JP2018159656A - Protector and sensor installation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector and a sensor installation structure that can facilitate assembling work.SOLUTION: A protector has: a plurality of sensor retaining/opening closing parts 30 which each comprise a sensor retaining part 31 and an opening closing part 32 for closing an opening 13a for sensor insertion formed in a surrounding wall 12 to be detected from an outer surface side of the surrounding wall 12 to be detected, and are provided at positions corresponding to all of the plurality of openings 13a for sensor insertion; and an electric wire retaining part 40 which retains an electric wire W for sensor. The protector 20 is fitted to the surrounding wall 13 to be detected while sensors 90 are retained at all of the plurality of sensor retaining/opening closing parts 30 or some of sensor retaining parts 31 so as to insert and be arranged sensors 90 retained at the sensor retaining parts 31 in openings 13a for sensor insertion at predetermined detection points and also close all the openings 13a for sensor insertion including openings 13a for sensor insertion where the sensors 90 are not inserted and arranged with the opening closing parts 32.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a protector that can hold a sensor so that a detection target surrounded by a wall can be detected, and a sensor mounting structure using the protector.

Conventionally, a battery module in which a plurality of batteries are connected side by side is used as a power source of an electric vehicle or a hybrid vehicle.
In such a battery module, since it is important to manage voltage or temperature, the voltage or temperature at a plurality of locations can be detected and monitored by a plurality of sensors.

  For example, Patent Literature 1 describes a mounting structure of a temperature detection body that is disposed at a temperature detection point by holding a thermistor as a temperature sensor in a holding portion provided in an insulating cover that covers a battery wiring module. ing.

Japanese Patent Laid-Open No. 2006-90286

However, in the temperature detector mounting structure described in Patent Document 1, a thermistor insertion portion that is an opening for inserting the thermistor is provided, and therefore, a holding portion to which the thermistor cannot be attached is provided among the plurality of holding portions. In some cases, the thermistor insertion part is opened, so that the detection target can be accurately detected by suppressing the influence of the external temperature, etc., or the operator touches the internal electrical connection part through the opening and receives an electric shock. In addition, in order to prevent an object that has fallen into the opening from the outside from damaging the detection target, it is necessary to close the opening with a separate member, resulting in complicated assembly work. There was a problem of becoming.
Note that such a problem is also a problem with the mounting structure of sensors other than the thermistor.

  This invention is made | formed in view of the above, Comprising: It aims at providing the protector and sensor attachment structure which can make an assembly | attachment operation | work easy.

  In order to solve the above-described problems and achieve the object, a protector according to claim 1 of the present invention includes a sensor holding portion that is a portion that holds a sensor, and a detection target enclosure that is a wall surrounding the detection target of the sensor. A plurality of sensor insertion openings formed in the detection target enclosure wall, and an opening closing portion for closing a sensor insertion opening formed on the wall so that the sensor can be inserted from an outer surface side of the detection target enclosure wall. A plurality of sensor holding / opening blocking portions provided at positions corresponding to all of the above, and an electric wire holding portion for holding a sensor wire drawn from the sensor held by the sensor holding portion along a predetermined routing route And is attached to the outer surface of the detection target enclosure wall in a state where the sensors are held by all or a part of the plurality of sensor holding / opening blocking portions. Therefore, all the sensors including the sensor insertion opening in which the sensor held by the sensor holding portion is inserted and arranged in the sensor insertion opening at a predetermined detection point and the sensor is not inserted and arranged. The insertion opening is closed by the opening blocking portion.

  Further, in the protector according to claim 2 of the present invention, in the above invention, when the protector is connected in parallel with a plurality of the detection target surrounding walls corresponding to the plurality of detection targets, A plurality of the protectors corresponding to the above has a connecting portion to be connected to each other.

  Further, in the protector according to claim 3 of the present invention, in the above invention, the connecting portion is arranged in a direction in which the connecting portion and the protector are connected to each other through a connecting member separate from the protector. It is connected with the play in the vertical and horizontal directions in the plane orthogonal to the arrangement direction.

  In the protector according to claim 4 of the present invention, in the above invention, the sensor is a temperature sensor, and the object to be detected is a battery connected body in which one battery or a plurality of batteries are connected side by side. It is characterized by being.

  In order to solve the above-described problems and achieve the object, a sensor mounting structure according to claim 5 of the present invention is a wall surrounding a detection target of the sensor, and corresponds to a plurality of detection points inside the wall. A detection target surrounding wall in which a plurality of sensor insertion openings are formed through which the sensor can be inserted from the outer surface to the inside, a sensor holding portion serving as a portion for holding the sensor, and the sensor insertion opening. A plurality of sensor holding / opening blocking portions provided at positions corresponding to all of the plurality of sensor insertion openings, and held by the sensor holding portion. And a protector provided with a wire holding portion for holding a sensor wire drawn from the sensor along a predetermined routing route, and all of the plurality of sensor holding / opening closing portions are provided. No In a state where the sensor is held by some of the sensor holding portions, the protector is attached to the outer surface of the detection target enclosure wall, so that the sensor held by the sensor holding portion has a predetermined detection point. All the sensor insertion openings including the sensor insertion opening that is inserted and arranged in the sensor insertion opening and in which the sensor is not inserted and arranged are closed by the opening closing portion. Features.

  In the protector according to claim 1 of the present invention, since the sensor holding / opening closing portion is provided at a position corresponding to all of the plurality of sensor insertion openings, the sensor is held by some of the sensor holding portions. Even when the protector is attached to the detection target enclosure wall in a state where the sensor is inserted, all the sensor insertion openings including the sensor insertion opening where the sensor is not inserted and arranged are blocked by the opening blocking portion. Therefore, it is not necessary to individually block the sensor insertion opening where the sensor is not inserted and arranged, and as a result, assembly work can be facilitated.

  The protector which concerns on Claim 2 of this invention has a connection part by which the said some protector is mutually connected, when the said detection target surrounding walls are connected along with several corresponding to the said several detection targets. Therefore, even when a plurality of detection target surrounding walls are connected side by side, a plurality of protectors are connected together and attached to the plurality of connected detection target surrounding walls, thereby facilitating assembly work. be able to.

  In the protector according to claim 3 of the present invention, a plurality of protectors are connected with play in the vertical and horizontal directions in the direction in which the protectors are arranged and the plane orthogonal to the arrangement direction via the connecting members. Therefore, even if there is a shift in the connecting portions of the detection target surrounding walls connected in a plurality, the plurality of connected protectors can absorb the shift in the connecting portions.

  The protector according to a fourth aspect of the present invention is the protector surrounding wall in a state in which all the sensor insertion openings including the sensor insertion opening in which the temperature sensor is not inserted and arranged are closed by the opening closing portion. Since the temperature of the one battery in the battery or the battery connection body can be detected, the influence of the outside of the detection target enclosure wall is suppressed and the temperature of the battery connection body to be detected is accurately measured. be able to.

  In the sensor mounting structure according to claim 5 of the present invention, the sensor holding / opening closing portion provided in the protector is provided at a position corresponding to all of the plurality of sensor insertion openings. Even when the protector is attached to the outer surface of the detection target enclosure wall while the sensor is held by the sensor holding portion, all the sensor insertions including the sensor insertion opening where the sensor is not inserted and arranged Since the opening for opening is closed by the opening closing portion, it is not necessary to individually close the opening for inserting the sensor where the sensor is not inserted and arranged, and as a result, the assembly work can be facilitated.

1A is a perspective view showing a state before a protector is attached to a battery module of a battery unit in which a protector and a sensor mounting structure according to an embodiment of the present invention are incorporated, and FIG. It is the sectional view on the AA line of the battery module shown in FIG. FIG. 2 is a perspective view showing a state in which a protector is attached to the battery module of the battery unit shown in FIG. FIG. 3 is a diagram showing a state before the three protectors are connected. FIG. 4A is a view of a state in which three protectors are connected as viewed from the inner surface side of the protector, and FIG. 4B is a side view of FIG. 5A is a perspective view of the vicinity of the sensor holding / opening blocking portion of the protector, and FIG. 5B is a protector shown in FIG. 5A holding the temperature sensor and the sensor wire drawn from the temperature sensor. FIG. 6A is a view of the electric wire holding portion viewed from the electric wire insertion port side, and FIG. 6B is a cross-sectional view of the electric wire locking portion shown in FIG. 7A is a cross-sectional view taken along line B1-B1 of the battery unit shown in FIG. 2, and FIG. 7B is a cross-sectional view taken along line B2-B2 of the battery unit shown in FIG. FIG. 8 is a perspective view of tongue pieces as wire outlets as seen from different directions. It is the enlarged view of the periphery of the connection part of the one-end connection protector shown in FIG. 9, FIG. 3, and the connection part of a both-ends connection protector. FIG. 10A is a perspective view of a portion where the connecting portion of the one-end connecting protector and the connecting portion of the both-end connecting protector are connected, and FIG. 10B is a sectional view taken along line DD of the connecting portion shown in FIG. It is. It is an enlarged view of the periphery of the connection part of the two both-ends connection protector shown in FIG. 11, FIG. FIGS. 12A and 12A are perspective views of a portion where two end connecting protectors are connected, and FIG. 12B is a cross-sectional view taken along line EE of the connecting portion shown in FIG. FIG. 13 is a perspective view of the temperature sensor. FIG. 14 is a diagram for explaining that the number of connection of the protectors is not limited to three.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a protector and sensor mounting structure according to the present invention will be described in detail with reference to the drawings.

FIG. 1A is a perspective view illustrating a state before the protector 20 is attached to the battery module 10 of the battery unit 100 in which the protector 20 and the sensor mounting structure 1 according to the embodiment of the present invention are incorporated. b) is the sectional view on the AA line of the battery module 10 shown to (a). FIG. 2 is a perspective view showing a state where the protector 20 is attached to the battery module 10 of the battery unit 100 shown in FIG. FIG. 3 is a diagram showing a state before the three protectors 20 are connected. 4A is a view of the state in which the three protectors 20 are connected as viewed from the inner surface side of the protector 20, and FIG. 4B is a side view of FIG. 4A. 5A is a perspective view of the vicinity of the sensor holding / opening closing portion 30 of the protector 20, and FIG. 5B is a temperature sensor 90 and a sensor that is drawn from the temperature sensor 90 to the protector 20 shown in FIG. 5A. It is the perspective view of the sensor holding / opening closing part 30 periphery which showed the state with which the electric wire W was hold | maintained. 6A is a view of the electric wire holding portion 40 viewed from the electric wire insertion port 40a side, and FIG. 6B is a cross-sectional view of the electric wire holding portion 40 shown in FIG. 7A is a cross-sectional view taken along line B1-B1 of the battery unit shown in FIG. 2, and FIG. 7B is a cross-sectional view taken along line B2-B2 of the battery unit 100 shown in FIG. FIG. 8 is a perspective view of the tongue piece 51 as the wire outlet 50 as seen from different directions. It is an enlarged view of the periphery of the connection part 60 of the one end connection protector 20A shown in FIG. 9, FIG. 3, and the connection part 70 of the both ends connection protector 20B. FIG. 10A is a perspective view of a portion where the connecting portion 60 of the one-end connecting protector 20A and the connecting portion 70 of the both-end connecting protector 20B are connected, and FIG. 10B is a D- of the connecting portion shown in FIG. It is D line sectional drawing. It is an enlarged view of the periphery of the connection part 70 of the two both-ends connection protector 20B shown in FIG. 11, FIG. FIGS. 12A and 12A are perspective views of a portion where two two-end connection protectors 20B are connected, and FIG. 12B is a cross-sectional view taken along line EE of the connection portion shown in FIG. FIG. 13 is a perspective view of the temperature sensor 90. FIG. 14 is a diagram for explaining that the number of connections of the protector 20 is not limited to three.
The protector 20 and the sensor mounting structure 1 according to the embodiment of the present invention are incorporated into a battery unit 100 including a battery connector BP in which a plurality of batteries 11 serving as a power source for an electric vehicle or a hybrid vehicle are connected side by side. Is.

  The battery unit 100 includes three battery modules 10 connected to each other, and a protector 20 that holds the temperature sensor 90 and protects the sensor electric wire W drawn from the temperature sensor 90.

First, the battery module 10 will be described.
The battery module 10 includes a plurality of batteries 11, a bus bar (not shown) that electrically connects the plurality of batteries 11, a case 12 that houses the plurality of batteries 11 and the bus bar, and an upper surface cover that closes the upper surface opening 12 a of the case 12. 13.

  The battery 11 is a commercially available cylindrical battery, and electrodes are provided at both ends.

The bus bar is a plate-like conductive member that connects the electrodes of adjacent batteries 11 of the plurality of batteries 11 accommodated in the case 12 in series or in parallel.
The plurality of batteries 11 are configured as one battery connector BP adjusted to a predetermined capacity by being electrically connected via a bus bar.

The case 12 is made of an insulating resin material and holds a plurality of electrically connected batteries 11 in an aligned state.
In this embodiment, the case 12 is a substantially rectangular parallelepiped box in which an upper surface opening 12a is formed, and lock projections 12b for fixing the protector 20 are provided at various locations on the outer surface of the end portion on the upper surface opening 12a side. .

The top cover 13 constitutes a detection target surrounding wall that is a wall that surrounds the battery connector BP that is the detection target by the temperature sensor 90 together with the case 12 by closing the top opening 12 a of the case 12. That is, the upper surface cover 13 constitutes the upper wall of the detection target surrounding wall, and the case 12 constitutes the bottom wall and the side wall of the detection target surrounding wall.
The top cover 13 is a plate-like member made of an insulating resin material, and penetrates through the temperature sensor 90 so that the temperature sensor 90 can be inserted from the outer surface to the inside corresponding to a plurality of detection points surrounded by the wall by the temperature sensor 90. A plurality of sensor insertion openings 13a are provided.

  In this embodiment, the side outer surfaces of the three connected battery modules 10 are surrounded by the side cover 14.

Next, the protector 20 will be described.
The protector 20 is made of an insulative resin material, and is attached to the outer surface of the top cover 13 so that a plurality of temperature sensors 90 are arranged on the top cover 13 along the predetermined route. In addition to being arranged at each detection point, all of the plurality of sensor insertion openings 13a provided in the upper surface cover 13 are closed.
In addition, in this Example, since the three battery modules 10 are connected, the three protectors 20 corresponding to each battery module 10 are connected.

Of the three protectors 20, one of the protectors 20 is arranged in the direction in which the protectors 20 are arranged (hereinafter simply referred to as “alignment direction”), and the other end is connected to the other protector 20. One end connecting protector 20 </ b> A is a connecting portion 60, and the other two are both end connecting protectors 20 </ b> B in which both end sides in the arrangement direction are connecting portions 70 with other protectors 20.
That is, the three protectors 20 connected are constituted by two types of protectors 20, that is, a one-end connection protector 20 </ b> A and a both-end connection protector 20 </ b> B.

First, common components of the two types of protectors 20 will be described.
The two types of protectors 20 have the sensor holding / opening closing portion 30 and the wire holding portion 40 as common components.

  The sensor holding / opening closing portion 30 includes a sensor holding portion 31 that becomes a portion for holding the temperature sensor 90, an opening closing portion 32 that closes the sensor insertion opening 13a from the outer surface side of the upper surface cover 13 as a detection target surrounding wall, And provided at positions corresponding to all of the plurality of sensor insertion openings 13 a provided in the upper surface cover 13.

As shown in FIG. 5, the sensor holding portion 31 includes a pair of locking pieces 31 a and 31 a that protrude from the inner surface of a closing main body portion 33 described later of the opening closing portion 32.
The pair of locking pieces 31 a and 31 a are formed with locking holes 31 b in which the pair of locking protrusions 93 and 93 provided in the temperature sensor 90 are locked.

As shown in FIG. 13, the temperature sensor 90 is a part that supports a detection unit 91 in which a thermistor (not shown) is incorporated and a detection unit 91, and a pair of locking projections 93 and 93 are provided on both sides. And a support portion 92.
The support portion 92 is configured such that the sensor wire W connected to the thermistor is drawn out.

The opening closing portion 32 includes a closing main body portion 33 that is a portion that closes the sensor insertion opening 13a from the outer surface side of the top cover 13, and a closing main body fixing for fixing the closing main body portion 33 at a position closing the sensor insertion opening 13a. Part 34.
The closing main body portion 33 is a plate-like portion having an inner surface 33a disposed so as to face the sensor insertion opening 13a as compared with the sensor insertion opening 13a.
In the closing main body 33, the inner surface 33a serves as a fixing surface for fixing the temperature sensor 90, and the pair of locking pieces 31a and 31a project from the inner surface 33a as described above.

Further, on the inner surface 33a of the closing main body portion 33, an edge standing wall 33a continuous with an edge standing wall 41b described later of the electric wire holding portion 40 is provided along the edge.
The erected wall 33a is an inner surface of the closed main body portion 33 so that a portion where the closed main body fixing portion 34 is formed in the edge of the closed main body portion 33 and an unformed portion is left also in other portions. 33a is erected.
In addition, the non-molded portion of the erected wall 33a is provided in consideration of the mountability and detachability of the protector 20.

  The closing main body fixing portion 34 includes a lock piece 35 erected on the inner surface 33 a of the closing main body portion 33 along the edge of the closing main body portion 33.

  The lock piece 35 has a pair of leg portions 35a and 35a erected on the edge of the closing main body portion 33, and a bridge portion 35b that bridges the upper portions of the pair of leg portions 35a and 35a. A locking projection 35c is provided on the bridging portion 35b of the shaped piece main body.

The lock protrusion 35 c is a part that engages with the above-described lock protrusion 12 b provided on the case 12.
That is, the lock piece 35 functions to fix the protector 20 to the battery module 10 as well as to fix the closing main body 33 at a position closing the sensor insertion opening 13a.

The electric wire holding unit 40 holds the sensor electric wire W drawn from the temperature sensor 90 held by the sensor holding unit 31 along a predetermined routing route.
The electric wire holding portion 40 includes a holding main body portion 41 provided along the routing route of the sensor electric wire W, and an electric wire fixing portion 42 provided at various positions of the holding main body portion 41 to lock the sensor electric wire W. , Has.

  The holding body 41 includes a main holder 41A that guides the sensor wires W of the plurality of temperature sensors 90 to the electric wire outlet 50 of the protector 20, and branches from the main holder 41A to each sensor holding / opening closing portion 30. And a branch holding unit 41B to be connected.

The main trunk holding portion 41A and the branch holding portion 41B include a bottom wall portion 41a on which the sensor electric wire W is placed, and an edge standing wall 41b that stands on both edges of the bottom wall portion 41a. .
The branch holding part 41B includes a partition wall 41c for partitioning and arranging the sensor electric wire W with a wall.

  In this embodiment, the branch holding part 41B is illustrated as being branched from the main trunk holding part 41A in a Y shape or in a straight line. However, the branch shape of the branch holding part 41B is not limited to this, and the main trunk is not limited thereto. Other branch shapes may be used as long as the holding portion 41 </ b> A and each sensor holding / opening closing portion 30 are connected as the routing route of the sensor electric wire W.

As shown in FIG. 6, the wire fixing portion 42 is adjusted so that the distance between the partition wall 41 c and the edge standing wall 41 b or the distance between the opposing edge standing walls 41 b and 41 b is narrower than the periphery, and The wire locking protrusion 42a is provided in the vicinity of the wire insertion opening 40a.
The electric wire fixing portion 42 sandwiches a part of the sensor electric wire W between the walls, and prevents the sensor electric wire W from being detached from the electric wire insertion port 40a by the electric wire locking projection 42a.

Next, different components of the two types of protectors 20 will be described.
First, the one-end connection protector 20A will be described.
The one-end connection protector 20A has wire outlets 50 that are portions to draw out the sensor wires W at two locations spaced apart from each other.

The electric wire outlet 50 is configured by a tongue piece portion 51 protruding in a tongue shape from the terminal portion of the main trunk holding portion 41A.
The tongue piece 51 is taped together with the plurality of sensor wires W drawn from the main trunk holding portion 41 </ b> A so that the plurality of sensor wires W drawn from the main trunk holding portion 41 </ b> A can be fixed to the electric wire outlet 50. It has become.
By providing the tongue pieces 51 at two locations separated from each other, the tongue pieces 51 suitable for the installation conditions such as the space of the installation place of the battery unit 10 can be selected as the electric wire outlet 50. It has become.

Further, the one-end connection protector 20A has a connection part 60 different from the both-end connection protector 20B.
As shown in FIGS. 9 and 10, the connecting portion 60 is integrally provided on the outer surface of the edge standing wall 41b of the main trunk holding portion 41A, and is a connecting piece portion protruding in the direction of alignment with the both-end connecting protector 20B. 61.

  The connecting piece portion 61 is between the outer surface of the edge standing wall 41b of the main trunk holding portion 41A of the both-end connecting protector 20B to be connected and the connecting piece portion 71 described later which becomes the connecting portion 70 of the both-end connecting protector 20B. It has a contact part 61a bent so as to contact the upper end edge surface of the edge standing wall 41b of the holding part 41A, and a connection projection 61b that fits in a connection hole 71a described later of the both-end connection protector 20B. Become.

  When the one-end connection protector 20A and the both-end connection protector 20B are connected via such a connection piece portion 61, the contact portion 61a and the connection protrusion 61b allow the vertical direction in FIG. The backlash of the connecting portion is regulated with a slight play.

  Further, when the connecting piece portion 61 enters between the outer surface of the edge standing wall 41b of the main trunk holding portion 41A of the both-end connecting protector 20B and the connecting piece portion 71 to be described later, which becomes the connecting portion 70 of the both-end connecting protector 20B. In FIG. 10 (b), the backlash of the connecting portion in the lateral direction is regulated with a slight play.

  The one-end connection protector 20 </ b> A and the both-end connection protector 20 </ b> B connected to each other in this way are connected to each other by the main holding portion 41 </ b> A.

Next, the both end connection protector 20B will be described.
The both ends connecting protector 20B is not only connected to the connecting piece 61 of the one end connecting protector 20A as described above, but also using the connecting member 80 separate from the protector 20 between the both ends connecting protector 20B. It is comprised so that it can connect.

  As shown in FIGS. 11 and 12, the connecting portion 70 has a connecting piece portion 71 provided in an L shape when viewed from the arrangement direction on the outer surface of the edge standing wall 41 b of the terminal end portion of the main trunk holding portion 41 </ b> A. Do it.

  The connecting piece 71 is formed with a connecting hole 71a into which the connecting member 80 or the connecting projection 61b of the one-end connecting protector 20A is fitted.

  In addition, the connection member 80 is the same as the connection piece part 61 of the one-end connection protector 20A, and the outer surface of the edge standing wall 41b of the trunk holding part 41A of the both-end connection protector 20B and the connection piece part 71 of the both-end connection protector 20B. A contact portion 81a bent so as to contact the upper end edge surface of the edge standing wall 41b of the main trunk holding portion 41A and a connection protrusion 81b fitted in the connection hole 71a of the both-end connection protector 20B are provided. The connecting piece portions 81 are a pair of members provided at both ends in the arrangement direction.

  When the both-end connection protectors 20B are connected to each other between the connection piece portions 81 provided at both ends of the connection member 80, the edge surfaces of the connection piece portions 71 of the both-end connection protectors 20B abut in the alignment direction. A contact portion 82 is provided on which a contact surface 82a is formed.

  When the both-end connection protectors 20B are connected to each other through such a connection member 80, the contact portion 81a and the connection protrusion 81b cause a slight backlash in the connection portion in the vertical direction in FIG. It has become regulated with a lot of play.

  Further, the connecting piece portion 81 of the connecting member 80 enters between the outer surface of the edge standing wall 41b of the main trunk holding portion 41A of the both-end connecting protector 20B and the connecting piece portion 71 of the both-end connecting protector 20B. In (b), the backlash of the connecting portion in the lateral direction is regulated with some play.

  Furthermore, since the edge surface of the connection piece part 71 of both ends connection protector 20B is contact | abutted in the alignment direction on the contact surface 82a of the connection member 80 (refer Fig.12 (a)), in the alignment direction. The backlash of the connecting portion is regulated with some play.

  If one protector 20A is used on the wire drawing side and the other protectors 20 are configured so that the protectors 20B are connected, the two types of protectors 20A and 20B are protected. By using 20, it is possible to cope with a case where three or more protectors 20 are connected.

Next, the assembly procedure of the sensor mounting structure 1 will be described.
Note that the step of attaching the temperature sensor 90 to the protector 20 and the step of attaching the protector 20 to which the temperature sensor 90 is attached to the battery module 10 will be described as different steps.

First, in the step of attaching the temperature sensor 90 to the protector 20, the temperature sensor 90 is attached to the three protectors 20 connected in correspondence with the three battery modules 10.
In this process, the temperature sensor 90 is not attached to all the sensor holding portions 31 of the three protectors 20, but is attached only to the sensor holding portions 31 corresponding to the detection points.
Further, the sensor wires W drawn from the temperature sensors 90 are securely held by the wire holding portion 40 by being fixed at a plurality of locations by the wire fixing portion 42.

Next, in the step of attaching the protector 20 to the battery module 10, the three battery modules 10 are connected by a connection structure (not shown) or the side cover 14 or the like, and connected to the three battery modules 10 connected. The three protectors 20 are fixed together.
In this step, the lock protectors 35c provided on the respective closure main body fixing portions 34 of the protectors 20 are engaged with the lock protrusions 12b provided on the case 12, so that the three protectors 20 connected are connected. The three modules 10 are fixed.
As a result, each sensor holding / opening closing portion 30 of the protector 20 is fixedly disposed at a position corresponding to all the sensor insertion openings 13 a provided in the upper surface cover 13 of each battery module 10.
For this reason, the temperature sensor 90 held by the sensor holding unit 31 is inserted into the sensor insertion opening 13a, and the temperature of the battery module 10 inside the upper surface cover 13 can be detected.
Further, all the sensor insertion openings 13a including the sensor insertion opening 13a in which the temperature sensor 90 is not inserted and arranged are closed by the opening closing portion 32 (see FIG. 7).

  In the protector 20 according to the embodiment of the present invention, the sensor holding / opening closing portion 30 is provided at a position corresponding to all of the plurality of sensor insertion openings 13a. Even when the protector 20 is attached to the outer surface of the upper surface cover 13 in a state where the temperature sensor is held, all the sensor insertion openings 13a including the sensor insertion opening 13a in which the temperature sensor 90 is not inserted are disposed. Therefore, it is not necessary to individually block the sensor insertion opening 13a in which the temperature sensor 90 is not inserted and arranged, and as a result, the assembly work can be facilitated.

  Moreover, the protector 20 which concerns on the Example of this invention is a connection part with which the some protector 20 is mutually connected, when the detection object surrounding walls 12 and 13 are connected in parallel corresponding to the some electrical connection body BP. Since the plurality of detection target surrounding walls 12 and 13 are connected side by side, the plurality of detection target surrounding walls 12 and 13 connected in a state where the plurality of protectors 20 are connected are provided. As a result, the assembly work can be facilitated.

  Further, the protector 20 according to the embodiment of the present invention is connected so that a plurality of protectors 20 have play in the vertical and horizontal directions on the alignment direction of the protectors 20 and the plane orthogonal to the alignment direction via the connection member 80. Therefore, even if there is a shift in the connecting portions of the detection target enclosure walls 12 and 13 connected in parallel, the plurality of connected protectors 20 can absorb the shift in the connecting portions. it can.

  In addition, the protector 20 according to the embodiment of the present invention is detected in a state where all the sensor insertion openings 13a including the sensor insertion opening 13a in which the temperature sensor 90 is not inserted and arranged are closed by the opening closing portion 32. Since the temperature of the battery connection body BP in the target enclosure walls 12, 13 can be detected, the influence of the outside of the detection target enclosure walls 12, 13 is suppressed and the temperature of the battery connection body BP to be detected is accurately measured. can do.

  In the sensor mounting structure 1 according to the embodiment of the present invention, the sensor holding / opening closing portion 30 provided in the protector 20 is provided at a position corresponding to all of the plurality of sensor insertion openings 13a. Even when the protector 20 is attached to the upper surface cover 13 with the temperature sensor 90 held by the sensor holding portion 31, all the sensor insertion openings including the sensor insertion opening 13a in which the temperature sensor 90 is not inserted are arranged. Since 13a is closed by the opening blocking portion 32, it is not necessary to individually block the sensor insertion opening 13a where the temperature sensor 90 is not inserted and arranged, and as a result, the assembly work can be facilitated.

  In addition, although the protector 20 and the sensor attachment structure 1 which concern on the Example of invention demonstrated the thing attached to the three battery modules 10 connected in the state in which the three protectors 20 were connected, at least 1 protector 20 was shown. Is attached to one battery module 10, the number of connections of the protector 20 or the number of connections of the battery module 10 is not limited to this. For example, as illustrated in FIG. 14, two protectors 20 </ b> A and 20 </ b> B connected may be attached to two connected battery modules 10.

  In addition, the sensor mounting structure 1 according to the embodiment of the present invention uses a cylindrical battery, but the shape of the battery is not limited to this, and for example, a plate may be used.

  In the sensor mounting structure 1 according to the embodiment of the invention, the detection target is the battery connector BP in which a plurality of batteries are connected side by side. However, the detection target may be one battery. .

  In the protector 20 and the sensor mounting structure 1 according to the embodiment of the present invention, the temperature sensor is used as the sensor. However, the present invention is not limited to this, and other sensors may be used. For example, a current sensor may be used.

  Moreover, although the protector 20 and the sensor mounting structure 1 which concern on the Example of invention set the connection part 60 of the one end connection protector 20A to the structure different from the both ends connection protector 20B, it is not restricted to this, It is the same as that of the both ends connection protector 20B. You may make it the structure connected using the connection member 80. FIG.

  In the sensor mounting structure 1 according to the embodiment of the invention, the plurality of sensor insertion openings 13a are illustrated as being provided in the upper surface cover 13 constituting the upper surface of the detection target surrounding wall. The location for providing is not limited to the upper surface of the detection target surrounding wall, but may be provided on the wall constituting the side surface of the detection target surrounding wall.

  The invention made by the present inventor has been specifically described based on the above-described embodiments of the invention. However, the present invention is not limited to the above-described embodiments of the invention and does not depart from the gist thereof. Various changes can be made.

DESCRIPTION OF SYMBOLS 1 Sensor mounting structure 10 Battery module 11 Cell 12 Case (detection target enclosure wall)
12a Upper surface opening 12b Lock protrusion 13 Upper surface cover (detection target enclosure wall)
13a Sensor insertion opening 14 Side cover 20 Protector 20A One end connection protector 20B Both end connection protector 30 Sensor holding / opening closing part 31 Sensor holding part 31a Locking piece 31b Locking hole 32 Opening blocking part 33 Closing main body part 33a Inner surface 33b Edge Installation wall 34 Blocking main body fixing part 35 Lock piece 35a Leg part 35b Bridge part 35c Lock projection 40 Electric wire holding part 40a Electric wire insertion port 41 Holding main body part 41A Trunk holding part 41B Branch holding part 41a Bottom wall part 41b Edge standing wall 41c Partition Wall 42 Electric wire fixing portion 42a Electric wire locking projection 50 Electric wire outlet 51 Tongue piece portion 60 Connection portion 61 Connection piece portion 61a Contact portion 61b Connection protrusion 70 Connection portion 71 Connection piece portion 71a Connection hole 80 Connection member 81 Connection piece portion 81a Contact part 81b Connecting projection 82 Contact part 82a Contact surface 90 Temperature sensor (sensor)
91 detection unit 92 support unit 93 locking projection 100 battery unit B battery BP battery connector (detection target)
W Wire for sensor

Claims (5)

A sensor holding portion serving as a portion for holding the sensor, and a sensor insertion opening formed so that the sensor can be inserted into the detection target enclosure wall that surrounds the detection target of the sensor from the outer surface side of the detection target enclosure wall A plurality of sensor holding / opening blocking portions provided at positions corresponding to all of the plurality of sensor insertion openings formed in the detection target surrounding wall,
An electric wire holding unit for holding a sensor electric wire drawn from the sensor held by the sensor holding unit along a predetermined routing route;
Have
The sensor holding part is held by the sensor holding part by being attached to the outer surface of the detection target enclosure wall in a state where the sensor is held by all or a part of the plurality of sensor holding / opening blocking parts. All the sensor insertion openings including the sensor insertion opening where the sensor is inserted and arranged in the sensor insertion opening at a predetermined detection point and the sensor is not inserted and arranged are the opening blocking portion. A protector characterized by being closed by. In the case where a plurality of the detection target surrounding walls are connected side by side corresponding to the plurality of detection targets, the plurality of protectors corresponding to the detection target surrounding walls have a connecting portion that is connected to each other. The protector according to claim 1. The connecting portion is
The connecting portion of the protector as a connection partner is connected with play in the vertical and horizontal directions in the direction orthogonal to the alignment direction and the plane orthogonal to the alignment direction via a connection member separate from the protector. The protector of Claim 2 characterized by the above-mentioned. The sensor is
A temperature sensor,
The detection object is
The protector according to claim 1, 2 or 3, wherein the protector is a battery connection body in which one battery or a plurality of batteries are connected side by side. A detection object, which is a wall that surrounds the detection object of the sensor, and is formed with a plurality of sensor insertion openings penetrating from the outer surface so that the sensor can be inserted into the inside corresponding to the plurality of detection points inside the wall An enclosure wall,
A position that corresponds to all of the plurality of sensor insertion openings, comprising: a sensor holding portion that is a portion that holds the sensor; and an opening closing portion that closes the sensor insertion opening from the outer surface side of the detection target enclosure wall. A plurality of sensor holding / opening blocking portions provided on the sensor holding portion, and a wire holding portion for holding a sensor electric wire drawn from the sensor held by the sensor holding portion along a predetermined routing route. A protector,
Have
The protector is attached to the outer surface of the detection target enclosure wall in a state where the sensor is held by all or a part of the plurality of sensor holding / opening blocking portions, and the sensor holding All the sensor insertion openings including the sensor insertion openings in which the sensors are inserted and arranged in the sensor insertion openings at predetermined detection points, and the sensors are not inserted and arranged. A sensor mounting structure characterized by being closed by an opening blockage.

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