on the male terminal 102 connected to the first female terminal adapter 101.

[0065] The lower end of the wiring hole 104 is open, and the upper end of the conductive male terminal 105 is embedded therein.

[0066] The terminals of the low-voltage power supply line (specifically the output terminal) or the communication line (specifically the communication access terminal) of the battery system under test are inserted into the wiring hole 104 and connected to the upper end of the conductive male terminal 105.

[0067] It should be noted that the male terminal 102 connected to the first female terminal adapter 101 and the male terminal 102 connected to the second female terminal adapter 107 have the same shape and structure, only the orientation and installation position are different.

[0068] It should be noted that the male terminal 102, which is connected to the first female terminal adapter 101, is connected to the terminal of the low-voltage power supply line (specifically the output terminal) or the terminal of the communication line (specifically the communication access terminal) of the battery system under test, serving as the male terminal for the low-voltage power supply output and communication output. The terminal of the low-voltage power supply line or the terminal of the communication line of the battery system under test passes through the wiring hole 104, and the outside of the hole is made of insulating material.

[0069] In practice, two bolt holes are horizontally through-holes on the side wall of the male terminal 102;

[0070] Each bolt through hole has an internal thread, which is threadedly fixed to the external thread on a bolt 103;

[0071] The inner end of the bolt 103 located above (i.e. the end facing the inside of the wiring hole 104 of the male terminal 102) is pressed against the output end of the low-voltage power supply line or the communication access end of the communication line located in the wiring hole 104.

[0072] The inner end of the bolt 103 located below is threadedly fixed to the bolt mating hole reserved on the upper circumferential side wall of the conductive male terminal 105.

[0073] In practice, the conductive male terminal 105 is made of copper;

[0074] In this utility model, specifically, the lower end (specifically, the conductive rod 201) of the first female connector 101 installed on each pair of first openings is connected to a second female connector 107 located in front via a wire 200. (See also...) Figure 5 As shown.

[0075] In practice, conductor 200 is a conductor with an external insulating layer.

[0076] In practice, on the top surface of the device cover 400, in front of the first female terminal adapter 101 installed on each pair of first openings, there is a silkscreen 109.

[0077] On the front side of the front panel of the device housing 300, directly above each second female connector 107, there is a silkscreen 109.

[0078] Furthermore, for two silkscreened characters 109 located in the same vertical direction, they contain the same content, for example, both are "12V-".

[0079] It should be noted that, for this utility model, such as Figure 5 As shown, inside the device housing 300, a pair of first female terminal adapters 101 and a second female terminal adapter 107 located in the same longitudinal direction are connected (welded or bolted) by externally insulated wires. Specifically, the first female terminal adapters 101 and the second female terminal adapter 107 with the same (i.e., identical) silkscreened longitudinally corresponding positions are welded or bolted together.

[0080] In this utility model, for specific implementation, see [link to relevant documentation]. Figure 3 , Figure 4 The top of the device housing 300 is fixedly connected to the device cover 400 by multiple fastening bolts.

[0081] In specific implementation, a housing bolt threaded hole 301 is provided at each of the four corners of the top of the device housing 300;

[0082] The device cover 400 is provided with a cover through hole 401 at a position corresponding to each housing bolt thread hole 301;

[0083] After the fastening bolt passes through the through hole 401 of the upper cover from top to bottom, it is threadedly fixed to the body bolt threaded hole 301 on the device housing 300.

[0084] Based on the novel wiring device provided by the present invention, the present invention also provides a battery charging and discharging test system, which includes a battery charging and discharging test device and the novel wiring device as described above.

[0085] The battery charge / discharge testing equipment is connected to the battery system under test via this new wiring device.

[0086] In this invention, the battery charge / discharge testing equipment is a mature and widely used existing technology. Specifically, the battery charge / discharge testing equipment can employ the NEEF300S power lithium battery pack energy feedback charge / discharge testing system manufactured by Fujian Xingyun Electronics Co., Ltd. This equipment primarily provides CAN leads, parses BMS messages of the testing system, sets the charge / discharge process (including BMS information-related judgments), performs charge / discharge function testing on the testing system, and determines whether the battery system under test, BMS communication, and electrical performance meet customer requirements.

[0087] To better understand the technical solution of this utility model, the working principle of this utility model is explained below.

[0088] In this utility model, on the one hand, for the battery system to be tested, the test low-voltage power supply and communication line (i.e., the terminal of the low-voltage power supply line or the terminal of the communication line) are inserted into the wiring hole 104 of the male terminal 102 and bolted to the conductive male terminal 105 using a bolt 103; then, according to the contents of the silkscreen 109, the conductive male terminal 105 is inserted into the first female terminal adapter 101 at the corresponding position.

[0089] On the other hand, after connecting the low-voltage power supply line (specifically the input terminal) or the communication line (specifically the communication output terminal) of the battery charging and discharging test equipment itself using the male terminal 102 (i.e., the male terminal), insert it into a second female terminal adapter 107 (i.e., the female terminal) according to the silkscreen marking.

[0090] Since the two first female terminal adapters 101 and the second female terminal adapter 107, which are located in the same longitudinal direction and have the same silkscreen, are electrically connected through the wires 200 located inside the device housing 300, the battery charge and discharge test equipment can be quickly and reliably connected to the battery system under test, so as to carry out further test operations.

[0091] See Figure 5 As shown, Figure 5 This is a wiring diagram showing the connection of the two first female connectors 101 and 107 corresponding to the 12V+ marking (silk screen printing) inside the device housing 300 via wires 200; and the wiring principle between the two first female connectors 101 and 107 corresponding to the markings (silk screen printing) for 12V-, 24V+, 24V-, CH1, CL1, CH2, CL2, etc., respectively. Figure 5 same.

[0092] It should be noted that the novel wiring device of this utility model can be used to provide low-voltage power supply to the test channel of battery charging and discharging test equipment in places such as vehicles and energy storage, and to perform quick plug-and-play switching during communication switching, and is also conducive to the rapid replacement of different lines.

[0093] Compared with the prior art, the novel wiring device provided by this utility model has the following beneficial effects:

[0094] 1. This utility model is a low-voltage power supply for the test channel of a battery charging and discharging test equipment used in vehicle-mounted, energy storage and other places, as well as a quick-plug connection device for communication conversion.

[0095] 2. This utility model transforms the power supply and communication lines of the test channel of battery charging and discharging test equipment in vehicle-mounted and energy storage locations into multi-channel power supply and communication quick-connect plug-in female ports through a plug-in adapter design.

[0096] 3. This utility model can fix the position of the low-voltage power supply and communication lines of the channel, and fix and mark the connection points of each line by silk screen printing, so as to avoid damage to the BMS system or communication lines of the battery system under test due to the tester's incorrect connection of the line. At the same time, the plug-in type can realize the rapid switching of low-voltage power supply and communication harnesses for different vehicle, energy storage and other projects, improving the efficiency of model changeover.

[0097] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel wiring device, characterized in that, include: Device housing (300), device top cover (400), female terminal conversion terminal (101) and male terminal (102); The device housing (300) is hollow and has a rectangular opening at the top; The top of the device housing (300) is covered with horizontally distributed device covers (400); The device cover (400) is provided with a first set of openings arranged horizontally; The first opening combination includes multiple pairs of first openings distributed at equal intervals in the transverse direction, and each pair of first openings includes two first openings (106) distributed symmetrically in front and behind. A first female connector (101) is fixedly provided on each first opening (106); Among them, multiple longitudinal through second openings are provided at equal intervals on the front side panel of the device housing (300); A second female connector (107) is fixedly provided on each second opening; Each second female terminal (107) is respectively provided in direct correspondence with a pair of first openings; Each of the first female terminal adapters (101) is plugged into a male terminal (102), and the male terminal (102) is connected to the output terminal of the low-voltage power supply line or the communication access terminal of the communication line of the battery system under test. Each second female terminal (107) is plugged into a male terminal (102), and is connected to the input terminal of the low-voltage power supply line or the communication output terminal of the communication line of the battery charging and discharging test equipment itself through the male terminal (102).

2. The novel wiring device as described in claim 1, characterized in that, The two first female terminal adapters (101) on each pair of first openings are respectively connected to a second female terminal adapter (107) directly in front of it.

3. The novel wiring device as described in claim 1, characterized in that, In front of the two first female terminal adapters (101) on each pair of first openings, a second female terminal adapter (107) is provided, and the longitudinal central axis of the second female terminal adapter (107) and the vertical central axis of the two first female terminal adapters (101) are located on the same longitudinal vertical plane.

4. The novel wiring device as described in claim 1, characterized in that, The first female terminal adapter (101) includes: a conductive rod (201), a fixed base insulating ring (202), and an insulating nut (204); The upper part of the conductive rod (201) is provided with a terminal insulating nut (204); The lower part of the conductive rod (201) is fitted with a fixing base insulating ring (202); There is a gap (203) for fixing the top cover between the bottom surface of the terminal insulating nut (204) and the top surface of the fixing base insulating ring (202); A gap (203) is provided for fixing the top cover to accommodate the device top cover (400); The conductive rod (201) passes vertically through the opening (106) on the device cover (400), and the bottom surface of the terminal insulating nut (204) and the top surface of the fixing base insulating ring (202) are in close contact with the upper and lower sides of the device cover (400), respectively.

5. The novel wiring device as described in claim 4, characterized in that, The lower end of the conductive rod (201) is used to connect the wire (200) located inside the housing (300) of the device; The internal thread of the fixed base insulating ring (202) is threadedly fixedly connected to the external thread of the lower circumferential outer wall of the conductive rod (201).

6. The novel wiring device as described in claim 4, characterized in that, A recessed female end mating hole (205) is provided at the top center of the terminal insulating nut (204); The female terminal is a mating hole (205) for mating with the male terminal (102).

7. The novel wiring device according to any one of claims 1 to 6, characterized in that, A vertically penetrating wiring hole (104) is provided on the male terminal (102) connected to the first female terminal adapter (101); The lower end of the wiring hole (104) is open, and the upper end of the conductive male terminal (105) is embedded therein; The output terminal of the low-voltage power supply line or the communication access terminal of the communication line of the battery system under test is inserted into the wiring hole (104) and connected to the upper end of the conductive male terminal (105).

8. The novel wiring device as described in claim 7, characterized in that, Two bolt through holes are horizontally provided on the side wall of the male terminal (102); Each bolt through hole has an internal thread, which is threadedly fixed to the external thread on a bolt (103); The inner end of the screw of the upper bolt (103) is pressed against the output end of the low-voltage power supply line or the communication access end of the communication line located in the wiring hole (104); The inner end of the bolt (103) located below is threadedly fixed to the bolt mating hole reserved on the upper circumferential side wall of the conductive male terminal (105).

9. The novel wiring device as described in any one of claims 1 to 8, characterized in that, The lower end of the first female terminal adapter (101) installed on each pair of first openings is connected to a second female terminal adapter (107) located in front via a wire (200); The conductor (200) is a conductor with an outer insulating layer; And / or, On the top surface of the device cover (400), in front of the first female terminal adapter (101) installed on each pair of first openings, there is a silkscreen (109). On the front side of the front panel of the device housing (300), directly above each second female connector (107), there is a silkscreen (109); And / or, The top of the device housing (300) is fixedly connected to the device cover (400) by a plurality of fastening bolts; At the four corners of the top of the device housing (300), there is a housing bolt thread hole (301) respectively; The device cover (400) is provided with a cover through hole (401) at a position corresponding to each housing bolt thread hole (301); After the fastening bolt passes through the upper cover through hole (401) from top to bottom, it is threadedly fixed to the body bolt threaded hole (301) on the device housing (300).

10. A battery charge / discharge testing system, characterized in that, Includes battery charge / discharge testing equipment and a novel wiring device as described in any one of claims 1 to 9; The battery charge / discharge testing equipment is connected to the battery system to be tested via the novel wiring device.

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