Power supply device

Abstract

The utility model relates to the technical field of power supplies, and discloses a power supply device, which comprises a battery cell component and a pole component, the battery cell component comprises a battery cell, an upper cover and a lower shell, the upper cover is provided with an accommodating hole, the lower shell is provided with an accommodating cavity for accommodating the battery cell, and the upper cover covers the lower shell to cover the battery cell; the pole assembly comprises a pole and a first conducting bar, the pole penetrates through the accommodating hole and is fixed at the top of the battery cell, one end of the first conducting bar is connected with the pole, and the other end of the first conducting bar is fixed on the battery cell, so that the pole is electrically connected with the battery cell. The utility model aims to solve the technical problems that the connection between the battery cell and the power supply pole through the power line is not beneficial to line layout, and the manufacturing cost of the product is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field especially relates to a power supply device. BACKGROUND

[0002] At present on the market, the starting power supply of the automobile is connected with the power supply pole through silica gel power line, because the length of the power line is too large, it is not conducive to the layout of the circuit, and the stability of the power supply system may be affected due to the circuit interference. The length of the power line is too large, which increases the use of raw materials and the manufacturing cost of the product. UTILITY MODEL CONTENTS

[0003] The utility model discloses a power supply device, to solve the technical problem of connecting the electric core with the power supply pole through the power line, which is not conducive to the layout of the circuit and increases the manufacturing cost of the product.

[0004] In order to realize the above-mentioned purpose, the utility model provides a power supply device, it includes:

[0005] The electric core assembly includes an electric core, an upper cover and a lower shell, the upper cover is provided with a containing hole, the lower shell is provided with a containing cavity for containing the electric core, and the upper cover is covered on the lower shell to cover the electric core.

[0006] The pole assembly includes a pole and a first conductive row, the pole is arranged in the containing hole and fixed on the top of the electric core, one end of the first conductive row is connected with the pole, and the other end of the first conductive row is fixed on the electric core, so that the pole and the electric core form electrical connection.

[0007] In the power supply device of the application, the pole assembly further includes a first fastener, and the pole is connected and fixed with the first conductive row through the first fastener.

[0008] In the power supply device of the application, the pole assembly further includes a first fixing piece, the first fixing piece is arranged on the top of the electric core, and the first fixing piece is provided with a mounting hole for fixing the first fastener.

[0009] In the power supply device of the application, the electric core assembly includes a plurality of electric cores.

[0010] The pole assembly further includes a second conductive row, the second conductive row is fixed on the top of all the electric cores and electrically connected with all the electric cores, and the first conductive row is connected and fixed with the second conductive row.

[0011] In the power supply device, the first conductive row comprises a first conductive part, a second conductive part and a connecting part, two ends of the connecting part are connected with the first conductive part and the second conductive part respectively, the second conductive row is connected and fixed with the first conductive part, and the pole column is connected and fixed with the second conductive part.

[0012] In the power supply device, the pole column assembly further comprises a second fastener, the first conductive part is provided with a first connecting hole, the second conductive row is provided with a second connecting hole, and the second fastener is arranged in the first connecting hole and the second connecting hole to connect and fix the second conductive row with the first conductive part.

[0013] In the power supply device, the pole column assembly further comprises a sealing ring, the sealing ring is sleeved on the pole column, and the sealing ring is arranged between the upper cover and the lower shell.

[0014] In the power supply device, the upper cover is provided with a mounting groove, and the accommodating hole is arranged in the mounting groove and communicates with the mounting groove.

[0015] The pole column assembly comprises a second fixing part, the second fixing part is embedded in the mounting groove, and the pole column is arranged in the accommodating hole and connected and fixed with the second fixing part in the mounting groove.

[0016] In the power supply device, the power supply device comprises epoxy glue, and the epoxy glue is filled in the gap between the pole column and the upper cover.

[0017] In the power supply device, the first conductive row is a copper row.

[0018] The power supply device has the advantages that:

[0019] The power supply device comprises a battery cell, an upper cover and a lower shell, the battery cell is arranged in a receiving cavity of the lower shell, and the upper cover is arranged on an opening end of the lower shell to form a battery cell assembly. The upper cover is provided with an accommodating hole for accommodating a pole column. The pole column comprises a positive pole column and a negative pole column, and the pole column has a columnar structure, the diameter of the pole column is slightly smaller than that of the accommodating hole and the pole column is arranged in the accommodating hole. The first conductive row can have a curved or folded shape, and can adapt to the space layout inside the battery cell assembly. The upper end of the first conductive row is connected with the pole column, and the lower end of the first conductive row is fixed to the battery cell. Compared with the mode of connecting the battery cell and the pole column through a power line, the power supply device adopts the first conductive row to replace the power line, optimizes the connection mode of the battery cell and the pole column, improves the stability of the power supply device, reduces the risk of failure caused by line interference, and reduces the use of power line materials, so that the overall structure of the power supply device is more compact. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The explosion schematic diagram of the power supply device provided by the embodiment of the present application is shown in the figure.

[0022] Figure 2 The cross-sectional schematic diagram of the power supply device provided by the embodiment of the present application is shown in the figure.

[0023] The marks in the figure are as follows:

[0024] 1, battery cell; 2, upper cover; 201, accommodating hole; 202, mounting groove; 3, lower shell; 4, pole; 5, first conductive row; 501, first conductive part; 502, second conductive part; 503, connecting part; 6, first fastener; 7, first fixing part; 701, mounting hole; 8, second conductive row; 9, second fastener; 10, sealing ring; 11, second fixing part; 12, bracket. DETAILED DESCRIPTION

[0025] The specific implementation of the present application will be further described in detail in combination with the drawings and embodiments. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0026] In the description of the present application, it should be explained that the positions or location relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer" and the like in the present application are based on the position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices and elements indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "first", "second" and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information.

[0028] As Figure 1 and Figure 2As shown, the utility model embodiment provides a kind of power supply device, including electric core component and pole post component, electric core component includes electric core 1, upper cover 2 and lower shell 3, upper cover 2 is equipped with accommodating hole 201, lower shell 3 is equipped with the accommodating cavity for accommodating electric core 1, upper cover 2 covers in lower shell 3 to cover electric core 1;Pole post component includes pole post 4 and first conductive row 5, pole post 4 is arranged in accommodating hole 201 and is fixed at the top of electric core 1, one end of first conductive row 5 is connected with pole post 4, the other end of first conductive row 5 is fixed to electric core 1, to make pole post 4 and electric core 1 form electric connection.

[0029] In the embodiment, electric core 1 is the core component of power supply device, for storing electric energy.Lower shell 3 is below upper cover 2, is equipped with an accommodating cavity, for accommodating electric core 1, upper cover 2 cooperates with lower shell 3 and covers and protects electric core 1.Pole post 4 passes through the accommodating hole 201 of upper cover 2, and is fixed at the top of electric core 1, for connecting with external circuit and transmitting electric energy.First conductive row 5 plays the role of electric connection, realizes the electric energy transmission between pole post 4 and electric core 1.

[0030] Based on the above technical scheme, electric core 1 is placed in the accommodating cavity of lower shell 3, and upper cover 2 is covered on the open end of lower shell 3 by bolts or other fastening methods to form an electric core assembly.Upper cover 2 is provided with an accommodating hole 201 for accommodating pole post 4.Pole post 4 includes a positive pole post and a negative pole post, and is in a columnar structure with a diameter slightly smaller than the accommodating hole 201 and arranged in the accommodating hole 201.First conductive row 5 can be in a curved or folded shape to adapt to the spatial layout inside the electric core assembly.The upper end of first conductive row 5 is connected to pole post 4, and the lower end of first conductive row 5 is fixed to electric core 1.Compared to connecting electric core 1 and pole post 4 by power lines, the embodiment uses first conductive row 5 instead of power lines, optimizes the connection method of electric core 1 and pole post 4, improves the stability of the power supply device, reduces the risk of failure caused by line interference, reduces the use of power lines, and makes the overall structure of the power supply device more compact.

[0031] In some embodiments, as shown in Figure 1 and Figure 2 Pole post component further includes first fastener 6, and pole post 4 is connected and fixed with first conductive row 5 through first fastener 6.

[0032] Specifically, first fastener 6 is used to ensure the close connection between pole post 4 and first conductive row 5, prevent first conductive row 5 from loosening or falling off from pole post 4 due to vibration or other external forces, and improve the electrical connection stability of the power supply device.

[0033] For example, first fastener 6 can adopt fastening elements such as bolts, nuts, screws, etc., and corresponding threaded holes can be provided at the connection between pole post 4 and first conductive row 5, and then the bolts are passed through the holes and tightened to achieve the fastening effect.

[0034] In some embodiments, as shown in Figure 1 and Figure 2 The pole assembly further comprises a first fixing member 7 arranged at the top of the battery cell 1, and the first fixing member 7 is provided with a mounting hole 701 for fixing the first fastener 6.

[0035] Specifically, in order to further improve the stability of the connection, the first fixing member 7 is arranged at the top of the battery cell 1 in this embodiment, and the first fixing member 7 is fixed at the top of the battery cell 1 by welding or other connection methods. Then, the first fastener 6 (such as a bolt or a screw) is used to pass through the mounting hole 701, and then the connection part of the first conductive row 5 and the pole 4 is fastened with the first fixing member 7.

[0036] In some embodiments, as shown in Figure 1 The battery cell assembly comprises a plurality of battery cells 1; the pole assembly further comprises a second conductive row 8 fixed at the top of all the battery cells 1 and electrically connected with all the battery cells 1; and the first conductive row 5 is connected and fixed with the second conductive row 8.

[0037] Specifically, the power supply device adopts the common assembly of a plurality of battery cells 1, and has a larger electric energy storage capacity. In this embodiment, the second conductive row 8 is fixed at the top of all the battery cells 1 and electrically connected with the connection ports of all the battery cells 1. The electric energy of all the battery cells 1 is collected to the second conductive row 8, and then transmitted from the second conductive row 8 to the first conductive row 5, and then transmitted outward through the pole 4. In this way, all the battery cells 1 participate in the electric energy transmission, so as to realize the electric energy transmission function of the entire power supply device.

[0038] In some embodiments, as shown in Figure 1 and Figure 2 The first conductive row 5 comprises a first conductive part 501, a second conductive part 502, and a connecting part 503, the two ends of the connecting part 503 are connected with the first conductive part 501 and the second conductive part 502 respectively, the second conductive row 8 is connected and fixed with the first conductive part 501, and the pole 4 is connected and fixed with the second conductive part 502.

[0039] Specifically, after being installed and fixed, the pole 4 usually has a certain height difference with the top of the battery cell 1, which is caused by the installation position of the pole 4 or the layout of other components inside the power supply device. In order to meet the electrical connection between the pole 4 and the battery cell 1, the first conductive row 5 is designed in a bent structure. As shown in Figure 2As shown, in the case of the power supply device being placed horizontally, the first conductive part 501 extends along the horizontal direction on the upper surface of the second conductive row 8 to facilitate the connection of the second conductive row 8, the second conductive part 502 extends along the horizontal direction on the upper surface of the first fixing member 7 to facilitate the connection of the pole 4, and the connecting part 503 extends along the vertical direction and connects the first conductive part 501 and the second conductive part 502 respectively to adapt to the height difference inside the power supply device, so that the first conductive row 5 can span the height difference and realize the electrical connection between the pole 4 and the battery cell 1.

[0040] In some embodiments, as shown in Figure 2 As shown, the pole assembly further comprises a second fastener 9, the first conductive part 501 is provided with a first connecting hole, the second conductive row 8 is provided with a second connecting hole (not shown in the figure), and the second fastener 9 is threaded through the first connecting hole and the second connecting hole to connect and fix the second conductive row 8 and the first conductive part 501.

[0041] In this embodiment, the second fastener 9 is used to firmly connect the second conductive row 8 and the first conductive part 501 together, thereby enhancing the connection stability of the first conductive row 5 and the second conductive row 8 and ensuring the normal transmission of electric energy between the first conductive row 5 and the second conductive row 8.

[0042] In the connection process, the first connecting hole of the first conductive part 501 is aligned with the second connecting hole of the second conductive row 8, then the second fastener 9 (such as a bolt, a screw, etc.) is threaded through the aligned first connecting hole and second connecting hole, and finally the second fastener 9 is rotated to apply sufficient fastening force to tightly connect the second conductive row 8 and the first conductive part 501.

[0043] In some embodiments, as shown in Figure 1 and Figure 2 As shown, the pole assembly further comprises a sealing ring 10, the sealing ring 10 is sleeved on the pole 4, and the sealing ring 10 is attached between the upper cover 2 and the lower shell 3.

[0044] Specifically, the main function of the sealing ring 10 is to provide sealing performance. The sealing ring 10 is sleeved on the pole 4 to wrap the pole 4, thereby preventing external moisture or dust from entering the inside of the power supply device through the gap between the upper cover 2 and the lower shell 3 and the gap between the pole 4 and the accommodation hole 201. The sealing ring 10 is made of materials with elasticity, wear resistance and corrosion resistance, such as rubber, silicone or polyurethane, etc.

[0045] In some embodiments, as shown in Figure 1 As shown, the upper cover 2 is provided with a mounting groove 202, the accommodation hole 201 is arranged in the mounting groove 202 and communicates with the mounting groove 202; the pole assembly comprises a second fixing member 11, the second fixing member 11 is embedded in the mounting groove 202, and the pole 4 is threaded through the accommodation hole 201 and connected and fixed with the second fixing member 11 in the mounting groove 202.

[0046] Specifically, an installation groove 202 is formed on the upper cover 2 corresponding to the position of the pole 4, and a containing hole 201 penetrating the upper cover 2 is formed in the installation groove 202. The pole 4 is connected and fixed with the second fixing member 11 in the installation groove 202 through threaded connection, welding, pressure connection or other ways after penetrating the containing hole 201. In this embodiment, the pole 4 is fixed on the upper cover 2 by the second fixing member 11, so that the pole 4 cannot be loosened or fallen off, and the reliability of the power supply device is further improved.

[0047] In some embodiments, the power supply device comprises epoxy glue, which is filled in the gap between the pole 4 and the upper cover 2.

[0048] Specifically, the epoxy glue is a commonly used adhesive and sealing material. In this embodiment, the epoxy glue is filled in the gap between the pole 4 and the upper cover 2 to prevent moisture and dust from entering, and the epoxy glue can improve the electrical insulation performance inside the power supply device as an insulating material.

[0049] In some embodiments, the first conductive bar 5 is a copper bar.

[0050] Specifically, the first conductive bar 5 and the second conductive bar 8 have different functions in the power supply device, so the current carrying capacity of the two conductive bars is also different. The first conductive bar 5 is a connecting component of all the battery cells 1 and the pole 4, which needs to bear a large current to transmit the electric energy generated by the battery cells 1 to the external circuit, so the current carrying capacity requirement is high. The second conductive bar 8 is a connecting component between the battery cells 1 and the battery cells 1, which is used to ensure the transmission of electric energy between the battery cells 1, and needs to bear a relatively small current, so the current carrying capacity requirement is relatively low.

[0051] Since the first conductive bar 5 needs to bear a large current, a copper bar with excellent electrical conductivity, high mechanical strength and good thermal stability is preferred. The current carrying capacity of the second conductive bar 8 is relatively low, and an aluminum bar with low cost, light weight and good corrosion resistance is preferred.

[0052] In some embodiments, the first conductive bar 5 and the second conductive bar 8 can also be made of metal materials of the same material. The current carrying capacity of the conductor of the same material is proportional to its cross-sectional area. The larger the cross-sectional area of the conductor, the greater the current it can carry. Therefore, even if the two metal pieces are made of the same material, if the cross-sectional areas of the two metal pieces are different, the current carrying capacity of the two metal pieces is also different.

[0053] For example, the first conductive bar 5 and the second conductive bar 8 are both copper bars. Under the condition that other conditions are the same, the cross-sectional area of the first conductive bar 5 is greater than that of the second conductive bar 8, so the current carrying capacity of the first conductive bar 5 is greater than that of the second conductive bar 8.

[0054] In some embodiments, the first conductive row 5 and the second conductive row 8 are integrally formed, which is simple in structure, easy to form, and convenient to connect and install.

[0055] In some embodiments, as shown in Figure 2 The power supply device includes a bracket 12 for fixing the first fixing member 7. Since the first fixing member 7 is inconvenient to be directly connected with the battery cell 1, the bracket 12 is arranged on the top of the battery cell 1 in the embodiment, and the first fixing member 7 is fixed on the bracket 12 by bolts, nuts, buckles or other fasteners, so that the bracket 12 provides support and fixing effect.

[0056] It should be understood that the term "and / or" used in the utility model specification and the appended claims means any combination of one or more of the associated listed terms and all possible combinations, and includes these combinations. It should be noted that in this document, the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or system. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0057] The above-mentioned utility model embodiment serial number is only for description, and does not represent the advantages and disadvantages of the embodiment. The above description is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A power supply device characterized by comprising: The power supply device comprises: an electric core assembly comprising an electric core, an upper cover and a lower shell, the upper cover being provided with a receiving hole, the lower shell being provided with a receiving cavity for receiving the electric core, the upper cover being covered on the lower shell to cover the electric core; a pole column assembly comprising a pole column and a first conductive row, the pole column being provided through the receiving hole and fixed on the top of the electric core, one end of the first conductive row being connected with the pole column, the other end of the first conductive row being fixed on the electric core, so that the pole column and the electric core are electrically connected.

2. The power supply device according to claim 1, characterized by The pole column assembly further comprises a first fastener, and the pole column is connected and fixed with the first conductive row through the first fastener.

3. The power supply device according to claim 2, characterized by The pole column assembly further comprises a first fixing member, the first fixing member being provided on the top of the electric core, the first fixing member being provided with a mounting hole for fixing the first fastener.

4. The power supply device according to claim 2, characterized by The electric core assembly comprises a plurality of electric cores. The pole column assembly further comprises a second conductive row, the second conductive row being fixed on the top of all the electric cores and being electrically connected with all the electric cores; the first conductive row is connected and fixed with the second conductive row.

5. The power supply device according to claim 4, characterized by The first conductive row comprises a first conductive part, a second conductive part and a connecting part, the two ends of the connecting part being connected with the first conductive part and the second conductive part respectively, the second conductive row being connected and fixed with the first conductive part, and the pole column being connected and fixed with the second conductive part.

6. The power supply device according to claim 5, wherein The pole column assembly further comprises a second fastener, the first conductive part being provided with a first connecting hole, the second conductive row being provided with a second connecting hole, and the second fastener being provided through the first connecting hole and the second connecting hole to connect and fix the second conductive row with the first conductive part.

7. The power supply device according to claim 1, wherein The pole column assembly further comprises a sealing ring, the sealing ring being sleeved on the pole column, and the sealing ring being attached between the upper cover and the lower shell.

8. The power supply device according to claim 1, characterized by The upper cover is provided with a mounting groove, and the receiving hole is arranged in the mounting groove and communicates with the mounting groove. The pole column assembly comprises a second fixing member, the second fixing member being embedded in the mounting groove, the pole column being provided through the receiving hole and being connected and fixed with the second fixing member in the mounting groove.

9. The power supply device according to claim 1, characterized by The power supply device comprises epoxy glue, the epoxy glue being filled in the gap between the pole column and the upper cover.

10. The power supply device according to any one of claims 1 to 9, characterized by, The first conductive row is a copper row.

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