Temperature control type lead-acid battery charger

Abstract

The utility model discloses a temperature control type lead-acid battery charger, which particularly relates to the technical field of battery chargers, and comprises a shell, a heat dissipation opening formed in the shell, and a fixed seat movably arranged in the heat dissipation opening, the closed fan blades are rotationally arranged on the fixed seat, rotating shafts of the closed fan blades are distributed in a radial shape with the axis of the heat dissipation opening as the center, and the closed fan blades are driven to deflect so that the heat dissipation opening can be opened or closed; and the driving motor is used for driving the closed fan blades. The plurality of closed fan blades of the temperature control type lead-acid battery charger enclose a whole circle covering the horizontal projection of the heat dissipation opening in a default state, dust can be effectively prevented from entering through the heat dissipation opening, and after charging is started, the driving motor drives the plurality of closed fan blades to deflect at the same time and form a spiral flow channel, so that the temperature control type lead-acid battery charger is convenient to use. And outside air is guided by the sector to form a spiral vortex when flowing into the heat dissipation opening, so that the heat dissipation efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery charger technical field, concretely related to a temperature control type lead -acid battery charger. BACKGROUND

[0002] The temperature control type lead -acid battery charger is a kind of charging equipment that can automatically adjust charging parameters according to battery temperature variation. Its main function is to ensure that the battery is always in a safe and efficient charging state during charging, thereby prolonging the service life of the battery and improving charging efficiency.

[0003] In combination with the publication (announcement) No. CN107910925B, the publication (announcement) date is May 2, 2023, a kind of charger is disclosed, including body, two prongs plug, three prongs plug and support, the body is equipped with receiving cavity, the bottom of receiving cavity is equipped with fin, the top of fin is equipped with fan;Two guide slots are provided on the side wall of the body, the two guide slots are arranged along the depth direction of the receiving cavity, the two opposite side walls of the guide slot are equipped with limiting slot;The support includes shelf guide rod, the position of guide rod corresponds with the guide slot, and the shape is compatible, the end of guide rod away from shelf is equipped with limiting lug, the limiting lug is compatible with the shape of limiting slot, a first spring is arranged in the guide slot, one end of the first spring is fixedly connected with the guide slot, and the other end is fixedly connected with the guide rod;Its novel structure provides a place for electronic product charging, solves the problem of placing electronic products in different occasions, and can cool the charging head and electronic products to a certain extent during charging.

[0004] However, in the prior art including the above-mentioned patent, the air outlet slot is always kept open, which allows dust to enter the inside of the shell, and the accumulated dust reduces the efficiency of heat dissipation. SUMMARY

[0005] The utility model aims at providing a temperature control type lead -acid battery charger to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a temperature control type lead -acid battery charger, including shell and the heat dissipation opening that is opened on it, including the fixed seat that is movably arranged in the heat dissipation opening;

[0007] The closing fan blade is rotatably arranged on the fixed seat, and the rotation axis of the closing fan blade is radially distributed with the axis of the heat dissipation opening as the center, and the closing fan blade is deflected under the drive to open or close the heat dissipation opening;

[0008] The drive motor is used to drive the closing fan blade.

[0009] As preferred, it further comprises a clamping piece for locking the closing fan blade at a predetermined angle, which is correspondingly arranged with the closing fan blade.

[0010] As preferred, a limiting disc coaxially arranged in the heat dissipation port and driven to rotate is further included, and a blocking piece is fixedly arranged on the closing fan blade and matched with the limiting disc.

[0011] As preferred, a through hole is arranged on the blocking piece, and an inclined plate is fixedly arranged on both sides of the blocking piece.

[0012] As preferred, a plurality of blocking pieces are circumferentially arranged on the limiting disc, and the blocking pieces have a work station for driving the fixed seat to rotate in the activity stroke.

[0013] As preferred, a magnetic attraction part for attracting the blocking piece to stop is fixedly arranged on the fixed seat.

[0014] As preferred, a transmission sleeve for adjusting the distance between the fixed seat and the heat dissipation port is axially slidably arranged in the heat dissipation port.

[0015] As preferred, the minimum displacement distance of the transmission sleeve is greater than twice the width of the closing fan blade.

[0016] As preferred, a first spring for keeping a predetermined distance between the transmission sleeve and the driving motor is further included.

[0017] As preferred, a torsion spring for making the closing fan blade closely contact with the heat dissipation port is fixedly arranged on the closing fan blade.

[0018] In the above technical solution, the temperature control type lead-acid battery charger has the following beneficial effects: the plurality of closing fan blades are closed to form a whole circle covering the horizontal projection of the heat dissipation port in the default state, which can effectively prevent dust from entering through the heat dissipation port, and after the charging starts, the driving motor drives the plurality of closing fan blades to simultaneously deflect and form a spiral flow channel, and when the external air flows into the heat dissipation port, the air is guided by the fan surface to form a spiral vortex, thereby further improving the heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 The overall three-dimensional schematic view provided by the embodiments of the present application is provided.

[0021] Figure 2 The structure schematic view of the internal closing fan blade and the driving motor of the shell provided by the embodiments of the present application is provided.

[0022] Figure 3The utility model provides a closed fan blade and drive sleeve structure schematic view provided for the embodiment of the utility model.

[0023] Figure 4 The utility model provides a fixed seat and limit disc structure schematic view provided for the embodiment of the utility model.

[0024] Figure 5 The utility model provides a blocking piece and torsional spring structure schematic view provided for the embodiment of the utility model.

[0025] Mark explanation:

[0026] 1, shell, 2, heat dissipation port, 3, closed fan blade, 31, fixed seat, 32, clamping piece, 33, magnetic attraction part, 34, push rod, 35, second spring, 36, blocking piece, 37, through -hole, 38, inclined plate, 39, torsional spring, 4, drive motor, 41, slide rod, 5, first spring, 6, drive sleeve, 61, arc groove, 7, limit disc, 71, resistance piece, 72, protruding block. Specific implementation

[0027] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in conjunction with the drawings.

[0028] As Figures 1-5 Indicated, a temperature control type lead acid battery charger, including shell 1 and the heat dissipation port 2 set up on it, including the fixed seat 31 of movable setting in the heat dissipation port 2;

[0029] The closed fan blade 3 of rotation setting on the fixed seat 31, and the pivot of closed fan blade 3 is radially distributed with the axis of heat dissipation port 2 as center, and closed fan blade 3 is driven to deflect to make heat dissipation port 2 open or close;

[0030] Drive motor 4 for driving closed fan blade 3.

[0031] Specifically, the closed fan blade 3 closes the heat dissipation port 2 in default state, at this time, the fan surface of multiple closed fan blades 3 is enclosed into the whole circle covering the horizontal projection of heat dissipation port 2, can effectively prevent dust from entering through heat dissipation port 2.

[0032] Further, a bevel gear can be arranged on the end of the rotating shaft of the closed fan blade 3 and the output shaft of the driving motor 4 to mesh with each other, and the driving motor 4 drives the closed fan blade 3 to deflect when outputting torque, or a pull rope is arranged on the closed fan blade 3, and the closed fan blade 3 is driven to deflect by winding the pull rope through the rotation of the output shaft of the driving motor 4, or other driving modes known to those skilled in the art can also be used. The driving motor 4 is electrically connected with the charger body, so that the driving motor 4 is automatically started when the charger starts charging, and drives multiple closed fan blades 3 to deflect at the same time, at this time, the closed fan blades 3 change from the original coplanar relationship to parallel to each other, the heat dissipation port 2 is opened, and a spiral flow channel is formed between two adjacent closed fan blades 3, so that the external air forms a spiral vortex when flowing into the heat dissipation port 2 under the guidance of the fan surface, and the heat dissipation efficiency is further improved.

[0033] In the above technology, multiple closed fan blades 3 are enclosed to form a whole circle covering the horizontal projection of the heat dissipation port 2 in the default state, which can effectively prevent dust from entering through the heat dissipation port 2, and after charging starts, the driving motor 4 drives multiple closed fan blades 3 to deflect at the same time and form a spiral flow channel, and the external air forms a spiral vortex when flowing into the heat dissipation port 2 under the guidance of the fan surface, and the heat dissipation efficiency is further improved.

[0034] As a further provided embodiment of the utility model, a clamping piece 32 for locking the closed fan blade 3 at a predetermined angle is further provided, which is arranged corresponding to the closed fan blade 3.

[0035] Specifically, the angle of the closed fan blade 3 at the end of the rotating stroke is the predetermined angle, and the second spring 35 is arranged on the clamping piece 32. A protruding part can be arranged on the closed fan blade 3, and the protruding part is rotated during the rotation of the closed fan blade 3. The protruding part first pushes the clamping piece 32 to be staggered with the protruding part and store the energy of the second spring 35, and then the stored energy of the second spring 35 is released and blocks the protruding part, so as to realize locking. Or the clamping piece 32 is tightly abutted to the side surface of the closed fan blade 3, and a plurality of clamping teeth are arranged on the side surface of the closed fan blade 3. When the closed fan blade 3 rotates, the clamping piece 32 is blocked by the clamping teeth one by one, and the closed fan blade 3 is locked by the friction between the clamping teeth and the clamping piece 32 when the closed fan blade 3 stops rotating, or other locking structures known to those skilled in the art can also be used.

[0036] As a further provided embodiment of the utility model, a clamping piece 32 for locking the closed fan blade 3 at a predetermined angle is further provided, which is arranged corresponding to the closed fan blade 3.

[0037] Specifically, the driving motor 4 outputs torque and drives the limiting disc 7 to rotate. The limiting disc 7 is blocked by the blocking piece 36 in the default state, at this time, the limiting disc 7 rotates relative to the fixed seat 31 and pushes the blocking piece 36, so that the blocking piece 36 drives the closed fan blade 3 to deflect, until the blocking piece 36 is staggered with the limiting disc 7, likeFigure 4 As shown in the state, the closing fan blade 3 is stopped, which is the predetermined angle of the closing fan blade 3 at this time, and then the closing fan blade 3 is locked by the combination of the blocking piece 32, so that the closing fan blade 3 is fixed in the open state.

[0038] As a further embodiment of the utility model further provides, the blocking piece 36 is provided with a through hole 37, and the blocking piece 36 is fixedly provided with an inclined plate 38 on both sides.

[0039] Specifically, the blocking piece 32 is radially slidably arranged on the fixed seat 31, and the blocking piece 32 is provided with a pin rod at the end. The blocking piece 36 is rotated by the limiting disc 7, so that the inclined plate 38 first abuts against the pin rod, the pin rod is guided by the inclined surface of the inclined plate 38, so that the end is slid to the end face where the through hole 37 is located, and the second spring 35 is gradually compressed. Then the blocking piece 36 is staggered with the limiting disc 7, the position of the pin rod corresponds to the through hole 37, the second spring 35 is released and drives the pin rod to insert into the through hole 37, and the blocking piece 36 is locked by the pin rod, so that the angle of the closing fan blade 3 is fixed.

[0040] As a further embodiment of the utility model further provides, a plurality of blocking pieces 71 are circumferentially arranged on the limiting disc 7, and the blocking piece 71 has a working position for driving the fixed seat 31 to rotate in the movable stroke.

[0041] Specifically, the fixed seat 31 is rotatably arranged on the limiting disc 7. A plurality of through grooves are formed in the arc surface of the fixed seat 31, and the closing fan blade 3 is rotatably arranged on the bottom surface of the through groove close to the axis of the fixed seat 31, and the range for the movement of the blocking piece 71 is defined between the two sides of the through groove. The limiting disc 7 drives the blocking piece 71 to move in the through groove when rotating, the blocking piece 71 first pushes the blocking piece 36 to rotate to the blocking piece 36, and then the blocking piece 71 is blocked by one side of the inner wall of the through groove, and the blocking piece 71 is continuously driven to rotate, at this time, the driving force is transmitted from the blocking piece 71 to the inner wall of the through groove, so as to drive the fixed seat 31 to rotate, and the fixed seat 31 drives the plurality of closing fan blades 3 kept at the predetermined angle to rotate synchronously and blow, so that the air flow speed is accelerated, and the heat dissipation efficiency is further improved.

[0042] As a further embodiment of the utility model further provides, the fixed seat 31 is fixedly provided with a magnetic attraction part 33 for attracting the blocking piece 71 to stop.

[0043] Specifically, a plurality of protrusions 72 are circumferentially arranged on the limiting disc 7, and a lever 34 extending to the limiting disc 7 is arranged on the blocking piece 32, and the rotation direction of the limiting disc 7 when driven to rotate is positive, at this time, the blocking piece 71 abuts against the first side of the through groove, and the magnetic attraction part 33 is arranged on the second side of the through groove, and the blocking piece 71 is made of iron. Figure 4 As shown in the state, and the magnetic attraction part 33 is arranged on the second side of the through groove, and the blocking piece 71 is made of iron.

[0044] Further, when the blocking piece 71 moves from the second side to the first side in the through slot, the protrusion 72 pushes the push rod 34 upward during the rotation of the limiting disc 7 and then falls down, at this time, since the closing fan blade 3 has not been rotated to the predetermined angle, the blocking piece 36 does not contact the clamping piece 32. Until the blocking piece 71 is blocked by the inner wall of the through slot, the clamping piece 32 locks the blocking piece 36, and the blocking piece 71 drives the fixed seat 31 to rotate forward, when the charging stops, the driving motor 4 is powered off, so that the limiting disc 7 first stops rotating, the fixed seat 31 continues to rotate under the action of inertia, the limiting disc 7 reversely rotates relative to the fixed seat 31, the blocking piece 71 moves from the first side to the second side in the through slot and is attracted by the magnetic attraction part 33, and the blocking piece 71 finally stops at the second side. In this process, the protrusion 72 reversely rotates and pushes the clamping piece 32 upward to disengage from the through hole 37, so that the clamping piece 32 no longer locks the closing fan blade 3.

[0045] As further provided in another embodiment of the utility model, a transmission sleeve 6 is further provided for adjusting the distance between the fixed seat 31 and the heat dissipation opening 2, which is arranged in the heat dissipation opening 2 and slides along the axial direction.

[0046] Specifically, the end of the transmission sleeve 6 is fixedly welded with the limiting disc 7 and is sleeved with the output shaft of the driving motor 4. The output end of the electric telescopic rod or telescopic cylinder is fixedly connected with the transmission sleeve 6, and the electric telescopic rod or telescopic cylinder is electrically connected with the driving motor 4. In the default state, the distance between the transmission sleeve 6 and the heat dissipation opening 2 is the smallest, at this time, the closing fan blade 3 is in the closed state and tightly abuts against the inner wall of the heat dissipation opening 2, so that the dust is blocked in the heat dissipation opening 2. Then, the driving motor 4 is started and drives the electric telescopic rod or telescopic cylinder, so that the distance between the transmission sleeve 6 and the heat dissipation opening 2 is increased, and a space sufficient for the deflection of the closing fan blade 3 is generated.

[0047] As further provided in another embodiment of the utility model, the minimum displacement distance of the transmission sleeve 6 is greater than twice the width of the closing fan blade 3.

[0048] Specifically, the output length of the electric telescopic rod or telescopic cylinder can be controlled by the program setting, so as to limit the displacement of the transmission sleeve 6. When the displacement distance of the transmission sleeve 6 is the smallest, the distance between the transmission sleeve 6 and the heat dissipation opening 2 is approximately twice the width of the closing fan blade 3, at this time, the deflection space of the closing fan blade 3 is the smallest, and the ventilation distance between two adjacent closing fan blades 3 is approximately the width of the closing fan blade 3, at this time, the ventilation distance is the minimum ventilation distance but not the optimal ventilation distance.

[0049] As further provided in another embodiment of the utility model, a first spring 5 is further provided for keeping a predetermined distance between the transmission sleeve 6 and the driving motor 4.

[0050] Specifically, the first spring 5 is sleeved on the output shaft of the driving motor 4 and pushes the transmission sleeve 6, the transmission sleeve 6 is provided with an arc groove 61, and the output shaft of the driving motor 4 is provided with a sliding rod 41 in sliding fit with the arc groove 61. When the driving motor 4 outputs torque, the sliding rod 41 rotates and pushes the arc groove 61 to make the transmission sleeve 6 slide in the axial direction, the distance between the transmission sleeve 6 and the heat dissipation port 2 increases and the first spring 5 contracts, because the rotating force provided by the driving motor 4 is much greater than the elastic force of the first spring 5, the support force of the rotating force on the arc groove 61 overcomes the elastic force of the first spring 5 in the rotating process, and the distance between the transmission sleeve 6 and the heat dissipation port 2 can always accommodate the deflection of the closed fan blade 3 in the rotating process of the closed fan blade 3. After the driving motor 4 stops running, the elastic force of the first spring 5 is released and pushes the transmission sleeve 6 to approach the heat dissipation port 2, at this time the closed fan blade 3 returns to the closed state.

[0051] As further provided by the utility model, a torsional spring 39 is fixedly arranged on the closed fan blade 3 and used to make the closed fan blade 3 tightly contact the heat dissipation port 2.

[0052] Specifically, the blocking piece 71 moves in the through groove when the limiting disc 7 rotates, the blocking piece 71 first pushes the blocking piece 36 to rotate to be staggered with the blocking piece 36, the angle plate 38 first abuts against the pin rod, the pin rod is guided by the inclined surface of the angle plate 38 to make the end portion slide to the end face where the through hole 37 is located, and the second spring 35 is gradually compressed. Then, the blocking piece 36 is staggered with the limiting disc 7, the position of the pin rod corresponds to the through hole 37, the second spring 35 is released and drives the pin rod to insert into the through hole 37, the blocking piece 36 is locked by the pin rod, and the angle of the closed fan blade 3 is fixed.

[0053] Working principle: when the driving motor 4 outputs torque, the sliding rod 41 rotates and pushes the arc groove 61 to make the transmission sleeve 6 slide in the axial direction, the distance between the transmission sleeve 6 and the heat dissipation port 2 increases and the first spring 5 contracts, because the rotating force provided by the driving motor 4 is much greater than the elastic force of the first spring 5, the support force of the rotating force on the arc groove 61 overcomes the elastic force of the first spring 5 in the rotating process, and the distance between the transmission sleeve 6 and the heat dissipation port 2 can always accommodate the deflection of the closed fan blade 3 in the rotating process of the closed fan blade 3.

[0054] When the limiting disc 7 rotates, the blocking piece 71 moves in the through groove, the blocking piece 71 first pushes the blocking piece 36 to rotate to be staggered with the blocking piece 36. The angle plate 38 first abuts against the pin rod, the pin rod is guided by the inclined surface of the angle plate 38 to make the end portion slide to the end face where the through hole 37 is located, and the second spring 35 is gradually compressed. Then, the blocking piece 36 is staggered with the limiting disc 7, the position of the pin rod corresponds to the through hole 37, the second spring 35 is released and drives the pin rod to insert into the through hole 37, the blocking piece 36 is locked by the pin rod, and the angle of the closed fan blade 3 is fixed.

[0055] Subsequently, the blocking piece 71 is blocked by one side of the through slot inner wall, and continues to drive the blocking piece 71 to rotate, at this time, the driving force will be transmitted from the blocking piece 71 to the through slot inner wall, thereby driving the fixed seat 31 to rotate, and the fixed seat 31 drives the plurality of closed flaps 3 kept at a predetermined angle to rotate synchronously to blow air.

[0056] After the driving motor 4 stops running, the elastic force of the first spring 5 is released and pushes the driving sleeve 6 to move close to the heat dissipation opening 2, the driving sleeve 6 drives the limiting disc 7 to stop rotating first, the fixed seat 31 continues to rotate under the action of inertia, so that the limiting disc 7 rotates reversely relative to the fixed seat 31, the blocking piece 71 moves from the first side to the second side of the through slot and is attracted by the magnetic attraction part 33, and the blocking piece 71 finally stops at the second side, in the process, the protruding block 72 moves upward to move away from the through hole 37 and moves upward to move away from the through hole 37 in the reverse rotation process, so that the blocking piece 32 no longer locks the closed flaps 3, the elastic potential energy of the torsional spring 39 is released and drives the plurality of closed flaps 3 to restore to the default state of closely adhering to the heat dissipation opening 2.

[0057] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A temperature-controlled lead-acid battery charger comprising a housing (1) and a heat dissipation opening (2) formed in the housing (1), characterized in that, The fixed seat (31) is arranged in the heat dissipation opening (2); The closing fan blade (3) is arranged on the fixed seat (31) and rotates around the axis of the heat dissipation opening (2), and the rotating shaft of the closing fan blade (3) is radially distributed; the closing fan blade (3) is driven to deflect downward to open or close the heat dissipation opening (2); The driving motor (4) is used to drive the closing fan blade (3).

2. A temperature controlled lead-acid battery charger according to claim 1, wherein, The locking piece (32) is arranged corresponding to the closing fan blade (3) to lock the closing fan blade (3) at a predetermined angle.

3. A temperature controlled lead-acid battery charger according to claim 1, wherein, The limiting disc (7) is coaxially arranged in the heat dissipation opening (2) and rotates under the driving; the blocking piece (36) is fixedly arranged on the closing fan blade (3) and abuts against the limiting disc (7).

4. A temperature controlled lead-acid battery charger according to claim 3, wherein, The through hole (37) is arranged on the blocking piece (36), and the inclined plate (38) is fixedly arranged on both sides of the blocking piece (36).

5. A temperature controlled lead-acid battery charger according to claim 3, wherein, The plurality of blocking pieces (71) are circumferentially arranged on the limiting disc (7), and the blocking piece (71) has a working position for driving the fixed seat (31) to rotate in the movable stroke.

6. A temperature controlled lead-acid battery charger according to claim 1, wherein, The magnetic attraction part (33) is fixedly arranged on the fixed seat (31) to attract the blocking piece (71) to stop.

7. A temperature controlled lead-acid battery charger according to claim 1, wherein, The transmission sleeve (6) is arranged in the heat dissipation opening (2) and slides along the axial direction.

8. A temperature controlled lead-acid battery charger according to claim 7, wherein, The minimum displacement distance of the transmission sleeve (6) is greater than twice the width of the closing fan blade (3).

9. A temperature controlled lead-acid battery charger according to claim 7, wherein, The first spring (5) is arranged between the transmission sleeve (6) and the driving motor (4) to keep a predetermined distance.

10. A temperature controlled lead-acid battery charger according to claim 1, wherein, The torsional spring (39) is fixedly arranged on the closing fan blade (3) to make the closing fan blade (3) tightly contact the heat dissipation opening (2).

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