Low-voltage wire harness installation mistake-proofing structure and battery pack installation structure

Abstract

The utility model discloses a low-voltage wire harness installation error-proofing structure and a battery pack installation structure, and relates to the technical field of power batteries. The low-voltage wire harness installation mistake-proofing structure comprises a low-voltage wire harness main body, the corrugated pipe is arranged on the outer surface of the low-voltage wire harness main body in a sleeving manner; the first preset color end face is arranged at one end of the corrugated pipe; and the second preset color end face is arranged on the side, away from the first preset color end face, of the corrugated pipe. The utility model solves the problems that a low-voltage part is generally composed of a battery system communication input port and a battery system communication output port, the internal space of a battery pack is limited, the orientation of the low-voltage communication port reserved on the end face of the battery pack is relatively fixed, and sockets at the external input end and the external output end are consistent in structure and shape and are difficult to distinguish; therefore, under the condition that a plurality of standard package low-voltage wire harnesses are connected end to end, the risks of misconnection, misconnection, missed connection and the like are easy to occur, so that trouble is brought to the whole vehicle diagnosis, the troubleshooting time is increased and the development progress of the vehicle is influenced under the condition of connection misoperation.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a low-voltage wiring harness installation error-proofing structure and a battery pack installation structure. Background Art

[0002] New energy heavy trucks usually have large power, and generally require multiple standard battery packs to be integrated. Each standard battery pack is usually divided into the following parts: high voltage part, low voltage part and emergency disconnection part. The high voltage part is divided into input and output, and generally has internationally accepted logos (+, -), and text descriptions, which are highly recognizable and easy to install. The emergency disconnection part has only one piece on each standard battery pack, and the operation of the hand piece is simple. However, the low voltage part is generally composed of the battery system communication input and output ports. Due to the limited internal space of the battery pack, the position of the low voltage communication port on the end of the battery pack is relatively fixed, and the socket structure of the external input and output ends is consistent and difficult to distinguish; therefore, when installing multiple standard low voltage harnesses end to end, it is easy to misconnect, misconnect, miss, etc., which will cause trouble to the vehicle diagnosis in the case of misoperation, increase the troubleshooting time, and affect the progress of vehicle development. In response to the above problems, no effective solution has been proposed. Utility Model Content

[0003] Purpose of the utility model: To provide a low-voltage wiring harness installation error-proof structure and a battery pack installation structure to solve the above-mentioned problems existing in the prior art.

[0004] Technical solution: A low-voltage wiring harness installation error-proofing structure, comprising: a low-voltage wiring harness main body; a corrugated tube, sleeved on the outer surface of the low-voltage wiring harness main body; a first preset color end face, arranged at one end of the corrugated tube; and a second preset color end face, arranged on the corrugated tube on a side away from the first preset color end face; wherein the preset colors of the first preset color end face and the second preset color end face are different, so that the two ends of the low-voltage wiring harness main body have a color difference.

[0005] Preferably, the color of the first preset color end surface and the color of the second preset color end surface are colors with color difference.

[0006] Preferably, the color of the first preset color end surface is blue, and the color of the second preset color end surface is white.

[0007] Preferably, corresponding markings are respectively provided on the first preset color end surface and the second preset color end surface.

[0008] Preferably, the low-voltage wiring harness body also includes: two tail clips and two plugs, one tail clip and one plug cooperate to form a first plug-in, the other tail clip and the other plug cooperate to form a second plug-in, the first plug-in and the second plug-in are respectively arranged at both ends of the low-voltage wiring harness body, the color of the first plug-in is consistent with the first preset color end face, and the color of the second plug-in is consistent with the second preset color end face.

[0009] In order to achieve the above objective, according to another aspect of the present application, a battery module is also provided.

[0010] The battery pack installation structure according to the present application includes a plurality of battery pack standard boxes and the low-voltage wiring harness installation error prevention structure as described above;

[0011] It also includes: a first low-voltage wiring harness and several second low-voltage wiring harnesses, the first plug-in of the first low-voltage wiring harness is connected to the main interface of the high-voltage box, the second plug-in of the first low-voltage wiring harness is connected to the communication input end of the battery pack standard box, and the first plug-in and the second plug-in of the second low-voltage wiring harness are respectively connected to the communication input end and the communication output end of the two battery pack standard boxes.

[0012] Preferably, the two ends of the first low-voltage wiring harness are respectively the first high-voltage box main control interface and the first battery pack standard box communication input interface.

[0013] Preferably, the two ends of the second low-voltage wiring harness are respectively the communication output interface of the first battery pack standard box and the communication input interface of the second battery pack standard box, the communication output interface of the first battery pack standard box is connected to the communication input interface of the first battery pack standard box, and the communication input interface of the second battery pack standard box is connected to the communication output interface of the first battery pack standard box.

[0014] Preferably, several of the battery pack standard boxes are connected in series via several of the second low-voltage wiring harnesses.

[0015] Preferably, the number of the battery pack standard boxes is three, the first battery pack standard box is connected to the high voltage box and the first battery pack standard box respectively through the first low voltage wiring harness, the first battery pack standard box is connected to the second battery pack standard box through the second low voltage wiring harness, and the second battery pack standard box is connected to the third battery pack standard box through the second low voltage wiring harness.

[0016] Beneficial effect: In the embodiment of the present application, a method of presetting different colors is adopted, and the preset colors of the first preset color end face and the second preset color end face are different, so that the two ends of the low-voltage wiring harness body have color difference, which achieves the purpose of easy distinction and identification, thereby achieving the technical effect of improving installation accuracy and improving installation efficiency, and further solves the problem that the low-voltage part is generally composed of the battery system communication input and output ports. Due to the limited internal space of the battery pack, the orientation of the low-voltage communication port on the end face of the battery pack is relatively fixed, and the socket structure of the external input and output ends is consistent and difficult to distinguish; therefore, when installing multiple standard low-voltage wiring harnesses end to end, it is easy to connect, misconnect, miss, etc., which will cause trouble to the vehicle diagnosis in the case of incorrect connection operation, increase the troubleshooting time, and affect the technical problem of vehicle development progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the battery pack installation structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the first low-voltage wiring harness structure of the utility model for the error-proof installation structure of low-voltage wiring harnesses for multiple battery packs;

[0019] Figure 3 It is a schematic diagram of the second low-voltage wiring harness structure of the utility model for the error-proof installation structure of low-voltage wiring harnesses for multiple battery packs;

[0020] Figure 4 It is a schematic diagram of the plug structure of the utility model for the error-proof installation structure of the low-voltage wiring harness of multiple battery packs;

[0021] Figure 5 It is a schematic diagram of the main structure of a low-voltage wiring harness of the utility model for the error-proof installation structure of low-voltage wiring harnesses for multiple battery packs.

[0022] The figures are marked as follows: 10, low-voltage wiring harness main body; 20, corrugated tube; 30, first preset color end face, 40, second preset color end face; 50, tail clip; 60, plug; 70, high-voltage box; 80, battery pack standard box; 90, first low-voltage wiring harness; 100, second low-voltage wiring harness. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" 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 an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figure 1-5 As shown, the present application relates to a low-voltage wiring harness installation error prevention structure and a battery pack installation structure. The low-voltage wiring harness installation error prevention structure comprises: a low-voltage wiring harness body 10; the low-voltage wiring harness body 10 refers to the main part of a cable bundle or wire bundle used to transmit a relatively low voltage power signal or power supply.

[0028] The corrugated tube 20 is sleeved on the outer surface of the low-voltage wire harness body 10 ; it can achieve a good protection effect, and at the same time has the effect of withstanding tension, compression and twisting to maintain a high strength and sealing performance.

[0029] The first preset color end face 30 is provided at one end of the bellows 20 ; it can achieve the effect of presetting the color of one end of the bellows 20 , thereby improving the distinction and recognition.

[0030] The second preset color end face 40 is arranged on the corrugated tube 20 on the side away from the first preset color end face 30; by presetting the color of the other end of the corrugated tube 20, an effect of presenting a color different from that of the other end can be achieved.

[0031] The first preset color end face 30 and the second preset color end face 40 have different preset colors, so that there is a color difference at both ends of the low-voltage wire harness body 10. By presetting different colors at both ends of the corrugated tube 20 and having a color difference between the two colors, it is possible to achieve the effect of facilitating identification of the function of the low-voltage wire harness end, thereby improving the accuracy of installation.

[0032] The present application can quickly identify the plug 60 at the wiring harness end and the socket at the installation end, and match the corresponding wiring harness and connector.

[0033] This utility model patent can efficiently and quickly identify the plug 60 and the socket in a short time, and accurately insert the corresponding socket; in addition, there is a color difference at both ends of the low-voltage wire harness, which is convenient for visual process management; at the same time, during re-inspection, the number of plugging and unplugging can be reduced, and the life of the connector can be increased. Finally, this set of design methods is universal and can be standardized to form inherent processes and process standards, so as to improve assembly efficiency for production and reduce the probability of rework.

[0034] From the above description, it can be seen that the present application achieves the following technical effects:

[0035] In the embodiment of the present application, different colors are preset, and the preset colors of the first preset color end face 30 and the second preset color end face 40 are different, so that the two ends of the low-voltage wiring harness main body 10 have color difference, which achieves the purpose of easy distinction and identification, thereby achieving the technical effect of improving installation accuracy and improving installation efficiency, and further solves the problem that the low-voltage part is generally composed of the battery system communication input and output ports. Due to the limited internal space of the battery pack, the orientation of the low-voltage communication port on the end face of the battery pack is relatively fixed, and the socket structure of the external input and output ends is consistent and difficult to distinguish; therefore, when multiple standard low-voltage wiring harnesses are installed end to end, there is a risk of misconnection, wrong connection, missing connection, etc., which will cause trouble to the vehicle diagnosis in the case of incorrect connection operation, increase the troubleshooting time, and affect the progress of vehicle development.

[0036] Further, the color of the first preset color end face 30 and the color of the second preset color end face 40 are colors with color difference. It can be understood that by using colors with distinct color difference at both ends, the effect of ensuring that the two ends are easy to distinguish can be ensured, thereby improving installation efficiency.

[0037] Further, the color of the first preset color end surface 30 is blue, and the color of the second preset color end surface 40 is white. It can be understood that the effect of easy color distinction can be achieved.

[0038] Furthermore, corresponding marks are respectively provided on the first preset color end surface 30 and the second preset color end surface 40. It can be understood that the effect of facilitating marking can be achieved, thereby facilitating checking and confirmation.

[0039] Furthermore, the low-voltage harness body 10 further includes: two tail clips 50 and two plugs 60, one tail clip 50 and one plug 60 cooperate to form a first plug-in, the other tail clip 50 and the other plug 60 cooperate to form a second plug-in, the first plug-in and the second plug-in are respectively arranged at both ends of the low-voltage harness body 10, the color of the first plug-in is consistent with the first preset color end face 30, and the color of the second plug-in is consistent with the second preset color end face 40. It can be understood that the effect of facilitating the connection between the battery pack standard boxes 80 and between the battery pack standard boxes 80 and the high-voltage box 70 can be achieved.

[0040] The present application also relates to a battery pack installation structure, including a plurality of battery pack standard boxes 80 and the low-voltage wiring harness installation error prevention structure as described above;

[0041] It also includes: a first low-voltage harness 90 and several second low-voltage harnesses 100, wherein the first plug-in of the first low-voltage harness 90 is connected to the main interface of the high-voltage box 70, the second plug-in of the first low-voltage harness 90 is connected to the communication input end of the battery pack standard box 80, and the first plug-in and the second plug-in of the second low-voltage harness 100 are respectively connected to the communication input end and the communication output end of the two battery pack standard boxes 80. A good electrical connection effect between the battery pack standard boxes 80 can be achieved.

[0042] Furthermore, two ends of the first low-voltage wiring harness 90 are respectively a main control interface of the first high-voltage box 70 and a communication input interface of the first battery pack standard box 80 .

[0043] Furthermore, the two ends of the second low-voltage wiring harness 100 are respectively the communication output interface of the first battery pack standard box 80 and the communication input interface of the second battery pack standard box 80. The communication output interface of the first battery pack standard box 80 is connected to the communication input interface of the first battery pack standard box 80, and the communication input interface of the second battery pack standard box 80 is connected to the communication output interface of the first battery pack standard box 80.

[0044] Furthermore, a plurality of the battery pack standard boxes 80 are connected in series via a plurality of the second low-voltage wiring harnesses 100 .

[0045] Furthermore, the number of the battery pack standard boxes 80 is three, the first battery pack standard box 80 is connected to the high voltage box 70 and the first battery pack standard box 80 respectively through the first low voltage wiring harness 90, the first battery pack standard box 80 is connected to the second battery pack standard box 80 through the second low voltage wiring harness 100, and the second battery pack standard box 80 is connected to the third battery pack standard box 80 through the second low voltage wiring harness 100.

[0046] The following is explained by specific examples:

[0047] like Figure 1 As shown, specifically: taking the 12 battery pack standard boxes 80 in the figure as an example, the connection method of the low-voltage wiring harness is: from the output of the main control interface of the high-voltage box 70, it is connected to the communication input of the No. 1 battery standard box in sequence, the output of the No. 1 battery standard box is connected to the input of the No. 2 battery pack standard box 80, and so on, the series connection method, the last one is the communication output of the No. 12 battery pack standard box 80.

[0048] Specific installation method of this case:

[0049] like Figure 2 As shown: 1# low-voltage wiring harness is shown in the figure, the external protective bellows 20 is composed of two colors, the left end bellows 20 is blue, the tail clip 50 is blue, and the label is marked as the main control interface of the high-voltage box 70; the right end bellows 20 is white, the right end tail clip 50 is white, and the label is marked as the communication input of the 1# battery box;

[0050] like Figure 3 As shown: 2# low-voltage wiring harness is shown in the figure, the external protective bellows 20 is composed of two colors, the left end bellows 20 is blue, the tail clip 50 is blue, and the label is marked as 1# battery pack communication output; the right end bellows 20 is white, the right end tail clip 50 is white, and the label is marked as 2# battery box communication input;

[0051] like Figure 4 As shown, it is a schematic diagram of the structure of a standard low-voltage plug-in; for example, the left side is a standard low-voltage plug-in: the outer surface of the left side (input end) is white (socket & plug 60); the right side (output end) is blue (plug 60 & socket);

[0052] As stated above:

[0053] Low-voltage wiring harness connection rules: The blue socket output from the vehicle-side high-voltage box 70 interface corresponds to the following Figure 2 As shown (1# low voltage harness), the blue end of the plug 60 (as Figure 4 As shown: blue), tail clip 50, bellows 20, the other end is connected to the communication input of battery box 1# (such as Figure 4 As shown: white) socket; at the same time, the output terminal of the No. 1 battery pack standard box 80 is connected as follows Figure 3As shown in the 2# low-voltage wiring harness, the upper blue socket of the No. 1 battery standard box is connected to the corresponding plug 60 of the communication output end of the 1# battery box, and the other end of the white plug 60 is connected to the socket of the No. 2 battery standard box, and so on. The output end of each battery pack standard box 80 corresponds to the input end of another battery standard box.

[0054] The above method can be used to quickly, conveniently and effectively identify the wiring harness and connectors, is easy to install, and has high practical operability.

[0055] The utility model also has the following beneficial effects:

[0056] 1. This utility model has strong practical versatility and is applicable to the new energy industry (power, energy storage) scenario. When multiple battery packs are connected to collect data through low-voltage wiring harnesses, this technology can effectively avoid the occurrence of misconnection, missing connection, and wrong connection of low-voltage wiring harnesses. This method has a simple principle, clear structure, and is easy to promote and use.

[0057] 2. The utility model can solve the following problems: 2.1 Since there is no identifiable mark on the existing wiring harness, the black socket output from the high-voltage box interface at the vehicle end, the communication output socket of the 1# battery box, the input of the 1 battery pack standard box connected to the output of the 2 battery pack standard box, and so on... the entire set of low-voltage wiring harnesses will be connected incorrectly;

[0058] The whole vehicle may have the following faults: a. The battery addressing and physical address do not correspond; address allocation conflicts, the battery reports a fault and cannot be supplied with high voltage; b. The address allocation is wrong, the message number is inconsistent with the physical number of the battery pack. If a battery pack reports a fault later, the faulty battery pack cannot be accurately located.

[0059] 2.2 Since low-voltage wiring harnesses and connectors are not easily identifiable and are all black, they cannot be matched one to one, and there is a risk of missed or wrong connections.

[0060] 3. During the operation, operators may make mistakes from time to time due to misconnection or forgetfulness. The problems caused by this are relatively common and the proportion is also large. The use of the above error prevention design can standardize the process standards, optimize the manufacturing process, and improve the company system.

[0061] 4. The use of this application can improve the quality of the product, reduce the number of plugging and unplugging connectors, effectively identify the color and identification of the wiring harness through visual inspection, and take preventive measures from a preventive perspective during installation.

[0062] 5. By using this application, the number of rework will be greatly reduced, improving productivity and reducing resource waste.

[0063] 6. The error-proofing design process improves installation accuracy, speeds up assembly, effectively improves productivity and ensures product quality.

[0064] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. Low-voltage wiring harness installation error-proofing structure, It is characterized in that include: Low voltage harness body; A corrugated tube, sleeved on the outer surface of the low-voltage wire harness body; A first preset color end surface, disposed at one end of the corrugated tube; and A second preset color end surface, arranged on the corrugated tube at a side away from the first preset color end surface; The preset colors of the first preset color end face and the second preset color end face are different, so that there is a color difference at both ends of the low-voltage wire harness body.

2. The low-voltage wiring harness installation error-proofing structure according to claim 1, It is characterized in that The color of the first preset color end surface and the color of the second preset color end surface are colors with color difference.

3. The low-voltage wiring harness installation error-proofing structure according to claim 1, It is characterized in that The color of the first preset color end surface is blue, and the color of the second preset color end surface is white.

4. The low-voltage wiring harness installation error-proofing structure according to claim 1, It is characterized in that The first preset color end surface and the second preset color end surface are respectively provided with corresponding marks.

5. The low-voltage wiring harness installation error-proofing structure according to claim 1, It is characterized in that The low-voltage wiring harness body also includes: two tail clips and two plugs, one tail clip and one plug cooperate to form a first plug-in, the other tail clip and the other plug cooperate to form a second plug-in, the first plug-in and the second plug-in are respectively arranged at both ends of the low-voltage wiring harness body, the color of the first plug-in is consistent with the first preset color end face, and the color of the second plug-in is consistent with the second preset color end face.

6. Battery pack installation structure, It is characterized in that It includes a plurality of battery pack standard boxes and a low-voltage wiring harness installation error-proofing structure as described in any one of claims 1 to 5; It also includes: a first low-voltage wiring harness and several second low-voltage wiring harnesses, the first plug-in of the first low-voltage wiring harness is connected to the main interface of the high-voltage box, the second plug-in of the first low-voltage wiring harness is connected to the communication input end of the battery pack standard box, and the first plug-in and the second plug-in of the second low-voltage wiring harness are respectively connected to the communication input end and the communication output end of the two battery pack standard boxes.

7. The battery pack mounting structure according to claim 6, It is characterized in that The two ends of the first low-voltage wiring harness are respectively the first high-voltage box main control interface and the first battery pack standard box communication input interface.

8. The battery pack mounting structure according to claim 7, It is characterized in that The two ends of the second low-voltage wiring harness are respectively the first battery pack standard box communication output interface and the second battery pack standard box communication input interface. The first battery pack standard box communication output interface is connected to the first battery pack standard box communication input interface, and the second battery pack standard box communication input interface is connected to the first battery pack standard box communication output interface.

9. The battery pack mounting structure according to claim 6, It is characterized in that A plurality of the battery pack standard boxes are connected in series via a plurality of the second low-voltage wiring harnesses.

10. The battery pack mounting structure according to claim 6, It is characterized in that The number of the battery pack standard boxes is three, the first battery pack standard box is connected to the high voltage box and the first battery pack standard box respectively through the first low voltage wiring harness, the first battery pack standard box is connected to the second battery pack standard box through the second low voltage wiring harness, and the second battery pack standard box is connected to the third battery pack standard box through the second low voltage wiring harness.

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