Distribution box for battery and battery pack

Abstract

The utility model relates to the field of battery systems, in particular to a distribution box for batteries and a battery pack. The power distribution box for the battery comprises a shell and a relay, a clamping groove is formed in the shell, and the relay is installed in the clamping groove; the groove wall of the clamping groove is provided with a buckle facing the relay so as to clamp the top surface of the relay. The groove bottom of the clamping groove is provided with a protrusion so as to abut against the bottom face of the relay, and therefore the protrusion is in interference fit with the relay. According to the distribution box for the battery, the relay is reliably fixed in the shell through the buckles and the protrusions, other installation parts and operation tools are not needed, operation is easy and efficient, and cost is low.

Description

TECHNICAL FIELD

[0001] The application relates to the field of battery systems, in particular to a battery distribution box and a battery pack. BACKGROUND

[0002] A battery driving unit of a battery pack is provided with a pre-charging relay, and the pre-charging relay is generally fixed in the shell of the battery driving unit by bolts, which requires the use of materials such as screws and nuts and related locking tools, and has the disadvantages of high cost and low efficiency. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a battery distribution box and a battery pack for fixing and mounting a pre-charging relay, and has high mounting efficiency and low cost.

[0004] The application provides a battery distribution box, which comprises a shell and a relay.

[0005] A clamping groove is arranged in the shell, and the relay is mounted in the clamping groove.

[0006] A clamping buckle is arranged on the groove wall of the clamping groove and faces the relay, so as to clamp the top surface of the relay; and a protrusion is arranged on the groove bottom of the clamping groove, so as to abut against the bottom surface of the relay, thereby achieving interference fit with the relay.

[0007] In the above technical solution, further, the clamping groove has a plurality of groove walls in different directions to surround the relay, and each groove wall is provided with a recessed defect; each clamping buckle is arranged on the defect, and the clamping buckle is connected with the groove wall, so that the clamping buckle has elasticity.

[0008] In the above technical solution, further, the clamping buckle comprises a connecting part and a clamping part; the connecting part is in the shape of a rod, one end of the connecting part is connected with the groove wall, and the other end of the connecting part is connected with the clamping part.

[0009] In the above technical solution, further, the clamping part is provided with a first guide inclined surface, the first guide inclined surface faces the relay and is along the groove depth direction of the clamping groove, and the distance between the first guide inclined surface and the side wall of the relay is gradually decreasing.

[0010] In the above technical solution, further, the groove wall is also provided with a heightening part; the heightening part is arranged on both sides of the clamping buckle, and the height of the heightening part is higher than the height of the clamping buckle in the groove depth direction of the clamping groove.

[0011] In the technical scheme, further, the plurality of buckles are arranged at intervals in the circumferential direction of the relay, and at least one buckle is arranged at any side wall of the relay.

[0012] In the technical scheme, further, the groove wall is provided with a limiting rib to limit the side wall of the relay.

[0013] The plurality of limiting ribs are arranged at intervals in the circumferential direction of the relay, and at least one limiting rib is arranged at any side wall of the relay.

[0014] In the technical scheme, further, the limiting rib is provided with a second guide slope, which gradually approaches the side wall of the relay in the direction of the groove depth of the clamping groove.

[0015] In the technical scheme, further, the groove bottom of the clamping groove further comprises a rebound rib, which forms a hollow structure.

[0016] The rebound rib is connected with the protrusion, the protrusion protrudes from the surface of the rebound rib towards the relay, and the rebound rib has a continuous pressure applied to the relay.

[0017] The application also provides a battery pack comprising the power distribution box for a battery.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] The power distribution box for a battery provided by the application reliably fixes the relay in the shell through the buckle and the protrusion, without the need for other mounting parts and operating tools, and is simple and efficient to operate and low in cost.

[0020] The application also provides a battery pack comprising the power distribution box for a battery. Based on the above analysis, the battery pack also has the beneficial effects described above, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the application or the technical schemes in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 The structure diagram of the power distribution box for a battery provided by the application;

[0023] Figure 2 A partial cross-sectional structural schematic diagram of a battery distribution box is provided in the present application.

[0024] Figure 3 A first structural schematic diagram of a card slot is provided in the present application.

[0025] Figure 4 A second structural schematic diagram of a card slot is provided in the present application.

[0026] In the figure: 101 - housing; 102 - relay; 103 - card slot; 104 - buckle; 105 - protrusion; 106 - missing part; 107 - connecting part; 108 - clamping part; 109 - first guide slope; 110 - raised part; 111 - rebound rib; 112 - limiting rib; 113 - second guide slope. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Embodiment one

[0031] Reference Figures 1 to 4As shown, the battery distribution box provided in this application is specifically a high-voltage control box for a battery pack. The battery distribution box includes a housing 101 and a relay 102. The relay 102 is specifically a pre-charge relay, and the housing 101 can be used to install and fix the pre-charge relay.

[0032] Specifically, a slot 103 is provided inside the housing 101, and the relay 102 is installed in the slot 103. The bottom surface of the relay 102 is located at the bottom of the slot 103, and the top surface of the relay 102 is located at the opening of the slot 103. A latch 104 is provided on the wall of the slot 103, facing the relay 102, to engage the top surface of the relay 102 and prevent the relay 102 from detaching from the opening of the slot 103. Furthermore, a protrusion 105 is provided at the bottom of the slot 103 to abut against the bottom surface of the relay 102. The protrusion 105 and the latch 104 press against both ends of the relay 102, respectively, thus achieving an interference fit and securing the relay 102 more firmly.

[0033] The battery distribution box provided in this application reliably fixes the relay 102 inside the housing 101 by means of the buckle 104 and the protrusion 105, without the need for other installation parts and operating tools, making it simple, efficient and low cost.

[0034] In this embodiment, the number of latches 104 is multiple, and the multiple latches 104 are spaced apart around the relay 102, and at least one latch 104 is provided on any side wall of the relay 102.

[0035] Preferably, the slot 103 has multiple slot walls in multiple different directions to surround the relay 102, each slot wall is provided with a recessed notch 106; each buckle 104 is provided in the notch 106 and the buckle 104 is connected to the slot wall so that the buckle 104 is elastic.

[0036] In this embodiment, such as Figure 3 As shown, for precharged relays with a cubic structure, the slot 103 is also correspondingly set as a square slot so that the precharged relay can be fitted and installed in the slot 103, thereby improving the installation firmness. For relays 102 of other shapes and sizes, the slot 103 can be set accordingly. Figure 3 The four circumferential walls of the slot 103 shown are provided with buckles 104. Multiple buckles 104 can be used to snap and fix the precharge relay from all four sides, resulting in a better fixing effect.

[0037] In addition, each latch 104 is provided in the corresponding notch 106, which can separate the latch 104 from the main structure of the groove wall so that the latch 104 has a certain elasticity relative to the groove wall. When the relay 102 is installed from the slot of the slot 103 into the slot 103, the latch 104 can spring outward to allow the relay 102 to enter the slot 103. After the relay 102 is installed, the latch 104 can spring back to press and fix the relay 102.

[0038] Specifically, the buckle 104 includes a connecting portion 107 and a locking portion 108; the connecting portion 107 is rod-shaped, with its bottom end connected to the groove wall and its top end connected to the locking portion 108. When the buckle 104 springs open outward, the rod-shaped connecting portion 107 can bend and spring back to a certain extent, thereby giving the buckle 104 a certain degree of elasticity.

[0039] In an optional embodiment, the snap-fit ​​portion 108 is provided with a first guide slope 109. The first guide slope 109 faces the relay 102, and along the groove depth direction of the snap-fit ​​groove 103, the distance between the first guide slope 109 and the side wall of the relay 102 gradually decreases.

[0040] In this embodiment, when the relay 102 is assembled into the slot 103, the first guide slope 109 of the latching portion 108 can contact the side wall of the relay 102. As the relay 102 gradually enters the slot 103, the first guide slope 109 causes the latching portion 108 to gradually bend outward until the relay 102 is fully inserted into the slot 103, at which point the latching portion 108 springs back to secure the relay 102. The first guide slope 109 serves to guide the relay 102 and allows the latching portion 108 to gradually bend, preventing it from breaking or being damaged.

[0041] In an optional embodiment, the groove wall is further provided with a raised portion 110; both sides of the latch 104 are provided with raised portions 110, and in the groove depth direction of the latch 103, the height of the raised portion 110 is higher than the height of the latch 104. The raised portion 110 forms a retaining wall structure on the top of the relay 102, and the height of the retaining wall structure is higher than the height of the latching portion 108, which can prevent the latch from being damaged and causing the relay 102 to detach when the housing is dropped.

[0042] In an optional embodiment, the bottom of the slot 103 further includes a spring rib 111, which forms a hollow structure; the spring rib 111 is connected to the protrusion 105; the protrusion 105 protrudes from the surface of the spring rib 111 toward the relay 102, and the spring rib 111 has a pressure that is continuously applied toward the relay 102.

[0043] In this embodiment, when the relay 102 is assembled into the slot 103, the protrusion 105 is in an interference fit with the relay 102, so that the spring rib 111 connected to the protrusion 105 is in an elastic deformation state, thereby enabling the spring rib 111 to continuously apply pressure to the relay 102, which can further press and fix the relay 102.

[0044] Example 2

[0045] The battery distribution box in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0046] See Figure 3 As shown, in an optional embodiment, the groove wall is provided with limiting ribs 112 to lock and limit the side wall of the relay 102; there are multiple limiting ribs 112, which are spaced apart in the circumference of the relay 102, and at least one limiting rib 112 is provided at any side wall of the relay 102.

[0047] In this embodiment, such as Figure 3 As shown in the figure, the four circumferential walls of the slot 103 are provided with limiting ribs 112. The limiting ribs 112 in multiple directions can lock and fix the precharge relay from all four sides, resulting in a better fixing effect. Each slot wall shown in the figure is provided with two spaced-apart limiting ribs 112, and the two limiting ribs 112 are located on both sides of the buckle 104, which can further improve the limiting and fixing effect.

[0048] In an optional embodiment, the limiting rib 112 is provided with a second guide slope 113. Along the groove depth direction of the slot 103, the distance between the second guide slope 113 and the side wall of the relay 102 gradually decreases. When the relay 102 is assembled into the slot 103, the second guide slope 113 of the limiting rib 112 can contact the side wall of the relay 102 to guide and limit the relay 102.

[0049] Example 3

[0050] This application provides a battery pack according to embodiment three, which includes the battery distribution box of any of the above embodiments. Therefore, it has all the beneficial technical effects of the battery distribution box of any of the above embodiments, which will not be repeated here.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A battery distribution box, characterized in that, Includes a housing (101) and a relay (102); The housing (101) is provided with a slot (103), and the relay (102) is installed in the slot (103); The slot (103) has a latch (104) facing the relay (102) on its groove wall to engage with the top surface of the relay (102); the bottom of the slot (103) has a protrusion (105) to abut against the bottom surface of the relay (102), thereby achieving an interference fit with the relay (102).

2. The battery distribution box according to claim 1, characterized in that, The slot (103) has multiple slot walls in multiple different directions to surround the relay (102), each slot wall is provided with a recessed notch (106); each of the latches (104) is provided in the notch (106), and the latches (104) are connected to the slot wall so that the latches (104) are elastic.

3. The battery distribution box according to claim 2, characterized in that, The buckle (104) includes a connecting part (107) and a snap-fit ​​part (108); the connecting part (107) is rod-shaped, one end of the connecting part (107) is connected to the groove wall, and the other end of the connecting part (107) is connected to the snap-fit ​​part (108).

4. The battery distribution box according to claim 3, characterized in that, The latching part (108) is provided with a first guide slope (109), which faces the relay (102) and gradually approaches the side wall of the relay (102) along the groove depth direction of the slot (103).

5. The battery distribution box according to claim 2, characterized in that, The groove wall is also provided with a raised part (110); the raised part (110) is provided on both sides of the buckle (104), and in the groove depth direction of the buckle groove (103), the height of the raised part (110) is higher than the height of the buckle (104).

6. The battery distribution box according to claim 2, characterized in that, The number of the latches (104) is multiple, and the multiple latches (104) are spaced apart in the circumference of the relay (102), and at least one latch (104) is provided on any side wall of the relay (102).

7. The battery distribution box according to claim 2, characterized in that, The groove wall is provided with a limiting rib (112) to lock and limit the side wall of the relay (102); The number of the limiting ribs (112) is multiple, and the multiple limiting ribs (112) are spaced apart in the circumferential direction of the relay (102), and at least one limiting rib (112) is provided on any side wall of the relay (102).

8. The battery distribution box according to claim 7, characterized in that, The limiting rib (112) is provided with a second guide slope (113), and along the groove depth direction of the slot (103), the distance between the second guide slope (113) and the side wall of the relay (102) gradually decreases.

9. The battery distribution box according to claim 1, characterized in that, The bottom of the slot (103) also includes a spring rib (111), which forms a hollow structure; The spring rib (111) is connected to the protrusion (105); the protrusion (105) protrudes from the surface of the spring rib (111) toward the relay (102), and the spring rib (111) has a pressure continuously applied toward the relay (102).

10. A battery pack, characterized in that, Includes a battery distribution box as described in any one of claims 1 to 9.

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