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 battery detection technology field, the voltage inspection instrument comprises a housing and a clamping assembly, the bottom of the housing is provided with an accommodation groove used for the insertion of a clamping part, the parts of the two opposite sides of the housing corresponding to the two clamping grooves are respectively recessed to form two clamping grooves, and the two clamping grooves are arranged in the accommodation groove. The clamping grooves are matched with the corresponding clamping grooves in shape, and when the clamping parts are inserted into the containing grooves, the clamping grooves communicate with the containing grooves and coincide with the clamping grooves. The clamping assembly comprises two lock pins corresponding to the clamping grooves and the clamping grooves, and the lock pins are used for penetrating through the corresponding clamping grooves, being inserted into the corresponding clamping grooves and abutting against the groove walls of the clamping grooves. According to the voltage itinerant detector, through the matching relation of the lock pin, the clamping groove and the clamping groove, the voltage itinerant detector can be fixed to the battery pole piece without a rivet and a pressing clamp, locking and unlocking of the voltage itinerant detector and the battery pole piece can be achieved by pulling and inserting the lock pin, and therefore the installation process of the voltage itinerant detector is simplified, and the assembling efficiency of the voltage itinerant detector is improved.

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 convex to form a clamping portion, and the opposite sides of the clamping portion are respectively recessed to form a clamping groove. The voltage patrol meter includes:

[0006] A housing, wherein a bottom portion of the housing is provided with a receiving groove for inserting the clamping portion, and portions of opposite sides of the housing corresponding to the two clamping grooves are respectively recessed to form two clamping grooves, each clamping groove being adapted to the shape of the corresponding clamping groove. When the clamping portion is inserted into the receiving groove, the clamping groove communicates with the receiving groove and overlaps with the clamping groove;

[0007] The clamping assembly includes two locking pins corresponding to the clamping slot and the clamping slot, each locking pin is used to pass through the corresponding clamping slot and insert into the corresponding clamping slot, and press against the slot wall of the clamping slot to clamp the shell to the battery electrode.

[0008] In one embodiment, the clamping portion includes a top plate, a bottom plate and a connecting plate, the connecting plate is connected between the top plate and the bottom plate, and the width of the connecting plate is smaller than the width of the top plate and the bottom plate, so that the top plate, the bottom plate and the connecting plate form the clamping groove, and the locking pin is used to press against the top plate.

[0009] In one embodiment, a socket for inserting the top plate is provided on the locking pin at a position corresponding to the top plate, and the socket is used to press against the top plate.

[0010] In one embodiment, there are multiple accommodating slots, and the multiple accommodating slots are arranged at intervals on the shell and are all connected to the snap-in slot. The locking pin is provided with multiple insertion holes, and the number of the insertion holes is consistent with the number of the accommodating slots and is arranged one-to-one.

[0011] In one embodiment, baffles are formed on opposite sides of the locking pin, and a buckle is formed on the side of each baffle facing away from the other baffle. The shell has a card hole formed at the position corresponding to each card hole, and the card hole is used to engage with the card hole to fix the locking pin to the shell.

[0012] In one embodiment, a guide slope is formed on each of the buckles, and the distance between two guide slopes is gradually reduced in a direction toward the engaging groove.

[0013] In one embodiment, a side of the buckle facing away from the guide slope is recessed toward the guide slope to form a limiting portion, and the limiting portion is used to engage with the side wall of the locking hole to limit the locking pin at the locking hole.

[0014] In one embodiment, the locking pin is further provided with a reinforcing rib, and the reinforcing rib is located between the two baffles and extends toward the clamping groove.

[0015] In one embodiment, a blocking member is provided at a position of the housing corresponding to the engaging slot, the shape of the blocking member matches the shape of the locking pin, and the blocking member abuts against the bottom of the locking pin when the locking pin is inserted into the engaging slot.

[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 provide a clamping part on the battery pole piece, and to form clamping grooves on the opposite sides of the clamping part. When the shell of the voltage patrol meter is installed with the battery pole piece, the clamping part is first inserted into the accommodating groove. At this time, the two clamping grooves on the clamping part coincide with the two clamping grooves respectively, and the locking pin is inserted from the clamping groove. After the locking pin passes through the clamping groove, it extends into the clamping groove and abuts and clamps with the groove wall of the clamping groove, so that the locking pin can abut against the clamping groove and the clamping groove respectively. The clamping groove belongs to the battery pole piece, and the clamping groove belongs to the shell, so that the shell and the battery pole piece are fixed by the locking pin. The design of providing the locking pin, the clamping groove and the clamping groove on both sides can further improve the stability of the connection, balance the stress, avoid wear or damage caused by force on one side alone, and thus extend the service life of the voltage patrol meter. The present application uses the coordinated relationship between the locking pin, the card slot and the connecting slot to enable the voltage patrol meter to be fixed to the battery pole piece without rivets and clips. The locking and unlocking with the battery pole piece can be achieved by pulling out and inserting the locking pin, 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 structure of the voltage patrol meter provided by the utility model;

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

[0021] Figure 3 This is a structural diagram of the voltage patrol meter provided by the utility model from another perspective;

[0022] Figure 4 A schematic structural diagram of the lock pin of the voltage patrol meter provided by the present utility model;

[0023] Figure 5 A schematic diagram of a portion of the structure of the lock pin of the voltage patrol meter provided by the present utility model;

[0024] Figure 6 This is a schematic structural diagram of the battery electrode provided by the utility model.

[0025] Description of Figure Numbers:

[0026] 100. Voltage patrol meter; 1. Housing; 11. Receiving slot; 12. Snap-fit ​​slot; 13. Snap-fit ​​hole; 14. Blocking member; 2. Snap-fit ​​assembly; 21. Lock pin; 22. Socket; 23. Baffle; 24. Buckle; 25. Guide slope; 26. Limiting portion; 27. Reinforcing rib; 3. Battery electrode; 31. Snap-fit ​​portion; 32. Snap-fit ​​slot; 33. Top plate; 34. Bottom plate; 35. Connecting plate.

[0027] 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

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In order to solve the above problems, the present invention provides a voltage patrol meter 100 .

[0033] Please combine Figures 1 to 6 The voltage patrol meter 100 of this embodiment is used to connect with the battery electrode 3. The battery electrode 3 is convex to form a clamping portion 31, and the opposite sides of the clamping portion 31 are respectively recessed to form a clamping groove 32. The voltage patrol meter 100 includes a shell 1 and a clamping assembly 2. The bottom of the shell 1 is provided with a receiving groove 11 for inserting the clamping portion. The opposite sides of the shell 1 are recessed to form two clamping grooves 12, and each clamping groove 12 is adapted to the shape of the corresponding clamping groove 32. When the clamping portion is inserted into the receiving groove 11, the clamping groove 12 is connected with the receiving groove 11 and coincides with the clamping groove 32; the clamping assembly 2 includes two locking pins 21 corresponding to the clamping groove 32 and the clamping groove 12. Each locking pin 21 is used to pass through the corresponding clamping groove 12 and insert into the corresponding clamping groove 32, and press against the groove wall of the clamping groove 32 to clamp the shell 1 to the battery electrode 3.

[0034] The technical solution of the present invention is to provide a clamping portion 31 on the battery electrode 3, and to form a clamping groove 32 on the opposite sides of the clamping portion 31. When the housing 1 of the voltage patrol meter 100 and the battery electrode 3 are installed, the clamping portion 31 is first inserted into the receiving groove 11. At this time, the two clamping grooves 32 on the clamping portion 31 overlap with the two clamping grooves 12 respectively. The lock pin 21 is inserted from the clamping groove 12. After the lock pin 21 passes through the clamping groove 12, it extends into the clamping groove 32 and is in contact with the clamping groove 32. The slot wall abuts and clamps, so that the locking pin 21 can abut against the card slot 32 and the card slot 12 respectively. The card slot 32 belongs to the battery pole piece 3, and the card slot 12 belongs to the shell 1, so that the shell 1 and the battery pole piece 3 are fixed by the locking pin 21, and the design of providing the locking pin 21, the card slot 32 and the card slot 12 on both sides can further improve the stability of the connection, balance the stress, and avoid wear or damage caused by force on one side alone, thereby extending the service life of the voltage patrol meter 100. The present application uses the matching relationship between the locking pin 21, the card slot 32 and the card slot 12 to enable the voltage patrol meter 100 to be fixed to the battery pole piece 3 without rivets and clips. The locking and unlocking with the battery pole piece 3 can be achieved by plugging and unplugging the locking pin 21, thereby simplifying the installation process of the voltage patrol meter 100 and improving its assembly efficiency.

[0035] In one embodiment, the engaging portion 31 includes a top plate 33, a bottom plate 34, and a connecting plate 35. The connecting plate 35 is connected between the top plate 33 and the bottom plate 34, and the width of the connecting plate 35 is smaller than the widths of the top plate 33 and the bottom plate 34. The top plate 33, the bottom plate 34, and the connecting plate 35 form a slot 32, and the locking pin 21 is used to abut against the top plate 33. By making the width of the connecting plate 35 smaller than the widths of the top plate 33 and the bottom plate 34 to form the slot 32, after the locking pin 21 is inserted into the slot 32, both the top and bottom of the locking pin 21 can be abutted and restrained by the top plate 33 and the bottom plate 34, thereby preventing the locking pin 21 from disengaging from the bottom of the slot 32, thereby improving the stability of the engaging connection.

[0036] Furthermore, a socket 22 for inserting the top plate 33 is provided on the lock pin 21 at a position corresponding to the top plate 33. The socket 22 is used to abut against the top plate 33. The provision of the socket 22 for inserting the top plate 33 on the lock pin 21 allows, after the lock pin 21 is inserted into the slot 32, the top plate 33 of the engaging portion 31 engages with the socket 22, thereby securing the lock pin 21 to the top plate 33 of the engaging portion 31. This achieves dual fixation of the top plate 33 to the socket 22 and the lock pin 21 to the slot 32, further enhancing the stability of the engagement between the lock pin 21 and the battery electrode 3. This also better locks the position of the top plate 33, preventing the lock pin 21 from shifting or loosening, and improving stability.

[0037] In one embodiment, there are multiple receiving slots 11, which are spaced apart on the housing 1 and are all connected to the engaging slots 12. The locking pin 21 is provided with multiple insertion holes 22, which are the same number as the receiving slots 11 and are arranged in a one-to-one correspondence. The multiple receiving slots 11 allow the housing 1 to be plugged and mated with multiple battery tabs 3. Therefore, the multiple insertion holes 22 are provided, and the multiple insertion holes 22 correspond one-to-one with the top plates 33 of the multiple battery tabs 3. This not only increases the number of support points on the locking pin 21, but also ensures a more stable connection between the locking pin 21 and each battery tab 3 without displacement. It also ensures a more uniform force applied to the locking pin 21 and the battery tab 3, preventing damage caused by excessive local force.

[0038] In one embodiment, baffles 23 are formed on opposite sides of the lock pin 21. A latch 24 is formed on a side of each baffle 23 facing away from the other baffle 23. A latch hole 13 is formed in the housing 1 at a position corresponding to each latch hole 24. The latch 24 is configured to engage with the latch hole 13 to secure the lock pin 21 to the housing 1. The engagement of the latch 24 with the latch hole 13 allows the opposite sides of the lock pin 21 to be connected to the housing 1. The latch 24 and the latch hole 13 are locked to secure the lock pin 21 to the housing 1, thereby preventing the latch 24 from deviating or detaching from the housing 1. This ensures that the lock pin 21 is engaged with both the battery electrode 3 and the housing 1, thereby improving the stability of the connection between the housing 1 and the battery electrode 3.

[0039] In one embodiment, a guide slope 25 is formed on each buckle 24, and the distance between the two guide slopes 25 is gradually reduced in the direction toward the engaging slot 12. The distance between the two guide slopes 25 is gradually reduced in the direction toward the engaging slot 12, that is, the guide slope 25 is inclined downward toward the other buckle 24 in the direction toward the engaging slot 32. This reduces friction between the buckle 24 and the housing 1 before the buckle 24 passes through the housing 1 and extends into the engaging hole 13, thereby reducing wear and tear and reducing resistance. This makes it easier for the buckle 24 to be inserted into the engaging hole 13, thereby improving assembly efficiency.

[0040] Specifically, the side of the buckle 24 facing away from the guide slope 25 is recessed toward the guide slope 25 to form a limiting portion 26. The limiting portion 26 is configured to engage with the side wall of the engaging hole 13 to limit the locking pin 21 in the engaging hole 13. The limiting portion 26 engages with the side wall of the engaging hole 13, so that the side wall of the engaging hole 13 limits the buckle 24 in the horizontal direction, preventing the locking pin 21 from moving or deviating in a direction perpendicular to the engaging portion 31, thereby improving the stability of the locking pin 21.

[0041] In one embodiment, the lock pin 21 is further provided with a reinforcing rib 27, which is located between the two baffles 23 and extends toward the engaging slot 12. The reinforcing rib 27 increases the strength of the lock pin 21, preventing the lock pin 21 from bending in the middle, thereby improving the positioning accuracy of the lock pin 21, preventing the lock pin 21 from deforming and misaligning, and further improving the stability of the lock pin 21.

[0042] In one embodiment, a stopper 14 is provided on the housing 1 at a position corresponding to the engaging slot 12. The shape of the stopper 14 matches that of the lock pin 21, and the stopper 14 abuts against the bottom of the lock pin 21 when the lock pin 21 is inserted into the engaging slot 32. The stopper 14 is sleeved over the lock pin 21. When the lock pin 21 is inserted into the engaging slot 32, the stopper 14 lifts and blocks the lock pin 21, preventing it from sinking, thereby improving the stability of the lock pin 21 and thereby improving the connection stability between the battery electrode 3 and the housing 1.

[0043] 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.

[0044] 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 is convex to form a clamping part, and the opposite sides of the clamping part are respectively concave to form a clamping groove, the voltage patrol meter includes: A housing, wherein a bottom portion of the housing is provided with a receiving groove for inserting the clamping portion, and portions of opposite sides of the housing corresponding to the two clamping grooves are respectively recessed to form two clamping grooves, each clamping groove being adapted to the shape of the corresponding clamping groove. When the clamping portion is inserted into the receiving groove, the clamping groove communicates with the receiving groove and overlaps with the clamping groove; The clamping assembly includes two locking pins corresponding to the clamping slot and the clamping slot, each locking pin is used to pass through the corresponding clamping slot and insert into the corresponding clamping slot, and press against the slot wall of the clamping slot to clamp the shell to the battery electrode.

2. The voltage inspection instrument according to claim 1, wherein: The clamping portion includes a top plate, a bottom plate and a connecting plate, wherein the connecting plate is connected between the top plate and the bottom plate, and the width of the connecting plate is smaller than the width of the top plate and the bottom plate, so that the top plate, the bottom plate and the connecting plate form the clamping groove, and the locking pin is used to press against the top plate.

3. The voltage patrol meter according to claim 2, characterized in that: A plug hole for inserting the top plate is provided on the locking pin at a position corresponding to the top plate, and the plug hole is used to press tightly against the top plate.

4. The voltage inspection instrument according to claim 3, wherein: There are multiple accommodating slots, which are spaced apart on the shell and are all connected to the snap-in slots. The locking pin is provided with multiple insertion holes, which are consistent in number with the accommodating slots and are arranged in one-to-one correspondence.

5. The voltage inspection instrument according to claim 4, characterized in that: Baffles are formed on opposite sides of the lock pin, and a buckle is formed on the side of each baffle facing away from the other baffle. The shell has a card hole formed at the position corresponding to each card hole, and the card hole is used to engage with the card hole to fix the lock pin to the shell.

6. The voltage patrol meter according to claim 5, characterized in that: A guide slope is formed on each of the buckles, and the distance between the two guide slopes is gradually reduced in the direction toward the clamping groove.

7. The voltage inspection instrument according to claim 6, characterized in that: The side of the buckle away from the guide slope is recessed toward the guide slope to form a limiting portion, and the limiting portion is used to engage with the side wall of the clamping hole to limit the locking pin to the clamping hole.

8. The voltage inspection instrument according to claim 5, wherein: The locking pin is further provided with a reinforcing rib, which is located between the two baffles and extends toward the clamping slot.

9. The voltage patrol meter according to any one of claims 1 to 8, characterized in that: The housing is provided with a blocking member at a position corresponding to the engaging slot. The shape of the blocking member matches the shape of the locking pin, and the blocking member abuts against the bottom of the locking pin when the locking pin is inserted into the engaging slot.

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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