JP2010061813A - Fuse block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuse block with high versatility, capable of flexibly dealing with changes of protrusion dimensions or protrusion shapes of a means for fixing a fuse housing to a battery. <P>SOLUTION: The fuse block is provided with metal plates 13, 14 for mounting integrated with a fuse housing 11 by insertion molding as a means to fix the fuse housing 11 to a battery 3. Protrusion end parts 13a, 14a of the metal plates 13, 14 for mounting protruded from the fuse housing 11 are enabled to be suitably adapted to various kinds of protrusion dimensions or protrusion shapes of the protrusion end parts 13a, 14a by fold-shaping in accordance to a shape of a battery 3 side, thus, high versatility can be obtained by corresponding to changes of a protrusion dimensions or protrusion shapes flexibly. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a battery direct-attached type fuse block that enables electric wire connection via a fuse to a battery without going through a fuse box installed away from the battery.

  FIG. 10 and FIG. 11 show a conventional example of a battery direct-attached type fuse block that enables electric wire connection via a fuse to a battery without going through a fuse box installed away from the battery. It is.

  The fuse block 101 shown here is disclosed in the following Patent Document 1, and includes a plurality of circuits connected to a bus bar 111 and a plurality of protective body connecting plate portions 113 integrally formed at one end of the bus bar 111. A protective body 121, a plurality of circuit connection terminals 131 connected to the bus bar 111 via the circuit protection body 121, and a resin that accommodates and holds the bus bar 111, the circuit protection body 121, and the plurality of circuit connection terminals 131. And a fuse housing 141 made of metal.

The bus bar 111 extends along the upper surface 103a of the battery 103 and is electrically connected to the battery post 105, and the bus bar 111 extends from the battery connection plate 112 along the side surface 103b of the battery 103. The part 114 and the plurality of protective body connecting plate parts 113 branched at the tip of the extension part 114 are integrally formed of a metal plate.
The protector connection plate 113 is formed in a terminal structure for fitting and connecting the circuit protector 121.

  The circuit protector 121 shown here is a so-called fusible link, and although a detailed configuration is not shown, a terminal connected to the protector connecting plate 113 and a terminal connected to the circuit connecting terminal 131 The circuit body is provided with a low melting point metal fusible part that melts when a current exceeding the rating flows between the part and a resin case that houses the circuit body.

  The circuit connection terminal 131 is connected to an in-vehicle electrical circuit via a wire harness 151 connected to the circuit connection terminal 131.

  As shown in FIG. 11, such a fuse block 101 is mounted on the battery 103 with an L-shaped layout straddling the one edge portion of the upper edge of the battery 103, so that the position of the center of gravity of the fuse block 101 is It can be brought close to the post 105 and is effective in reducing the occupied space when attached to the battery 103 and improving the vibration resistance performance by reducing the bending moment acting on the connecting portion to the battery 103.

  However, in recent years, the number of wire harnesses 151 connected to the fuse block 101 has increased due to an increase in in-vehicle electrical circuits, and accordingly, the load acting on the fuse block 101 from the wire harness 151 and the like has also increased.

  Therefore, in order to prevent the bus bar 111 from being damaged due to an excessive load or vibration acting on the bus bar 111 due to the load from the wire harness 151 or the vibration transmitted from the vehicle, the fuse block 101 includes the bus bar 111. Structural reduction is required to reduce the load acting on the surface and to suppress the vibration acting on the surface.

  In the case of the fuse block 101 described above, as a structure for reducing the load acting on the bus bar 111 and suppressing the vibration, a resin frame 161 that is mounted on the upper surface of the battery 103 in a crown manner on the upper surface of the battery 103. The frame body 161 is provided with a locking portion 163 for fixing the fuse housing 141 of the fuse block 101. The fuse housing 141 is integrally formed with a connection projection 143 that engages with the locking portion 163 so that the fuse housing 141 itself is fixed to the battery 103 via the frame 151.

  That is, in the fuse block 101 described above, the bus bar 111 receives the load acting from the wire harness 151 at the connecting portion between the connecting protrusion 143 formed integrally with the fuse housing 141 and the locking portion 163 of the frame body 161. The load that acts is reduced.

  In addition, by connecting the connecting projection 143 and the locking portion 163, the mounting posture of the fuse housing 141 to the battery 103 is stabilized and the rattling is eliminated, thereby improving the vibration resistance performance.

  As described above, the resin-made connecting projection is integrally formed on the resin-made housing to be attached to the battery, and the connecting projection is brought into contact with the surface of the battery or engaged with the battery side. Thus, techniques for reducing loads and vibrations acting on bus bars and connection terminals connected to the battery posts are also described in Patent Documents 2 and 3 below.

Japanese Utility Model Publication No. 64-48850 Japanese Utility Model Publication 2-74762 JP-A-11-260344

  However, in the case of the conventional fuse block 101 in which the resin connection projection 143 to be brought into contact with or engaged with the battery side is integrally formed on the resin fuse housing 141 itself, the generality is poor and the specification of the battery 103 to be mounted is not provided. When it is necessary to change the protruding dimensions or shape of the connecting projection 143 due to changes, a large measure is required to recreate the entire fuse housing 141, which makes it easy to change the specifications of the battery to be installed. There was a problem that it was not possible to cope with.

  In addition, in the case of the resin connection projection 143, it is difficult to ensure a high strength compared to the metal material. For example, the connection projection 143 is made thin or narrow in order to make the fuse block 101 compact. If this is done, the strength of the connecting protrusion 143 may be insufficient, and as a result, the original role of reducing the load acting on the bus bar 111 and suppressing vibrations may not be sufficiently achieved.

  For this reason, there is a drawback that it is difficult to make the fuse block compact by reducing the thickness and width of the connecting protrusion 143.

  The object of the present invention is to solve the above-mentioned problems, and even when the specification of the battery to be installed needs to be changed, the protrusion size and the shape of the means for fixing the fuse housing to the battery need to be changed. A fuse that does not require major measures such as complete rework, has high versatility that can be easily handled, and can be made compact by thinning and narrowing the means for fixing the fuse housing to the battery To provide a block.

The above-described object of the present invention is achieved by the following configuration.
(1) A battery connection plate extending along the upper surface of the battery and electrically connected to the battery post, and extending from the battery connection plate along the side of the battery and connected to the circuit protector A bus bar in which a plurality of protective body connecting plate portions are integrally formed of a metal plate;
A plurality of circuit connection terminals made of a metal plate for connection to an electrical circuit, electrically connected to the protection body connection plate portion via the circuit protection body,
A resin fuse housing that holds and holds the bus bar, the circuit protector, and the plurality of circuit connection terminals in an L shape across one ridge line portion of the battery;
A fuse block directly attached to the battery,
The fuse housing is insert-molded with a mounting metal plate that can be bent at a protruding end protruding from the fuse housing.
The fuse block is fixed to the battery by engaging the projecting end with a side surface of the battery or a surrounding structure.

(2) The fuse block according to (1), wherein the mounting metal plate is integrally formed with the bus bar or the circuit connection terminal.

(3) The fuse block according to (2), wherein the mounting metal plate is connected to a portion of the bus bar where heat generation is large.

(4) The fuse block according to (2) or (3), wherein an insulating coating is applied to an outer surface of the protruding end portion.

(5) The fuse block according to (1), wherein the mounting metal plate is provided as an independent component that is not electrically connected to the bus bar and the circuit connection terminal.

(6) The fuse block according to (5), wherein one end of the mounting metal plate is provided in the vicinity of the bus bar and the circuit connection terminal.

  According to the configuration of (1) above, the means for fixing the fuse housing to the battery in order to reduce the load acting on the bus bar and to suppress the vibration is for mounting integrally mounted on the resin fuse housing by insert molding. By bending the protruding end portion that is a metal plate and protrudes from the fuse housing according to the shape on the battery side, the protruding size and protruding shape of the protruding end portion can be adapted to various batteries.

  Therefore, when changing the projection size or shape of the mounting metal plate required in accordance with changes in the specifications of the battery to be mounted, no major measures such as remaking the entire fuse housing are required, and the protruding end of the mounting metal plate is not necessary. It is possible to flexibly and easily cope with the adjustment only by bending the part, and it is possible to obtain high versatility that can be attached to various types of batteries having different mating dimensions.

  In addition, the mounting metal plate has higher mechanical strength than the resin material, so even if it is made thinner or narrower, it can secure high fixing strength with the battery. The fuse block can be made compact by reducing the thickness and width of the metal plate.

  According to the configuration of the above (2), the mounting metal plate is integral with the bus bar or the circuit connection terminal, and exhibits a heat dissipation action that absorbs the heat generated by the bus bar or the circuit connection terminal and dissipates it to the outside. The heat dissipation in the fuse block is improved, and heat storage due to energization heat generation of the bus bar or circuit connection terminal can be prevented.

  Accordingly, it is possible to prevent the operation characteristics of the circuit protection body such as the fuse from being varied due to the heat storage of the bus bar or the circuit connection terminal.

  According to the configuration of (3) above, from the location where the heat generation of the bus bar is large, heat can be quickly absorbed into the mounting metal plate, and can be radiated to the outside through the protruding end portion of the mounting metal plate. It is possible to more effectively prevent the heat accumulation of the bus bar due to energization heat generation.

  According to the configuration of the above (4), the mounting metal plate integrated with the bus bar or the circuit connection terminal is insulated from the protruding end portion protruding from the resin fuse housing by the insulation coating. Even if the portion contacts a metal structure around the battery, the bus bar or the circuit connection terminal is not short-circuited, and safety can be improved.

  According to the configuration of (5) above, since the mounting metal plate is not electrically connected to the bus bar and the circuit connection terminal, the protruding end of the mounting metal plate protruding from the fuse housing has a metal structure around the battery. Even if it comes into contact with an object, a short circuit accident of the bus bar or the circuit connection terminal is not caused, and excellent safety can be provided.

  According to the configuration of (6) above, the mounting metal plate is disposed at one end close to the bus bar or the circuit connection terminal, so that the heat generated by these bus bars or the circuit connection terminal is absorbed and diffused to the outside. In order to exhibit a heat dissipation effect, heat dissipation in the fuse block can be improved, and heat storage due to energization heat generation of the bus bar or circuit connection terminal can be reduced.

  According to the fuse block according to the present invention, the mounting metal plate for fixing the fuse housing to the battery in order to reduce the load acting on the bus bar and to suppress the vibration is adjusted by adjusting the bent portion of the protruding end. And the protruding shape can be adapted to various batteries.

  Therefore, when changing the projection size or shape of the mounting metal plate required in accordance with changes in the specifications of the battery to be mounted, no major measures such as remaking the entire fuse housing are required, and the protruding end of the mounting metal plate is not necessary. It is possible to flexibly and easily cope with the adjustment only by bending the part, and it is possible to obtain high versatility that can be attached to various types of batteries having different mating dimensions.

  In addition, the mounting metal plate has higher mechanical strength than the resin material, so even if it is made thinner or narrower, it can secure high fixing strength with the battery. The fuse block can be made compact by reducing the thickness and width of the metal plate.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a fuse block according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of an embodiment of a fuse block according to the present invention as seen from diagonally above, and FIG. 2 is a perspective view of the fuse block shown in FIG. FIG. 3, FIG. 3 is a view from arrow A in FIG. 2, FIG. 4 is a view from arrow B in FIG. 2, and FIG. 5 is a view from above on the left side with the fuse block shown in FIG. FIG.

  The fuse block 1 of this embodiment is of a battery direct attachment type that enables electric wire connection via a fuse to the battery 3 without going through a fuse box installed away from the battery 3.

  The fuse block 1 according to the present embodiment has a configuration in which a plurality of circuit connection terminals 7a, 7b, 7c, and 7d made of a metal plate are connected to the tip of a bus bar 5 made of a metal plate via a circuit protector (not shown). Fuse element 9, a resin-made fuse housing 11 for accommodating and holding the fuse element 9 in an L shape as shown in the figure, and a pair of mounting metal plates 13, 14 held in the fuse housing 11 by insert molding And a cover 15 attached to the fuse housing 11 so as to be openable and closable.

  The bus bar 5 includes a battery connection plate portion 5a extending along the upper surface 3a of the battery 3, and a plurality of protective body connection plate portions (not shown) provided extending from the battery connection plate portion 5a. Each protector connection plate is connected to a circuit protector (not shown).

  In the case of this embodiment, the circuit protector is a fusible body made of a low melting point metal that melts when a current exceeding the rating flows, and functions as a so-called fuse. It is conceivable to equip a relay element for turning the flow on and off, a light emitting element, and the like.

As shown in FIGS. 1 and 2, the battery connection plate portion 5a of the bus bar 5 is connected to a terminal connection hole 5b through which the stud bolt 21a of the battery terminal 21 is inserted and an external circuit connection portion 5c for connecting an external circuit such as an alternator. And are equipped.
A stud bolt 5d for fastening a terminal from the external circuit is implanted in the external circuit connection portion 5c.

  As shown in FIGS. 2 to 4, the battery terminal 21 is extended to one side of the post connecting portion 21 b and a post connecting portion 21 b fastened to the battery post 3 b protruding from the upper surface 3 a of the battery 3. The fuse block connecting plate portion 21c is provided, and the stud bolt 21a for screwing the battery connecting plate portion 5a is implanted in the fuse block connecting plate portion 21c.

  As shown in FIG. 3, the battery connection plate portion 5 a of the bus bar 5 is connected to the battery terminal 21 by fastening with the battery terminal 21, and is electrically connected to the battery post 3 b via the battery terminal 21.

  A plurality of protective body connection plate portions (not shown) connected to the battery connection plate portion 5a are arranged in a plurality of rows so as to extend along the side surface 3c of the battery 3 and extend from the battery connection plate portion 5a. It is formed by branching into two, and each protective body connecting plate portion is connected to a circuit protective body having a predetermined rating.

  The circuit connection terminals 7a, 7b, 7c, and 7d are metal plate terminal portions that are connected to the protector connection plate portion via a circuit protector (not shown). In this embodiment, the circuit connection terminals 7a, 7b, 7c, and 7d Stud bolts 8a, 8b, 8c, 8d for fastening the terminals are provided.

  The fuse housing 11 accommodates and holds the fuse element 9 in an L shape straddling the one ridge portion 3d of the battery 3 by insert molding.

  As shown in FIG. 2, the fuse housing 11 of the present embodiment includes a first housing portion 11 a that covers and holds the battery connection plate portion 5 a of the bus bar 5, and a protective body connection plate portion (not shown). And a circuit protector and a second housing portion 11b that covers a part of the circuit connection terminals 7a, 7b, 7c, and 7d. The first housing portion 11a and the second housing portion 11b are connected and fixed in an L shape.

  The first housing portion 11a covers the range of the surface of the battery connection plate portion 5a excluding the region that is in conductive contact with the battery terminal 21 and the peripheral region of the stud bolt 5d.

  The portion of the second housing portion 11b that accommodates the circuit protector is covered with the cover 15, and when the cover 15 is opened, the accommodated circuit protector is visible.

  In the case of this embodiment, as shown in FIG. 1, the pair of mounting metal plates 13 and 14 are provided on both side surfaces of the second housing portion 11b.

  Each of the mounting metal plates 13 and 14 is held by the second housing portion 11b by insert molding, and protrudes from the side surface of the second housing portion 11b in parallel with the upper surface 3a of the battery 3. , 14a.

  Each protruding end portion 13a, 14a can be bent according to the structure of the side surface of the battery 3 or its surroundings, and is initially produced in a straight extending form as shown in FIG. The battery 3 is bent and formed into a shape that abuts on the side surface of the battery 3 to be attached or engages with a surrounding structure or the like.

  In the case of this embodiment, as shown in FIG. 2, the protruding end portion 13a protruding on the right side surface of the second housing portion 11b is bent at a right angle in the vicinity of the right side surface of the second housing portion 11b. The tip of the battery 3 is brought into contact with the right side surface 3e of the battery 3 to restrict the swing of the fuse block 1 (the swing in the direction of rotation around the battery post 3b) due to the vibration of the vehicle.

  Further, as shown in FIGS. 3 and 5, the projecting end portion 14a projecting to the left side surface of the second housing portion 11b is bent at a right angle in the vicinity of the left side surface of the second housing portion 11b. The tip portion is formed in a shape extending in parallel with the front side surface 3c of the battery 3, and the tip portion is brought into contact with the front side surface 3c of the battery 3 so as to restrict the vibration of the fuse block 1 due to vehicle vibration or the like. To do.

  In the case of this embodiment, as shown in FIG. 3, the pair of mounting metal plates 13, 14 bring the fuse block 1 into the battery by bringing the protruding end portions 13 a, 14 a into contact with the side surfaces of the battery 3. 3 functions as a fixing bracket.

Although not shown, in the fuse block 1 of the present embodiment, the mounting metal plates 13 and 14 are integrally formed with the bus bar 5.
More specifically, the mounting metal plates 13 and 14 are connected to the bus bar 5 where heat is generated.

  In the fuse block 1 described above, the means for fixing the fuse housing 11 to the battery 3 in order to reduce the load acting on the bus bar 5 and to suppress the vibration is integrally provided in the resin fuse housing 11 by insert molding. The protruding end portions 13a and 14a protruding from the fuse housing 11 are bent according to the shape on the battery 3 side with the mounting metal plates 13 and 14, so that the protruding dimensions and protruding shapes of the protruding end portions 13a and 14a are formed. Can be adapted to various batteries 3.

  Therefore, when changing the protruding dimensions or protruding shape of the mounting metal plates 13 and 14 required in accordance with the change in the specifications of the battery 3 to be mounted, no major measures such as remaking the entire fuse housing are required, and the mounting metal It is possible to respond flexibly and easily only by adjusting the bent end portions 13a and 14a of the plates 13 and 14, and obtain high versatility that can be attached to various types of batteries having different joint dimensions. Can do.

  In addition, since the mounting metal plates 13 and 14 have higher mechanical strength than the resin material, it is possible to ensure high fixing strength with the battery 3 even when the thickness is reduced or the width is reduced. Thus, the fuse block can be made compact by reducing the thickness and width of the mounting metal plates 13 and 14.

  Further, in the fuse block 1 of the present embodiment, the mounting metal plates 13 and 14 are integrated with the bus bar 5 and exhibit a heat dissipation action that absorbs the heat generated by the bus bar 5 and dissipates it to the outside. The heat dissipation is improved, and heat storage due to energization heat generation of the bus bar 5 can be prevented.

  Therefore, it is possible to prevent the operation characteristics of the circuit protection body such as the fuse from being varied due to the heat storage of the bus bar 5.

  Further, in the fuse block 1 of the present embodiment, the mounting metal plates 13 and 14 are connected to a portion where the heat generation of the bus bar 5 is large. , 14 can be absorbed and radiated to the outside through the protruding end portions 13a, 14a of the mounting metal plates 13, 14, and heat storage of the bus bar 5 due to energization heat generation can be more effectively prevented.

The fixing structure by the projecting end portions 13a and 14a of the mounting metal plates 13 and 14 fixedly mounted on the fuse housing 11 by insert molding is not limited to the above embodiment.
For example, as shown in FIG. 6, the protruding end portions 13 a and 14 a may be screwed to the structures 31 and 32 around the battery 3. Further, as shown in FIG. 7, the protruding end portions 13 a and 14 a may be fitted and fixed to slits 34 a and 35 a provided in the structures 34 and 35 around the battery 3.

Further, as shown in FIG. 8, the protruding end portion 13a protruding from the right side surface of the second housing portion 11b contacts the right side surface 3e of the battery 3 in the same manner as in the above embodiment, and The protruding end portion 14 a protruding from the surface may be fixed by being fitted into a slit 35 a provided in the structure 35 around the battery 3.
That is, you may make it employ | adopt a different fixing structure for a pair of protrusion edge part 13a, 14a.

Moreover, in the said embodiment, each protrusion edge part 13a, 14a was the state which the metal surface exposed.
However, as shown in FIG. 9, it is preferable to provide an insulating coating 37 on the outer surfaces of the protruding end portions 13a and 14a to minimize the exposure of the metal surface.

  If the insulating coating 37 is applied only to the range excluding the bent portion, the folding formability of the protruding end portions 13a and 14a can be prevented from being impaired. However, it is also possible to prevent the bending formability from being lowered by applying an insulating coating 37 to the entire projecting end portions 13a and 14a and cutting the insulating coating 37 at the bent portion.

  As shown in FIG. 9, according to the configuration in which the projecting end portions 13 a and 14 a are provided with the insulating coating 37, the bus bar 5 can be used even if these projecting end portions 13 a and 14 a come into contact with the metal structure around the battery 3. The safety can be improved without causing a short circuit accident.

  In the above embodiment, the mounting metal plates 13 and 14 are integrally formed with the bus bar 5, but the mounting metal plates 13 and 14 may be integrally formed with the circuit connection terminals.

  Even in this case, the mounting metal plates 13 and 14 exhibit a heat dissipation action of absorbing the heat generated by the circuit connection terminals and dissipating them to the outside, so that the heat dissipation of the fuse block can be improved.

  In the fuse block according to the present invention, the mounting metal plate that is integrally provided in the fuse housing by insert molding may be provided as an independent component that is not electrically connected to the bus bar and the circuit connection terminal. .

  As described above, when the mounting metal plate is an independent component that is electrically disconnected from the bus bar and the circuit connection terminal, the protruding end of the mounting metal plate protruding from the fuse housing Even if it contacts with a metal structure, the short circuit accident of a bus-bar or a circuit connection terminal is not caused, and the outstanding safety | security can be provided.

  Even when the mounting metal plate is an independent component that is not electrically connected to the bus bar and the circuit connection terminal, one end of the mounting metal plate in the fuse housing is disposed close to the bus bar or the circuit connection terminal. If this is done, the heat generated by these bus bars or circuit connection terminals is absorbed to dissipate to the outside, improving the heat dissipation of the fuse block and reducing the heat storage due to the heat generated by the bus bars or circuit connection terminals. Can be made.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in the fuse block according to the present invention, the number of mounting metal plates to be insert-molded in the fuse housing is not limited to the two shown in the above embodiment. Depending on the outer shape of the battery and the structure around the battery, one or three or more mounting metal plates can be provided.

It is the perspective view seen from diagonally upward of one Embodiment of the fuse block which concerns on this invention. FIG. 2 is a perspective view of the fuse block shown in FIG. 1 as viewed from above on the right side surface with the fuse block attached to a battery. FIG. 3 is a view as seen from an arrow A in FIG. 2. FIG. FIG. 2 is a perspective view of the fuse block shown in FIG. 1 as viewed from above on the left side surface with the fuse block attached to a battery. FIG. 6 is a perspective view of a second embodiment of a structure for fixing a protruding end portion of the fuse block shown in FIG. 1 to the battery side. FIG. 9 is a perspective view of a third embodiment of a structure for fixing a protruding end portion of the fuse block shown in FIG. 1 to the battery side. FIG. 7 is a perspective view of a fourth embodiment of a structure for fixing a protruding end portion of the fuse block shown in FIG. 1 to the battery side. FIG. 10 is a perspective view of a fifth embodiment of a structure for fixing a protruding end portion of the fuse block shown in FIG. 1 to the battery side. It is a perspective view which shows the attachment structure to the battery of the conventional fuse block. It is a longitudinal cross-sectional view of the fuse block shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fuse block 3 Battery 3a Upper surface 3b Battery post 3c Front side surface 3d One ridge part 3e Right side 5 Bus bar 5a Battery connection board part 7a, 7b, 7c, 7d Circuit connection terminal 11 Fuse housing 11a 1st housing part 11b 1st 2 Housing part 13 Mounting metal plate 13a Projecting end 14 Mounting metal plate 14a Projecting end 15 Cover 21 Battery terminal 21a Stud bolt 21b Post connecting part 21c Fuse block connecting plate 31, 32 Structure 34, 35 Structure 34a, 35a Slit

Claims (6)

A battery connection plate extending along the upper surface of the battery and conductively connected to the battery post; and a plurality of protections extending from the battery connection plate along the side of the battery and connected to the circuit protector A bus bar integrally formed with a body connecting plate portion with a metal plate;
A plurality of circuit connection terminals made of a metal plate for connection to an electrical circuit, electrically connected to the protection body connection plate portion via the circuit protection body,
A resin fuse housing that holds and holds the bus bar, the circuit protector, and the plurality of circuit connection terminals in an L shape across one ridge line portion of the battery;
A fuse block directly attached to the battery,
The fuse housing is insert-molded with a mounting metal plate that can be bent at a protruding end protruding from the fuse housing.
The fuse block is fixed to the battery by engaging the projecting end with a side surface of the battery or a surrounding structure.   2. The fuse block according to claim 1, wherein the mounting metal plate is integrally formed with the bus bar or the circuit connection terminal.   The fuse block according to claim 2, wherein the mounting metal plate is connected to a portion of the bus bar where heat generation is large.   4. The fuse block according to claim 2, wherein an insulation coating is applied to an outer surface of the protruding end portion. 5.   2. The fuse block according to claim 1, wherein the mounting metal plate is provided as an independent component electrically disconnected from the bus bar and the circuit connection terminal.   6. The fuse block according to claim 5, wherein the mounting metal plate is equipped with one end thereof close to the bus bar and the circuit connection terminal.

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