Patent Description:
The requirement of overcurrent (short circuit) protection of battery is usually realized by fuse. However, when the fuse is to be disassembled, the battery cover needs to be removed to replace the fuse, which requires long working hours and heavy workload. If there are other components in the upper part of the battery box, it is necessary to remove the battery box or the components, and there is a risk that the sealing strip of the upper cover may be damaged during the installation and removal of the upper cover, which may weaken the protective performance of the battery box.

To solve the above problems, at present, a maintenance window is usually provided on the battery box, and the fuse is replaced by removing the cover plate for fuse maintenance. However, this method requires the fuse to be aligned with the plug-in hole for insertion, which is time-consuming and laborious. <CIT> discloses a fuse box being attached to a battery mounted on a car. The fuse box includes a fuse device and a resin box that houses the fuse device. The fuse device includes a bus bar, an input terminal section, five output terminal sections, and a fuse element connected to and integrally formed with the terminal sections. The fuse device is inserted into the insertion space of the box from above, and the fuse device is inserted along the guide. When the resin molded part of the fuse device is inserted until it hits the bottom surface of the insertion space, both protrusions provided at the upper ends of the left and right surfaces of the resin molded part are elastically locked by the lock pieces provided at the upper ends of the left and right side walls of the box, to prevent the fuse device from coming off. The appended claims are characterized over this document. <CIT> discloses a fusible link connector, which is a screw-down connector consisting of a fusible link, an insulating housing and a pair of nuts. The fusible link includes a casing for covering a not-shown fusing section and a pair of connector terminals having grooves formed for passing a bolt. The electrical connection box is provided with a portion for receiving the fusible link connector therein. In assembly, the guides of the insulating housing are inserted into the guide grooves so as to slide therein while the engagement pawls are engaged with the engagement projections. <CIT> discloses a fuse including a housing, a handle and a fuse tube. The housing is provided with an accommodation cavity, the handle is slidably inserted into the accommodation cavity, elastic blocks are provided on both sides of the handle, and the accommodation cavity is provided with a slot for engaging with the elastic block. The fuse tube is detachably connected to the handle. The handle has a handle portion for holding and a mounting portion for installing the fuse tube, and the mounting portion is provided with clamping elastic pieces for clamping the two ends of the fuse tube. <CIT> discloses a battery pack utilizes a fuse lock-out assembly, the fuse lock-out assembly includes a housing, a fuse holding housing, a guide plate, and a slidable door. The fuse holding housing includes fuse compartments configured to hold the fuses respectively. The slidable door prevents access to fuse compartments unless a lower housing of the manual service disconnect is removed from the fuse lock-out assembly.

In view of this, a first object according to the present application is to provide a fuse mounting structure, to reduce the workload of fuse insertion.

A second object of the present application is to provide a battery system.

In order to achieve the first object, the following technical solutions are provided according to the present application.

A fuse mounting structure for mounting a fuse to a battery box, including a drawer and a fuse base; where the fuse base is mounted in the battery box; the base includes a base top wall, a base bottom wall, and base side walls, the drawer is provided with a guide device in a sliding fit with the fuse base, so as to guide the drawer to be inserted into the fuse base;.

In another specific embodiment, the drawer further includes a blocking plate, the blocking plate is connected with the support plate and covers the fuse.

In another specific embodiment, the blocking plate and the support plate are connected by bolts, adhesive bonding, pouring sealant or buckles.

In another specific embodiment, the drawer further includes a finger pressing plate, the finger pressing plate is arranged between the support plates, and is located at an end of the support plate away from the hanging groove; or,
the drawer further includes a pull ring which is arranged between the support plates and allows fingers to extend in, and the pull ring is located at an end of the support plate away from the hanging groove.

In another specific embodiment, the finger pressing plate is provided with an anti-slip protrusion and/or an anti-slip groove and/or an anti-slip through hole; and/or,
a surface of the bottom plate used for supporting the fuse is provided with a heat dissipation protrusion and/or a heat dissipation groove and/or a heat dissipation through hole.

In another specific embodiment, a distance between at least one of the base bottom wall and the base top wall of the fuse base and a maintenance panel of the battery box is smaller than a preset gap.

In another specific embodiment, one of the fuse base and the drawer is provided with a plug-in hole, and the other one of the fuse base and the drawer is provided with a plug-in protrusion which is inserted and matches the plug-in hole.

In another specific embodiment, along a direction of entering the plug-in hole, a bottom end face of the plug-in protrusion is arranged to be inclined toward a top end face thereof.

The various embodiments according to the present application can be combined arbitrarily as required, and the embodiments obtained after these combinations are also within the scope of the present application and are a part of the specific embodiments of the present application.

According to the fuse mounting structure provided by the present application, the guide device is arranged on the drawer, the guide device guides the drawer mounted with fuse when the drawer enters the fuse base, there is no need to align the plug-in holes, which realizes blind insertion of fuses, and thereby reducing the workload of fuse insertion.

In order to achieve the second object, the following technical solutions are provided according to the present application.

A battery system, including a battery box and a fuse mounting structure as described in any one of the above solutions, where the fuse mounting structure is mounted in the battery box.

As the battery system provided by the present application includes the fuse mounting structure of any one of the above solutions, the beneficial effects of the fuse mounting structure are included in the battery system disclosed by the present application.

For more clearly illustrating the technical solutions in the embodiments of the present application or the conventional technology, drawings referred to for describing the embodiments or the conventional technology will be briefly described hereinafter. Apparently, drawings in the following description are only some examples of the present application, and for the person skilled in the art, other drawings may be obtained based on the provided drawings without any creative efforts.

The technical solutions in the embodiments of the present application will be described clearly and completely as follows in conjunction with the drawings in the embodiments of the present application.

In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms, such as "upper", "lower", "top surface", and "bottom surface", are based on the orientation or positional relationship shown in the drawings, which are only to facilitate the description of the present application and to simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or can only be configured and operated in a particular orientation. Therefore the above-mentioned terms should not be construed as a limitation to the present application. In addition, the terms "first", "second" and the like are for purpose of description, and should not be construed as indicating or implying relative importance.

Referring to <FIG>, a fuse mounting structure <NUM> is provided according to a first aspect of the present application, which is made of an insulating material, and is used to mount a fuse <NUM> to a battery box <NUM>.

Specifically, as shown in <FIG> and <FIG>, the fuse mounting structure <NUM> includes a drawer <NUM> and a fuse base <NUM>, the fuse base <NUM> is mounted in the battery box <NUM>, specifically, the battery box <NUM> is provided with a maintenance window <NUM>, the fuse base <NUM> is mounted into the battery box <NUM> through the maintenance window <NUM>, as shown in <FIG> and <FIG>.

The drawer <NUM> is used for mounting the fuse <NUM>, it should be noted that the shape of the drawer <NUM> is not limited, as long as the drawer can hold and position the fuse <NUM>, it belongs to the protection scope of the present application.

As shown in <FIG>, the drawer <NUM> is provided with a guide device <NUM> configured to be in a sliding fit with the fuse base <NUM>, so as to guide the drawer <NUM> to be inserted into the fuse base <NUM>.

In the fuse mounting structure <NUM> provided by the present invention, the drawer <NUM> is provided with the guide device <NUM>, the guide device <NUM> guides the drawer <NUM> with the fuse <NUM> when the drawer <NUM> enters the fuse base <NUM>, there is no need to align the plug-in holes 102a, which realizes blind insertion of the fuse <NUM>, and thereby reducing the workload of fuse <NUM> insertion.

The guide device <NUM> includes side wall guide members 103a, a top guide portion 103b and/or a bottom guide portion 103c, the side wall guide members 103a are arranged on both sides of the drawer <NUM>, respectively, and are in a sliding fit with base side walls 102d on both sides of the fuse base <NUM>. In addition, along the direction that the drawer <NUM> enters the main body of the fuse <NUM>, a distance between the base side walls 102d on both sides of the fuse base <NUM> is gradually reduced, which facilitates the left-right alignment of the drawer <NUM> when entering the fuse base <NUM>.

Specifically, the side wall guide member 103a is an arc-shaped plate, and the surface, configured to be in sliding fit with the side wall guide member 103a, of the base side wall 102d, is an arc-shaped surface matching the shape of the side wall guide member 103a.

It can be understood that, the distance between the base side walls 102d on both sides of the fuse base <NUM> can be gradually reduced as follows: either base side wall 102d is inclined relative to the other base side wall 102d, or both base side walls 102d are inclined, as shown in <FIG>.

The top guide portion 103b is arranged at the top of the drawer <NUM> for sliding fit with the base top wall 102b of the fuse base <NUM>, and a distance from the base top wall 102b to the base bottom wall 102c of the fuse base <NUM> is gradually reduced, which facilitates the vertical alignment of the drawer <NUM> when it enters the fuse base <NUM>.

The bottom guide portion 103c is provided at the bottom end of the drawer <NUM>, and is used to be in a sliding fit with the base bottom wall 102c of the fuse base <NUM>.

It should be noted that the guide device <NUM> is not limited to the above structure, but may have other structures. For example, the guide device <NUM> may include a slide rail provided on the drawer <NUM> or a slide groove provided on the drawer <NUM>; correspondingly, the fuse base <NUM> is provided with a slide groove which is in sliding fit with the slide rail or a slide rail which is in sliding fit with the slide groove.

As shown in <FIG>, the drawer <NUM> includes a bottom plate 101a and support plates 101b, the bottom plate 101a is used to support the bottom end of the fuse <NUM>, and the support plates 101b are respectively arranged on both sides of the bottom plate 101a.

Specifically, the number of support plates 101b is two, and the support plates are vertically connected to the bottom plate 101a at a certain distance. It should be noted that the number of support plates 101b is two, which is only one specific embodiment of the present application. In practical application, the number of support plates 101b may be three or more. The top guide portion 103b of the drawer <NUM> is the top surface of the support plate 101b.

In this embodiment, the number of support plates 101b is two is taken as an example, the distance between the two support plates 101b should be enough to accommodate the fuse <NUM>, and the electrical connection groove 201a of the fuse <NUM> for wiring should be prevented from being located between the support plates 101b.

The support plates 101b are each provided with a hanging groove 101c, for supporting the electrical connection portions <NUM> on both sides of the fuse <NUM>, and the electrical connection groove 201a, configured for wiring, of the electrical connection portion <NUM>, is located outside the hanging groove 101c, to facilitate wiring.

When the fuse <NUM> is to be mounted into the drawer <NUM>, it is only necessary to place the fuse <NUM> on the bottom plate 101a, and place the electrical connection portion <NUM> of the fuse <NUM> on the hanging groove 101c; when the fuse <NUM> needs to be taken out, it is only necessary to take the fuse <NUM> out of the drawer <NUM>. That is, the drawer <NUM> is an open-type structure, which is convenient for taking and placing the fuse <NUM>.

The surface of the bottom plate 101a used for supporting the fuse <NUM> is provided with a heat dissipation protrusion 101a-<NUM> and/or a heat dissipation groove and/or a heat dissipation through hole. Specifically, the heat dissipation protrusion 101a-<NUM> may be a strip-shaped protrusion, or multiple protruding dots or protruding blocks. The heat dissipation groove is a strip-shaped groove or a pit, and the heat dissipation through hole is a round through hole or a square through hole.

In some embodiments, as shown in <FIG>, the drawer <NUM> further includes a blocking plate 101d, the blocking plate 101d is connected with the support plate 101b, and covers and blocks the fuse <NUM>, that is, the drawer <NUM> has a closed structure.

Specifically, the structure of the blocking plate 101d is not limited, and it may be of any shape. For example, L-shaped plate, U-shaped plate or arc-shaped plate, etc. The structure that can encapsulate the fuse <NUM> belongs to the protection scope of the present application.

Furthermore, the present application discloses that the blocking plate 101d and the support plate 101b may be connected by bolts, adhesive bonding, pouring sealant or buckles. It is understandable that the above connection relationship between the blocking plate 101d and the support plate 101b is only the specific embodiment of the present application, in practical application, the blocking plate 101d and the support plate 101b may be set in other connection relationships.

In some embodiments, as shown in <FIG> and <FIG>, the drawer <NUM> further includes a finger pressing plate 101e, the finger pressing plate 101e is arranged between the support plates 101b, and is located at an end of the support plate 101b away from the hanging groove 101c. On one hand, the finger pressing plate 101e is convenient for the operator to hold, on the other hand, it separates the electrical connection portions <NUM> on both sides of the fuse <NUM>, and avoids the situation that two hands of the operator simultaneously contact the electrical connection portions <NUM> on both sides of the fuse <NUM>.

To improve the bending strength of the finger pressing plate 101e, the present application discloses that both sides of the finger pressing plate 101e are respectively connected with a pulling piece <NUM>, the pulling piece <NUM> is connected with the support plate 101b on the corresponding side, it should be noted that the structure of the pulling piece <NUM> is not limited, and it can be any structure. In order to facilitate processing and manufacturing, the present application discloses that the pulling piece <NUM> is an inclined plate integrally formed with the support plate 101b. It should be noted that, a support rod, a support plate 101b or the like connected to the bottom plate 101a may also be provided at the bottom end of the finger pressing plate 101e.

Specifically, the drawer <NUM> further includes a connecting plate, one end of the connecting plate is connected to the bottom plate 101a, and the other end of the connecting plate supports and connects the finger pressing plate 101e, which improves the support strength of the finger pressing plate 101e. The connecting plate is connected to the end of the support plate 101b near the finger pressing plate 101e, to limit the fuse <NUM>.

Further, the finger pressing plate 101e is provided with an anti-slip protrusion 101e-<NUM> and/or an anti-slip groove and/or an anti-slip through hole.

Specifically, the anti-slip protrusion 101e-<NUM> may be a strip-shaped protrusion, or multiple protruding dots or protruding blocks. The anti-slip dissipation groove is a strip-shaped groove or a pit, and the anti-slip dissipation through hole is a round through hole or a square through hole.

In other embodiments, the drawer <NUM> further includes a pull ring provided between the support plates 101b and allowing fingers to extend in, and the pull ring is located at the end of the support plate 101b away from the hanging groove 101c, so that the drawer <NUM> can be conveniently pulled by the pull ring. That is, the finger pressing plate 101e can be replaced by the pull ring, and two ends of the pull ring can be connected with the support plates 101b on both sides respectively. Specifically, the pull ring can accommodate at least one finger to pass through, so as to be pulled.

In some embodiments, the distance between at least one of the base bottom wall 102c and the base top wall 102b of the fuse base <NUM> and a maintenance panel of the battery box <NUM> is smaller than a preset gap, as shown in <FIG> and <FIG>.

It should be noted that, the preset gap is less than or equal to the gap value that allows a bolt, nuts, flat washers or elastic washers to pass through. Specifically, the embodiment discloses that the distance between at least one of the base bottom wall 102c or the base top wall 102b of the fuse base <NUM> and the maintenance panel of the battery box <NUM> is <NUM>.

In some embodiments, one of the fuse base <NUM> and the drawer <NUM> is provided with a plug-in hole 102a, and the other one of the fuse base and the drawer is provided with a plug-in protrusion 101f which is inserted in and matches the plug-in hole 102a.

Taking a solution that the plug-in protrusion 101f is provided on the drawer <NUM> and the plug-in hole 102a is provided on the fuse base <NUM> as an example, as shown in <FIG>, the number of plug-in protrusions 101f and plug-in holes 102a is equal, and they are arranged in one-to-one correspondence, both of which are two.

Further, along the direction of entering the plug-in hole 102a, the bottom end face of the plug-in protrusion 101f is inclined toward the top end face, which is convenient for guiding. Specifically, the bottom guide portion 103c is the bottom surface of the plug-in protrusion 101f.

The present application has the following advantages:.

A battery system is disclosed according to a second aspect of the present application, including a battery box <NUM> and a fuse mounting structure <NUM> according to any one of the above embodiments, the fuse mounting structure <NUM> is mounted in the battery box <NUM>.

As the battery system provided by the present application includes the fuse mounting structure <NUM> of any one of the above embodiments, the beneficial effects of the fuse mounting structure <NUM> are included in the battery system disclosed by the present application.

It should be noted that the words indicating the orientation in this specification, such as the left, right, top, bottom etc., are all set in the direction of <FIG>, which are only for the convenience of description and do not have other specific meanings.

The above embodiments are described in a progressive manner, each of the embodiments is mainly focused on describing its differences from other embodiments, and reference may be made among these embodiments with respect to the same or similar parts.

With the above descriptions of the disclosed embodiments, those skilled in the art can implement or practice the present application. Various modifications to the embodiments are apparent to those skilled in the art, and the general principle herein can be implemented in other embodiments without departing from the scope of the present invention as defined by the claims.

In the description of this specification, description with reference to the terms "one embodiment", "example", "specific example", etc. means that specific features, structures, materials or characteristics described in connection with this embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claim 1:
A fuse mounting structure (<NUM>) for mounting a fuse (<NUM>) to a battery box (<NUM>), comprising a drawer (<NUM>) and a fuse base (<NUM>); wherein
the fuse base (<NUM>) is configured to be mounted in the battery box (<NUM>);
the fuse base (<NUM>) comprises a base top wall (102b), a base bottom wall (102c), and base side walls (102d);
the drawer (<NUM>) is provided with a guide device (<NUM>) in a sliding fit with the fuse base (<NUM>), to guide the drawer (<NUM>) to be inserted into the fuse base (<NUM>); wherein the guide device (<NUM>) comprises side wall guide members (103a), and at least one of a top guide portion (103b) and a bottom guide portion (103c); wherein
the side wall guide members (103a) are arranged on both sides of the drawer (<NUM>), respectively, and are in a sliding fit with the base side walls (102d) located on both sides of the base (<NUM>);
the top guide portion (103b) is arranged at a top of the drawer (<NUM>) and is in a sliding fit with the base top wall (102b) of the fuse base (<NUM>);
the bottom guide portion (103c) is arranged at a bottom of the drawer (<NUM>) and is in a sliding fit with the base bottom wall (102c) of the fuse base (<NUM>);
characterized in that
along a direction of the drawer (<NUM>) entering the fuse base (<NUM>), a distance between the base side walls (102d) located on both sides of the fuse base (<NUM>) is gradually reduced, and a distance from the base top wall (102b) to the base bottom wall (102c) of the fuse base (<NUM>) is gradually reduced; and in that the drawer (<NUM>) comprises:
a bottom plate (101a) for supporting the fuse (<NUM>); and
support plates (101b) respectively arranged at both sides of the bottom plate (101a), wherein each of the support plates (101b) is provided with a hanging groove (101c) for supporting an electrical connection portion (<NUM>) located at each of both sides of the fuse (<NUM>), and an electrical connection groove (201a), configured for wiring, of the electrical connection portion (<NUM>) is located outside the hanging groove (101c).