CN210465639U - Battery formation and capacity grading detection needle bed and probe assembly thereof - Google Patents

Abstract

The utility model relates to a battery formation partial volume detects needle bed and probe assembly thereof. The probe assembly is contacted with a pole of the battery and is electrically connected with a controller on the battery formation and volume-division detection needle bed. The probe assembly comprises a base used for being in contact with the pole and provided with a bearing surface. The heat dissipation assembly arranged on the bearing surface comprises a ventilation shaft and a heat dissipation piece, wherein a heat dissipation channel capable of being communicated with the outside is formed in the heat dissipation piece, the ventilation shaft is provided with a ventilation cavity and comprises an air inlet end and an air outlet end which are opposite, an air inlet hole communicated with the ventilation cavity is formed in the air inlet end, an air outlet hole communicated with the ventilation cavity and the heat dissipation channel is formed in the air outlet end, and the air outlet end penetrates through the heat dissipation channel. And the temperature probe is used for being electrically connected with the pole and the controller, is arranged on the base and is arranged in an insulating way with the base. The utility model provides a battery formation partial volume detects needle bed and probe subassembly thereof has the controllable characteristics of temperature rise.

Description

Battery formation and capacity grading detection needle bed and probe assembly thereof

Technical Field

The utility model relates to a battery preparation technical field especially relates to a battery ization becomes partial volume and detects needle bed and probe assembly thereof.

Background

In the production process of the battery, the formation and the grading of the battery are required, and the battery after the formation and the grading can be normally used. The formation means that the probe assembly is contacted with a pole of the battery to charge the battery for the first time so as to activate the battery. In the process of charging the battery, the probe assembly is easy to burn due to overhigh temperature of the pole column and the probe assembly of the battery.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a battery-based component-volume detection needle bed and a probe assembly thereof, which can control temperature rise, in order to solve the problem of high temperature rise of the conventional probe assembly.

A probe assembly in contact with a terminal of a battery and in electrical connection with a controller on a battery-forming volumetric testing needle bed, the probe assembly comprising:

the base is used for being in contact with the pole and is provided with a bearing surface;

the heat dissipation assembly is arranged on the bearing surface and comprises a ventilation shaft and a heat dissipation piece, a heat dissipation channel which can be communicated with the outside is formed on the heat dissipation piece, the ventilation shaft is provided with a ventilation cavity and comprises an air inlet end and an air outlet end which are opposite, the air inlet end is provided with an air inlet hole communicated with the ventilation cavity, the air outlet end is provided with an air outlet hole communicated with the ventilation cavity and the heat dissipation channel, and the air outlet end penetrates through the heat dissipation channel; and

and the temperature probe is used for being electrically connected with the pole and the controller, is arranged on the base and is arranged in an insulating way with the base.

In one embodiment, the air outlet end is a hemispherical structure, the hemispherical structure is in clearance fit with the heat dissipation channel, and a hemispherical surface of the hemispherical structure is abutted against the bearing surface.

In one embodiment, the heat dissipation member includes a bottom plate and a plurality of heat dissipation fins, the bottom plate is provided with a plurality of heat dissipation through holes, the plurality of heat dissipation fins are arranged at intervals along the circumferential direction of the heat dissipation through holes and surround a heat dissipation channel communicated with the heat dissipation through holes, and the air outlet end penetrates through the heat dissipation through holes and is abutted against the bearing surface.

In one embodiment, the plurality of radiating fins are all in a 7 shape, the surfaces of the plurality of radiating fins facing each other are provided with limiting notches, the side walls of the limiting notches are arranged in an enclosing manner to form a radiating channel, and the side wall of each limiting notch is overlapped with the projection part of the air outlet end on the bearing surface.

In one embodiment, the air conditioner further comprises a cold air pipe adjusting joint, and the cold air pipe adjusting joint is communicated with the air inlet hole.

In one embodiment, the base comprises a base body and a conductive anticorrosive coating, the conductive anticorrosive coating is coated on the base body, and a bearing surface is formed on the surface of the conductive anticorrosive coating.

In one embodiment, the base further comprises a conductive thickening layer, the conductive thickening layer is arranged on the surface of the conductive anticorrosion layer opposite to the bearing surface in a covering mode, and a sawtooth-shaped structure capable of being in contact with a pole is formed on the conductive thickening layer.

In one embodiment, the temperature probe further comprises an insulating sleeve, a through hole is formed in the bearing surface, the insulating sleeve is sleeved on the temperature probe, and one end of the insulating sleeve is clamped between the hole wall of the through hole and the temperature probe.

In one embodiment, the bearing device further comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are mounted on the bearing surface at intervals, and one end, protruding out of the bearing surface, of the insulating sleeve is clamped between the first clamping plate and the second clamping plate.

A battery-formed volumetric capacity detection needle bed comprising:

a controller; and

in the probe assembly, the temperature probe is electrically connected with the controller and is used for detecting the temperature value of the pole, and the controller controls the air inlet volume of the air inlet hole according to the temperature value.

According to the battery formation and capacity grading detection needle bed and the probe assembly thereof, when the probe assembly works, the base is in contact with the pole, and current flows to the pole from the base so as to charge the battery. The temperature probe is electrically connected with the pole and the controller, and can detect the temperature value of the pole and send the temperature value to the controller. The controller compares the temperature value with a preset value, when the temperature value is larger than or equal to the preset value, the controller controls the air inlet volume of the air inlet hole to increase, and air flows into the heat dissipation channel from the air outlet hole through the ventilation cavity. And because the heat dissipation channel is communicated with the outside, the wind can be diffused to the outside from the heat dissipation channel and takes away part of heat on the base. Meanwhile, the base can also radiate heat through the surface of the radiating piece, so that the radiating speed is improved. Under the action of heat transfer, the temperature of the pole is reduced, and finally the temperature of the base and the battery pole is in the temperature rise range of the formation process. Therefore, the battery formation and capacity grading detection needle bed and the probe assembly thereof have the characteristic of controllable temperature rise.

Drawings

Fig. 1 is a schematic view of an overall structure of a probe assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of the probe assembly shown in FIG. 1;

FIG. 3 is a top view of a heat spreader in the probe assembly of FIG. 1;

fig. 4 is a bottom view of a heat spreader in the probe assembly of fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides a battery-based component-volume detecting needle bed and a probe assembly 100 thereof. The battery formation volume detection needle bed comprises a controller and a probe assembly 100. The battery is placed in a formation station on the battery detection needle bed, and the probe assembly 100 is in contact with a pole of the battery and is electrically connected with a controller on the battery formation and volume-division detection needle bed.

Specifically, the number of the probe assemblies 100 is two, the two probe assemblies 100 have the same structure, one probe assembly 100 is in contact with a positive pole of a battery, and the probe assembly 100 is named as a positive probe assembly 100; another probe assembly 100 is in contact with the negative pole of the cell and the probe assembly 100 is named negative probe assembly 100. Further, the two probe assemblies 100 can charge the battery to complete the formation. A controller is electrically connected to each probe assembly 100 for controlling the operation of the probe assembly 100.

The probe assembly 100 includes a base 110, a heat sink assembly 120, and a temperature probe 130.

Referring to fig. 2, the base 110 is used for supporting and contacting with the battery post. The base 110 is generally made of a metal having a preferable conductive property. Therefore, the base 110 can be electrically connected to the pole. The base 110 has a carrying surface 111. The surface of the base 110 opposite to the bearing surface 111 contacts with the pole. In the process of forming the battery into a component, a current flows into the terminal from the surface of the base 110 opposite to the bearing surface 111 to charge the battery. While charging, the current does work to generate heat. And the temperature of the base 110 and the pole is raised.

Specifically, the base 110 may be a separate base body, and the carrying surface 111 is disposed on the base body. Alternatively, a plurality of functional layers may be coated on the seat body, and the seat body and the plurality of functional layers are compounded to form the base 110, at this time, the bearing surface 111 is disposed on the surface of the functional layer located at the outermost layer of the seat body.

In the embodiment, the base 110 includes a base body and a conductive anti-corrosion layer. The conductive anticorrosive coating is coated on the seat body, and a bearing surface 111 is formed on the surface of the conductive anticorrosive coating.

Generally, the seat body plays a supporting role. The base body is made of metal with better mechanical strength. The conductive anticorrosive layer is made of nickel with a better anticorrosive function. The nickel is coated on the surface of the seat body, so that the seat body can be prevented from reacting with chemical substances in the air, and the seat body is prevented from being corroded. Furthermore, the mechanical strength of the seat body can be maintained for a long time, so as to ensure the better supporting performance of the seat body. When the surface of the base body only covers the conductive anticorrosive layer, the surface of the conductive anticorrosive layer back to the bearing surface 111 contacts with the pole. The conducting wire connected with the external power supply is electrically connected with the conductive anticorrosive layer through the base body, and the current flows into the pole from the conductive anticorrosive layer.

In this embodiment, the base 110 further includes a conductive thickening layer. The conductive thickening layer is covered on the surface of the conductive anti-corrosion layer opposite to the bearing surface 111, and a saw-toothed structure 113 capable of contacting with the pole is formed on the conductive thickening layer.

The zigzag structure 113 contacts with the pole, so that the contact area between the base 110 and the pole can be increased. Further, the larger the contact area is, the faster the heat dissipation speed of the base 110 is. Under the action of heat transfer, the heat dissipation speed of the battery is also increased, so that the battery and the base 110 can be prevented from being burnt.

In addition, the conductive thickening layer can also effectively increase the thickness of the base 110. When the saw-toothed structure 113 on the conductive thickening layer tends to be flat due to long-term wear, the original saw-toothed structure 113 can be ground flat, and the saw-toothed structure 113 is reset on the ground surface, so as to always ensure a larger contact area between the base 110 and the pole, thereby having a better heat dissipation effect.

Generally, the coverage area of the zigzag-shaped structure 113 of the conductive thickening layer is larger than the accessible area of the battery post. Therefore, even if the base 110 moves in a small range relative to the pole, the base can be in good contact with the pole.

It should be noted that, in other embodiments, the conductive thickening layer may also completely cover the conductive anticorrosion layer, and at this time, the bearing surface 111 is disposed on the surface of the conductive thickening layer.

It should be noted that, when the base 110 is only a single seat body, the supporting surface 111 is disposed on the seat body, and the sawtooth structure 113 is disposed on a surface of the seat body opposite to the supporting surface 111.

The heat sink assembly 120 is mounted on the supporting surface 111. The heat sink assembly 120 includes a ventilation shaft 121 and a heat sink 122. The heat sink 122 is used to support the ventilation shaft 121 and dissipate heat from the base 110. Specifically, heat can be conducted between the heat dissipation member 122 and the base 110, and heat generated by the base 110 during charging of the pole can be transferred to the heat dissipation member 122 and dissipated, and at the same time, the base 110 itself can also dissipate heat.

The heat dissipating member 122 is formed with a heat dissipating passage 1221 communicating with the outside, and the ventilation shaft 121 has a ventilation cavity (not shown), and includes an air inlet end 1212 and an air outlet end 1213 opposite to each other. The air inlet end 1212 is provided with an air inlet hole 1214 communicated with the ventilation cavity, and the air outlet end 1213 is provided with an air outlet hole 1215 communicated with the ventilation cavity and the heat dissipation channel 1221. The air outlet 1213 penetrates the heat dissipation passage 1221 and abuts against the bearing surface 111.

An air cooler is provided outside the probe assembly 100. The cold air pipe of the air cooler is communicated with the air inlet hole 1214, and cold air can be input into the ventilation cavity from the air inlet hole 1214. The cool air flows in the ventilation chamber and flows out of the air outlet 1215 to enter the heat dissipation passage 1221. The heat dissipation passage 1221 is communicated with the outside, and the cold air in the heat dissipation passage 1221 carries heat and leaks to the outside, so that the heat dissipation of the heat dissipation member 122 and the base 110 can be performed, and the temperatures of the base 110 and the heat dissipation member 122 are reduced. Under the action of heat transfer, the temperature of the pole is reduced.

Further, in the present embodiment, the probe assembly 100 further includes a cold air duct adjusting joint 140. The cold air duct adjustment fitting 140 is in communication with the air inlet opening 1214.

The cold air pipe of the air cooler is communicated with the air inlet hole 1214 through the cold air pipe adjusting joint 140. On the one hand, cold air pipe adjusting joint 140 can fix the cold air pipe, and prevent that the cold air pipe from dropping from fresh air inlet 1214 and influence the ventilation cooling effect. On the other hand, the cold air pipe adjusting joint 140 can also adjust the size of the ventilation aperture of the cold air pipe according to the requirement of the heat dissipation air volume, so as to adjust the air intake at the air inlet hole 1214.

Specifically, the outlet end 1213 may be block-shaped, plate-shaped, hemispherical, or other shapes. Specifically, in the present embodiment, the air outlet end 1213 has a hemispherical structure. The hemispherical structure is in clearance fit with the heat dissipation channel 1221, and the hemispherical surface of the hemispherical structure is abutted against the bearing surface 111.

When the battery is formed, the surface of the pole post cannot be a completely horizontal plane, can be an inclined plane or can be rough due to errors. Therefore, there is a possibility that the serration structure 113 has a gap during contact with the surface of the post. The air outlet end 1213 is hemispherical, and the air outlet end 1213 is in clearance fit with the heat dissipation channel 1221, so that the air inlet end 1212 of the ventilation shaft 121 is operated to slightly rotate the air outlet end 1213. Furthermore, the position of the air outlet end 1213 abutting against the bearing surface 111 changes, so that the contact position of the serrated structure 113 and the battery post changes, and an operator can conveniently adjust the contact position of the post and the serrated structure 113 according to the surface environment of the battery post, so that the post and the serrated structure 113 are in closer contact, and the electrical connection between the base 110 and the post is realized.

Moreover, the tighter the surface contact between the base 110 and the pole is, the smaller the contact resistance between the base 110 and the pole is, and the generated heat is relatively less, so as to reduce the waste of energy.

Referring to fig. 3 and 4, in the present embodiment, the heat dissipating member 122 includes a bottom plate 1222 and a plurality of heat dissipating fins 1223. The bottom plate 1222 is provided with a heat dissipating through hole 12221, the plurality of heat dissipating fins 1223 are circumferentially spaced along the heat dissipating through hole 12221 and form a heat dissipating channel 1221 communicated with the heat dissipating through hole 12221, and the air outlet end 1213 penetrates through the heat dissipating through hole 12221 and abuts against the bearing surface 111.

The base plate 1222 is used to mount the heat sink 1223 and to transfer heat with the base 110. Specifically, the base plate 1222 may be mounted to the bearing surface 111 by pins, screws, or other fastening means. In one embodiment, the bottom plate 1222 has a threaded hole 12223 at a position opposite to the bearing surface 111, and a screw is inserted through the threaded holes 12223 of the bottom plate 1222 and the bearing surface 111 and is screwed with the threaded hole 12223. The bottom plate 1222 is formed with a heat dissipating through hole 12221.

The plurality of heat dissipation fins 1223 are arranged at intervals in the circumferential direction of the heat dissipation through-hole 12221, and surround to form the heat dissipation passage 1221. The heat dissipation passage 1221 communicates with the heat dissipation through-hole 12221. The heat dissipation passage 1221 may communicate with the outside through a gap between adjacent two of the heat dissipation fins 1223.

Specifically, the bottom plate 1222 and the heat sink 1223 each have a thermal conductivity. The base 1222 is disposed on the supporting surface 111, and can transfer heat generated by the base 110 during operation to the base 1222 and the heat sink 1223. The arrangement of the bottom plate 1222 and the plurality of fins 1223 can increase the heat dissipation area of the base 110, so that the heat dissipation speed of the base 110 is effectively increased.

Further, the air outlet end 1213 sequentially penetrates through the heat dissipation channel 1221 and the heat dissipation through hole 12221 and abuts against the bearing surface 111, and an air outlet 1215 of the air outlet end 1213 is communicated with the heat dissipation channel 1221. Therefore, the cool air from the ventilation chamber can enter into the heat dissipation passage 1221 from the air outlet 1215, and be diffused to the outside from the gaps between the plurality of heat dissipation fins 1223. During the process of spreading the cool air, a portion of the heat on the base 110, the bottom plate 1222 and the heat sink 1223 can be carried, so that the heat dissipation speed of the base 110 can be further increased. Under the action of heat transfer, the heat conduction and dissipation speed of the pole is increased, so that the base 110 and the pole can be maintained in a normal temperature rise range.

It should be noted that, in other embodiments, the heat dissipation member 122 may be composed of only the plurality of heat dissipation fins 1223. A plurality of heat dissipation fins 1223 are disposed on the carrying surface 111 at intervals. The plurality of fins 1223 surround to form a heat dissipation channel 1221, and the air outlet end 1213 penetrates through the heat dissipation channel 1221 and abuts against the bearing surface 111.

Further, in this embodiment, the plurality of fins 1223 are all in a shape of "7", the mutually facing surfaces of the plurality of fins 1223 are provided with limiting notches 12231, the side walls of the plurality of limiting notches 12231 surround to form the heat dissipation channel 1221, and the side wall of each limiting notch 12231 coincides with the projection of the air outlet end 1213 on the bearing surface 111.

Specifically, the air outlet end 1213 is accommodated in the heat dissipation channel 1221, and an edge of the air outlet end 1213 extends into the limiting notch 12231. The side wall of each limiting notch 12231 overlaps the projection of the air outlet end 1213 on the bearing surface 111, so that when the air inlet end 1212 is operated to make the air outlet end 1213 slightly rotate and rotate to a certain angle, the side wall of the limiting notch 12231 can abut against the air outlet end 1213 to prevent the air outlet end 1213 from further rotating, so that the rotation angle of the air outlet end 1213 is maintained within the range that enables the base 110 and the pole to normally work. Moreover, the side wall of the limiting notch 12231 limits the air outlet end 1213, so that the air outlet end 1213 is limited in the heat dissipation channel 1221, and the air outlet end 1213 is prevented from being separated from the heat dissipation channel 1221, which would result in that the cold air in the ventilation shaft 121 cannot smoothly circulate and enter the heat dissipation channel 1221.

The temperature probe 130 is electrically connected with the pole and the controller. The temperature probe 130 is used for detecting the temperature value of the pole and sending the temperature value to the controller. The controller controls the intake of air through the air inlet holes 1214 according to the temperature value.

Specifically, the temperature probe 130 is electrically connected to the pole, and can detect a temperature value of the pole and transmit the temperature value to the controller. The controller compares the temperature value with a preset value. When the temperature value is greater than or equal to the preset value, the controller controls the air cooler to work, so that the air inlet volume of the air inlet holes 1214 is increased. Furthermore, the cool air is diffused to the outside through the air outlet 1215 and the heat dissipation passage 1221, and can take away part of the heat on the base 110 and the heat dissipation member 122, so that the temperature of the base 110 is reduced. Under the action of heat transfer, the temperature of the pole is reduced. Therefore, the temperature of the base 110 and the terminal can be in the temperature rise range of the formation and capacity grading process, so that the battery formation and capacity grading detection needle bed and the probe assembly 100 thereof have the characteristic of controllable temperature rise.

The temperature probe 130 is installed on the base 110 and insulated from the base 110, so as to prevent the current on the base 110 from affecting the detection accuracy of the temperature probe 130.

In this embodiment, the probe assembly 100 further includes an insulative sleeve 150. The bearing surface 111 is provided with a through hole 112, the insulating sleeve 150 is sleeved on the temperature probe 130, and one end of the insulating sleeve 150 is clamped between the hole wall of the through hole 112 and the temperature probe 130.

Specifically, the through hole 112 penetrates the entire base 110. The insulating sleeve 150 is sleeved and fixed on the temperature probe 130, and the whole formed by the insulating sleeve 150 and the temperature probe 130 is inserted into the through hole 112. Specifically, to ensure that the temperature probe 130 can contact with the pole, it is necessary to ensure that the temperature probe 130 can extend to the surface of the base 110 away from the bearing surface 111 and contact with the pole when the temperature probe is installed.

The insulating sleeve 150 is used for isolating the temperature probe 130 and the base 110, and can prevent the current on the base 110 from flowing into the temperature probe 130 to cause interference on the signal of the temperature probe 130, so that the detection accuracy of the temperature probe 130 is higher. Moreover, the insulating sleeve 150 is sleeved and fixed on the temperature probe 130 in a manner that the insulating sleeve 150 and the temperature probe 130 are simply mounted, which is convenient for improving the assembly efficiency, and the structure among the base 110, the temperature probe 130 and the insulating sleeve 150 is more compact, which is convenient for realizing the miniaturization of the probe assembly 100.

In the present embodiment, the probe assembly 100 further includes a first clamping plate 161 and a second clamping plate 162. The first clamping plate 161 and the second clamping plate 162 are mounted on the bearing surface 111 at intervals. One end of the insulating sleeve 150 protruding the bearing surface 111 is clamped between the first clamping plate 161 and the second clamping plate 162. Specifically, the first clamping plate 161 and the second clamping plate 162 are disposed on the bottom plate 1222 and are mounted on the bearing surface 111 through the bottom plate 1222. The first clamping plate 161 and the second clamping plate 162 are spaced apart from the heat dissipation plate 1223. A through hole 12224 is formed in the bottom plate 1222 at a position opposite to the through hole 112, and the through hole 12224 communicates with the through hole 112. The insulating sleeve 150 and one end of the temperature probe 130 protruding from the bearing surface 111 are disposed through the through hole 12224 and clamped between the first clamping plate 161 and the second clamping plate 162.

Through setting up first splint 161 and second splint 162, synthesize base 110, the relative both ends of temperature probe 130 all can be fixed, so can prevent that temperature probe 130 from taking place the slope because one end is fixed insecure in the in-process of work, leading to the unstable condition of contact to take place between temperature probe 130 and the utmost point post.

Further, in the present embodiment, the opposing surfaces of the first clamping plate 161 and the second clamping plate 162 are recessed to form the groove 1611. The curvature of the walls of the recess 1611 matches the curvature of the insulating sleeve 150. Therefore, in the process that the insulating sleeve 150 is clamped between the first clamping plate 161 and the second clamping plate 162, the wall of the groove 1611 and the inner wall of the insulating sleeve 150 can be better attached, so that the contact area between the first clamping plate 161 and the insulating sleeve 150 and the contact area between the second clamping plate 162 and the insulating sleeve 150 can be effectively increased, and the insulating sleeve 150 and the temperature probe 130 can be more firmly installed.

In this embodiment, the probe assembly 100 further includes a voltage probe 163 electrically connected to the pole and the controller, and the voltage probe 163 is mounted on the base 110 and insulated from the base 110.

The voltage probe 163 is electrically connected with the pole and the controller, and can collect the voltage value of the pole in the formation process and send the voltage value to the controller. The controller receives the voltage values and records the voltage values, and the recorded voltage values can be used as an auxiliary reference for the battery formation result.

In the present embodiment, there are two through holes 112, two insulating sleeves 150, two through holes 12224, two first clamping plates 161, and two second clamping plates 162. One of the through holes 112, the insulating sleeve 150, the through hole 12224, the first clamp plate 161, and the second clamp plate 162 is matched with the temperature probe 130, and the other of the through holes 112, the insulating sleeve 150, the through hole 12224, the first clamp plate 161, and the second clamp plate 162 is matched with the voltage probe 163. The voltage probe 163 is matched with the through hole 112, the insulating sleeve 150, the through hole 12224, the first clamp 161 and the second clamp 162 in the same way as the temperature probe 130, the through hole 112 and the insulating sleeve 150, and therefore, the description thereof is omitted.

If the probe assembly 100 is a positive probe assembly 100, the saw-toothed structure 113 of the base 110, the temperature probe 130, and the voltage probe 163 all contact the positive post. If the probe assembly 100 is a negative probe assembly 100, the saw-toothed structure 113 of the base 110, the temperature probe 130, and the voltage probe 163 are all in contact with the negative pole.

The side wall of the base 110 is further provided with two mounting holes 114, and the two mounting holes 114 are respectively in one-to-one correspondence with and communicate with the two through holes 112. The length of the part of the insulating sleeve 150 extending into the through hole 112 is less than the depth of the through hole 112, and the temperature probe 130 and the voltage probe 163 exposed outside the insulating sleeve 150 are aligned with the mounting hole 114. The temperature probe 130 and the voltage probe 163 are electrically connected to the controller via wires extending from the two mounting holes 114 into the through hole 112, and are electrically connected to the voltage probe 163 and the temperature probe 130. By providing the mounting holes 114, the wires can be hidden by the mounting holes 114 to prevent the wires from being exposed to the outside and affecting the aesthetic appearance of the probe assembly 100. At the same time, the structure of the probe assembly 100 is made more compact and simpler.

In one embodiment, the probe assembly 100 further includes a resilient member 170 and a mounting sleeve 180. The air inlet end 1212 is sleeved with the mounting sleeve 180, two opposite ends of the elastic element 170 are respectively abutted against the air outlet end 1213 and the mounting sleeve 180, and the air outlet end 1213 is abutted against the bearing surface 111 under the action of the elastic element 170.

The elastic member 170 applies a restoring force to the ventilation shaft 121, so that the ventilation shaft 121 presses the bearing surface 111. Then, the base 110 is in contact with the pole. Therefore, under the compression of the ventilation shaft 121, compression is also generated between the base 110 and the pole, so that the contact between the base 110 and the pole is tighter. The contact resistance between the base 110 and the pole column which are in close contact is smaller, so that the part of the current for heating and doing work is less during formation, and the waste of electric energy can be effectively reduced.

In one embodiment, the elastic member 170 is a compression spring, the compression spring is sleeved on the ventilation shaft 121, and the ventilation shaft 121 guides the compression spring to prevent the compression spring from shaking, so that the compression spring has better installation stability.

In one embodiment, there are two mounting sleeves 180, and both mounting sleeves 180 are threaded sleeves. The two mounting sleeves 180 are arranged at the air inlet end 1212 at intervals and are in threaded connection with the outer wall of the ventilation shaft 121. One of the mounting sleeves 180 adjacent the outlet end 1213 abuts the resilient member 170. The other mounting sleeve 180 far away from the air outlet end 1213 and one of the mounting sleeves 180 are arranged at an interval to form a clamping portion 181, and a clamping member clamped with the clamping portion is arranged on the battery formation capacity-division detection needle bed to fix the probe assembly 100.

In one embodiment, the probe assembly 100 further includes a spacer 190, the cooling air duct adjusting joint 140 is installed on an end surface of the air inlet end 1212, an air inlet hole 1214 is opened on the end surface of the air inlet end 1212, and the spacer 190 is clamped between the cooling air duct adjusting joint 140. By providing the gasket 190, the mounting sleeve 180 can be prevented from slipping out of the ventilation shaft 121 due to looseness of the mounting sleeve 180 relative to the ventilation shaft 121, and the elastic member 170 and the mounting sleeve 180 can be stably mounted between the gasket 190 and the air outlet end 1213.

In the above-mentioned needle bed for battery formation and volume-grading detection and the probe assembly 100 thereof, when the probe assembly 100 is in operation, the base 110 is in contact with the pole, and the current flows from the base 110 to the pole to charge the battery. The temperature probe 130 is electrically connected with the pole and the controller, and the temperature probe 130 can detect the temperature value of the pole and send the temperature value to the controller. The controller compares the temperature value with a preset value, and when the temperature value is greater than or equal to the preset value, the controller controls the intake rate of the intake holes 1214 to increase, and the air flows from the outtake hole 1215 to the heat dissipation passage 1221 through the ventilation chamber. Since the heat dissipation passage 1221 is in communication with the outside, the wind can be diffused from the heat dissipation passage 1221 to the outside and take away a part of the heat on the base 110. Meanwhile, the base 110 may also dissipate heat through the surface of the heat dissipation member 122, so that the heat dissipation speed is increased. Under the action of heat transfer, the temperature of the electrode post is reduced, and finally the temperature of the base 110 and the battery electrode post is in the temperature rise range of the formation process. Therefore, the battery formation capacity-grading detection needle bed and the probe assembly 100 thereof have the characteristic of controllable temperature rise.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A probe assembly in contact with a pole of a battery and electrically connected to a controller on a needle bed for volumetric detection of battery formation, comprising:

the base is used for being in contact with the pole and is provided with a bearing surface;

the heat dissipation assembly is arranged on the bearing surface and comprises a ventilation shaft and a heat dissipation piece, a heat dissipation channel which can be communicated with the outside is formed on the heat dissipation piece, the ventilation shaft is provided with a ventilation cavity and comprises an air inlet end and an air outlet end which are opposite, the air inlet end is provided with an air inlet hole communicated with the ventilation cavity, the air outlet end is provided with an air outlet hole communicated with the ventilation cavity and the heat dissipation channel, and the air outlet end penetrates through the heat dissipation channel; and

and the temperature probe is used for being electrically connected with the pole and the controller, is arranged on the base and is arranged in an insulating way with the base.

2. The probe assembly of claim 1, wherein the air outlet end is a hemispherical structure, the hemispherical structure is in clearance fit with the heat dissipation channel, and a hemisphere of the hemispherical structure abuts against the bearing surface.

3. The probe assembly as claimed in claim 1, wherein the heat dissipating member includes a bottom plate and a plurality of heat dissipating fins, the bottom plate has a plurality of heat dissipating holes, the plurality of heat dissipating fins are spaced along a circumference of the heat dissipating holes and form a heat dissipating channel in communication with the heat dissipating holes, and the air outlet end is disposed through the heat dissipating holes and abuts against the carrying surface.

4. The probe assembly according to claim 3, wherein the plurality of heat dissipation fins are all in a 7 shape, the mutually facing surfaces of the plurality of heat dissipation fins are provided with limiting notches, the side walls of the plurality of limiting notches surround to form heat dissipation channels, and the side wall of each limiting notch coincides with the projection part of the air outlet end on the bearing surface.

5. The probe assembly of claim 1, further comprising a cold air duct adjustment fitting in communication with the air inlet aperture.

6. The probe assembly as claimed in claim 1, wherein the base includes a base body and a conductive corrosion protection layer, the conductive corrosion protection layer covers the base body, and a bearing surface is formed on a surface of the conductive corrosion protection layer.

7. The probe assembly as claimed in claim 6, wherein the base further includes a conductive thickening layer covering a surface of the conductive anti-corrosion layer opposite to the carrying surface, the conductive thickening layer having a saw-toothed structure formed thereon for contacting with a pole.

8. The probe assembly according to claim 1, further comprising an insulating sleeve, wherein a through hole is formed in the bearing surface, the insulating sleeve is sleeved on the temperature probe, and one end of the insulating sleeve is clamped between a hole wall of the through hole and the temperature probe.

9. The probe assembly of claim 8, further comprising a first clamping plate and a second clamping plate, wherein the first clamping plate and the second clamping plate are mounted on the bearing surface at intervals, and one end of the insulating sleeve protruding out of the bearing surface is clamped between the first clamping plate and the second clamping plate.

10. A battery formation capacity-grading detection needle bed is characterized by comprising:

a controller; and

the probe assembly according to any one of claims 1 to 9, wherein the temperature probe is electrically connected to the controller, the temperature probe is used for detecting a temperature value of the pole, and the controller controls an air intake of the air inlet according to the temperature value.

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