Battery module with improved assemblability and battery pack including the same

Abstract

A battery module according to the present application can include a battery cell assembly including a plurality of battery cells and a battery cell case in which the plurality of battery cells are accommodated, and a BMS assembly including a BMS circuit board, a BMS cover accommodating the BMS circuit board, and at least one temperature sensor module connected to the BMS circuit board and fixedly installed to a rear surface of the BMS cover, and the BMS assembly is disposed to be detachably installed to one side surface of the battery cell case, wherein, when the BMS assembly is installed to one side surface of the battery cell case, the temperature sensor module is disposed to be in contact with one battery cell of the plurality of battery cells.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a battery module, and more particularly, to a battery module having a stable and compact assembly structure of electrical / electronic components such as a temperature sensor.

[0002] This application claims priority to Korean Patent Application No. 10-2020-0100768, filed on August 11, 2020, in Korea, the disclosure of which is incorporated herein by reference. BACKGROUND

[0003] When a battery module including a plurality of secondary batteries is used, temperature control of the battery module can be very important. In particular, the battery module can be used in a high-temperature environment, for example, in summer, and the secondary batteries themselves can generate heat. In this case, when a plurality of batteries are densely arranged, the temperature of the secondary batteries can further increase. When the temperature is higher than an appropriate temperature, the performance of the secondary batteries can deteriorate, and in a serious case, there is a risk of explosion or fire. In contrast, when the temperature of the battery module is too low, the performance of the secondary batteries included in the battery module can deteriorate. Therefore, in order to prevent or prepare for the performance deterioration of the secondary batteries or dangerous situations, the battery module includes a temperature sensor therein to continuously monitor the temperature of the secondary batteries.

[0004] In addition, recent battery modules include a battery management system (BMS) for monitoring and managing the charge / discharge state of the secondary batteries, and a wire harness or a flexible printed circuit board (FPCB) as a device for sensing the voltage of each secondary battery and transmitting the voltage to the BMS, which can perform three-dimensional wiring and transmit a plurality of signals.

[0005] For example, as shown in FIG. 1, a conventional battery module has a structure in which a connector 2, a temperature sensor 3, and a voltage sensing terminal (not shown) are mounted on a wire harness or an FPCB 1 to connect each secondary battery cell 4, the temperature sensor 3, or the voltage sensing terminal, and a BMS 5. Figure 1

[0006] However, the wire harness has a disadvantage in that it is not easy to assemble and perform wiring in a narrow space, and the FPCB is easier to perform wiring than the wire harness, but the FPCB has disadvantages of low durability and low economic efficiency due to high cost.

[0007] In addition, many people point out that a structure in which a thin and small FPCB or wire harness is attached to a secondary battery cell has low durability against impact and vibration, and thus the sensing part can be separated or damaged.

[0008] ​Accordingly, there is a need for a battery module having a more stable and economical assembly structure of an electrical / electronic component such as a temperature sensor than existing structures. SUMMARY

[0009] Technical problem

[0010] The present disclosure is designed to solve the problems of the related art, and thus the present disclosure aims to provide a battery module having a stable and compact assembly structure of an electrical / electronic component such as a temperature sensor.

[0011] The technical problems to be solved by the present disclosure are not limited to the above-mentioned technical problems, and those of ordinary skill in the art will understand other technical problems from the following description.

[0012] Technical solution

[0013] In one aspect of the present disclosure, a battery module is provided, including: a battery assembly including a plurality of battery cells and a battery case in which the plurality of battery cells are accommodated; and a battery management system (BMS) assembly including a BMS circuit board, a BMS cover accommodating the BMS circuit board, and at least one temperature sensor module connected to the BMS circuit board and fixedly mounted on a rear surface of the BMS cover, the BMS assembly being mountably and detachably disposed on a side surface of the battery case, wherein, when the BMS assembly is mounted on the side surface of the battery case, the temperature sensor module is configured to contact one of the plurality of battery cells.

[0014] The battery cell can be a cylindrical battery cell, wherein a sensor connection hole is provided in the side surface of the battery case to access the temperature sensor module, and the temperature sensor module is configured to contact the battery cell through the sensor connection hole.

[0015] The BMS cover can include a main cover covering the side surface of the battery case and mounted on the battery case, wherein the BMS circuit board is attached to a front surface of the main cover, and the temperature sensor module is attached to a rear surface of the main cover.

[0016] The BMS cover can further include a front cover covering the BMS circuit board and attached to the front surface of the main cover.

[0017] The BMS assembly can further include a plurality of sensing terminals mounted on an upper end portion of the main cover, the plurality of sensing terminals being spaced apart from each other by a certain interval, and each sensing terminal having one end connected to the BMS circuit board.

[0018] The battery assembly can further include a plurality of sensing plates extending in parallel with each other from one end of the upper end portion of the battery case to the other end of the upper end portion of the battery case, wherein the plurality of battery cells below the plurality of sensing plates are electrically connected to the plurality of sensing plates at positions corresponding to the plurality of battery cells, and the ends of the plurality of sensing plates are connected to the plurality of sensing terminals, respectively.

[0019] The temperature sensor module can include a thermistor, a sensor wire extending from the thermistor and connected to the BMS circuit board, and a sensor case supporting the thermistor and forcibly fitted to the main cover.

[0020] The sensor case can include a front portion including a receiving groove into which the thermistor is inserted and an insertion plate inserted into a sensor insertion slot formed in the main cover, and a rear portion having a curved surface.

[0021] The temperature sensor module can further include a spacer formed of a compressed foam material and fitted around the insertion plate and disposed between the sensor case and the main cover.

[0022] The battery case can include a battery tray disposed such that each of the plurality of battery cells is inserted and erected, and a tray cover vertically coupled to the battery tray to fix and protect the plurality of battery cells, wherein a sensor connection hole is provided in the tray cover.

[0023] In another aspect of the present disclosure, a battery pack including the battery module is also provided.

[0024] Beneficial effects

[0025] According to one aspect of the present disclosure, a battery module having a stable and compact assembly structure of electrical / electronic components such as a temperature sensor can be provided.

[0026] Effects of the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a view showing an assembly structure of a temperature sensor, a sensing cable, and a battery management system (BMS) in a battery module according to the related art.

[0028] Figure 2 FIG. 2 is a perspective view showing a battery module according to an embodiment of the present disclosure.

[0029] Figure 3 FIG. 3 is a view showing a battery module according to another embodiment of the present disclosure, in which a battery management system (BMS) assembly is fitted to a main cover. Figure 2a view of a state in which the battery assembly of the battery module is detached.

[0030] Figure 4 is a view of a battery assembly viewed from a different direction. Figure 3

[0031] Figure 5 is a front view of a BMS assembly from which a front cover is removed, according to an embodiment of the disclosure.

[0032] Figure 6 is a rear view of a BMS assembly. Figure 5

[0033] Figure 7 is a view of elements of a temperature sensor module, according to an embodiment of the disclosure.

[0034] Figure 8 and Figure 9 is a view of an assembled structure of a temperature sensor module and a main cover, according to an embodiment of the disclosure.

[0035] Figure 10 is a top view of a BMS assembly, according to an embodiment of the disclosure.

[0036] Figure 11 is a partial cross-sectional view of a battery module, according to an embodiment of the disclosure, particularly illustrating an attachment structure between a temperature sensor module and a battery cell.

[0037] Figure 12 is a view of a connection structure between a BMS circuit board and a sensing terminal, according to an embodiment of the disclosure.

[0038] Figure 13 is a view of a connection structure between a sensing terminal and a metal plate, according to an embodiment of the disclosure. DETAILED DESCRIPTION

[0039] Hereinafter, preferred embodiments of the disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms used in the specification and the appended claims should not be construed as limited to general and dictionary meanings and should be interpreted based on the meanings and concepts corresponding to technical aspects of the disclosure on the basis of the principle that the inventor is allowed to define appropriate terms in order to best describe the disclosure.

[0040] Accordingly, the description set forth herein is merely illustrative of preferred embodiments of the disclosure and is not intended to limit the scope of the disclosure as there are several variations and modifications which can be made to the preferred embodiments described and the equivalents thereof without departing from the scope of the disclosure. ​​

[0041] Figure 2 is a perspective view illustrating a battery module according to an embodiment of the present disclosure. Figure 3 is a view illustrating a state in which a BMS assembly is detached from a battery assembly of Figure 2 . Figure 4 is a view illustrating a battery assembly of Figure 3 from a different direction.

[0042] Referring to Figures 2 to 4 , a battery module 10 according to an embodiment of the present disclosure includes a battery assembly 100 and a BMS assembly 200 which is mountably and detachably disposed on the battery assembly 100.

[0043] As described in detail below, since the battery module 10 according to the present disclosure has a structure in which a temperature sensor module 230 directly contacts battery cells 110 in a process of assembling the battery assembly 100 and the BMS assembly 200, the temperature sensing structure is very simple when compared with a battery module according to the related art, and does not require the use of a wire harness or an expensive flexible printed circuit board (FPCB) for mounting the temperature sensor, thereby greatly increasing economic efficiency.

[0044] The battery assembly 100 of the battery module 10 will be described first. The battery assembly 100 includes a plurality of battery cells 110 and a battery case 120 in which the plurality of battery cells 110 are accommodated.

[0045] The battery cell 110 applied to the battery module 10 of the present embodiment is a cylindrical battery cell 110 in which an electrode assembly is embedded in a metal can. The cylindrical battery cell 110 can include a battery can having a cylindrical shape and mainly made of a lightweight conductive metal material such as aluminum, a wound-type electrode assembly accommodated in the battery cell, and a cap assembly coupled to an upper portion of the battery can. The cap assembly is connected to a positive electrode tab of the electrode assembly and serves as a positive electrode terminal, and a lower end of the battery is connected to a negative electrode tab of the electrode assembly and serves as a negative electrode terminal.

[0046] The cylindrical battery cell 110 can be inserted into the battery case 120, and a metal plate (not shown) can be spot-welded to an upper end or a lower end of the cylindrical battery cell 110 in a predetermined pattern, such that the cylindrical battery cells 110 are connected in series and / or in parallel to each other.

[0047] However, the scope of the present disclosure should not be construed as being limited to the battery module 10 using the cylindrical battery cell 110. For example, the battery module 10 according to the present disclosure can include a prismatic battery cell 110 having a rectangular battery can shape instead of a cylindrical shape.

[0048] A battery case 120 for fixing and protecting the battery cells 110 can include a battery tray 121 and a tray cover 123.

[0049] The battery tray 121 can have a quadrilateral plate shape, can include sockets formed inside outer edges, and can be disposed such that lower end portions of the battery cells 110 are respectively inserted into the sockets to be erected. Also, the battery tray 121 can include fasteners 122 on the outer edges, and can be snap-fitted to the tray cover 123.

[0050] The tray cover 123 can include sockets into which upper end portions of the battery cells 110 can be inserted, and can be disposed in a box shape so as to cover the upper portions of the battery cells 110 and the battery tray 121.

[0051] The tray cover 123 according to the present embodiment further includes sensing plates 130 on upper end portions thereof. The sensing plates 130 can be spaced apart from each other by a certain interval (±Y-axis direction), and can extend parallel to each other (±X-axis direction) from one end of the upper end portions of the tray cover 123 to the other end of the upper end portions of the tray cover 123.

[0052] The battery cells 110 below the sensing plates 130 can be electrically connected to the sensing plates 130 located at positions corresponding to the battery cells 110. Referring to Figure 4 , the battery cells 110 can be arranged in the battery case 120 in first to twelfth columns in the Y-axis direction, the battery cells 110 in the same column can be connected in parallel, and the battery cells 110 in adjacent columns can be connected in series. One sensing plate 130 is located between adjacent columns of battery cells, and thus a total of 11 sensing plates 130 are arranged. The sensing plates 130 sense group voltages of series-connected portions of the battery cells 110.

[0053] The voltages sensed by the sensing plates 130 can be transmitted to the BMS circuit board 210 through sensing terminals 240 of the BMS assembly 200 described below.

[0054] Referring back to Figure 4 , the tray cover 123 further includes a sensor connection hole 125. The sensor connection hole 125 is a passage through which a temperature sensor module 230 can access the battery cells 110 located inside the battery case 120, and can be formed in a side surface of the tray cover 123 on which the BMS assembly 200 will be mounted.

[0055] Figure 5 is a front view illustrating the BMS assembly 200 from which the front cover 228 is removed, according to an embodiment of the present disclosure. Figure 6 is a rear view illustrating the BMS assembly 200 of Figure 5 . Figure 7is a view showing elements of the temperature sensor module 230 according to an embodiment of the disclosure. Figure 8 and Figure 9 is a view showing an assembled structure of the temperature sensor module 230 and the main cover 221 according to an embodiment of the disclosure.

[0056] Referring to Figures 5 to 9 , the BMS assembly 200 includes a BMS circuit board 210, a BMS cover 220, a plurality of temperature sensors 230, and a plurality of sensing terminals 240.

[0057] The BMS circuit board 210 is a component for diagnosing, estimating, and managing the state of the battery cells 110. The temperature sensor module 230, a voltage sensing component, a current sensor, etc. can be directly or indirectly connected to the BMS circuit board 210 to transmit signals such as the temperature, voltage, and current of the battery cells 110.

[0058] The BMS cover 220 of the present embodiment is a structure for protecting the BMS circuit board 210 from the outside and fixing the BMS circuit board 210 from moving, and includes a main cover 221 and a front cover 228.

[0059] The main cover 221 can support the BMS circuit board 210, can be installed and detached on the battery case 120, can serve as a place where the electrode terminals of the battery module 10, etc. can be assembled, and can be provided in a structure having a plate shape and an area large enough to cover the side surface of the battery case 120.

[0060] The positive electrode terminal T1 and the negative electrode terminal T2 of the battery module 10 and the BMS circuit board 210, the temperature sensor module 230, and the plurality of sensing terminals 240 can be installed on the main cover 221.

[0061] As shown in Figure 5 , the BMS circuit board 210 can be attached to the center of the front surface of the main cover 221. A bolt or hook fastening structure can be used to fix the BMS circuit board 210 to the main cover 221.

[0062] The front cover 228 can also be attached to the front surface of the main cover 221 on which the BMS circuit board 210 is installed to cover the front of the BMS circuit board 210, thereby protecting the front of the BMS circuit board 210 from the outside.

[0063] Referring to Figure 6 and Figure 7 , the temperature sensor module 230 is installed on the rear surface of the main cover 221 and includes a thermistor 231, a sensor wire 232, a sensor housing 233, and a spacer 234.

[0064] The thermistor 231 can be a positive temperature coefficient (PTC) thermistor whose resistance increases as temperature increases or a negative temperature coefficient (NTC) thermistor whose resistance decreases as temperature increases. It is known that the thermistor 231 functions as a sensor for converting a thermal signal into an electrical signal, and thus a detailed description of the thermistor 231 will be omitted.

[0065] The sensor line 232 is a portion for transmitting an electrical signal of the thermistor 231 to the BMS circuit board 210, and an end portion of the sensor line 232 can be soldered to the BMS circuit board 210.

[0066] The sensor housing 233 is a component that supports the thermistor 231 and is mountably disposed on the main cover 221. The sensor housing 233 includes a front portion including a receiving groove 233a into which the thermistor 231 can be inserted and an insertion plate 233b that can be inserted into the sensor insertion slot 223 formed in the main cover 221, and a rear portion having a curved surface.

[0067] As shown in FIGS. 1, 2, and 3, the sensor housing 233 is disposed on the main cover 221, and the thermistor 231 is disposed in the sensor housing 233. Figure 8 and Figure 9 As shown in FIGS. 1, 2, and 3, the sensor housing 233 is disposed on the main cover 221, and the thermistor 231 is disposed in the sensor housing 233.

[0068] The sensor insertion slot 223 can be sized such that, when the insertion plate 233b of the sensor housing 233 is inserted into the sensor insertion slot 223, the insertion plate 233b is tightly fitted and does not move, and the plate connector 225 can be sized such that the sensor line 232 is freely taken out and soldering on the BMS circuit board 210 is easily performed.

[0069] The spacer 234 can be further disposed on the front portion of the sensor housing 233. The spacer 234 can be fitted around the insertion plate 233b as a compression foam or a gasket and can be attached to the front portion of the sensor housing 233. The spacer 234 can be attached to the sensor housing 233 by using a double-sided tape. The double-sided tape can be disposed on both surfaces of the spacer 234.

[0070] When the insertion plate 233b of the temperature sensor module 230 is inserted into the sensor insertion slot 223 of the main cover 221, the spacer 234 can be located between the front surface of the sensor housing 233 and the rear surface of the main cover 221, and the spacer 234 can absorb an impact between components and can offset a spacing tolerance between the temperature sensor module 230 and the battery cell 110 while assembling the battery assembly 100 and the BMS assembly 200.

[0071] Next, a description will be made with reference toFigure 10 and Figure 11 and Figure 4 A structure of attachment between the temperature sensor module 230 and the battery cell 110 according to an embodiment of the disclosure is described.

[0072] According to the present embodiment, two temperature sensor modules 230 are installed on the rear surface of the main cover 221, one temperature sensor module on the left of the center of the main cover 221 and the other temperature sensor module on the right of the center of the main cover 221. Unlike the present embodiment, one or three or more temperature sensor modules 230 can be provided, or the positions of the temperature sensor modules 230 can be changed.

[0073] When the BMS assembly is viewed from the top as shown in Figure 10 , the sensor housing 233 of the temperature sensor module 230 on the rear surface of the main cover 221 is slightly protruded in the direction on which the BMS assembly 200 is installed on the battery assembly 100. In the side portion of the battery case 120 on which the main cover 221 is to be installed, in other words, in the side portion of the tray cover 123 to be covered by the main cover 221 (see Figure 4 ), the sensor connection hole 125 is formed at a position corresponding to the temperature sensor module 230.

[0074] Therefore, as shown in Figure 11 , when the main cover 221 is installed on the side portion of the battery case 120, the temperature sensor module 230 can be introduced into the battery case 120 through the sensor connection hole 125 of the tray cover 123, and the curved portion of the temperature sensor module 230 can contact and surround the outer peripheral surface of the cylindrical battery cell 110. When a thermally conductive adhesive is applied in advance to the curved surface of the temperature sensor module 230, the adhesion between the temperature sensor module 230 and the cylindrical battery cell 110 can be increased and the thermal contact resistance can be reduced.

[0075] As such, because the battery module 10 of the disclosure makes the temperature sensor module 230 contact the battery cell 110 without much effort in the process of assembling the BMS assembly 200 with the battery assembly 100, the assembly and installation of the temperature sensor are easier and the structure for assembling and installing the temperature sensor is simpler when compared with the battery module according to the prior art. In addition, since the temperature sensor module 230 according to the disclosure is installed as a mechanically firm coupling structure, the risk of the temperature sensor module 230 being damaged or separated from the battery cell 110 is small even if subjected to external force such as impact or vibration.

[0076] As shown in Figure 5 , Figure 10 and Figure 12As shown, the BMS assembly 200 further includes a plurality of sensing terminals 240. The plurality of sensing terminals 240 are mounted on the upper end portion of the main cover 221 and are spaced apart from each other by a certain interval. One end portion of each of the sensing terminals 240 can be connected to the BMS circuit board 210 by using welding or the like. For example, 11 sensing terminals 240_1, …, 240_11 can be arranged at almost regular intervals from the left end of the upper end portion of the main cover 221 to the right end of the upper end portion of the main cover 221, and one end portion of each of the sensing terminals 240_1, …, 240_11 can be inserted into the rear surface of the BMS circuit board 210 and fixedly welded from the front surface.

[0077] As shown, Figure 13 The plurality of sensing terminals 240_1, …, 240_11 can be connected to the end portions of the sensing plates 130_1, …, 130_11, which extend from one end of the upper end portion of the battery case 120 to the other end of the upper end portion of the battery case 120, in a one-to-one corresponding manner. That is, the 11 sensing plates 130_1, …, 130_11 provided in the upper portion of the battery assembly 100 can be connected to the 11 sensing terminals 240_1, …, 240_11 provided in the upper portion of the BMS assembly 200 in a one-to-one corresponding manner.

[0078] When the sensing terminals 240_1, …, 240_11 and the sensing plates 130_1, …, 130_11 are connected to each other, one end and the other end of a short conductor cable W or a metal band can be connected to the sensing terminals 240_1, …, 240_11 and the sensing plates 130_1, …, 130_11 by using a method such as fusion, bonding, welding, or bolt connection, for example.

[0079] The 11 sensing plates 130_1, …, 130_11 sense node voltage values at series connection points of the battery cells 110 and transmit the node voltage values to the BMS circuit board 210. The BMS circuit board 210 can control charging / discharging by monitoring voltage states of the battery cells 110 based on the voltage information. In this case, the 11 sensing terminals 240_1, …, 240_11 can be components used as intermediate means for connecting the 11 sensing plates 130_1, …, 130_11 to the BMS circuit board 210.

[0080] For example, the present disclosure can have a structure in which all of the sensing plates 130 are located in the upper portion of the battery assembly 100, and in order to easily connect the sensing plates 130 to the BMS circuit board 210, the sensing terminals 240, whose end portions are pre-welded to the BMS circuit board 210, are located on the upper end portion of the main cover 221.

[0081] This assembly structure for voltage sensing can perform simple and compact wiring even without using a voltage sensing component such as a conventional expensive FPCB, and can be structurally stable, so that damage to the component by external force (e.g., impact or vibration) can be prevented.

[0082] Although not shown, the battery module 10 can further include a heat sink positioned below the battery assembly 100. The heat sink is a component for indirectly cooling the battery cells 110 by passing a cooling fluid through an internal fluid path and absorbing heat from the battery tray 121 by thermal contact, and can be positioned in contact with a bottom surface of the battery tray 121. The cooling fluid flowing through the fluid path is not limited, and can be any fluid as long as it easily flows through the fluid path and has excellent cooling characteristics. For example, the cooling fluid can be water having high latent heat and capable of maximizing cooling efficiency. However, the present disclosure is not limited thereto, and antifreeze solution, gas refrigerant, or air can be applied as long as it flows.

[0083] The battery pack according to the present disclosure can include one or more battery modules 10. In addition, the battery pack according to the present disclosure can include, in addition to the battery module 10, a pack case for accommodating the battery module 10, and various devices such as a main BMS, a current sensor, and a fuse for controlling charging / discharging of the battery module 10.

[0084] The battery module 10 according to the present disclosure can be applied to an electric scooter, a vehicle such as an electric vehicle or a hybrid vehicle, or an energy storage system (ESS).

[0085] The present disclosure has been described in detail. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present disclosure, are given by way of illustration only, since various changes and modifications within the scope of the present disclosure will become apparent to those skilled in the art from this detailed description.

[0086] A person of ordinary skill in the art will understand that when terms indicating directions such as up, down, left, right, front, and back are used, these terms are only for convenience of explanation, and can vary according to the position of the target object, the position of the observer, etc.

Claims

1. A battery module comprising: a battery assembly including a plurality of battery cells and a battery case in which the plurality of battery cells are accommodated; and a battery management system (BMS) assembly including a BMS circuit board, a BMS cover accommodating the BMS circuit board, a plurality of sensing terminals mounted on an upper end portion of the BMS cover and connected to the BMS circuit board, and at least one temperature sensor module connected to the BMS circuit board and fixedly mounted on a rear surface of the BMS cover, the BMS assembly being mountably and detachably provided on a side surface of the battery case, wherein, when the BMS assembly is mounted on the side surface of the battery case, the temperature sensor module is configured to contact one of the plurality of battery cells, wherein the battery assembly includes a plurality of sensing boards each connected to a battery cell and provided at an upper end portion of the battery case, and wherein end portions of the plurality of sensing boards are connected to the plurality of sensing terminals in a one-to-one correspondence, respectively. 2.The battery module of claim 1, wherein the battery cells are cylindrical battery cells, wherein a sensor connection hole is provided in the side surface of the battery case to access the temperature sensor module, and the temperature sensor module is configured to contact the battery cell through the sensor connection hole. 3.The battery module of claim 1, wherein the BMS cover includes a main cover covering the side surface of the battery case and mounted on the battery case, wherein the BMS circuit board is attached to a front surface of the main cover, and the temperature sensor module is attached to a rear surface of the main cover. 4.The battery module of claim 3, wherein the BMS cover includes a front cover covering the BMS circuit board and attached to the front surface of the main cover. 5.The battery module of claim 3, wherein the plurality of sensing terminals are mounted on an upper end portion of the main cover, the plurality of sensing terminals are spaced apart from each other, and each sensing terminal has one end connected to the BMS circuit board. 6.The battery module of claim 5, wherein the plurality of sensing boards extend in parallel to each other from one end of the upper end portion of the battery case to the other end of the upper end portion of the battery case, wherein the plurality of battery cells below the plurality of sensing boards are electrically connected to the plurality of sensing boards at positions corresponding to the plurality of battery cells. 7.The battery module of claim 3, wherein the temperature sensor module includes: a thermistor; a sensor wire extending from the thermistor and connected to the BMS circuit board; and a sensor case supporting the thermistor and forcibly fitted to the main cover. 8.The battery module of claim 7, wherein the sensor case includes: a front portion including a receiving groove into which the thermistor is inserted and an insertion plate inserted into a sensor insertion groove formed in the main cover, and a rear portion having a curved surface. 9.The battery module of claim 8, wherein, the temperature sensor module includes a spacer formed of compressed foam material, and the spacer is fitted around the insertion plate and disposed between the sensor housing and the main cover. 10.The battery module of claim 2, wherein, the battery housing includes: a battery tray disposed such that each of the plurality of battery cells is inserted and erected; and a tray cover vertically coupled to the battery tray to fix and protect the plurality of battery cells, wherein the sensor connection hole is provided in the tray cover. 11.A battery pack including the battery module according to any one of claims 1 to 10.

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