CN115020109B

CN115020109B - Cell housing for multi-needle type thin film capacitor and multi-needle type thin film capacitor

Info

Publication number: CN115020109B
Application number: CN202210707761.5A
Authority: CN
Inventors: 谭剑; 张峰; 顾邵伟
Original assignee: NANTONG XINJIANGHAI POWER ELECTRONICS CO Ltd
Current assignee: NANTONG XINJIANGHAI POWER ELECTRONICS CO Ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2024-06-25
Anticipated expiration: 2042-06-21
Also published as: CN115020109A

Abstract

The application discloses a cell shell for a multi-needle type thin film capacitor and the multi-needle type thin film capacitor, wherein the cell shell comprises: the battery pack comprises a shell body, a battery pack and a battery pack, wherein one side of the shell body is provided with an opening, and an installation cavity for installing a battery cell is formed in the shell body; the positioning assemblies are arranged on the circumferential side wall of the mounting cavity, and are all formed with vertically arranged positioning channels, wherein when the battery cell is arranged in the mounting cavity through the opening, the plurality of guide pins respectively pass through the positioning channels and are positioned in the positioning channels. The cell shell for the multi-needle type thin film capacitor and the multi-needle type thin film capacitor provided by the application can realize the positioning constraint of the pins on the cell in the vertical direction, obviously reduce the distance deviation between two adjacent pins, improve the accuracy of the distance between the adjacent pins, and further guarantee the quality of the multi-needle type thin film capacitor.

Description

Cell housing for multi-needle type thin film capacitor and multi-needle type thin film capacitor

Technical Field

The invention relates to the technical field of film capacitors, in particular to a cell shell for a multi-needle film capacitor and the multi-needle film capacitor.

Background

The multi-needle type film capacitor comprises a plastic shell and a battery cell, wherein one side of the plastic shell is provided with an opening, and the battery cell is transversely placed in the plastic shell through the opening and is filled with glue in the plastic shell to fix the battery cell. At least one guide pin is welded at both ends of the battery cell, and extends out of the plastic shell through the opening.

Referring to fig. 1-2, the pins are inclined to the left or right to a larger extent relative to the vertical direction due to processing errors, or the pins are inclined to the left or right to a larger extent relative to the vertical direction due to the fact that the battery cells are inclined and placed in the plastic shell, so that the distance between adjacent pins is difficult to guarantee, and the quality of the multi-pin film capacitor is affected.

Disclosure of Invention

In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a cell case for a multi-pin thin film capacitor and a multi-pin thin film capacitor.

In a first aspect, the present application provides a cell case for a multi-pin thin film capacitor, the multi-pin thin film capacitor including a cell provided with a plurality of pins, the cell case including:

the battery pack comprises a shell body, a battery pack and a battery pack, wherein one side of the shell body is provided with an opening, and an installation cavity for installing a battery cell is formed in the shell body;

the positioning assemblies are arranged on the circumferential side wall of the mounting cavity, and are all formed with vertically arranged positioning channels, wherein when the battery cell is arranged in the mounting cavity through the opening, the plurality of guide pins respectively pass through the positioning channels and are positioned in the positioning channels.

Further, the positioning assembly includes:

the fixing piece is fixedly arranged on the circumferential side wall of the mounting cavity;

The positioning piece is arranged at intervals between the positioning piece and the fixing piece to form a positioning channel, the positioning piece is slidably arranged on the circumferential side wall of the mounting cavity along the direction close to or far away from the fixing piece so as to move between a first position and a second position, the positioning piece pushes the guide needle to push the guide needle to be pressed against the positioning piece when in the first position, and the distance between the positioning piece and the fixing piece when in the second position is larger than a first preset distance.

Further, the circumference lateral wall of installation chamber is provided with the slide rail with setting element one-to-one, the setting element is provided with first spout and slides through first spout and set up in the slide rail, one side that the slide rail is close to the setting element is provided with first backstop face, first holding groove has been seted up to the roof groove wall of first spout, the locking piece has first backstop portion in the holding groove, the locking piece rotationally sets up in order to remove between storage position and the position of stretching out, when storage position, the locking piece is located first holding groove, when stretching out the position, the locking piece stretches out first holding groove, in order to make between first backstop portion and the first backstop face along the direction backstop cooperation of moving of setting element, wherein the rotation axial of locking piece sets up perpendicularly with the slip direction of setting element, and the focus of locking piece is located one side that the axis of rotation of locking piece kept away from the setting element.

Further, the first accommodating groove is provided with a first groove side wall close to the fixing piece, and the locking piece is provided with a second stop surface, and in the extending position, the second stop surface is in stop fit with the wall surface of the first groove side wall.

Further, the locking piece is provided with a stirring piece, the positioning piece is provided with a guide groove, the guide groove is correspondingly arranged with a rotating path of the stirring piece, the stirring piece penetrates through the guide groove, one end of the stirring piece extends out of the guide groove, and gaps are formed between two groove walls extending in the rotating direction of the stirring piece in the guide groove and the stirring piece.

Further, the locking piece has first side, and first side is concave to be equipped with the second accommodation groove, stirs the piece and sets up in the second accommodation groove, stirs one side of piece and is provided with first bellying and first bellying protrusion first side, and the second backstop face is located first bellying, and wherein stirs the piece and set up in order to remove between backstop position and dodge the position along the rotation axial slidable of locking piece, when the backstop position, in the direction of rotation along the locking piece second backstop face and the wall of first groove lateral wall at least part set up relatively, when dodging the position, in the direction of rotation along the locking piece second backstop face stagger the setting with the wall of first groove lateral wall.

Further, the mounting cavity comprises two opposite first side walls, two positioning assemblies are arranged on the two first side walls at intervals, and two sliding rails positioned on the first side walls are arranged at intervals to form a mounting channel;

The battery cell shell further comprises a driving piece and pushing pieces which are arranged in one-to-one correspondence with the sliding rails, the pushing pieces are provided with second sliding grooves, the first sliding grooves and the second sliding grooves are slidably mounted on the corresponding sliding rails through mounting channels, the pushing pieces are located on one sides of the positioning pieces, which are far away from the fixing pieces, the first pushing surfaces are arranged at one ends of the pushing pieces, which are far away from the fixing pieces, and are inclined downwards in the direction, which is far away from the fixing pieces, the driving piece is located between the two pushing pieces, the two sides of the driving piece are provided with second pushing surfaces, the driving piece is arranged in a movable mode in the vertical direction, and in the moving process, the driving piece is matched with the first pushing surfaces in a pushing mode through the second pushing surfaces so as to move the positioning pieces to the first positions through the pushing pieces.

Further, the mounting cavity is internally provided with a bearing surface for bearing the battery cell, and the bearing surface is arc-shaped.

Further, the distance between the positioning piece and the bearing surface is larger than the second preset distance.

In a second aspect, the application also provides a multi-pin film capacitor, which comprises a battery cell shell.

According to the cell shell for the multi-needle type thin film capacitor and the multi-needle type thin film capacitor, the plurality of positioning assemblies are arranged on the circumferential side wall of the mounting cavity, and the plurality of positioning assemblies are respectively provided with the vertically arranged positioning channels, wherein when the cell is mounted in the mounting cavity through the opening, the plurality of pins respectively pass through the plurality of positioning channels and are positioned in the positioning channels, so that the pins on the cell can be subjected to positioning constraint in the vertical direction, the distance deviation between two adjacent pins is obviously reduced, the accuracy of the distance between the adjacent pins is improved, and the quality of the multi-needle type thin film capacitor is further ensured.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic side view of a conventional cell;

fig. 2 is a schematic front view of a conventional battery cell;

Fig. 3 is a schematic perspective view of a battery cell casing according to an embodiment of the present application;

FIG. 4 is a partial cross-sectional view of the structure shown in FIG. 3;

FIG. 5 is a schematic top view of a positioning assembly assembled to a housing body according to another embodiment of the present application;

FIG. 6 is a schematic front view illustrating a positioning assembly assembled to a housing body according to another embodiment of the present application;

FIG. 7 is a schematic top view of a positioning assembly assembled to a housing body according to another embodiment of the present application;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

fig. 9 is an enlarged view of a portion B in fig. 8.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.

Referring to fig. 3-4, an embodiment of the present application provides a battery cell housing for a multi-pin thin film capacitor, which is used for storing battery cells in the multi-pin thin film capacitor. The battery cell comprises a battery cell main body 110 and a plurality of guide pins 120, wherein metal spraying layers are arranged at two ends of the battery cell main body 110, and the plurality of guide pins 120 are welded on the outer side of at least one metal spraying layer. The battery cell casing comprises a casing body 200, and the casing body 200 is made of an insulating material, such as, but not limited to, plastic. The top side of the case body 200 has an opening, and a mounting cavity 201 for mounting the battery cell is formed in the case body 200, and the battery cell is mounted in the mounting cavity 201 through the opening. The housing specifically includes a bottom plate portion 210 and a shroud portion 220, where the shroud portion 220 is disposed around the bottom plate portion 210, and the bottom plate portion 210 and the shroud portion 220 together form the installation cavity 201, and an inner sidewall of the shroud portion 220 is a circumferential sidewall of the installation cavity 201. The positioning assemblies 300 are disposed in one-to-one correspondence with the plurality of pins 120. The positioning assemblies 300 are arranged on the circumferential side wall of the mounting cavity 201 at intervals, and the positioning assemblies 300 are respectively provided with a positioning channel 301 which is vertically arranged. When the battery cells are loaded into the mounting cavity 201 through the opening, the plurality of pins 120 respectively pass through the plurality of positioning channels 301 and are positioned in the positioning channels 301. The lead 120 has opposite first and second ends 121, the first end being soldered to the metallization layer. After the cell is mounted to the mounting cavity 201, the second end 121 of the lead 120 extends out of the opening. When the pins 120 pass through the positioning channel 301, the positioning channel 301 can perform positioning constraint on the skewed pins 120 in the vertical direction, so that at least the first end of each skewed pin 120 is basically kept in a vertical state, the distance deviation between two adjacent pins 120 is obviously reduced, the distance deviation between two adjacent pins 120 connected to the same metal spraying layer can be reduced, the accuracy of the distance between the adjacent pins 120 is improved, and the quality of the multi-pin film capacitor is further ensured.

The portion of the first end of the lead 120 not contacted with the metal spraying layer is covered by the solder 130. The guide pin 120 is a straight rod structure and can have a certain deformability, for example, the guide pin 120 is a metal round rod.

In some embodiments of the application, the mounting cavity 201 has a bearing surface 241 therein for bearing the electrical cells. The bottom surface 111 of the cell main body 110 is arc-shaped, and the bearing surface 241 is arc-shaped and is matched with the bottom surface 111 of the cell main body 110. The arc-shaped bearing surface 241 is adapted to the bottom surface 111 of the cell main body 110 to position and support the cell main body 110, so as to prevent the cell main body 110 from moving left and right.

The mounting cavity 201 is provided therein with a carrying plate 240, the carrying plate 240 is fixedly disposed on the bottom plate portion 210 of the mounting cavity 201, and a side surface of the carrying plate 240 away from the bottom plate portion 210 is the carrying surface 241.

When the cell main body 110 is installed in the installation cavity 201, two side surfaces of the cell main body 110 between the two metal spraying layers may contact with the circumferential side wall of the installation cavity 201.

With continued reference to fig. 3-4, in some embodiments of the present application, the positioning assembly 300 includes a fixing member 310 and a positioning member 320, where the fixing member 310 and the positioning member 320 are spaced apart to form a positioning channel 301, and the fixing member 310 and the positioning member 320 are fixedly disposed on a circumferential sidewall of the mounting cavity 201, so that the size of the positioning channel 301 is fixedly disposed, that is, the width of the positioning channel 301 is a fixed value. By the arrangement, the positioning assembly 300 can realize positioning constraint on the guide pin 120 and simultaneously can simplify the structure of the positioning assembly 300.

It should be appreciated that since the outer periphery of the first end of the lead 120 is wrapped with the solder 130, the width of the positioning channel 301 is much larger than the diameter of the lead 120, and the lead 120 has a relatively large moving space in the positioning channel 301, so that the positioning constraint effect of the positioning assembly 300 on the lead 120 is difficult to optimize.

Wherein, the fixing member 310 and the fixing member 310 may have a block structure and extend in a vertical direction.

Referring to fig. 5, the present application further provides an embodiment of the positioning assembly 300, which is different from the embodiment described above, specifically: the positioning assembly 300 comprises a fixing member 310 and a positioning member 320, wherein a positioning channel 301 is formed by arranging the fixing member 310 and the positioning member 320 at intervals, the fixing member 310 is fixedly arranged on the circumferential side wall of the mounting cavity 201, and the positioning member 320 is slidably arranged on the circumferential side wall of the mounting cavity 201 along the direction approaching to or separating from the fixing member 310 so as to move between a first position and a second position, so that the size of the positioning channel 301 can be adjusted. When in the first position, the positioning element 320 pushes the guide pin 120 to press the guide pin 120 against the positioning element 320, so that the accurate positioning of the guide pin 120 is realized, and the guide pin 120 can be fixed to avoid the situation that the battery cell moves in the subsequent carrying or glue filling process. In the second position, the distance between the positioning element 320 and the fixing element 310 is greater than a first preset distance, and the first preset distance is greater than the width of the first end wrapped with the solder 130, so as to ensure that the battery cell is smoothly mounted in the mounting cavity 201.

In actual production, the width of the first end wrapped with the solder 130 is required to be within a certain range, and the first preset distance can be reasonably set according to the range, which is not limited in the present application.

Based on the positioning assembly 300 of the present embodiment, the process of assembling the battery cell in the mounting cavity 201 can be as follows: the positioning member 320 is slid in a direction away from the fixing member 310 to increase the size of the positioning channel 301 (i.e., to increase the width of the positioning channel 301), then the battery cell is mounted in the mounting cavity 201, and the lead 120 enters the positioning channel 301 and moves in the positioning channel 301 during the mounting process, and after the battery cell is mounted in the mounting cavity 201, the positioning member 320 is slid in a direction close to the fixing member 310 to decrease the width of the positioning channel 301 and press the lead 120 against the fixing member 310.

In this embodiment, through the size adjustment of the positioning channel 301, the accurate positioning of the lead 120 can be achieved while the battery cell is smoothly mounted to the mounting cavity 201 through the positioning assembly 300, so that the contradiction problem that the battery cell is smoothly positioned accurately on the lead 120 through the positioning assembly 300 and the positioning channel 301 is solved.

In order to avoid interference between the positioning element 320 and the first end in the first position, the distance between the positioning element 320 and the bearing surface 241 may be greater than the second predetermined distance. The second preset distance is greater than the height of the first end. It should be understood that in actual production, the height of the first end is required to be within a certain range, and the second preset distance may be reasonably set according to the range, which is not limited by the present application.

The fixing member 310 may have a block structure and extend in a vertical direction, and the fixing member 310 may have a plate structure and extend in a vertical direction.

Wherein the retainer 320 is in contact engagement with the circumferential side wall of the mounting cavity 201.

Referring to fig. 6-9, in some embodiments of the present application, a circumferential sidewall of the installation cavity 201 is provided with sliding rails 230 corresponding to the positioning members 320 one by one, and the positioning members 320 are provided with first sliding grooves 321 and are slidably disposed on the sliding rails 230 through the first sliding grooves 321. The side of the sliding rail 230 near the fixing member 310 is provided with a first stop surface 231. The top wall of the first chute 321 is provided with a first accommodating groove 322, the first accommodating groove 322 accommodates a locking member 330, and the locking member 330 has a first stop portion 3311. The locking member 330 is rotatably provided to move between the storage position and the extended position, and the rotational axis of the locking member 330 is disposed perpendicular to the sliding direction of the positioning member 320. When in the storage position, the locking member 330 is located in the first accommodating groove 322 to avoid interference between the positioning member 320 and the sliding rail 230 when sliding along the sliding rail 230, and when in the extended position, the locking member 330 extends out of the first accommodating groove 322 to make the first stop portion 3311 and the first stop surface 231 in stop fit along the moving direction of the positioning member 320 so as to lock the fixing member 310 in the current position, and the positioning member 320 is in the first position. The center of gravity of the locking member 330 is located at a side of the rotation axis of the locking member 330 away from the fixing member 310, so that the locking member 330 can automatically rotate from the storage position to the extended position under the action of self weight.

The first accommodating groove 322 includes a first groove sidewall 3221, a second groove sidewall 3222 and a third groove sidewall that are connected, the first groove sidewall 3221 is a groove sidewall of the first accommodating groove 322 that is close to the fixing member 310, and the second groove sidewall 3222 and the third groove sidewall are respectively located at two sides of the first groove sidewall 3221 and are opposite to each other. The locking member 330 includes a locking block 331 and a sleeve 332 connected, a support shaft 323 is installed between the second groove sidewall 3222 and the third groove sidewall, and the sleeve 332 is movably sleeved on the support shaft 323 so that the locking member 330 can rotate around the support shaft 323. The locking block 331 is remote from the second side surface 3313 of the sleeve 332, and the first stop portion 3311 is a top edge of the second side surface 3313 and is in stop-fit with the first stop surface 231 via the top edge of the second side surface 3313. The first stop surface 231 may be a plane and disposed perpendicular to the sliding direction of the positioning element 320.

Wherein the locking member 330 is provided with a second stop surface 3341. In the extended position, the second stop surface 3341 of the locking member 330 cooperates with a wall surface stop of the first slot sidewall 3221 to ensure stability of the locking member 330 in the extended position and stability of the positioning constraint of the positioning assembly 300 on the guide pin 120.

The first sliding groove 321 may be a T-shaped groove, and the shape of the sliding rail 230 is adapted to the shape of the first sliding groove 321.

In some embodiments of the present application, the locking member 330 is provided with a toggle member 333, the positioning member 320 is provided with a guide groove (not shown in fig. 6), the guide groove is disposed corresponding to the rotation path of the toggle member 333, the guide groove penetrates the fixing member 310 along the rotation axial direction of the toggle member 333, and one end of the guide groove is located on the groove side wall of the corresponding notch of the first sliding groove 321. The toggle member 333 is disposed through the guide slot and one end of the toggle member extends out of the guide slot. When the locking member 330 moves between the storage position and the extended position, the toggle member 333 moves in the guide groove along with the locking member 330. By providing the toggle 333, an installer can conveniently and timely and accurately know whether the locking member 330 reaches the extended position by observing the position of the toggle 333.

In order to avoid interference of the groove wall of the guide groove to the rotation of the stirring part 333, a gap is formed between the two groove walls extending along the rotation direction of the stirring part 333 in the guide groove and the stirring part 333.

In some embodiments of the application, the locking member 330 has a first side 3312, the first side 3312 being disposed opposite the first slot sidewall 3221 when the locking member 330 is in the extended position. The first side 3312 is concavely provided with a second accommodating groove 3314, and the toggle member 333 is disposed in the second accommodating groove 3314. One side of the toggle member 333 is provided with a first protruding portion 334, the first protruding portion 334 protrudes from the first side surface 3312, and the second stop surface 3341 is located on the first protruding portion 334. The toggle member 333 is slidably disposed along the rotational axis of the locking member 330 to move between a blocking position, in which the second blocking surface 3341 is disposed at least partially opposite to the wall surface of the first groove side wall 3221 in the rotational direction of the locking member 330, such that the second blocking surface 3341 can be in blocking engagement with the wall surface of the first groove side wall 3221 in the extended position of the locking member 330 to ensure the stability of the current position of the locking member 330. In the avoidance position, the second stop surface 3341 is staggered from the wall surface of the first groove side wall 3221 along the rotation direction of the locking member 330, so as to release the stop fit between the second stop surface 3341 and the wall surface of the first groove side wall 3221, so as to release the locking of the positioning member 320 located at the first position, and facilitate the position adjustment of the guide needle 120 clamped in the positioning channel 301.

The second accommodating groove 3314 may be a T-shaped groove, and the first protrusion 334 extends out of the first side surface 3312 through a notch of the second accommodating groove 3314. The toggle 333 may be rod-shaped or plate-shaped, etc. The first protruding portion 334 may be hemispherical, so as to reduce the difficulty of moving the toggle member 333 from the blocking position to the avoiding position.

Wherein, the second accommodation groove 3314 includes a fourth groove sidewall opposite to the notch, the fourth groove sidewall is provided with a groove, the groove extends along the sliding direction of the poking part 333, the poking part 333 is provided with a second protruding part, and the second protruding part is inserted into the groove. The second protruding portion cooperates with an end stop of the groove to prevent the toggle member 333 from sliding out of the second accommodating groove 3314.

It should be appreciated that the toggle 333 is normally located in the blocking position, and only when the positioning member 320 in the first position needs to be unlocked, the toggle 333 needs to be pulled to be switched to the retracted position.

In some embodiments of the present application, the mounting cavity 201 includes two opposite first sidewalls 221, and two positioning assemblies 300 are disposed on each of the two first sidewalls 221 at intervals, that is, the cell is a four-pin cell, so as to form a four-pin film capacitor. The two sliding rails 230 on the first sidewall 221 are spaced apart to form a mounting channel 302. The battery cell casing further includes a driving member (not shown in fig. 6-8) and pushing members 340 disposed in one-to-one correspondence with the sliding rails 230, where the pushing members 340 are provided with second sliding grooves and slidably disposed on the sliding rails 230 through the second sliding grooves. The pushing member 340 is located at a side of the positioning member 320 away from the fixing member 310. The first sliding groove 321 and the second sliding groove are slidably mounted on the corresponding sliding rail 230 through the mounting channel 302. The pushing member 340 is provided with a first pushing surface 342 at one end far away from the fixing member 310, the first pushing surface 342 is arranged in a downward inclined manner along the direction far away from the fixing member 310, the driving member is located between the two pushing members 340, and two sides of the driving member are provided with second pushing surfaces which are respectively arranged in parallel with the adjacent first pushing surfaces 342. The driving member is movably disposed along the vertical direction, wherein during the moving process, the driving member is in pushing engagement with the first pushing surface 342 through the second pushing surface so as to move the positioning member 320 to the first position through the pushing member 340. Through the structure, the fixing piece 310 can be switched from the second position to the first position by being convenient for the staff to drive the driving piece to move downwards, the structure is simple and effective, and the driving piece and the two pushing pieces 340 can be detached for other battery cell shells, so that the cost is reduced.

The pushing element 340 may exit the sliding rail 230 through the mounting channel 302, so as to separate the pushing element 340 from the sliding rail 230, so as to reduce the number of structures in the mounting cavity 201.

Wherein, the side surface of the pushing member 340 away from the fixing member 310 is convexly provided with two opposite guiding protrusions 341, and the first pushing surface 342 is located between the two guiding protrusions 341. The distance between the two guide protrusions 341 is adapted to the thickness of the driving member so that the driving member is inserted therebetween, thereby preventing the driving member from being displaced during the downward movement.

Wherein, the pushing member 340 and the driving member may have plate structures.

The embodiment of the application also provides a multi-needle type film capacitor which comprises the battery cell shell.

It is to be understood that the above references to the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for convenience in describing the present invention and simplifying the description only, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "plurality" is three or more.

The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.

Claims

1. Cell casing for multi-needle type film capacitor, multi-needle type film capacitor includes the electric core, the electric core is provided with a plurality of guide pins, its characterized in that, the cell casing includes:

The battery pack comprises a shell body, a battery pack and a battery pack, wherein one side of the shell body is provided with an opening, and an installation cavity for installing the battery pack is formed in the shell body;

The positioning components are arranged on the circumferential side wall of the mounting cavity, the positioning components are all provided with positioning channels which are vertically arranged, wherein when the battery cell is arranged in the mounting cavity through the opening, the plurality of guide pins respectively pass through the positioning channels and are positioned in the positioning channels, the positioning components comprise fixing pieces and positioning pieces, the fixing pieces are fixedly arranged on the circumferential side wall of the mounting cavity, the positioning pieces and the fixing pieces are arranged at intervals to form the positioning channels, the positioning pieces are slidably arranged on the circumferential side wall of the mounting cavity along the direction approaching or separating from the fixing pieces to move between a first position and a second position, when in the first position, the positioning pieces push the guide pins to press the guide pins against the positioning pieces, when in the second position, the distance between the positioning piece and the fixing piece is larger than a first preset distance, the circumferential side wall of the installation cavity is provided with sliding rails which are in one-to-one correspondence with the positioning piece, the positioning piece is provided with a first sliding groove and is arranged on the sliding rail in a sliding manner through the first sliding groove, one side of the sliding rail, which is close to the fixing piece, is provided with a first stop surface, the top groove wall of the first sliding groove is provided with a first accommodating groove, a locking piece is arranged in the first accommodating groove, the locking piece is provided with a first stop part, the locking piece is rotatably arranged to move between a containing position and an extending position, when in the containing position, the locking piece is positioned in the first accommodating groove, when in the extending position, the locking piece extends out of the first accommodating groove, the first stop part is matched with the first stop surface in a stop way along the moving direction of the positioning piece, the rotating axial direction of the locking piece is perpendicular to the sliding direction of the positioning piece, and the gravity center of the locking piece is located at one side, far away from the fixing piece, of the rotating axial direction of the locking piece.

2. The cell housing for a multi-pin thin film capacitor of claim 1, wherein the first receiving slot has a first slot side wall adjacent the securing member, and the locking member has a second stop surface that, in the extended position, stops against a wall surface of the first slot side wall.

3. The cell case for a multi-needle type thin film capacitor according to claim 2, wherein the locking member is provided with a stirring member, the positioning member is provided with a guide groove, the guide groove is disposed corresponding to a rotation path of the stirring member, the stirring member is disposed through the guide groove, one end of the stirring member extends out of the guide groove, and a gap is formed between two groove walls extending in a rotation direction of the stirring member in the guide groove and the stirring member.

4. The cell case for a multi-pin type thin film capacitor according to claim 3, wherein the locking member has a first side surface in which a second accommodation groove is concavely provided, the striking member is provided in the second accommodation groove, one side of the striking member is provided with a first protrusion protruding from the first side surface, and the second stopper surface is provided in the first protrusion, wherein the striking member is slidably provided in a rotational axis direction of the locking member to move between a stopper position in which the second stopper surface is provided at least partially opposite to a wall surface of a side wall of the first groove in a rotational direction of the locking member, and an escape position in which the second stopper surface is provided offset from the wall surface of the side wall of the first groove in the rotational direction of the locking member.

5. The cell case for a multi-pin thin film capacitor according to claim 4, wherein the mounting cavity comprises two opposite first side walls, wherein two positioning assemblies are arranged on the two first side walls at intervals, and two sliding rails on the first side walls are arranged at intervals to form a mounting channel;

The battery cell casing still includes the driving piece and with the pushing piece that the slide rail one-to-one set up, the pushing piece is provided with the second spout, first spout with the second spout is all through installation passageway slidable mounting is in correspondence the slide rail, just the pushing piece is located the setting element is kept away from one side of mounting, the pushing piece is kept away from one end of mounting is provided with first pushing surface, first pushing surface is along keeping away from the direction downward sloping setting of mounting, the driving piece is located two between the pushing piece and the both sides of driving piece all are provided with the second pushing surface, the driving piece is along vertical direction movably setting, wherein in the removal process, the driving piece passes through the second pushing surface with first pushing surface pushes away the cooperation in order to pass through the pushing piece will the setting element moves to first position.

6. The cell casing for a multi-pin thin film capacitor as claimed in any one of claims 1 to 5, wherein the mounting cavity has a bearing surface for bearing the cell therein, and the bearing surface is arc-shaped.

7. The cell housing for a multi-pin thin film capacitor of claim 6, wherein a spacing between the positioning member and the bearing surface is greater than a second predetermined distance.

8. A multi-pin film capacitor comprising the cell housing of any one of claims 1-7.