TWI762632B - Battery module - Google Patents

Abstract

A battery module including at least one battery unit, a circuit board, a temperature sensing element and a protecting sleeve is provided. The circuit board is connected to the battery unit. The temperature sensing element is disposed on the circuit board and has a protruding portion, and the protruding portion is protruded from an edge of the circuit board to be in contact with the battery unit. The protecting sleeve is disposed on the circuit board and covers at least a part of the protruding portion.

Description

battery module

The present invention relates to an electronic component, and particularly to a battery module.

With the advancement of today's technology, notebook computers have become the mainstream of the consumer electronic product market due to their increasingly robust functions, smaller size and portability.

The notebook computer includes a battery module installed on the host computer to provide the power required for the operation of the notebook computer. A temperature sensing element such as a thermistor is generally configured on the circuit board of the battery module to sense the temperature of the battery unit, so as to prevent the battery unit from being overheated and failing or being damaged. However, in the process of assembling the battery module, it is easy for the assembler to press or bend the temperature sensing element unexpectedly, resulting in its damage.

The present invention provides a battery module, which can prevent its temperature sensing element from being damaged by external force.

The battery module of the present invention includes a battery unit, a circuit board, a temperature sensing element and a protective cover. The circuit board is connected to the battery unit. The temperature sensing element is disposed on the circuit board and has a protruding part, and the protruding part protrudes from an edge of the circuit board to contact the battery unit. The protective cover is disposed on the circuit board and covers at least part of the protruding portion.

In an embodiment of the present invention, one end of the above-mentioned protruding portion is exposed outside the protective cover and contacts the battery unit.

In an embodiment of the present invention, the above-mentioned protective cover includes a clip portion and a cover portion, the clip portion is clipped on the edge of the circuit board, the cover portion protrudes from the edge of the circuit board and covers at least Partial overhang.

In an embodiment of the present invention, the protruding portion and the covering portion protrude from the edge of the circuit board in one direction, and the length of the covering portion along the direction is smaller than the length of the protruding portion along the direction.

In an embodiment of the present invention, the clipping portion includes a first clipping arm and a second clipping arm, a gap exists between the first clipping arm and the second clipping arm, and the edge of the circuit board is sandwiched between the first clipping arm and the second clipping arm. between a clamping arm and a second clamping arm.

In an embodiment of the present invention, the above-mentioned temperature sensing element is disposed on a surface of the circuit board, the first clamping arm is located on the surface and has a groove facing the surface, and the groove accommodates part of the temperature sensing element.

In an embodiment of the present invention, the depth of the above-mentioned groove along the direction perpendicular to the surface is greater than the thickness of the temperature sensing element along the direction.

In an embodiment of the present invention, the above-mentioned cover portion has a through hole, the through hole communicates with the groove and accommodates another part of the temperature sensing element.

In an embodiment of the present invention, the material of the above-mentioned protective cover is an elastic material.

In an embodiment of the present invention, the above-mentioned temperature sensing element is a thermistor.

Based on the above, in the battery module of the present invention, a protective cover is added on the circuit board, so that the protruding portion of the temperature sensing element is covered by the protective cover. In this way, the protruding portion of the temperature sensing element can be prevented from being bent by an external force, so as to reduce the probability of damage to the temperature sensing element.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

FIG. 1 is a partial schematic diagram of a battery module according to an embodiment of the invention. FIG. 2 is a partial exploded view of the battery module of FIG. 1 . Please refer to FIG. 1 and FIG. 2 . The battery module 100 of the present embodiment is, for example, a battery module installed in a notebook computer. The battery module 100 includes a battery unit 110 , a circuit board 120 , and a temperature sensor. element 130 and a protective cover 140 . The circuit board 120 is connected to the battery unit 110 to supply the power of the battery unit 110 to the notebook computer. The battery unit 110 shown in FIG. 1 is for illustration only, it can be composed of a plurality of batteries and is fixed with the circuit board 120 by a frame, and the present invention does not limit its form.

The temperature sensing element 130 is, for example, a thermistor, which is disposed on the circuit board 120 and has a protruding portion 132 . The protruding portion 132 protrudes from an edge 120 a of the circuit board 120 along the direction D1 to contact the battery unit 110 . The relative relationship between the protruding portion 132 and the battery cell 110 shown in FIG. 1 is only for illustration. The protruding portion 132 can directly contact the battery cell 110 or indirectly contact the battery cell 110 through thermally conductive adhesive, which is not limited in the present invention. The protective cover 140 is disposed on the circuit board 120 and covers part of the protruding portion 132 of the temperature sensing element 130 , so as to prevent the protruding portion 132 of the temperature sensing element 130 from being bent by external force, so as to reduce the damage of the temperature sensing element 130 probability.

In the present embodiment, the material of the protective cover 140 is, for example, an insulating elastic material such as plastic or rubber, so as to absorb manufacturing and assembly tolerances by virtue of its elasticity, and can avoid contact with the battery unit 110 , the circuit board 120 or the temperature by virtue of its insulating property The sensing element 130 makes an unexpected electrical connection.

Referring to FIG. 2 , in detail, the protective cover 140 of this embodiment includes a clip portion 142 and a cover portion 144 , the clip portion 142 is clipped on the edge 120 a of the circuit board 120 , and the cover portion 144 is along the direction D1 It protrudes from the edge 120a of the circuit board 120 and covers part of the protrusion 132 . The length of the cover portion 144 along the direction D1 is smaller than the length of the protruding portion 132 of the temperature sensing element 130 along the direction D1, so that the end of the protruding portion 132 can be exposed outside the protective cover 130 and contact the battery cells 110 ( shown in Figure 1). In addition, as described above, the protective cover 140 is assembled to the circuit board 120 in a sandwiching manner by means of the sandwiching portion 142 , and its assembly convenience is better than that of screw locking or gluing.

FIG. 3 is a perspective view of the protective cover of FIG. 1 . FIG. 4 is a partial rear view of the battery module of FIG. 1 . Please refer to FIG. 3 and FIG. 4 , in more detail, the clamping portion 142 of the protective cover 140 of this embodiment includes a first clamping arm 142a and a second clamping arm 142b, the first clamping arm 142a and the second clamping arm There is a gap between 142b, and the edge 120a (marked in FIG. 2) of the circuit board 120 is sandwiched between the first clamping arm 142a and the second clamping arm 142b.

On top of that, the temperature sensing element 130 is disposed on a surface 120b of the circuit board 120, and the first clamping arm 142a of the clamping portion 142 is located on the surface 120b and has a groove R facing the surface 120b, and the groove R accommodates part of the temperature sensor measuring element 130. The cover portion 144 of the protective cover 140 has a through hole 144 a, and the through hole 144 a communicates with the groove R of the first clamping arm 142 a and accommodates another part of the temperature sensing element 130 . That is, the temperature sensing element 130 is not only covered by the covering portion 144 of the protective sleeve 140 , but also covered by the first clamping arm 142 a of the clip portion 142 of the protective sleeve 140 , so as to obtain comprehensive protection. In addition, the depth of the groove R of the first clamping arm 142a along the direction D2 of the vertical surface 120b is greater than the thickness of the temperature sensing element 130 along the direction D2, so that the temperature sensing element 130 will not be unintentionally pressed by the first clamping arm 142a .

To sum up, in the battery module of the present invention, a protective cover is added on the circuit board, so that the protruding portion of the temperature sensing element is covered by the protective cover. In this way, the protruding portion of the temperature sensing element can be prevented from being bent by an external force, so as to reduce the probability of damage to the temperature sensing element. In addition, the protective cover can be assembled on the circuit board by means of clipping, and its assembly convenience is better than that of screw locking or gluing.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the appended patent application.

100‧‧‧Battery module 110‧‧‧Battery unit 120‧‧‧Circuit board 120a‧‧‧Edge 120b‧‧‧Surface 130‧‧‧Temperature sensing element 132‧‧‧Protrusion 140‧‧‧Protective cover 142‧‧‧Clamping part 142a‧‧‧First clamping arm 142b‧‧‧Second clamping arm 144‧‧‧Covering part 144a‧‧‧Through hole D1, D2‧‧‧Direction R‧‧‧groove

FIG. 1 is a partial schematic diagram of a battery module according to an embodiment of the invention. FIG. 2 is a partial exploded view of the battery module of FIG. 1 . FIG. 3 is a perspective view of the protective cover of FIG. 1 . FIG. 4 is a partial rear view of the battery module of FIG. 1 .

100‧‧‧Battery Module

110‧‧‧Battery unit

120‧‧‧Circuit board

130‧‧‧Temperature Sensing Components

140‧‧‧Protective case

Claims (9)

A battery module includes: a battery unit; a circuit board connected to the battery unit; a temperature sensing element disposed on the circuit board and having a protruding part, wherein the protruding part extends from the An edge protrudes out to contact the battery unit; and a protective cover is disposed on the circuit board and covers at least part of the protruding portion, the protective cover includes a clip portion and a cover portion, the clip portion Clipped on the edge of the circuit board, the covering portion protrudes from the edge of the circuit board and covers at least part of the protruding portion. The battery module of claim 1, wherein one end of the protruding portion is exposed outside the protective cover and contacts the battery unit. The battery module of claim 1, wherein the protruding portion and the covering portion protrude from the edge of the circuit board along a direction, and the length of the covering portion along the direction is smaller than the length of the protruding portion The length of the extension in this direction. The battery module of claim 1, wherein the clamping portion includes a first clamping arm and a second clamping arm, and a gap is formed between the first clamping arm and the second clamping arm, and the circuit The edge of the plate is sandwiched between the first clamp arm and the second clamp arm. The battery module of claim 4, wherein the temperature sensing element is disposed on a surface of the circuit board, the first clamping arm is located on the surface and has a groove facing the surface, the concave The slot accommodates a portion of the temperature sensing element. The battery module of claim 5, wherein a depth of the groove along a direction perpendicular to the surface is greater than a thickness of the temperature sensing element along the direction. The battery module of claim 5, wherein the cover portion has a through hole, the through hole communicates with the groove and accommodates another part of the temperature sensing element. The battery module according to item 1 of the claimed scope, wherein the material of the protective cover is an elastic material. The battery module of claim 1, wherein the temperature sensing element is a thermistor.

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