A lithium battery charging connection method

Abstract

The present invention discloses a lithium battery charging connection method, which uses a lithium battery charging connector, including a socket body and a plug body that is plugged in and out of the socket body; a lock hole assembly is arranged above the socket body, and the lock hole assembly includes a lock hole chamber, a lock hole push rod, and a movable claw assembly; a lock body assembly is arranged above the plug body, and the lock body assembly includes a rotating lock core, a sliding lock core, and an unlocking sleeve; the plugging and unplugging method comprises the following steps: step 1, inserting the locking plug body; step 2, unlocking the movable claw assembly to cause it to lose the locking position; step 3, pulling out the plug body.

Description

Technical Field

[0001] The present application relates to the technical field of battery charging, and in particular to a lithium battery charging connection method. Background Art

[0002] With the development of new energy batteries, new energy vehicles and other electrical appliances represented by lithium batteries have been increasingly widely used. In the technological process from lead-acid batteries to lithium batteries, thanks to the continuous improvement of battery energy density, more and more energy can be stored and released within a smaller and smaller battery volume framework.

[0003] As the capacity of batteries continues to increase, the technical requirements for charging circuits are becoming more stringent within the limited charging time. For example, the charging voltage and charging current are getting higher and higher. Therefore, during the charging process, it is necessary to ensure that the lithium battery charging connector must always remain in a fixed position to avoid slipping and causing leakage.

[0004] Taking a two-wheeled or three-wheeled low-speed electric vehicle as an example, the plug and socket of the prior art are made of plastic material, and the friction damping is enhanced by a certain degree of interference fit. However, although the friction can greatly increase the difficulty of pulling out the plug and thus achieve stable plugging of the plug, it also makes it difficult to insert the plug. Therefore, it is necessary to design a lithium battery charging connection method that can be easily plugged in and fixed, and can also prevent accidental disengagement. Summary of the invention

[0005] A lithium battery charging connection method,

[0006] The lithium battery charging connector comprises a socket body and a plug body that is pluggable with the socket body;

[0007] A lock hole assembly is provided above the socket body;

[0008] A lock body assembly is provided above the plug body;

[0009] The lock hole assembly and the lock body assembly are locked together by plugging.

[0010] Furthermore, the lock hole assembly includes a lock hole chamber disposed above the front end surface of the socket body, a lock hole push rod formed at the rear end of the lock hole chamber, and a movable claw assembly formed at the front end of the right wall of the lock hole chamber.

[0011] Further, the lock hole chamber includes a rectangular front cavity located above the front end surface of the socket body and a circular rear cavity formed behind the rectangular front cavity;

[0012] The lock hole push rod includes a central cylinder arranged at the rear end of the circular rear cavity, a transverse side hole formed at the rear end of the right side of the central cylinder, a limit blind hole formed at the front end of the transverse side hole, a driving rack slidably inserted in the transverse side hole, a limit plug formed at the front end of the driving rack and inserted into the limit blind hole, and a top pressure spring arranged in the transverse side hole and located on the left side of the driving rack;

[0013] The movable claw assembly comprises:

[0014] The transmission wheel set comprises a wheel set chamber formed at the rear end of the transverse side hole, a driven gear rotatably arranged in the wheel set chamber and meshing with the driving rack, and a first bevel gear concentrically arranged on the driven gear;

[0015] The transmission shaft assembly comprises a transmission shaft hole arranged on the right side of the wheel assembly chamber, a transmission mandrel rotatably arranged in the transmission shaft hole, a follower bevel gear formed on the left side of the transmission mandrel and meshing with the first bevel gear, and a driving gear formed on the right side of the transmission mandrel;

[0016] The sliding lock head comprises a front slideway arranged in front of the right side of the transmission shaft hole, a front side hole arranged on the left side of the front end of the front slideway and connected to the rectangular front cavity, a sliding rack slidably arranged in the front slideway, and a connecting rod formed on the left side of the sliding rack and passing through the front side hole;

[0017] The one-way claw is located on the left side of the connecting rod.

[0018] Furthermore, the one-way claw includes a claw base, a spiral inclined surface arranged in front of the claw base and spirally extending in the downward and rearward direction, a one-way threaded groove arranged in front of the left side of the claw base and flush with the spiral inclined surface, a lock blind hole formed in the front-to-back direction behind the upper end of the one-way threaded groove, a compression spring core shaft formed in the lock blind hole, and a lock compression spring wound around the compression spring core shaft 34e. The one-way claw also includes a lock body, a core shaft jack formed at the rear end of the lock body and plugged into the compression spring core shaft, and a one-way inclined surface formed at the front end of the lock body and inclined in the downward and front direction.

[0019] Furthermore, a rack slope inclined toward the right rear direction is formed on the front half of the right side of the driving rack, and a front damping member is formed on the rear half of the right side of the driving rack.

[0020] As a further implementation scheme, an embodiment of the lock body assembly is given below:

[0021] The lock body assembly comprises:

[0022] Rotate the lock core to insert it into the lock hole cavity and lock it with the moving claw assembly;

[0023] A sliding lock core is slidably inserted in the rotating lock core, and the sliding lock core moves forward relative to the rotating lock core and drives the rotating lock core to rotate;

[0024] The unlocking sleeve is arranged behind the rotating lock cylinder and is used to drive the moving claw assembly to contract and then unlock the locking cooperation of the moving claw assembly to the rotating lock cylinder.

[0025] As a further implementation:

[0026] The rotary lock cylinder comprises:

[0027] The fixed mandrel comprises a mandrel base arranged in front of the upper end of the plug body, a mandrel body formed at the rear end of the mandrel base and plugged into the rectangular front cavity, a built-in circular shaft formed at the rear end of the mandrel body, a limiting disc formed at the rear end of the built-in circular shaft, an arc-shaped side hole formed at the front end of the limiting disc and arranged along the circumferential side wall of the limiting disc, and a rectangular insertion channel formed in the built-in circular shaft along the front-to-back direction;

[0028] The driven rotary drum comprises a rotating inner drum rotatably arranged on the built-in circular shaft, a widened circular cavity formed in the rear half of the inner cavity of the rotating inner drum and matched with the limiting circular disc, a side hole plug block formed in the front half of the inner cavity of the widened circular cavity and plugged and matched with the arc-shaped side hole, a torsion spring sleeve formed at the rear end of the widened circular cavity, and a reset torsion spring wound around the outer wall of the torsion spring sleeve, one end of the reset torsion spring is connected to the limiting circular disc and the other end is connected to the widened circular cavity, and the driven rotary drum also comprises a front connecting ring arranged at the front end of the outer wall of the rotating inner drum, a rotating outer drum formed at the rear end of the outer wall of the front connecting ring, a rotating lock formed on the left side of the outer wall of the rotating outer drum and plugged and matched with the one-way thread groove, a driven thread groove formed on the inner wall of the rotating outer drum, and a reset compression spring wound between the rotating inner drum and the rotating outer drum;

[0029] The sliding lock core includes a driving cylinder slidably sleeved between the rotating inner cylinder and the rotating outer cylinder and located behind the reset compression spring, a rectangular plug rod formed on the rear end surface of the driving cylinder, the rectangular plug rod passes through the torsion spring sleeve and is plugged into the rectangular insertion channel, and the sliding lock core also includes a driving plug formed on the outer wall of the driving cylinder and slidably inserted in the driven thread groove;

[0030] The unlocking sleeve includes a rear annular groove formed on the rear half of the outer wall of the rotating inner cylinder, an annular groove retaining ring formed on the rear end of the rear annular groove, a retaining sleeve rotatably sleeved on the rear annular groove, a spring retaining ring formed on the front half of the inner wall of the retaining sleeve and sleeved in the rear annular groove, and an unlocking compression spring wound in the rear annular groove. The unlocking compression spring is located between the annular groove retaining ring and the spring retaining ring. An elastic plug rod is also provided at the rear right side of the inner wall of the retaining sleeve

[0031] The lithium battery charging connection method comprises the following steps:

[0032] Step 1, insert the locking plug body:

[0033] Step 2, unlock the moving claw assembly so that it loses its locked position:

[0034] Step 3: Pull out the plug body.

[0035] As a further implementation:

[0036] Step 1:

[0037] Step 1.1, initial insertion:

[0038] Align the socket body and the lock hole assembly with the plug body and the lock body assembly, and then push the lock body assembly backwards to insert it into the lock hole assembly;

[0039] The rotating lock core, the sliding lock core, and the unlocking sleeve move backward along the circular rear cavity until the sliding lock core is stopped by the central cylinder;

[0040] Step 1.2, turn the lock head to rotate backwards:

[0041] Continue to push the plug body and the lock body assembly backward, the rotating lock core and the unlocking sleeve overcome the damping of the reset compression spring and move backward relative to the sliding lock core, the lock hole push rod, and the lock hole chamber.

[0042] at the same time,

[0043] The driven thread groove is rotated by the driving plug, and then drives the rotating inner cylinder, the widened circular cavity, the side hole plug, the front connecting ring, the rotating outer cylinder, and the rotating lock head to overcome the torsion of the reset torsion spring and rotate;

[0044] That is, the rotating lock head rotates and steps backward along the spiral track;

[0045] Step 1.3, the rotating lock is locked by the one-way claw:

[0046] Continue to push the plug body and the lock body assembly backward, the rotating lock head rotates backward step by step until it is inserted into the one-way thread groove, and drives the lock head body and the spindle insertion hole to retreat along the compression spring spindle by squeezing the one-way inclined surface; the rotating lock head continues to rotate backward step by step until it slides over the lock head body, at which time the lock head body and the spindle insertion hole pop out and reset under the action of the lock head compression spring;

[0047] After stopping, the plug body and the lock body assembly are pushed back, and the reset compression spring pushes the rotating lock core and the unlocking sleeve forward, but the rotating lock head is stuck by the lock head body and cannot rotate forward.

[0048] Step 2, an embodiment of unlocking the movable claw assembly so that it loses the locking position:

[0049] Continue to push the lock body assembly backward, so that the rotary lock core and the unlocking sleeve continue to retreat, and the rotary lock head slides out of the one-way thread groove;

[0050] Then,

[0051] The unlocking sleeve triggers the moving claw assembly to lose its locked position:

[0052] The elastic insertion rod and the rear damping member squeeze the rack inclined surface, thereby pushing the driving rack and the front damping member to move leftward to the retracted position until the rear damping member is inserted behind the front damping member and locked;

[0053] The driving rack drives the driven gear and the first bevel gear to rotate, the first bevel gear drives the second bevel gear, the transmission spindle, and the driving gear to rotate, and the driving gear drives the sliding rack, the connecting rod, and the one-way claw to retreat;

[0054] The backward displacement of the one-way claw causes it to lose its effective locking position for the rotary lock.

[0055] Step 3, pull out the plug body:

[0056] Step 3.1, locking the rear damper:

[0057] Pull out the plug body and lock body assembly forward;

[0058] The rear damping member, the elastic plug rod, the retaining sleeve and the spring retaining ring are locked by the front damping member to maintain a static posture, the driving rack is kept in the left retracted position, and the moving claw assembly continues to fail, that is, loses the locking position; the rear annular groove and the annular groove retaining ring move forward with the rotating lock core and squeeze the unlocking compression spring;

[0059] The rotary lock core moves forward and rotates to reset, and the rotary lock head retreats along the spiral track in steps 1 and 2;

[0060] When the rotary lock head retreats to the locked position, due to the retreat of the one-way claw, the rotary lock head no longer retreats to the one-way thread groove and is locked by the lock head body 34g, but slides in front of the spiral bevel;

[0061] Step 3.2, slide out the rear damper:

[0062] Continue to pull out the plug body and lock body assembly forward;

[0063] The left side of the elastic plug rod is slightly deformed backwards, so that the rear damping member slides out from the right side of the front damping member, and the unlocking sleeve is pulled forward and reset together with the rotating lock core;

[0064] The top pressure spring is stretched to realize the reset of the lock hole push rod and the movable claw assembly.

[0065] Beneficial effects:

[0066] The lithium battery charging connector described in the present invention realizes the plug-in connection between the socket body and the plug body through the plug-in fixation of the lock hole assembly and the lock body assembly.

[0067] The lithium battery charging connector of the present invention is easy to operate and can be plugged in by simply pushing it backwards:

[0068] The lock body assembly is pushed backward to be inserted into the lock hole assembly; the rotating lock core moves backward and is rotated by the sliding lock core, so that the rotating lock head rotates backward along a spiral track and is finally locked by the one-way claw. The lithium battery charging connector described in the present invention is simple to operate and can be unlocked by pushing it backward again and can be easily pulled out by pulling it forward:

[0069] First, push back to unlock:

[0070] Continue to push the lock body assembly backward, so that the rotating lock core and the unlocking sleeve continue to retreat, and the unlocking sleeve triggers the moving claw assembly to cause it to lose the locking position: the elastic plug rod and the rear damping member squeeze the rack ramp, thereby pushing the driving rack and the front damping member to move left to the retracted position until the rear damping member is inserted behind the front damping member and locked; the driving rack drives the driven gear and the first bevel gear to rotate, and the first bevel gear drives the second bevel gear, the transmission spindle, and the driving gear to rotate, and the driving gear drives the sliding rack, the connecting plug rod, and the one-way claw to retreat; the backward displacement of the one-way claw causes it to lose its effective locking position for the rotating lock head;

[0071] Then, pull forward:

[0072] The plug body and the lock body assembly are pulled out forward; the movable claw assembly fails continuously, i.e. the locking position is lost; the rotating lock core moves forward and rotates to reset, and when the rotating lock head retreats to the locking position, due to the retreat of the one-way claw, the rotating lock head no longer retreats to the one-way thread groove and is stopped by the lock head body, but slides in front of the spiral bevel. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0074] Figure 1 It is a schematic diagram of the plug-in cooperation between the socket body and the plug body (initial connection state).

[0075] Figure 2 It is a schematic diagram of the plug-in cooperation between the socket body and the plug body (plug-in state).

[0076] Figure 3 It is a cross-sectional view of an embodiment of the socket body.

[0077] Figure 4 yes Figure 3 A cross-sectional view of an embodiment of the AA section.

[0078] Figure 5 yes Figure 3 Enlarged schematic diagram of part B in the middle.

[0079] Figure 6 yes Figure 5 Cross-sectional view of the first embodiment at section CC.

[0080] Figure 7 yes Figure 5 A cross-sectional view of the second embodiment at section CC.

[0081] Figure 8 yes Figure 5 A cross-sectional view of the third embodiment at section CC.

[0082] Fig. 9 yes Figure 5 A cross-sectional view of the fourth embodiment at section CC.

[0083] Fig.10 It is a cross-sectional view of an embodiment of the plug body.

[0084] Fig.11 yes Fig.10 Middle DD section cutaway view.

[0085] Fig.12 It is a partial cross-sectional view of an embodiment of the plug body.

[0086] Fig.13 It is a cross-sectional view of the first embodiment of the socket body and the plug body in the plugged state.

[0087] Fig.14 It is a cross-sectional view of a second embodiment of the socket body and the plug body in the plugged state.

[0088] Fig.15 It is a cross-sectional view of a third embodiment of the socket body and the plug body in the plugged state.

[0089] Fig.16 It is a cross-sectional view of a fourth embodiment of the socket body and the plug body in the plugged state.

[0090] icon:

[0091] m. socket body, n. lock hole assembly, p. plug body, q. lock body assembly;

[0092] 1. Keyhole chamber, 11. Rectangular front chamber, 12. Circular rear chamber;

[0093] 2. Lock hole push rod, 21. Central cylinder, 22. Horizontal side hole, 23. Limit blind hole, 24. Driving rack, 24a. Rack slope, 24b. Front damping part, 25. Limit plug;

[0094] 3. Move the claw assembly;

[0095] 31. Transmission wheel set, 31a. Wheel set chamber, 31b. Driven gear, 31c. First bevel gear;

[0096] 32. Transmission shaft assembly, 32a. Transmission shaft hole, 32b. Transmission mandrel, 32c. Second bevel gear, 32d. Driving gear;

[0097] 33. Sliding lock, 33a. Front slideway, 33b. Front side hole, 33c. Sliding rack, 33d. Connecting rod;

[0098] 34. One-way claw, 34a. Claw base, 34b. Spiral bevel, 34c. One-way thread groove, 34d. Lock head blind hole, 34e. Compression spring mandrel, 34f. Lock head compression spring, 34g. Lock head body, 34h. Mandrel jack, 34i. One-way bevel;

[0099] 4. Turn the lock cylinder;

[0100] 41. Fixed mandrel, 41a. Mandrel base, 41b. Mandrel body, 41c. Built-in round shaft, 41d. Limiting disc, 41e. Arc-shaped side hole, 41f. Rectangular insertion channel;

[0101] 42. driven rotating cylinder, 42a. rotating inner cylinder, 42b. widening circular cavity, 42c. side hole plug, 42d. torsion spring sleeve, 42e. reset torsion spring, 42f. front connecting ring, 42g. rotating outer cylinder, 42h. rotating lock head, 42i. driven thread groove, 42j. reset compression spring;

[0102] 5. Sliding lock cylinder, 51. Driving cylinder, 52. Rectangular plug, 53. Driving plug;

[0103] 6. Unlocking sleeve, 61. Rear annular groove, 62. Annular groove retaining ring, 63. Retaining sleeve, 64. Spring retaining ring, 65. Unlocking compression spring, 66. Elastic plug rod, 66a. Rear damping member. DETAILED DESCRIPTION

[0104] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0105] A lithium battery charging connection method,

[0106] The lithium battery charging connector comprises a socket body m and a plug body p which is pluggable with the socket body m;

[0107] A lock hole assembly n is arranged above the socket body m, and the lock hole assembly n comprises a lock hole chamber 1 arranged above the front end surface of the socket body m, a lock hole push rod 2 formed at the rear end of the lock hole chamber 1, and a moving claw assembly 3 formed at the front end of the right wall of the lock hole chamber 1;

[0108] A lock assembly q is disposed above the plug body p, and the lock assembly q includes:

[0109] Rotate the lock core 4 to insert it into the lock hole chamber 1 and lock it with the moving claw assembly 3;

[0110] The sliding lock core 5 is slidably inserted in the rotating lock core 4, and the sliding lock core 5 moves forward relative to the rotating lock core 4 and drives the rotating lock core 4 to rotate;

[0111] The unlocking sleeve 6 is arranged behind the rotating lock cylinder 4, and is used to drive the moving claw assembly 3 to retract and thereby unlock the locking cooperation of the moving claw assembly 3 to the rotating lock cylinder 4;

[0112] The lithium battery charging connection method comprises the following steps:

[0113] Step 1, insert the locking plug body p:

[0114] Step 2, unlock the movable claw assembly 3 so that it loses the locked position:

[0115] Step 3, unplug the plug body p.

[0116] As a further implementation scheme, a specific embodiment of the lock hole chamber and the lock body assembly is given below: the lock hole chamber 1 includes a rectangular front cavity 11 located above the front end surface of the socket body m, and a circular rear cavity 12 formed behind the rectangular front cavity 11;

[0117] The lock hole push rod 2 includes a central cylinder 21 arranged at the rear end of the circular rear cavity 12, a transverse side hole 22 formed at the rear end of the right side of the central cylinder 21, a limiting blind hole 23 formed at the front end of the transverse side hole 22, a driving rack 24 slidably inserted in the transverse side hole 22, a limiting plug 25 formed at the front end of the driving rack 24 and inserted into the limiting blind hole 23, and a top pressure spring 26 arranged in the transverse side hole 22 and located on the left side of the driving rack 24;

[0118] The front half of the right side of the driving rack 24 is formed with a rack inclined surface 24a inclined toward the right rear direction, and the rear half of the right side of the driving rack 24 is formed with a front damping member 24b;

[0119] The movable claw assembly 3 comprises:

[0120] The transmission wheel set 31 includes a wheel set chamber 31a formed at the rear end of the transverse side hole 22, a driven gear 31b rotatably disposed in the wheel set chamber 31a and meshing with the driving rack 24, and a first bevel gear 31c concentrically disposed on the driven gear 31b;

[0121] The transmission shaft assembly 32 includes a transmission shaft hole 32a disposed on the right side of the wheel assembly chamber 31a, a transmission spindle 32b rotatably disposed in the transmission shaft hole 32a, a second bevel gear 32c formed on the left side of the transmission spindle 32b and meshing with the first bevel gear 31c, and a driving gear 32d formed on the right side of the transmission spindle 32b;

[0122] The sliding lock head 33 includes a front slideway 33a provided in front of the right side of the transmission shaft hole 32a, a front side hole 33b provided on the left side of the front end of the front slideway 33a and connected to the rectangular front cavity 11, a sliding rack 33c slidably provided in the front slideway 33a, and a connecting rod 33d formed on the left side of the sliding rack 33c and provided through the front side hole 33b;

[0123] One-way claw 34, arranged on the left side of connecting rod 33d;

[0124] The one-way claw 34 includes a claw base 34a, a spiral bevel 34b provided in front of the claw base 34a and spirally moving in a downward and rearward direction, a one-way thread groove 34c provided in front of the left side of the claw base 34a and flush with the spiral bevel 34b, a lock head blind hole 34d formed in the front-to-back direction at the rear of the upper end of the one-way thread groove 34c, a compression spring core shaft 34e formed in the lock head blind hole 34d, and a lock head compression spring 34f wound around the compression spring core shaft 34e. The one-way claw 34 also includes a lock head body 34g, a core shaft jack 34h formed at the rear end of the lock head body 34g and plugged with the compression spring core shaft 34e, and a one-way bevel 34i formed at the front end of the lock head body 34g and inclined in the downward and front direction.

[0125] The rotary lock cylinder 4 comprises:

[0126] The fixed core shaft 41 includes a core shaft base 41a provided in front of the upper end of the plug body p, a core shaft body 41b formed at the rear end of the core shaft base 41a and plugged into the rectangular front cavity 11, a built-in circular shaft 41c formed at the rear end of the core shaft body 41b, a limiting disc 41d formed at the rear end of the built-in circular shaft 41c, an arc-shaped side hole 41e formed at the front end of the limiting disc 41d and arranged along the circumferential side wall of the limiting disc 41d, and a rectangular insertion channel 41f formed in the built-in circular shaft 41c along the front-to-back direction;

[0127] The driven rotating drum 42 includes a rotating inner drum 42a rotatably arranged on the built-in circular shaft 41c, a widening circular cavity 42b formed in the rear half of the inner cavity of the rotating inner drum 42a and matched with the limiting circular disc 41d, a side hole plug block 42c formed in the front half of the inner cavity of the widening circular cavity 42b and plugged into the arc-shaped side hole 41e, a torsion spring sleeve 42d formed at the rear end of the widening circular cavity 42b, and a return torsion spring 42e wound around the outer wall of the torsion spring sleeve 42d, one end of which is connected to the limiting circular disc. 41d and the other end is connected to the widened circular cavity 42b, the driven rotating cylinder 42 also includes a front connecting ring 42f provided at the front end of the outer wall of the rotating inner cylinder 42a, a rotating outer cylinder 42g formed at the rear end of the outer wall of the front connecting ring 42f, a rotating lock 42h formed on the left side of the outer wall of the rotating outer cylinder 42g and plugged into the one-way thread groove 34c, a driven thread groove 42i formed on the inner wall of the rotating outer cylinder 42g, and a return compression spring 42j wound between the rotating inner cylinder 42a and the rotating outer cylinder 42g;

[0128] The sliding lock core 5 includes a driving cylinder 51 which is slidably sleeved between the rotating inner cylinder 42a and the rotating outer cylinder 42g and is located behind the return compression spring 42j, and a rectangular plug rod 52 formed on the rear end surface of the driving cylinder 51. The rectangular plug rod 52 passes through the torsion spring sleeve 42d and is plugged into the rectangular insertion channel 41f. The sliding lock core 5 also includes a driving plug 53 which is formed on the outer wall of the driving cylinder 51 and is slidably inserted into the driven thread groove 42i. Based on the above improved embodiment, a specific step 1 is given, which is to insert the locking plug body p:

[0129] Step 1.1, initial insertion:

[0130] Align the socket body m, the lock hole assembly n with the plug body p and the lock body assembly q, and then push the lock body assembly q backward to insert it into the lock hole assembly n;

[0131] The rotating lock cylinder 4, the sliding lock cylinder 5, and the unlocking sleeve 6 move backward along the circular rear cavity 12 until the sliding lock cylinder 5 is stopped by the central cylinder 21;

[0132] Step 1.2, turn the lock head 42h to rotate backwards:

[0133] Continue to push the plug body p and the lock body assembly q backward, the rotating lock core 4 and the unlocking sleeve 6 overcome the damping of the return compression spring 42j and move backward relative to the sliding lock core 5, the lock hole push rod 2 and the lock hole chamber 1. At the same time,

[0134] The driven thread groove 42i is rotated by the driving plug 53, thereby driving the rotating inner cylinder 42a, the widened circular cavity 42b, the side hole plug block 42c, the front connecting ring 42f, the rotating outer cylinder 42g, and the rotating lock head 42h to overcome the torsion of the reset torsion spring 42e and rotate;

[0135] That is, the rotating lock head 42h rotates and steps backward along the spiral track;

[0136] Step 1.3, the rotating lock 42h is locked by the one-way claw 34:

[0137] Continue to push the plug body p and the lock body assembly q backward, the rotating lock head 42h rotates and steps backward until it is inserted into the one-way thread groove 34c, and drives the lock head body 34g and the core shaft insertion hole 34h to retreat along the compression spring core shaft 34e by squeezing the one-way inclined surface 34i;

[0138] The rotating lock 42h continues to rotate backward stepwise until it slides over the lock body 34g, at which time the lock body 34g and the spindle insertion hole 34h pop out and reset under the action of the lock compression spring 34f;

[0139] After stopping, the plug body p and the lock body assembly q are pushed back, and the return compression spring 42j pushes the rotating lock core 4 and the unlocking sleeve 6 forward, but the rotating lock head 42h is blocked by the lock head body 34g and cannot rotate forward. Further, a specific embodiment of the unlocking sleeve 6 is given below:

[0140] The unlocking sleeve 6 comprises a rear annular groove 61 formed on the rear half of the outer wall of the rotating inner cylinder 42a, an annular groove retaining ring 62 formed on the rear end of the rear annular groove 61, a retaining sleeve 63 rotatably sleeved on the rear annular groove 61, a spring retaining ring 64 formed on the front half of the inner wall of the retaining sleeve 63 and sleeved in the rear annular groove 61, and an unlocking compression spring 65 wound around the rear annular groove 61, wherein the unlocking compression spring 65 is located between the annular groove retaining ring 62 and the spring retaining ring 64, and an elastic plug rod 66 is further provided at the rear right side of the inner wall of the retaining sleeve 63, and a rear damping member 66a which is locked and matched with the front damping member 24b is provided at the lower left side of the elastic plug rod 66;

[0141] Based on the improved technical solution of the unlocking sleeve 6, an embodiment of step 2, unlocking the movable claw assembly 3 so that it loses the locked position, is given below:

[0142] Continue to push the lock body assembly q backward, so that the rotary lock core 4 and the unlocking sleeve 6 continue to retreat, and the rotary lock head 42h slides out from the one-way thread groove 34c;

[0143] Then,

[0144] The unlocking sleeve 6 triggers the moving claw assembly 3 to lose the locked position:

[0145] The elastic insertion rod 66 and the rear damping member 66a squeeze the rack inclined surface 24a, thereby pushing the driving rack 24 and the front damping member 24b to move leftward to the retreat position until the rear damping member 66a is inserted behind the front damping member 24b and locked;

[0146] The driving rack 24 drives the driven gear 31b and the first bevel gear 31c to rotate, and the first bevel gear 31c drives the second bevel gear 32c, the transmission spindle 32b, and the driving gear 32d to rotate, and the driving gear 32d drives the sliding rack 33c, the connecting rod 33d, and the one-way claw 34 to retreat;

[0147] The backward displacement of the one-way claw 34 causes it to lose its effective locking position for the rotary lock head 42h.

[0148] The lithium battery charging connection method further comprises the step 3 of pulling out the plug body p:

[0149] Step 3.1, locking the rear damping member 66a:

[0150] Pull out the plug body p and the lock body assembly q forward;

[0151] The rear damping member 66a, the elastic plug rod 66, the retaining sleeve 63, and the spring retaining ring 64 are locked by the front damping member 24b to maintain a static posture, the driving rack 24 is kept in the left retracted position, and the moving claw assembly 3 continues to fail, that is, loses the locking position;

[0152] The rear annular groove 61 and the annular groove retaining ring 62 move forward with the rotating lock core 4 and squeeze the unlocking compression spring 65;

[0153] The rotary lock core 4 moves forward and rotates to reset, and the rotary lock head 42h retreats along the spiral track in steps 1 and 2;

[0154] When the rotating lock head 42h retreats to the locked position, due to the retreat of the one-way claw 34, the rotating lock head 42h no longer retreats to the one-way thread groove 34c and is locked by the lock head body 34g, but slides in front of the spiral inclined surface 34b;

[0155] Step 3.2, the rear damping member 66a slides out:

[0156] Continue to pull out the plug body p and the lock body assembly q forward;

[0157] The left side of the elastic plug rod 66 is slightly deformed backwards, so that the rear damping member 66a slides out from the right side of the front damping member 24b, and the unlocking sleeve 6 is pulled forward and reset together with the rotating lock core 4;

[0158] The top pressure spring 26 is stretched to realize the reset of the lock hole push rod 2 and the movable claw assembly 3.

[0159] As a further implementation:

[0160] The elastic insert rod 66 is made of metal material, preferably memory metal, so that it can produce a slight deformation under the action of stress and return to its original posture after the stress disappears.

[0161] Thanks to the above improved technical solution, the elastic insertion rod 66 enables the rear damping member 66a to maintain its posture within a certain stress range, thereby maintaining effective locking cooperation with the front damping member 24b.

[0162] Step 3.1, rear damper is locked.

[0163] The elastic force of the unlocking compression spring 65 is the forward stress exerted on the spring retaining ring 64, the retaining sleeve 63, the elastic insert rod 66 and the rear damping member 66a. At this time, the elastic insert rod 66 can withstand the smaller stress without deformation and maintain the locking fit with the front damping member 24b.

[0164] In step 3.2, the rear damping member 66a is sliding out.

[0165] The unlocking compression spring 65 is fully compressed, and the annular groove retaining ring 62 directly and rigidly squeezes the spring retaining ring 64, the retaining sleeve 63, the elastic insert rod 66, and the rear damping member 66a. At this time, the elastic insert rod 66 bends and deforms forward under the larger rigid stress, and then smoothly slides over the front damping member 24b.

[0166] As a further implementation:

[0167] The front damping member 24b and the rear damping member 66a are made of metal material.

[0168] The front damping member 24b and the rear damping member 66a are made of non-slip and wear-resistant non-metallic materials.

[0169] Furthermore, the front damping member 24b and the rear damping member 66a are made of polytetrafluoroethylene material.

[0170] As a further implementation:

[0171] The rotation angle of the driven drum 42 under normal conditions.

[0172] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lithium battery charging connection method, characterized in that: The following steps are involved: Step 1, insert the locking plug body (p): Step 1.1, initial insertion: Align the socket body (m), the lock hole assembly (n), the plug body (p), and the lock body assembly (q), and then push the lock body assembly (q) backward to insert it into the lock hole assembly (n); The rotating lock core (4), the sliding lock core (5), and the unlocking sleeve (6) move backward along the circular rear cavity (12) until the sliding lock core (5) is stopped by the central cylinder (21); Step 1.2, turn the lock (42h) and rotate backwards: The plug body (p) and the lock body assembly (q) are pushed back continuously, and the rotating lock core (4) and the unlocking sleeve (6) overcome the damping of the return compression spring (42j) and move backward relative to the sliding lock core (5), the lock hole push rod (2) and the lock hole chamber (1). at the same time, The driven thread groove (42i) is rotated by the driving plug (53), thereby driving the rotating inner cylinder (42a), the widened circular cavity (42b), the side hole plug block (42c), the front connecting ring (42f), the rotating outer cylinder (42g), and the rotating lock head (42h) to overcome the torsion of the reset torsion spring (42e) and rotate; That is, the rotating lock head (42h) rotates and steps backward along the spiral track; Step 1.3, the rotating lock (42h) is locked by the one-way claw (34): The plug body (p) and the lock body assembly (q) are pushed back continuously, and the rotating lock head (42h) rotates and steps backward until it is inserted into the one-way thread groove (34c), and drives the lock head body (34g) and the core shaft insertion hole (34h) to retreat along the compression spring core shaft (34e) by squeezing the one-way inclined surface (34i); The rotating lock (42h) continues to rotate backwards until it slides over the lock body (34g), at which time the lock body (34g) and the spindle insertion hole (34h) pop out and reset under the action of the lock compression spring (34f); After stopping, the plug body (p) and the lock body assembly (q) are pushed back, and the return compression spring (42j) pushes the rotating lock core (4) and the unlocking sleeve (6) forward, but the rotating lock head (42h) is blocked by the lock head body (34g) and cannot rotate forward; Step 2, unlock the movable claw assembly (3) so that it loses its locked position: The lock body assembly (q) is pushed back continuously, so that the rotary lock core (4) and the unlocking sleeve (6) continue to move back, and the rotary lock head (42h) slides out of the one-way thread groove (34c); Then, The unlocking sleeve (6) triggers the moving claw assembly (3) to lose the locked position: The elastic insertion rod (66) and the rear damping member (66a) squeeze the rack inclined surface (24a), thereby pushing the driving rack (24) and the front damping member (24b) to move leftward to a retreat position until the rear damping member (66a) is inserted behind the front damping member (24b) and is locked; The driving rack (24) drives the driven gear (31b) and the first bevel gear (31c) to rotate, the first bevel gear (31c) drives the second bevel gear (32c), the transmission core shaft (32b), and the driving gear (32d) to rotate, and the driving gear (32d) drives the sliding rack (33c), the connecting rod (33d), and the one-way claw (34) to retreat; The backward displacement of the one-way claw (34) causes it to lose its effective locking position for the rotating lock head (42h); Step 3, pull out the plug body (p): Step 3.1, locking the rear damping member (66a): Pull out the plug body (p) and lock body assembly (q) forward; The rear damping member (66a), the elastic insert rod (66), the retaining sleeve (63), and the spring retaining ring (64) are locked by the front damping member (24b) to maintain a static posture, the driving rack (24) is maintained in the left retracted position, and the movable claw assembly (3) continuously fails, that is, loses the locking position; The rear annular groove (61) and the annular groove retaining ring (62) move forward along with the rotating lock core (4) and compress the unlocking compression spring (65); the rotating lock core (4) moves forward and rotates to reset, and the rotating lock head (42h) retreats along the spiral track in steps 1 and 2; When the rotating lock head (42h) retreats to the locked position, due to the retreat of the one-way claw (34), the rotating lock head (42h) no longer retreats to the one-way thread groove (34c) and is locked by the lock head body (34g), but slides in front of the spiral inclined surface (34b); Step 3.2, slide out the rear damping member (66a): Continue to pull out the plug body (p) and lock body assembly (q) forward; The left side of the elastic plug rod (66) is slightly deformed backwards, so that the rear damping member (66a) slides out from the right side of the front damping member (24b), and the unlocking sleeve (6) is pulled forward and reset together with the rotating lock core (4); The top pressure spring (26) is stretched to realize the reset of the lock hole top rod (2) and the movable claw assembly (3); The above-mentioned lithium battery charging connection method uses a lithium battery charging connector, which includes a socket body (m) and a plug body (p) that is pluggable with the socket body (m); A lock hole assembly (n) is arranged above the socket body (m), and the lock hole assembly (n) comprises a lock hole chamber (1) arranged above the front end surface of the socket body (m), a lock hole push rod (2) formed at the rear end of the lock hole chamber (1), and a movable claw assembly (3) formed at the front end of the right wall of the lock hole chamber (1); A lock assembly (q) is disposed above the plug body (p), and the lock assembly (q) comprises: A rotating lock core (4) is inserted into the lock hole chamber (1) and locked with the movable claw assembly (3); a sliding lock core (5) is slidably inserted in the rotating lock core (4), and the sliding lock core (5) moves forward relative to the rotating lock core (4) and drives the rotating lock core (4) to rotate; An unlocking sleeve (6) is arranged behind the rotating lock core (4) and is used to drive the moving claw assembly (3) to retract and thereby unlock the locking cooperation between the moving claw assembly (3) and the rotating lock core (4); The lock hole chamber (1) comprises a rectangular front chamber (11) located above the front end surface of the socket body (m), and a circular rear chamber (12) formed behind the rectangular front chamber (11); The lock hole push rod (2) comprises a central cylinder (21) arranged at the rear end of the circular rear cavity (12), a transverse side hole (22) formed at the rear end of the right side of the central cylinder (21), a limiting blind hole (23) formed at the front end of the transverse side hole (22), a driving rack (24) slidably inserted in the transverse side hole (22), a limiting plug (25) formed at the front end of the driving rack (24) and inserted into the limiting blind hole (23), and a top pressure spring (26) arranged in the transverse side hole (22) and located on the left side of the driving rack (24); The front half of the right side of the driving rack (24) is formed with a rack inclined surface (24a) inclined toward the right rear direction, and the rear half of the right side of the driving rack (24) is formed with a front damping member (24b); The movable claw assembly (3) comprises: The transmission wheel set (31) comprises a wheel set chamber (31a) formed at the rear end of the transverse side hole (22), a driven gear (31b) rotatably disposed in the wheel set chamber (31a) and meshing with the driving rack (24), and a first bevel gear (31c) coaxially disposed on the driven gear (31b); The transmission shaft assembly (32) comprises a transmission shaft hole (32a) arranged on the right side of the wheel assembly chamber (31a), a transmission core shaft (32b) rotatably arranged in the transmission shaft hole (32a), a second bevel gear (32c) formed on the left side of the transmission core shaft (32b) and meshing with the first bevel gear (31c), and a driving gear (32d) formed on the right side of the transmission core shaft (32b); The sliding lock head (33) comprises a front slideway (33a) arranged in front of the right side of the transmission shaft hole (32a), a front side hole (33b) arranged on the left side of the front end of the front slideway (33a) and connected to the rectangular front cavity (11), a sliding rack (33c) slidably arranged in the front slideway (33a), and a connecting rod (33d) formed on the left side of the sliding rack (33c) and passing through the front side hole (33b); A one-way claw (34) is arranged on the left side of the connecting rod (33d); The one-way claw (34) comprises a claw base (34a), a spiral bevel (34b) arranged in front of the claw base (34a) and spirally moving in a downward and rearward direction, a one-way thread groove (34c) arranged in front of the left side of the claw base (34a) and flush with the spiral bevel (34b), a lock head blind hole (34d) formed in the front-to-back direction at the rear of the upper end of the one-way thread groove (34c), a compression spring core shaft (34e) formed in the lock head blind hole (34d), and a lock head compression spring (34f) wound around the compression spring core shaft (34e). The one-way claw (34) also comprises a lock head body (34g), a core shaft jack (34h) formed at the rear end of the lock head body (34g) and plugged with the compression spring core shaft (34e), and a one-way bevel (34i) formed at the front end of the lock head body (34g) and inclined in a downward and frontward direction. The rotary lock core (4) comprises: The fixed core shaft (41) comprises a core shaft base (41a) arranged in front of the upper end of the plug body (p), a core shaft body (41b) formed at the rear end of the core shaft base (41a) and plugged into the rectangular front cavity (11), a built-in circular shaft (41c) formed at the rear end of the core shaft body (41b), a limiting disc (41d) formed at the rear end of the built-in circular shaft (41c), an arc-shaped side hole (41e) formed at the front end of the limiting disc (41d) and arranged along the circumferential side wall of the limiting disc (41d), and a rectangular insertion channel (41f) formed in the built-in circular shaft (41c) along the front-to-back direction; the driven rotating cylinder (42) comprises a rotating inner cylinder (42a) rotatably arranged on the built-in circular shaft (41c), a widened circular cavity (42b) formed at the rear half of the inner cavity of the rotating inner cylinder (42a) and cooperating with the limiting disc (41d), and a cavity (41c) formed in the inner cavity of the widened circular cavity (42b). The front half part includes a side hole plug block (42c) plugged into and matched with the arc-shaped side hole (41e), a torsion spring sleeve (42d) formed at the rear end of the widened circular cavity (42b), and a return torsion spring (42e) wound around the outer wall of the torsion spring sleeve (42d), one end of the return torsion spring (42e) is connected to the limiting disc (41d) and the other end is connected to the widened circular cavity (42b), and the driven rotating cylinder (42) also includes a rotating inner cylinder (42a) A front connecting ring (42f) at the front end of the outer wall, a rotating outer cylinder (42g) formed at the rear end of the outer wall of the front connecting ring (42f), a rotating lock (42h) formed at the left side of the outer wall of the rotating outer cylinder (42g) and plugged into the one-way thread groove (34c), a driven thread groove (42i) formed on the inner wall of the rotating outer cylinder (42g), and a return compression spring (42j) wound between the rotating inner cylinder (42a) and the rotating outer cylinder (42g); The sliding lock core (5) comprises a driving cylinder (51) which is slidably sleeved between a rotating inner cylinder (42a) and a rotating outer cylinder (42g) and is located behind a return compression spring (42j), and a rectangular insertion rod (52) formed on the rear end surface of the driving cylinder (51), wherein the rectangular insertion rod (52) passes through the torsion spring sleeve (42d) and is plugged into the rectangular insertion channel (41f). The sliding lock core (5) also comprises a driving plug (53) which is formed on the outer wall of the driving cylinder (51) and is slidably inserted into the driven thread groove (42i). The unlocking sleeve (6) comprises a rear annular groove (61) formed on the rear half of the outer wall of the rotating inner cylinder (42a), an annular groove retaining ring (62) formed on the rear end of the rear annular groove (61), a retaining sleeve (63) rotatably sleeved on the rear annular groove (61), a spring retaining ring (64) formed on the front half of the inner wall of the retaining sleeve (63) and sleeved in the rear annular groove (61), and an unlocking compression spring (65) wound around the rear annular groove (61), wherein the unlocking compression spring (65) is located between the annular groove retaining ring (62) and the spring retaining ring (64), and an elastic insertion rod (66) is further provided at the rear right side of the inner wall of the retaining sleeve (63), and a rear damping member (66a) which is locked with the front damping member (24b) is provided at the lower left side of the elastic insertion rod (66).

2. A lithium battery charging connection method according to claim 1, characterized in that: The front damping member (24b) and the rear damping member (66a) are made of metal material.

3. A lithium battery charging connection method according to claim 2, characterized in that: The front damping member (24b) and the rear damping member (66a) are made of non-metallic materials.

4. A lithium battery charging connection method according to claim 3, characterized in that: The front damping member (24b) and the rear damping member (66a) are made of polytetrafluoroethylene material.

5. A lithium battery charging connection method according to claim 4, characterized in that: The elastic insert rod (66) is made of metal material.

6. A lithium battery charging connection method according to claim 5, characterized in that: The elastic insertion rod (66) is made of memory metal material.

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