JPH0627370U - Car battery carrier case - Google Patents

Abstract

(57) [Abstract] [Purpose] To reduce the space for the resonator in the engine room and increase the layout flexibility in the engine room. [Structure] An automobile battery carrier case 11 mounted on the vehicle body 1 side and accommodating a battery 6 therein, and a sealed space 31, 32 between the battery carrier case 11 and the battery 6 in a state where the battery 6 is accommodated therein. The sealed spaces 31 and 32 are configured to be formed, and are connected to the intake duct 5 provided on the engine 4 side through the resonance ducts 8 and 9. With such a configuration, the sealed space functions as a resonator, and the circulation noise of the intake air flowing through the intake duct 5 is resonantly attenuated. Therefore, it is not necessary to dispose a dedicated resonator.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automobile battery carrier case.

[0002]

[Prior art]

 The performance and durability of a battery placed in the engine room of an automobile are easily influenced by the ambient temperature of the surroundings. Therefore, for example, as disclosed in Japanese Utility Model Laid-Open No. Sho 63-180451, By arranging a battery carrier case in the form of an airtight container in the room and accommodating the battery in the battery carrier case, the battery is isolated from the atmosphere in the engine room to maintain its performance or durability. Is widely practiced.

On the other hand, in automobiles, from the viewpoint of realizing quiet engine operation, there is a demand to reduce so-called intake noise, which is the flow noise when intake air is introduced into the engine through the intake duct. In this case, it is known that this can be achieved by enlarging the passage area of the intake duct to reduce the intake flow velocity, but if such a configuration is adopted, the intake duct becomes larger. For this reason, a resonator having a predetermined volume is conventionally provided, and this is connected to an intake duct via a resonance duct, and the resonance damping action of the resonator causes a resonance noise to be recognized as intake noise, particularly noise. The method is to effectively reduce the intake sound of the band.

[0004]

[Problems to be solved by the device]

 However, in recent years, the bonnet line has tended to be lowered in consideration of the aerodynamic characteristics of the vehicle body, so that the volume of the engine room tends to decrease accordingly. The demand for the use of engine has inevitably led to an increase in engine accessories, and as a synergistic effect of the two, it has already been said that the layout space in the engine room is insufficient and the degree of freedom in layout design is reduced. Have been pointed out.

In view of this, the invention of the present application aims to reduce the occupied space of the resonator in the engine room by providing the battery carrier case with a function as a resonator so as to increase the degree of freedom in the layout design of the engine room. It is designed to provide a carrier case.

[0006]

[Means for Solving the Problems]

 As a concrete means for solving such a problem in the invention of the present application, in the invention of claim 1, a battery carrier case of an automobile mounted on a vehicle body side and having a battery accommodated therein, and a battery accommodated in the interior thereof In this state, a sealed space is formed between the battery and the sealed space, and the sealed space is connected to an intake duct provided on the engine side through a resonance duct.

According to a second aspect of the invention, in the automobile battery carrier case according to the first aspect, the sealed space is airtightly isolated from the upper surface portion of the battery.

[0008]

[Action]

 With each of the inventions of the present application, the following actions can be obtained with such a configuration.

According to the first aspect of the present invention, since the sealed space of the battery carrier case is connected to the intake duct via the resonance duct, the sealed space functions as a resonator having a predetermined volume, thereby reducing intake noise. Of these, the intake sound of a specific frequency corresponding to the volume of the sealed space, the passage diameter of the resonance duct, etc. is resonantly attenuated, and the intake sound level as a whole is lowered.

According to the second aspect of the invention, in addition to the above-described action, the upper surface of the battery is airtightly isolated from the sealed space, so that the terminal portion arranged on the upper surface of the battery is rusted. It is possible to surely prevent impurities such as impurities from entering the intake air.

[0011]

[Effect of device]

 Therefore, according to the vehicle battery carrier case of each invention of the present application, the following effects can be obtained.

(A) According to the battery carrier case for an automobile of claim 1, since the sealed space provided in the battery carrier case can be used as a resonator, compared with the case where a dedicated resonator is provided, The layout space for the resonator in the engine room in the case of the whole vehicle can be reduced by the amount replaced by the resonator function of the sealed space, and as a result, the flexibility in layout design of the engine room is increased. It is a thing.

In particular, if the sealed space of the battery carrier case can satisfy all the resonator capacities required for reducing the intake noise, it is not necessary to provide a dedicated resonator, and the number of parts is reduced accordingly. The cost can be reduced and the flexibility of the engine room layout design can be further increased.

(B) According to the vehicle battery carrier case of the second aspect, in addition to the effect described in the above (a), it is possible to ensure that impurities such as rust of the battery terminal or reaction gas is mixed into the intake air. Since this can be prevented, it is possible to obtain the effect that the operating performance of the engine can be maintained in a good state even though a part of the battery carrier case is used as a resonator.

[0015]

[Embodiment] Hereinafter, a battery carrier case for an automobile according to the present invention will be described in detail based on an embodiment. FIG. 1 shows two engine compartments located in a front portion of a vehicle body 1. In the figure, reference numeral 3 is a front side frame located on both left and right sides of the engine room 2, and an engine 4 is mounted at a substantially intermediate position between the pair of front side frames 3, 3. The surge tank 16 attached to the engine 4 is supplied with intake air through an intake duct 5 including an upstream duct 5A located upstream of the air cleaner 19 and a downstream duct 5B located downstream. It

Further, a battery carrier unit 10, which is the gist of the present invention, is arranged at a position near the rear of the air cleaner 19 in the direct vehicle body direction. The battery carrier unit 10 accommodates the battery 6 in a battery carrier case 11 which will be described later, and uses a part of the internal space thereof as a resonator. It is fixedly arranged on the vehicle body 1 side by being supported by the wheel apron 15 via (see FIG. 2).

As shown in FIGS. 2 and 3, the battery carrier case 11 has a rectangular frame shape having a size and shape such that a relatively large gap is formed around the battery 6 when the battery 6 is accommodated therein. It has a lower case 11A and an upper case 11B which is fitted on the upper end side of the lower case 11A and closes the opening. The lower case 11A and the upper case 11B are kept closed by elastically fitting the concave streak portion 36 on the upper case 11B side to the convex streak portion 35 formed on the lower case 11A side. Has become.

The lower case 11A has a communication port 13 formed in a part of its peripheral wall 11Aa so as to communicate with the inner space thereof, and has a bottom plate 11Ab in which a fixing bolt 24 is screwed and nuts 25, 25 and a concave shape. Seat portions 40, 40, ... Are formed. The lower case 11A is mounted on the upper surface of the support bracket 7 with the bottom plate 11Ab thereof, and the bolt 41 attached to the seat portion 40 is screwed into the nut 42 on the support bracket 7 side. It is fastened and fixed to side 1.

On the other hand, in the upper case 11B, a substantially dish-shaped partition member 12 is attached to the inner surface side of the top plate 11Bb of the upper case 11B, and a first space 31 of a predetermined size is provided between them (the utility model registration claim). (Corresponding to a sealed space therein) is formed, and the first space 31 is communicated with the outside through a communication port 14 provided in the peripheral wall 11Ba thereof.

The battery 6 is housed and fixed in the battery carrier case 11 configured as described above. That is, with the upper case 11B removed from the lower case 11A, the battery 6 is housed in the lower case 11A, and on the upper surface of the battery 6, a pair of corner pressing members 21, 21 and these corner pressing members 21, The battery retainer 20 including the connecting member 22 that connects the battery 21 is placed, and both ends of the battery retainer 20 are fastened to the bottom plate 11Ab side by the pair of left and right fixing bolts 24, so that the battery 6 becomes the battery carrier case 11. Fixed on the side. When the battery 6 is housed and fixed in the battery carrier case 11, a gap of a predetermined size is formed over the entire circumference between the peripheral wall 11Aa of the battery carrier case 11 and the side surface 6b of the battery 6. .

Therefore, in this embodiment, a seal member 17 is interposed between the side surface 6b of the battery 6 and the peripheral wall 11Aa of the battery carrier case 11 in order to use this gap as a resonator. That is, a pair of left and right extending portions 23, 23 extending downward from both ends of the battery retainer 20 has a rectangular frame shape surrounding the side surface 6b of the battery 6 at a predetermined distance. The seal mounting member 18 is mounted, and the seal mounting member 18 is mounted with the seal member 17 from below. When the battery 6 is housed in the lower case 11A, the side surface 6b of the battery 6 and the peripheral wall 11Aa of the lower case 11A are sealed by the sealing member 17.

In the state where the upper case 11B is fitted and arranged in the lower case 11A in which the battery 6 is housed and fixed via the seal member 17 as described above, as shown in FIG. A second space 32 of a predetermined size (corresponding to a sealed space in the scope of utility model registration claims) communicating with the outside through the communication port 13 is provided on the side, and an upper side of the seal member 17 is provided on the side. A third space 33 facing the upper surface 6a of the battery 6 is formed between the partition member 12 of the upper case 11B and the partition member 12. The second space 32 and the first space 31 formed on the lower case 11A side are in a state of being airtightly isolated from the third space 33. The third space 33 is communicated to the outside through a harness outlet 26 that includes a notch 27 formed on the lower case 11A side and a notch 28 formed on the upper case 11B side. A harness (not shown) connected to the terminals 45, 45 on the upper surface 6a side of the battery 6 is inserted into the harness outlet 26.

The communication port 13 and the communication port 14 of the battery carrier unit 10 configured as described above are connected to the intake duct 5 side as shown in FIG. That is, the communication port 13 communicating with the second space 32 is connected to the upstream duct 5A via the resonance duct 8, and the communication port 14 communicating with the first space 31 is connected via the resonance duct 9 to the downstream side. Each is connected to the side duct 5B.

When the battery carrier unit 10 and the intake duct 5 are connected via the resonance ducts 8 and 9 in this way, the first space 31 and the second space 32 are made to function as a resonator having a predetermined volume. The intake sound of the intake air that is drawn into the engine 4 side through the intake duct 5 can be effectively resonated and damped, whereby the quiet operation of the engine 4 is realized. In this case, by appropriately setting the volumes of the first space 31 and the second space 32 or the sizes of the resonance ducts 8 and 9 connected to the first space 31 and the like, it is easy for a person to recognize the intake sound as noise. It is possible to select a frequency sound and attenuate it positively.

When the first spaces 31, 32 formed in the battery carrier case 11 are used as resonators in this way, the capacity of the dedicated resonator can be reduced by the amount replaced by the respective spaces 31, 32. In some cases, it is not necessary to install a dedicated resonator, so the space occupied by the resonator in the engine room 2 is reduced, and the degree of freedom in layout design of the engine room 2 is increased accordingly.

Further, since the third space 33 of the battery carrier case 11 is airtightly isolated from the first space 31 and the second space 32, the first and second spaces 3 1, 32 are provided. Even if is connected to the intake duct 5, it is possible to surely prevent impurities such as rust in the terminal 45 portion of the battery 6 or reaction gas from being mixed into the intake air. Therefore, the operating performance of the engine 4 is always maintained good regardless of the configuration in which a part of the battery carrier case 11 is used as a resonator.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part of an automobile including a battery carrier case according to the present invention.

2 is a II-II enlarged arrow view of FIG. 1. FIG.

FIG. 3 is an exploded perspective view of a main part of a battery carrier case portion shown in FIG.

[Explanation of symbols]

1 is a vehicle body, 2 is an engine room, 3 is a front side frame, 4 is an engine, 5 is an intake duct, 5A is an upstream duct, 5B is a downstream duct, 6 is a battery, 7 is a support bracket, 8 is a resonance duct, 9 is a resonance duct, 10
Is a battery carrier unit, 11 is a battery carrier case, 11A is a lower case, 11B is an upper case, 12 is a partition member, 13 is a communication port, 14 is a communication port, 15 is a wheel apron, 17 is a sealing member, 18
Is a seal mounting member, 19 is an air cleaner, 20 is a battery retainer, 21 is a square retainer, 22 is a connecting member, 23 is an extending portion, 24 is a fixing bolt, 25 is a nut, 26 is a harness outlet, 27 is a notch, 28 is a notch, 31 is the first space, 3
Reference numeral 2 is a second space, 33 is a third space, 35 is a convex stripe portion, 36 is a concave stripe portion, and 45 is a terminal.

Claims (2)

[Scope of utility model registration request] 1. A battery carrier case for an automobile, which is mounted on a vehicle body side and in which a battery is housed, wherein the battery carrier case is sealed between the battery and the battery when the battery is housed therein. A battery carrier case for an automobile, wherein a space is formed and the sealed space is connected to an intake duct provided on the engine side through a resonance duct. 2. The battery carrier case for an automobile according to claim 1, wherein the sealed space is airtightly isolated from an upper surface portion of the battery.