CN220040528U - Cylindrical battery test clamping device - Google Patents

Abstract

The utility model provides a cylindrical battery test clamping device, which relates to the technical field of cylindrical batteries and has the technical scheme that: the device comprises a shell, wherein a supporting plate is arranged in the middle of the shell, and a containing groove is formed in the supporting plate; the shell is fixedly provided with a first clamping plate on one side of the supporting plate, and the shell is slidably provided with a second clamping plate on the other side of the supporting plate; two ends of the supporting plate are respectively provided with gaps with the first clamping plate and the second clamping plate; the first clamping plate and the second clamping plate are correspondingly provided with paired pole bases in a telescopic mode on the inner surfaces facing each other, the periphery of each pole base is connected with a charging cable, the end portion of each pole base is provided with a probe, and each probe is connected with a monitoring cable. The cylindrical battery test clamping device provided by the utility model has the advantages of adapting to test clamping of cylindrical batteries with various sizes and performing stable contact connection with the lugs of the cylindrical batteries.

Description

Cylindrical battery test clamping device

Technical Field

The utility model relates to the technical field of cylindrical batteries, in particular to a cylindrical battery test clamping device.

Background

Along with the development of social economy, low-carbon emission reduction becomes particularly important, the development of a power battery of a new energy automobile is always an important point in the field of automobile research, and the development of a lithium battery serving as a power battery of most new energy automobiles also becomes a main research direction of various large battery factories and automobile enterprises, and the lithium battery can be divided into square batteries, soft package batteries, cylindrical batteries and the like according to different structures. The cylindrical lithium battery can be divided into a single-pole ear cylindrical battery, a multi-pole ear cylindrical battery, a full-pole ear cylindrical battery and the like according to the different number of the pole ears. The full-lug cylindrical battery directly connects the positive and negative current collectors with the cover plate or the shell, turns the whole current collector into a lug, increases the current conduction area in multiple, shortens the current conduction distance, greatly reduces the internal resistance of the battery and improves the charge and discharge peak power.

After the full-tab cylindrical battery is developed and produced, the full-tab cylindrical battery needs to be subjected to charge and discharge testing, the charging equipment of the power battery is usually provided with a positive charging cable and a negative charging cable, the output end of the charging cable is mostly a copper nose wiring port, and the tab of the full-tab cylindrical battery is usually a plane or a curved surface and is difficult to connect with the output port of the charging cable, so that a clamping device needs to be tested to connect the tab surface of the full-tab cylindrical battery with the charging cable of the charging equipment when the charge and discharge performance of the full-tab cylindrical battery is tested.

In view of the above, improvements are needed.

Disclosure of Invention

The utility model aims to provide a cylindrical battery test clamping device which has the advantages of adapting to test clamping of cylindrical batteries with various sizes and performing stable contact connection with the lugs of the cylindrical batteries.

The utility model provides a cylindrical battery test clamping device, which has the following technical scheme:

the device comprises a shell, wherein a supporting plate is arranged in the middle of the shell, and a containing groove is formed in the supporting plate; the shell is fixedly provided with a first clamping plate on one side of the supporting plate, and the shell is slidably provided with a second clamping plate on the other side of the supporting plate; two ends of the supporting plate are respectively provided with gaps with the first clamping plate and the second clamping plate;

the first clamping plate and the second clamping plate are correspondingly provided with paired pole bases in a telescopic manner on the inner surfaces facing each other, the periphery of each pole base is connected with a charging cable, the end part of each pole base is provided with a probe, and each probe is connected with a monitoring cable;

the accommodating groove and the pole bases positioned at two sides of the accommodating groove form an accommodating cavity for limiting and placing the cylindrical battery along the length direction of the shell;

the accommodating grooves are abutted against the side parts of the cylindrical batteries, and the paired electrode holders are respectively abutted against the two ends of the cylindrical batteries;

the number of the accommodating cavities is at least one, the accommodating cavities are sequentially arranged along the width direction of the shell, and each accommodating cavity is correspondingly provided with a pair of pole bases.

The utility model provides a cylindrical battery test clamping device, which takes a shell as a bearing structure, a supporting plate provided with a containing groove is arranged in the middle of the shell to form a side bearing for a cylindrical battery, a first clamping plate is fixedly arranged on one side of the supporting plate by the shell, a second clamping plate is arranged on the other side of the supporting plate by the shell in a sliding way, the distance between the first clamping plate and the second clamping plate is adjusted under the sliding action of the second clamping plate, the test clamping device is suitable for testing and clamping cylindrical batteries with different sizes, gaps are reserved between two ends of the supporting plate and the first clamping plate and between the second clamping plate respectively, a connecting space is reserved for lugs at two ends of the cylindrical battery to prevent poor contact, paired polar seats are correspondingly arranged on the inner surfaces of the first clamping plate and the second clamping plate facing each other in a telescopic way, the circumference of each polar seat is connected with a charging cable, a probe is arranged at the end part of each polar seat, each probe is connected with a monitoring cable, through correspondingly connecting the paired electrode holders and probes with the electrode lugs at the two ends of the cylindrical battery respectively, under the structural characteristics of the base body of the electrode holders, the probes and the electrode lugs of the cylindrical battery are fully contacted and stably connected, poor contact or difficult contact connection is prevented, the containing grooves and the electrode holders positioned at the two sides of the containing grooves form containing cavities for limiting and placing the cylindrical battery along the length direction of the shell, the containing grooves are abutted to the side parts of the cylindrical battery, the paired electrode holders are abutted to the two ends of the cylindrical battery respectively, limiting and fixing of the cylindrical battery are realized through the structure, the clamping stability and the connecting accuracy of the cylindrical battery in the testing and clamping process are ensured, the number of the containing cavities is at least one, the containing cavities are sequentially arranged along the width direction of the shell, each containing cavity is correspondingly provided with a pair of electrode holders, and the method is convenient for limiting and fixing the cylindrical battery according to the actual use requirements, the accommodation number of the cylindrical batteries is adjusted.

Further, in the utility model, the pole base is of a columnar structure, and the peripheral dimension of the pole base is larger than the peripheral dimension of the pole lug of the cylindrical battery.

According to the cylindrical battery test clamping device, the pole base is of the cylindrical structure, stable connection with the pole lugs of the cylindrical battery is facilitated, poor contact is avoided, the peripheral size of the pole base is larger than that of the pole lugs of the cylindrical battery, full contact between the pole base and the pole lugs of the cylindrical battery is achieved, stable connection of the pole base and the pole lugs of the cylindrical battery is guaranteed, and mutual separation or poor contact is avoided.

Further, in the utility model, the accommodating groove is in an arc-shaped structure with a concave middle part, and the groove surface size of the accommodating groove is larger than or equal to the side part size of the cylindrical battery.

According to the cylindrical battery test clamping device, the accommodating groove is of the arc-shaped structure with the concave middle part, the accommodating groove is more adaptive to the side part shape of the cylindrical battery, the cylindrical battery is convenient to place in a limiting mode, the groove face size of the accommodating groove is larger than or equal to the side part size of the cylindrical battery, and the accommodating groove is used for improving the size adaptability of the accommodating groove to the cylindrical battery and achieving accommodating placement of the cylindrical battery with various sizes.

Further, in the utility model, the first clamping plate and the second clamping plate are correspondingly provided with the screw rods in a penetrating way, the screw rods are in threaded connection with the first clamping plate, the screw rods are in threaded connection with the second clamping plate, and one end, close to the first clamping plate and far away from the second clamping plate, of the screw rods is connected with a first stop piece.

According to the cylindrical battery test clamping device, the first clamping plate and the second clamping plate are correspondingly provided with the screw rods in a penetrating manner, so that the screw rods are in threaded connection with the first clamping plate, the screw rods are in threaded connection with the second clamping plate, the distance between the first clamping plate and the second clamping plate can be accurately controlled through the screw rods, an accurate adjusting effect is achieved, and the screw rods are connected with the first stopping piece at one ends, close to the first clamping plate and far away from the second clamping plate, and are used for locking connection between the first clamping plate and the screw rods, so that good fixing effects are kept.

In the utility model, the first clamping plate and the second clamping plate are correspondingly provided with the guide rods in a penetrating way, one end, away from the second clamping plate, of the guide rods is fixedly connected with the first clamping plate, and the guide rods are in sliding connection with the second clamping plate.

Further, in the present utility model, the screw is connected with a second stopper at an end close to the second clamping plate and facing away from the first clamping plate.

Further, in the present utility model, the screw is provided with a driving member at an end portion near the second clamping plate.

Further, in the present utility model, an elastic member is provided between the pole base on the second clamping plate and the second clamping plate, and the pole base on the second clamping plate slides in a telescopic manner in the thickness direction of the second clamping plate.

Further, in the utility model, a first flange and a second flange are sequentially arranged at two ends of the pole seat positioned on the second clamping plate from front to back, the second clamping plate is positioned between the first flange and the second flange, the second clamping plate is abutted against the second flange, the elastic piece is positioned between the first flange and the second clamping plate, and two ends of the elastic piece are respectively abutted against the first flange and the second clamping plate.

Further, in the utility model, the shell is made of steel, and an insulating layer is coated on the outer wall of the shell.

It can be seen from the above that the cylindrical battery testing and clamping device provided by the utility model takes the shell as a bearing structure, the middle part of the shell is provided with the supporting plate provided with the accommodating groove to form a side bearing for the cylindrical battery, the shell is fixedly provided with the first clamping plate on one side of the supporting plate, the shell is slidably provided with the second clamping plate on the other side of the supporting plate, the distance between the first clamping plate and the second clamping plate is adjusted under the sliding action of the second clamping plate, the device adapts to the testing and clamping of cylindrical batteries with different sizes, the two ends of the supporting plate are respectively provided with gaps with the first clamping plate and the second clamping plate, the connecting space is reserved for the lugs at the two ends of the cylindrical battery to prevent the lugs from poor contact, the first clamping plate and the second clamping plate are correspondingly provided with paired polar seats in a telescopic manner on the inner surfaces facing each other, the periphery of each polar seat is connected with a charging cable, and the end part of each polar seat is provided with a probe, each probe is connected with a monitoring cable, through correspondingly connecting paired electrode holders and probes with the electrode lugs at two ends of the cylindrical battery respectively, under the structural characteristics of the base body of the electrode holders, the probes and the electrode lugs of the cylindrical battery are fully contacted and stably connected, poor contact or difficult contact connection is prevented, a containing cavity for limiting the cylindrical battery is formed by the containing groove and the electrode holders positioned at two sides of the containing groove along the length direction of the shell, the containing groove is abutted against the side parts of the cylindrical battery, the paired electrode holders are respectively abutted against two ends of the cylindrical battery, limiting fixation of the cylindrical battery is realized through the structure, the clamping stability and the connection accuracy of the cylindrical battery in the test clamping process are ensured, the number of the containing cavities is at least one, the containing cavities are sequentially arranged along the width direction of the shell, each containing cavity is correspondingly provided with a pair of electrode holders, and the device is convenient for meeting the actual use requirements, adjusting the accommodating quantity of the cylindrical batteries; the pole base is in a columnar structure, so that stable connection with the pole lug of the cylindrical battery is facilitated, poor contact is avoided, the peripheral size of the pole base is larger than that of the pole lug of the cylindrical battery, full contact between the pole base and the pole lug of the cylindrical battery is realized, stable connection of the pole base and the pole lug of the cylindrical battery is ensured, and mutual separation or poor contact is avoided; the accommodating groove is of an arc-shaped structure with a concave middle part, is more adaptive to the shape of the side part of the cylindrical battery, is convenient for limiting and placing the cylindrical battery, and has a groove surface size which is larger than or equal to the side part size of the cylindrical battery, so that the accommodating groove is used for improving the size adaptability of the accommodating groove to the cylindrical battery and realizing the accommodating and placing of the accommodating groove to various cylindrical batteries with different sizes; the screw rod is correspondingly arranged on the first clamping plate and the second clamping plate in a penetrating mode, the screw rod is used for optimizing distance adjustment between the first clamping plate and the second clamping plate, the screw rod is in threaded connection with the first clamping plate, the screw rod is convenient to accurately control the distance between the first clamping plate and the second clamping plate through the screw rod, an accurate adjusting effect is achieved, the screw rod is connected with a first stopping piece at one end, close to the first clamping plate, deviating from the second clamping plate, and the screw rod is used for connecting and locking the first clamping plate and the screw rod, so that good fixing effect is kept between the first clamping plate and the screw rod.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

Fig. 1 is a schematic structural diagram of a cylindrical battery test clamping device provided by the utility model.

Fig. 2 is a schematic diagram of a part of a structure of a cylindrical battery test clamping device provided by the utility model.

Fig. 3 is a schematic structural diagram of a polar seat portion of a cylindrical battery testing and clamping device according to the present utility model under a first view angle.

Fig. 4 is a schematic structural diagram of a polar seat portion of a cylindrical battery testing and clamping device according to the present utility model under a second view angle.

Fig. 5 is a cross-sectional perspective view of a polar mount portion of a cylindrical battery test clamping device provided by the present utility model.

In the figure: 1. a housing; 2. a supporting plate; 3. a first clamping plate; 4. a second clamping plate; 5. a pole base; 6. a screw rod; 7. a charging cable; 8. monitoring cables; 9. a guide rod; 10. a first stopper; 11. a second stopper; 12. a driving member; 13. a probe; 14. an elastic member; 15. and (5) a mounting seat.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent, and the embodiments described in detail, but are not necessarily limited to the embodiments of the utility model. The components of the present utility model, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 3, the utility model provides a cylindrical battery testing and clamping device, which comprises a shell 1, wherein a supporting plate 2 is arranged in the middle of the shell 1, and the supporting plate 2 is provided with a containing groove; a first clamping plate 3 is fixedly arranged on one side of the supporting plate 2 of the shell 1, and a second clamping plate 4 is slidably arranged on the other side of the supporting plate 2 of the shell 1; two ends of the supporting plate 2 are respectively provided with a gap with the first clamping plate 3 and the second clamping plate 4; the first clamping plate 3 and the second clamping plate 4 are correspondingly provided with a pair of pole bases 5 in a telescopic manner on the inner surfaces facing each other, the periphery of each pole base 5 is connected with a charging cable 7, the end part of each pole base 5 is provided with a probe 13, and each probe 13 is connected with a monitoring cable 8; the containing groove and the pole bases 5 positioned at two sides of the containing groove form a containing cavity for limiting and placing the cylindrical battery along the length direction of the shell 1; the accommodating grooves are abutted against the side parts of the cylindrical batteries, and the paired electrode holders 5 are respectively abutted against the two ends of the cylindrical batteries; the number of the accommodating cavities is at least one, the accommodating cavities are sequentially arranged along the width direction of the shell 1, and each accommodating cavity is correspondingly provided with a pair of pole bases 5.

In particular, in the process of testing and clamping cylindrical batteries, the lug of the cylindrical battery is usually a plane or a curved surface and is difficult to be connected with an output port of a charging cable 7, in order to solve the problems, and adapt to testing and clamping of cylindrical batteries with various sizes, the embodiment of the utility model provides a cylindrical battery testing and clamping device, which comprises a shell 1, a bearing structure taking the shell 1 as a base, a supporting plate 2 is arranged in the middle of the shell 1, the supporting plate 2 is provided with a containing groove, the containing groove plays a bearing role on the side part of the cylindrical battery, a first clamping plate 3 is fixedly arranged on one side of the supporting plate 2, a second clamping plate 4 is slidably arranged on the other side of the supporting plate 2 by the shell 1, the distance between the first clamping plate 3 and the second clamping plate 4 is adjusted under the fixed role of the first clamping plate 3 and the sliding role of the second clamping plate 4, so as to adapt to testing and clamping of cylindrical batteries with different sizes, a connecting space is reserved for the lug at two ends of the cylindrical battery, the two ends of the supporting plate 2, the electrode 5 of the cylindrical battery is prevented from being blocked by the 2, simultaneously, a probe is prevented from being connected with a pole 5 in the embodiment, and a probe 5 is also difficult to be connected with a probe 13 through a telescopic wire seat, which is connected with the end part of the electrode 5 of the cylindrical battery 5 through a cable 5, and a probe 13, and a good connection seat is formed between the probe 5 and a cable 5, and a probe 13 is connected with the end seat and the end part of the probe 5, make monitoring cable 8 also be in circuit on state, realize the test and the detection to cylindrical battery, promptly through with paired polar seat 5, probe 13 respectively with the lug at cylindrical battery both ends corresponds to be connected, under the pedestal structural feature of polar seat 5, realize polar seat 5, probe 13 and the lug of cylindrical battery's abundant contact and stable connection, prevent that the contact is bad or be difficult to contact and connect, the holding tank forms the holding chamber that is used for spacing the cylindrical battery with the polar seat 5 that is located the holding tank both sides along the length direction of casing 1, holding tank butt cylindrical battery's lateral part, paired polar seat 5 butt cylindrical battery's both ends respectively, then realize spacing fixedly to cylindrical battery through above-mentioned structure, guarantee cylindrical battery's centre gripping stability and connection accuracy in test centre gripping in-process, wherein, the holding chamber is arranged along the length direction of casing 1, then do benefit to the distance adjustment between first splint 3, the second splint 4's slip regulation reserve bigger accommodation space, make structural layout more reasonable, the quantity of holding chamber is at least one, the holding chamber sets up along the casing width direction in proper order, the holding chamber sets up the corresponding space along the casing 1, the length direction is more than the cylindrical battery is adjusted to the actual setting up for the cylindrical battery, the demand is satisfied for the cylindrical battery, the size is set up for the size is more than the cylindrical battery is adjusted to the actual setting up to the size, the size is more than the size is adjusted, the size is more than the size is suitable for the cylindrical battery, the size is adjusted, the size is more than the size is suitable for the size to be used to the size. In this embodiment, the number of the accommodating cavities is two, each accommodating cavity is correspondingly provided with a pair of polar seats 5, correspondingly, each accommodating cavity is correspondingly provided with a supporting plate 2, and two ends of the supporting plate 2 are respectively provided with a gap with the first clamping plate 3 and the second clamping plate 4, so that the cylindrical battery can be conveniently placed, and sufficient space is provided for full contact between the polar seats 5 and polar lugs at two ends of the cylindrical battery; when the number of the accommodating cavities is one, the positions of the accommodating cavities are positioned in the middle of the shell 1, so that the balance of the whole structure is ensured.

In some preferred embodiments, the pole base 5 has a columnar structure, and the peripheral dimension of the pole base 5 is larger than the peripheral dimension of the tab of the cylindrical battery.

Specifically, as shown in fig. 1 and 3, the pole base 5 is in a columnar structure, so that stable connection with the pole lug of the cylindrical battery is facilitated, poor contact is avoided, the peripheral size of the pole base 5 is larger than that of the pole lug of the cylindrical battery, full contact between the pole base 5 and the pole lug of the cylindrical battery is realized, stable connection of the pole base 5 and the pole lug of the cylindrical battery is ensured, mutual separation or poor contact is avoided, and the problem that stable contact connection is difficult because the pole lug of the cylindrical battery is a plane or a curved surface is effectively solved. The peripheral dimension of the pole base 5 is the peripheral outer diameter dimension of the pole base 5 with a cylindrical structure, and the peripheral dimension of the pole lug of the cylindrical battery is the peripheral outer diameter dimension of the pole lug of the cylindrical battery.

In some preferred embodiments, the accommodating groove has an arc structure with a concave middle part, and the groove surface size of the accommodating groove is larger than or equal to the side part size of the cylindrical battery.

Specifically, as shown in fig. 1, the side portion of the cylindrical battery is in a columnar structure, so in this embodiment, the accommodating groove is in an arc structure with a recessed middle portion, so that the accommodating groove is more adaptive to the side portion shape of the cylindrical battery, and is convenient for limiting and placing the cylindrical battery, wherein the groove face size of the accommodating groove is greater than or equal to the side portion size of the cylindrical battery, and the accommodating groove is used for improving the size adaptability of the accommodating groove to the cylindrical battery, so that the accommodating groove can accommodate and place the cylindrical battery with various different sizes.

In some preferred embodiments, the first clamping plate 3 and the second clamping plate 4 are correspondingly provided with a screw rod 6 in a penetrating manner, the screw rod 6 is in threaded connection with the first clamping plate 3, the screw rod 6 is in threaded connection with the second clamping plate 4, and the screw rod 6 is connected with a first stop member 10 at one end close to the first clamping plate 3 and far away from the second clamping plate 4.

Specifically, as shown in fig. 1 and fig. 2, unlike the common adjustment manner, in this embodiment, in order to optimize the distance adjustment operation in the process of testing and clamping the cylindrical battery, the first clamping plate 3 and the second clamping plate 4 are configured with accurate adjustment structures, that is, the first clamping plate 3 and the second clamping plate 4 are correspondingly provided with the screw rod 6 in a penetrating manner, so as to form the distance adjustment structure, wherein the screw rod 6 is in threaded connection with the first clamping plate 3, the screw rod 6 is in threaded connection with the second clamping plate 4, the distance adjustment between the first clamping plate 3 and the second clamping plate 4 is realized by rotating the screw rod 6, under the structural characteristic of threaded connection, the distance adjustment between the first clamping plate 3 and the second clamping plate 4 becomes more accurate and stable, thereby enabling an accurate and reasonable plate distance to be provided between the first clamping plate and the cylindrical battery, and playing a role of limiting the degree of freedom of the screw rod 6 and the first clamping plate 3 after the distance adjustment is completed, the screw rod 6 is connected with a first stop member 10 at one end close to the first clamping plate 3 and far away from the second clamping plate 4, and the first stop member 10 is controlled, so that the first stop member 10 and the first clamping plate 3 and the screw rod 6 are kept well fixed. The first stopper 10 may be a snap locking structure or a threaded locking structure in threaded connection with the screw rod 6, so that locking and fixing between the first clamping plate 3 and the screw rod 6 can be conveniently achieved. Additionally, the first stop 10 may be, but is not limited to, a snap-in locking arrangement, a threaded locking arrangement. In this embodiment, the connection manner between the first stopper 10 and the screw rod 6 is threaded connection, when the screw rod 6 rotates, the first stopper 10 rotates synchronously along with the screw rod 6, that is, the first stopper 10 and the screw rod 6 keep relatively static, under the rotation action of the screw rod 6, the first stopper 10 and the first clamping plate 3 form and keep a structure state of abutting and fixing, an idle structure is formed between the screw rod 6 and the first clamping plate 3, the second clamping plate 4 continues to perform stroke change along the screw rod 6 until the second clamping plate 4 moves to a target position, thereby effectively preventing stroke change between the screw rod 6 and the first clamping plate 3 while preventing shaking between the screw rod 6 and the first clamping plate 3, further playing a good fixing role on a cylindrical battery, and facilitating subsequent testing. In a more preferred embodiment, the screw rod 6 is connected with the first clamping plate 3 through a bearing, and the bearing is used as an idle structure between the screw rod 6 and the first clamping plate 3, so that the phenomenon of shaking or poor precision caused by conventional penetrating connection between the screw rod 6 and the first clamping plate 3 is avoided. Wherein the structure for functioning as an idle rotation may be, but is not limited to, a bearing.

In some preferred embodiments, the first clamping plate 3 and the second clamping plate 4 are correspondingly penetrated with a guide rod 9, one end of the guide rod 9 away from the second clamping plate 4 is fixedly connected with the first clamping plate 3, and the guide rod 9 is in sliding connection with the second clamping plate 4.

Specifically, in order to make the adjustment of distance more stable in the adjustment process of the lead screw 6, avoid producing the oblique interference effort of direction, in this embodiment, first splint 3, second splint 4 correspond wear to be equipped with guide bar 9, guide bar 9 keeps away from the one end and first splint 3 fixed connection of second splint 4, guide bar 9 and second splint 4 sliding connection, through above-mentioned structure, first splint 3 and lead screw 6 remain fixed, second splint 4 is along being close to the direction of first splint 3 or keep away from the direction of first splint 3 and simultaneously on lead screw 6, guide bar 9 reciprocating motion, wherein, second splint 4 still can keep relatively static with lead screw 6, through the reciprocal slip of second splint 4 on guide bar 9, second splint 4 and lead screw 6 are synchronous to carry out the distance adjustment along the direction of being close to first splint 3 or keep away from first splint 3, thereby under the structural feature of guide bar 9, play good guide effect, avoid taking place the skew or producing the interference effort.

In some preferred embodiments, the number of guide bars 9 is at least one.

Specifically, in order to optimize the guiding function and make the guiding rod 9 have balanced guiding force, the first clamping plate 3 and the second clamping plate 4 are correspondingly provided with at least one guiding rod 9, and the at least one guiding rod 9 is uniformly and symmetrically arranged on the first clamping plate 3 and the second clamping plate 4, so that the balancing effect in the guiding sliding process is maintained. In this embodiment, the number of the guide rods 9 is four, and the four guide rods 9 are symmetrically disposed on both sides of the first clamping plate 3 and the second clamping plate 4 along the width direction of the housing 1, so as to ensure stability and balance of the second clamping plate 4 and the screw rod 6 in the guide sliding process, and prevent offset.

In some preferred embodiments, the screw 6 is connected with a second stop 11 at an end close to the second clamping plate 4 and facing away from the first clamping plate 3.

Specifically, in order to further strengthen the fixing effect after the distance adjustment is finished, the screw rod 6 is connected with the second stopper 11 at one end that is close to the second clamping plate 4 and deviates from the first clamping plate 3, so that the locking fixation of the second clamping plate 4 is realized, namely, when the second clamping plate 4 is adjusted to a target position along the screw rod 6 in a threaded manner, the second clamping plate 4 and the screw rod 6 are locked and fixed through controlling the second stopper 11, the sliding displacement of the second clamping plate 4 and the screw rod 6 is prevented, and the stability in the clamping process of testing a cylindrical battery is maintained. In addition, the second stopper 11 may be, but is not limited to, a snap-in locking structure, a screw locking structure. In this embodiment, the connection mode between the second stop member 11 and the screw rod 6 is threaded connection, when the screw rod 6 rotates, the second stop member 11 rotates synchronously along with the screw rod 6, that is, the second stop member 11 and the screw rod 6 keep relatively static, when the second clamping plate 4 moves to the target position under the rotation action of the screw rod 6, the second stop member 11 is rotated to enable the second stop member 11 to approach and abut against the second clamping plate 4, so that locking fixation between the screw rod 6 and the second clamping plate 4 is realized, stroke change between the screw rod 6 and the second clamping plate 4 is prevented, and a good fixing effect is achieved on the cylindrical battery, thereby facilitating subsequent testing.

In some preferred embodiments, the screw 6 is provided with a drive 12 at the end near the second clamping plate 4.

Specifically, in order to conveniently drive the screw rod 6, the screw rod 6 is provided with a driving member 12 at an end portion close to the second clamping plate 4, and convenient power support is provided for the screw rod 6 by controlling the driving member 12. In order to further optimize the driving adjustment effect on the screw rod 6, the driving member 12 may be a knob, the screw rod 6 is rotated by twisting the knob to play a role in distance adjustment, the driving member 12 may also be a hexagonal nut, the hexagonal nut is rotated by a torque wrench, and the screw rod 6 is further rotated to produce a distance adjustment effect, wherein the driving member 12 includes, but is not limited to, a knob and a hexagonal nut.

In some preferred embodiments, an elastic member 14 is provided between the pole base 5 on the second clamping plate 4 and the second clamping plate 4, and the pole base 5 on the second clamping plate 4 slides telescopically in the thickness direction of the second clamping plate 4.

Specifically, as shown in fig. 3 and 4, in order to form a more stable and safer connection structure between the electrode holder 5 and the probe 13 on the second clamping plate 4 and the corresponding electrode lug of the cylindrical battery, an elastic member 14 is disposed between the electrode holder 5 and the second clamping plate 4, and the electrode holder 5 on the second clamping plate 4 slides in a telescopic manner along the thickness direction of the second clamping plate 4, that is, the electrode holder 5 on the second clamping plate 4 and the probe 13 on the electrode holder 5 slide in a telescopic manner synchronously, so that in the adjusting process of the electrode holder 5 and the probe 13 abutting against the electrode lug of the cylindrical battery by the second clamping plate 4, the connection between the electrode holder 5 and the probe 13 and the electrode lug of the cylindrical battery is more stable and safer through the elastic buffering action of the elastic member 14, and the damage of components caused by direct collision is avoided.

In some preferred embodiments, the two ends of the pole seat 5 on the second clamping plate 4 are sequentially provided with a first flange and a second flange from front to back, the second clamping plate 4 is positioned between the first flange and the second flange, the second clamping plate 4 is abutted against the second flange, the elastic piece 14 is positioned between the first flange and the second clamping plate 4, and the two ends of the elastic piece 14 are respectively abutted against the first flange and the second clamping plate 4.

Specifically, in order to optimize the mounting structure of the elastic member 14, the two ends of the pole seat 5 located on the second clamping plate 4 are sequentially provided with a first flange and a second flange from front to back, so as to play a role in limiting connection of the elastic member 14 and the second clamping plate 4, the second clamping plate 4 is located between the first flange and the second flange, the second clamping plate 4 abuts against the second flange to form a guiding sliding structure of the pole seat 5 along the second clamping plate 4, the elastic member 14 is located between the first flange and the second clamping plate 4, the two ends of the elastic member 14 abut against the first flange and the second clamping plate 4 respectively, and elastic support limiting of the elastic member 14 to the pole seat 5 and the second clamping plate 4 is formed, wherein the direction from front to back refers to the direction formed by the position of the pole seat 5 from the position close to the supporting plate 2 to the position away from the supporting plate 2, by the structure, under the elastic effect of the elastic member 14, the pole seat 5 slides in a telescopic manner along the thickness direction of the second clamping plate 4, and meanwhile has a buffering effect, so that the safety and stability of the pole seat 5 and the probe 13 during pole connection with the cylindrical battery are ensured. In this embodiment, the second clamping plate 4 is fixed with a mounting seat 15, and the second clamping plate 4 is connected to the pole base 5 and the elastic member 14 through the mounting seat 15. In this embodiment, the elastic member 14 is a spring, where the elastic member 14 includes, but is not limited to, a spring, so that the pole base 5 is telescopically disposed on the inner surfaces of the first clamping plate 3 and the second clamping plate 4 facing each other, and further plays a role in buffering and protecting the test clamping of the cylindrical battery.

In some preferred embodiments, probe 13 is a retractable probe.

Specifically, as shown in fig. 5, in order to further enhance the buffering effect, the probe 13 is configured as a retractable probe, so that the retractable probe and the elastic member 14 form a dual buffering protection structure, and when the electrode holder 5 and the retractable probe are connected with the electrode lug of the cylindrical battery, the electrode holder 5 and the retractable probe are fully contacted and stably connected with the electrode lug of the cylindrical battery in a buffering manner under the buffering effect of the electrode holder 5 and the buffering effect of the retractable probe, so that the subsequent stable clamping and testing of the cylindrical battery are facilitated.

In some preferred embodiments, the housing 1 is of steel material, and the outer wall of the housing 1 is clad with an insulating layer.

Specifically, as shown in fig. 1, the cylindrical batteries are all of a certain weight, and when testing a plurality of cylindrical batteries, the housing 1 needs to have enough structural strength, and also needs to have enough rigidity, so in this embodiment, the housing 1 is made of steel, the rigidity and the structural strength are enhanced, the outer wall of the housing 1 is coated with an insulating layer, and then the insulating layer is used for realizing the insulating effect of the housing 1, so as to avoid the electric shock phenomenon when testing the cylindrical batteries.

In some preferred embodiments, the cross section of the housing 1 has a U-shaped structure, and the height of the housing 1 is kept level with the height of the first clamping plate 3 and the second clamping plate 4.

Specifically, as shown in fig. 1 and 2, in this embodiment, in order to form an effective protection structure, the cross section of the housing 1 is in a U-shaped structure, and in order to play a role in safely accommodating the first clamping plate 3 and the second clamping plate 4, the height of the housing 1 is kept flush with the height of the first clamping plate 3 and the height of the second clamping plate 4, so that the first clamping plate 3 and the second clamping plate 4 are reasonably and safely accommodated in a space formed by the housing 1, and further, the cylindrical battery is clamped and tested more safely and stably. In this embodiment, as another preferred embodiment, the height of the housing 1 is smaller than the height of the first clamping plate 3, the height of the housing 1 is larger than the height of the first clamping plate 4, the height of the housing 1 is equal to the average height of the first clamping plate 3 and the second clamping plate 4, the housing 1 is installed in a retracted manner on the first clamping plate 3 and the second clamping plate 4, and the stability of the overall structure is ensured.

Through the technical proposal, the cylindrical battery testing and clamping device provided by the utility model takes the shell 1 as a bearing structure, the middle part of the shell 1 is provided with the supporting plate 2 provided with the containing groove to form a lateral bearing for the cylindrical battery, the shell 1 is fixedly provided with the first clamping plate 3 at one side of the supporting plate 2, the shell 1 is slidably provided with the second clamping plate 4 at the other side of the supporting plate 2, the distance between the first clamping plate 3 and the second clamping plate 4 is adjusted under the sliding action of the second clamping plate 4, the testing and clamping device adapts to the testing and clamping of the cylindrical battery with different sizes, the two ends of the supporting plate 2 are respectively provided with the first clamping plate 3 and the second clamping plate 4, the connecting space is reserved for the lugs at the two ends of the cylindrical battery to prevent the poor contact, the first clamping plate 3 and the second clamping plate 4 are correspondingly provided with the paired polar seats 5 in a telescopic way on the inner surfaces facing each other, the circumference of each polar seat 5 is connected with the charging cable 7, the end of each pole seat 5 is provided with a probe, each probe is connected with a monitoring cable 8, the paired pole seats 5 and probes are respectively and correspondingly connected with the pole lugs at the two ends of the cylindrical battery, under the structural characteristics of the seat body of the pole seat 5, the full contact and stable connection of the pole seats 5 and the pole lugs of the cylindrical battery are realized, poor contact or difficult contact connection is prevented, a containing cavity for limiting the cylindrical battery is formed by the containing groove and the pole seats 5 positioned at the two sides of the containing groove along the length direction of the shell 1, the containing groove is abutted against the side part of the cylindrical battery, the paired pole seats 5 are respectively abutted against the two ends of the cylindrical battery, limiting fixation of the cylindrical battery is realized through the structure, the clamping stability and the connecting accuracy of the cylindrical battery in the testing and clamping process are ensured, the number of the containing cavities is at least one, the containing cavities are sequentially arranged along the width direction of the shell 1, each containing cavity is correspondingly provided with a pair of pole bases 5, so that the containing quantity of the cylindrical batteries can be conveniently adjusted according to actual use requirements; the pole base 5 is of a columnar structure, so that stable connection with the pole lugs of the cylindrical battery is facilitated, poor contact is avoided, the peripheral size of the pole base 5 is larger than that of the pole lugs of the cylindrical battery, full contact between the pole base 5 and the pole lugs of the cylindrical battery is realized, stable connection of the pole base 5 and the pole lugs of the cylindrical battery is ensured, and mutual separation or poor contact is avoided; the accommodating groove is of an arc-shaped structure with a concave middle part, is more adaptive to the shape of the side part of the cylindrical battery, is convenient for limiting and placing the cylindrical battery, and has a groove surface size which is larger than or equal to the side part size of the cylindrical battery, so that the accommodating groove is used for improving the size adaptability of the accommodating groove to the cylindrical battery and realizing the accommodating and placing of the accommodating groove to various cylindrical batteries with different sizes; the lead screw 6 is correspondingly arranged in a penetrating manner between the first clamping plate 3 and the second clamping plate 4, the lead screw 6 is in threaded connection with the first clamping plate 3, the lead screw 6 is in threaded connection with the second clamping plate 4, the distance between the first clamping plate 3 and the second clamping plate 4 is adjusted by rotating the lead screw 6, so that an accurate adjusting effect is achieved, the lead screw 6 is connected with the first stopping piece 10 at one end, close to the first clamping plate 3, away from the second clamping plate 4, and then is used for connecting and locking the first clamping plate 3 and the lead screw 6, so that a good fixing effect is kept between the first clamping plate 3 and the lead screw 6.

The above description is only an example of the present utility model and is not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The cylindrical battery testing and clamping device is characterized by comprising a shell, wherein a supporting plate is arranged in the middle of the shell, and a containing groove is formed in the supporting plate; the shell is fixedly provided with a first clamping plate on one side of the supporting plate, and the shell is slidably provided with a second clamping plate on the other side of the supporting plate; two ends of the supporting plate are respectively provided with gaps with the first clamping plate and the second clamping plate;

the first clamping plate and the second clamping plate are correspondingly provided with paired pole bases in a telescopic manner on the inner surfaces facing each other, the periphery of each pole base is connected with a charging cable, the end part of each pole base is provided with a probe, and each probe is connected with a monitoring cable;

the accommodating groove and the pole bases positioned at two sides of the accommodating groove form an accommodating cavity for limiting and placing the cylindrical battery along the length direction of the shell;

the accommodating grooves are abutted against the side parts of the cylindrical batteries, and the paired electrode holders are respectively abutted against the two ends of the cylindrical batteries;

the number of the accommodating cavities is at least one, the accommodating cavities are sequentially arranged along the width direction of the shell, and each accommodating cavity is correspondingly provided with a pair of pole bases.

2. The cylindrical battery test clamping device according to claim 1, wherein the pole base is of a columnar structure, and the peripheral dimension of the pole base is larger than the peripheral dimension of the pole lug of the cylindrical battery.

3. The cylindrical battery test clamping device according to claim 1, wherein the accommodating groove is of an arc-shaped structure with a concave middle part, and the groove surface size of the accommodating groove is larger than or equal to the side size of the cylindrical battery.

4. The cylindrical battery test clamping device according to claim 1, wherein the first clamping plate and the second clamping plate are correspondingly provided with screw rods in a penetrating mode, the screw rods are in threaded connection with the first clamping plate, the screw rods are in threaded connection with the second clamping plate, and a first stop piece is connected to one end, close to the first clamping plate, of the screw rods, and the end, away from the second clamping plate.

5. The cylindrical battery test clamping device according to claim 4, wherein the first clamping plate and the second clamping plate are correspondingly provided with guide rods in a penetrating mode, one end, away from the second clamping plate, of each guide rod is fixedly connected with the first clamping plate, and each guide rod is connected with the second clamping plate in a sliding mode.

6. The cylindrical battery test clamping device of claim 4, wherein the lead screw is connected with a second stop member at an end proximate the second clamping plate and facing away from the first clamping plate.

7. The cylindrical battery test fixture of claim 4, wherein said lead screw is provided with a drive member at an end proximal to said second clamping plate.

8. The cylindrical battery test clamping device according to claim 1, wherein an elastic member is arranged between the electrode base on the second clamping plate and the second clamping plate, and the electrode base on the second clamping plate slides in a telescopic manner along the thickness direction of the second clamping plate.

9. The cylindrical battery test clamping device according to claim 8, wherein a first flange and a second flange are sequentially arranged at two ends of the pole seat on the second clamping plate from front to back, the second clamping plate is located between the first flange and the second flange, the second clamping plate abuts against the second flange, the elastic piece is located between the first flange and the second clamping plate, and two ends of the elastic piece abut against the first flange and the second clamping plate respectively.

10. The cylindrical battery test clamping device according to claim 1, wherein the shell is made of steel, and an insulating layer is coated on the outer wall of the shell.