JP2014201218A - Rechargeable battery fitting structure and vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rechargeable battery fitting structure capable of preventing a spark at a negative electrode terminal of a rechargeable battery, and effectively using a grounding configuration for fixing the rechargeable battery, and a vehicle.SOLUTION: In a rechargeable battery fitting structure 12, a negative electrode terminal of a rechargeable battery 40 is arranged on the near side of an opening 15 of a vehicle, and a positive electrode terminal is arranged on the far side of the opening 15. The structure 12 includes a bus plate connected to the negative electrode terminal and fastening means that electrically connects the bus plate to a vehicle body 14 and fixes an assembly component 44 of the rechargeable battery 40 or the rechargeable battery 40 itself to the vehicle body 14. The structure 12 can be applied to a vehicle 10, for instance.

Description

  The present invention includes a storage battery, a negative electrode terminal and a positive electrode terminal formed at both ends of the storage battery, and the negative battery terminal is electrically connected to a grounding member such as a vehicle body and the storage battery mounting structure The present invention relates to a vehicle including a body.

  In Patent Document 1, the wire-side terminal 8 removed from the battery 1 is simply placed on the vehicle body 3 side securely with a simple structure and with good workability and securely so as not to be removed by the restoring force when the wire 9 is bent. It is an object of the present invention to provide a temporary placement structure for battery-side terminals for a battery ([0009], summary).

  In order to achieve the object, in Patent Document 1, in the structure in which the grounding electric wire side terminal 8 can be connected to and disconnected from the negative electrode terminal 2 on the battery 1 side, the hole 8a of the electric wire side terminal 8 is provided on the vehicle body 3 side. And a locking portion 5 having a hooking piece 22 that can be brought into contact with the surface of the wire side terminal 8 with the back surface of the wire side terminal 8 in contact with the vehicle body 3 side. Provided adjacent to the pin portion 4 (summary). Accordingly, when the terminal 8 is removed from the negative electrode terminal 2 of the battery 1 for vehicle maintenance, transportation, storage, exhibition, etc. ([0004]), the terminal 8 is connected to the pin portion 4 (FIG. 4, [0050]. ]).

JP 2010-120492 A

  According to Patent Document 1, when the grounding electric wire 9 is reconnected to the negative electrode terminal 2, the electric wire side terminal 8 is directly fixed to the negative electrode terminal 2. When such fixing is performed, a spark is easily generated between the negative electrode terminal 2 and the electric wire side terminal 8. In Patent Document 1, no consideration is given to using a grounding configuration for fixing the battery 1.

  The present invention has been made in consideration of the above-described problems, and prevents a spark at the negative electrode terminal of the storage battery and can effectively use the grounding configuration for fixing the storage battery and the storage battery mounting structure. It aims at providing a vehicle provided with a storage battery attachment structure.

  A storage battery mounting structure according to the present invention includes a vehicle storage battery, and a negative electrode terminal and a positive electrode terminal formed at both ends of the storage battery, and the negative electrode terminal is electrically connected to a vehicle body, The storage battery is attached to the vehicle body in the opening of the vehicle, the negative terminal is disposed on the front side of the opening, the positive terminal is disposed on the back side of the opening, and the storage battery The mounting structure includes a bus plate connected to the negative electrode terminal, and fastening means for electrically connecting the bus plate to the vehicle body and fixing the assembly part of the storage battery or the storage battery itself to the vehicle body. It is characterized by that.

  According to the present invention, as the battery assembly or the storage battery itself is fixed to the vehicle body by the fastening means, the negative electrode terminal of the storage battery is electrically connected to the vehicle body via the bus plate and the fastening means. For this reason, the negative electrode terminal of the storage battery is not grounded to the vehicle body until the storage battery assembly part or the storage battery itself is fixed to the vehicle body. Therefore, it is possible to reduce the probability of occurrence of sparks at the negative electrode terminal. Further, both the fixing of the storage battery to the vehicle body and the electrical connection of the negative electrode terminal to the vehicle body are performed by fastening the fastening means. For this reason, it becomes possible to simplify the structure of a storage battery attachment structure, and the removal | desorption operation | work of a storage battery.

  Further, in the present invention, the negative electrode terminal is disposed on the front side of the opening and the positive electrode terminal is disposed on the back side of the opening. For this reason, the operator who attaches a storage battery can fix the positive electrode terminal side first, and can fix the negative electrode terminal side after that. Therefore, it is possible to avoid the occurrence of sparks by fixing the negative terminal side first and then fixing the positive terminal side.

  An insulating mounting protrusion may be formed on the bus plate at an end of the bus plate on the back side of the opening. The mounting projection is formed on the back side of the opening portion of the bus plate, so that the mounting projection is positioned on the back side of the fastening means. For this reason, the operator who attaches or removes the storage battery can easily perform the fastening or removing of the fastening means. In addition, the presence of the mounting protrusion makes it difficult for the operator to misidentify the orientation of the bus plate. For this reason, it is possible to prevent erroneous attachment of the bus plate and improve the efficiency of the attachment work.

  The mounting projection may be made of a resin insert-molded on the bus plate. As a result, it is possible to prevent positional displacement between the bus plate and the mounting projection and to prevent rattling noise.

  The storage battery can be, for example, a capacitor. Usually, activated carbon is used for electrodes of capacitors such as electric double layer capacitors. For this reason, activated carbon takes in a charge like a sponge and a residual charge is generated. According to the present invention, it is possible to reduce the probability of occurrence of sparks at the negative electrode terminal even when there is residual charge in the capacitor and sparks are likely to occur at the negative electrode terminal.

  A voltage control unit that controls the voltage of the capacitor may be provided, and the voltage control unit may lower the voltage of the capacitor when the vehicle is turned off, compared to when the vehicle is turned on. Thereby, when the ignition is turned off, the voltage of the capacitor is lowered, so that it is possible to further reduce the probability of occurrence of a spark when the capacitor is removed or reattached.

  The opening may include a recess provided for storing a spare tire below a luggage compartment at the rear of the vehicle, and the storage battery may be attached to a left side surface or a right side surface in the recess. Thereby, the worker can easily attach or remove the storage battery on the rear side of the vehicle.

  The negative terminal includes a negative side bolt part protruding in a direction away from the vehicle body, and the bus plate has a negative side bolt hole for inserting the negative side bolt part and grounding as the fastening means. A vehicle body side bolt hole for inserting a bolt is formed, and a front side bolt hole for inserting the grounding bolt is formed in the assembly part of the storage battery or the storage battery itself, and the storage battery mounting structure is A nut that is coupled to the negative-side bolt portion inserted into the negative-side bolt hole and fixes the bus plate to the negative-electrode terminal, wherein the grounding bolt includes the vehicle body-side bolt hole and the near-side bolt hole The bus plate and the storage battery assembly part or the storage battery itself may be fixed to the vehicle body by being inserted into the vehicle body and fastened to the vehicle body. Thereby, it becomes possible to make a bus plate into a simple structure.

  The assembly part of the storage battery or the storage battery itself includes a front side protruding part that protrudes toward the front side of the opening part, and a back side protruding part that protrudes toward the back side of the opening part. The front side bolt hole is formed in the projecting part, and the rear side bolt hole for inserting the non-grounding bolt for fixing the storage battery assembly part or the storage battery itself to the vehicle body is formed in the rear side projecting part. The storage battery assembly part or the storage battery itself may be fixed to the vehicle body by at least the grounding bolt and the non-grounding bolt. As a result, a pair of grounding bolts and non-grounding bolts that are not used for grounding can be used for fixing the storage battery.

  A front side positioning hole into which a front side positioning pin provided in the vehicle body is inserted is formed in the front side protruding portion, and a rear side positioning pin provided in the vehicle body is inserted into the rear side protruding portion. A rear side positioning hole may be formed. This makes it possible to fix the nuts, grounding bolts and non-grounding bolts by placing the bus plate with the storage battery assembly parts or the storage battery itself positioned relative to the vehicle body using the front and back positioning pins It becomes. For this reason, workability | operativity of the operator who attaches or removes a storage battery can be improved.

  The vehicle according to the present invention includes the storage battery mounting structure. Thereby, it becomes possible to provide the vehicle which can simplify the structure of a storage battery attachment structure, and the removal | desorption operation | work of a storage battery.

  A storage battery mounting structure according to the present invention includes a storage battery, and a negative electrode terminal and a positive electrode terminal formed at both ends of the storage battery, and the negative electrode terminal is electrically connected to a grounding member that is a grounding body or a grounding housing. The storage battery is attached to the grounding member in an opening formed in the grounding member, the negative terminal is disposed on the front side of the opening, and the positive terminal Is disposed on the back side of the opening, and the storage battery mounting structure further includes a bus plate connected to the negative terminal, the bus plate electrically connected to the grounding member, and the storage battery. And fastening means for fixing the storage battery itself to the vehicle body.

  According to the present invention, the negative electrode terminal of the storage battery is electrically connected to the grounding member via the bus plate and the fastening means as the battery assembly part or the storage battery itself is fixed to the grounding member by the fastening means. . For this reason, the negative electrode of the storage battery is not grounded to the grounding member until the storage battery assembly part or the storage battery itself is fixed to the grounding member. Therefore, it is possible to reduce the probability of occurrence of sparks at the negative electrode terminal. Further, both the fixing of the storage battery to the grounding member and the electrical connection of the negative electrode terminal to the grounding member are performed by fastening the fastening means. For this reason, it becomes possible to simplify the structure of a storage battery attachment structure, and the removal | desorption operation | work of a storage battery.

  Further, in the present invention, the negative electrode terminal is disposed on the front side of the opening and the positive electrode terminal is disposed on the back side of the opening. For this reason, the operator who attaches a storage battery can fix the positive electrode terminal side first, and can fix the negative electrode terminal side after that. Therefore, it is possible to avoid the occurrence of sparks by fixing the negative terminal side first and then fixing the positive terminal side.

  ADVANTAGE OF THE INVENTION According to this invention, while preventing the spark in the negative electrode terminal of a storage battery, it becomes possible to use effectively the structure for grounding for fixation of a storage battery.

1 is a simplified external perspective view of a part of a vehicle according to an embodiment of the present invention. In the said vehicle, it is an expansion external appearance perspective view which abbreviate | omits and shows a part of capacitor attachment structure. It is an external appearance perspective view of the capacitor assembly which comprises the said capacitor attachment structure. FIG. 3 is an external perspective view showing a part of the capacitor assembly in an exploded or omitted manner. It is a figure which shows the circuit containing the capacitor which comprises the said capacitor attachment structure.

A. Embodiment 1 FIG. Arrangement and configuration of capacitor mounting structure 12 [1-1. Overview]
FIG. 1 is a simplified external perspective view of a part of a vehicle 10 according to an embodiment of the present invention. FIG. 2 is an enlarged external perspective view of the vehicle 10 with a part of the capacitor mounting structure 12 (hereinafter also referred to as “structure 12”) as a storage battery mounting structure omitted.

  As shown in FIG. 1, the structure 12 is fixed to the vehicle body 14 in an opening 15 formed in the rear portion of the vehicle 10. The opening 15 is a part generated by opening a tailgate (not shown), and includes a luggage compartment 16 and a recess 18 that is a space for arranging the spare tire 19 below the luggage compartment 16. The structure 12 is fixed to the vehicle body 14 on the left side surface 20 in the recess 18 in the opening 15. As will be described later, the structural body 12 may be disposed in other places.

[1-2. Body 14]
The vehicle body 14 is made of a conductive metal, and a recess 18 is formed in the rear portion of the vehicle 10. The recess 18 is a space for arranging the spare tire 19 below the luggage compartment 16. A cover (not shown) that houses the spare tire 19 and covers the recess 18 is disposed in the recess 18. The structure 12 is fixed to the left side surface 20 in the recess 18, and at this time, the capacitor 40 of the structure 12 is grounded to the vehicle body 14.

  The opening 15 (recessed portion 18) of the present embodiment is disposed at the rear portion of the vehicle 10. For this reason, it is assumed that the worker or the work machine that attaches or removes the structural body 12 is located behind the vehicle 10. Therefore, hereinafter, the side of the opening 15 or the structure 12 that is close to the worker or the working device (for example, the side of the opening 15 that is close to the outside of the vehicle 10) is referred to as “front side”. Further, the side of the opening 15 or the structure 12 that is far from the operator or the working device (for example, the side of the opening 15 that is far from the vehicle 10) is referred to as the “back side”. 1 and 2, the arrow X2 side is the front side, and the arrow X1 side is the back side.

  As shown in FIG. 2, the vehicle body 14 of the present embodiment includes brackets 22 a and 22 b for fixing the structure 12. The bracket 22a is disposed on the front side (rear side of the vehicle 10) of the opening 15 (recessed portion 18). A front side positioning pin 24a for positioning the structure 12 is formed on the bracket 22a (hereinafter, also referred to as “front side bracket 22a”). The bracket 22b is disposed on the back side (front side of the vehicle 10) of the opening 15 (recessed portion 18). A rear positioning pin 24b for positioning the structure 12 is formed on the bracket 22b (hereinafter also referred to as “back bracket 22b”).

[1-3. Capacitor mounting structure 12]
(1-3-1. Overview of capacitor mounting structure 12)
FIG. 3 is an external perspective view of the capacitor assembly 30 constituting the capacitor mounting structure 12. FIG. 4 is an external perspective view showing a part of the capacitor assembly 30 in an exploded or omitted manner. The structure 12 includes a charge / discharge circuit 140 (FIG. 5) in addition to the capacitor assembly 30 (capacitor assembly). The charge / discharge circuit 140 will be described later with reference to FIG.

(1-3-2. Capacitor assembly 30)
(1-3-2-1. Overall Configuration of Capacitor Assembly 30)
As shown in FIGS. 2 to 4, the capacitor assembly 30 (hereinafter also referred to as “assembly 30”) includes a capacitor 40 including a plurality of capacitor modules 42 and a housing 44 of the capacitor 40 (hereinafter “capacitor housing”). 44 ”), a negative electrode terminal 46, a positive electrode terminal 48, a bus plate 50, a nut 52, a grounding bolt 54, a non-grounding bolt 56, an upper cover 58, a negative electrode side cover 60, And a positive electrode side cover 62.

(1-3-2-2. Capacitor 40)
The capacitor 40 functions as a storage battery for the vehicle 10. Each capacitor module 42 of the capacitor 40 is, for example, an electric double layer capacitor module based on a cylindrical shape, but may be another storage battery. The capacitor 40 is attached to the vehicle body 14 (left side surface 20) in the recess 18 of the opening 15. As shown in FIG. 2 and the like, the capacitor modules 42 are arranged side by side from the front side to the back side of the recess 18 (in the directions of the arrows X1 and X2). The capacitor modules 42 are connected to each other in series by a bus bar 64. The basic configuration of the capacitor module 42 can be the same as that described in, for example, JP 2010-087269 A.

(1-3-2-2. Capacitor housing 44)
The capacitor housing 44 accommodates each capacitor module 42 therein, and includes an insulating (for example, resin) first half 66a and a second half 66b. The housing 44 fixes the positional relationship between the capacitor modules 42 and arranges the capacitor modules 42 in a physically linear manner.

  As shown in FIG. 4 and the like, the capacitor housing 44 includes a front side protruding portion 70 and a back side protruding portion 72. The front side protruding portion 70 and the back side protruding portion 72 are used for the purpose of attaching the assembly 30 or the capacitor module 42 to the vehicle body 14. The front side protrusion 70 protrudes from the capacitor 40 toward the front side of the recess 18 (opening 15). The front side protruding portion 70 is formed with a front side bolt hole 80 into which the grounding bolt 54 is inserted and a front side positioning hole 82 into which the front side positioning pin 24a is inserted.

  The back side protrusion 72 protrudes from the capacitor 40 toward the back side of the recess 18. The back side protruding portion 72 is formed with a back side bolt hole 84 for inserting the non-grounding bolt 56 and a back side positioning hole 86 into which the back side positioning pin 24b is inserted.

(1-3-2-2-4. Negative electrode terminal 46 and positive electrode terminal 48)
The negative terminal 46 and the positive terminal 48 are formed at both ends of the capacitor 40. That is, the negative terminal 46 is disposed on the front side of the recess 18 or the capacitor 40, and the positive terminal 48 is disposed on the back side of the recess 18 or the capacitor 40.

  The negative terminal 46 is electrically connected to the front bracket 22 a of the vehicle body 14 via the bus plate 50 and the grounding bolt 54. The negative electrode terminal 46 includes a negative electrode side bolt portion 90 (FIG. 4 and the like) protruding from a portion (the left side surface 20 of the vehicle body 14) to which the structure 12 is fixed.

  A harness 92 is connected to the positive terminal 48. As will be described later, the harness 92 is used to supply power from the capacitor 40 to the starter motor 118 and the like (FIG. 5). Unlike the negative electrode terminal 46, the positive electrode terminal 48 is not electrically connected to the vehicle body 14.

(1-3-2-5. Bath plate 50 and nut 52)
The bus plate 50 is made of a conductive metal (for example, copper), and is used for grounding the negative terminal 46 to the vehicle body 14 and fixing the structure 12 to the vehicle body 14. That is, the bus plate 50 is physically and electrically connected to the negative terminal 46 via the nut 52 and is physically and electrically connected to the bracket 22a of the vehicle body 14 via the grounding bolt 54. The

  As shown in FIG. 4 and the like, the bus plate 50 is formed with a negative side bolt hole 100 for inserting the negative side bolt part 90 and a vehicle body side bolt hole 102 for inserting the grounding bolt 54. .

  In addition, an insulating projection 104 (hereinafter referred to as “mounting projection 104” or “projection 104”) is formed on the inner side of the recess 18 on the bus plate 50. The protrusion 104 protrudes in a direction away from the front protrusion 70 and the left side surface 20 of the vehicle body 14. The protrusion 104 is made of a resin (insulating resin) insert-molded on the bus plate 50.

  As described above, the nut 52 is coupled to the negative side bolt portion 90 inserted into the negative side bolt hole 100 of the bus plate 50 to fix the bus plate 50 to the negative terminal 46.

(1-3-2-6. Grounding bolt 54 and non-grounding bolt 56)
Both the grounding bolt 54 and the non-grounding bolt 56 are used to fix the assembly 30 to the vehicle body 14. In addition, the grounding bolt 54 is used to ground the negative terminal 46 to the vehicle body 14.

  That is, the grounding bolt 54 is inserted into the vehicle body side bolt hole 102 of the bus plate 50 and the front side bolt hole 80 of the front side protruding portion 70 and fastened to the front side bracket 22 a of the vehicle body 14. Thereby, the bus plate 50 and the front side protruding portion 70 are fixed to the vehicle body 14.

  The non-grounding bolt 56 is inserted into the back side bolt hole 84 of the back side protrusion 72 and fastened to the back side bracket 22b of the vehicle body 14.

(1-3-2-7. Upper cover 58, negative electrode side cover 60, and positive electrode side cover 62)
As shown in FIG. 3 and the like, the upper cover 58, the negative electrode side cover 60, and the positive electrode side cover 62 are part of the assembly 30 (especially, electrical parts (electrodes of the capacitor modules 42, the negative electrode terminals 46, and the positive electrode terminals). 48 etc.) is used to protect from dust, water, etc.

  That is, the upper cover 58 covers the upper part of each capacitor module 42 to protect the electrodes and the like of each capacitor module 42. The negative electrode side cover 60 protects the negative electrode terminal 46, the bus plate 50, the nut 52, the grounding bolt 54, and the like by covering the front side protruding portion 70 from above and from the side. The positive electrode side cover 62 protects the positive electrode terminal 48 and the like by covering the back side protrusion 72 from above and from the side.

2. Configuration of Circuit 110 Including Capacitor 40 In order to explain the use and the like of the capacitor 40, the circuit 110 including the capacitor 40 will be described next.

[2-1. Overview]
FIG. 5 is a diagram illustrating a circuit 110 including the capacitor 40. The circuit 110 is used to start or restart the engine 112 and to supply power to the electrical load 114. Furthermore, the circuit 110 of the present embodiment can cause the capacitor 40 to discharge other than charging and supplying power to the electric load 114.

[2-2. Configuration for starting or restarting engine 112]
As a configuration for starting or restarting the engine 112, the circuit 110 includes an ignition switch 116 (hereinafter referred to as “IGSW 116”), a starter motor 118, a 12V battery 120, and an engine electronic control unit 122 in addition to the capacitor 40. (Hereinafter referred to as “engine ECU 122”).

  The IGSW 116 of the present embodiment is a rotary type having a switch knob (not shown), and can select positions of “off”, “ACC” (accessory), and “on” from the left side toward an instrument panel (not shown). . Further, when the IGSW 116 is further turned to the right (clockwise) from the “ON” position, the IGSW 116 becomes the “ST” (engine start) position, and the engine 112 is started. The IGSW 116 may be another switch such as a push button.

  In the circuit 110, a switch 130 for the starter motor 118 is disposed in front of the starter motor 118. The switch 130 is directly connected to the capacitor 40 and is connected to the 12V battery 120 via the contactor 132.

  When the engine 112 is started by the IGSW 116, when the IGSW 116 is turned “ON”, the ON signal Son is output from the IGSW 116 to the contactor 132, and the contactor 132 is turned on. When IGSW 116 is turned to the “ST” (engine start) position, start signal Sst1 is output from IGSW 116 to switch 130, and switch 130 is turned on. As a result, electric power is supplied from the 12V battery 120 and the capacitor 40 to the starter motor 118, and the starter motor 118 operates to rotate the crankshaft (not shown) of the engine 112.

  The engine 112 of the present embodiment performs so-called idle stop. When an idle stop condition such as the vehicle speed of the vehicle 10 having reached a predetermined value or less is satisfied, the engine ECU 122 stops the engine 112. After that, when the restart condition of the engine 112 is satisfied, the engine ECU 122 outputs a restart signal Sst2 to the switch 130, turns on the switch 130, and supplies power from the capacitor 40 to the starter motor 118. As a result, the starter motor 118 is operated to rotate the crankshaft of the engine 112.

[2-3. Configuration for supplying power to electrical load 114]
As a configuration for supplying electric power to the electric load 114, the circuit 110 includes a charge / discharge circuit 140 in addition to the capacitor 40 and the 12V battery 120. The charge / discharge circuit 140 functions as a voltage control unit that controls the voltage of the capacitor 40 by charging or discharging the capacitor 40.

  The 12V battery 120 is directly connected to the electric load 114. For this reason, the electric power according to the request | requirement of the electric load 114 is supplied from the 12V battery 120. FIG. The capacitor 40 is connected to the electric load 114 via the charge / discharge circuit 140. The charge / discharge circuit 140 has a transformer (not shown). For this reason, the charging / discharging circuit 140 can transform the output voltage of the capacitor 40 and supply it to the electric load 114.

[2-4. Configuration for causing capacitor 40 to discharge other than charging and power supply to electric load 114]
As a configuration for causing the capacitor 40 to discharge other than charging and supplying power to the electric load 114, the circuit 110 includes an AC generator 150 (in addition to the capacitor 40, the electric load 114, the IGSW 116, the engine ECU 122, and the charge / discharge circuit 140. Hereinafter referred to as “ACG150”).

  When vehicle 10 decelerates, engine ECU 122 operates ACG 150 to generate regenerative power based on the rotation of engine 112. The regenerative power is supplied to the electric load 114 and the 12V battery 120 and charged to the capacitor 40 via the charge / discharge circuit 140.

  When the IGSW 116 is turned off, a signal (IGSW off signal Soff) indicating that is input to the charge / discharge circuit 140. The charge / discharge circuit 140 has a discharge resistor (not shown). For this reason, when the charge / discharge circuit 140 receives the IGSW off signal Soff, the charge / discharge circuit 140 consumes the electric power of the capacitor 40 by the discharge resistor, and reduces the voltage of the capacitor 40.

3. Effects of the Present Embodiment As described above, according to the present embodiment, the capacitor housing 44 (an assembly part of the capacitor 40 (storage battery)) is fixed to the vehicle body 14 by the grounding bolt 54 (fastening means). Thus, the negative terminal 46 of the capacitor 40 is electrically connected to the vehicle body 14 via the bus plate 50 and the grounding bolt 54. For this reason, the negative terminal 46 of the capacitor 40 is not grounded to the vehicle body 14 until the capacitor housing 44 is fixed to the vehicle body 14. Therefore, it is possible to reduce the probability of occurrence of sparks at the negative electrode terminal 46. Further, both the fixing of the capacitor 40 to the vehicle body 14 and the electrical connection of the negative electrode terminal 46 to the vehicle body 14 are performed by fastening the grounding bolt 54. For this reason, it becomes possible to simplify the structure of the capacitor mounting structure 12 (storage battery mounting structure) and the work of attaching and detaching the capacitor 40.

  Furthermore, in this embodiment, the negative electrode terminal 46 is disposed on the front side of the opening 15 (recessed portion 18), and the positive electrode terminal 48 is disposed on the rear side of the opening 15 (recessed portion 18) (see FIG. 1). For this reason, the operator who attaches the capacitor 40 (storage battery) can fix the positive electrode terminal 48 side first, and can fix the negative electrode terminal 46 side after that. Therefore, it is possible to avoid the occurrence of sparks by fixing the negative electrode terminal 46 side first and then fixing the positive electrode terminal 48 side thereafter.

  In the present embodiment, an insulating mounting protrusion 104 is formed on the bus plate 50 at the end of the bus plate 50 on the back side of the recess 18 (see FIG. 2). The protrusion 104 is located on the back side of the grounding bolt 54 (fastening means). For this reason, an operator who attaches or removes the capacitor 40 can easily fasten or remove the grounding bolt 54. Further, the presence of the protrusion 104 makes it difficult for the operator to misidentify the orientation of the bus plate 50. For this reason, it is possible to prevent erroneous attachment of the bus plate 50 and improve the efficiency of the attachment work.

  In the present embodiment, the mounting protrusion 104 is made of a resin insert-molded on the bus plate 50. Thereby, it is possible to prevent positional displacement between the bus plate 50 and the protrusion 104 and to prevent rattling noise.

  In this embodiment, the capacitor 40 is used as a storage battery. Usually, activated carbon is used for the electrode of the capacitor 40 such as an electric double layer capacitor. For this reason, activated carbon takes in a charge like a sponge and a residual charge is generated. According to the present embodiment, it is possible to reduce the probability of occurrence of sparks at the negative electrode terminal 46 even when there is residual charge in the capacitor 40 and sparks are likely to occur at the negative electrode terminal 46.

  In the present embodiment, the structure 12 includes a charge / discharge circuit 140 (voltage control means) that controls the voltage of the capacitor 40. The charging / discharging circuit 140 causes the capacitor 40 to discharge when the position of the IGSW 116 is turned “off” and the vehicle 10 is turned off. This lowers the voltage of the capacitor 40 when the ignition is off compared to when the ignition is on. Therefore, when the ignition is turned off, the voltage of the capacitor 40 is lowered, so that it is possible to further reduce the probability of occurrence of sparks when the capacitor 40 is removed or reattached.

  In the present embodiment, the opening 15 for attaching the capacitor 40 to the vehicle body 14 includes a recess 18 provided for storing the spare tire 19 below the luggage compartment 16 at the rear of the vehicle 10. It is attached to the left side surface 20 in 18 (refer FIG. 1). Thereby, the operator can easily attach or detach the capacitor 40 on the rear side of the vehicle 10.

  In the present embodiment, the negative electrode terminal 46 includes a negative electrode side bolt portion 90 protruding from the vehicle body 14 (see FIG. 4). The bus plate 50 is formed with a negative electrode side bolt hole 100 for inserting the negative electrode side bolt part 90 and a vehicle body side bolt hole 102 for inserting the grounding bolt 54. A front side bolt hole 80 for inserting the grounding bolt 54 is formed in the capacitor housing 44 (an assembly part of the capacitor 40). Further, the structure 12 (assembly 30) includes a nut 52 that is coupled to the negative electrode side bolt portion 90 inserted into the negative electrode side bolt hole 100 and fixes the bus plate 50 to the negative electrode terminal 46. The grounding bolt 54 is inserted into the vehicle body side bolt hole 102 and the front side bolt hole 80 and fastened to the vehicle body 14, thereby fixing the bus plate 50 and the capacitor housing 44 to the vehicle body 14. Thereby, it becomes possible to make the bus plate 50 into a simple structure.

  In the present embodiment, the capacitor housing 44 includes a front side protruding portion 70 that protrudes toward the near side of the recess 18 (opening 15) and a back side protruding portion 72 that protrudes toward the back side of the recess 18. Provide (see FIG. 4). A front side bolt hole 80 for inserting the grounding bolt 54 is formed in the front side protruding part 70, and a rear side bolt hole 84 for inserting the non-grounding bolt 56 is formed in the rear side protruding part 72. Is done. The capacitor housing 44 is fixed to the vehicle body 14 by at least grounding bolts 54 and non-grounding bolts 56. As a result, the grounding bolt 54 and the non-grounding bolt 56 can be used as a pair for fixing the capacitor 40 or the capacitor housing 44.

  In this embodiment, a front side positioning hole 82 into which a front side positioning pin 24 a provided in the vehicle body 14 is inserted is formed in the front side protruding portion 70, and the back side protruding portion 72 is provided in the vehicle body 14. A rear positioning hole 86 into which the rear positioning pin 24b is inserted is formed (see FIGS. 2 and 4). Thus, the bus plate 50 is arranged in a state where the capacitor housing 44 is positioned with respect to the vehicle body 14 using the front side positioning pins 24a and the back side positioning pins 24b, and the nuts 52, the grounding bolts 54 and the non-grounding bolts 56 are arranged. Can be fixed. For this reason, the workability of the worker who attaches or removes the capacitor 40 can be improved.

B. Modifications It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted based on the description of the present specification. For example, the following configuration can be adopted.

1. Application target In the above-described embodiment, the capacitor mounting structure 12 is applied to the vehicle 10, but the present invention is not limited thereto, and may be applied to another target. For example, the structure 12 can be used for a moving body such as a ship or an aircraft. Alternatively, the structure 12 may be applied to a robot, a manufacturing apparatus, or a home appliance. In these cases, the negative electrode terminal 46 is electrically connected to a grounding member (for example, a grounding body or a grounding housing) corresponding to the vehicle body 14.

2. Capacitor mounting structure 12 (storage battery mounting structure)
[2-1. overall structure]
In the above embodiment, the structural body 12 is arranged in the recess 18 formed in the rear portion of the vehicle 10 (that is, a part of the opening 15 generated by opening a tailgate (not shown)). However, for example, if attention is paid to the use of the bus plate 50 and the grounding bolt 54, the structure 12 may be disposed in other parts. For example, the structure 12 can be disposed in an opening generated by opening a door or a bonnet. When the structure 12 is disposed in the opening due to the opening of the door, for example, the capacitor 40 can be attached below the seat. Moreover, when arrange | positioning the structure 12 in the opening part by having opened the bonnet, attaching the capacitor 40 to an engine room can be considered. In addition, the opening part here may be not only a bottomed opening part like the recessed part 18 but also a hollow opening part having no bottom part.

  In the above embodiment, the structural body 12 is disposed on the left side surface 20 of the recess 18 formed in the rear portion of the vehicle 10. However, for example, when attention is paid to the use of the bus plate 50 and the grounding bolt 54, the structural body 12 May be arranged on other surfaces (right side surface, bottom surface, back surface or near surface).

  In the above embodiment, the structural body 12 includes the charge / discharge circuit 140 (voltage control means). However, for example, if the focus is on using the bus plate 50 and the grounding bolt 54, the charge / discharge circuit 140 is not provided. Configuration is also possible.

  In the above embodiment, the capacitor 40 is fixed to the vehicle body 14 via the front side protrusion 70 and the back side protrusion 72. For example, if attention is paid to the use of the bus plate 50 and the grounding bolt 54, the capacitor 40 itself May be directly fixed to the vehicle body 14.

  In the above embodiment, the capacitor housing 44 is fixed to the vehicle body 14 using the grounding bolt 54 and the non-grounding bolt 56. For example, from the viewpoint of attaching the capacitor housing 44 to the vehicle body 14, other than that Means may be used. For example, instead of the non-grounding bolt 56, a first hook-like portion (not shown) is provided on the housing 44, and a second hook-like portion corresponding to the first hook-like portion is provided on the vehicle body 14 side, whereby the positive terminal 48 side Can also be fixed.

  In the above-described embodiment, the positioning pins 24a and 24b are used. However, for example, if the bus plate 50 and the grounding bolt 54 are used, a configuration in which the positioning pins 24a and 24b are not used is possible.

[2-2. Capacitor 40 (storage battery)]
In the above embodiment, the capacitor 40 (storage battery) is composed of a plurality of capacitor modules 42. However, for example, if attention is paid to the function (power supply, etc.) of the storage battery, the number of capacitor modules 42 may be one.

  In the said embodiment, although the capacitor 40 was used as a storage battery, another storage battery may be sufficient. As such a storage battery, for example, a secondary battery such as a nickel metal hydride battery or a lithium ion battery, or a primary battery such as a fuel cell can be used.

[2-3. Capacitor housing 44 (assembled part of storage battery)]
The capacitor housing 44 of the above embodiment basically covers the entire capacitor module 42 (see FIG. 4), but the capacitor 40 is attached to the vehicle body 14 or the capacitor modules 42 are combined as the capacitor 40. From the viewpoint of the assembly part, an assembly part other than the capacitor housing 44 shown in FIG. 4 may be used. For example, a connecting portion that connects the capacitor modules 42 only in a part on the upper side and a part on the lower side in the vertical direction (Z1, Z2 direction) can be used as the assembly component.

[2-4. Bus plate 50]
In the above-described embodiment, the bus plate 50 is shaped as shown in FIG. 4. For example, the function of the bus plate 50 (for example, the bus plate 50 is physically and electrically connected to the negative terminal 46 and is connected to the vehicle body by the fastening means. If the function is physically fixed to 14 and electrically connected, the shape of the bus plate 50 can be changed as appropriate.

  In the above embodiment, the mounting protrusion 104 is formed on the bus plate 50. However, for example, when attention is paid to the function of the bus plate 50 as described above, a configuration in which the mounting protrusion 104 is not provided is also possible.

  Furthermore, in the above-described embodiment, the mounting protrusion 104 is formed on the bus plate 50 by insert molding. For example, from the viewpoint of the insulating member formed on the conductive bus plate 50, a method other than insert molding is used. The mounting protrusion 104 may be formed by (for example, adhesion using an adhesive or heat welding).

  In the above embodiment, the negative electrode terminal 46 and the bus plate 50 are connected using the negative electrode side bolt portion 90 and the nut 52. However, from the viewpoint of connecting the negative electrode terminal 46 and the bus plate 50, other than that. A method is also possible. For example, a bolt portion may be provided on the bus plate 50 side and a nut 52 may be used on the negative electrode terminal 46 side. Alternatively, the negative terminal 46 and the bus plate 50 may be welded.

  In the above embodiment, the vehicle body 14 and the bus plate 50 are connected using the grounding bolt 54 and the bracket 22a. However, from the viewpoint of connecting the vehicle body 14 and the bus plate 50, other methods are possible. It is. For example, a grounding bolt 54 may be inserted into the bus plate 50 from the vehicle body 14 side, and a nut may be provided on the bus plate 50.

[2-5. Grounding bolt 54 (fastening means)]
In the above embodiment, the grounding bolt 54 is used as a fastening means for electrically connecting the bus plate 50 to the vehicle body 14 and fixing the capacitor housing 44 (an assembly part of the storage battery) to the vehicle body 14. However, if attention is paid to the function of the fastening means, a member other than the grounding bolt 54 can be used as the fastening means. As such fastening means, for example, a grounding nail may be used.

10 ... Vehicle 12 ... Capacitor mounting structure (storage battery mounting structure)
DESCRIPTION OF SYMBOLS 14 ... Vehicle body (member for grounding) 15 ... Opening part 16 ... Cargo compartment 18 ... Recessed part 19 ... Spare tire 20 ... Left side surface 24a ... Front side positioning pin 24b ... Back side positioning pin 40 ... Capacitor (storage battery) 44 ... Capacitor housing (Assembly parts)
46 ... negative terminal 48 ... positive terminal 50 ... bus plate 52 ... nut 54 ... grounding bolt (fastening means) 56 ... non-grounding bolt 70 ... front side protrusion 72 ... back side protrusion 80 ... front side bolt hole 82 ... front side Side positioning hole 84 ... Back side bolt hole 86 ... Back side positioning hole 90 ... Negative side bolt part 100 ... Negative side bolt hole 102 ... Car body side bolt hole 104 ... Mounting projection 116 ... Ignition switch 140 ... Charge / discharge circuit (voltage control) Part)

Claims (10)

A storage battery mounting structure including a vehicle storage battery, and a negative electrode terminal and a positive electrode terminal formed at both ends of the storage battery, wherein the negative electrode terminal is electrically connected to a vehicle body,
The storage battery is attached to the vehicle body in the opening of the vehicle,
The negative electrode terminal is disposed on the front side of the opening, and the positive electrode terminal is disposed on the back side of the opening,
Furthermore, the storage battery mounting structure is
A bus plate connected to the negative terminal;
And a fastening means for electrically connecting the bus plate to the vehicle body and fixing an assembly part of the storage battery or the battery itself to the vehicle body. The storage battery mounting structure according to claim 1,
The storage battery mounting structure, wherein the bus plate has an insulating mounting protrusion formed at an end of the bus plate on the back side of the opening. The storage battery mounting structure according to claim 2, wherein the mounting protrusion is made of a resin insert-molded on the bus plate. In the storage battery attachment structure according to any one of claims 1 to 3,
The storage battery mounting structure, wherein the storage battery is a capacitor. The storage battery mounting structure according to claim 4,
A voltage control unit for controlling the voltage of the capacitor;
The storage battery mounting structure, wherein when the vehicle is turned off, the voltage control unit lowers the voltage of the capacitor compared to when the vehicle is turned on. In the storage battery mounting structure according to any one of claims 1 to 5,
The opening includes a recess provided for storing a spare tire below a luggage compartment at the rear of the vehicle.
The storage battery is attached to a left side surface or a right side surface in the recess. In the storage battery mounting structure according to any one of claims 1 to 6,
The negative electrode terminal includes a negative side bolt portion protruding in a direction away from the vehicle body,
The bus plate is formed with a negative side bolt hole for inserting the negative side bolt part and a vehicle body side bolt hole for inserting a grounding bolt as the fastening means,
The assembly part of the storage battery or the storage battery itself is formed with a front side bolt hole for inserting the grounding bolt,
The storage battery mounting structure includes a nut that is coupled to the negative side bolt part inserted into the negative side bolt hole and fixes the bus plate to the negative terminal,
The grounding bolt is inserted into the vehicle body side bolt hole and the front side bolt hole and fastened to the vehicle body, thereby fixing the bus plate and the storage battery assembly or the storage battery itself to the vehicle body. A storage battery mounting structure characterized by the above. The storage battery mounting structure according to claim 7,
The assembled part of the storage battery or the storage battery itself includes a front side protruding part that protrudes toward the front side of the opening part, and a back side protruding part that protrudes toward the back side of the opening part,
The front side bolt hole is formed in the front side protruding portion,
The back side protruding portion is formed with a back side bolt hole for inserting a non-grounding bolt for fixing the battery assembly part or the battery itself to the vehicle body,
The storage battery mounting structure, wherein the storage battery assembly or the storage battery itself is fixed to the vehicle body by at least the grounding bolt and the non-grounding bolt. The storage battery mounting structure according to claim 8,
A front side positioning hole into which a front side positioning pin provided in the vehicle body is inserted is formed in the front side protruding portion, and a back side positioning pin provided in the vehicle body is inserted into the rear side protruding portion. A storage battery mounting structure characterized in that a rear positioning hole is formed.   A vehicle comprising the storage battery mounting structure according to any one of claims 1 to 9.

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