New energy automobile battery internal resistance measuring instrument

Abstract

The utility model discloses a new energy automobile battery internal resistance measuring instrument, and relates to the technical field of automobile battery detection, the new energy automobile battery internal resistance measuring instrument comprises a measuring instrument, a detection end and a connecting lead, the bottom of the measuring instrument is respectively provided with a lead accommodating groove, a central limiting groove, a meter pen placing groove and an alligator clip placing groove; one end of the center limiting groove and one end of the meter pen placing groove are respectively communicated with the wire storage groove, and the meter pen placing groove and the alligator clip placing groove are communicated with each other. According to the utility model, the meter pen placing groove, the alligator clip placing groove, the wire accommodating groove, the winding rod frame and the positioning clamping plate are matched for use, so that the detection end and the connecting wire can be quickly accommodated in the wire accommodating groove, the overall size of the measuring instrument is not increased too much, the measuring instrument is convenient to take and use, and the problem that the connecting wire is too long and cannot be damaged is solved. And when being placed together with other tools, the tool winding problem is easily caused, and the next use is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile battery detection, and particularly relates to an internal resistance measuring instrument for new energy vehicle batteries. Background Technique

[0002] At present, the development of new energy vehicles is becoming more and more rapid. With the increasing demand, in order to compete for the market, many new energy brands continuously improve new energy vehicles. The batteries of new energy vehicles are extremely important research objects. In the detection of new energy vehicle batteries, lithium-ion battery internal resistance measuring instruments generally use pointed test leads or alligator clips that cannot be fixed in position to connect with the electrode tabs.

[0003] At present, in the process of use, whether using pointed test leads or alligator clips that cannot be fixed in position, long connecting wires are required to connect with the measuring instrument. Therefore, after measuring the internal resistance of the new energy vehicle battery, due to the long length of the connecting wire, it is not convenient to store, and it is also easy to get entangled when placed together with other tools, affecting the next use. Content of the Utility Model

[0004] The purpose of the utility model is to provide an internal resistance measuring instrument for new energy vehicle batteries to solve the problems put forward in the above background technique.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An internal resistance measuring instrument for new energy vehicle batteries, including a measuring instrument, a detection end and a connecting wire. The bottom of the measuring instrument is respectively provided with a wire storage groove, a central limiting groove, a test lead placement groove and an alligator clip placement groove. One end of the central limiting groove and the test lead placement groove is respectively in a communicating state with the wire storage groove, and the test lead placement groove and the alligator clip placement groove are in a communicating state.

[0007] The inner wall of the test lead placement groove is rotationally connected by a shaft rod with a winding rod frame for winding and storing the connecting wire, and a limiting resistance ring is fixedly connected to the outer wall of the winding rod frame.

[0008] One end of the winding rod frame is fixedly connected with a positioning card plate, and a card plate placement groove for clamping the positioning card plate is opened at one end of the measuring instrument.

[0009] A further improvement of the technical solution of the utility model lies in that: a card plate limiting block for limiting the positioning card plate is fixedly connected to the inner wall of the card plate placement groove.

[0010] A further improvement of the technical solution of the utility model lies in that: the card plate placement groove is in a communicating state with the wire storage groove.

[0011] A further improvement of the technical solution of the present utility model lies in that: receiving groove clamping blocks are fixedly connected to the inner walls of the pen tip placement groove and the alligator clip placement groove.

[0012] A further improvement of the technical solution of the present utility model lies in that: the outer wall of the detection end is movably connected to the inner wall of the pen tip placement groove.

[0013] A further improvement of the technical solution of the present utility model lies in that: the number of the limiting resistance rings is at least two groups, and the at least two groups of limiting resistance rings are equidistantly distributed on the outer wall of the winding rod holder.

[0014] A further improvement of the technical solution of the present utility model lies in that: the winding rod holder is located inside the wire storage groove, and the winding rod holder is in a non-contact state with the inner wall of the wire storage groove.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0016] 1. The present utility model provides a measuring instrument for the internal resistance of a new energy vehicle battery. By using the cooperation of the pen tip placement groove, the alligator clip placement groove, the wire storage groove, the winding rod holder and the positioning card plate, the detection end and the connecting wire can be quickly stored in the wire storage groove, and the overall volume of the measuring instrument will not be increased too much. At the same time, it is convenient to use, avoiding the problem that due to the long length of the connecting wire, it is not easy to store, and it is easy to get entangled when placed with other tools, affecting the next use.

[0017] 2. The present utility model provides a measuring instrument for the internal resistance of a new energy vehicle battery. By using the limiting resistance rings on the winding rod holder to separate the wound coils, the connecting wire can form a regular spiral winding state. Furthermore, after the winding rod holder is reset, the connecting wire can be in a state close to being flush with the bottom plane of the measuring instrument, improving the storage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic bottom view structure diagram of the measuring instrument of the present utility model;

[0019] Figure 2 is an enlarged schematic view of the structure at A of the present utility model;

[0020] Figure 3 is a schematic structure diagram of the winding rod holder of the present utility model;

[0021] Figure 4 is a schematic structure diagram of the wire storage groove of the present utility model;

[0022] Figure 5 is a schematic structure diagram of the measuring instrument of the present utility model.

[0023] In the figure: 1. Measuring instrument; 2. Detection end; 3. Wire storage groove; 4. Central limiting groove; 5. Probe placement groove; 6. Alligator clip placement groove; 7. Winding rod holder; 8. Storage groove latch; 9. Positioning card plate; 10. Card plate limiting block; 11. Card plate placement groove; 12. Limiting resistance ring; 13. Connecting wire. Detailed implementation mode

[0024] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] The present invention will be further described in detail below in conjunction with embodiments:

[0026] Embodiment 1

[0027] As Figures 1-5 shown, the present invention provides a new energy vehicle battery internal resistance measuring instrument, including a measuring instrument 1, a detection end 2 and a connecting wire 13. The bottom of the measuring instrument 1 is respectively provided with a wire storage groove 3, a central limiting groove 4, a probe placement groove 5 and an alligator clip placement groove 6. One end of the central limiting groove 4 and the probe placement groove 5 is respectively in a state of being interconnected with the wire storage groove 3, and the probe placement groove 5 and the alligator clip placement groove 6 are in a state of being interconnected. When the detection end 2 is a pointed probe, the two detection ends 2 can be respectively placed in two groups of probe placement grooves 5, and the detection end 2 is fixed in position by the storage groove latch 8 on the inner wall. When the detection end 2 is an alligator clip, it can be placed in the corresponding alligator clip placement groove 6, and it is also fixed in position by the storage groove latch 8 in the alligator clip placement groove 6.

[0028] The inner wall of the probe placement groove 5 is rotatably connected by a shaft rod with a winding rod holder 7 for winding and storing the connecting wire 13. The outer wall of the winding rod holder 7 is fixedly connected with a limiting resistance ring 12. The wound coil is separated by the limiting resistance ring 12 on the winding rod holder 7, so that the connecting wire 13 can form a regular spiral winding state. Furthermore, after the winding rod holder 7 is reset, the connecting wire 13 can be in a state close to the bottom plane of the measuring instrument 1, improving the storage effect.

[0029] One end of the winding rod holder 7 is fixedly connected with a positioning card board 9, and a card board placement groove 11 for clamping the positioning card board 9 is opened at one end of the measuring instrument 1. Wind the connecting wire 13 from one end of the limiting resistance ring 12 to the end close to the pen tip placement groove 5. During the winding process of the connecting wire 13, use the limiting resistance ring 12 to separate the wound coil. After the winding of the connecting wire 13 is completed, press the positioning card board 9 against the inner wall of the card board placement groove 11 again. At this time, the winding rod holder 7 drives the wound coil on it to fit against the inner wall of the wire storage groove 3, completing the storage work, and will not overly increase the overall volume of the measuring instrument 1. At the same time, it is convenient to use, avoiding the problem that due to the long length of the connecting wire 13, it is not easy to store, and it is easy to get entangled when placed together with other tools, affecting the next use.

[0030] The inner wall of the card board placement groove 11 is fixedly connected with a card board limiting block 10 for limiting the positioning card board 9.

[0031] The card board placement groove 11 and the wire storage groove 3 are in a mutually connected state.

[0032] Embodiment 2

[0033] As Figures 1-5 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, storage groove clamping blocks 8 are fixedly connected to the inner walls of both the pen tip placement groove 5 and the alligator clip placement groove 6.

[0034] The outer wall of the detection end 2 is movably connected to the inner wall of the pen tip placement groove 5.

[0035] The number of the limiting resistance rings 12 is at least two groups, and at least two groups of limiting resistance rings 12 are equidistantly distributed on the outer wall of the winding rod holder 7.

[0036] The winding rod holder 7 is located inside the wire storage groove 3, and the winding rod holder 7 is in a non-contact state with the inner wall of the wire storage groove 3.

[0037] Next, specifically describe the working principle of the new energy vehicle battery internal resistance measuring instrument.

[0038] As Figures 1-5As shown, when it is necessary to store the connecting wire 13 and the detection end 2, the staff can move the positioning card plate 9 to disengage the positioning card plate 9 from the card plate placement slot 11, and then lift the positioning card plate 9 to drive the winding rod frame 7 to start rotating around the shaft rod, and then wind the connecting wire 13 from one end of the limit stop ring 12 to the end close to the test lead placement slot 5. During the winding process of the connecting wire 13, the limit stop ring 12 is used to separate the wound coil. After the winding of the connecting wire 13 is completed, the positioning card plate 9 is re-pressed on the inner wall of the card plate placement slot 11. At this time, the winding rod frame 7 drives the coil wound thereon to fit into the inner wall of the wire storage slot 3 to complete the storage work.

[0039] When the detection end 2 is a pointed test lead, the two detection ends 2 can be placed in two groups of test lead placement slots 5 respectively, and the detection end 2 can be fixed in place using the storage slot block 8 on the inner wall. When the detection end 2 is an alligator clip, it can be placed in the corresponding alligator clip placement slot 6, and it can also be fixed in place using the storage slot block 8 in the alligator clip placement slot 6.

[0040] When the detection terminal 2 needs to be removed for use, it is pulled from the test lead placement slot 5 or the alligator clip placement slot 6 to make it free from the restriction of the storage slot block 8, and then it can be taken out. Then, the positioning card plate 9 is moved and lifted up again, and the winding rod frame 7 is lifted up accordingly, and then the detection terminal 2 can be pulled to drive the connecting wire 13 to gradually fall off from the winding rod frame 7, and the disassembly work is completed.

[0041] It should be noted that, in this article, the terms "comprises", "includes" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or still includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. The above generally describes the utility model in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to it based on the utility model. Therefore, modifications or improvements that do not deviate from the spirit of the utility model are within the scope of protection of the utility model.

Claims

1. A measuring instrument for the internal resistance of a new energy vehicle battery, comprising a measuring instrument (1), a detection end (2) and a connecting wire (13), characterized in that: The bottom of the measuring instrument (1) is respectively provided with a wire storage groove (3), a central limiting groove (4), a probe placement groove (5) and an alligator clip placement groove (6). One end of the central limiting groove (4) and the probe placement groove (5) is respectively in a communicating state with the wire storage groove (3), and the probe placement groove (5) and the alligator clip placement groove (6) are in a communicating state; The inner wall of the probe placement groove (5) is rotationally connected by a shaft rod with a winding rod frame (7) for winding and storing the connecting wire (13), and a limiting resistance ring (12) is fixedly connected to the outer wall of the winding rod frame (7); One end of the winding rod frame (7) is fixedly connected with a positioning card board (9), and a card board placement groove (11) for clamping the positioning card board (9) is opened at one end of the measuring instrument (1).

2. The internal resistance measuring instrument for a new energy vehicle battery according to claim 1, wherein: A card board limiting block (10) for limiting the positioning card board (9) is fixedly connected to the inner wall of the card board placement groove (11).

3. The internal resistance measuring instrument for a new energy vehicle battery according to claim 1, characterized in that: The card board placement groove (11) is in a communicating state with the wire storage groove (3).

4. The internal resistance measuring instrument for a new energy vehicle battery according to claim 1, wherein: Receiving groove clamping blocks (8) are fixedly connected to the inner walls of the probe placement groove (5) and the alligator clip placement groove (6).

5. The internal resistance measuring instrument for a new energy vehicle battery according to claim 1, wherein: The outer wall of the detection end (2) is movably connected to the inner wall of the probe placement groove (5).

6. The internal resistance measuring instrument for a new energy vehicle battery according to claim 1, wherein: The number of the limiting resistance rings (12) is at least two groups, and at least two groups of the limiting resistance rings (12) are equidistantly distributed on the outer wall of the winding rod frame (7).

7. The internal resistance measuring instrument for a new energy vehicle battery according to claim 1, characterized in that: The winding rod frame (7) is located inside the wire storage groove (3), and the winding rod frame (7) is in a non-contact state with the inner wall of the wire storage groove (3).

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