CN211405551U

CN211405551U - Battery distribution box shell and battery distribution box

Info

Publication number: CN211405551U
Application number: CN202020234225.4U
Authority: CN
Inventors: 宋海阳; 曹胜捷; 李乐
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-09-01
Anticipated expiration: 2030-02-28

Abstract

The utility model relates to the technical field of batteries, a battery distribution box shell and battery distribution box are disclosed, battery distribution box shell includes casing down, be provided with the storage tank that can hold pre-charging resistance down on the casing, battery distribution box shell including set up in the backstop portion of casing down, backstop portion sets up to blockking pre-charging resistance follows deviate from in the storage tank. The battery distribution box shell can facilitate the assembly of the pre-charging resistor. Through set up in the battery distribution box the utility model provides a battery distribution box shell can be convenient for the assembly of pre-charging resistance, and makes pre-charging resistance is difficult for deviating from, has improved battery distribution box's safety in utilization greatly.

Description

Battery distribution box shell and battery distribution box

Technical Field

The utility model relates to a battery technology field specifically relates to a battery block terminal shell and battery block terminal.

Background

The battery distribution box is an indispensable component of the power battery pack. The electrical system of the battery distribution box is generally integrated with a main positive control loop, a main negative control loop, a pre-charging loop, a voltage and current detection loop and the like, wherein the electrical components contained in the electrical system are a main positive contactor, a main negative contactor, a pre-charging resistor, a shunt, a battery sensor and the like, and the electrical components are large in number and are connected with each other through a wire harness.

The battery pack needs to charge the capacitor in each initial electrifying stage, and if the battery pack is not limited, the charging current is too large, and great impact is caused on a power supply and a rectifying element, so that the pre-charging resistor needs to be used for limiting the current.

At present, the support of utilizing installing additional fixes the pre-charging resistance on battery block terminal, like this, has not only reduced interior space utilization, still can make battery block terminal's assembler operation difficulty, increases man-hour, produces higher assembly cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the inconvenient problem of pre-charging resistance of assembly on the battery block terminal that prior art exists, providing a battery block terminal shell, this battery block terminal shell can make pre-charging resistance's assembly more convenient.

In order to achieve the above object, an aspect of the present invention provides a battery distribution box casing, the battery distribution box casing includes lower casing, be provided with the storage tank that can hold pre-charging resistance down on the casing, the battery distribution box casing including set up in the backstop portion of casing down, backstop portion sets up to blockking pre-charging resistance follows deviate from in the storage tank.

Above-mentioned technical scheme can hold the storage tank of pre-charging resistance and can block the backstop portion that the pre-charging resistance deviates from in the storage tank through setting up to make battery distribution box can not make the pre-charging resistance deviate from because of external rocking in the middle of transportation or the use, the potential safety hazard that has significantly reduced has improved customer satisfaction.

Preferably, the stopping portion includes a stopping elastic arm disposed on the lower housing, the stopping elastic arm is configured to swing toward the direction outside the accommodating groove, the stopping portion includes a stopping boss disposed on the stopping elastic arm and protruding toward the accommodating groove, and the stopping boss can stop the pre-charging resistor from coming out of the accommodating groove.

Preferably, a notch is formed in a wall of the accommodating groove, wherein: the stop elastic arm is arranged in the notch.

Preferably, a wall of the stopper boss facing the central axis of the accommodating groove is provided as an inclined wall that gradually approaches the central axis of the accommodating groove in a direction from a notch of the accommodating groove to a bottom wall of the accommodating groove opposite to the notch.

Preferably, the battery distribution box housing comprises a first convex rib which is arranged on the circumferential wall of the accommodating groove and faces the accommodating groove, and the first convex rib is arranged to be capable of being in close contact with the pre-charging resistor accommodated in the accommodating groove.

Preferably, the battery distribution box housing includes a plurality of the first ribs, and the plurality of the first ribs are disposed at intervals on the circumferential wall of the accommodating groove.

Preferably, the pre-charging resistor comprises a pre-charging resistor body and a pair of terminals arranged on the pre-charging resistor body;

and a pair of through holes for the corresponding terminals to pass through are formed in the bottom wall of the accommodating groove opposite to the notches of the accommodating groove.

Preferably, a mounting opening is formed in the bottom wall of the accommodating groove, which is opposite to the notch of the accommodating groove;

the battery distribution box shell comprises an elastic arm connected with the mounting opening and a second convex rib arranged on the elastic arm and facing to the inner portion of the accommodating groove, the elastic arm can drive the second convex rib to swing back and forth along the direction from the inner portion of the accommodating groove to the outer portion of the accommodating groove, so that the second convex rib can be in close contact with the wall of the bottom wall of the accommodating groove facing to the pre-charging resistor.

Preferably, the battery distribution box casing includes a plug-in groove disposed on a wall of the accommodating groove and located outside the accommodating groove, and the plug-in groove can be used for inserting a plug-in arm of a plug-in unit of the battery distribution box.

The utility model discloses the second aspect provides a battery block terminal, battery block terminal includes the utility model provides a battery block terminal shell. Through set up in the battery distribution box the utility model provides a battery distribution box shell can be convenient for the assembly of pre-charging resistance, and makes pre-charging resistance is difficult for deviating from, has improved battery distribution box's safety in utilization greatly.

Drawings

Fig. 1 is a schematic bottom view of a pre-charging resistor mounted on a housing of a battery distribution box according to a preferred embodiment of the present invention, wherein the pre-charging resistor is mounted in the accommodating groove;

fig. 2 is a schematic view of the overall structure of the receiving groove of the battery distribution box housing according to the preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of the stopper shown in FIG. 2;

fig. 4 is a partial structural schematic view of the battery distribution box housing shown in fig. 2, illustrating a plug-in slot disposed at the top of the receiving slot and outside the receiving slot;

FIG. 5 is a schematic structural view of the battery distribution box housing of FIG. 4 shown with the insert installed at the slot;

fig. 6 is a schematic perspective view of the pre-charging resistor in the structural diagram shown in fig. 1.

Description of the reference numerals

12-a lower housing; 14-a receiving groove; 140-a first bead; 142-a via hole; 144-a mounting port; 16-a stop; 160-stop elastic arm; 162-stop boss; 164-an inclined wall; 180-a resilient arm; 182-a second rib; 19-a plug groove; 20-pre-charging resistance; 22-pre-charging the resistor body; 24-a terminal; 26-an insert; 260-plug-in arm.

Detailed Description

In the present invention, the use of directional terms such as "upper, lower, left and right" in the absence of a contrary explanation generally means that the directions shown in the drawings and the practical application are understood, and "inner and outer" mean inner and outer of the outline of the component.

The utility model provides a battery distribution box shell, battery distribution box shell includes casing 12 down, and it can be understood, battery distribution box shell still can include casing (not shown in the figure), it can form with casing 12 to go up the casing jointly the battery distribution box shell is provided with storage tank 14 that can hold pre-charge resistance 20 down on casing 12, battery distribution box shell is including setting up in the backstop portion 16 of casing 12 down, and backstop portion 16 sets up to stopping pre-charge resistance 20 and deviates from storage tank 14. Through setting up can hold containing groove 14 of pre-charge resistance 20 and can block backstop portion 16 that pre-charge resistance 20 deviates from containing groove 14 to make battery distribution box can not make pre-charge resistance 20 deviate from because of external rocking in the middle of transportation or the use, the potential safety hazard that has significantly reduced has improved customer satisfaction. It should be noted that the accommodating groove 14 may be disposed in the free portion of the lower casing 12, and in addition, the notch of the accommodating groove 14 may be located at the bottom of the lower casing 12, and the bottom wall of the accommodating groove 14 opposite to the notch is located above the notch.

Referring to fig. 1, 2 and 3, the stopping portion 16 may include a stopping elastic arm 160 disposed on the lower housing 12, the stopping elastic arm 160 may be configured to swing toward the outside of the accommodating slot 14, and the stopping portion 16 may include a stopping boss 162 disposed on the stopping elastic arm 160 and protruding toward the inside of the accommodating slot 14, and the stopping boss 162 may block the pre-charging resistor 20 from coming out of the accommodating slot 14. During the process of assembling the pre-charge resistor 20 into the receiving tank 14, the stopping elastic arm 160 may swing towards the direction of the outside of the receiving tank 14, so as to avoid the pre-charge resistor 20, so that the pre-charge resistor 20 is convenient to be assembled into the receiving tank 14, and after the pre-charge resistor 20 is assembled into the receiving tank 14, the stopping elastic arm 160 may swing towards the direction of the inside of the receiving tank 14 and return to the initial position.

In addition, a notch may be formed in a wall of the accommodating groove 14, wherein: stop elastic arms 160 may be arranged in said notches, so as to facilitate preparation, for example stop elastic arms 160 may be made in one piece with receiving groove 14, thereby improving the robustness of the overall structure; meanwhile, the stopping boss 162 can better play a role in stopping under the driving action of the stopping elastic arm 160.

As shown in fig. 2 and 3 in combination, the wall of the stopper boss 162 toward the center axis of the receiving groove 14 is preferably provided as an inclined wall 164, and the inclined wall 164 is gradually close to the center axis of the receiving groove 14 in a direction from the notch of the receiving groove 14 to the bottom wall of the receiving groove 14 opposite to the notch. The inclined wall 164 is provided to guide the pre-charging resistor 20 to be assembled into the accommodating groove 14, thereby facilitating the assembly of the pre-charging resistor 20.

As shown in fig. 2, a first rib 140 protruding toward the inside of the receiving groove 14 may be disposed on the circumferential wall of the receiving groove 14, the first rib 140 may be located in the receiving groove 14, and the first rib 140 may be disposed to be capable of being in close contact with the pre-charge resistor 20 received in the receiving groove 14. By arranging the first ribs 140, the pre-charging resistor 20 can be stably accommodated in the accommodating groove 14, and is not easy to shake or fall off from the accommodating groove 14, thereby further improving the system safety.

In order to further improve the stability of the pre-charging resistor 20 after assembly, a plurality of first ribs 140 may be disposed, and the plurality of first ribs 140 may be disposed at intervals on the circumferential wall of the accommodating groove 14.

As shown in fig. 6, the pre-charge resistor 20 may include a pre-charge resistor body 22 and a pair of terminals 24 disposed on the pre-charge resistor body 22; a pair of through holes 142 through which the corresponding terminals 24 pass are provided on the bottom wall of the receiving groove 14 opposite to the notch of the receiving groove 14, respectively, thereby facilitating the assembly of the pre-charging resistor 20.

As shown in fig. 2, a mounting opening 144 may be opened on a bottom wall of the receiving groove 14 opposite to the notch of the receiving groove 14; in addition, an elastic arm 180 connected to the mounting opening 144 and a second protruding rib 182 disposed on the elastic arm 180 and protruding toward the inside of the accommodating groove 14 may be disposed, the second protruding rib 182 may be located in the accommodating groove 14, and the elastic arm 180 may drive the second protruding rib 182 to swing back and forth along a direction from the inside of the accommodating groove 14 to the outside of the accommodating groove 14, so that the second protruding rib 182 may be in close contact with the bottom wall of the pre-charging resistor 20 facing the accommodating groove 14. The battery distribution box inevitably shakes during transportation or use, so that the pre-charging resistor 20 assembled in the accommodating groove 14 also shakes along with the battery distribution box, and the elastic arm 180 is arranged to drive the second convex rib 182 to shake adaptively along with the pre-charging resistor 20, so that the second convex rib 182 can be in close contact with the wall of the bottom wall of the pre-charging resistor 20 facing the accommodating groove 14, namely the wall of the terminal 24 of the pre-charging resistor 20, and the probability that the pre-charging resistor 20 falls out of the accommodating groove 14 is further reduced. In addition, the second rib 182 occupies the space of the accommodating groove 14, but the elastic arm 180 can swing back and forth in the direction from the inside of the accommodating groove 14 to the outside of the accommodating groove 14, so that even if the dimension error of the second rib 182 from the original design is large, the mounting of the pre-charging resistor 20 is not affected. Thus, the manufacturing accuracy of the second beads 182 is also lowered.

To facilitate the installation of the plug 26 of the battery distribution box, such as a high voltage collection plug, as shown in fig. 4 and 5, a slot 19 may be provided on the wall of the receiving slot 14, the slot 19 being located outside the receiving slot 14, the slot 19 being capable of receiving the insertion arm 260 of the plug 26 of the battery distribution box. The insertion groove 19 may be disposed on a bottom wall of the accommodation groove 14 opposite to the notch.

The utility model also provides a battery distribution box, battery distribution box includes the utility model provides a battery distribution box shell. Through set up in the battery distribution box the utility model provides a battery distribution box shell can be convenient for pre-charging resistance 20's assembly to make pre-charging resistance 20 be difficult for deviating from, improved battery distribution box's safety in utilization greatly.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The battery distribution box shell is characterized by comprising a lower shell (12), wherein a containing groove (14) capable of containing a pre-charging resistor (20) is formed in the lower shell (12), the battery distribution box shell comprises a stopping portion (16) arranged on the lower shell (12), and the stopping portion (16) is arranged to block the pre-charging resistor (20) from falling out of the containing groove (14).

2. The battery distribution box housing according to claim 1, wherein the stopper (16) comprises a stopper elastic arm (160) disposed on the lower case (12), the stopper elastic arm (160) is configured to swing toward an outer direction of the accommodating groove (14), the stopper (16) comprises a stopper boss (162) disposed on the stopper elastic arm (160) and protruding toward the accommodating groove (14), and the stopper boss (162) is configured to block the pre-charging resistor (20) from coming out of the accommodating groove (14).

3. The battery distribution box housing according to claim 2, wherein the walls of the receiving groove (14) are notched, wherein: the stop spring arm (160) is disposed within the notch.

4. The battery distribution box housing according to claim 3, wherein a wall of the stopper boss (162) toward the center axis of the accommodation groove (14) is provided as an inclined wall (164), the inclined wall (164) gradually approaching the center axis of the accommodation groove (14) in a direction from a notch of the accommodation groove (14) to a bottom wall of the accommodation groove (14) opposite to the notch.

5. The battery distribution box housing according to claim 1, comprising a first rib (140) provided at a circumferential wall of the accommodation groove (14) and protruding toward the inside of the accommodation groove (14), the first rib (140) being provided so as to be capable of coming into close contact with the pre-charging resistor (20) accommodated in the accommodation groove (14).

6. A battery distribution box housing according to claim 5, comprising a plurality of said first ribs (140), said plurality of said first ribs (140) being spaced apart from a circumferential wall of said receiving groove (14).

7. The battery distribution box housing according to claim 1, wherein the pre-charge resistor (20) comprises a pre-charge resistor body (22) and a pair of terminals (24) provided to the pre-charge resistor body (22);

and a pair of through holes (142) for the corresponding terminals (24) to pass through are formed in the bottom wall of the accommodating groove (14) opposite to the notches of the accommodating groove (14).

8. The battery distribution box housing according to claim 1, wherein a mounting opening (144) is opened on a bottom wall of the receiving groove (14) opposite to the notch of the receiving groove (14);

the battery distribution box shell comprises an elastic arm (180) connected to the mounting opening (144) and a second convex rib (182) arranged on the elastic arm (180) and protruding towards the inside of the accommodating groove (14), wherein the elastic arm (180) can drive the second convex rib (182) to swing back and forth along the direction from the inside of the accommodating groove (14) to the outside of the accommodating groove (14) so that the second convex rib (182) can be in close contact with the wall, facing the bottom wall of the accommodating groove (14), of the pre-charging resistor (20).

9. The battery distribution box housing according to any of claims 1 to 8, characterized in that it comprises a plug-in slot (19) arranged in a wall of the receiving slot (14) and outside the receiving slot (14), said plug-in slot (19) being insertable by a plug-in arm (260) of a plug-in (26) of a battery distribution box.

10. A battery distribution box, characterized in that it comprises a battery distribution box housing according to any of claims 1-9.