KR20120116186A - Fuse box for vehicle - Google Patents

Abstract

PURPOSE: A fuse box for a vehicle is provided to strengthen a locking function of a locking unit with a simple structure, thereby enhance the efficiency of manufacturing and assembling. CONSTITUTION: A fuse box for a vehicle comprises a case(110), a case cover(120), and a locking unit(200). One surface of the case is opened. The case cover is joined to the case so that the opened surface of the case is closed. The locking unit fixes and releases a joined state of the case and case cover. The locking unit comprises first and second hook levers(220a,220b) and an elastic member. External forces of directions opposite to each other are actuated to the first and second hook levers so that the first and second hook levers are released from an interlocked state.

Description

Fuse Box for Vehicles

The present invention relates to a vehicle fuse box. More specifically, the case cover is configured so that the case cover can be opened only by mutually opposing two-way pressing forces, and the case is not operated by an unexpected external force due to an operator's mistake or an impact while driving the vehicle without the intentional operation of the operator. By preventing the cover from opening, it is possible to more reliably protect the internal space in which a plurality of electrical components are arranged, and the simple structure is configured to enhance the locking function of the locking device. And it relates to a vehicle fuse box that can also improve the assembly processability.

BACKGROUND ART A vehicle such as an automobile has a function as a variety of convenience means for enabling a user to provide a more stable and comfortable running state beyond a function as a moving means.

Accordingly, the vehicle is equipped with various electric devices for driving the vehicle itself and for the convenience of the passengers. These electric devices are electrically connected to the battery and the generator, and are supplied with power for operation. It is configured to control operation by electronic control.

On the power supply line connecting the electric device and the power supply (battery and generator), a fuse is provided to protect the electric device, which causes a short circuit when an electric current flows due to an abnormality or an overload of the electric system. This is to ensure that the device is protected.

These fuses are used in the form of a plurality of fuses in one fuse box for efficient management. That is, the fuse box aggregates a power line connected between a main power source such as a battery or a generator and a corresponding device therein, and at the same time, a plurality of terminals having appropriate shapes are individually connected to each power line, respectively. It is inserted and installed in the terminal insertion hole of the sequential and the connection part of the terminal is installed and connected separately to prevent the occurrence of failure of various electrical equipment by short-circuit immediately when the overvoltage flows to the power line.

Such a fuse box is generally composed of a case having one side open and a case cover coupled to open and close an open side of the case, and a separate lock so that the case cover is fixed while the case cover is coupled to close one side of the case. The device is provided. The locking device is configured to be easily unlocked to facilitate maintenance inspection of the fuse box. For example, the case cover is configured to be released from the case by a simple push operation by the operator in one direction.

According to this structure, the case cover can be easily opened due to an unexpected external force caused by an operator's mistake or an impact while driving, and the opening of the case cover enables the inflow of moisture or foreign matter into the fuse box, thereby allowing the fuse box to be opened. There was a problem such as that can cause damage.

The present invention has been invented to solve the problems of the prior art, the object of the present invention is to configure the locking device so that the case cover can be opened only by the two-way pressing force facing each other, without the intentional operation of the operator By preventing the case cover from being opened due to an unexpected external force due to a mistake or an impact while driving the vehicle, a fuse box for a vehicle that can more stably protect the internal space in which a plurality of electrical components are arranged is provided. will be.

Another object of the present invention is to provide a fuse box for a vehicle that can be configured to enhance the locking function of the locking device with a simple structure, thereby improving the manufacturing and assembly process as well as the locking function.

The present invention provides a vehicle fuse including a case having one side open, a case cover coupled to the case so as to open and close an open side of the case, and a locking device for fixing and releasing the engagement state of the case and the case cover. In the box, The locking device is a locking block protruding on one side of the outer surface of the case; First and second hook levers coupled to the case cover such that the case cover is engaged to close the open surface of the case and engaged with the locking block; And an elastic member for applying an elastic force to the first and second hook levers in a direction in which the first and second hook levers are engaged with the engaging block, and facing the first and second hook levers, respectively. The first and the second hook lever is provided to the vehicle fuse box is formed to be released from the engaging block as the external force of the action.

At this time, the first and second hook lever is a hook body coupled to the case cover to be rotatable about a rotation axis of the central portion; A handle portion formed at one end of the hook body to be manipulated by a user; And hook protrusions formed on the other end of the hook body so as to be engaged with the locking block, and may be configured to be symmetrically disposed with each other.

In addition, a separate stopper block may be coupled to the case cover so as to limit the rotational movement range of the hook body by a user's manipulation.

In addition, the elastic member is a contact portion which is respectively in contact with the inner surface of the hook body facing each other; And an elastic part having both ends coupled to the contact parts, respectively, and applying rotational force by the elastic force to the hook body so that the hook protrusion moves in a direction close to each other.

At this time, the elastic portion may be integrally formed with the contact portion in the form of a convex curved plate spring in one direction.

On the other hand, the case cover may be rotatably coupled to one end of the case to rotate around the hinge axis of one end and to open and close one open surface of the case.

According to the present invention, the case cover is configured to be opened only by mutually opposing two-way pressing force, and thus, due to an unexpected external force caused by an operator's mistake or an impact while driving the vehicle, without the intentional operation of the operator. By preventing the case cover from opening, there is an effect that it is possible to more stably perform the protection function for the internal space in which a plurality of electrical components are arranged.

In addition, the hook lever and the elastic member to be configured to enhance the locking function of the locking device in a simple structure, there is an effect that can improve not only the locking function but also the manufacturing and assembly processability.

1 is a perspective view schematically showing the appearance of a vehicle fuse box according to an embodiment of the present invention;
2 is a perspective view schematically showing a hinge coupling structure for a case and a case cover of a vehicle fuse box according to an embodiment of the present invention;
3 is a perspective view schematically showing an opening and closing operation state of a case cover of a vehicle fuse box according to an embodiment of the present invention;
4 is a cross-sectional view schematically showing the configuration of the locking device for a vehicle fuse box according to an embodiment of the present invention;
5 is an operating state diagram schematically illustrating a locking operation state of a locking device of a vehicle fuse box according to an exemplary embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view schematically showing the exterior of a vehicle fuse box according to an embodiment of the present invention, Figure 2 is a schematic view of the hinge coupling structure for the case and the case cover of the vehicle fuse box according to an embodiment of the present invention 3 is a perspective view schematically illustrating an opening and closing operation state of a case cover of a vehicle fuse box according to an exemplary embodiment of the present invention.

In the vehicle fuse box according to an embodiment of the present invention, a plurality of fuses are integrated and disposed therein, respectively, and are connected through a corresponding electric device and a power line, and a case 110 having one surface open to form an accommodation space therein; It is configured to include a case cover 120 coupled to the case 110 to open and close one open surface of the case 110. At this time, the case cover 120 is further provided with a separate locking device 200 so that the case cover 120 is fixedly coupled to the case 110 in a state in which the case cover 120 is coupled to close the open one surface of the case 110.

The case 110 is formed in a substantially rectangular parallelepiped shape in which one surface is opened to form an accommodation space therein, and is disposed at a specific position in such a manner as to be coupled to a vehicle body such as an engine room of a vehicle or a dashboard of a vehicle interior. A plurality of fuses (not shown) are disposed in the case 110, and are connected to the plurality of electrical devices through power lines.

The case cover 120 is coupled to the case 110 to open and close one open surface of the case 110 to protect a plurality of fuses and power lines disposed in the inner space of the case 110. The case cover 120 may be completely detachably coupled to the case 110, but one side end is hinged to one side end of the case 110 as illustrated in FIG. 2 according to an embodiment of the present invention. It is preferable to be rotatably coupled.

That is, the main body hinge bracket 111 and the cover hinge bracket 121 which are hinged to each other rotatably coupled to one side end of the case 110 and the case cover 120 are formed, respectively, as they are hinged to each other The case cover 120 may be rotatably coupled to the case 110 with respect to the hinge axis C1. Thus, as shown in FIGS. 2 and 3, the case cover 120 is not completely separated from the case 110, but simply rotates about the hinge axis C1 and opens and closes one open surface of the case 110. It is composed.

As the case cover 120 is rotatably coupled to the case 110, the case cover 120 needs to be placed separately in a separate place after the case cover 120 is opened during maintenance inspection of the fuse box. There is no risk of loss or damage due to inadvertent damage to the case cover 120 can be prevented.

The locking device 200 is for locking and unlocking the combined state of the case 110 and the case cover 120, and the hinge of the case 110 and the case cover 120 as shown in FIGS. 1 to 3. It is preferably located at one side end opposite to the axis C1. That is, the case cover 120 is rotated about the hinge axis C1 to be positioned to close the open one side of the case 110, and the case cover through the locking device 200 located on the opposite side of the hinge axis C1. By fixing the 120 to the case 110, the fixing force to the case cover 120 can be strengthened, which can be said to be more advantageous.

The locking device 200 is formed to automatically lock as the case cover 120 is rotated to close the open one surface of the case 110, and is formed in a form that requires a separate user operation for the unlocking operation. . At this time, the unlocking operation of the locking device 200, unlike the prior art is formed in a structure that is not generated by the load due to the impact of the operator's mistake or driving, for example, bi-directional pressure according to an embodiment of the present invention The operation may be configured to perform an unlocking operation.

To this end, the locking device 200 according to an embodiment of the present invention includes first and second locking blocks 240 formed on the case 110 and coupled to the case cover 120 to be engaged with the locking blocks 240. And hook members 220a and 220b, and elastic members 260 (see FIGS. 4 and 5) that apply elastic force to the first and second hook levers 220a and 220b. The configuration of the locking device 200 will be described in detail with reference to FIG. 5.

4 is a cross-sectional view schematically showing the configuration of the locking device of the vehicle fuse box according to an embodiment of the present invention, Figure 5 is a locking operation state of the locking device of the vehicle fuse box according to an embodiment of the present invention Is an operating state diagram schematically illustrating the operation.

Locking device 200 of the fuse box for a vehicle according to an embodiment of the present invention is a configuration for fixing and unlocking the coupling state of the case 110 and the case cover 120, as described above, the locking block 240 And first and second hook levers 220a and 220b and an elastic member 260, and these components may be accommodated in the separate protective housing 210 to be protected from the outside.

The locking block 240 is formed to protrude on one side of the outer surface of the case 110, and is formed to engage the first and second hook levers 220a and 220b. In this case, the locking block 240 automatically rotates the first and second hooks 220a and 220b without manipulating the first and second hook levers 220a and 220b in the process of rotating the case cover 120 to close one open surface of the case 110. Both sides are preferably inclined downward so that the second hook levers 220a and 220b are engaged with the locking block 240.

The first and second hook levers 220a and 220b are formed in the same shape and disposed symmetrically with each other, and are coupled to the case cover 120 to be engaged with the engaging block 240 formed in the case 110. That is, the case cover 120 is coupled to the case cover 120 to be engaged with the locking block 240 in a state in which the case cover 120 is rotated to close the open one surface of the case 110, to the elastic force of the elastic member 260 to be described later It is elastically biased in one direction to be engaged with the locking block 240 by.

The elastic member 260 is disposed to apply elastic force to the first and second hook levers 220a and 220b in a direction in which the first and second hook levers 220a and 220b are engaged with the locking block 240. The elastic member 260 is formed in the form of a simple coil spring may be configured to apply an elastic force to a specific point of the first and second hook levers (220a, 220b), according to an embodiment of the present invention 261 and the elastic portion 262 may be formed, a detailed description thereof will be described later.

Meanwhile, the elastic member 260 applies an elastic force so that the first and second hook levers 220a and 220b, which are disposed symmetrically with each other, are engaged with the catching block 240, respectively, wherein the first and second hook levers ( By applying elastic forces in opposite directions to the 220a and 220b, the first and second hook levers 220a and 220b are configured to be symmetrically engaged with the locking block 240.

Therefore, when the case cover 120 rotates about the hinge axis C1 and rotates to close an open surface of the case 110, the first and second hook levers 220a and 220b are automatically symmetrical to each other. Engaged in the engaging block 240, and thus the coupling state of the case 110 and the case cover 120 is fixed, and in this state, in order to release the engagement state of the case 110 and the case cover 120 is fixed. It is possible to release the first and second hook levers 220a and 220b from the catching block 240 by applying external forces in the opposite directions to the first and second hook levers 220a and 220b, respectively.

According to this structure, the vehicle fuse box according to the exemplary embodiment of the present invention has a case cover 120 coupled to and fixed to the case 110 in a closed state. Since two forces in the opposite directions should be applied to the second hook levers 220a and 220b, the case cover 120 may be moved by a simple pressing operation caused by a mistake of an operator or a load caused by an impact of a vehicle while driving. It is not open Thus, the case cover 120 may be prevented from opening in an unexpected situation, thereby maintaining a safer state for the fuse box.

In addition, since the first and second hook levers 220a and 220b and the elastic member 260 are accommodated and protected inside the separate protective housing 210, the first and second hook levers (eg, foreign matters caused by an external impact) may be used. Automatic operation of the 220a, 220b can be prevented once more.

In more detail, as shown in FIG. 4, the first and second hook levers 220a and 220b are hook bodies 221 coupled to the case cover 120 so as to be rotatable about a rotation axis C2 of the central portion, respectively. ), A handle 222 formed at one end of the hook body 221 to be pressed by the user, and a hook protrusion 223 formed at the other end of the hook body 221 to be engaged with the locking block 240. ), And are arranged symmetrically with each other.

That is, each hook body 221 is coupled to rotate about a separate rotation axis (C2) coupled to the case cover 120, the handle portion 222 and the opposite ends of the hook body 221, respectively The hook protrusion 223 is formed. Accordingly, when the handles 222 of the first and second hook levers 220a and 220b are pressed in a direction close to each other, the respective hook bodies 221 are opposite to each other about the respective rotation axis C2. Each hook protrusion 223 is rotated to move in a direction away from each other. On the contrary, when the handle portions 222 of the first and second hook levers 220a and 220b move in a direction away from each other, the hook protrusions 223 move in a direction close to each other. At this time, each hook protrusion 223 is formed to be engaged with the lower end of the locking block 240 when moved in a direction close to each other as shown in FIG.

Meanwhile, the elastic member 260 applies an elastic force to the first and second hook levers 220a and 220b thus operated so that the hook protrusions 223 rotate in a direction close to each other, as shown in FIG. 4. As described above, the contact portions 261 which are in contact with each other on the inner side surfaces of the hook bodies 221 of the first and second hook levers 220a and 220b are opposed to each other, and both ends thereof are respectively coupled to the contact portions 261. The hook protrusions 223 of the first and second hook levers 220a and 220b may include an elastic part 262 which applies rotational force by elastic force to each hook body 221 so as to move in a direction proximate to each other. Can be.

That is, an insertion groove 224 is formed on the inner surface of the hook body 221 so that the contact portion 261 of the elastic member 260 is inserted and coupled, and the contact portion 261 is inserted and coupled to the insertion groove 224. At this time, the contact portion 261 is formed to extend in the vertical direction of the inner surface of the hook body 221 is preferably formed to be in contact with the inner surface of the hook body 221 in a relatively large area, the elastic portion through this structure The elastic force by 262 may be transmitted to the hook body 221 more stably. Both ends of the elastic part 262 are coupled to each of the contact parts 261, and are formed to connect the respective contact parts 261, and the hook body 221 is formed of a material having an elastic force and the contact parts 261 disposed at both ends thereof. It is formed to apply rotational force.

At this time, the contact portion 261 is disposed so that its upper end is located above the rotation axis (C2) of the hook body 221, as shown in Figure 4, the elastic portion 262 is respectively at the upper end of the contact portion 261 It is formed to be coupled, it is disposed so that the elastic force of the elastic portion 262 acts in the direction to push the top of each contact portion 261 mutually. Therefore, an elastic force acts in a direction away from each other at the upper end of the contact portion 261 by the elastic force of the elastic portion 262, this elastic force acts on the hook body 221, the action point of the elastic force is the hook body 221 In order to be located at the top of the rotation axis (C2) and to move away from each other at the same time, the hook body 221 is rotated in the direction in which the hook projections 223 at the bottom close to each other.

According to this structure, the first and second hook levers 220a and 220b are elastically biased in the direction in which the hook protrusion 223 is engaged with the locking block 240 by the elastic force of the elastic member 260. Therefore, in order to release the hook protrusion 223 from the catching block 240, since the handle portions 222 of the first and second hook levers 220a and 220b need to be bidirectionally pushed in a direction close to each other, the user The first and second hook levers 220a and 220b are not disengaged from the catching block 240 without the intentional manipulation of the case, and accordingly, the combined fixing state of the case cover 120 and the case 110 is stable. Is maintained.

On the other hand, the elastic portion 262 and the contact portion 261 of the elastic member 260 is preferably formed as a single body as shown in Figs. 4 and 5, it is easy to perform the manufacturing and assembly process accordingly The elastic portion 262 may be formed in the form of a leaf spring convexly curved upward in order to apply an elastic force in a direction in which the contact portions 261 at both ends are mutually pushed.

In addition, when the user presses the handles 222 of the first and second hook levers 220a and 220b in a direction in which they are close to each other, each of the hook bodies 221 rotates about the rotation axis C2. The handle 222 is moved close to each other, in this case, a separate stopper block 250 may be coupled to the case cover 120 so that the rotational movement range of the hook body 221 is limited to a certain range. . At this time, the rotational movement range of the hook body 221 limited by the stopper block 250 should be at least the range that the hook protrusion 223 is disengaged from the locking block 240. Through this structure, the hook body 221 may be prevented from rotating more than a predetermined range, thereby preventing damage to the first and second hook levers 220a and 220b due to the user's excessive pressing operation.

In FIG. 5, an operating state of the locking device 200 is schematically illustrated, and as shown in FIG. 5A, a user lifts the handle 222 of the first and second hook levers 220a and 220b. When the pressure operation in the direction close to each other, each hook body 221 is rotated in the opposite direction to each other and the hook projection 223 is moved in a direction away from each other. When the hook protrusions 223 move in a direction away from each other in this way, the hook protrusions 223 are disengaged from the locking block 240, so that the case cover 120 can be opened from the case 110 in this state. .

On the other hand, when the pressing operation force to the handle portion 222 in the state shown in Figure 5 (a) is released, the elastic force by the elastic member 260 as shown in Figure 5 (b) and (c) This action causes the hook bodies 221 of the first and second hook levers 220a and 220b to rotate so that the hook protrusion 223 moves in a direction close to each other. As shown in FIG. 5C, the hook protrusion 223 is completely engaged with the locking block 240, and in this state, the elastic force by the elastic member 260 is continuously engaged and engaged. Is kept stable.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

110: case 120: case cover
200: locking device 210: protective housing
220a, 220b: first and second hook levers 221: hook body
222: handle portion 223: hook projection
240: jam block 250: stopper block
260: elastic member 261: contact portion
262: elastic portion

Claims (6)

In a fuse box for a vehicle comprising a case having one side open, a case cover coupled to the case to open and close one open side of the case, and a locking device for fixing and releasing the engagement state of the case and the case cover.
The locking device
A locking block protruding from one side of an outer surface of the case;
First and second hook levers coupled to the case cover such that the case cover is engaged to close the open surface of the case and engaged with the locking block; And
An elastic member for applying an elastic force to the first and second hook levers in a direction in which the first and second hook levers are engaged with the locking block;
And the first and second hook levers are disengaged from the latching block as external forces in directions facing each other act on the first and second hook levers, respectively.
The method of claim 1,
The first and second hook levers
A hook body coupled to the case cover to be rotatable about a rotation axis of a central portion;
A handle portion formed at one end of the hook body to be manipulated by a user; And
Hook protrusion formed on the other end of the hook body to be engaged with the locking block
Each of the fuse box, characterized in that the vehicle is disposed symmetrically.
The method of claim 2,
The case cover is a vehicle fuse box, characterized in that a separate stopper block is coupled to limit the rotational movement range of the hook body by the user's operation.
The method of claim 2,
The elastic member
Contacting portions respectively contacted to inner surfaces of the hook body facing each other; And
Resilient portions coupled to the contact portions, respectively, to apply rotational force by elastic force to the hook body so that the hook protrusions move in a direction close to each other.
Vehicle fuse box comprising a.
The method of claim 4, wherein
The elastic part of the vehicle fuse box, characterized in that formed integrally with the contact portion in the form of a leaf spring convexly curved in one direction.
6. The method according to any one of claims 1 to 5,
The case cover is rotated about the hinge axis of one end, the vehicle fuse box, characterized in that rotatably coupled to one end of the case to open and close the open one side of the case.

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