Voltage inspection instrument and voltage inspection system

Abstract

The utility model discloses a voltage inspection instrument and a voltage inspection system, and relates to the technical field of battery detection, the voltage inspection instrument comprises a housing and an elastic arm, one side of the housing corresponding to a clamping groove is recessed inwards to form a movable groove; the elastic arm is located in the movable groove, the connecting end of the elastic arm is connected with the shell, the free end of the elastic arm forms a buckle matched with the clamping groove in a clamped mode, the elastic arm has an initial state and a compressed state, in the initial state, the elastic arm and the groove bottom of the movable groove are arranged in a spaced mode, and the buckle is located outside the movable groove; the elastic arm is bent towards the groove bottom of the movable groove, and the buckle is located in the movable groove. According to the utility model, the buckle is abutted against the clamping groove through the elastic restoring force of the elastic arm, so that the voltage itinerant detector can be fixed with the battery pole piece without a rivet and a pressing clamp, and can be locked and unlocked with the battery pole piece by pressing the elastic arm, thereby simplifying the installation process of the voltage itinerant detector and improving the assembly efficiency of the voltage itinerant detector.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a voltage patrol meter and a voltage patrol system. Background Art

[0002] A fuel cell stack is composed of multiple cells stacked in sequence. Changes in the operating environment and improper operation can cause changes in the voltage of each cell. Therefore, it is necessary to monitor the voltage of each cell and transmit the voltage signal to the fuel cell controller to determine the battery's operating status and determine the appropriate response strategy. Currently, a voltage inspection device is used to establish a connection with the fuel cell stack to collect the voltage of each cell in the stack.

[0003] The voltage inspection device in the prior art is usually connected to the battery electrode through structures such as rivets or clips, and a fuel cell stack requires multiple voltage inspection devices for detection. During the installation process, the installation process of the voltage inspection device will be cumbersome and the assembly efficiency will be low. Utility Model Content

[0004] The main purpose of the utility model is to provide a voltage patrol meter and a voltage patrol system, aiming to solve the problems of complicated installation process and low assembly efficiency of voltage patrol devices in the prior art.

[0005] To achieve the above-mentioned purpose, the voltage patrol meter proposed in the present invention is used to connect with a battery electrode. The battery electrode is provided with a protruding plug-in portion and a recessed slot. The voltage patrol meter includes:

[0006] A housing, wherein one side of the housing corresponding to the card slot is recessed inward to form a movable slot;

[0007] An elastic arm, wherein the elastic arm is located in the movable groove, the connecting end of the elastic arm is connected to the shell, and the free end of the elastic arm is formed with a buckle for engaging with the card slot. The elastic arm includes an initial state and a compressed state. When in the initial state, the elastic arm is spaced apart from the bottom of the movable groove and the buckle is located outside the movable groove. When in the compressed state, the elastic arm is bent toward the bottom of the movable groove and the buckle is located in the movable groove. The buckle is used to clamp with the card slot when the elastic arm is in the initial state to fix the corresponding battery electrode.

[0008] In one embodiment, the elastic arm includes an arc-shaped portion and an extension portion connected to each other, the arc-shaped portion is formed with the connecting end at one end away from the extension portion, the cross-section of the arc-shaped portion is arc-shaped, and the extension portion is formed with the free end at one end away from the arc-shaped portion.

[0009] In one embodiment, a reinforcing rib is provided at a connection between the arc-shaped portion and the extension portion, and an extension direction of the reinforcing rib is perpendicular to an extension direction of the arc-shaped portion.

[0010] In one embodiment, the arc portion and the extension portion are integrally formed.

[0011] In one embodiment, an inner wall of one side of the slot forms an abutting surface, and the buckle forms an adapting surface that adapts to and abuts against the abutting surface.

[0012] In one embodiment, a distance between an outer wall of the buckle on a side facing away from the matching surface and the matching surface is gradually reduced in a direction away from the free end.

[0013] In one embodiment, two opposite ends of a side wall of the shell facing the slot are respectively protruded to form limiting walls, and the side wall of the shell and the two limiting walls form the movable slot.

[0014] In one embodiment, a gap is formed between the elastic arm and the two limiting walls.

[0015] In one embodiment, a plug-in portion is protruded from the battery electrode, and a receiving groove for inserting the plug-in portion is formed on the shell. The card slot is located on the side of the card portion facing the plug-in portion, and the elastic arm is located between the plug-in portion and the card portion.

[0016] The present invention also provides a voltage inspection system, which includes a plurality of the above-mentioned voltage inspection instruments, and an array of the plurality of voltage inspection instruments is arranged on the battery electrode.

[0017] The technical solution of the present invention is to set a movable groove on the shell of the voltage patrol meter and set an elastic arm in the movable groove. When in use, the elastic arm is pressed to bend it toward the bottom of the movable groove and enter a compressed state, so that the elastic arm and the buckle are both located in the movable groove. At this time, the voltage patrol meter is connected to the electrode, and the buckle is aligned with the slot. Then, the elastic arm is released, so that the elastic arm is restored from the compressed state to the initial state through its own elastic restoring force, and the buckle extends out of the movable groove and clamps with the slot, thereby achieving limiting and fixing between the voltage patrol meter and the battery electrode. The present application extends the buckle into the slot and abuts against the slot through the elastic restoring force of the elastic arm itself, so that the voltage patrol meter can be fixed to the battery electrode without rivets and clips. It can be locked and unlocked with the battery electrode only by pressing the elastic arm, thereby simplifying the installation process of the voltage patrol meter and improving its assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the assembly of the voltage patrol meter and battery electrode provided by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the voltage patrol meter provided by the utility model;

[0021] Figure 3 A schematic diagram of the structure of the battery electrode provided by the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the voltage patrol meter provided by the utility model when viewed from above.

[0023] Description of Figure Numbers:

[0024] 100. Voltage patrol meter; 1. Housing; 11. Movable slot; 12. Limiting wall; 13. Gap; 14. Accommodating slot; 2. Elastic arm; 21. Free end; 22. Connecting end; 23. Buckle; 231. Matching surface; 24. Arc-shaped portion; 25. Extension portion; 26. Reinforcing rib; 3. Battery electrode; 31. Snap-fit ​​portion; 32. Slot; 33. Connecting portion.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The voltage inspection device in the prior art is usually connected to the battery electrode through structures such as rivets or clips, and a fuel cell stack requires multiple voltage inspection devices for detection. During the installation process, the installation process of the voltage inspection device will be cumbersome and the assembly efficiency will be low.

[0030] In order to solve the above problems, the present invention provides a voltage patrol meter 100 .

[0031] Please combine Figures 1 to 4 The voltage patrol meter 100 of this embodiment is used to connect with the battery electrode 3. The battery electrode 3 is protruded with a plug-in portion 33 and recessed with a card slot 32. The voltage patrol meter 100 includes a shell 1 and an elastic arm 2. The side of the shell 1 corresponding to the card slot 32 is recessed inward to form a movable slot 11; the elastic arm 2 is located in the movable slot 11, and the connecting end 22 of the elastic arm 2 is connected to the shell 1. The free end 21 of the elastic arm 2 is formed with a buckle 23 for engaging with the card slot 32. The elastic arm 2 includes an initial state and a compressed state. In the initial state, the elastic arm 2 is spaced apart from the bottom of the movable slot 11 and the buckle 23 is located outside the movable slot 11. In the compressed state, the elastic arm 2 is bent toward the bottom of the movable slot 11 and the buckle 23 is located in the movable slot 11. The buckle 23 is used to clamp with the card slot 32 when the elastic arm 2 is in the initial state to fix the corresponding battery electrode 3.

[0032] The technical solution of the present invention is to provide a movable groove 11 on the shell 1 of the voltage patrol meter 100 and provide an elastic arm 2 in the movable groove 11. When in use, the elastic arm 2 is pressed to bend it toward the bottom of the movable groove 11 and enter a compressed state, so that the elastic arm 2 and the buckle 23 are both located in the movable groove 11. At this time, the voltage patrol meter 100 is connected to the electrode, and the buckle 23 is aligned with the slot 32. Then, the elastic arm 2 is released, so that the elastic arm 2 is restored to the initial state from the compressed state through its own elastic restoring force, and the buckle 23 extends out of the movable groove 11 and is clamped with the slot 32, thereby achieving limitation and fixation between the voltage patrol meter 100 and the battery electrode 3. The present application uses the elastic restoring force of the elastic arm 2 itself to extend the buckle 23 into the card slot 32 and abut against the card slot 32, so that the voltage patrol meter 100 can be fixed to the battery pole piece 3 without rivets and clips. It can be locked and unlocked with the battery pole piece 3 only by pressing the elastic arm 2, thereby simplifying the installation process of the voltage patrol meter 100 and improving its assembly efficiency.

[0033] In one embodiment, the elastic arm 2 includes an interconnected arcuate portion 24 and an extension portion 25. The end of the arcuate portion 24 remote from the extension portion 25 forms a connecting end 22. The arcuate portion 24 has an arc-shaped cross-section, and the end of the extension 25 remote from the arcuate portion 24 forms a free end 21. It will be appreciated that the arcuate portion 24 can provide more uniform stress distribution, avoid stress concentration at the connection between the elastic arm 2 and the housing 1, reduce material fatigue and fracture risks, and extend the service life of the structure. It can also better withstand multi-directional loads, improve the stability and strength of the connection, and thus make the entire elastic arm 2 more durable.

[0034] Furthermore, a reinforcing rib 26 is provided at the connection between the arc portion 24 and the extension portion 25, and the extension direction of the reinforcing rib 26 is arranged perpendicular to the extension direction of the arc portion 24. The reinforcing rib 26 can increase the cross-sectional area of ​​the connection between the arc portion 24 and the extension portion 25, improving its load-bearing capacity, enabling it to better withstand stress from different directions and prevent fracture or deformation. At the same time, under cyclic loads or vibration loads, the structure is prone to fatigue damage. The reinforcing rib 26 can improve the structure's fatigue resistance and extend its service life, thereby extending the service life of the elastic arm 2.

[0035] In one embodiment, the arcuate portion 24 and the extension portion 25 are integrally formed. This integral molding eliminates the weaknesses of traditional assembly connections, such as stress concentration problems caused by clamping or welding, and avoids potential breakage or loosening, thereby increasing overall strength and reducing failures caused by aging, wear, fatigue, and other problems at the connection, thereby improving the reliability and service life of the elastic arm 2.

[0036] In one embodiment, an inner wall of one side of the slot 32 forms an abutment surface, and the buckle 23 is formed with an adapting surface 231 that adapts and abuts against the abutment surface. The adapting surface 231 and the abutment surface are adapted and abutted together, making the fit between the adapting surface 231 and the abutment surface more precise, providing a strong mechanical connection, and making the connection between the buckle 23 and the slot 32 more stable, avoiding loosening and slipping, and improving the reliability of the connection.

[0037] In one embodiment, the distance between the outer wall of the buckle 23 on the side facing away from the fitting surface 231 and the fitting surface 231 is gradually reduced in the direction away from the free end 21. The distance between the outer wall of the buckle 23 on the side facing away from the fitting surface 231 and the fitting surface 231 is the thickness of the buckle 23. The buckle 23 is thicker near the free end 21 because stress is concentrated at the connection between the buckle 23 and the elastic arm 2, requiring thicker material to improve strength. The direction away from the free end 21 has lower strength requirements, so it is designed to be thinner. This not only reduces material consumption and costs, but also helps the buckle 23 more easily fit into the slot 32, improving assembly portability and reducing assembly difficulty.

[0038] In one embodiment, the housing 1 has two sidewalls facing the latching slot 32, with the two opposing ends of the sidewall protruding to form limiting walls 12. The sidewall of the housing 1 and the two limiting walls 12 enclose the movable slot 11. The limiting walls 12 and the sidewall of the housing 1 enclose the movable slot 11, leaving the top and bottom of the movable slot 11 unobstructed. This saves material and reduces costs, while also simplifying the process of forming the movable slot 11 and improving production efficiency.

[0039] Furthermore, a gap 13 is formed between the elastic arm 2 and the two limiting walls 12. The presence of the gap 13 provides sufficient space for the elastic arm 2, allowing it to bend, stretch, or compress freely when subjected to external force without being directly restricted by the limiting walls 12, thereby giving full play to the elastic properties of the elastic arm 2. It also prevents the elastic arm 2 from directly contacting the limiting walls 12 during movement, avoiding friction and wear, and thus extending the service life of the elastic arm 2 and the limiting walls 12.

[0040] In one embodiment, a plug-in portion 33 is protruding from the battery electrode 3, and a receiving slot for inserting the plug-in portion 33 is formed on the housing 1. The slot 32 is located on the side of the clamping portion 31 facing the plug-in portion 33, and the elastic arm 2 is located between the plug-in portion 33 and the clamping portion 31. The clamping portion 33 extends vertically. After the receiving slot and the plug-in portion 33 are plugged into each other, the voltage patrol meter 100 is horizontally limited by the receiving slot 14. The slot 32 is located on the side of the clamping portion 31 facing the plug-in portion 33. When the slot 32 and the buckle 23 are tightly abutted, the slot 32 applies a vertical force to the buckle 23, thereby vertically limiting the voltage patrol meter 100. This prevents the voltage patrol meter 100 from moving horizontally or vertically, thereby improving its stability.

[0041] The present invention also provides a voltage inspection system, which includes a plurality of the aforementioned voltage inspection instruments 100, which are arranged in an array on the battery electrode 3. The specific structure of the voltage inspection instruments 100 is similar to that of the above-mentioned embodiments. Since the present voltage inspection system adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be detailed here.

[0042] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A voltage inspection instrument, characterized in that: Used to connect with the battery pole piece, the battery pole piece protrudes to form a clamping portion, and the clamping portion is recessed to form a clamping slot. The voltage patrol meter includes: A housing, wherein one side of the housing corresponding to the card slot is recessed inward to form a movable slot; An elastic arm, wherein the elastic arm is located in the movable groove, the connecting end of the elastic arm is connected to the shell, and the free end of the elastic arm is formed with a buckle for engaging with the card slot. The elastic arm includes an initial state and a compressed state. When in the initial state, the elastic arm is spaced apart from the bottom of the movable groove and the buckle is located outside the movable groove. When in the compressed state, the elastic arm is bent toward the bottom of the movable groove and the buckle is located in the movable groove. The buckle is used to clamp with the card slot when the elastic arm is in the initial state to fix the corresponding battery electrode.

2. The voltage inspection instrument according to claim 1, wherein: The elastic arm includes an arc portion and an extension portion connected to each other, the arc portion away from the extension portion forms the connecting end, the cross-section of the arc portion is arc-shaped, and the extension portion away from the arc portion forms the free end.

3. The voltage patrol meter according to claim 2, characterized in that: A reinforcing rib is provided at a connection between the arc-shaped portion and the extension portion, and an extension direction of the reinforcing rib is perpendicular to the extension direction of the arc-shaped portion.

4. The voltage inspection instrument according to claim 3, wherein: The arc portion and the extension portion are integrally formed.

5. The voltage patrol instrument according to claim 1, wherein: An inner wall of one side of the slot forms an abutting surface, and the buckle is formed with an adapting surface that adapts to and abuts against the abutting surface.

6. The voltage patrol meter according to claim 5, characterized in that: The distance between the outer wall of the buckle on the side facing away from the adapting surface and the adapting surface is gradually reduced in the direction away from the free end.

7. The voltage patrol meter according to any one of claims 1 to 6, characterized in that: Two opposite ends of a side wall of the shell facing the slot are respectively raised to form limiting walls, and the side wall of the shell and the two limiting walls form the movable slot.

8. The voltage patrol meter according to claim 7, characterized in that: A gap is formed between the elastic arm and the two limiting walls.

9. The voltage patrol meter according to any one of claims 1 to 6, characterized in that: A plug-in portion is protruded from the battery electrode, and a receiving groove for inserting the plug-in portion is formed on the shell. The card slot is located on the side of the card portion facing the plug-in portion, and the elastic arm is located between the plug-in portion and the card portion.

10. A voltage inspection system, characterized in that: The voltage patrol system comprises a plurality of voltage patrol meters according to any one of claims 1 to 9, and an array of the plurality of voltage patrol meters is arranged on the battery pole piece.

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