Battery cell baking temperature detection tool and battery cell baking device

Abstract

The utility model relates to battery technology field, concretely provides cell baking temperature detection frock and cell baking device, including support seat, regulator and contact type temperature detector, support seat is used for connecting tray, is equipped with first guide portion on support seat, regulator connects support seat, and the regulator includes first adjusting part, second adjusting part and third adjusting part, is equipped with second guide portion on first adjusting part, is equipped with third guide portion and fourth guide portion on third adjusting part, third guide portion and second guide portion along first direction sliding fit, fourth guide portion and first guide portion along second direction sliding fit, second adjusting part is configured as can along second direction remove relative to first adjusting part, first direction is vertical direction, and second direction is perpendicular with first direction, and the contact type temperature detector includes first detection piece, and first detection piece establishes at second adjusting part, with adjusting device synchronous movement to adjust detection position, the utility model improves the reliability and detection efficiency of temperature data effectively.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and in particular to a battery cell baking temperature detection fixture and a battery cell baking device. Background Technology

[0002] With the rapid development of the new energy industry, lithium batteries have been widely used due to their advantages such as high energy density, light weight, and large capacity. During the production and processing of lithium batteries, the cells must first be baked to remove moisture before processes such as electrolyte filling can proceed.

[0003] Conventional baking equipment typically uses heating plates in a tray to bake the battery cells on one, two, or three sides. Due to the wide variety of battery cell specifications, the layout of the heating plates in the corresponding baking equipment varies. This results in existing baking equipment often only being able to control the internal temperature of the heating plate, with a fixed detection position, making it impossible to obtain the temperature of the heating plate acting on the surface of the battery cell. Consequently, data reliability and testing efficiency cannot be guaranteed. Summary of the Invention

[0004] The battery cell baking temperature detection fixture and battery cell baking device provided in this embodiment of the invention at least solve the problems of low reliability and low detection efficiency of heating temperature data in existing baking devices. By setting a regulator to adjust the detection position of the contact temperature sensor, the reliability and detection efficiency of heating temperature data are effectively improved.

[0005] In a first aspect, this utility model provides a battery cell baking temperature detection fixture, including a support base for connecting a tray; a first guide portion is provided on the support base; an adjuster is connected to the support base; the adjuster includes a first adjusting member, a second adjusting member, and a third adjusting member; the first adjusting member is provided with a second guide portion, and the third adjusting member is provided with a third guide portion and a fourth guide portion; the third guide portion and the second guide portion are slidably engaged along a first direction, and the fourth guide portion and the first guide portion are slidably engaged along a second direction; the second adjusting member is configured to be movable relative to the first adjusting member along the second direction; wherein the first direction is a vertical direction, and the second direction is perpendicular to the first direction; and a contact temperature sensor including a first detection element; the first detection element is disposed on the second adjusting member to move synchronously with the adjuster, thereby adjusting the detection position.

[0006] In one embodiment of the present invention, the first adjusting member is provided with a fifth guide portion; the adjuster further includes a first transmission member and a second transmission member; the first transmission member is provided with a sixth guide portion, the sixth guide portion and the fifth guide portion slidingly engaging along the first direction; the second transmission member rotatably connects the first transmission member and the second adjusting member respectively, so that the second adjusting member moves synchronously with the first transmission member.

[0007] In one embodiment of the present invention, the first transmission member is provided with a first locking hole; the adjuster further includes a first locking member, the first locking member passing through the first locking hole, and the first locking member is configured to be movable relative to the first locking hole so as to abut or separate from the first adjuster.

[0008] In one embodiment of the present invention, the first adjusting member is provided with a seventh guide portion, and the second adjusting member is provided with an eighth guide portion; the adjuster further includes a guide member, the guide member being provided with a ninth guide portion and a tenth guide portion, the ninth guide portion slidingly engaging with the seventh guide portion along the second direction, and the tenth guide portion slidingly engaging with the eighth guide portion along the second direction.

[0009] In one embodiment of this utility model, the contact thermometer includes a second detection element, which is disposed on the first adjustment element.

[0010] In one embodiment of this utility model, the third guide portion is configured as a guide hole, and the second guide portion is configured as a guide rod, the guide rod passing through the guide hole; the adjuster further includes a locking sleeve and a second locking member; the locking sleeve is located on the side of the third adjusting member opposite to the first adjusting member along the first direction, and is sleeved on the guide rod; the locking sleeve is provided with a second locking hole, the second locking member passing through the second locking hole, and the second locking member is configured to be movable relative to the second locking hole to abut or separate from the guide rod.

[0011] In one embodiment of this utility model, the third adjusting member is provided with a plurality of guide holes arranged at intervals along a third direction; the guide rod is detachably connected to the guide holes; the third direction is perpendicular to the first direction and the second direction respectively.

[0012] In one embodiment of this utility model, the first guide portion is configured as a guide groove, the fourth guide portion is configured as a guide block, the guide block is disposed in the guide groove, and the guide block is provided with a third locking hole; the support base is also provided with a clearance hole communicating with the guide groove, a third locking member is disposed in the clearance hole, the third locking member passes through the third locking hole, and the third locking member is configured to be movable relative to the third locking hole so as to abut or separate from the groove wall surface of the guide groove.

[0013] In one embodiment of this utility model, a display is provided on the support base, and the display is communicatively connected to the contact thermometer. The display is used to display the temperature detected by the contact thermometer.

[0014] Secondly, this utility model also provides a battery cell baking device, including a tray for supporting the battery cell; a heater disposed on the tray; the heater for heating the battery cell; and a battery cell baking temperature detection fixture as described in any one of the above.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following advantages:

[0016] The battery cell baking temperature detection fixture and battery cell baking device of this utility model, by setting a support base and an adjuster, allows a third adjusting member to reciprocate relative to the support base along a second direction, a first adjusting member to reciprocate relative to the third adjusting member along a first direction, and a second adjusting member to reciprocate relative to the first adjusting member along a second direction. This allows the first detection member set on the second adjusting member to move synchronously with the adjuster, thereby adjusting the detection position. Based on this, the first detection member can be adapted to heaters of different sizes in the first and second directions, compatible with various battery cell models, achieving contact measurement of the baking temperature of the heater heating surface, offering high flexibility and strong functionality. Compared to existing methods of measuring the internal temperature of heaters, this effectively improves the accuracy and reliability of temperature data; compared to manual measurement, it saves labor costs, improves personnel safety, and enhances detection efficiency. Furthermore, the number of first detection members can be flexibly adjusted according to needs to achieve multi-point temperature detection, resulting in greater timeliness. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the battery cell baking temperature detection fixture in a preferred embodiment of this utility model.

[0019] Figure 2 This is one of the partial structural schematic diagrams of the regulator in a preferred embodiment of this utility model.

[0020] Figure 3 This is the second partial structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0021] Figure 4 This is the third partial structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0022] Figure 5 This is the fourth partial structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0023] Figure 6 This is one of the cross-sectional structural schematic diagrams of the regulator in a preferred embodiment of this utility model.

[0024] Figure 7 This is a schematic diagram of the guide component in a preferred embodiment of the present invention.

[0025] Figure 8 This is the fifth partial structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0026] Figure 9 This is the second cross-sectional structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0027] Figure 10 This is the sixth partial structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0028] Figure 11 This is the seventh partial structural schematic diagram of the regulator in a preferred embodiment of this utility model.

[0029] Figure 12 This is the third cross-sectional structural schematic diagram of the regulator in the preferred embodiment of this utility model.

[0030] Figure 13 This is a schematic diagram of the battery cell baking device in a preferred embodiment of the present invention.

[0031] Figure 14 This is a schematic diagram of the tray structure in a preferred embodiment of the present invention.

[0032] The above figures include the following reference numerals:

[0033] D1—First direction; D2—Second direction; D3—Third direction; 10—Support base; 11—First guide section; 111—Guide groove; 12—Allowing hole; 20—Tray; 30—Adjuster; 31—First adjusting member; 311—Second guide section; 3111—Guide rod; 312—Fifth guide section; 313—Seventh guide section; 32—Second adjusting member; 321—Eighth guide section; 33—Third adjusting member; 331—Third guide section; 3311—Guide hole; 332—Fourth guide section; 3321—Guide block; 33211—Third locking hole; 34—First transmission component; 341—Sixth guide part; 342—First locking hole; 35—Second transmission component; 36—First locking component; 37—Guide component; 371—Ninth guide part; 372—Tenth guide part; 38—Locking sleeve; 381—Second locking hole; 39—Second locking component; 40—Contact thermometer; 41—First detection component; 42—Second detection component; 50—Third locking component; 60—Display; 70—Heater; 71—First heating component; 72—Second heating component. Detailed Implementation

[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] It should be noted that the directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] It should be noted that the term "and / or" in this utility model is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Unless otherwise specified, the term "or" in this utility model is inclusive. For example, the phrase "A or B" means "A, B, or both A and B"; more specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); or A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0039] It should be noted that the "range" disclosed in this utility model is defined in the form of a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of the specific range. This type of range can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. Any lower limit can be combined with any upper limit to form an unspecified range; and any lower limit can be combined with other lower limits to form an unspecified range, just as any upper limit can be combined with any other upper limit to form an unspecified range. Furthermore, although not explicitly stated, every point or individual value between the endpoints of the range is included within that range. Therefore, each point or individual value can be used as its own lower or upper limit and combined with any other point or individual value, or with other lower or upper limits, to form an unspecified range.

[0040] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0041] In high-power applications such as electric vehicles, battery applications involve three levels: individual battery cells, battery modules, and battery packs. Battery modules are formed by electrically connecting a certain number of individual battery cells and placing them in a frame to protect them from external impacts, heat, and vibration. Battery packs represent the final state of the battery system installed in an electric vehicle. Currently, most battery packs are made by assembling a battery management system (BMS), thermal management components, and various control and protection systems onto one or more battery modules. With technological advancements, the battery module level can be omitted, meaning that battery packs can be formed directly from individual battery cells. This improvement increases the gravimetric and volumetric energy density of the battery system while significantly reducing the number of components. The battery mentioned in this invention includes either a battery module or a battery pack.

[0042] In this invention, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and this invention is not limited to these types. The battery cell may be cylindrical, flat, cuboid, or other shapes, and this invention is not limited to these shapes either. Battery cells are generally classified into three types according to their packaging method: cylindrical battery cells, cuboid / square battery cells, and pouch battery cells, and this invention is not limited to these types either.

[0043] A battery cell includes a casing, electrode assembly, and electrolyte. The electrode assembly and electrolyte are housed within the casing. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrode plates. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. The current collector without the positive active material layer protrudes beyond the current collector with the positive active material layer, serving as the positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector. The current collector without the negative active material layer protrudes beyond the current collector with the negative active material layer, serving as the negative electrode tab. The negative electrode current collector can be made of copper, and the negative electrode active material can be carbon or silicon, etc. To ensure that a large current can be passed without melting, there are multiple positive electrode tabs stacked together, and there are multiple negative electrode tabs stacked together.

[0044] There are no particular limitations on the aforementioned separator membrane; any known multi-channel separator membrane with electrochemical and chemical stability can be selected, such as a single-layer or multi-layer film of one or more of glass fiber, non-woven fabric, polyethylene, polypropylene, and polyvinylidene fluoride. The material of the separator membrane can be polypropylene (PP) or polyethylene (PE), etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; this embodiment of the invention is not limited to these.

[0045] Of course, a single battery cell may not necessarily include electrolyte.

[0046] To meet diverse power demands, a battery can comprise multiple individual cells, which can be connected in series, parallel, or a combination of both. Optionally, multiple individual cells can first be connected in series, parallel, or a combination to form a battery module, and then these battery modules can be connected in series, parallel, or a combination to form a battery. In other words, multiple individual cells can directly form a battery, or they can first be assembled into battery modules or battery packs, and then the battery modules can be assembled into a battery. The battery is then further installed in the electrical device to provide power to it.

[0047] The development of battery technology must consider multiple design factors simultaneously, such as performance parameters like energy density, cycle life, discharge capacity, and charge / discharge rate, as well as safety. Faced with different design factors and safety requirements, battery cells are constantly iterating and upgrading, and correspondingly, their size is also continuously changing.

[0048] When the dimensions of a battery cell are adjusted, the equipment used to manufacture the cell also needs to be adjusted. For example, during the cell production process, a baking device is needed to remove moisture from the inside of the cell due to processes such as coating, or moisture carried in the air, in order to maximize the cell's performance. Only cells that have been baked and passed the moisture content test can proceed to processes such as electrolyte filling.

[0049] Conventional baking equipment can generally be divided into ambient heating and contact heating. Among them, the cost, heating efficiency, and performance of the method of heating the battery cells by ambient heating are limited. Therefore, in the existing technology, the battery cells are mainly heated by a heating plate to achieve contact baking on one side, two sides, or three sides.

[0050] Due to the wide variety of battery cell specifications, the layout of the heating plates in corresponding baking devices also varies. This means that existing baking devices often only control the internal temperature of the heating plates. When the heating plate layout changes while the temperature detection position remains the same, the temperature sensor cannot obtain the temperature of the heating plate acting on the surface of the battery cell, compromising data reliability. While manual measurement can be used to adjust the temperature detection position, this is cumbersome, labor-intensive, unsafe, and inefficient.

[0051] To solve the above problems, refer to Figure 1 and Figure 2 As shown, this utility model embodiment provides a battery cell baking temperature detection fixture, which includes a support base 10, a regulator 30, and a contact thermometer 40.

[0052] The support base 10 serves as the frame of the entire tooling, used to mount the various components and connect the tray 20. Those skilled in the art can configure the structure and dimensions of the support base 10 according to actual needs. For example, the support base 10 can be configured as a rectangular structure to fit the rectangular tray 20. During actual baking, the support base 10 can be placed directly on the tray 20 so that the contact temperature sensor 40 contacts the heater 70 inside the tray 20, achieving contact temperature measurement.

[0053] The regulator 30 is connected to the support base 10 and is used to adjust the detection position of the contact thermometer 40. This ensures that the contact thermometer 40 can still contact the heater 70 and detect temperature even when the arrangement of the heater 70 is adjusted, thereby guaranteeing high detection efficiency and high reliability of the detection data. Specifically, the regulator 30 includes a first adjusting member 31, a second adjusting member 32, and a third adjusting member 33.

[0054] The support base 10 is provided with a first guide part 11. Those skilled in the art can set the specific structure of the first guide part 11 according to actual needs, such as setting the first guide part 11 as a slide rail or slide groove.

[0055] The first adjusting member 31 is provided with a second guide part 311. Those skilled in the art can set the specific structure of the second guide part 311 according to actual needs, for example, the second guide part 311 can be set as a guide rod or a slide rail.

[0056] The third adjusting member 33 is provided with a third guide portion 331 and a fourth guide portion 332. Those skilled in the art can set the specific structure of the third guide portion 331 and the fourth guide portion 332 according to actual needs. For example, the third guide portion 331 can be set as a groove or guide hole, and the fourth guide portion 332 can be set as a slider or groove.

[0057] The third guide portion 331 is slidably engaged with the second guide portion 311 along the first direction D1, and the fourth guide portion 332 is slidably engaged with the first guide portion 31 along the second direction D2. The second adjusting member 32 is configured to move relative to the first adjusting member 31 along the second direction D2. The contact thermometer 40 includes a first detection element 41, which is disposed on the second adjusting member 32. The first direction D1 is vertical, and the second direction D2 is perpendicular to the first direction D1.

[0058] Those skilled in the art can configure the sliding connection between the guide parts according to actual needs. For example, when the first guide part 11 is configured as a groove and the fourth guide part 332 is configured as a slider, the slider is placed in the groove so that the two are fitted with a clearance to achieve a sliding connection. Of course, the slider can also be adjusted to a pulley to change sliding to rolling to achieve a similar effect.

[0059] Understandably, the third adjusting member 33 can reciprocate relative to the support base 10 along the second direction D2, the first adjusting member 31 can reciprocate relative to the third adjusting member 33 along the first direction D1, and the second adjusting member 32 can reciprocate relative to the first adjusting member 31 along the second direction D2. Thus, the first adjusting member 31 acts as an adjusting reference. During cell and heater replacement, the first detection member 41 moves synchronously with the regulator 30, thereby adjusting the detection position.

[0060] Those skilled in the art can set the number of each adjusting member according to actual needs. For example, one or more third adjusting members 33 are provided on the support base 10, one or more first adjusting members 31 are provided on each third adjusting member 33, and one or more second adjusting members 32 are provided on each first adjusting member 31.

[0061] Those skilled in the art can set the number of each guide part according to actual needs, for example, each guide part can be set to one or more.

[0062] Those skilled in the art can set the number of first detection elements 41 according to actual needs. For example, one or more first detection elements 41 can be set on each second adjusting element 32 to achieve temperature measurement. Those skilled in the art can set the type of first detection element 41 according to actual needs. Preferably, the first detection element 41 is set as a thermocouple or a temperature probe.

[0063] For example, multiple groups of battery cells are arranged sequentially at intervals along the second direction D2 in the tray 20, with multiple cells in each group arranged sequentially along the third direction D3. Heating plates are placed on both sides of the battery cells along the second direction D2, thereby heating a group of battery cells by two heating plates. In addition, a temperature measurement channel is reserved between the heating plates, and the temperature is detected during the baking process using a pre-installed and adjusted battery cell baking temperature detection fixture.

[0064] Preferably, the support base 10 of the battery cell baking temperature detection fixture is provided with two third adjustment components 33, which are arranged sequentially at intervals along the second direction D2, so as to realize temperature detection of the battery cells corresponding to different temperature measurement channels.

[0065] Each third adjustment member 33 is provided with two first adjustment members 31. The two first adjustment members 31 are arranged at intervals along the third direction D3. The third direction D3 is perpendicular to the first direction D1 and the second direction D2, respectively, so as to realize temperature detection of cells in the same group but at different positions.

[0066] Each first adjusting member 31 is provided with two second adjusting members 32. The two second adjusting members 32 are respectively arranged on both sides of the first adjusting member 31 along the second direction D2, so as to realize temperature detection of different groups of cells.

[0067] Each second adjusting member 32 is provided with two first detection members 41. The two first detection members 41 are arranged alternately along the third direction D3 so that when the temperature is detected at the same point, the average value is calculated based on the two detection results to more accurately determine the temperature of the corresponding point.

[0068] After baking the current model of battery cell, the heating plate is adjusted according to the new battery cell model. For example, if the dimensions of the new battery cell along both the first direction D1 and the second direction D2 have been adjusted, a new heating plate needs to be replaced accordingly to match the dimensions of the new heating plate and the new battery cell in the first direction D1. Simultaneously, the dimensional spacing of the heating plate along the second direction D2 needs to be adjusted so that the heating plate can contact the battery cell for baking. Furthermore, the dimensions of the temperature sensing channels between the heating plates will also change.

[0069] Based on this, by adjusting the first adjusting member 31 relative to the third adjusting member 33 along the first direction D1, the first detection member 41 can be matched with the new heating plate in the first direction D1. By adjusting the second adjusting member 32 relative to the first adjusting member 31 along the second direction D2, the first detection member 41 can be matched with the new heating plate in the second direction D2.

[0070] During the adjustment of the first adjusting member 31, the positions of the two first adjusting members 31 in the first direction D1 can be adjusted simultaneously relative to the third adjusting member 33, or the position of only one of the first adjusting members 31 in the first direction D1 can be adjusted relative to the third adjusting member 33.

[0071] When multiple sets of battery cells are installed, the third adjustment member 33 can be adjusted relative to the support base 10 along the second direction D2, thereby using the same first detection member 41 to detect the temperature of the heating plate at different positions.

[0072] The battery cell baking temperature detection fixture of this utility model, by setting a support base 10 and an adjuster 30, allows the third adjusting member 33 to reciprocate relative to the support base 10 along the second direction D2, the first adjusting member 31 to reciprocate relative to the third adjusting member 33 along the first direction D1, and the second adjusting member 32 to reciprocate relative to the first adjusting member 31 along the second direction D2. This allows the first detection member 41, mounted on the second adjusting member 32, to move synchronously with the adjuster 30, thereby adjusting the detection position. Based on this, the first detection member 41 can be adapted to heaters 70 of different sizes in the first direction D1 and the second direction D2, compatible with various battery cell models, achieving contact measurement of the baking temperature of the heating surface of the heater 70, offering high flexibility and strong functionality. Compared to the existing method of measuring the internal temperature of the heater 70, it effectively improves the accuracy and reliability of temperature data; compared to manual measurement, it saves labor costs, improves personnel safety, and enhances detection efficiency. Furthermore, the number of first detection members 41 can be flexibly adjusted according to needs to achieve multi-point temperature detection, resulting in greater timeliness.

[0073] Reference Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, a fifth guide portion 312 is provided on the first adjusting member 31. Those skilled in the art can set the specific structure of the fifth guide portion 312 according to actual needs, for example, the fifth guide portion 312 can be set as a slide rail or a slide groove. Preferably, the shape of the fifth guide portion 312 in the cross section perpendicular to the first direction D1 is set as a T-shaped slide rail.

[0074] The regulator 30 also includes a first transmission member 34 and a second transmission member 35. Those skilled in the art can set the shape of the first transmission member 34 and the second transmission member 35 according to actual needs. Preferably, the first transmission member 34 is configured as a transmission seat and the second transmission member 35 is configured as a transmission rod.

[0075] The first transmission member 34 is provided with a sixth guide portion 341. Those skilled in the art can configure the specific structure of the sixth guide portion 341 according to actual needs, for example, by setting the sixth guide portion 341 as a slider or a groove. The sixth guide portion 341 and the fifth guide portion 312 slide in cooperation along the first direction D1. For example, when the fifth guide portion 312 is set as a slide rail and the fourth guide portion 332 is set as a slider, the slider is set on the slide rail, enabling a sliding connection between the two. Preferably, the sixth guide portion 341 is set as a T-shaped groove that matches the fifth guide portion 312.

[0076] The second transmission member 35 is rotatably connected to the first transmission member 34 and the second adjusting member 32 respectively. For example, the first transmission member 34 and the second adjusting member 32 are provided with rotatable connecting holes, and the second transmission member 35 is provided with a rotatable connecting pin, which is rotatably connected to the hole.

[0077] Based on this, when the first transmission member 34 reciprocates relative to the first adjustment member 31 along the first direction D1, the second transmission member 35 drives the second adjustment member 32 to move synchronously with the first transmission member 34. Of course, the second adjustment member 32 reciprocates relative to the first adjustment member 31 along the second direction D2.

[0078] In tray 20, different types of battery cells correspond to different heaters 70, and the channel dimensions between heaters 70 are also different. However, generally speaking, the size of the temperature measuring channel along the second direction D2 is relatively small, and the space is limited. Thus, through the cooperation of the first transmission member 34 and the second transmission member 35, the vertical movement of the first transmission member 34 is converted into the movement of the second adjustment member 32 along the second direction D2.

[0079] Taking a first adjusting member 31 with two second adjusting members 32 respectively located on both sides of the first adjusting member 31 along the second direction D2 as an example, when the first detection member 41 needs to be adjusted, the first transmission member 34 is driven to move relative to the first adjusting member 31 along the first direction D1. The two second transmission members 35 connected to the first transmission member 34 will rotate accordingly, thereby driving the corresponding second adjusting member 32 and the first detection member 41 to move along the second direction D2.

[0080] For example, the first transmission member 34 rises relative to the first adjustment member 31, the second transmission member 35 rotates, and drives the second adjustment member 32 and the first detection member 41 to move closer to the first adjustment member 31; the first transmission member 34 falls relative to the first adjustment member 31, the second transmission member 35 rotates, and drives the second adjustment member 32 and the first detection member 41 to move away from the first adjustment member 31.

[0081] Compared to using a separate driver to move the second adjusting member 32 along the second direction D2, this structure is relatively compact and has a higher space utilization rate. Especially when multiple second adjusting members 32 are set on a single first adjusting member 31, the rotational transmission structure of the second transmission member 35 can be used to enable one first transmission member 34 to drive the movement of multiple second transmission members 35 and second adjusting members 32, saving space, facilitating drive debugging, and improving work efficiency.

[0082] Furthermore, refer to Figure 6 As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, the first transmission member 34 is provided with a first locking hole 342, which penetrates the first transmission member 34 and connects to the outside and the first adjustment member 31.

[0083] The regulator 30 also includes a first locking member 36 extending through a first locking hole 342, and the first locking member 36 is configured to be movable relative to the first locking hole 342 to abut or disengage from the first regulator 31.

[0084] Preferably, the first locking hole 342 is a threaded hole, and the first locking element 36 is a bolt, with the two connected by threads. Alternatively, the first locking hole 342 is a through hole, and the first locking element 36 is a bolt with double nuts installed on it. This structure facilitates adjustment and effectively achieves locking and fixing.

[0085] When it is necessary to move the first transmission member 34 relative to the first adjusting member 31, the first locking member 36 is adjusted to separate it from the first adjusting member 31. After the force of the first locking member 36 is lost, the first transmission member 34 can be moved relative to the first adjusting member 31, thereby adjusting the position of the second adjusting member 32 and the first detection member 41.

[0086] After adjustment, the first locking member 36 is adjusted to abut against the first adjusting member 31. Under the force of the first locking member 36, the first transmission member 34 is locked and cannot move relative to the first adjusting member 31. This ensures good contact between the first detection member 41 and the heater 70 during the baking process of the battery cell, achieving fixed-point temperature detection.

[0087] In some embodiments of the battery cell baking temperature detection fixture described in this utility model, the first adjusting member 31 is provided with a seventh guide portion 313. Those skilled in the art can configure the specific structure of the seventh guide portion 313 according to actual needs, for example, the seventh guide portion 313 can be configured as a guide rail or guide groove 111. The second adjusting member 32 is provided with an eighth guide portion 321. Those skilled in the art can configure the specific structure of the eighth guide portion 321 according to actual needs, for example, the eighth guide portion 321 can be configured as a guide rail or guide groove 111.

[0088] Based on this, the seventh guide portion 313 and the eighth guide portion 321 can be configured to slide in the second direction D2 to provide guidance for the movement of the second adjusting member 32 and to provide constraints for the transmission of the first transmission member 34 and the second transmission member 35.

[0089] Furthermore, refer to Figure 7 As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, the regulator 30 further includes a guide member 37, which cooperates with the first regulator 31 and the second regulator 32 to achieve guidance. Specifically, the guide member 37 is provided with a ninth guide portion 371 and a tenth guide portion 372. The ninth guide portion 371 and the seventh guide portion 313 are slidably engaged along the second direction D2, and the tenth guide portion 372 and the eighth guide portion 321 are slidably engaged along the second direction D2.

[0090] Preferably, the ninth guide portion 371 and the tenth guide portion 372 are offset along the first direction D1, and correspondingly, the seventh guide portion 313 and the eighth guide portion 321 are also offset along the first direction D1.

[0091] Those skilled in the art can set specific structures for the ninth guide portion 371 and the tenth guide portion 372 according to actual needs, for example, simultaneously setting the ninth guide portion 371 and the tenth guide portion 372 as guide grooves 111 or guide rails.

[0092] For example, the seventh guide section 313 and the eighth guide section 321 are both configured as T-shaped guide rails, while the ninth guide section 371 and the tenth guide section 372 are both configured as T-shaped guide grooves 111. In this way, the segmented guide structure of the guide member 37 achieves the extension of range, which can effectively expand the movable range of the second adjustment member 32 in the second direction D2, thereby adapting to more types of trays 20.

[0093] Reference Figure 7As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, the contact temperature sensor 40 includes a second detection element 42, which is disposed on the first adjusting element 31. Preferably, the second detection element 42 is disposed on the side of the first adjusting element 31 along the first direction D1 near the tray 20, and the second detection element 42 is used to detect the temperature of the heating base plate at the bottom of the tray 20. In this way, when the position of the first adjusting element 31 in the first direction D1 is adjusted relative to the third adjusting element 33, the position of the second detection element 42 can be adjusted simultaneously, realizing the adaptation to heating base plates of different thicknesses in the tray 20 and improving the reliability of temperature detection data.

[0094] Those skilled in the art can set the type of the second detection element 42 according to actual needs. Preferably, the second detection element 42 is set as a thermocouple or a temperature probe.

[0095] Those skilled in the art can set the number of second detection elements 42 according to actual needs. For example, one or more second detection elements 42 can be provided on the first adjusting member 31. Preferably, each first adjusting member 31 is provided with two second detection elements 42, and the two second detection elements 42 are arranged alternately along the second direction D2.

[0096] Furthermore, refer to Figure 2 , Figure 8 and Figure 9 As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, the third guide part 331 is configured as a guide hole 3311, and the second guide part 311 is configured as a guide rod 3111. The guide rod 3111 passes through the guide hole 3311, and the two are fitted with a clearance, which can effectively accommodate trays 20 and heaters 70 of different heights, ensuring that the first detection element 41 or / and the second detection element 42 can contact the corresponding part of the heater 70 and realize temperature measurement.

[0097] The regulator 30 also includes a locking sleeve 38 and a second locking member 39. The locking sleeve 38 is located on the side of the third regulator 33 opposite to the first regulator 31 along the first direction D1, and is sleeved on the guide rod 3111. The two are fitted with a clearance, thereby realizing the movement limit of the first regulator 31 along the first direction D1.

[0098] The locking sleeve 38 is provided with a second locking hole 381, which penetrates the locking sleeve 38 and connects to the outside and the guide rod 3111.

[0099] The second locking member 39 passes through the second locking hole 381, and the second locking member 39 is configured to be movable relative to the second locking hole 381 to abut or separate from the guide rod 3111.

[0100] Preferably, the second locking hole 381 is a threaded hole, and the second locking element 39 is a bolt, with the two connected by threads. Alternatively, the second locking hole 381 can be a through hole, and the second locking element 39 can be a bolt with double nuts on it. This structure facilitates adjustment and effectively achieves locking and fixing.

[0101] When it is necessary to move the first adjusting member 31 relative to the third adjusting member 33, the second locking member 39 is adjusted to separate it from the guide rod 3111. After the force of the second locking member 39 is lost, the locking sleeve 38 can move relative to the guide rod 3111. At this time, the first adjusting member 31 can be moved relative to the third adjusting member 33, thereby adjusting the positions of the first detection member 41 and the second detection member 42.

[0102] After adjustment, the second locking member 39 is adjusted to abut against the guide rod 3111. Under the force of the second locking member 39, the guide rod 3111 and the locking sleeve 38 are locked and cannot move relative to each other. Under the limitation of the locking sleeve 38, the first adjusting member 31 and the third adjusting member 33 are relatively fixed, thereby ensuring that the first detection member 41 and the second detection member 42 can make good contact with the heater 70 during the baking process of the battery cell, and realizing the temperature detection at a fixed point.

[0103] Furthermore, refer to Figure 1 and Figure 10 As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, the third adjusting member 33 is provided with a plurality of guide holes 3311 arranged sequentially at intervals along the third direction D3. Those skilled in the art can set the number of guide holes 3311 according to actual needs. For example, each third adjusting member 33 is provided with four guide holes 3311, and the distance between two guide holes 3311 is equal along the third direction D3.

[0104] The guide rod 3111 is detachably connected to the guide hole 3311. For example, with the locking sleeve 38 and the second locking member 39 installed, the second locking member 39 is adjusted to separate from the guide rod 3111. After the force of the second locking member 39 is removed, the locking sleeve 38 can move relative to the guide rod 3111. At this time, the locking sleeve 38 is removed from the guide rod 3111. After the limiting effect of the locking sleeve 38 is removed, the guide rod 3111 can be removed from the guide hole 3311 and installed into other guide holes 3311 as needed. After installation, the locking sleeve 38 is put back on, and the second locking member 39 is adjusted to abut against the guide rod 3111. Under the force of the second locking member 39, the guide rod 3111 and the locking sleeve 38 are locked, completing the adjustment.

[0105] In this way, a limited number of contact thermometers 40 can be used to measure the temperature of the heater 70 at different points on the third direction D3, providing greater flexibility. Additionally, by using the guide hole 3311 to additionally install new first adjusting members 31, second adjusting members 32, and contact thermometers 40, temperature measurement can be achieved at even more points, thereby ensuring the diversity and reliability of temperature detection data.

[0106] Furthermore, refer to Figure 11 and Figure 12 As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, the first guide part 11 is configured as a guide groove 111, and the fourth guide part 332 is configured as a guide block 3321. The guide block 3321 is disposed in the guide groove 111, and the two are slidably connected.

[0107] The guide block 3321 is provided with a third locking hole 33211, and the support base 10 is also provided with a clearance hole 12 that connects to the guide groove 111. The third locking hole 33211 connects to the groove wall of the guide groove 111 and the clearance hole 12. A third locking member 50 is provided in the clearance hole 12. The third locking member 50 passes through the third locking hole 33211 and is configured to be movable relative to the third locking hole 33211 so as to abut or separate from the groove wall of the guide groove 111.

[0108] Preferably, the third locking hole 33211 is a threaded hole, and the third fastener is a bolt, with the two connected by threads. Alternatively, the third locking hole 33211 is a through hole, and the third locking element 50 is a bolt with double nuts installed on it.

[0109] When it is necessary to move the third adjusting member 33 relative to the support base 10, adjust the third locking member 50 to separate it from the groove wall of the guide groove 111. After the force of the third locking member 50 is removed, the guide block 3321 can move relative to the guide groove 111. At this time, the third adjusting member 33 can be moved relative to the support base 10, thereby adjusting the positions of the first detection member 41 and the second detection member 42.

[0110] After adjustment, the third locking member 50 is adjusted to abut against the wall of the guide groove 111. Under the force of the third locking member 50, the guide block 3321 is locked and cannot move relative to the guide groove 111. Correspondingly, the third adjusting member 33 and the support base 10 are relatively fixed, thereby ensuring that the first detection member 41 and the second detection member 42 can make good contact with the heater 70 during the baking process of the battery cell, and realizing the temperature detection at a fixed point.

[0111] In this way, the movement and adjustment of the third adjusting member 33 can be easily realized, and it is also convenient to add or remove the third adjusting member 33 to adapt to different numbers of heaters 70.

[0112] Reference Figure 1As shown, in some embodiments of the battery cell baking temperature detection fixture of this utility model, a display 60 is provided on the support base 10. The display 60 is communicatively connected to the contact thermometer 40. The display 60 is used to display the temperature detected by the contact thermometer 40, so that the operator can more intuitively understand the current temperature of the heater 70 and take corresponding actions. Exemplarily, the communication connection can be achieved through wired or wireless means. How to specifically implement data transmission and convert the signal into a digital display are all prior art and will not be described in detail here.

[0113] Reference Figure 13 As shown, this embodiment of the present invention also provides a battery cell baking device, including a tray 20, a heater 70, and a battery cell baking temperature detection fixture as described in any of the above embodiments. The tray 20 is used to support the battery cell, and the heater 70 is disposed on the tray 20 for heating the battery cell. Since the battery cell baking device of the present invention includes the battery cell baking temperature detection fixture described in the above embodiments, it also possesses all the beneficial effects described herein, and will not be repeated here.

[0114] Preferred, refer to Figure 14 As shown, the battery cell baking device of this utility model includes a heater 70 comprising a first heating element 71 and a second heating element 72. Preferably, both the first heating element 71 and the second heating element 72 are configured as heating plates.

[0115] The first heating element 71 is disposed on the bottom surface of the tray 20 for baking the bottom surface of the battery cell. Multiple second heating elements 72 are disposed at intervals along the second direction D2, thereby baking the two sides of the battery cell along the second direction D2. During the baking process, the temperature of the second heating elements 72 is monitored in real time by the first detection element 41, and the temperature of the first heating element 71 is monitored in real time by the second detection element 42.

[0116] Preferably, the second heating element 72 is detachable to accommodate battery cells of different heights. Correspondingly, the position of the first adjusting element 31 relative to the third adjusting element 33 is adjusted by means of the locking sleeve 38 and the second locking element 39 to adjust the detection position of the first detection element 41 along the first direction D1.

[0117] Preferably, the spacing between the second heating elements 72 along the second direction D2 is adjustable to accommodate battery cells of different sizes. Accordingly, temperature detection is achieved by adjusting the position of the third adjusting element 33 and / or the second adjusting element 32 so that the first detection element 41 contacts the second heating element 72.

[0118] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0119] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0120] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixture for detecting the baking temperature of battery cells, characterized in that, include: A support base (10) is used to connect a tray (20); a first guide portion (11) is provided on the support base (10). An adjuster (30) is connected to the support base (10); the adjuster (30) includes a first adjusting member (31), a second adjusting member (32), and a third adjusting member (33); the first adjusting member (31) is provided with a second guide portion (311), and the third adjusting member (33) is provided with a third guide portion (331) and a fourth guide portion (332); the third guide portion (331) and the second guide portion (311) are slidably engaged along a first direction (D1), and the fourth guide portion (332) and the first guide portion (11) are slidably engaged along a second direction (D2); the second adjusting member (32) is configured to move relative to the first adjusting member (31) along the second direction (D2); wherein, the first direction (D1) is a vertical direction, and the second direction (D2) is perpendicular to the first direction (D1); and, The contact thermometer (40) includes a first detection element (41); the first detection element (41) is disposed on the second adjustment element (32) to move synchronously with the adjustment element (30) to adjust the detection position.

2. The cell baking temperature detection fixture according to claim 1, characterized in that: The first adjusting member (31) is provided with a fifth guide part (312); The regulator (30) further includes a first transmission member (34) and a second transmission member (35); the first transmission member (34) is provided with a sixth guide portion (341), and the sixth guide portion (341) and the fifth guide portion (312) slide in cooperation along the first direction (D1); the second transmission member (35) rotatably connects the first transmission member (34) and the second regulator (32) respectively, so that the second regulator (32) moves synchronously with the first transmission member (34).

3. The cell baking temperature detection fixture according to claim 2, characterized in that: The first transmission component (34) is provided with a first locking hole (342); The adjuster (30) further includes a first locking member (36) extending through the first locking hole (342) and configured to be movable relative to the first locking hole (342) to abut or separate from the first adjuster (31).

4. The cell baking temperature detection fixture according to claim 1, characterized in that: The first adjusting member (31) is provided with a seventh guide portion (313), and the second adjusting member (32) is provided with an eighth guide portion (321). The regulator (30) further includes a guide (37), on which a ninth guide portion (371) and a tenth guide portion (372) are provided. The ninth guide portion (371) and the seventh guide portion (313) slide in cooperation along the second direction (D2), and the tenth guide portion (372) and the eighth guide portion (321) slide in cooperation along the second direction (D2).

5. The cell baking temperature detection fixture according to any one of claims 1 to 4, characterized in that: The contact thermometer (40) includes a second detection element (42), which is disposed on the first adjustment element (31).

6. The cell baking temperature detection fixture according to claim 5, characterized in that: The third guide part (331) is configured as a guide hole (3311), and the second guide part (311) is configured as a guide rod (3111), with the guide rod (3111) passing through the guide hole (3311). The regulator (30) further includes a locking sleeve (38) and a second locking member (39); the locking sleeve (38) is located on the side of the third regulator (33) away from the first regulator (31) along the first direction (D1) and is sleeved on the guide rod (3111); the locking sleeve (38) is provided with a second locking hole (381), the second locking member (39) passes through the second locking hole (381), and the second locking member (39) is configured to be movable relative to the second locking hole (381) to abut or separate from the guide rod (3111).

7. The cell baking temperature detection fixture according to claim 6, characterized in that: The third adjusting member (33) is provided with a plurality of guide holes (3311) arranged sequentially at intervals along the third direction (D3); the guide rod (3111) is detachably connected to the guide holes (3311); the third direction (D3) is perpendicular to the first direction (D1) and the second direction (D2) respectively.

8. The cell baking temperature detection fixture according to claim 7, characterized in that: The first guide part (11) is configured as a guide groove (111), and the fourth guide part (332) is configured as a guide block (3321). The guide block (3321) is disposed in the guide groove (111), and a third locking hole (33211) is provided on the guide block (3321). The support base (10) is also provided with a clearance hole (12) that communicates with the guide groove (111). A third locking member (50) is provided in the clearance hole (12). The third locking member (50) passes through the third locking hole (33211) and is configured to be movable relative to the third locking hole (33211) so as to abut or separate from the groove wall of the guide groove (111).

9. The cell baking temperature detection fixture according to claim 1, characterized in that: The support base (10) is provided with a display (60), which is communicatively connected to the contact thermometer (40). The display (60) is used to display the temperature detected by the contact thermometer (40).

10. A battery cell baking apparatus, characterized in that, include: Tray (20) is used to support the battery cells; A heater (70) is disposed on the tray (20); the heater (70) is used to heat the battery cell; and, The cell baking temperature detection fixture as described in any one of claims 1 to 9.

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