CN210404268U

CN210404268U - Electrical connection device

Info

Publication number: CN210404268U
Application number: CN201921340454.8U
Authority: CN
Inventors: 高东辉; 杨利雄
Original assignee: Dongguan Yingzhibao Electronic Technology Co ltd
Current assignee: Dongguan Yingzhibao Electronic Technology Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-24
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses an electric connecting device, through the protruding cooperation of grafting on the piece of drawing of card hole on the frame and sampling mechanism, the cooperation of the elastic component of reunion, when the position of sampling mechanism is switched to needs, overcome the resistance of elastic component, draw the piece of drawing of sampling mechanism, order about the grafting arch of drawing the piece and break away from the card hole, promote the horizontal migration of sampling mechanism to the position in appointed card hole again, then cancel and exert the power on drawing the piece, draw the piece alright automatic decline under the restoring force effect of elastic component and press tightly on the frame, the grafting arch is then inserted in the card is downthehole, make sampling mechanism lock on the frame, realized that sampling mechanism can be according to the change of the specification of battery at different positions fast switch-over, need not pull down whole electric connecting device from the equipment, also need not change clamp plate and sampling mechanism, greatly reduced intensity of labour.

Description

Electrical connection device

Technical Field

The utility model relates to a battery test equipment technical field especially relates to an electric connection device.

Background

With the rapid development of electronic products, the market of lithium batteries is gradually increasing. After the lithium battery is produced and molded, the performance of the lithium battery needs to be tested, and when the lithium battery is tested, the electric connection device is used as an intermediate electricity transmission structure to electrically connect the lithium battery and the test device, so that the current of the battery can flow to the test device, and the performance of the battery can be detected by the test through the current of the battery. Generally, the electric connection device is pressed on the tabs of the batteries through the sampling mechanisms to realize the electric connection between the electric connection device and the batteries, in order to improve the testing efficiency of the batteries, the conventional electric connection device is generally provided with a plurality of sampling mechanisms, and the plurality of sampling mechanisms are respectively pressed on the tabs of the batteries to realize the electric connection device to electrically connect the testing device with the plurality of batteries.

The existing sampling mechanism is generally fixed on a pressure plate of a frame through screws, and the distance between the sampling mechanisms cannot be changed and can only be suitable for the electric connection of batteries with one specification. When the specification of the battery to be tested is changed, in order to enable the electric connecting device to be used for the battery with the changed specification, the mode of the electric connecting device needs to be correspondingly changed, and the operation is as follows: the whole heavy electric connection device is taken down from the equipment, the pressing plate is detached from the frame, the sampling mechanism is detached from the pressing plate, the pressing plate meeting the requirements is installed on the frame after the sampling mechanism is detached, the sampling mechanism is installed on the pressing plate meeting the requirements, the distance between the sampling mechanisms meets the requirement of a battery after the specification is changed, the mode replacement process is very complicated and troublesome, and the labor intensity is very high.

SUMMERY OF THE UTILITY MODEL

Based on this, to above-mentioned problem, provide a mode and change simple operation convenient quick, electric connection device that intensity of labour is little.

In order to achieve the purpose of the utility model, the utility model adopts the following technical proposal:

an electrical connection device comprising a frame, a sampling mechanism and an electrical wire; a slide way is arranged in the frame and penetrates through the top of the frame; the top of the frame is provided with a plurality of clamping holes positioned on the periphery of the slide way, and the clamping holes positioned on the same side of the slide way are sequentially arranged at intervals along the length direction of the slide way; the electric wires are arranged in the slide way and are in one-to-one correspondence with the sampling mechanisms; one end of the wire is connected with the sampling mechanism; the number of the sampling mechanisms is at least two; the sampling mechanism comprises a probe assembly, a pull block, an elastic piece and a sliding block assembly, wherein the pull block, the elastic piece and the sliding block assembly are sleeved on the probe assembly; the pull block and the probe assembly are arranged in a sliding manner; the pulling block is positioned above the frame; the pulling block is provided with an inserting bulge for inserting the clamping hole; the elastic piece is abutted between the pull block and the top end of the probe assembly; the sliding block assembly is positioned in the slideway and is connected with the frame in a sliding manner.

The electric connection device overcomes the resistance of the elastic piece by matching the clamping hole on the frame with the inserting bulge on the pulling block of the sampling mechanism and then combining the matching of the elastic piece, when the position of the sampling mechanism needs to be switched, the pulling block of the sampling mechanism is lifted, the inserting bulge of the pulling block is driven to be separated from the clamping hole, the sampling mechanism is pushed to horizontally move to the position of the appointed clamping hole, then the force applied to the pulling block is removed, the pulling block can automatically descend and press on the frame under the restoring force action of the elastic piece, the inserting bulge is inserted into the clamping hole, so that the sampling mechanism is locked on the frame, the quick switching of the sampling mechanism at different positions is realized, the mode of the electric connection device can be quickly changed, the whole electric connection device is not required to be detached from equipment, a pressing plate and the sampling mechanism are not required to be changed, and the mode change operation is quick, simple and convenient, and also greatly reduces the labor intensity.

In one embodiment, the connector is located on one side of the frame, and the connector is connected with the other end of each wire.

In one embodiment, the pulling block is provided with a pulling hook.

In one embodiment, the probe assembly comprises an overflowing part, a sampling part and a blocking insulation module; the sampling piece is arranged in the overflowing piece and is fastened in the overflowing piece through the blocking insulation module, and the height of the top end of the sampling piece is greater than or equal to that of the overflowing piece; the blocking insulation module is positioned between the sampling piece and the overflowing piece; the pull block, the elastic piece and the sliding block component are all sleeved on the overflowing piece; the elastic piece is abutted between the pull block and the top end of the overflowing piece; the electric wire comprises an insulating layer, and a first electric conductor and a second electric conductor which are arranged in the insulating layer, wherein the first electric conductor is electrically connected with the overcurrent piece, and the second electric conductor is electrically connected with the bottom end of the sampling piece.

In one embodiment, the sliding block assembly comprises a sliding block, a reversing conductive piece and a fastening unit; the sliding block is connected with the frame in a sliding manner and can be arranged with the probe assembly in a sliding manner; the sliding block and the pulling block are both rotatably arranged with the probe assembly; the bottom side of the sliding block is provided with a movable groove; the reversing conducting piece is electrically connected with the overcurrent piece and the first conductor of the wire; the reversing conducting piece is fixed on the probe assembly through the fastening unit and comprises a reversing plate; the width of the reversing plate is smaller than that of the movable groove, the reversing plate is provided with a supporting end, and the distance from the supporting end to the probe assembly is greater than the distance from the probe assembly to the groove wall of the movable groove along the width direction of the movable groove.

In one embodiment, the commutating conductive member further includes a reinforcing plate connected to the first conductor of the wire, and the reinforcing plate is vertically connected to the abutting end of the commutating plate.

In one embodiment, the overflowing part comprises an overflowing pressure head and an overflowing sliding rod, and the overflowing pressure head is positioned above the frame and abuts against the elastic part; the top end of the overcurrent sliding rod is connected with the overcurrent pressure head, and the bottom end of the overcurrent sliding rod extends into the slideway and is connected with the first conductor of the wire; the overflowing sliding rod is sleeved with the pull block, the sliding block assembly and the elastic piece; the reversing plate is provided with a rotation stopping hole through which the overflowing sliding rod passes, and the rotation stopping hole is matched with the overflowing part.

In one embodiment, the frame comprises a first side wall, a second side wall, a first connecting block detachably connecting one corresponding end of the first side wall and the second side wall, a second connecting block detachably connecting the other opposite end of the first side wall and the second side wall, and a first rib box and a second rib plate strip arranged on the first side wall; the clamping holes are symmetrically arranged on the top of the first side wall and the top of the second side wall; the slideway is formed between the first side wall and the second side wall; the first rib plate strip and the second rib plate strip are located between the first side wall and the second side wall, a sliding groove is formed between the first rib plate strip and the second rib plate strip, and one side of the sliding block extends into the sliding groove.

In one embodiment, the plurality of clamping holes form at least two clamping hole combinations, and the clamping hole combinations are arranged in a staggered manner along the length direction of the slide way; each clamping hole combination comprises two clamping hole rows, the two clamping hole rows are symmetrically arranged on two opposite sides of the slide way, each clamping hole row comprises at least two clamping holes which are sequentially arranged at equal intervals along the length direction of the slide way, and one sampling mechanism is locked through the two clamping holes which are symmetrically arranged on two opposite sides of the slide way; the number of the clamping holes of each clamping hole row is equal, and the distance between the clamping holes of the clamping hole rows of the clamping hole assemblies is different.

In one embodiment, the wires are sequentially stacked in the depth direction of the slideway.

Drawings

Fig. 1 is a perspective view of an electrical connection device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the area encircled by circle A in FIG. 1;

FIG. 3 is a perspective view of the frame;

FIG. 4 is an enlarged view of the area encircled by circle B in FIG. 3;

FIG. 5 is a schematic view of the frame in an exploded orientation;

FIG. 6 is a schematic view of the frame in another orientation after disassembly;

FIG. 7 is a cross-sectional view of the frame;

FIG. 8 is a schematic view of the structure of the electric wire;

FIG. 9 is a schematic perspective view of the sampling mechanism;

FIG. 10 is a cross-sectional view of the sampling mechanism;

FIG. 11 is an exploded view of the sampling mechanism;

FIG. 12 is a perspective view of the flow passage member;

FIG. 13 is a cross-sectional view of a flow pass member;

fig. 14 is a schematic perspective view of an assembly composed of the sampling member, the first insulating member, the second insulating member and the third insulating member;

fig. 15 is a schematic view showing a state of an assembly body composed of a fixed slider and a commutating conductive member;

fig. 16 is a schematic view of another state of an assembly body composed of a fixed slider and a commutating conductive member;

fig. 17 is a schematic perspective view of a fast switching auxiliary workpiece.

In the figure:

10. a frame; 11. a slideway; 12. a clamping hole; 13. a first side wall; 131. a first reinforcing connecting plate; 14. A second side wall; 141. a second reinforcing connecting plate; 151. a first connection block; 152. a second connecting block; 161. a first web bar; 162. a second web bar; 163. a chute; 164. a third web bar; 17. connecting columns; 181. a first mounting block; 182. a second mounting block; 20. a connector; 30. an electric wire; 31. an insulating layer; 32. a first electrical conductor; 33. a second electrical conductor; 40. a sampling mechanism; 41. pulling the block; 411. inserting and connecting the bulges; 412. a limiting hole; 413. pulling a hook; 414. a first hook lever; 415. a second hook lever; 42. an elastic member; 50. a probe assembly; 51. an overflowing part; 52. an overcurrent pressure head; 521. a containing groove; 522. a step; 53. An overcurrent sliding rod; 531. perforating; 54. sampling; 55. sampling a pressure head; 56. a sampling rod; 57. a first insulating member; 571. a first wrapping section; 572. mounting grooves; 573. a second wrapping section; 58. a second insulating member; 59. a third insulating member; 591. a first sleeve body; 592. a second sleeve body; 593. a line entry hole; 60. fixing the sliding block; 61. a movable groove; 70. a commutation conductive member; 71. a reversing plate; 72. a rotation stopping hole; 73. a circular arc surface part; 74. a planar portion; 75. a reinforcing plate; 81. a first nut; 82. a second nut; 90. switching the auxiliary workpiece; 91. hand through holes; 92. a let position port; 93. and (4) inserting the jack.

Detailed Description

In the description of the present invention, it is to be understood that the terms "length", "width", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must be provided with a particular orientation, constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1, an electrical connection device according to an embodiment of the present invention includes a frame 10, a connector 20 disposed at one side of the frame 10, and a sampling mechanism 40 and an electrical wire 30 mounted on the frame 10; the sampling mechanisms 40 are connected with the frame 10 in a sliding mode, the number of the sampling mechanisms 40 is equal to that of the electric wires 30, the sampling mechanisms 40 and the electric wires 30 are arranged in a one-to-one correspondence mode, one ends of the electric wires 30 are connected with the sampling mechanisms 40, and the other ends of the electric wires 30 are connected with the connector 20. The sampling mechanism 40 is used for pressing on a pole lug of the battery so as to sample the current and/or voltage of the battery; the wire 30 is used to transmit a signal of the current and/or voltage of the battery sampled by the sampling mechanism 40 to the connector 20, and the connector 20 transmits the signal to an external test device. During sampling, the two electric connection devices are respectively pressed on the positive electrode and the negative electrode of the battery.

Referring to fig. 3 to 7, a slide rail 11 and a slide groove 163 communicating with the slide rail 11 are disposed in the frame 10, the slide rail 11 penetrates through the top of the frame 10, and the slide groove 163 is located on one side of the slide rail 11; the top of the frame 10 is provided with a plurality of fastening holes 12, and the fastening holes 12 on one side of the slideway 11 are sequentially arranged at intervals along the length direction of the slideway 11. Furthermore, at least two clamping hole combinations are formed by the plurality of clamping holes 12, and the clamping hole combinations are arranged in a staggered mode along the length direction of the slide 11; each clamping hole combination comprises two clamping hole rows, the two clamping hole rows are respectively positioned at two opposite sides of the slide way 11, each clamping hole row comprises at least two clamping holes 12 which are sequentially arranged at equal intervals along the length direction of the slide way 11, and one sampling mechanism 40 is locked by the two clamping holes 12 which are symmetrically arranged at two opposite sides of the slide way 11; the number of the clamping holes 12 of each clamping hole row is equal, and the distances between the clamping holes 12 of the clamping hole rows of different clamping hole 12 assemblies are different, so that the current and/or voltage of the batteries with at least two specifications can be sampled. When the specification of the battery to be tested is changed, the sampling mechanism 40 is moved to the position of the corresponding card hole 12 of the card hole combination.

In this embodiment, as shown in fig. 3 and 4, the number of the card hole combinations is four, the four card hole combinations are respectively a first card hole combination, a second card hole combination, a third card hole combination and a fourth card hole combination, each card hole row of the first card hole 12 assembly, the second card hole combination, the third card hole combination and the fourth card hole combination includes a plurality of card holes 12, as shown in fig. 4, the card holes 12 of the first card hole combination are marked with 12, the card holes 12 of the second card hole combination are marked with 10, the card holes 12 of the third card hole combination are marked with 8, and the card holes 12 of the fourth card hole combination are marked with 6.

As shown in fig. 5 and 6, the frame 10 includes a first side wall 13, a second side wall 14 disposed opposite to the first side wall 13, a first connection block 151 connecting one ends of the first side wall 13 and the second side wall 14, a second connection block 152 connecting the other ends of the first side wall 13 and the second side wall 14, a first bead strip 161 and a second bead strip 162 disposed on the first side wall 13, and a third bead strip 164 disposed on the second side wall 14; the two clamping hole rows of each clamping hole combination are symmetrically arranged on the tops of the first side wall 13 and the second side wall 14 respectively; the first side wall 13 and the second side wall 14 form a slideway 11 therebetween; the first, second and third web strips 161, 162, 164 each extend along the length of the runner 11 and are each located between the first and second side walls 13, 14; a sliding groove 163 is formed between the first rib strip 161 and the second rib strip 162, wherein the first rib strip 161 and the second rib strip 162 are used for forming the sliding groove 163 and also used for reinforcing the strength of the first side wall 13, so that the first side wall 13 is not easy to bend and deform; the third bead strip 164 serves to reinforce the strength of the second sidewall 14 so that the second sidewall 14 is less susceptible to bending deformation.

The bottom end of the first side wall 13 extends towards the direction of the second side wall 14 to form a first reinforcing connecting plate 131, the bottom end of the second side wall 14 extends towards the direction of the first side wall 13 to form a second reinforcing connecting plate 141, and the first reinforcing connecting plate 131 and the second reinforcing connecting plate 141 are arranged in an overlapping mode and detachably connected through screws.

Since the two oppositely disposed electrical connection devices are pressed on the positive tab and the negative tab of the battery during sampling, the thickness of the first sidewall 13 and the second sidewall 14 is designed to be set according to the distance between the positive tab and the negative tab of the battery, for example, if the two electrical connection devices are oppositely disposed, the second sidewalls 14 of the two frames 10 face each other, if the distance between the positive tab and the negative tab of the battery is close, the second sidewall 14 can be set to be thinner, the first sidewall 13 can be set to be thicker, if the distance between the positive tab and the negative tab of the battery is far, the second sidewall 14 can be set to be thicker, the first sidewall 13 can be set to be thinner, and because the first sidewall 13 and the second sidewall 14 are separately disposed, when the specification of the battery is changed, the first sidewall 13 and the second sidewall 14 are easier to be replaced.

In the present embodiment, the first bead strip 161 and the second bead strip 162 are both provided separately from the first side wall 13 and are detachably connected by screws. Through setting up first muscle lath 161, second muscle lath 162 all sets up with first lateral wall 13 components of a whole that can function independently, can make first muscle lath 161, second muscle lath 162 and first lateral wall 13 can machine-shaping separately, can guarantee first muscle lath 161, the straightness accuracy of second muscle lath 162 and first lateral wall 13, and because first muscle lath 161, second muscle lath 162 and first lateral wall 13 are not by a plate integrated processing shaping, can reduce the production of waste material, reduce the processing degree of difficulty, make the cost of manufacture greatly reduced of frame 10.

The third web bar 164 is provided separately from the second side wall 14 and is detachably connected by screws. Through setting up the components of a whole that can function independently setting up of third lath 164 and second lateral wall 14, rather than by a plate integrated processing shaping, can make third lath 164 and second lateral wall 14 machine-shaping separately on the one hand for the straightness accuracy of third lath 164 and second lateral wall 14 obtains guaranteeing, and on the other hand can reduce the production of waste material, reduces the processing degree of difficulty, makes the cost of manufacture greatly reduced of frame 10.

A plurality of connecting columns 17 for reinforcing the strength of the frame 10 are connected between the first side wall 13 and the second side wall 14, and the connecting columns 17 are sequentially arranged at intervals along the length direction of the slideway 11.

The frame 10 further includes a first mounting block 181 and a second mounting block 182, the first mounting block 181 and the second mounting block 182 respectively connect the first connection block 151 and the second connection block 152, and the first mounting block 181 and the second mounting block 182 are used to connect with an external device or apparatus to fix the entire electrical connection apparatus to the external device or apparatus.

The wire 30 is disposed within the slideway 11. as shown in figure 8, the wire 30 comprises an insulating layer 31 and first and second conductors 32, 33 disposed within the insulating layer 31. In order to prevent the wires 30 from being entangled with each other and facilitate the movement of the sampling mechanism 40 by pulling the wires 30, the wires 30 are stacked in the depth direction of the slide groove 163.

The number of the sampling mechanisms 40 is at least two, and the number of the sampling mechanisms 40 is less than or equal to the number of the card holes 12 of the card hole row, in the embodiment, the number of the sampling mechanisms 40 is equal to the number of the card holes 12 of the card hole row.

As shown in fig. 7, the sampling mechanism 40 includes a probe assembly 50 connected to the electric wire 30, and a pull-up block 41, an elastic member 42 and a slide block assembly sleeved on the probe assembly 50, wherein a top end of the probe assembly 50 is located above the frame 10 and is used for pressing on a tab of a battery, so that the probe assembly 50 samples current or voltage of the battery, and a bottom end of the probe assembly 50 extends into the slideway 11; the pulling block 41 and the sliding block assembly are both arranged in a sliding and rotatable manner with the probe assembly 50; the pulling block 41 is located above the frame 10 and below the top end of the probe assembly 50, two insertion protrusions 411 matched with the clamping holes 12 are arranged on the pulling block 41, and the two insertion protrusions 411 of the pulling block 41 are respectively inserted into the two clamping holes 12 symmetrically distributed on two sides of the slideway 11; the elastic member 42 is abutted between the pulling block 41 and the top end of the probe assembly 50, and is used for driving the pulling block 41 to be pressed on the top of the frame 10; a slider assembly is located within the slide way 11 and is connected to the probe assembly 50 and slidably connected to the frame 10. The probe assembly 50 can be stably locked to the frame 10 by the engagement of the insertion protrusion 411 and the latch hole 12 and the elastic restoring force of the elastic member 42. When the specification of the battery changes and the position of the sampling mechanism 40 on the frame 10 needs to be adjusted, the pull block 41 is pulled upward against the resistance of the elastic member 42, the insertion protrusion 411 of the pull block 41 is driven to leave the clamping hole 12, the locking of the sampling mechanism 40 on the frame 10 is released, then the sampling mechanism 40 is driven to move to a specified position along the slide rail 11, the force applied to the pull block 41 is removed, the pull block 41 automatically falls under the action of the recovery of the elastic member 42, and after the insertion protrusion 411 of the pull block 41 is inserted into the clamping hole 12, the sampling mechanism 40 is locked on the frame 10 again. As shown in fig. 3, when the sampling mechanism 40 is to be switched from card slot No. 12 to card slot No. 6 12, the above-described operation is performed.

As shown in fig. 11, the pulling block 41 is further provided with a pulling hook 413 for conveniently lifting and pulling the pulling block 41. In this embodiment, the number of the pulling hooks 413 is two, the two pulling hooks 413 are symmetrically disposed on the top of the pulling block 41, and the pulling hooks 413 are L-shaped. The pulling hook 413 comprises a first hooking rod 414 and a second hooking rod 415, wherein the first hooking rod 414 is vertically connected with the pulling block 41, one end of the second hooking rod 415 is connected with the first hooking rod 414, and the other end extends in a direction away from the probe assembly 50.

In the present embodiment, the elastic member 42 is preferably a spring; as shown in fig. 10, the top of the pulling block 41 is provided with a limiting hole 412 matching with the elastic member 42.

As shown in fig. 10, the probe assembly 50 includes an overcurrent piece 51, a sampling piece 54, and a blocking insulation module; the sampling piece 54 is arranged in the overflowing piece 51, the pull block 41, the elastic piece 42 and the sliding block assembly are all sleeved on the overflowing piece 51, and the top end of the overflowing piece 51 is abutted against the elastic piece 42; the height of the top end of the sampling piece 54 is more than or equal to that of the overflowing piece 51; the bottom end of the sampling piece 54 is connected with the first conductor 32 of the wire 30; the blocking insulating module is sleeved on the sampling piece 54 and used for preventing the sampling piece 54 from contacting with the overflowing piece 51.

In the present embodiment, the overflowing member 51 and the sampling member 54 are both preferably made of copper material.

As shown in fig. 10 and 12, the overflowing part 51 includes an overflowing pressure head 52 and an overflowing sliding rod 53, the overflowing pressure head 52 is located above the frame 10 and abuts against the elastic part 42, an accommodating groove 521 is arranged on the overflowing pressure head 52, and a through hole 531 communicated with the accommodating groove 521 is arranged in the overflowing sliding rod 53; the top end of the overcurrent sliding rod 53 is connected with the overcurrent pressure head 52, and the bottom end of the overcurrent sliding rod 53 extends into the slideway 11 and is connected with the first conductor 32 of the wire 30; the overflowing sliding rod 53 is sleeved with the pulling block 41, the sliding block component and the elastic component 42; the sampling member 54 includes a sampling ram 55 and a sampling rod 56 connected; the sampling pressure head 55 is positioned in the accommodating groove 521 and protrudes out of the top of the overflowing pressure head 52; the sampling rod 56 is located within the perforation 531.

As shown in fig. 10 and 14, the blocking insulation module includes a first insulation member 57, a second insulation member 58 and a third insulation member 59, the first insulation member 57 at least wraps the over-current tap 52, and the over-current tap 52 is exposed out of the first insulation member 57 and protrudes out of the top of the first insulation member 57; the second insulating part 58 and the third insulating part 59 are sleeved on the sampling rod 56; a step 522 positioned below the second insulating part 58 is arranged in the sampling rod 56, and the second insulating part 58 abuts against the step 522; the third insulating member 59 is arranged at one end of the overcurrent sliding rod 53 far away from the overcurrent pressure head 52, the third insulating member 59 comprises a first sleeve 591 and a second sleeve 592, the first sleeve 591 is located outside the overcurrent sliding rod 53 and abuts against the bottom surface of the overcurrent sliding rod 53, a wire inlet hole 593 is formed in the first sleeve 591, and the first conductor 32 of the electric wire 30 penetrates through the wire inlet hole 593 to be connected with the bottom end of the sampling rod 56; the second sheath 592 is disposed between the sampling rod 56 and the flow slide 53, and is threadedly coupled to the flow slide 53. The second insulating member 58 and the third insulating member 59 combine to fix the sampling member 54 in the overflowing member 51.

In this embodiment, the first insulator 57, the second insulator 58 and the third insulator 59 are made of plastic material.

The first insulating member 57 includes a first wrapping portion 571 and a second wrapping portion 573, the first wrapping portion 571 is provided with a mounting groove 572 for accommodating the flow-through pressure head 52, and the second wrapping portion 573 is sleeved on the sampling rod 56.

The slider assembly includes a slider 60, a commutating conductive member 70, and a fastening unit; the slide block 60 is connected with the frame 10 in a sliding way and is arranged with the probe assembly 50 in a sliding way; the sliding block 60 and the pulling block 41 are both rotatably arranged with the probe assembly 50; one side of the sliding block 60 extends into the sliding groove 163, so that the sliding block 60 is slidably connected to the frame 10; the bottom side of the sliding block 60 is provided with a movable groove 61; the commutating conductive member 70 electrically connects the overcurrent member 51 and the first conductor 32 of the electric wire 30, so that the overcurrent member 51 is electrically connected with the first conductor 32 of the electric wire 30 through the commutating conductive member 70; a commutation conductive member 70 is fixed to the probe assembly 50 by the fastening unit, the commutation conductive member 70 including a commutation plate 71; the width of the reversing plate 71 is smaller than the width of the movable groove 61, the reversing plate 71 has a supporting end, and the distance from the supporting end to the probe assembly 50 is greater than the distance from the probe assembly 50 to the groove wall of the movable groove 61 along the width direction of the movable groove 61. As shown in fig. 15, when the sampling mechanism 40 is required to be used for testing a battery, the length direction of the reversing plate 71 is arranged in the same direction as the length direction of the accommodating groove 521, and when the sampling mechanism 40 is not required to be used for testing a battery, in order to prevent the probe assembly 50 of the sampling mechanism 40 which does not need to work from pressing on the battery and affecting the testing of the battery, the probe assembly 50 is pressed first to make the reversing plate 71 away from the slider 60 without contacting the slider 60, and then the probe assembly 50 is driven to rotate until the abutting end of the reversing plate 71 contacts with the wall of the accommodating groove 521 and cannot rotate any more, and then the force applied to the probe assembly 50 is cancelled, at this time, as shown in fig. 16, because the wall of the slider 60 contacts with the abutting end of the reversing plate 71, the slider 60 generates a resistance force for preventing the reversing plate 71 from moving upwards, so that the slider 60 cannot automatically reset under the restoring force of the elastic member 42, at this point, the probe assembly 50 is in a retracted state relative to the frame 10 and cannot be pressed against the battery. For example, as shown in fig. 2, the above operation can be performed when the sampling mechanism 40 at the position of the card slot 12 No. 12 does not need to be operated. When the sampling mechanism 40 is to be reused, the probe assembly 50 can be pressed downwards, so that the reversing plate 71 is away from the sliding block 60 again, then the probe assembly 50 is driven to drive the reversing plate 71 to rotate reversely until the length direction of the reversing plate 71 is the same as the length direction of the accommodating groove 521, finally, the force applied to the probe assembly 50 is removed, at this time, the sliding block 60 does not generate resistance to the upward movement of the reversing plate 71, so that the probe assembly 50 drives the reversing plate 71 to automatically reset and press on the sliding block 60 under the restoring force of the elastic piece 42, and at this time, the probe assembly 50 is in an extending state corresponding to the frame 10 and can be used and pressed on the pole lug of the battery.

The reversing plate 71 is provided with a rotation stopping hole 72 through which the flow passing slide bar 53 passes, and the rotation stopping hole 72 is matched with the flow passing member 51 and used for preventing the reversing plate 71 from rotating relative to the flow passing slide bar 53, so that the reversing plate 71 can be well locked on the slide block 60 when the probe assembly 50 is in a telescopic state relative to the frame 10.

In the present embodiment, the rotation stop hole 72 has a circular arc surface portion 73 and a flat surface portion 74. In other embodiments, the anti-rotation apertures 72 may be triangular, square, or polygonal.

The commutating conductive member 70 further includes a reinforcing plate 75, and the reinforcing plate 75 is provided on the abutting end of the commutating plate 71. The reinforcing plate 75 is vertically connected to the abutting end of the reversing plate 71. Reinforcing plate 75 is used to increase the contact area between commutating conductor 70 and slider 60 and increase the friction between commutating conductor 70 and slider 60, so that commutating conductor 70 can be better fixed in accommodating groove 521 when probe assembly 50 is in the telescopic state relative to frame 10. In this embodiment, the reinforcing plate 75 is located below the commutating plate 71, and the reinforcing plate 75 connects the first conductors 32 of the wires 30. In other embodiments, the commutation plate 71 may be connected to the first conductor 32 of the wire 30, and the first conductor 32 of the wire 30 may be soldered to the bottom surface of the commutation plate 71.

As shown in fig. 10, the fastening unit includes a first nut 81 and a second nut 82 sleeved on the flow-passing sliding rod 53, the first nut 81 and the second nut 82 are both connected with the flow-passing sliding rod 53 by screw threads and are respectively located at two sides of the reversing plate 71, and the first nut 81 and the second nut 82 clamp the reversing plate 71 to fix the reversing plate 71 on the flow-passing sliding rod 53.

The electrical connection device further includes a switching auxiliary workpiece 90, as shown in fig. 17, one end of the switching auxiliary workpiece 90 is provided with a hand through hole 91 for a hand to pass through and hold the switching auxiliary workpiece 90, the other end of the switching auxiliary workpiece is provided with a abdicating port 92 for the pull block 41 to enter and two insertion holes 93 communicated with the abdicating port 92, the abdicating port 92 and the insertion holes 93 both penetrate through two sides of the switching auxiliary workpiece 90, the two insertion holes 93 are respectively located on two sides of the abdicating port 92, and are arranged corresponding to the second hook rods 415 of the two pull hooks 413 of the pull block 41, and the second hook rods 415 for the two pull hooks 413 are inserted to connect the switching auxiliary workpiece 90 with the pull block 41, so that the pull block 41 can be driven to ascend and translate by applying force on the switching. The design of the auxiliary workpiece 90 is switched, so that the operator can drive the pull block 41 to ascend and translate easily.

In the electrical connection device, through the matching of the card hole 12 on the frame 10 and the insertion protrusion 411 on the pull block 41 of the sampling mechanism 40, and the matching of the elastic member 42, when the position of the sampling mechanism 40 needs to be switched, the resistance of the elastic member 42 is overcome, the pull block 41 of the sampling mechanism 40 is pulled, the insertion protrusion 411 of the pull block 41 is driven to be separated from the card hole 12, the sampling mechanism 40 is pushed to horizontally move to the specified position of the card hole 12, then the force applied on the pull block 41 is cancelled, the pull block 41 can automatically descend and press on the frame 10 under the restoring force of the elastic member 42, the insertion protrusion 411 is inserted into the card hole 12, so that the sampling mechanism 40 is locked on the frame 10, the rapid switching of the sampling mechanism 40 at different positions is realized, the mode of the electrical connection device can be rapidly changed, the whole electrical connection device does not need to be detached from the device, and the pressing plate and the sampling mechanism 40 do not need to be changed, the operation is quick, simple and convenient, and the labor intensity is also greatly reduced.

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

1. An electrical connection device comprising a frame, a sampling mechanism and an electrical wire; a slide way is arranged in the frame and penetrates through the top of the frame; the top of the frame is provided with a plurality of clamping holes positioned on the periphery of the slide way, and the clamping holes positioned on the same side of the slide way are sequentially arranged at intervals along the length direction of the slide way; the electric wires are arranged in the slide way and are in one-to-one correspondence with the sampling mechanisms; one end of the wire is connected with the sampling mechanism; the number of the sampling mechanisms is at least two; the sampling mechanism comprises a probe assembly, a pull block, an elastic piece and a sliding block assembly, wherein the pull block, the elastic piece and the sliding block assembly are sleeved on the probe assembly; the pull block and the probe assembly are arranged in a sliding manner; the pulling block is positioned above the frame; the pulling block is provided with an inserting bulge for inserting the clamping hole; the elastic piece is abutted between the pull block and the top end of the probe assembly; the sliding block assembly is positioned in the slideway and is connected with the frame in a sliding manner.

2. The electrical connection device as claimed in claim 1, further comprising a connector located at one side of the frame, the connector connecting the other ends of the wires.

3. The electrical connection device as claimed in claim 1 wherein the pull block is provided with a pull hook.

4. The electrical connection device of claim 1, wherein the probe assembly comprises an overcurrent member, a sampling member, a blocking insulation module; the sampling piece is arranged in the overflowing piece and is fastened in the overflowing piece through the blocking insulation module, and the height of the top end of the sampling piece is greater than or equal to that of the overflowing piece; the blocking insulation module is positioned between the sampling piece and the overflowing piece; the pull block, the elastic piece and the sliding block component are all sleeved on the overflowing piece; the elastic piece is abutted between the pull block and the top end of the overflowing piece; the electric wire comprises an insulating layer, and a first electric conductor and a second electric conductor which are arranged in the insulating layer, wherein the first electric conductor is electrically connected with the overcurrent piece, and the second electric conductor is electrically connected with the bottom end of the sampling piece.

5. The electrical connection device as claimed in claim 4, wherein the slider assembly comprises a slider, a commutating conductive member, and a fastening unit; the sliding block is connected with the frame in a sliding manner and can be arranged with the probe assembly in a sliding manner; the sliding block and the pulling block are both rotatably arranged with the probe assembly; the bottom side of the sliding block is provided with a movable groove; the reversing conducting piece is electrically connected with the overcurrent piece and the first conductor of the wire; the reversing conducting piece is fixed on the probe assembly through the fastening unit and comprises a reversing plate; the width of the reversing plate is smaller than that of the movable groove, the reversing plate is provided with a supporting end, and the distance from the supporting end to the probe assembly is greater than the distance from the probe assembly to the groove wall of the movable groove along the width direction of the movable groove.

6. The electrical connection device of claim 5, wherein the commutating conductive member further comprises a reinforcing plate connected to the first conductor of the wire, the reinforcing plate being connected perpendicularly to the abutting end of the commutating plate.

7. The electrical connection device as claimed in claim 5, wherein the overcurrent member comprises an overcurrent pressure head and an overcurrent sliding rod, and the overcurrent pressure head is positioned above the frame and abuts against the elastic member; the top end of the overcurrent sliding rod is connected with the overcurrent pressure head, and the bottom end of the overcurrent sliding rod extends into the slideway and is connected with the first conductor of the wire; the overflowing sliding rod is sleeved with the pull block, the sliding block assembly and the elastic piece; the reversing plate is provided with a rotation stopping hole through which the overflowing sliding rod passes, and the rotation stopping hole is matched with the overflowing part.

8. The electrical connection device of claim 5, wherein the frame comprises a first side wall, a second side wall, a first connection block removably connecting corresponding ends of the first and second side walls, a second connection block removably connecting opposite ends of the first and second side walls, and first and second web strips disposed on the first side wall; the clamping holes are symmetrically arranged on the top of the first side wall and the top of the second side wall; the slideway is formed between the first side wall and the second side wall; the first rib plate strip and the second rib plate strip are located between the first side wall and the second side wall, a sliding groove is formed between the first rib plate strip and the second rib plate strip, and one side of the sliding block extends into the sliding groove.

9. The electrical connection device according to claim 1, wherein the plurality of the locking holes form at least two locking hole combinations, and the locking hole combinations are arranged in a staggered manner along the length direction of the slide way; each clamping hole combination comprises two clamping hole rows, the two clamping hole rows are symmetrically arranged on two opposite sides of the slide way, each clamping hole row comprises at least two clamping holes which are sequentially arranged at equal intervals along the length direction of the slide way, and one sampling mechanism is locked through the two clamping holes which are symmetrically arranged on two opposite sides of the slide way; the number of the clamping holes of each clamping hole row is equal, and the distance between the clamping holes of the clamping hole rows of the clamping hole assemblies is different.

10. The electrical connection device as claimed in claim 1, wherein the wires are stacked in sequence along a depth direction of the runner.