Storage battery heat-sealing heating plate temperature adjusting structure and temperature control system thereof

Abstract

The invention discloses a storage battery heat-seal heating plate temperature adjusting structure and a temperature control system thereof, and relates to the technical field of storage batteries, the storage battery heat-seal heating plate temperature adjusting structure comprises a mother board, an upper heating plate and a lower heating plate; the device further comprises an adjustable heat transfer plate. The adjustable heat transfer plate comprises a transverse drawing plate and a longitudinal drawing plate; the two transverse pulling plates are arranged on the surface of the mother plate in parallel, and the two transverse pulling plates are pulled outwards to form a gap between the two transverse pulling plates. The number of the longitudinal drawing plates is two, the two longitudinal drawing plates are filled in a gap formed by the two transverse drawing plates, the outer edges of the two transverse drawing plates are flush with the outer edges of the two longitudinal drawing plates, and a central vacancy is defined by the two transverse drawing plates and the two longitudinal drawing plates. The temperature sensors are mounted on the upper heating plate and the lower heating plate; by means of the temperature control device, the temperature uniformity of the upper heating plate and the lower heating plate of the heat sealing machine can be well improved, and the consistency of viscous-state materials on the heat sealing combination faces of large covers and grooves of storage batteries heated and melted by the heating plates is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of storage batteries, and more particularly to a temperature regulating structure of a heat-sealing heating plate of a storage battery and a temperature control system thereof. Background Art

[0002] The heat sealing of battery shells mainly adopts the shell material heating melting-extrusion bonding method. The heat sealing quality directly affects the sealing quality of the battery. Poor heat sealing quality can easily lead to battery leakage and gas leakage, which can easily corrode the vehicle and affect the battery life.

[0003] The existing lead-acid battery heat sealing equipment is mainly a heat sealer, which works by heating and melting the heat-sealed joint surfaces of the battery cover and the slot with a heating plate at high temperature, and then extruding the hot-scalded battery cover and the slot, and maintaining the pressure for a certain period of time to complete the heat sealing of the battery shell.

[0004] Although the temperature uniformity of the motherboard of the battery heat sealer in the industry is relatively good, the heating plate is limited by the battery cover and slot structure, the hole structure designed at the terminal part of the heating plate, the different thickness of the upper and lower heating plates, and the influence of the environment when the heating plate is working. The heat dissipation on all sides is relatively fast, resulting in large differences in the temperature uniformity of the upper and lower heating plates of the heat sealer, the surroundings of the heating plate, the center of the heating plate, and the terminal parts. In particular, the temperature of the center of the heating plate is more than 30°C higher than the temperature of the terminal part of the heating plate, which seriously affects the consistency of the viscous flow material on the joint surface of the battery cover and slot heat sealing when heated by the heating plate, resulting in a certain impact on the stability of the battery heat sealing quality.

[0005] Therefore, how to improve the temperature uniformity of the upper and lower heating plates, the surrounding areas of the heating plates, the center of the heating plates, and the terminal parts of the heating plates of the heat sealing machine, and provide a new heating plate structure and system, is an urgent problem that technicians in this field need to solve. Summary of the invention

[0006] In view of this, the present invention provides a temperature regulating structure of a battery heat-sealing heating plate and a temperature control system thereof, aiming to solve the above-mentioned technical problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A battery heat-sealing heating plate temperature regulating structure, comprising: a motherboard, and an upper heating plate and a lower heating plate respectively arranged on the upper and lower surfaces of the motherboard; and further comprising: an adjustable heat transfer plate arranged between the motherboard and the upper heating plate and between the motherboard and the lower heating plate;

[0009] The adjustable heat transfer plate includes a transverse drawer plate and a longitudinal drawer plate; there are two transverse drawers, which are arranged in parallel on the surface of the mother plate, and the two transverse drawers are pulled outward to form a gap between them; there are two longitudinal drawers, and the two longitudinal drawers fill the gap formed by the two transverse drawers, and the outer edges of the two transverse drawers and the two longitudinal drawers are flush, and the distance between the two transverse drawers and the two longitudinal drawers after filling form a central space, and its overall surface area is larger than the corresponding upper heating plate and the lower heating plate.

[0010] Through the above technical scheme, the present invention adopts an adjustable heat transfer plate that can be assembled and adjusted, and uses horizontal and vertical pull-out plates to adjust the temperature of the center and the surrounding areas of the heating plate. After the horizontal pull-out plate is pulled a certain distance, the gap is filled with a longitudinal push plate of suitable size. The two horizontal pull-out plates are pulled outward to form a gap, and extend a certain distance outward relative to the heating plate. The two longitudinal pull-out plates fill the gap formed by the two horizontal pull-out plates, and at the same time extend the same distance outward relative to the heating plate. The outward extended parts of the horizontal and vertical pull-out plates absorb the heat of the mother plate of the heating plate and transfer it to the surrounding areas of the heating plate to compensate for the environmental heat dissipation around the heating plate. The central empty space reduces the heat transfer of the mother plate to the center of the heating plate, reduces the central temperature of the heating plate, ensures the size of the surrounding areas of the heating plate and the size of the central empty space, and makes the temperature of the upper heating plate and the lower heating plate uniform.

[0011] Preferably, in the above-mentioned temperature regulating structure of the heat-sealed heating plate of a battery, the two transverse drawer plates located between the mother plate and the upper heating plate have an extended plate surface, and the extended plate surface is located at a position corresponding to the lead pipe portion of the upper heating plate. In terms of design structure, the extended plate surface has more extended plate surface relative to the rest of the transverse drawer plate. The terminal portions of the two transverse drawer plates have a special structure, and the extended portion pulled outward relative to the adjustable heat transfer plate absorbs more heat from the mother plate and transfers it to the terminal portion of the heating plate, thereby compensating for the greater temperature loss at the terminal portion of the heating plate. More extended plate surfaces are used to collect more heat from the mother plate and transfer it to the lead pipe portion of the upper heating plate, thereby offsetting the severe temperature drop caused by environmental heat dissipation in this portion.

[0012] Preferably, in the above-mentioned battery heat-sealing heating plate temperature regulating structure, the transverse drawer plate is connected to the mother plate by bolts, and the upper heating plate and the lower heating plate are both connected to the corresponding transverse drawer plate by bolts.

[0013] The present invention also provides a battery heat-sealing heating plate temperature control system, comprising the battery heat-sealing heating plate temperature regulating structure; and further comprising:

[0014] A temperature sensor, wherein the temperature sensor is mounted on the upper heating plate and the lower heating plate;

[0015] A temperature control box, wherein a signal receiving port of the temperature control box is connected to a wire of the temperature sensor, and the temperature control box is used to receive a temperature acquisition signal and adjust the temperature of the upper heating plate and the lower heating plate.

[0016] Through the above technical scheme, the present invention provides a battery heat-sealing heating plate temperature control system, which improves the temperature uniformity of the upper and lower heating plates, the surrounding areas of the heating plates, the center of the heating plates, and the terminal parts of the heating plates of the heat-sealing machine, ensures the consistency of the viscous fluid material on the heat-sealing joint surface of the large cover and the groove of the battery heated by the heating plate, and improves the stability of the heat-sealing quality of the battery.

[0017] Preferably, in the above-mentioned battery heat sealing heating plate temperature control system, three temperature sensors are installed on the upper heating plate and the lower heating plate, respectively, on the left, middle and right sides, to monitor the temperature uniformity of the heating plates.

[0018] Preferably, in the above-mentioned battery heat sealing heating plate temperature control system, the length of the temperature sensor located on the upper heating plate is 1 / 2 of the width of the upper heating plate, and the length of the temperature sensor located on the lower heating plate is 1 / 2 of the width of the lower heating plate.

[0019] Preferably, in the above-mentioned battery heat sealing heating plate temperature control system, a group of opposite sides of the lower heating plate are provided with a plurality of through blowing channels, and the blowing channels are evenly distributed above the temperature sensor on the lower heating plate. The blowing channels are used to adjust the temperature of the left, middle and right zones of the lower heating plate respectively.

[0020] Preferably, in the above-mentioned battery heat sealing heating plate temperature control system, the number of the blowing channels is six, and they are divided into three groups corresponding to the three temperature sensors on the lower heating plate. The six blowing channels run through the entire lower heating plate longitudinally, and the blown gas is kept in the heat sealing machine, which can compensate for the ambient temperature of the upper and lower heating plates.

[0021] Preferably, in the above-mentioned battery heat-sealing heating plate temperature control system, each group of the blowing channels is connected to a control valve via an air pipe, and the three control valves are connected to an air compression pump via an air pipe.

[0022] Preferably, in the above-mentioned battery heat sealing heating plate temperature control system, the temperature control box has a temperature display meter and a temperature controller, the temperature display meter is electrically connected to the temperature sensor on the upper heating plate, and the temperature controller is electrically connected to the temperature sensor on the lower heating plate and the control valve.

[0023] It can be seen from the above technical scheme that compared with the prior art, the present invention discloses a temperature adjustment structure of a battery heat-sealing heating plate and a temperature control system thereof, which can greatly improve the temperature uniformity of the upper and lower heating plates of the heat-sealing machine, ensure the consistency of the viscous fluid material on the heat-sealing joint surface of the battery cover and the groove heated by the heating plate, improve the stability of the battery heat-sealing quality, reduce liquid and gas leakage in the battery, increase the battery life, and prevent the battery electrolyte from corroding the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 The accompanying drawing is a schematic structural diagram of a temperature regulating structure of a heat-sealing heating plate of a battery provided by the present invention;

[0026] Figure 2 The accompanying drawing is a top view of the upper heating plate and the adjustable heat transfer plate combination provided by the present invention;

[0027] Figure 3 The accompanying drawing is a bottom view of the upper heating plate and the adjustable heat transfer plate combination provided by the present invention;

[0028] Figure 4 The accompanying drawing is a bottom view of the combination of the lower heating plate and the adjustable heat transfer plate provided by the present invention;

[0029] Figure 5 The accompanying drawing is a top view of the combination of the lower heating plate and the adjustable heat transfer plate provided by the present invention;

[0030] Figure 6 The accompanying drawing is a schematic structural diagram of a temperature control system for a battery heat-sealing heating plate provided by the present invention.

[0031] in:

[0032] 1- Motherboard;

[0033] 2-Upper heating plate;

[0034] 3-Lower heating plate;

[0035] 31-air blowing channel;

[0036] 4-Adjustable heat transfer plate;

[0037] 41- horizontal draw plate; 42- vertical draw plate; 43- center space; 44- extended plate surface;

[0038] 5- Temperature sensor;

[0039] 6- Temperature control box;

[0040] 61-temperature display; 62-temperature controller;

[0041] 7-Control valve;

[0042] 8-Compressed air pump. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See attached Figure 1 To Attachment Figure 6 The embodiment of the present invention discloses a battery heat sealing heating plate temperature control system, comprising: a motherboard 1, and an upper heating plate 2 and a lower heating plate 3 respectively arranged on the upper and lower surfaces of the motherboard 1; and further comprising:

[0045] An adjustable heat transfer plate 4 is arranged between the motherboard 1 and the upper heating plate 2 and between the motherboard 1 and the lower heating plate 3; the adjustable heat transfer plate 4 includes a transverse drawer plate 41 and a longitudinal drawer plate 42; there are two transverse drawers 41, which are arranged in parallel on the surface of the motherboard 1, and the two transverse drawers 41 are pulled outward to form a gap between them; there are two longitudinal drawers 42, and the two longitudinal drawers 42 fill the gap formed by the two transverse drawers 41, and the outer edges of the two transverse drawers 41 and the two longitudinal drawers 42 are flush, and the distance between the two transverse drawers 41 and the two longitudinal drawers 42 are filled to form a central space 43, and its overall surface area is larger than the corresponding upper heating plate 2 and lower heating plate 3;

[0046] Temperature sensor 5, the temperature sensor 5 is installed on the upper heating plate 2 and the lower heating plate 3;

[0047] The temperature control box 6 has a signal receiving port connected to the wire of the temperature sensor 5 . The temperature control box 6 is used to receive the temperature acquisition signal and adjust the temperature of the upper heating plate 2 and the lower heating plate 3 .

[0048] In this embodiment, the upper heating plate 2 is installed on the motherboard 1 to heat-melt the heat-sealed joint surface of the battery cover; the lower heating plate 3 is installed under the motherboard 1 to heat-melt the heat-sealed joint surface of the battery slot.

[0049] In order to further optimize the above technical solution, the two transverse drawers 41 located between the motherboard 1 and the upper heating plate 2 have an extended plate surface 44, and the extended plate surface 44 is located at a position corresponding to the lead pipe part of the upper heating plate 2. In this embodiment, the transverse drawer 41 is designed with a temperature collection extended edge at the lead pipe part to form an extended plate surface 44, and the length and width dimensions are 2 cm each increased on the basis of the length and width of the structural dimensions of the lead pipe part of the transverse drawer 41. In addition, due to the thick thickness of the lower heating plate 3, the temperature difference between the pole part and the temperature of the rest of the parts is small, and no separate extension structure is designed.

[0050] In this embodiment, the thickness of the longitudinal push plate 42 is the same as that of the transverse draw plate 41, and the length and width are designed to be different sizes to fill the pulling distance of the transverse draw plate 41. The filling is completed to ensure that the adjustable heat transfer plate 4 is flush on all sides.

[0051] In order to further optimize the above technical solution, the transverse drawer plate 41 is connected to the motherboard 1 by bolts, and the upper heating plate 2 and the lower heating plate 3 are both connected to the corresponding transverse drawer plate 41 by bolts.

[0052] In order to further optimize the above technical solution, three temperature sensors 5 are installed on the upper heating plate 2 and the lower heating plate 3, respectively, on the left, middle and right sides.

[0053] In order to further optimize the above technical solution, the length of the temperature sensor 5 located on the upper heating plate 2 is 1 / 2 of the width of the upper heating plate 2 , and the length of the temperature sensor 5 located on the lower heating plate 3 is 1 / 2 of the width of the lower heating plate 3 .

[0054] In order to further optimize the above technical solution, a group of opposite sides of the lower heating plate 3 are provided with a plurality of through blowing channels 31 , and the blowing channels 31 are evenly distributed above the temperature sensor 5 on the lower heating plate 3 .

[0055] In order to further optimize the above technical solution, the number of the blowing channels 31 is six and they are divided into three groups corresponding to the three temperature sensors 5 on the lower heating plate 3 respectively.

[0056] In order to further optimize the above technical solution, each group of blowing channels 31 is connected to a control valve 7 via an air pipe, and the three control valves 7 are connected to an air compression pump 8 via an air pipe.

[0057] In order to further optimize the above technical solution, the temperature control box 6 has a temperature display meter 61 and a temperature controller 62. The temperature display meter 61 is electrically connected to the temperature sensor 5 on the upper heating plate 2, and the temperature controller 62 is electrically connected to the temperature sensor 5 and the control valve 7 on the lower heating plate 3.

[0058] In this embodiment, the temperature display meter 61 is connected to the temperature sensor 5 on the upper heating plate 2, and displays the temperature of the left, middle and right zones of the upper heating plate 2 in real time. When the temperature extreme difference between the left, middle and right zones is greater than 15°C, the battery heat sealing is stopped, the cause is immediately checked, and the temperature of the upper heating plate 2 is adjusted in time to ensure the temperature uniformity of the upper heating plate of the battery heat sealing.

[0059] The temperature controller 62 is connected to the temperature sensor 5 on the lower heating plate 3 to control the temperature of the left, middle and right zones of the lower heating plate 3 in real time. When the displayed temperature differs from the set temperature by A±7.5°C, the heating plate cooling measure is turned on.

[0060] The temperature controller 62 sets the temperature to the average temperature of the left, middle and right zones displayed by the upper heating plate 2. The set temperature of the left, middle and right zones can also be adjusted according to the actual value measured by the lower heating plate 3. In short, the temperature uniformity of the upper and lower heating plates is ensured.

[0061] The control valve 7 is respectively connected to the air compression pump 8 and the blowing channels 31 of the left, middle and right zones of the lower heating plate 3, and is also connected to the temperature controller 62. When the displayed temperature of any one of the left, middle and right zones differs from the set temperature by more than A±7.5°C, the control valve 7 of the corresponding zone is turned on or off.

[0062] The method for adjusting the temperature uniformity of the upper heating plate 2 and the lower heating plate 3 provided in this embodiment is:

[0063] 1. Install the upper heating plate 2 and the lower heating plate 3 on the heat sealing machine motherboard 1 respectively. After the installation is completed, the motherboard 1 is turned on for heating.

[0064] 2. Install the upper heating plate 2: first install the adjustable heat transfer plate 4, and the horizontal drawer plate 41 and the longitudinal drawer plate 42 corresponding to the upper heating plate 2 are in a combined state. Then install the upper heating plate 2, and at the same time install the temperature sensor 5, and connect it to the temperature display meter 61 of the temperature control box 6.

[0065] 3. Install the lower heating plate 3: first install the adjustable heat transfer plate 4, and the horizontal drawer plate 41 and the longitudinal drawer plate 42 corresponding to the lower heating plate 3 are in a combined state. Then install the lower heating plate 3, and at the same time install the temperature sensor 5, and connect it to the temperature controller 62 of the temperature control box 6.

[0066] 4. The lower heating plate 3 is provided with an air blowing channel 31 , which is connected to the air compression pump 8 through a pipeline. The connected pipeline is provided with a control valve 7 , and the control valve 7 is also connected to the temperature controller 62 of the temperature control box 6 .

[0067] 5. After installation, turn on the heating of motherboard 1. Set the temperature A of heat sealer motherboard 1 according to the heat sealing process requirement A±7.5℃. When the displayed temperature and the set temperature meet A±7.5℃, adjust the temperature uniformity of the upper and lower heating plates.

[0068] Methods for adjusting the temperature uniformity of the upper heating plate:

[0069] 1. Check the temperature of the upper heating plate 2: Check the temperature of the upper heating plate 2 on the temperature display 61 of the left, middle and right zones of the temperature control box 6. When the temperature of the middle zone of the upper heating plate 2 is higher and exceeds the process requirement of A±7.5℃, adjust the adjustable heat transfer plate 4 corresponding to the upper heating plate 2.

[0070] 2. Adjust the adjustable heat transfer plate 4: Loosen the fixing screws of the upper heating plate 2, and pull out the horizontal draw plate 41 by a distance of 2cm, 4cm, 6cm, 8cm, etc., and the adjustable heat transfer plate has a corresponding horizontal extension relative to the heating plate. Fill in the longitudinal draw plates 42 of different sizes. The length and width of the longitudinal draw plates 42 are respectively (2cm, 8cm), (4cm, 7cm), (6cm, 6cm), (8cm, 5cm), and the thickness is the same as that of the horizontal draw plate 41. The longitudinal extension of the adjustable heat transfer plate relative to the heating plate is consistent with the horizontal extension.

[0071] 3. According to the display results of the temperature display table 61 of the left, middle and right zones of the upper heating plate 2, determine the distance of the horizontal draw plate 41 and the length and width of the longitudinal draw plate 42 to fill, and ensure that the temperature difference between the left, middle and right zones of the upper heating plate 2 is within the range of A±7.5℃.

[0072] Method to adjust the temperature uniformity of the lower heating plate:

[0073] 1. Check the temperature of the lower heating plate 3: Check the temperature of the lower heating plate 3 of the temperature controllers 62 of the left, middle and right zones of the temperature control box 6. If the temperature of the middle zone of the lower heating plate 3 is higher and the temperature difference with the left and right zones exceeds 7.5°C, adjust the adjustable heat transfer plate 4 corresponding to the lower heating plate 3.

[0074] 2. Adjust the adjustable heat transfer plate 4: Loosen the fixing screws of the lower heating plate 3, and pull out the horizontal draw plate 41 at a distance of 2cm, 4cm, 6cm, 8cm, etc., and the adjustable heat transfer plate has a corresponding horizontal extension relative to the heating plate. Fill in the longitudinal draw plates 42 of different sizes. The length and width of the longitudinal draw plates 42 are respectively (2cm, 8cm), (4cm, 7cm), (6cm, 6cm), (8cm, 5cm), and the thickness is the same as that of the horizontal draw plate 41. The longitudinal extension of the adjustable heat transfer plate relative to the heating plate is consistent with the horizontal extension.

[0075] 3. According to the display results of the temperature controller 62 of the left, middle and right zones of the lower heating plate 3, determine the distance of the horizontal draw plate 41 and the length and width of the longitudinal draw plate 42 to fill, and ensure that the temperature difference between the left, middle and right zones of the lower heating plate 3 is within 7.5°C.

[0076] Typical cases of adjusting the upper and lower heating plates:

[0077] 1. According to the temperature display results of the upper heating plate 2 and the lower heating plate 3, the distance between the two horizontal draw plates 41 is 2 cm, and the length and width of the longitudinal draw plates 42 are 8 cm and 2 cm; the distance between the horizontal draw plates 41 is 4 cm, and the length and width of the longitudinal draw plates 42 are 7 cm and 4 cm.

[0078] 2. Temperature display results of upper heating plate 2 and lower heating plate 3: The left, middle and right temperatures of upper heating plate 2 are A-3℃, A℃ and A-5℃ respectively, which meet the A±7.5℃ requirement of heat sealing process. The left, middle and right temperatures of lower heating plate 3 are A﹢8℃, A﹢10℃ and A﹢5℃ respectively, which do not meet the A±7.5℃ requirement of heat sealing process.

[0079] Temperature setting and temperature control method:

[0080] Lower heating plate 3 temperature setting:

[0081] Set the temperature of the left, middle and right zones of the lower heating plate 3 of the temperature controller 62 to A.

[0082] Lower heating plate 3 temperature control:

[0083] 1. According to the difference between the displayed temperature of the lower heating plate 3 and the set temperature, start and stop the cooling measures of the lower heating plate.

[0084] 2. When the temperature of the lower heating plate 3 exceeds A+5°C, the temperature sensor 5 of the lower heating plate 3 transmits the model to the temperature controller 62, and then the temperature controller 62 transmits a signal to open the control valve 7, and the air compressor 8 blows air to the lower heating plate 3 to reduce the temperature of the lower top heating plate.

[0085] 3. When the temperature of the lower heating plate 3 is lower than A-5°C, the temperature sensor 5 transmits the model to the temperature controller 62, and then the temperature controller 62 transmits a signal to close the control valve 7, and the air compressor 8 stops blowing air to the lower heating plate 3, thereby increasing the temperature of the lower heating plate 3.

[0086] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0087] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature regulating structure for a battery heat-sealing heating plate, comprising: A motherboard (1), and an upper heating plate (2) and a lower heating plate (3) respectively arranged on the upper and lower surfaces of the motherboard (1); characterized in that it also includes: an adjustable heat transfer plate (4) arranged between the motherboard (1) and the upper heating plate (2) and between the motherboard (1) and the lower heating plate (3); The adjustable heat transfer plate (4) comprises a transverse drawer plate (41) and a longitudinal drawer plate (42); the number of the transverse drawer plates (41) is two and they are arranged in parallel on the surface of the mother plate (1); the two transverse drawer plates (41) are pulled outward to form a gap between them; the number of the longitudinal drawer plates (42) is two and the two longitudinal drawer plates (42) fill the gap formed by the two transverse drawer plates (41); the outer edges of the two transverse drawer plates (41) and the two longitudinal drawer plates (42) are flush; the distance between the two transverse drawer plates (41) and the distance between the two longitudinal drawer plates (42) and the gap formed by the two longitudinal drawer plates (42) form a central space (43); and the overall surface area thereof is larger than that of the corresponding upper heating plate (2) and the lower heating plate (3).

2. A battery heat sealing heating plate temperature regulating structure according to claim 1, characterized in that: The two transverse drawer plates (41) located between the mother plate (1) and the upper heating plate (2) have an extended plate surface (44), and the extended plate surface (44) is located at a position corresponding to the lead pipe portion of the upper heating plate (2).

3. A battery heat sealing heating plate temperature regulating structure according to claim 1, characterized in that: The transverse drawer plate (41) is connected to the motherboard (1) via bolts, and the upper heating plate (2) and the lower heating plate (3) are both connected to the corresponding transverse drawer plate (41) via bolts.

4. A battery heat sealing heating plate temperature control system, characterized in that: The battery heat sealing heating plate temperature regulating structure according to any one of claims 1 to 3; and further comprising: A temperature sensor (5), wherein the temperature sensor (5) is mounted on the upper heating plate (2) and the lower heating plate (3); A temperature control box (6), wherein a signal receiving port of the temperature control box (6) is connected to a wire of the temperature sensor (5), and the temperature control box (6) is used to receive a temperature acquisition signal and adjust the temperature of the upper heating plate (2) and the lower heating plate (3).

5. A battery heat sealing heating plate temperature control system according to claim 4, characterized in that: The upper heating plate (2) and the lower heating plate (3) are each equipped with three temperature sensors, one on the left, the other in the middle and the other on the right.

6. A battery heat sealing heating plate temperature control system according to claim 4, characterized in that: The length of the temperature sensor (5) located on the upper heating plate (2) is 1 / 2 of the width of the upper heating plate (2), and the length of the temperature sensor (5) located on the lower heating plate (3) is 1 / 2 of the width of the lower heating plate (3).

7. A battery heat sealing heating plate temperature control system according to claim 5 or 6, characterized in that: A plurality of through-going air blowing channels (31) are provided on a group of opposite side edges of the lower heating plate (3), and the air blowing channels (31) are evenly distributed above the temperature sensor (5) on the lower heating plate (3).

8. A battery heat sealing heating plate temperature control system according to claim 7, characterized in that: The number of the blowing channels (31) is six, and they are divided into three groups corresponding to the three temperature sensors (5) on the lower heating plate (3).

9. A battery heat sealing heating plate temperature control system according to claim 8, characterized in that: Each group of the blowing channels (31) is connected to a control valve (7) via an air pipe, and the three control valves (7) are connected to an air compression pump (8) via an air pipe.

10. A battery heat sealing heating plate temperature control system according to claim 9, characterized in that: The temperature control box (6) comprises a temperature display meter (61) and a temperature controller (62); the temperature display meter (61) is electrically connected to the temperature sensor (5) on the upper heating plate (2); and the temperature controller (62) is electrically connected to the temperature sensor (5) on the lower heating plate (3) and the control valve (7).

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