Low-temperature energy storage battery with self-heating function

Abstract

The invention relates to the technical field of energy storage batteries, in particular to a low-temperature energy storage battery with a self-heating function, which comprises a bottom plate and a battery body arranged on the bottom plate, a heating film is arranged on one side of the battery body; the bottom plate is provided with guide seats at the two ends of the battery body; a first accommodating groove and a second accommodating groove are formed in one end of the guide seat; a first conducting strip in contact with the battery body is telescopically and movably arranged in the first accommodating groove; a second conducting strip in contact with the heating film is telescopically and movably arranged in the second accommodating groove; the device further comprises a switching mechanism and a triggering mechanism. By arranging the heating film, the switching mechanism and the triggering mechanism, electronic elements such as a temperature sensor and the like do not need to be adopted, a pure physical structure is adopted to preheat the battery body before charging, and then the temperature of the battery body is maintained through heat dissipated in the charging process of the battery body, so that the purpose of protecting the battery material is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage batteries, and in particular to a low-temperature energy storage battery with a self-heating function. Background Art

[0002] With the rapid development of new energy technologies, energy storage batteries have been widely used in electric vehicles, renewable energy storage, and mobile devices. At present, traditional lithium-ion batteries are one of the main types of energy storage batteries. However, in practical applications, traditional lithium-ion batteries have many problems in low temperature environments.

[0003] In a low-temperature environment, when traditional lithium-ion batteries are charged directly without preheating, the deposition of lithium ions on the negative electrode surface is prone to form lithium dendrites. The formation of such lithium dendrites will cause irreversible capacity loss and seriously affect the energy storage performance of the battery. At the same time, the presence of lithium dendrites may also cause internal short circuits, posing great safety hazards to the battery, and may even cause dangerous situations such as fire and explosion.

[0004] In addition, forced charging under low temperature conditions will accelerate the aging of battery materials. This greatly shortens the battery life and increases the user's cost of use. Not only that, frequent battery replacement will also put a certain amount of pressure on the environment and does not meet the requirements of sustainable development. Summary of the invention

[0005] The purpose of the present invention is to provide a low-temperature energy storage battery with a self-heating function in view of the above-mentioned deficiencies in the prior art.

[0006] The object of the present invention is achieved through the following technical solutions: A low-temperature energy storage battery with self-heating function, comprising a bottom plate and a battery body arranged on the bottom plate; a heating film is arranged on one side of the battery body; the bottom plate is provided with guide seats at both ends of the battery body; a first accommodating groove and a second accommodating groove are arranged at one end of the guide seat; the first accommodating groove is telescopically provided with a first conductive sheet for contacting the battery body; the second accommodating groove is telescopically provided with a second conductive sheet for contacting the heating film; The low-temperature energy storage battery with self-heating function also includes a switching mechanism for pushing the first conductive sheet to contact with the battery body or pushing the second conductive sheet to contact with the heating film; The low-temperature energy storage battery with self-heating function also includes a trigger mechanism for driving the switching mechanism to work.

[0007] The present invention is further configured such that the first receiving groove is provided with a first guide post; the first conductive sheet is slidably provided on the first guide post; a first guide spring is provided between the first guide post and the first conductive sheet; the first guide spring is used to receive the first conductive sheet in the first receiving groove; The second receiving groove is provided with a second guide post; the second conductive sheet is slidably provided on the second guide post; a second guide spring is provided between the second guide post and the second conductive sheet; the second guide spring is used to receive the second conductive sheet in the second receiving groove.

[0008] The present invention is further configured such that both ends of the battery body are provided with conductive terminals for contacting the first conductive sheet; and both ends of the heating film are provided with conductive arms for contacting the second conductive sheet.

[0009] The present invention is further configured such that the switching mechanism comprises a guide groove provided on the guide seat, a sliding seat movably provided on the bottom plate for lifting, and a switching pin movably provided on the sliding seat; the switching pin is movably provided on the guide groove.

[0010] The present invention is further configured that the guide groove includes a first vertical groove penetrating the guide seat, a second vertical groove penetrating the guide seat, a transverse groove penetrating the guide seat, an inclined groove arranged at the other end of the guide seat and a reversing groove arranged at the other end of the guide seat; the inclined groove is arranged between the top of the first vertical groove and the top of the second vertical groove; one end of the transverse groove is arranged at the bottom of the second vertical groove; the other end of the transverse groove is connected with the bottom of the first vertical groove through the reversing groove; the inclined groove is provided with a first guiding inclined surface for guiding the switching pin to move from the first vertical groove to the second vertical groove; the reversing groove is provided with a second guiding inclined surface for guiding the switching pin to move from the second vertical groove to the first vertical groove; the first vertical groove is connected with the first accommodating groove; the second vertical groove and the transverse groove are both connected with the second accommodating groove.

[0011] The present invention is further configured as follows: the sliding seat is provided with a strip-shaped limit groove along the horizontal direction; the strip-shaped limit groove is slidably provided with a limit block; a first switching spring is provided between the end of the strip-shaped limit groove close to the second vertical groove and the limit block; the switching pin is telescopically movably provided on the limit block; and a second switching spring is provided between the switching pin and the limit block.

[0012] The present invention is further configured such that the bottom plate is provided with a positioning seat; the positioning seat is provided with a strip-shaped positioning groove along the height direction; the sliding seat is provided with a positioning block; and the positioning block is movably arranged in the strip-shaped positioning groove.

[0013] The present invention is further configured such that the trigger mechanism comprises a threaded column arranged on the positioning seat and rotates along the height direction; the sliding seat is threadedly connected to the threaded column; and a reset spring is arranged between the bottom of the sliding seat and the bottom of the positioning seat.

[0014] The present invention is further configured such that the trigger mechanism also includes a trigger groove provided on the bottom plate, an expansion metal provided on the inner wall of the trigger groove, a trigger block telescopically and movably provided in the trigger groove, a movable groove provided on the bottom plate, and a movable block movably provided in the movable groove; one end of the trigger groove is connected to the movable groove; one end of the trigger block is connected to the expansion metal; the other end of the trigger block is telescopically and movably provided at one end of the trigger groove; and the other end of the trigger block is provided with a trigger inclined surface abutting against the movable block.

[0015] The present invention is further configured such that the trigger mechanism further comprises a storage wheel connected to the threaded column; a winding rope is wound around the storage wheel; and the winding rope is connected to the movable block.

[0016] Beneficial effects of the present invention: The present invention, by providing a heating film, a switching mechanism and a trigger mechanism, does not require the use of electronic components such as temperature sensors, and adopts a purely physical structure to preheat the battery body before charging, and then maintains the temperature of the battery body through the heat dissipated during the charging process of the battery body, so as to achieve the purpose of protecting the battery material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure when the second conductive sheet of the present invention is in contact with the heating film; Figure 2 This is a schematic diagram of the structure of the present invention after the battery body and the heating film are hidden; Figure 3 It is a schematic diagram of the structure of the battery body and the heating film of the present invention; Figure 4 It is the internal structure diagram of the bottom plate of the present invention; Figure 5 It is a schematic diagram of the structure when the first conductive sheet of the present invention is in contact with the battery body; Figure 6 This is a partial structural diagram of the present invention after the battery body and the heating film are hidden; Figure 7 This is a partial structural diagram of the present invention from another perspective after the battery body and the heating film are hidden; Figure 8 This is a partial cross-sectional view of the present invention after hiding the battery body and the heating film; Fig. 9 It is a partial cross-sectional view from another perspective after the battery body and the heating film are hidden in the present invention; Fig.10 It is a schematic diagram of the structure of the guide seat and the switching pin of the present invention; Fig.11 It is a structural schematic diagram of the cooperation between the guide seat and the switching pin of the present invention from another perspective; Wherein: 1, bottom plate; 2, battery body; 21, heating film; 22, conductive terminal; 23, conductive arm; 3, guide seat; 31, first accommodating groove; 32, second accommodating groove; 33, first conductive sheet; 34, second conductive sheet; 35, first guide column; 36, first guide spring; 37, second guide column; 38, second guide spring; 4, sliding seat; 41, strip-shaped limit groove; 42, limit block; 43, first switching spring; 44, switching pin; 45. Second switching spring; 46. Positioning block; 51. First vertical slot; 52. Second vertical slot; 53. Horizontal slot; 54. Reversing slot; 55. Inclined slot; 56. First guide slope; 57. Second guide slope; 6. Positioning seat; 61. Strip positioning slot; 62. Threaded column; 63. Return spring; 7. Trigger slot; 71. Expanded metal; 72. Trigger block; 73. Trigger slope; 8. Movable slot; 81. Movable block; 82. Storage wheel; 83. Winding rope. DETAILED DESCRIPTION

[0019] The present invention is further described in conjunction with the following examples.

[0020] Depend on Figures 1 to 11 It can be seen that the low-temperature energy storage battery with self-heating function described in this embodiment includes a bottom plate 1 and a battery body 2 arranged on the bottom plate 1; a heating film 21 is arranged on one side of the battery body 2; the bottom plate 1 is provided with a guide seat 3 at both ends of the battery body 2; one end of the guide seat 3 is provided with a first accommodating groove 31 and a second accommodating groove 32; the first accommodating groove 31 is telescopically provided with a first conductive sheet 33 for contacting the battery body 2; the second accommodating groove 32 is telescopically provided with a second conductive sheet 34 for contacting the heating film 21; wherein the first conductive sheet 33 and the second conductive sheet 34 are respectively connected to an external input power source; The low-temperature energy storage battery with self-heating function further includes a switching mechanism for pushing the first conductive sheet 33 to contact the battery body 2 or pushing the second conductive sheet 34 to contact the heating film 21; The low-temperature energy storage battery with self-heating function also includes a trigger mechanism for driving the switching mechanism to work.

[0021] Specifically, the low-temperature energy storage battery with self-heating function described in this embodiment, before charging the battery body 2, first the switching mechanism pushes the second conductive sheet 34 to contact with the heating film 21, and the first conductive sheet 33 is separated from the battery body 2. At this time, the external input power supplies power to the heating film 21, and the heating film 21 preheats the battery body 2. When the battery body 2 is heated to a predetermined temperature, the trigger mechanism drives the switching mechanism to work, so that the switching mechanism pushes the first conductive sheet 33 to contact with the battery body 2, and the second conductive sheet 34 is separated from the heating film 21, so that the external input power supplies power to the battery body 2, and the temperature of the battery body 2 is maintained by the heat dissipated during the charging process of the battery body 2, so as to achieve the purpose of protecting the battery material.

[0022] This embodiment provides a heating film 21, a switching mechanism and a trigger mechanism without using electronic components such as temperature sensors. A purely physical structure is used to preheat the battery body 2 before charging, and then the temperature of the battery body 2 is maintained by the heat dissipated during the charging process of the battery body 2, so as to achieve the purpose of protecting the battery material.

[0023] In the low-temperature energy storage battery with self-heating function described in this embodiment, the first receiving groove 31 is provided with a first guide column 35; the first conductive sheet 33 is slidably arranged on the first guide column 35; a first guide spring 36 is arranged between the first guide column 35 and the first conductive sheet 33; the first guide spring 36 is used to receive the first conductive sheet 33 in the first receiving groove 31; The second receiving groove 32 is provided with a second guide column 37 ; the second conductive sheet 34 is slidably provided on the second guide column 37 ; a second guide spring 38 is provided between the second guide column 37 and the second conductive sheet 34 ; the second guide spring 38 is used to receive the second conductive sheet 34 in the second receiving groove 32 .

[0024] Specifically, through the above-mentioned arrangement, in this embodiment, under the action of the first guide spring 36 and the second guide spring 38, the first conductive sheet 33 is received in the first receiving groove 31 and the second conductive sheet 34 is received in the second receiving groove 32. Only when the switching pin 44 contacts the first conductive sheet 33 or the second conductive sheet 34, the switching pin 44 pushes the first conductive sheet 33 to extend out of the first receiving groove 31 and contact the battery body 2, or the switching pin 44 pushes the second conductive sheet 34 to extend out of the second receiving groove 32 and contact the heating film 21.

[0025] In the low-temperature energy storage battery with self-heating function described in this embodiment, both ends of the battery body 2 are provided with conductive terminals 22 for contacting the first conductive sheet 33; both ends of the heating film 21 are provided with conductive arms 23 for contacting the second conductive sheet 34. The above arrangement facilitates the contact between the battery body 2 and the first conductive sheet 33; and also facilitates the contact between the heating film 21 and the second conductive sheet 34.

[0026] The present embodiment describes a low-temperature energy storage battery with a self-heating function, wherein the switching mechanism includes a guide groove provided on a guide seat 3, a sliding seat 4 movably provided on a bottom plate 1, and a switching pin 44 movably provided on the sliding seat 4; the switching pin 44 is movably provided on the guide groove. The present embodiment describes a low-temperature energy storage battery with a self-heating function, wherein the guide groove includes a first vertical groove 51 penetrating the guide seat 3, a second vertical groove 52 penetrating the guide seat 3, a transverse groove 53 penetrating the guide seat 3, an inclined groove 55 arranged at the other end of the guide seat 3, and a reversing groove 54 arranged at the other end of the guide seat 3; the inclined groove 55 is arranged between the top of the first vertical groove 51 and the top of the second vertical groove 52; one end of the transverse groove 53 is arranged at the bottom of the second vertical groove 52; the other end of the transverse groove 53 is connected with the bottom of the first vertical groove 51 through the reversing groove 54; the inclined groove 55 is provided with a first guiding inclined surface 56 for guiding the switching pin 44 to move from the first vertical groove 51 to the second vertical groove 52; the reversing groove 54 is provided with a second guiding inclined surface 57 for guiding the switching pin 44 to move from the second vertical groove 52 to the first vertical groove 51; the first vertical groove 51 is connected with the first accommodating groove 31; the second vertical groove 52 and the transverse groove 53 are both connected with the second accommodating groove 32. In the low-temperature energy storage battery with self-heating function described in this embodiment, the sliding seat 4 is provided with a strip-shaped limiting groove 41 in the horizontal direction; the strip-shaped limiting groove 41 is provided with a limiting block 42 for sliding; a first switching spring 43 is provided between the end of the strip-shaped limiting groove 41 close to the second vertical groove 52 and the limiting block 42; the switching pin 44 is telescopically provided on the limiting block 42; and a second switching spring 45 is provided between the switching pin 44 and the limiting block 42. The rigidity of the second switching spring 45 is greater than the rigidity of the first guide spring 36 and greater than the rigidity of the second guide spring 38.

[0027] Specifically, for the low-temperature energy storage battery with self-heating function described in this embodiment, before charging the battery body 2, the switching pin 44 is located at the top of the second vertical groove 52, so that the switching pin 44 pushes the second conductive sheet 34 out of the second accommodating groove 32 and makes the second conductive sheet 34 contact with the heating film 21. At this time, the external input power supplies power to the heating film 21 through the second conductive sheet 34, and the second conductive sheet 34 heats the battery body 2.

[0028] As the temperature of the battery body 2 gradually rises, the sliding seat 4 moves downward, thereby driving the switching pin 44 to move downward along the second vertical slot 52. When the temperature of the battery body 2 reaches the set value, the switching pin 44 moves to one end of the transverse slot 53. Under the action of the first switching spring 43 resetting, the limit block 42 is pushed to move along the strip limit slot 41, and at the same time, the switching pin 44 moves along the transverse slot 53, and enters the first vertical slot 51 after passing through the second guide inclined surface 57 of the reversing slot 54. Under the action of the second guide spring 38, the second conductive sheet 34 retracts into the second accommodating slot 32 again and separates the second conductive sheet 34 from the heating film 21, and the heating film 21 stops working at this time; in addition, the switching pin 44 in the first vertical slot 51 pushes the first conductive sheet 33 out of the first accommodating slot 31 and makes the first conductive sheet 33 contact with the battery body 2, so that the external input power supply supplies power to the battery body 2, and the temperature of the battery body 2 is maintained by the heat dissipated during the charging process of the battery body 2, so as to achieve the purpose of protecting the battery material.

[0029] In the low-temperature energy storage battery with self-heating function described in this embodiment, the bottom plate 1 is provided with a positioning seat 6; the positioning seat 6 is provided with a strip positioning groove 61 along the height direction; the sliding seat 4 is provided with a positioning block 46; the positioning block 46 is movably provided in the strip positioning groove 61. In the low-temperature energy storage battery with self-heating function described in this embodiment, the trigger mechanism includes a threaded column 62 rotatably provided on the positioning seat 6 along the height direction; the sliding seat 4 is threadedly connected to the threaded column 62; and a reset spring 63 is provided between the bottom of the sliding seat 4 and the bottom of the positioning seat 6. In the present embodiment, a low-temperature energy storage battery with a self-heating function is described, wherein the trigger mechanism further comprises a trigger slot 7 provided on the bottom plate 1, an expansion metal 71 provided on the inner wall of the trigger slot 7, a trigger block 72 which is telescopically provided on the trigger slot 7, an active slot 8 provided on the bottom plate 1, and an active block 81 which is movably provided on the active slot 8; one end of the trigger slot 7 is connected to the active slot 8; one end of the trigger block 72 is connected to the expansion metal 71; the other end of the trigger block 72 is telescopically provided on one end of the trigger slot 7; the other end of the trigger block 72 is provided with a trigger slope 73 which abuts against the active block 81; the trigger slot 7 is provided at the bottom of the battery body 2. In the present embodiment, a low-temperature energy storage battery with a self-heating function is described, wherein the trigger mechanism further comprises a storage wheel 82 connected to the threaded column 62; a winding rope 83 is wound around the storage wheel 82; the winding rope 83 is connected to the active block 81; wherein the expansion metal 71 may be aluminum metal, copper metal, or nickel-titanium alloy.

[0030] Specifically, in the low-temperature energy storage battery with self-heating function described in this embodiment, before charging the battery body 2, the trigger block 72 is received in the trigger slot 7, and the switching pin 44 is located at the top of the second vertical slot 52, so that the switching pin 44 pushes the second conductive sheet 34 out of the second receiving slot 32 and makes the second conductive sheet 34 contact with the heating film 21. At this time, the external input power supplies power to the heating film 21 through the second conductive sheet 34, and the second conductive sheet 34 heats the battery body 2.

[0031] As the temperature of the battery body 2 gradually rises, the volume of the expanded metal 71 increases, thereby gradually pushing the trigger block 72 out of the trigger slot 7, and under the action of the trigger slope 73, pushing the movable block 81 to move in the movable slot 8; during the movement of the movable block 81, the storage wheel 82 is pulled by the winding rope 83 to rotate, thereby driving the threaded column 62 to rotate, and because the sliding seat 4 is threadedly connected to the threaded column 62, and the sliding seat 4 is limited in height by the positioning block 46 and the positioning slot, when the threaded column 62 rotates, the sliding seat 4 is driven to move downward; thereby driving the switching pin 44 to move downward along the second vertical slot 52. When the temperature of the battery body 2 reaches the set value, the switching pin 44 moves to one end of the horizontal slot 53, and when the first switching spring 43 Under the action of resetting, the limit block 42 is pushed to move along the strip limit groove 41, and at the same time, the switching pin 44 is moved along the horizontal groove 53, and enters into the first vertical groove 51 after passing through the second guide slope 57 of the reversing groove 54. Under the action of the second guide spring 38, the second conductive sheet 34 is retracted into the second accommodating groove 32 again and the second conductive sheet 34 is separated from the heating film 21, and the heating film 21 stops working at this time; in addition, the switching pin 44 in the first vertical groove 51 pushes the first conductive sheet 33 out of the first accommodating groove 31 and makes the first conductive sheet 33 contact with the battery body 2, so that the external input power supply supplies power to the battery body 2, and the temperature of the battery body 2 is maintained by the heat dissipated by the battery body 2 during the charging process, so as to achieve the purpose of protecting the battery material.

[0032] After charging is completed, the temperature of the battery body 2 gradually decreases, so that the volume of the expanded metal 71 gradually decreases, thereby gradually driving the trigger block 72 to retract into the trigger slot 7, and under the action of the reset spring 63, the sliding seat 4 moves upward again, driving the threaded column 62 to rotate in the opposite direction, and rewinding the rope 83 into the reel 82 again. As the sliding seat 4 moves upward, the switching pin 44 passes through the first guide slope 56 of the inclined slot 55 and re-enters the top of the second vertical slot 52. Under the action of the first guide spring 36, the first conductive sheet 33 retracts into the first accommodating slot 31 and separates the first conductive sheet 33 from the battery body 2, and the battery body 2 stops charging; in addition, the switching pin 44 in the second vertical slot 52 pushes the second conductive sheet 34 out of the second accommodating slot 32 and makes the second conductive sheet 34 contact with the heating film 21, waiting for the next charging.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A low-temperature energy storage battery with self-heating function, characterized in that: The invention comprises a bottom plate and a battery body arranged on the bottom plate; a heating film is arranged on one side of the battery body; the bottom plate is provided with guide seats at both ends of the battery body; a first receiving groove and a second receiving groove are arranged at one end of the guide seat; the first receiving groove is telescopically provided with a first conductive sheet for contacting the battery body; the second receiving groove is telescopically provided with a second conductive sheet for contacting the heating film; The low-temperature energy storage battery with self-heating function also includes a switching mechanism for pushing the first conductive sheet to contact with the battery body or pushing the second conductive sheet to contact with the heating film; The low-temperature energy storage battery with self-heating function also includes a trigger mechanism for driving the switching mechanism to work.

2. A low-temperature energy storage battery with self-heating function according to claim 1, characterized in that: The first receiving groove is provided with a first guide post; the first conductive sheet is slidably provided on the first guide post; a first guide spring is provided between the first guide post and the first conductive sheet; the first guide spring is used to receive the first conductive sheet in the first receiving groove; The second receiving groove is provided with a second guide post; the second conductive sheet is slidably provided on the second guide post; a second guide spring is provided between the second guide post and the second conductive sheet; the second guide spring is used to receive the second conductive sheet in the second receiving groove.

3. A low-temperature energy storage battery with self-heating function according to claim 1, characterized in that: Both ends of the battery body are provided with conductive terminals for contacting the first conductive sheet; and both ends of the heating film are provided with conductive arms for contacting the second conductive sheet.

4. The low-temperature energy storage battery with self-heating function according to claim 1, characterized in that: The switching mechanism comprises a guide groove arranged on the guide seat, a sliding seat arranged on the bottom plate for lifting and movement, and a switching pin movably arranged on the sliding seat; the switching pin is movably arranged on the guide groove.

5. A low-temperature energy storage battery with self-heating function according to claim 4, characterized in that: The guide groove includes a first vertical groove penetrating through the guide seat, a second vertical groove penetrating through the guide seat, a transverse groove penetrating through the guide seat, an inclined groove arranged at the other end of the guide seat and a reversing groove arranged at the other end of the guide seat; the inclined groove is arranged between the top of the first vertical groove and the top of the second vertical groove; one end of the transverse groove is arranged at the bottom of the second vertical groove; the other end of the transverse groove is connected with the bottom of the first vertical groove through the reversing groove; the inclined groove is provided with a first guiding inclined surface for guiding the switching pin to move from the first vertical groove to the second vertical groove; the reversing groove is provided with a second guiding inclined surface for guiding the switching pin to move from the second vertical groove to the first vertical groove; the first vertical groove is connected with the first accommodating groove; the second vertical groove and the transverse groove are both connected with the second accommodating groove.

6. A low-temperature energy storage battery with self-heating function according to claim 5, characterized in that: The sliding seat is provided with a strip-shaped limit groove in the horizontal direction; a limit block is slidably provided in the strip-shaped limit groove; a first switching spring is provided between the end of the strip-shaped limit groove close to the second vertical groove and the limit block; the switching pin is telescopically arranged on the limit block; a second switching spring is provided between the switching pin and the limit block.

7. The low-temperature energy storage battery with self-heating function according to claim 4, characterized in that: The bottom plate is provided with a positioning seat; the positioning seat is provided with a strip-shaped positioning groove along the height direction; the sliding seat is provided with a positioning block; the positioning block is movably arranged in the strip-shaped positioning groove.

8. A low-temperature energy storage battery with self-heating function according to claim 7, characterized in that: The trigger mechanism comprises a threaded column arranged on the positioning seat and rotating along the height direction; the sliding seat is threadedly connected with the threaded column; a reset spring is arranged between the bottom of the sliding seat and the bottom of the positioning seat.

9. A low-temperature energy storage battery with self-heating function according to claim 8, characterized in that: The trigger mechanism also includes a trigger groove arranged on the bottom plate, an expansion metal arranged on the inner wall of the trigger groove, a trigger block which is telescopically and movably arranged in the trigger groove, a movable groove arranged on the bottom plate, and a movable block which is movably arranged in the movable groove; one end of the trigger groove is connected to the movable groove; one end of the trigger block is connected to the expansion metal; the other end of the trigger block is telescopically and movably arranged at one end of the trigger groove; the other end of the trigger block is provided with a trigger inclined surface which abuts against the movable block; the trigger groove is arranged at the bottom of the battery body.

10. The low-temperature energy storage battery with self-heating function according to claim 8, characterized in that: The trigger mechanism also includes a storage wheel connected to the threaded column; a winding rope is wound around the storage wheel; and the winding rope is connected to the movable block.

Images