Lithium battery binding post with temperature detection function

Abstract

The utility model relates to the technical field of lithium battery binding posts, and discloses a lithium battery binding post with a temperature detection function, which comprises a base and a connecting seat, the connecting seat is arranged on the top surface of the base; a rectangular groove is formed in the bottom surface of the base, a thermosensitive mounting hole is formed in one side of the groove in the bottom surface of the base, and a thermosensitive probe and a sealing glue layer for sealing the thermosensitive probe are arranged in the thermosensitive mounting hole; a battery cell connecting hole is upwards formed in the top surface of the groove; during actual use, the thermosensitive mounting hole is formed in the bottom surface of the base, and the thermosensitive probe is arranged in the thermosensitive mounting hole, so that the temperature of the binding post can be detected through the thermosensitive probe, and the thermosensitive probe can transmit the detected temperature to a BMS (Battery Management System) of a lithium battery, so that the lithium battery stops outputting a power supply, and the temperature is prevented from continuously rising.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery terminal technology, specifically to a lithium battery terminal with temperature detection. Background Technology

[0002] Lithium batteries have been widely used due to their advantages such as large capacity, small size, high energy density, high discharge rate, fast start-up, strong adaptability to high and low temperatures, and long life.

[0003] Compared to conventional lead-acid batteries, lithium batteries draw extremely high currents during instantaneous start-up and shutdown, ranging from 1000A to 2500A. During use, lithium batteries often require power to be supplied to external devices via terminals. Furthermore, the terminals and casing of lithium batteries are separate components, which can lead to poor internal or external contact during installation. Poor contact can cause the terminals to overheat, resulting in equipment malfunction, battery failure, and in more serious cases, potential safety hazards such as fires.

[0004] Existing lithium battery terminals only serve as power transfer points and cannot detect changes in ambient temperature. If the terminals are exposed to high current and high temperature environments for extended periods, they are prone to burning out. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present invention provides a lithium battery terminal with temperature detection. The technical problem to be solved is that the existing lithium battery terminals cannot detect the ambient temperature.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a lithium battery terminal with temperature detection, including a base and a connector; the connector is disposed on the top surface of the base;

[0007] The bottom surface of the base has a rectangular groove, and the two ends of the groove extend to the opposite two sides of the base.

[0008] A thermal mounting hole is provided on one side of the groove on the bottom surface of the base, and a thermal probe is provided in the thermal mounting hole; the thermal mounting hole is provided with a sealing adhesive layer to seal the thermal probe.

[0009] The top surface of the groove is provided with a cell connection hole, which extends to the connector.

[0010] The connector has a device connection hole at the end opposite to the base.

[0011] In one embodiment, the base has the same length and width.

[0012] In one embodiment, the connecting seat includes a first connecting seat, a second connecting seat, and a third connecting seat connected in sequence. The first and second connecting seats are both cylindrical, and the third connecting seat is frustum-shaped. The bottom surface of the first connecting seat is connected to the base. The bottom surface of the second connecting seat is concentrically arranged with the top surface of the first connecting seat, and the diameter of the bottom surface of the second connecting seat is smaller than the diameter of the top surface of the first connecting seat.

[0013] In one embodiment, the top circumference of the first connector is chamfered.

[0014] In one embodiment, the outer wall of the upper end of the third connecting seat is provided with an anti-slip mesh.

[0015] In one embodiment, the outer wall of the second connecting seat is threaded, and a locking nut is screwed onto the thread.

[0016] In one embodiment, the outer surface of the locking nut is circular, and the top surface of the locking nut is provided with at least one set of opposing clamping holes.

[0017] In one embodiment, the top surface of the locking nut is provided with two sets of opposing clamping holes, with each pair of adjacent clamping holes spaced 90° apart.

[0018] In one embodiment, the thermal probe is model NTC3435.

[0019] In one embodiment, the base and the connector are made of aluminum.

[0020] The advantages of this utility model compared with the prior art are:

[0021] Firstly, this utility model provides a thermal mounting hole on the bottom surface of the base and a thermal probe in the thermal mounting hole. The thermal probe can detect the temperature of the terminal block and transmit the detected temperature to the BMS of the lithium battery, causing the lithium battery to stop outputting power and prevent the temperature from rising continuously.

[0022] By making the outer side of the nut round and setting at least one set of opposing clamping holes on the top surface of the locking nut, the nut can be designed to prevent disassembly. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention in the embodiments;

[0024] Figure 2 This is a plan view of the present invention with the nut removed in the embodiment;

[0025] Figure 3 This is a schematic diagram of the bottom surface of the base in the embodiment;

[0026] Figure 4 This is a schematic diagram of the nut structure in the embodiment. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] like Figure 1-3 As shown, a lithium battery terminal with temperature detection includes a base 1 and a connector 2; the connector 2 is disposed on the top surface of the base 1.

[0029] Reference Figure 3 A rectangular groove 10 is provided on the bottom surface of the base 1, and the two ends of the groove 10 extend to the two opposite sides of the base 1.

[0030] A thermal mounting hole 12 is provided on one side of the groove 10 on the bottom surface of the base 1, and a thermal probe is provided in the thermal mounting hole 12; the thermal mounting hole 12 is provided with a sealing adhesive layer to seal the thermal probe.

[0031] The top surface of the groove 10 is provided with a battery cell connection hole 11, which extends to the connector 2.

[0032] The end of the connector 2 facing away from the base 1 has an inwardly opening device connection hole 6.

[0033] In practical use, this utility model provides a thermal mounting hole 12 on the bottom surface of the base 1, and a thermal probe is installed in the thermal mounting hole 12. The thermal probe is an NTC3435. In this way, the temperature of the terminal can be detected by the thermal probe, and the thermal probe can transmit the detected temperature to the BMS of the lithium battery, so that the lithium battery stops outputting power and avoids the temperature from rising continuously.

[0034] In this embodiment, the groove 10 is used to place the positive and negative flexible connecting pieces of the lithium battery end. After the positive and negative flexible connecting pieces are placed in the groove 10, the positive and negative flexible connecting pieces can be fixed on the base 1 by installing fixing bolts in the cell connection hole 11; the device connection hole 6 is used for the connection and fixation between the positive and negative terminals and the terminal blocks of the device end.

[0035] Specifically, in this embodiment, the base 1 has the same length and width. For example, the length and width of the base 1 are both 34.9 mm, and the thickness of the base 1 can be 5.1 mm. The length of the groove 10 can be 34.9 mm, the width of the groove 10 can be 16.7 mm, and the depth of the groove 10 can be 2.1 mm. The diameter of the battery cell connection hole 11 can be 6 mm, and the depth of the battery cell connection hole 11 can be 13 mm. The diameter of the device connection hole 6 is 8 mm, and the depth of the device connection hole 6 can be 16 mm. The thickness of the entire terminal block can be 37.1 mm.

[0036] Specifically, in this embodiment, the connecting seat 2 includes a first connecting seat 20, a second connecting seat, and a third connecting seat 21 connected in sequence. The first connecting seat 20 and the second connecting seat are both cylindrical, and the third connecting seat 21 is frustum-shaped. The bottom surface of the first connecting seat 20 is connected to the base 1. The bottom surface of the second connecting seat and the top surface of the first connecting seat 20 are arranged concentrically, and the diameter of the bottom surface of the second connecting seat is smaller than the diameter of the top surface of the first connecting seat 20.

[0037] In this embodiment, the overall height of the connecting seat 2 can be 32mm, the diameter of the first connecting seat 20 can be 24mm, the diameter of the second connecting seat can be 21.9mm, and the top surface diameter of the third connecting seat 21 can be 17mm or 16mm.

[0038] In this embodiment, the top surface of the first connecting seat 20 is chamfered. Additionally, as shown below... Figure 2 As shown, the upper outer wall of the third connecting seat 21 is provided with an anti-slip mesh 4. In actual use, the anti-slip mesh can play an anti-slip role. It should be noted that, for the purpose of distinguishing the display, Figure 1 The structure in the diagram does not include a label for anti-slip mesh 4.

[0039] In addition, in this embodiment, the outer wall of the second connector is provided with a thread 3, and a locking nut 5 is screwed onto the thread 3. In actual use, the terminal is passed through the lithium battery housing, and then the terminal is locked onto the housing by the locking nut 5.

[0040] In addition, in this embodiment, the outer surface of the locking nut 5 is circular, and the top surface of the locking nut 5 is provided with at least one set of opposing clamping holes 50. The diameter of the clamping hole 50 can be 3.1 mm, and the depth can be 2.0 mm. In actual use, by providing the clamping holes 50, corresponding tools must be used to remove the locking nut 5. Ordinary screwdrivers and needle-nose pliers cannot be inserted into the clamping holes 50 to remove the locking nut, thus achieving the anti-disassembly design of the locking nut 5.

[0041] In one embodiment, the top surface of the locking nut 5 is provided with two sets of opposing clamping holes 50, with each pair of adjacent clamping holes spaced 90° apart.

[0042] In addition, in this embodiment, in order to meet performance requirements and reduce costs, the base 1 and the connecting seat 2 are made of aluminum.

[0043] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A lithium battery terminal with temperature detection, characterized in that, It includes a base (1) and a connecting seat (2); the connecting seat (2) is disposed on the top surface of the base (1); The bottom surface of the base (1) is provided with a rectangular groove (10), and the two ends of the groove (10) extend to the opposite two sides of the base (1). A thermal mounting hole (12) is provided on the bottom surface of the base (1) on one side of the groove (10), and a thermal probe is provided in the thermal mounting hole; the thermal mounting hole is provided with a sealing adhesive layer to seal the thermal probe. The top surface of the groove (10) is provided with a battery cell connection hole (11), which extends to the connector (2); The connecting seat (2) has an inwardly opening device connection hole (6) at the end opposite to the base (1).

2. A lithium battery terminal with temperature detection according to claim 1, characterized in that, The base (1) has the same length and width.

3. A lithium battery terminal with temperature detection according to claim 1, characterized in that, The connecting seat (2) includes a first connecting seat (20), a second connecting seat and a third connecting seat (21) connected in sequence. The first connecting seat (20) and the second connecting seat are both cylindrical, and the third connecting seat (21) is frustum-shaped. The bottom surface of the first connecting seat (20) is connected to the base (1). The bottom surface of the second connecting seat and the top surface of the first connecting seat (20) are arranged concentrically, and the bottom diameter of the second connecting seat is smaller than the top diameter of the first connecting seat (20).

4. A lithium battery terminal with temperature detection according to claim 3, characterized in that, The top circumference of the first connecting seat (20) is chamfered.

5. A lithium battery terminal with temperature detection according to claim 3, characterized in that, The outer wall of the upper end of the third connecting seat (21) is provided with an anti-slip mesh (4).

6. A lithium battery terminal with temperature detection according to claim 5, characterized in that, The outer wall of the second connecting seat is provided with a thread (3), and a locking nut (5) is screwed onto the thread (3).

7. A lithium battery terminal with temperature detection according to claim 6, characterized in that, The outer surface of the locking nut (5) is round, and the top surface of the locking nut (5) is provided with at least one set of opposing clamping holes (50).

8. A lithium battery terminal with temperature detection according to claim 7, characterized in that, The top surface of the locking nut (5) is provided with two sets of opposing clamping holes (50), and each pair of adjacent clamping holes (50) are spaced 90° apart.

9. A lithium battery terminal with temperature detection according to claim 1, characterized in that, The thermal probe is model NTC3435.

10. A lithium battery terminal with temperature detection according to claim 1, characterized in that, The base (1) and the connecting seat (2) are made of aluminum.

Images